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boost-1.33
| Author | SHA1 | Date | |
|---|---|---|---|
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72c5cc395a | ||
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@@ -1,88 +1,105 @@
|
||||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||||
|
||||
<html>
|
||||
<head>
|
||||
<title>Smart Pointer Changes</title>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
</head>
|
||||
<body bgcolor="#ffffff" text="#000000">
|
||||
<h1><A href="../../index.htm"><img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle" width="277" height="86"
|
||||
border="0"></A>Smart Pointer Changes</h1>
|
||||
<p>The February 2002 change to the Boost smart pointers introduced a number of
|
||||
changes. Since the previous version of the smart pointers was in use for a long
|
||||
time, it's useful to have a detailed list of what changed from a library user's
|
||||
point of view.</p>
|
||||
<p>Note that for compilers that don't support member templates well enough, a
|
||||
separate implementation is used that lacks many of the new features and is more
|
||||
like the old version.</p>
|
||||
<h2>Features Requiring Code Changes to Take Advantage</h2>
|
||||
<ul>
|
||||
<li>
|
||||
The smart pointer class templates now each have their own header file. For
|
||||
compatibility, the <a href="../../boost/smart_ptr.hpp"><boost/smart_ptr.hpp></a>
|
||||
header now includes the headers for the four classic smart pointer class
|
||||
templates.
|
||||
<li>
|
||||
The <b>weak_ptr</b>
|
||||
template was added.
|
||||
<li>
|
||||
The new <b>shared_ptr</b> and <b>shared_array</b> relax the requirement that
|
||||
the pointed-to object's destructor must be visible when instantiating the <b>shared_ptr</b>
|
||||
destructor. This makes it easier to have shared_ptr members in classes without
|
||||
explicit destructors.
|
||||
<li>
|
||||
A custom deallocator can be passed in when creating a <b>shared_ptr</b> or <b>shared_array</b>.
|
||||
<li>
|
||||
<b>shared_static_cast</b> and <b>shared_dynamic_cast</b> function templates are
|
||||
provided which work for <b>shared_ptr</b> and <b>weak_ptr</b> as <b>static_cast</b>
|
||||
and <b>dynamic_cast</b>
|
||||
do for pointers.
|
||||
<li>
|
||||
The self-assignment misfeature has been removed from <b>shared_ptr::reset</b>,
|
||||
although it is still present in <b>scoped_ptr</b>, and in <b>std::auto_ptr</b>.
|
||||
Calling <b>reset</b> with a pointer to the object that's already owned by the <b>shared_ptr</b>
|
||||
results in undefined behavior (an assertion, or eventually a double-delete if
|
||||
assertions are off).
|
||||
<li>
|
||||
The <b>BOOST_SMART_PTR_CONVERSION</b>
|
||||
feature has been removed.
|
||||
<li>
|
||||
<b>shared_ptr<void></b> is now allowed.</li>
|
||||
</ul>
|
||||
<h2>Features That Improve Robustness</h2>
|
||||
<ul>
|
||||
<li>
|
||||
The manipulation of use counts is now <a name="threadsafe">thread safe</a> on
|
||||
Windows, Linux, and platforms that support pthreads. See the <a href="../../boost/detail/atomic_count.hpp">
|
||||
<boost/detail/atomic_count.hpp></a>
|
||||
file for details
|
||||
<li>
|
||||
The new shared_ptr will always delete the object using the pointer it was
|
||||
originally constructed with. This prevents subtle problems that could happen if
|
||||
the last <b>shared_ptr</b> was a pointer to a sub-object of a class that did
|
||||
not have a virtual destructor.</li>
|
||||
</ul>
|
||||
<h2>Implementation Details</h2>
|
||||
<ul>
|
||||
<li>
|
||||
Some bugs in the assignment operator implementations and in <b>reset</b>
|
||||
have been fixed by using the "copy and swap" idiom.
|
||||
<li>
|
||||
Assertions have been added to check preconditions of various functions;
|
||||
however, since these use the new <a href="../../boost/assert.hpp"><boost/assert.hpp></a>
|
||||
header, the assertions are disabled by default.
|
||||
<li>
|
||||
The partial specialization of <b>std::less</b> has been replaced by <b>operator<</b>
|
||||
overloads which accomplish the same thing without relying on undefined
|
||||
behavior.
|
||||
<li>
|
||||
The incorrect overload of <b>std::swap</b> has been replaced by <b>boost::swap</b>,
|
||||
which has many of the same advantages for generic programming but does not
|
||||
violate the C++ standard.</li>
|
||||
</ul>
|
||||
<hr>
|
||||
<p>Revised 1 February 2002</p>
|
||||
<p><small>Copyright 2002 Darin Adler. Distributed under the Boost Software License, Version
|
||||
1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or
|
||||
copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
|
||||
</body>
|
||||
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<title>Smart Pointer Changes</title>
|
||||
</head>
|
||||
|
||||
<body bgcolor="#FFFFFF" text="#000000">
|
||||
|
||||
<h1><img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle" width="277" height="86">Smart
|
||||
Pointer Changes</h1>
|
||||
|
||||
<p>The February 2002 change to the Boost smart pointers introduced a number
|
||||
of changes. Since the previous version of the smart pointers was in use for
|
||||
a long time, it's useful to have a detailed list of what changed from a library
|
||||
user's point of view.</p>
|
||||
|
||||
<p>Note that for compilers that don't support member templates well enough,
|
||||
a separate implementation is used that lacks many of the new features and is
|
||||
more like the old version.</p>
|
||||
|
||||
<h2>Features Requiring Code Changes to Take Advantage</h2>
|
||||
|
||||
<ul>
|
||||
|
||||
<li>The smart pointer class templates now each have their own header file.
|
||||
For compatibility, the
|
||||
<a href="../../boost/smart_ptr.hpp"><boost/smart_ptr.hpp></a>
|
||||
header now includes the headers for the four classic smart pointer class templates.</li>
|
||||
|
||||
<li>The <b>weak_ptr</b> template was added.</li>
|
||||
|
||||
<li>The new <b>shared_ptr</b> and <b>shared_array</b> relax the requirement that the pointed-to object's
|
||||
destructor must be visible when instantiating the <b>shared_ptr</b> destructor.
|
||||
This makes it easier to have shared_ptr members in classes without explicit destructors.</li>
|
||||
|
||||
<li>A custom deallocator can be passed in when creating a <b>shared_ptr</b> or <b>shared_array</b>.</li>
|
||||
|
||||
<li><b>shared_static_cast</b> and <b>shared_dynamic_cast</b> function templates are
|
||||
provided which work for <b>shared_ptr</b> and <b>weak_ptr</b> as <b>static_cast</b> and
|
||||
<b>dynamic_cast</b> do for pointers.</li>
|
||||
|
||||
<li>The self-assignment misfeature has been removed from <b>shared_ptr::reset</b>,
|
||||
although it is still present in <b>scoped_ptr</b>, and in <b>std::auto_ptr</b>.
|
||||
Calling <b>reset</b> with a pointer to the object that's already owned by the
|
||||
<b>shared_ptr</b> results in undefined behavior
|
||||
(an assertion, or eventually a double-delete if assertions are off).</li>
|
||||
|
||||
<li>The <b>BOOST_SMART_PTR_CONVERSION</b> feature has been removed.</li>
|
||||
|
||||
<li><b>shared_ptr<void></b> is now allowed.</li>
|
||||
|
||||
</ul>
|
||||
|
||||
<h2>Features That Improve Robustness</h2>
|
||||
|
||||
<ul>
|
||||
|
||||
<li>The manipulation of use counts is now <a name="threadsafe">thread safe</a> on Windows, Linux, and platforms
|
||||
that support pthreads. See the
|
||||
<a href="../../boost/detail/atomic_count.hpp"><boost/detail/atomic_count.hpp></a>
|
||||
file for details</li>
|
||||
|
||||
<li>The new shared_ptr will always delete the object using the pointer it was originally constructed with.
|
||||
This prevents subtle problems that could happen if the last <b>shared_ptr</b> was a pointer to a sub-object
|
||||
of a class that did not have a virtual destructor.</li>
|
||||
|
||||
</ul>
|
||||
|
||||
<h2>Implementation Details</h2>
|
||||
|
||||
<ul>
|
||||
|
||||
<li>Some bugs in the assignment operator implementations and in <b>reset</b>
|
||||
have been fixed by using the "copy and swap" idiom.</li>
|
||||
|
||||
<li>Assertions have been added to check preconditions of various functions;
|
||||
however, since these use the new
|
||||
<a href="../../boost/assert.hpp"><boost/assert.hpp></a>
|
||||
header, the assertions are disabled by default.</li>
|
||||
|
||||
<li>The partial specialization of <b>std::less</b> has been replaced by <b>operator<</b>
|
||||
overloads which accomplish the same thing without relying on undefined behavior.</li>
|
||||
|
||||
<li>The incorrect overload of <b>std::swap</b> has been replaced by <b>boost::swap</b>, which
|
||||
has many of the same advantages for generic programming but does not violate the C++ standard.</li>
|
||||
|
||||
</ul>
|
||||
|
||||
<hr>
|
||||
|
||||
<p>Revised 1 February 2002</p>
|
||||
|
||||
<p>Copyright 2002 Darin Adler.
|
||||
Permission to copy, use,
|
||||
modify, sell and distribute this document is granted provided this copyright
|
||||
notice appears in all copies. This document is provided "as is"
|
||||
without express or implied warranty, and with no claim as to its suitability for
|
||||
any purpose.</p>
|
||||
|
||||
</body>
|
||||
|
||||
</html>
|
||||
|
||||
@@ -7,9 +7,10 @@
|
||||
<body bgcolor="white" style="MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%">
|
||||
<table border="0" width="100%">
|
||||
<tr>
|
||||
<td width="277"><A href="../../index.htm"> <img src="../../boost.png" alt="boost.png (6897 bytes)" width="277" height="86" border="0"></A>
|
||||
<td width="277">
|
||||
<img src="../../boost.png" alt="boost.png (6897 bytes)" width="277" height="86">
|
||||
</td>
|
||||
<td align="center">
|
||||
<td align="middle">
|
||||
<h1>enable_shared_from_this.hpp</h1>
|
||||
</td>
|
||||
</tr>
|
||||
@@ -29,24 +30,20 @@
|
||||
and <STRONG>shared_ptr<T const></STRONG>, depending on constness, to <STRONG>this</STRONG>.</P>
|
||||
<h3><a name="Example">Example</a></h3>
|
||||
<pre>
|
||||
#include <boost/enable_shared_from_this.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
#include <cassert>
|
||||
|
||||
class Y: public boost::enable_shared_from_this<Y>
|
||||
class Y: public enable_shared_from_this<Y>
|
||||
{
|
||||
public:
|
||||
|
||||
boost::shared_ptr<Y> f()
|
||||
shared_ptr<Y> f()
|
||||
{
|
||||
return shared_from_this();
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
boost::shared_ptr<Y> p(new Y);
|
||||
boost::shared_ptr<Y> q = p->f();
|
||||
shared_ptr<Y> p(new Y);
|
||||
shared_ptr<Y> q = p->f();
|
||||
assert(p == q);
|
||||
assert(!(p < q || q < p)); // p and q must share ownership
|
||||
}
|
||||
@@ -88,8 +85,9 @@ public:
|
||||
</blockquote>
|
||||
<p>
|
||||
<br>
|
||||
<small>Copyright <20> 2002, 2003 by Peter Dimov. Distributed under the Boost Software License, Version
|
||||
1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or
|
||||
copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
|
||||
<small>Copyright <20> 2002, 2003 by Peter Dimov. Permission to copy, use, modify, sell
|
||||
and distribute this document is granted provided this copyright notice appears
|
||||
in all copies. This document is provided "as is" without express or implied
|
||||
warranty, and with no claim as to its suitability for any purpose.</small></p>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
@@ -12,10 +12,97 @@
|
||||
//
|
||||
// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// typedef <implementation-defined> boost::detail::atomic_count;
|
||||
//
|
||||
// atomic_count a(n);
|
||||
//
|
||||
// (n is convertible to long)
|
||||
//
|
||||
// Effects: Constructs an atomic_count with an initial value of n
|
||||
//
|
||||
// a;
|
||||
//
|
||||
// Returns: (long) the current value of a
|
||||
//
|
||||
// ++a;
|
||||
//
|
||||
// Effects: Atomically increments the value of a
|
||||
// Returns: nothing
|
||||
//
|
||||
// --a;
|
||||
//
|
||||
// Effects: Atomically decrements the value of a
|
||||
// Returns: (long) zero if the new value of a is zero,
|
||||
// unspecified non-zero value otherwise (usually the new value)
|
||||
//
|
||||
// Important note: when --a returns zero, it must act as a
|
||||
// read memory barrier (RMB); i.e. the calling thread must
|
||||
// have a synchronized view of the memory
|
||||
//
|
||||
// On Intel IA-32 (x86) memory is always synchronized, so this
|
||||
// is not a problem.
|
||||
//
|
||||
// On many architectures the atomic instructions already act as
|
||||
// a memory barrier.
|
||||
//
|
||||
// This property is necessary for proper reference counting, since
|
||||
// a thread can update the contents of a shared object, then
|
||||
// release its reference, and another thread may immediately
|
||||
// release the last reference causing object destruction.
|
||||
//
|
||||
// The destructor needs to have a synchronized view of the
|
||||
// object to perform proper cleanup.
|
||||
//
|
||||
// Original example by Alexander Terekhov:
|
||||
//
|
||||
// Given:
|
||||
//
|
||||
// - a mutable shared object OBJ;
|
||||
// - two threads THREAD1 and THREAD2 each holding
|
||||
// a private smart_ptr object pointing to that OBJ.
|
||||
//
|
||||
// t1: THREAD1 updates OBJ (thread-safe via some synchronization)
|
||||
// and a few cycles later (after "unlock") destroys smart_ptr;
|
||||
//
|
||||
// t2: THREAD2 destroys smart_ptr WITHOUT doing any synchronization
|
||||
// with respect to shared mutable object OBJ; OBJ destructors
|
||||
// are called driven by smart_ptr interface...
|
||||
//
|
||||
|
||||
#include <boost/smart_ptr/detail/atomic_count.hpp>
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#ifndef BOOST_HAS_THREADS
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
typedef long atomic_count;
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#elif defined(BOOST_AC_USE_PTHREADS)
|
||||
# include <boost/detail/atomic_count_pthreads.hpp>
|
||||
#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
|
||||
# include <boost/detail/atomic_count_win32.hpp>
|
||||
#elif defined(__GLIBCPP__) || defined(__GLIBCXX__)
|
||||
# include <boost/detail/atomic_count_gcc.hpp>
|
||||
#elif defined(BOOST_HAS_PTHREADS)
|
||||
# define BOOST_AC_USE_PTHREADS
|
||||
# include <boost/detail/atomic_count_pthreads.hpp>
|
||||
#else
|
||||
|
||||
// Use #define BOOST_DISABLE_THREADS to avoid the error
|
||||
#error Unrecognized threading platform
|
||||
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_ATOMIC_COUNT_GCC_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_ATOMIC_COUNT_GCC_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// boost/detail/atomic_count_gcc.hpp
|
||||
@@ -17,11 +17,7 @@
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#if __GNUC__ * 100 + __GNUC_MINOR__ >= 402
|
||||
# include <ext/atomicity.h>
|
||||
#else
|
||||
# include <bits/atomicity.h>
|
||||
#endif
|
||||
#include <bits/atomicity.h>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
@@ -40,21 +36,21 @@ class atomic_count
|
||||
{
|
||||
public:
|
||||
|
||||
explicit atomic_count( long v ) : value_( v ) {}
|
||||
explicit atomic_count(long v) : value_(v) {}
|
||||
|
||||
long operator++()
|
||||
void operator++()
|
||||
{
|
||||
return __exchange_and_add( &value_, +1 ) + 1;
|
||||
__atomic_add(&value_, 1);
|
||||
}
|
||||
|
||||
long operator--()
|
||||
{
|
||||
return __exchange_and_add( &value_, -1 ) - 1;
|
||||
return __exchange_and_add(&value_, -1) - 1;
|
||||
}
|
||||
|
||||
operator long() const
|
||||
{
|
||||
return __exchange_and_add( &value_, 0 );
|
||||
return __exchange_and_add(&value_, 0);
|
||||
}
|
||||
|
||||
private:
|
||||
@@ -69,4 +65,4 @@ private:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_ATOMIC_COUNT_GCC_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_PTHREADS_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_PTHREADS_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_ATOMIC_COUNT_PTHREADS_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_ATOMIC_COUNT_PTHREADS_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// boost/detail/atomic_count_pthreads.hpp
|
||||
@@ -62,10 +62,10 @@ public:
|
||||
pthread_mutex_destroy(&mutex_);
|
||||
}
|
||||
|
||||
long operator++()
|
||||
void operator++()
|
||||
{
|
||||
scoped_lock lock(mutex_);
|
||||
return ++value_;
|
||||
++value_;
|
||||
}
|
||||
|
||||
long operator--()
|
||||
@@ -93,4 +93,4 @@ private:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_PTHREADS_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_ATOMIC_COUNT_PTHREADS_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
@@ -60,4 +60,4 @@ private:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_BAD_WEAK_PTR_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_BAD_WEAK_PTR_HPP_INCLUDED
|
||||
#ifndef BOOST_BAD_WEAK_PTR_HPP_INCLUDED
|
||||
#define BOOST_BAD_WEAK_PTR_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
@@ -8,7 +8,7 @@
|
||||
#endif
|
||||
|
||||
//
|
||||
// boost/smart_ptr/bad_weak_ptr.hpp
|
||||
// detail/bad_weak_ptr.hpp
|
||||
//
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
|
||||
//
|
||||
@@ -42,7 +42,7 @@ public:
|
||||
|
||||
virtual char const * what() const throw()
|
||||
{
|
||||
return "tr1::bad_weak_ptr";
|
||||
return "boost::bad_weak_ptr";
|
||||
}
|
||||
};
|
||||
|
||||
@@ -56,4 +56,4 @@ public:
|
||||
# pragma warn .8026 // Functions with excep. spec. are not expanded inline
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_BAD_WEAK_PTR_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_BAD_WEAK_PTR_HPP_INCLUDED
|
||||
@@ -12,11 +12,31 @@
|
||||
//
|
||||
// Copyright (c) 2002, 2003 Peter Dimov and Multi Media Ltd.
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// typedef <unspecified> boost::detail::lightweight_mutex;
|
||||
//
|
||||
// boost::detail::lightweight_mutex is a header-only implementation of
|
||||
// a subset of the Mutex concept requirements:
|
||||
//
|
||||
// http://www.boost.org/doc/html/threads/concepts.html#threads.concepts.Mutex
|
||||
//
|
||||
// It maps to a CRITICAL_SECTION on Windows or a pthread_mutex on POSIX.
|
||||
//
|
||||
|
||||
#include <boost/smart_ptr/detail/lightweight_mutex.hpp>
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#if !defined(BOOST_HAS_THREADS)
|
||||
# include <boost/detail/lwm_nop.hpp>
|
||||
#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
|
||||
# include <boost/detail/lwm_win32_cs.hpp>
|
||||
#elif defined(BOOST_HAS_PTHREADS)
|
||||
# include <boost/detail/lwm_pthreads.hpp>
|
||||
#else
|
||||
// Use #define BOOST_DISABLE_THREADS to avoid the error
|
||||
# error Unrecognized threading platform
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_LWM_NOP_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_LWM_NOP_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_LWM_NOP_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_LWM_NOP_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
@@ -34,4 +34,4 @@ public:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_LWM_NOP_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_LWM_NOP_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_LWM_PTHREADS_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_LWM_PTHREADS_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
@@ -17,7 +17,6 @@
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#include <boost/assert.hpp>
|
||||
#include <pthread.h>
|
||||
|
||||
namespace boost
|
||||
@@ -43,15 +42,15 @@ public:
|
||||
// HPUX 10.20 / DCE has a nonstandard pthread_mutex_init
|
||||
|
||||
#if defined(__hpux) && defined(_DECTHREADS_)
|
||||
BOOST_VERIFY( pthread_mutex_init( &m_, pthread_mutexattr_default ) == 0 );
|
||||
pthread_mutex_init(&m_, pthread_mutexattr_default);
|
||||
#else
|
||||
BOOST_VERIFY( pthread_mutex_init( &m_, 0 ) == 0 );
|
||||
pthread_mutex_init(&m_, 0);
|
||||
#endif
|
||||
}
|
||||
|
||||
~lightweight_mutex()
|
||||
{
|
||||
BOOST_VERIFY( pthread_mutex_destroy( &m_ ) == 0 );
|
||||
pthread_mutex_destroy(&m_);
|
||||
}
|
||||
|
||||
class scoped_lock;
|
||||
@@ -70,12 +69,12 @@ public:
|
||||
|
||||
scoped_lock(lightweight_mutex & m): m_(m.m_)
|
||||
{
|
||||
BOOST_VERIFY( pthread_mutex_lock( &m_ ) == 0 );
|
||||
pthread_mutex_lock(&m_);
|
||||
}
|
||||
|
||||
~scoped_lock()
|
||||
{
|
||||
BOOST_VERIFY( pthread_mutex_unlock( &m_ ) == 0 );
|
||||
pthread_mutex_unlock(&m_);
|
||||
}
|
||||
};
|
||||
};
|
||||
@@ -84,4 +83,4 @@ public:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_LWM_PTHREADS_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
@@ -29,7 +29,7 @@ namespace detail
|
||||
|
||||
#ifndef BOOST_USE_WINDOWS_H
|
||||
|
||||
struct critical_section
|
||||
struct CRITICAL_SECTION
|
||||
{
|
||||
struct critical_section_debug * DebugInfo;
|
||||
long LockCount;
|
||||
@@ -43,14 +43,10 @@ struct critical_section
|
||||
#endif
|
||||
};
|
||||
|
||||
extern "C" __declspec(dllimport) void __stdcall InitializeCriticalSection(critical_section *);
|
||||
extern "C" __declspec(dllimport) void __stdcall EnterCriticalSection(critical_section *);
|
||||
extern "C" __declspec(dllimport) void __stdcall LeaveCriticalSection(critical_section *);
|
||||
extern "C" __declspec(dllimport) void __stdcall DeleteCriticalSection(critical_section *);
|
||||
|
||||
#else
|
||||
|
||||
typedef ::CRITICAL_SECTION critical_section;
|
||||
extern "C" __declspec(dllimport) void __stdcall InitializeCriticalSection(CRITICAL_SECTION *);
|
||||
extern "C" __declspec(dllimport) void __stdcall EnterCriticalSection(CRITICAL_SECTION *);
|
||||
extern "C" __declspec(dllimport) void __stdcall LeaveCriticalSection(CRITICAL_SECTION *);
|
||||
extern "C" __declspec(dllimport) void __stdcall DeleteCriticalSection(CRITICAL_SECTION *);
|
||||
|
||||
#endif // #ifndef BOOST_USE_WINDOWS_H
|
||||
|
||||
@@ -58,7 +54,7 @@ class lightweight_mutex
|
||||
{
|
||||
private:
|
||||
|
||||
critical_section cs_;
|
||||
CRITICAL_SECTION cs_;
|
||||
|
||||
lightweight_mutex(lightweight_mutex const &);
|
||||
lightweight_mutex & operator=(lightweight_mutex const &);
|
||||
@@ -105,4 +101,4 @@ public:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SHARED_ARRAY_NMT_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SHARED_ARRAY_NMT_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_SHARED_ARRAY_NMT_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SHARED_ARRAY_NMT_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// detail/shared_array_nmt.hpp - shared_array.hpp without member templates
|
||||
@@ -17,7 +17,7 @@
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/checked_delete.hpp>
|
||||
#include <boost/throw_exception.hpp>
|
||||
#include <boost/smart_ptr/detail/atomic_count.hpp>
|
||||
#include <boost/detail/atomic_count.hpp>
|
||||
|
||||
#include <cstddef> // for std::ptrdiff_t
|
||||
#include <algorithm> // for std::swap
|
||||
@@ -148,4 +148,4 @@ template<class T> void swap(shared_array<T> & a, shared_array<T> & b)
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SHARED_ARRAY_NMT_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_SHARED_ARRAY_NMT_HPP_INCLUDED
|
||||
330
include/boost/detail/shared_count.hpp
Normal file
330
include/boost/detail/shared_count.hpp
Normal file
@@ -0,0 +1,330 @@
|
||||
#ifndef BOOST_DETAIL_SHARED_COUNT_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SHARED_COUNT_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/shared_count.hpp
|
||||
//
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
|
||||
// Copyright 2004-2005 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#ifdef __BORLANDC__
|
||||
# pragma warn -8027 // Functions containing try are not expanded inline
|
||||
#endif
|
||||
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/checked_delete.hpp>
|
||||
#include <boost/throw_exception.hpp>
|
||||
#include <boost/detail/bad_weak_ptr.hpp>
|
||||
#include <boost/detail/sp_counted_base.hpp>
|
||||
#include <boost/detail/sp_counted_impl.hpp>
|
||||
|
||||
#include <memory> // std::auto_ptr, std::allocator
|
||||
#include <functional> // std::less
|
||||
#include <new> // std::bad_alloc
|
||||
#include <typeinfo> // std::type_info in get_deleter
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
|
||||
int const shared_count_id = 0x2C35F101;
|
||||
int const weak_count_id = 0x298C38A4;
|
||||
|
||||
#endif
|
||||
|
||||
class weak_count;
|
||||
|
||||
class shared_count
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base * pi_;
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
int id_;
|
||||
#endif
|
||||
|
||||
friend class weak_count;
|
||||
|
||||
public:
|
||||
|
||||
shared_count(): pi_(0) // nothrow
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
}
|
||||
|
||||
template<class Y> explicit shared_count( Y * p ): pi_( 0 )
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
#ifndef BOOST_NO_EXCEPTIONS
|
||||
|
||||
try
|
||||
{
|
||||
pi_ = new sp_counted_impl_p<Y>( p );
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
boost::checked_delete( p );
|
||||
throw;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
pi_ = new sp_counted_impl_p<Y>( p );
|
||||
|
||||
if( pi_ == 0 )
|
||||
{
|
||||
boost::checked_delete( p );
|
||||
boost::throw_exception( std::bad_alloc() );
|
||||
}
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
template<class P, class D> shared_count(P p, D d): pi_(0)
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
#ifndef BOOST_NO_EXCEPTIONS
|
||||
|
||||
try
|
||||
{
|
||||
pi_ = new sp_counted_impl_pd<P, D>(p, d);
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
d(p); // delete p
|
||||
throw;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
pi_ = new sp_counted_impl_pd<P, D>(p, d);
|
||||
|
||||
if(pi_ == 0)
|
||||
{
|
||||
d(p); // delete p
|
||||
boost::throw_exception(std::bad_alloc());
|
||||
}
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifndef BOOST_NO_AUTO_PTR
|
||||
|
||||
// auto_ptr<Y> is special cased to provide the strong guarantee
|
||||
|
||||
template<class Y>
|
||||
explicit shared_count( std::auto_ptr<Y> & r ): pi_( new sp_counted_impl_p<Y>( r.get() ) )
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
#ifdef BOOST_NO_EXCEPTIONS
|
||||
|
||||
if( pi_ == 0 )
|
||||
{
|
||||
boost::throw_exception(std::bad_alloc());
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
r.release();
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
~shared_count() // nothrow
|
||||
{
|
||||
if( pi_ != 0 ) pi_->release();
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
id_ = 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
shared_count(shared_count const & r): pi_(r.pi_) // nothrow
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
if( pi_ != 0 ) pi_->add_ref_copy();
|
||||
}
|
||||
|
||||
explicit shared_count(weak_count const & r); // throws bad_weak_ptr when r.use_count() == 0
|
||||
|
||||
shared_count & operator= (shared_count const & r) // nothrow
|
||||
{
|
||||
sp_counted_base * tmp = r.pi_;
|
||||
|
||||
if( tmp != pi_ )
|
||||
{
|
||||
if( tmp != 0 ) tmp->add_ref_copy();
|
||||
if( pi_ != 0 ) pi_->release();
|
||||
pi_ = tmp;
|
||||
}
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
void swap(shared_count & r) // nothrow
|
||||
{
|
||||
sp_counted_base * tmp = r.pi_;
|
||||
r.pi_ = pi_;
|
||||
pi_ = tmp;
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return pi_ != 0? pi_->use_count(): 0;
|
||||
}
|
||||
|
||||
bool unique() const // nothrow
|
||||
{
|
||||
return use_count() == 1;
|
||||
}
|
||||
|
||||
friend inline bool operator==(shared_count const & a, shared_count const & b)
|
||||
{
|
||||
return a.pi_ == b.pi_;
|
||||
}
|
||||
|
||||
friend inline bool operator<(shared_count const & a, shared_count const & b)
|
||||
{
|
||||
return std::less<sp_counted_base *>()( a.pi_, b.pi_ );
|
||||
}
|
||||
|
||||
void * get_deleter(std::type_info const & ti) const
|
||||
{
|
||||
return pi_? pi_->get_deleter( ti ): 0;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
class weak_count
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base * pi_;
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
int id_;
|
||||
#endif
|
||||
|
||||
friend class shared_count;
|
||||
|
||||
public:
|
||||
|
||||
weak_count(): pi_(0) // nothrow
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(weak_count_id)
|
||||
#endif
|
||||
{
|
||||
}
|
||||
|
||||
weak_count(shared_count const & r): pi_(r.pi_) // nothrow
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
if(pi_ != 0) pi_->weak_add_ref();
|
||||
}
|
||||
|
||||
weak_count(weak_count const & r): pi_(r.pi_) // nothrow
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
if(pi_ != 0) pi_->weak_add_ref();
|
||||
}
|
||||
|
||||
~weak_count() // nothrow
|
||||
{
|
||||
if(pi_ != 0) pi_->weak_release();
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
id_ = 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
weak_count & operator= (shared_count const & r) // nothrow
|
||||
{
|
||||
sp_counted_base * tmp = r.pi_;
|
||||
if(tmp != 0) tmp->weak_add_ref();
|
||||
if(pi_ != 0) pi_->weak_release();
|
||||
pi_ = tmp;
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
weak_count & operator= (weak_count const & r) // nothrow
|
||||
{
|
||||
sp_counted_base * tmp = r.pi_;
|
||||
if(tmp != 0) tmp->weak_add_ref();
|
||||
if(pi_ != 0) pi_->weak_release();
|
||||
pi_ = tmp;
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
void swap(weak_count & r) // nothrow
|
||||
{
|
||||
sp_counted_base * tmp = r.pi_;
|
||||
r.pi_ = pi_;
|
||||
pi_ = tmp;
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return pi_ != 0? pi_->use_count(): 0;
|
||||
}
|
||||
|
||||
friend inline bool operator==(weak_count const & a, weak_count const & b)
|
||||
{
|
||||
return a.pi_ == b.pi_;
|
||||
}
|
||||
|
||||
friend inline bool operator<(weak_count const & a, weak_count const & b)
|
||||
{
|
||||
return std::less<sp_counted_base *>()(a.pi_, b.pi_);
|
||||
}
|
||||
};
|
||||
|
||||
inline shared_count::shared_count( weak_count const & r ): pi_( r.pi_ )
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
if( pi_ == 0 || !pi_->add_ref_lock() )
|
||||
{
|
||||
boost::throw_exception( boost::bad_weak_ptr() );
|
||||
}
|
||||
}
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#ifdef __BORLANDC__
|
||||
# pragma warn .8027 // Functions containing try are not expanded inline
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SHARED_COUNT_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SHARED_PTR_NMT_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SHARED_PTR_NMT_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_SHARED_PTR_NMT_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SHARED_PTR_NMT_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// detail/shared_ptr_nmt.hpp - shared_ptr.hpp without member templates
|
||||
@@ -17,7 +17,7 @@
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/checked_delete.hpp>
|
||||
#include <boost/throw_exception.hpp>
|
||||
#include <boost/smart_ptr/detail/atomic_count.hpp>
|
||||
#include <boost/detail/atomic_count.hpp>
|
||||
|
||||
#ifndef BOOST_NO_AUTO_PTR
|
||||
# include <memory> // for std::auto_ptr
|
||||
@@ -179,4 +179,4 @@ template<class T> inline T * get_pointer(shared_ptr<T> const & p)
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SHARED_PTR_NMT_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_SHARED_PTR_NMT_HPP_INCLUDED
|
||||
69
include/boost/detail/sp_counted_base.hpp
Normal file
69
include/boost/detail/sp_counted_base.hpp
Normal file
@@ -0,0 +1,69 @@
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_BASE_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/sp_counted_base.hpp
|
||||
//
|
||||
// Copyright 2005 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#if defined( BOOST_SP_DISABLE_THREADS )
|
||||
|
||||
# include <boost/detail/sp_counted_base_nt.hpp>
|
||||
|
||||
#elif defined( BOOST_SP_USE_PTHREADS )
|
||||
|
||||
# include <boost/detail/sp_counted_base_pt.hpp>
|
||||
|
||||
#elif defined( __GNUC__ ) && ( defined( __i386__ ) || defined( __x86_64__ ) )
|
||||
|
||||
# include <boost/detail/sp_counted_base_gcc_x86.hpp>
|
||||
|
||||
//~ #elif defined( __MWERKS__ ) && ( defined( __i386__ ) || defined( __x86_64__ ) )
|
||||
|
||||
//~ # include <boost/detail/sp_counted_base_cw_x86.hpp>
|
||||
|
||||
#elif defined( __GNUC__ ) && defined( __ia64__ ) && !defined( __INTEL_COMPILER )
|
||||
|
||||
# include <boost/detail/sp_counted_base_gcc_ia64.hpp>
|
||||
|
||||
#elif defined( __MWERKS__ ) && defined( __POWERPC__ )
|
||||
|
||||
# include <boost/detail/sp_counted_base_cw_ppc.hpp>
|
||||
|
||||
#elif defined( __GNUC__ ) && ( defined( __powerpc__ ) || defined( __ppc__ ) )
|
||||
|
||||
# include <boost/detail/sp_counted_base_gcc_ppc.hpp>
|
||||
|
||||
#elif defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ )
|
||||
|
||||
# include <boost/detail/sp_counted_base_w32.hpp>
|
||||
|
||||
#elif !defined( BOOST_HAS_THREADS )
|
||||
|
||||
# include <boost/detail/sp_counted_base_nt.hpp>
|
||||
|
||||
#elif defined( BOOST_HAS_PTHREADS )
|
||||
|
||||
# include <boost/detail/sp_counted_base_pt.hpp>
|
||||
|
||||
#else
|
||||
|
||||
// Use #define BOOST_DISABLE_THREADS to avoid the error
|
||||
# error Unrecognized threading platform
|
||||
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_CW_PPC_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_CW_PPC_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_CW_PPC_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_BASE_CW_PPC_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
@@ -24,7 +24,7 @@
|
||||
// formulation
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <typeinfo>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
@@ -123,8 +123,7 @@ public:
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
virtual void * get_deleter( std::type_info const & ti ) = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
@@ -168,4 +167,4 @@ public:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_CW_PPC_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_CW_PPC_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_CW_X86_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_CW_X86_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_CW_X86_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_BASE_CW_X86_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
@@ -25,7 +25,7 @@
|
||||
// formulation
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <typeinfo>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
@@ -111,8 +111,7 @@ public:
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
virtual void * get_deleter( std::type_info const & ti ) = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
@@ -156,4 +155,4 @@ public:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_CW_X86_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_X86_HPP_INCLUDED
|
||||
@@ -1,11 +1,11 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_IA64_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_IA64_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_IA64_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_BASE_GCC_IA64_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_gcc_ia64.hpp - g++ on IA64
|
||||
//
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
|
||||
// Copyright 2004-2006 Peter Dimov
|
||||
// Copyright 2004-2005 Peter Dimov
|
||||
// Copyright 2005 Ben Hutchings
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
@@ -16,7 +16,7 @@
|
||||
// Lock-free algorithm by Alexander Terekhov
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <typeinfo>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
@@ -24,55 +24,55 @@ namespace boost
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline void atomic_increment( int * pw )
|
||||
inline void atomic_increment( long * pw )
|
||||
{
|
||||
// ++*pw;
|
||||
|
||||
int tmp;
|
||||
long tmp;
|
||||
|
||||
// No barrier is required here but fetchadd always has an acquire or
|
||||
// release barrier associated with it. We choose release as it should be
|
||||
// cheaper.
|
||||
__asm__ ("fetchadd4.rel %0=%1,1" :
|
||||
__asm__ ("fetchadd8.rel %0=[%2],1" :
|
||||
"=r"(tmp), "=m"(*pw) :
|
||||
"m"( *pw ));
|
||||
"r"(pw));
|
||||
}
|
||||
|
||||
inline int atomic_decrement( int * pw )
|
||||
inline long atomic_decrement( long * pw )
|
||||
{
|
||||
// return --*pw;
|
||||
|
||||
int rv;
|
||||
long rv;
|
||||
|
||||
__asm__ (" fetchadd4.rel %0=%1,-1 ;; \n"
|
||||
__asm__ (" fetchadd8.rel %0=[%2],-1 ;; \n"
|
||||
" cmp.eq p7,p0=1,%0 ;; \n"
|
||||
"(p7) ld4.acq %0=%1 " :
|
||||
"(p7) ld8.acq %0=[%2] " :
|
||||
"=&r"(rv), "=m"(*pw) :
|
||||
"m"( *pw ) :
|
||||
"r"(pw) :
|
||||
"p7");
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
inline int atomic_conditional_increment( int * pw )
|
||||
inline long atomic_conditional_increment( long * pw )
|
||||
{
|
||||
// if( *pw != 0 ) ++*pw;
|
||||
// return *pw;
|
||||
|
||||
int rv, tmp, tmp2;
|
||||
long rv, tmp, tmp2;
|
||||
|
||||
__asm__ ("0: ld4 %0=%3 ;; \n"
|
||||
__asm__ ("0: ld8 %0=[%4] ;; \n"
|
||||
" cmp.eq p7,p0=0,%0 ;; \n"
|
||||
"(p7) br.cond.spnt 1f \n"
|
||||
" mov ar.ccv=%0 \n"
|
||||
" add %1=1,%0 ;; \n"
|
||||
" cmpxchg4.acq %2=%3,%1,ar.ccv ;; \n"
|
||||
" cmpxchg8.acq %2=[%4],%1,ar.ccv ;; \n"
|
||||
" cmp.ne p7,p0=%0,%2 ;; \n"
|
||||
"(p7) br.cond.spnt 0b \n"
|
||||
" mov %0=%1 ;; \n"
|
||||
"1:" :
|
||||
"=&r"(rv), "=&r"(tmp), "=&r"(tmp2), "=m"(*pw) :
|
||||
"m"( *pw ) :
|
||||
"r"(pw) :
|
||||
"ar.ccv", "p7");
|
||||
|
||||
return rv;
|
||||
@@ -85,8 +85,8 @@ private:
|
||||
sp_counted_base( sp_counted_base const & );
|
||||
sp_counted_base & operator= ( sp_counted_base const & );
|
||||
|
||||
int use_count_; // #shared
|
||||
int weak_count_; // #weak + (#shared != 0)
|
||||
long use_count_; // #shared
|
||||
long weak_count_; // #weak + (#shared != 0)
|
||||
|
||||
public:
|
||||
|
||||
@@ -110,8 +110,7 @@ public:
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
virtual void * get_deleter( std::type_info const & ti ) = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
@@ -147,7 +146,7 @@ public:
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return static_cast<int const volatile &>( use_count_ ); // TODO use ld.acq here
|
||||
return static_cast<long const volatile &>( use_count_ );
|
||||
}
|
||||
};
|
||||
|
||||
@@ -155,4 +154,4 @@ public:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_IA64_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_IA64_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_PPC_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_PPC_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_PPC_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_BASE_GCC_PPC_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
@@ -24,7 +24,7 @@
|
||||
// formulation
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <typeinfo>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
@@ -47,7 +47,7 @@ inline void atomic_increment( int * pw )
|
||||
"bne- 0b":
|
||||
|
||||
"=m"( *pw ), "=&b"( tmp ):
|
||||
"r"( pw ), "m"( *pw ):
|
||||
"r"( pw ):
|
||||
"cc"
|
||||
);
|
||||
}
|
||||
@@ -69,7 +69,7 @@ inline int atomic_decrement( int * pw )
|
||||
"isync":
|
||||
|
||||
"=m"( *pw ), "=&b"( rv ):
|
||||
"r"( pw ), "m"( *pw ):
|
||||
"r"( pw ):
|
||||
"memory", "cc"
|
||||
);
|
||||
|
||||
@@ -95,7 +95,7 @@ inline int atomic_conditional_increment( int * pw )
|
||||
"bne- 0b":
|
||||
|
||||
"=m"( *pw ), "=&b"( rv ):
|
||||
"r"( pw ), "m"( *pw ):
|
||||
"r"( pw ):
|
||||
"cc"
|
||||
);
|
||||
|
||||
@@ -134,8 +134,7 @@ public:
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
virtual void * get_deleter( std::type_info const & ti ) = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
@@ -179,4 +178,4 @@ public:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_PPC_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_PPC_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_X86_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_X86_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_X86_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_BASE_GCC_X86_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
@@ -24,7 +24,7 @@
|
||||
// formulation
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <typeinfo>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
@@ -126,8 +126,7 @@ public:
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
virtual void * get_deleter( std::type_info const & ti ) = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
@@ -171,4 +170,4 @@ public:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_X86_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_X86_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
@@ -18,7 +18,7 @@
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <typeinfo>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
@@ -58,8 +58,7 @@ public:
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
virtual void * get_deleter( std::type_info const & ti ) = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
@@ -105,4 +104,4 @@ public:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_PT_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_PT_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_PT_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_BASE_PT_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
@@ -18,7 +18,7 @@
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <typeinfo>
|
||||
#include <pthread.h>
|
||||
|
||||
namespace boost
|
||||
@@ -69,8 +69,7 @@ public:
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
virtual void * get_deleter( std::type_info const & ti ) = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
@@ -133,4 +132,4 @@ public:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_PT_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_PT_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_W32_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_W32_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_W32_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_BASE_W32_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
@@ -25,8 +25,7 @@
|
||||
//
|
||||
|
||||
#include <boost/detail/interlocked.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <typeinfo>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
@@ -66,8 +65,7 @@ public:
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
virtual void * get_deleter( std::type_info const & ti ) = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
@@ -80,19 +78,7 @@ public:
|
||||
{
|
||||
long tmp = static_cast< long const volatile& >( use_count_ );
|
||||
if( tmp == 0 ) return false;
|
||||
|
||||
#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, == 1200 )
|
||||
|
||||
// work around a code generation bug
|
||||
|
||||
long tmp2 = tmp + 1;
|
||||
if( BOOST_INTERLOCKED_COMPARE_EXCHANGE( &use_count_, tmp2, tmp ) == tmp2 - 1 ) return true;
|
||||
|
||||
#else
|
||||
|
||||
if( BOOST_INTERLOCKED_COMPARE_EXCHANGE( &use_count_, tmp + 1, tmp ) == tmp ) return true;
|
||||
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
@@ -128,4 +114,4 @@ public:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_W32_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_W32_HPP_INCLUDED
|
||||
@@ -1,5 +1,5 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
@@ -25,16 +25,14 @@
|
||||
#endif
|
||||
|
||||
#include <boost/checked_delete.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_counted_base.hpp>
|
||||
#include <boost/detail/sp_counted_base.hpp>
|
||||
|
||||
#if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
|
||||
#include <boost/smart_ptr/detail/quick_allocator.hpp>
|
||||
#include <boost/detail/quick_allocator.hpp>
|
||||
#endif
|
||||
|
||||
#if defined(BOOST_SP_USE_STD_ALLOCATOR)
|
||||
#include <memory> // std::allocator
|
||||
#endif
|
||||
|
||||
#include <typeinfo> // std::type_info in get_deleter
|
||||
#include <cstddef> // std::size_t
|
||||
|
||||
namespace boost
|
||||
@@ -78,12 +76,7 @@ public:
|
||||
boost::checked_delete( px_ );
|
||||
}
|
||||
|
||||
virtual void * get_deleter( detail::sp_typeinfo const & )
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
virtual void * get_untyped_deleter()
|
||||
virtual void * get_deleter( std::type_info const & )
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
@@ -140,11 +133,7 @@ public:
|
||||
|
||||
// pre: d(p) must not throw
|
||||
|
||||
sp_counted_impl_pd( P p, D & d ): ptr( p ), del( d )
|
||||
{
|
||||
}
|
||||
|
||||
sp_counted_impl_pd( P p ): ptr( p ), del()
|
||||
sp_counted_impl_pd( P p, D d ): ptr(p), del(d)
|
||||
{
|
||||
}
|
||||
|
||||
@@ -153,14 +142,9 @@ public:
|
||||
del( ptr );
|
||||
}
|
||||
|
||||
virtual void * get_deleter( detail::sp_typeinfo const & ti )
|
||||
virtual void * get_deleter( std::type_info const & ti )
|
||||
{
|
||||
return ti == BOOST_SP_TYPEID(D)? &reinterpret_cast<char&>( del ): 0;
|
||||
}
|
||||
|
||||
virtual void * get_untyped_deleter()
|
||||
{
|
||||
return &reinterpret_cast<char&>( del );
|
||||
return ti == typeid(D)? &del: 0;
|
||||
}
|
||||
|
||||
#if defined(BOOST_SP_USE_STD_ALLOCATOR)
|
||||
@@ -192,57 +176,6 @@ public:
|
||||
#endif
|
||||
};
|
||||
|
||||
template<class P, class D, class A> class sp_counted_impl_pda: public sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
P p_; // copy constructor must not throw
|
||||
D d_; // copy constructor must not throw
|
||||
A a_; // copy constructor must not throw
|
||||
|
||||
sp_counted_impl_pda( sp_counted_impl_pda const & );
|
||||
sp_counted_impl_pda & operator= ( sp_counted_impl_pda const & );
|
||||
|
||||
typedef sp_counted_impl_pda<P, D, A> this_type;
|
||||
|
||||
public:
|
||||
|
||||
// pre: d( p ) must not throw
|
||||
|
||||
sp_counted_impl_pda( P p, D & d, A a ): p_( p ), d_( d ), a_( a )
|
||||
{
|
||||
}
|
||||
|
||||
sp_counted_impl_pda( P p, A a ): p_( p ), d_(), a_( a )
|
||||
{
|
||||
}
|
||||
|
||||
virtual void dispose() // nothrow
|
||||
{
|
||||
d_( p_ );
|
||||
}
|
||||
|
||||
virtual void destroy() // nothrow
|
||||
{
|
||||
typedef typename A::template rebind< this_type >::other A2;
|
||||
|
||||
A2 a2( a_ );
|
||||
|
||||
this->~this_type();
|
||||
a2.deallocate( this, 1 );
|
||||
}
|
||||
|
||||
virtual void * get_deleter( detail::sp_typeinfo const & ti )
|
||||
{
|
||||
return ti == BOOST_SP_TYPEID( D )? &reinterpret_cast<char&>( d_ ): 0;
|
||||
}
|
||||
|
||||
virtual void * get_untyped_deleter()
|
||||
{
|
||||
return &reinterpret_cast<char&>( d_ );
|
||||
}
|
||||
};
|
||||
|
||||
#ifdef __CODEGUARD__
|
||||
# pragma option pop
|
||||
#endif
|
||||
@@ -251,4 +184,4 @@ public:
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
|
||||
@@ -1,135 +0,0 @@
|
||||
#ifndef BOOST_DETAIL_SP_TYPEINFO_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_TYPEINFO_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
// detail/sp_typeinfo.hpp
|
||||
//
|
||||
// Copyright 2007 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#if defined( BOOST_NO_TYPEID )
|
||||
|
||||
#include <boost/current_function.hpp>
|
||||
#include <functional>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class sp_typeinfo
|
||||
{
|
||||
private:
|
||||
|
||||
sp_typeinfo( sp_typeinfo const& );
|
||||
sp_typeinfo& operator=( sp_typeinfo const& );
|
||||
|
||||
char const * name_;
|
||||
|
||||
public:
|
||||
|
||||
explicit sp_typeinfo( char const * name ): name_( name )
|
||||
{
|
||||
}
|
||||
|
||||
bool operator==( sp_typeinfo const& rhs ) const
|
||||
{
|
||||
return this == &rhs;
|
||||
}
|
||||
|
||||
bool operator!=( sp_typeinfo const& rhs ) const
|
||||
{
|
||||
return this != &rhs;
|
||||
}
|
||||
|
||||
bool before( sp_typeinfo const& rhs ) const
|
||||
{
|
||||
return std::less< sp_typeinfo const* >()( this, &rhs );
|
||||
}
|
||||
|
||||
char const* name() const
|
||||
{
|
||||
return name_;
|
||||
}
|
||||
};
|
||||
|
||||
template<class T> struct sp_typeid_
|
||||
{
|
||||
static sp_typeinfo ti_;
|
||||
|
||||
static char const * name()
|
||||
{
|
||||
return BOOST_CURRENT_FUNCTION;
|
||||
}
|
||||
};
|
||||
|
||||
#if defined(__SUNPRO_CC)
|
||||
// see #4199, the Sun Studio compiler gets confused about static initialization
|
||||
// constructor arguments. But an assignment works just fine.
|
||||
template<class T> sp_typeinfo sp_typeid_< T >::ti_ = sp_typeid_< T >::name();
|
||||
#else
|
||||
template<class T> sp_typeinfo sp_typeid_< T >::ti_(sp_typeid_< T >::name());
|
||||
#endif
|
||||
|
||||
template<class T> struct sp_typeid_< T & >: sp_typeid_< T >
|
||||
{
|
||||
};
|
||||
|
||||
template<class T> struct sp_typeid_< T const >: sp_typeid_< T >
|
||||
{
|
||||
};
|
||||
|
||||
template<class T> struct sp_typeid_< T volatile >: sp_typeid_< T >
|
||||
{
|
||||
};
|
||||
|
||||
template<class T> struct sp_typeid_< T const volatile >: sp_typeid_< T >
|
||||
{
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#define BOOST_SP_TYPEID(T) (boost::detail::sp_typeid_<T>::ti_)
|
||||
|
||||
#else
|
||||
|
||||
#include <typeinfo>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
#if defined( BOOST_NO_STD_TYPEINFO )
|
||||
|
||||
typedef ::type_info sp_typeinfo;
|
||||
|
||||
#else
|
||||
|
||||
typedef std::type_info sp_typeinfo;
|
||||
|
||||
#endif
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#define BOOST_SP_TYPEID(T) typeid(T)
|
||||
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SP_TYPEINFO_HPP_INCLUDED
|
||||
@@ -6,13 +6,62 @@
|
||||
//
|
||||
// Copyright (c) 2002 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// http://www.boost.org/libs/smart_ptr/enable_shared_from_this.html
|
||||
//
|
||||
|
||||
#include <boost/smart_ptr/enable_shared_from_this.hpp>
|
||||
#include <boost/weak_ptr.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/config.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
template<class T> class enable_shared_from_this
|
||||
{
|
||||
protected:
|
||||
|
||||
enable_shared_from_this()
|
||||
{
|
||||
}
|
||||
|
||||
enable_shared_from_this(enable_shared_from_this const &)
|
||||
{
|
||||
}
|
||||
|
||||
enable_shared_from_this & operator=(enable_shared_from_this const &)
|
||||
{
|
||||
return *this;
|
||||
}
|
||||
|
||||
~enable_shared_from_this()
|
||||
{
|
||||
}
|
||||
|
||||
public:
|
||||
|
||||
shared_ptr<T> shared_from_this()
|
||||
{
|
||||
shared_ptr<T> p(_internal_weak_this);
|
||||
BOOST_ASSERT(p.get() == this);
|
||||
return p;
|
||||
}
|
||||
|
||||
shared_ptr<T const> shared_from_this() const
|
||||
{
|
||||
shared_ptr<T const> p(_internal_weak_this);
|
||||
BOOST_ASSERT(p.get() == this);
|
||||
return p;
|
||||
}
|
||||
|
||||
typedef T _internal_element_type; // for bcc 5.5.1
|
||||
mutable weak_ptr<_internal_element_type> _internal_weak_this;
|
||||
};
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_ENABLE_SHARED_FROM_THIS_HPP_INCLUDED
|
||||
|
||||
@@ -3,15 +3,9 @@
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
#ifndef GET_POINTER_DWA20021219_HPP
|
||||
#define GET_POINTER_DWA20021219_HPP
|
||||
# define GET_POINTER_DWA20021219_HPP
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
// In order to avoid circular dependencies with Boost.TR1
|
||||
// we make sure that our include of <memory> doesn't try to
|
||||
// pull in the TR1 headers: that's why we use this header
|
||||
// rather than including <memory> directly:
|
||||
#include <boost/config/no_tr1/memory.hpp> // std::auto_ptr
|
||||
# include <memory>
|
||||
|
||||
namespace boost {
|
||||
|
||||
@@ -29,19 +23,6 @@ template<class T> T * get_pointer(std::auto_ptr<T> const& p)
|
||||
return p.get();
|
||||
}
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_SMART_PTR )
|
||||
|
||||
template<class T> T * get_pointer( std::unique_ptr<T> const& p )
|
||||
{
|
||||
return p.get();
|
||||
}
|
||||
|
||||
template<class T> T * get_pointer( std::shared_ptr<T> const& p )
|
||||
{
|
||||
return p.get();
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
} // namespace boost
|
||||
|
||||
|
||||
@@ -6,13 +6,267 @@
|
||||
//
|
||||
// Copyright (c) 2001, 2002 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// See http://www.boost.org/libs/smart_ptr/intrusive_ptr.html for documentation.
|
||||
//
|
||||
|
||||
#include <boost/smart_ptr/intrusive_ptr.hpp>
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#ifdef BOOST_MSVC // moved here to work around VC++ compiler crash
|
||||
# pragma warning(push)
|
||||
# pragma warning(disable:4284) // odd return type for operator->
|
||||
#endif
|
||||
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
|
||||
#include <functional> // for std::less
|
||||
#include <iosfwd> // for std::basic_ostream
|
||||
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
//
|
||||
// intrusive_ptr
|
||||
//
|
||||
// A smart pointer that uses intrusive reference counting.
|
||||
//
|
||||
// Relies on unqualified calls to
|
||||
//
|
||||
// void intrusive_ptr_add_ref(T * p);
|
||||
// void intrusive_ptr_release(T * p);
|
||||
//
|
||||
// (p != 0)
|
||||
//
|
||||
// The object is responsible for destroying itself.
|
||||
//
|
||||
|
||||
template<class T> class intrusive_ptr
|
||||
{
|
||||
private:
|
||||
|
||||
typedef intrusive_ptr this_type;
|
||||
|
||||
public:
|
||||
|
||||
typedef T element_type;
|
||||
|
||||
intrusive_ptr(): p_(0)
|
||||
{
|
||||
}
|
||||
|
||||
intrusive_ptr(T * p, bool add_ref = true): p_(p)
|
||||
{
|
||||
if(p_ != 0 && add_ref) intrusive_ptr_add_ref(p_);
|
||||
}
|
||||
|
||||
#if !defined(BOOST_NO_MEMBER_TEMPLATES) || defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
||||
|
||||
template<class U> intrusive_ptr(intrusive_ptr<U> const & rhs): p_(rhs.get())
|
||||
{
|
||||
if(p_ != 0) intrusive_ptr_add_ref(p_);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
intrusive_ptr(intrusive_ptr const & rhs): p_(rhs.p_)
|
||||
{
|
||||
if(p_ != 0) intrusive_ptr_add_ref(p_);
|
||||
}
|
||||
|
||||
~intrusive_ptr()
|
||||
{
|
||||
if(p_ != 0) intrusive_ptr_release(p_);
|
||||
}
|
||||
|
||||
#if !defined(BOOST_NO_MEMBER_TEMPLATES) || defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
||||
|
||||
template<class U> intrusive_ptr & operator=(intrusive_ptr<U> const & rhs)
|
||||
{
|
||||
this_type(rhs).swap(*this);
|
||||
return *this;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
intrusive_ptr & operator=(intrusive_ptr const & rhs)
|
||||
{
|
||||
this_type(rhs).swap(*this);
|
||||
return *this;
|
||||
}
|
||||
|
||||
intrusive_ptr & operator=(T * rhs)
|
||||
{
|
||||
this_type(rhs).swap(*this);
|
||||
return *this;
|
||||
}
|
||||
|
||||
T * get() const
|
||||
{
|
||||
return p_;
|
||||
}
|
||||
|
||||
T & operator*() const
|
||||
{
|
||||
return *p_;
|
||||
}
|
||||
|
||||
T * operator->() const
|
||||
{
|
||||
return p_;
|
||||
}
|
||||
|
||||
#if defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x530)
|
||||
|
||||
operator bool () const
|
||||
{
|
||||
return p_ != 0;
|
||||
}
|
||||
|
||||
#elif defined(__MWERKS__) && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003))
|
||||
typedef T * (this_type::*unspecified_bool_type)() const;
|
||||
|
||||
operator unspecified_bool_type() const // never throws
|
||||
{
|
||||
return p_ == 0? 0: &this_type::get;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
typedef T * this_type::*unspecified_bool_type;
|
||||
|
||||
operator unspecified_bool_type () const
|
||||
{
|
||||
return p_ == 0? 0: &this_type::p_;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
// operator! is a Borland-specific workaround
|
||||
bool operator! () const
|
||||
{
|
||||
return p_ == 0;
|
||||
}
|
||||
|
||||
void swap(intrusive_ptr & rhs)
|
||||
{
|
||||
T * tmp = p_;
|
||||
p_ = rhs.p_;
|
||||
rhs.p_ = tmp;
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
T * p_;
|
||||
};
|
||||
|
||||
template<class T, class U> inline bool operator==(intrusive_ptr<T> const & a, intrusive_ptr<U> const & b)
|
||||
{
|
||||
return a.get() == b.get();
|
||||
}
|
||||
|
||||
template<class T, class U> inline bool operator!=(intrusive_ptr<T> const & a, intrusive_ptr<U> const & b)
|
||||
{
|
||||
return a.get() != b.get();
|
||||
}
|
||||
|
||||
template<class T> inline bool operator==(intrusive_ptr<T> const & a, T * b)
|
||||
{
|
||||
return a.get() == b;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=(intrusive_ptr<T> const & a, T * b)
|
||||
{
|
||||
return a.get() != b;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator==(T * a, intrusive_ptr<T> const & b)
|
||||
{
|
||||
return a == b.get();
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=(T * a, intrusive_ptr<T> const & b)
|
||||
{
|
||||
return a != b.get();
|
||||
}
|
||||
|
||||
#if __GNUC__ == 2 && __GNUC_MINOR__ <= 96
|
||||
|
||||
// Resolve the ambiguity between our op!= and the one in rel_ops
|
||||
|
||||
template<class T> inline bool operator!=(intrusive_ptr<T> const & a, intrusive_ptr<T> const & b)
|
||||
{
|
||||
return a.get() != b.get();
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
template<class T> inline bool operator<(intrusive_ptr<T> const & a, intrusive_ptr<T> const & b)
|
||||
{
|
||||
return std::less<T *>()(a.get(), b.get());
|
||||
}
|
||||
|
||||
template<class T> void swap(intrusive_ptr<T> & lhs, intrusive_ptr<T> & rhs)
|
||||
{
|
||||
lhs.swap(rhs);
|
||||
}
|
||||
|
||||
// mem_fn support
|
||||
|
||||
template<class T> T * get_pointer(intrusive_ptr<T> const & p)
|
||||
{
|
||||
return p.get();
|
||||
}
|
||||
|
||||
template<class T, class U> intrusive_ptr<T> static_pointer_cast(intrusive_ptr<U> const & p)
|
||||
{
|
||||
return static_cast<T *>(p.get());
|
||||
}
|
||||
|
||||
template<class T, class U> intrusive_ptr<T> const_pointer_cast(intrusive_ptr<U> const & p)
|
||||
{
|
||||
return const_cast<T *>(p.get());
|
||||
}
|
||||
|
||||
template<class T, class U> intrusive_ptr<T> dynamic_pointer_cast(intrusive_ptr<U> const & p)
|
||||
{
|
||||
return dynamic_cast<T *>(p.get());
|
||||
}
|
||||
|
||||
// operator<<
|
||||
|
||||
#if defined(__GNUC__) && (__GNUC__ < 3)
|
||||
|
||||
template<class Y> std::ostream & operator<< (std::ostream & os, intrusive_ptr<Y> const & p)
|
||||
{
|
||||
os << p.get();
|
||||
return os;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
# if defined(BOOST_MSVC) && BOOST_WORKAROUND(BOOST_MSVC, <= 1200 && __SGI_STL_PORT)
|
||||
// MSVC6 has problems finding std::basic_ostream through the using declaration in namespace _STL
|
||||
using std::basic_ostream;
|
||||
template<class E, class T, class Y> basic_ostream<E, T> & operator<< (basic_ostream<E, T> & os, intrusive_ptr<Y> const & p)
|
||||
# else
|
||||
template<class E, class T, class Y> std::basic_ostream<E, T> & operator<< (std::basic_ostream<E, T> & os, intrusive_ptr<Y> const & p)
|
||||
# endif
|
||||
{
|
||||
os << p.get();
|
||||
return os;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#ifdef BOOST_MSVC
|
||||
# pragma warning(pop)
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_INTRUSIVE_PTR_HPP_INCLUDED
|
||||
|
||||
@@ -1,17 +0,0 @@
|
||||
#ifndef BOOST_MAKE_SHARED_HPP_INCLUDED
|
||||
#define BOOST_MAKE_SHARED_HPP_INCLUDED
|
||||
|
||||
// make_shared.hpp
|
||||
//
|
||||
// Copyright (c) 2007, 2008 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
//
|
||||
// See http://www.boost.org/libs/smart_ptr/make_shared.html
|
||||
// for documentation.
|
||||
|
||||
#include <boost/smart_ptr/make_shared.hpp>
|
||||
|
||||
#endif // #ifndef BOOST_MAKE_SHARED_HPP_INCLUDED
|
||||
@@ -1,53 +0,0 @@
|
||||
#ifndef BOOST_MEMORY_ORDER_HPP_INCLUDED
|
||||
#define BOOST_MEMORY_ORDER_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
// boost/memory_order.hpp
|
||||
//
|
||||
// Defines enum boost::memory_order per the C++0x working draft
|
||||
//
|
||||
// Copyright (c) 2008, 2009 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
//
|
||||
// Enum values are chosen so that code that needs to insert
|
||||
// a trailing fence for acquire semantics can use a single
|
||||
// test such as:
|
||||
//
|
||||
// if( mo & memory_order_acquire ) { ...fence... }
|
||||
//
|
||||
// For leading fences one can use:
|
||||
//
|
||||
// if( mo & memory_order_release ) { ...fence... }
|
||||
//
|
||||
// Architectures such as Alpha that need a fence on consume
|
||||
// can use:
|
||||
//
|
||||
// if( mo & ( memory_order_acquire | memory_order_consume ) ) { ...fence... }
|
||||
//
|
||||
|
||||
enum memory_order
|
||||
{
|
||||
memory_order_relaxed = 0,
|
||||
memory_order_acquire = 1,
|
||||
memory_order_release = 2,
|
||||
memory_order_acq_rel = 3, // acquire | release
|
||||
memory_order_seq_cst = 7, // acq_rel | 4
|
||||
memory_order_consume = 8
|
||||
};
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_MEMORY_ORDER_HPP_INCLUDED
|
||||
@@ -1,45 +0,0 @@
|
||||
//////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// (C) Copyright Ion Gaztanaga 2005.
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// (See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
//////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
#ifndef BOOST_POINTER_CAST_HPP
|
||||
#define BOOST_POINTER_CAST_HPP
|
||||
|
||||
namespace boost {
|
||||
|
||||
//static_pointer_cast overload for raw pointers
|
||||
template<class T, class U>
|
||||
inline T* static_pointer_cast(U *ptr)
|
||||
{
|
||||
return static_cast<T*>(ptr);
|
||||
}
|
||||
|
||||
//dynamic_pointer_cast overload for raw pointers
|
||||
template<class T, class U>
|
||||
inline T* dynamic_pointer_cast(U *ptr)
|
||||
{
|
||||
return dynamic_cast<T*>(ptr);
|
||||
}
|
||||
|
||||
//const_pointer_cast overload for raw pointers
|
||||
template<class T, class U>
|
||||
inline T* const_pointer_cast(U *ptr)
|
||||
{
|
||||
return const_cast<T*>(ptr);
|
||||
}
|
||||
|
||||
//reinterpret_pointer_cast overload for raw pointers
|
||||
template<class T, class U>
|
||||
inline T* reinterpret_pointer_cast(U *ptr)
|
||||
{
|
||||
return reinterpret_cast<T*>(ptr);
|
||||
}
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif //BOOST_POINTER_CAST_HPP
|
||||
@@ -1,55 +0,0 @@
|
||||
#ifndef BOOST_POINTER_TO_OTHER_HPP_INCLUDED
|
||||
#define BOOST_POINTER_TO_OTHER_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// pointer_to_other.hpp
|
||||
//
|
||||
// (C) Copyright Ion Gaztanaga 2005.
|
||||
// Copyright (c) 2005 Peter Dimov.
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
//
|
||||
// (See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// See http://www.boost.org/libs/smart_ptr/pointer_to_other.html
|
||||
//
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
// Defines the same pointer type (raw or smart) to another pointee type
|
||||
|
||||
template<class T, class U>
|
||||
struct pointer_to_other;
|
||||
|
||||
template<class T, class U,
|
||||
template<class> class Sp>
|
||||
struct pointer_to_other< Sp<T>, U >
|
||||
{
|
||||
typedef Sp<U> type;
|
||||
};
|
||||
|
||||
template<class T, class T2, class U,
|
||||
template<class, class> class Sp>
|
||||
struct pointer_to_other< Sp<T, T2>, U >
|
||||
{
|
||||
typedef Sp<U, T2> type;
|
||||
};
|
||||
|
||||
template<class T, class T2, class T3, class U,
|
||||
template<class, class, class> class Sp>
|
||||
struct pointer_to_other< Sp<T, T2, T3>, U >
|
||||
{
|
||||
typedef Sp<U, T2, T3> type;
|
||||
};
|
||||
|
||||
template<class T, class U>
|
||||
struct pointer_to_other< T*, U >
|
||||
{
|
||||
typedef U* type;
|
||||
};
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_POINTER_TO_OTHER_HPP_INCLUDED
|
||||
@@ -11,6 +11,125 @@
|
||||
// http://www.boost.org/libs/smart_ptr/scoped_array.htm
|
||||
//
|
||||
|
||||
#include <boost/smart_ptr/scoped_array.hpp>
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/checked_delete.hpp>
|
||||
#include <boost/config.hpp> // in case ptrdiff_t not in std
|
||||
|
||||
#include <boost/detail/workaround.hpp>
|
||||
|
||||
#include <cstddef> // for std::ptrdiff_t
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
// Debug hooks
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
|
||||
void sp_array_constructor_hook(void * p);
|
||||
void sp_array_destructor_hook(void * p);
|
||||
|
||||
#endif
|
||||
|
||||
// scoped_array extends scoped_ptr to arrays. Deletion of the array pointed to
|
||||
// is guaranteed, either on destruction of the scoped_array or via an explicit
|
||||
// reset(). Use shared_array or std::vector if your needs are more complex.
|
||||
|
||||
template<class T> class scoped_array // noncopyable
|
||||
{
|
||||
private:
|
||||
|
||||
T * ptr;
|
||||
|
||||
scoped_array(scoped_array const &);
|
||||
scoped_array & operator=(scoped_array const &);
|
||||
|
||||
typedef scoped_array<T> this_type;
|
||||
|
||||
public:
|
||||
|
||||
typedef T element_type;
|
||||
|
||||
explicit scoped_array(T * p = 0) : ptr(p) // never throws
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
boost::sp_array_constructor_hook(ptr);
|
||||
#endif
|
||||
}
|
||||
|
||||
~scoped_array() // never throws
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
boost::sp_array_destructor_hook(ptr);
|
||||
#endif
|
||||
boost::checked_array_delete(ptr);
|
||||
}
|
||||
|
||||
void reset(T * p = 0) // never throws
|
||||
{
|
||||
BOOST_ASSERT(p == 0 || p != ptr); // catch self-reset errors
|
||||
this_type(p).swap(*this);
|
||||
}
|
||||
|
||||
T & operator[](std::ptrdiff_t i) const // never throws
|
||||
{
|
||||
BOOST_ASSERT(ptr != 0);
|
||||
BOOST_ASSERT(i >= 0);
|
||||
return ptr[i];
|
||||
}
|
||||
|
||||
T * get() const // never throws
|
||||
{
|
||||
return ptr;
|
||||
}
|
||||
|
||||
// implicit conversion to "bool"
|
||||
|
||||
#if defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x530)
|
||||
|
||||
operator bool () const
|
||||
{
|
||||
return ptr != 0;
|
||||
}
|
||||
|
||||
#elif defined(__MWERKS__) && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003))
|
||||
typedef T * (this_type::*unspecified_bool_type)() const;
|
||||
|
||||
operator unspecified_bool_type() const // never throws
|
||||
{
|
||||
return ptr == 0? 0: &this_type::get;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
typedef T * this_type::*unspecified_bool_type;
|
||||
|
||||
operator unspecified_bool_type() const // never throws
|
||||
{
|
||||
return ptr == 0? 0: &this_type::ptr;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
bool operator! () const // never throws
|
||||
{
|
||||
return ptr == 0;
|
||||
}
|
||||
|
||||
void swap(scoped_array & b) // never throws
|
||||
{
|
||||
T * tmp = b.ptr;
|
||||
b.ptr = ptr;
|
||||
ptr = tmp;
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
template<class T> inline void swap(scoped_array<T> & a, scoped_array<T> & b) // never throws
|
||||
{
|
||||
a.swap(b);
|
||||
}
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SCOPED_ARRAY_HPP_INCLUDED
|
||||
|
||||
@@ -11,6 +11,147 @@
|
||||
// http://www.boost.org/libs/smart_ptr/scoped_ptr.htm
|
||||
//
|
||||
|
||||
#include <boost/smart_ptr/scoped_ptr.hpp>
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/checked_delete.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
|
||||
#ifndef BOOST_NO_AUTO_PTR
|
||||
# include <memory> // for std::auto_ptr
|
||||
#endif
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
// Debug hooks
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
|
||||
void sp_scalar_constructor_hook(void * p);
|
||||
void sp_scalar_destructor_hook(void * p);
|
||||
|
||||
#endif
|
||||
|
||||
// scoped_ptr mimics a built-in pointer except that it guarantees deletion
|
||||
// of the object pointed to, either on destruction of the scoped_ptr or via
|
||||
// an explicit reset(). scoped_ptr is a simple solution for simple needs;
|
||||
// use shared_ptr or std::auto_ptr if your needs are more complex.
|
||||
|
||||
template<class T> class scoped_ptr // noncopyable
|
||||
{
|
||||
private:
|
||||
|
||||
T * ptr;
|
||||
|
||||
scoped_ptr(scoped_ptr const &);
|
||||
scoped_ptr & operator=(scoped_ptr const &);
|
||||
|
||||
typedef scoped_ptr<T> this_type;
|
||||
|
||||
public:
|
||||
|
||||
typedef T element_type;
|
||||
|
||||
explicit scoped_ptr(T * p = 0): ptr(p) // never throws
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
boost::sp_scalar_constructor_hook(ptr);
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifndef BOOST_NO_AUTO_PTR
|
||||
|
||||
explicit scoped_ptr(std::auto_ptr<T> p): ptr(p.release()) // never throws
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
boost::sp_scalar_constructor_hook(ptr);
|
||||
#endif
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
~scoped_ptr() // never throws
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
boost::sp_scalar_destructor_hook(ptr);
|
||||
#endif
|
||||
boost::checked_delete(ptr);
|
||||
}
|
||||
|
||||
void reset(T * p = 0) // never throws
|
||||
{
|
||||
BOOST_ASSERT(p == 0 || p != ptr); // catch self-reset errors
|
||||
this_type(p).swap(*this);
|
||||
}
|
||||
|
||||
T & operator*() const // never throws
|
||||
{
|
||||
BOOST_ASSERT(ptr != 0);
|
||||
return *ptr;
|
||||
}
|
||||
|
||||
T * operator->() const // never throws
|
||||
{
|
||||
BOOST_ASSERT(ptr != 0);
|
||||
return ptr;
|
||||
}
|
||||
|
||||
T * get() const // never throws
|
||||
{
|
||||
return ptr;
|
||||
}
|
||||
|
||||
// implicit conversion to "bool"
|
||||
|
||||
#if defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x530)
|
||||
|
||||
operator bool () const
|
||||
{
|
||||
return ptr != 0;
|
||||
}
|
||||
|
||||
#elif defined(__MWERKS__) && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003))
|
||||
typedef T * (this_type::*unspecified_bool_type)() const;
|
||||
|
||||
operator unspecified_bool_type() const // never throws
|
||||
{
|
||||
return ptr == 0? 0: &this_type::get;
|
||||
}
|
||||
|
||||
#else
|
||||
typedef T * this_type::*unspecified_bool_type;
|
||||
|
||||
operator unspecified_bool_type() const // never throws
|
||||
{
|
||||
return ptr == 0? 0: &this_type::ptr;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
bool operator! () const // never throws
|
||||
{
|
||||
return ptr == 0;
|
||||
}
|
||||
|
||||
void swap(scoped_ptr & b) // never throws
|
||||
{
|
||||
T * tmp = b.ptr;
|
||||
b.ptr = ptr;
|
||||
ptr = tmp;
|
||||
}
|
||||
};
|
||||
|
||||
template<class T> inline void swap(scoped_ptr<T> & a, scoped_ptr<T> & b) // never throws
|
||||
{
|
||||
a.swap(b);
|
||||
}
|
||||
|
||||
// get_pointer(p) is a generic way to say p.get()
|
||||
|
||||
template<class T> inline T * get_pointer(scoped_ptr<T> const & p)
|
||||
{
|
||||
return p.get();
|
||||
}
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SCOPED_PTR_HPP_INCLUDED
|
||||
|
||||
@@ -14,6 +14,162 @@
|
||||
// See http://www.boost.org/libs/smart_ptr/shared_array.htm for documentation.
|
||||
//
|
||||
|
||||
#include <boost/smart_ptr/shared_array.hpp>
|
||||
#include <boost/config.hpp> // for broken compiler workarounds
|
||||
|
||||
#if defined(BOOST_NO_MEMBER_TEMPLATES) && !defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
||||
#include <boost/detail/shared_array_nmt.hpp>
|
||||
#else
|
||||
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/checked_delete.hpp>
|
||||
|
||||
#include <boost/detail/shared_count.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
|
||||
#include <cstddef> // for std::ptrdiff_t
|
||||
#include <algorithm> // for std::swap
|
||||
#include <functional> // for std::less
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
//
|
||||
// shared_array
|
||||
//
|
||||
// shared_array extends shared_ptr to arrays.
|
||||
// The array pointed to is deleted when the last shared_array pointing to it
|
||||
// is destroyed or reset.
|
||||
//
|
||||
|
||||
template<class T> class shared_array
|
||||
{
|
||||
private:
|
||||
|
||||
// Borland 5.5.1 specific workarounds
|
||||
typedef checked_array_deleter<T> deleter;
|
||||
typedef shared_array<T> this_type;
|
||||
|
||||
public:
|
||||
|
||||
typedef T element_type;
|
||||
|
||||
explicit shared_array(T * p = 0): px(p), pn(p, deleter())
|
||||
{
|
||||
}
|
||||
|
||||
//
|
||||
// Requirements: D's copy constructor must not throw
|
||||
//
|
||||
// shared_array will release p by calling d(p)
|
||||
//
|
||||
|
||||
template<class D> shared_array(T * p, D d): px(p), pn(p, d)
|
||||
{
|
||||
}
|
||||
|
||||
// generated copy constructor, assignment, destructor are fine
|
||||
|
||||
void reset(T * p = 0)
|
||||
{
|
||||
BOOST_ASSERT(p == 0 || p != px);
|
||||
this_type(p).swap(*this);
|
||||
}
|
||||
|
||||
template <class D> void reset(T * p, D d)
|
||||
{
|
||||
this_type(p, d).swap(*this);
|
||||
}
|
||||
|
||||
T & operator[] (std::ptrdiff_t i) const // never throws
|
||||
{
|
||||
BOOST_ASSERT(px != 0);
|
||||
BOOST_ASSERT(i >= 0);
|
||||
return px[i];
|
||||
}
|
||||
|
||||
T * get() const // never throws
|
||||
{
|
||||
return px;
|
||||
}
|
||||
|
||||
// implicit conversion to "bool"
|
||||
|
||||
#if defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x530)
|
||||
|
||||
operator bool () const
|
||||
{
|
||||
return px != 0;
|
||||
}
|
||||
|
||||
#elif defined(__MWERKS__) && BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3003))
|
||||
typedef T * (this_type::*unspecified_bool_type)() const;
|
||||
|
||||
operator unspecified_bool_type() const // never throws
|
||||
{
|
||||
return px == 0? 0: &this_type::get;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
typedef T * this_type::*unspecified_bool_type;
|
||||
|
||||
operator unspecified_bool_type() const // never throws
|
||||
{
|
||||
return px == 0? 0: &this_type::px;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
bool operator! () const // never throws
|
||||
{
|
||||
return px == 0;
|
||||
}
|
||||
|
||||
bool unique() const // never throws
|
||||
{
|
||||
return pn.unique();
|
||||
}
|
||||
|
||||
long use_count() const // never throws
|
||||
{
|
||||
return pn.use_count();
|
||||
}
|
||||
|
||||
void swap(shared_array<T> & other) // never throws
|
||||
{
|
||||
std::swap(px, other.px);
|
||||
pn.swap(other.pn);
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
T * px; // contained pointer
|
||||
detail::shared_count pn; // reference counter
|
||||
|
||||
}; // shared_array
|
||||
|
||||
template<class T> inline bool operator==(shared_array<T> const & a, shared_array<T> const & b) // never throws
|
||||
{
|
||||
return a.get() == b.get();
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=(shared_array<T> const & a, shared_array<T> const & b) // never throws
|
||||
{
|
||||
return a.get() != b.get();
|
||||
}
|
||||
|
||||
template<class T> inline bool operator<(shared_array<T> const & a, shared_array<T> const & b) // never throws
|
||||
{
|
||||
return std::less<T*>()(a.get(), b.get());
|
||||
}
|
||||
|
||||
template<class T> void swap(shared_array<T> & a, shared_array<T> & b) // never throws
|
||||
{
|
||||
a.swap(b);
|
||||
}
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #if defined(BOOST_NO_MEMBER_TEMPLATES) && !defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
||||
|
||||
#endif // #ifndef BOOST_SHARED_ARRAY_HPP_INCLUDED
|
||||
|
||||
@@ -5,7 +5,7 @@
|
||||
// shared_ptr.hpp
|
||||
//
|
||||
// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
|
||||
// Copyright (c) 2001-2008 Peter Dimov
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
@@ -14,6 +14,465 @@
|
||||
// See http://www.boost.org/libs/smart_ptr/shared_ptr.htm for documentation.
|
||||
//
|
||||
|
||||
#include <boost/smart_ptr/shared_ptr.hpp>
|
||||
#include <boost/config.hpp> // for broken compiler workarounds
|
||||
|
||||
#if defined(BOOST_NO_MEMBER_TEMPLATES) && !defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
||||
#include <boost/detail/shared_ptr_nmt.hpp>
|
||||
#else
|
||||
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/checked_delete.hpp>
|
||||
#include <boost/throw_exception.hpp>
|
||||
#include <boost/detail/shared_count.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
|
||||
#include <memory> // for std::auto_ptr
|
||||
#include <algorithm> // for std::swap
|
||||
#include <functional> // for std::less
|
||||
#include <typeinfo> // for std::bad_cast
|
||||
#include <iosfwd> // for std::basic_ostream
|
||||
|
||||
#ifdef BOOST_MSVC // moved here to work around VC++ compiler crash
|
||||
# pragma warning(push)
|
||||
# pragma warning(disable:4284) // odd return type for operator->
|
||||
#endif
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
template<class T> class weak_ptr;
|
||||
template<class T> class enable_shared_from_this;
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
struct static_cast_tag {};
|
||||
struct const_cast_tag {};
|
||||
struct dynamic_cast_tag {};
|
||||
struct polymorphic_cast_tag {};
|
||||
|
||||
template<class T> struct shared_ptr_traits
|
||||
{
|
||||
typedef T & reference;
|
||||
};
|
||||
|
||||
template<> struct shared_ptr_traits<void>
|
||||
{
|
||||
typedef void reference;
|
||||
};
|
||||
|
||||
#if !defined(BOOST_NO_CV_VOID_SPECIALIZATIONS)
|
||||
|
||||
template<> struct shared_ptr_traits<void const>
|
||||
{
|
||||
typedef void reference;
|
||||
};
|
||||
|
||||
template<> struct shared_ptr_traits<void volatile>
|
||||
{
|
||||
typedef void reference;
|
||||
};
|
||||
|
||||
template<> struct shared_ptr_traits<void const volatile>
|
||||
{
|
||||
typedef void reference;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
// enable_shared_from_this support
|
||||
|
||||
template<class T, class Y> void sp_enable_shared_from_this( shared_count const & pn, boost::enable_shared_from_this<T> const * pe, Y const * px )
|
||||
{
|
||||
if(pe != 0) pe->_internal_weak_this._internal_assign(const_cast<Y*>(px), pn);
|
||||
}
|
||||
|
||||
inline void sp_enable_shared_from_this( shared_count const & /*pn*/, ... )
|
||||
{
|
||||
}
|
||||
|
||||
} // namespace detail
|
||||
|
||||
|
||||
//
|
||||
// shared_ptr
|
||||
//
|
||||
// An enhanced relative of scoped_ptr with reference counted copy semantics.
|
||||
// The object pointed to is deleted when the last shared_ptr pointing to it
|
||||
// is destroyed or reset.
|
||||
//
|
||||
|
||||
template<class T> class shared_ptr
|
||||
{
|
||||
private:
|
||||
|
||||
// Borland 5.5.1 specific workaround
|
||||
typedef shared_ptr<T> this_type;
|
||||
|
||||
public:
|
||||
|
||||
typedef T element_type;
|
||||
typedef T value_type;
|
||||
typedef T * pointer;
|
||||
typedef typename detail::shared_ptr_traits<T>::reference reference;
|
||||
|
||||
shared_ptr(): px(0), pn() // never throws in 1.30+
|
||||
{
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
explicit shared_ptr( Y * p ): px( p ), pn( p ) // Y must be complete
|
||||
{
|
||||
detail::sp_enable_shared_from_this( pn, p, p );
|
||||
}
|
||||
|
||||
//
|
||||
// Requirements: D's copy constructor must not throw
|
||||
//
|
||||
// shared_ptr will release p by calling d(p)
|
||||
//
|
||||
|
||||
template<class Y, class D> shared_ptr(Y * p, D d): px(p), pn(p, d)
|
||||
{
|
||||
detail::sp_enable_shared_from_this( pn, p, p );
|
||||
}
|
||||
|
||||
// generated copy constructor, assignment, destructor are fine...
|
||||
|
||||
// except that Borland C++ has a bug, and g++ with -Wsynth warns
|
||||
#if defined(__BORLANDC__) || defined(__GNUC__)
|
||||
|
||||
shared_ptr & operator=(shared_ptr const & r) // never throws
|
||||
{
|
||||
px = r.px;
|
||||
pn = r.pn; // shared_count::op= doesn't throw
|
||||
return *this;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
template<class Y>
|
||||
explicit shared_ptr(weak_ptr<Y> const & r): pn(r.pn) // may throw
|
||||
{
|
||||
// it is now safe to copy r.px, as pn(r.pn) did not throw
|
||||
px = r.px;
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
shared_ptr(shared_ptr<Y> const & r): px(r.px), pn(r.pn) // never throws
|
||||
{
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
shared_ptr(shared_ptr<Y> const & r, detail::static_cast_tag): px(static_cast<element_type *>(r.px)), pn(r.pn)
|
||||
{
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
shared_ptr(shared_ptr<Y> const & r, detail::const_cast_tag): px(const_cast<element_type *>(r.px)), pn(r.pn)
|
||||
{
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
shared_ptr(shared_ptr<Y> const & r, detail::dynamic_cast_tag): px(dynamic_cast<element_type *>(r.px)), pn(r.pn)
|
||||
{
|
||||
if(px == 0) // need to allocate new counter -- the cast failed
|
||||
{
|
||||
pn = detail::shared_count();
|
||||
}
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
shared_ptr(shared_ptr<Y> const & r, detail::polymorphic_cast_tag): px(dynamic_cast<element_type *>(r.px)), pn(r.pn)
|
||||
{
|
||||
if(px == 0)
|
||||
{
|
||||
boost::throw_exception(std::bad_cast());
|
||||
}
|
||||
}
|
||||
|
||||
#ifndef BOOST_NO_AUTO_PTR
|
||||
|
||||
template<class Y>
|
||||
explicit shared_ptr(std::auto_ptr<Y> & r): px(r.get()), pn()
|
||||
{
|
||||
Y * tmp = r.get();
|
||||
pn = detail::shared_count(r);
|
||||
detail::sp_enable_shared_from_this( pn, tmp, tmp );
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#if !defined(BOOST_MSVC) || (BOOST_MSVC > 1200)
|
||||
|
||||
template<class Y>
|
||||
shared_ptr & operator=(shared_ptr<Y> const & r) // never throws
|
||||
{
|
||||
px = r.px;
|
||||
pn = r.pn; // shared_count::op= doesn't throw
|
||||
return *this;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#ifndef BOOST_NO_AUTO_PTR
|
||||
|
||||
template<class Y>
|
||||
shared_ptr & operator=(std::auto_ptr<Y> & r)
|
||||
{
|
||||
this_type(r).swap(*this);
|
||||
return *this;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
void reset() // never throws in 1.30+
|
||||
{
|
||||
this_type().swap(*this);
|
||||
}
|
||||
|
||||
template<class Y> void reset(Y * p) // Y must be complete
|
||||
{
|
||||
BOOST_ASSERT(p == 0 || p != px); // catch self-reset errors
|
||||
this_type(p).swap(*this);
|
||||
}
|
||||
|
||||
template<class Y, class D> void reset(Y * p, D d)
|
||||
{
|
||||
this_type(p, d).swap(*this);
|
||||
}
|
||||
|
||||
reference operator* () const // never throws
|
||||
{
|
||||
BOOST_ASSERT(px != 0);
|
||||
return *px;
|
||||
}
|
||||
|
||||
T * operator-> () const // never throws
|
||||
{
|
||||
BOOST_ASSERT(px != 0);
|
||||
return px;
|
||||
}
|
||||
|
||||
T * get() const // never throws
|
||||
{
|
||||
return px;
|
||||
}
|
||||
|
||||
// implicit conversion to "bool"
|
||||
|
||||
#if defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x530)
|
||||
|
||||
operator bool () const
|
||||
{
|
||||
return px != 0;
|
||||
}
|
||||
|
||||
#elif \
|
||||
( defined(__MWERKS__) && BOOST_WORKAROUND(__MWERKS__, < 0x3200) ) || \
|
||||
( defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ < 304) )
|
||||
|
||||
typedef T * (this_type::*unspecified_bool_type)() const;
|
||||
|
||||
operator unspecified_bool_type() const // never throws
|
||||
{
|
||||
return px == 0? 0: &this_type::get;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
typedef T * this_type::*unspecified_bool_type;
|
||||
|
||||
operator unspecified_bool_type() const // never throws
|
||||
{
|
||||
return px == 0? 0: &this_type::px;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
// operator! is redundant, but some compilers need it
|
||||
|
||||
bool operator! () const // never throws
|
||||
{
|
||||
return px == 0;
|
||||
}
|
||||
|
||||
bool unique() const // never throws
|
||||
{
|
||||
return pn.unique();
|
||||
}
|
||||
|
||||
long use_count() const // never throws
|
||||
{
|
||||
return pn.use_count();
|
||||
}
|
||||
|
||||
void swap(shared_ptr<T> & other) // never throws
|
||||
{
|
||||
std::swap(px, other.px);
|
||||
pn.swap(other.pn);
|
||||
}
|
||||
|
||||
template<class Y> bool _internal_less(shared_ptr<Y> const & rhs) const
|
||||
{
|
||||
return pn < rhs.pn;
|
||||
}
|
||||
|
||||
void * _internal_get_deleter(std::type_info const & ti) const
|
||||
{
|
||||
return pn.get_deleter(ti);
|
||||
}
|
||||
|
||||
// Tasteless as this may seem, making all members public allows member templates
|
||||
// to work in the absence of member template friends. (Matthew Langston)
|
||||
|
||||
#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
|
||||
|
||||
private:
|
||||
|
||||
template<class Y> friend class shared_ptr;
|
||||
template<class Y> friend class weak_ptr;
|
||||
|
||||
|
||||
#endif
|
||||
|
||||
T * px; // contained pointer
|
||||
detail::shared_count pn; // reference counter
|
||||
|
||||
}; // shared_ptr
|
||||
|
||||
template<class T, class U> inline bool operator==(shared_ptr<T> const & a, shared_ptr<U> const & b)
|
||||
{
|
||||
return a.get() == b.get();
|
||||
}
|
||||
|
||||
template<class T, class U> inline bool operator!=(shared_ptr<T> const & a, shared_ptr<U> const & b)
|
||||
{
|
||||
return a.get() != b.get();
|
||||
}
|
||||
|
||||
#if __GNUC__ == 2 && __GNUC_MINOR__ <= 96
|
||||
|
||||
// Resolve the ambiguity between our op!= and the one in rel_ops
|
||||
|
||||
template<class T> inline bool operator!=(shared_ptr<T> const & a, shared_ptr<T> const & b)
|
||||
{
|
||||
return a.get() != b.get();
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
template<class T, class U> inline bool operator<(shared_ptr<T> const & a, shared_ptr<U> const & b)
|
||||
{
|
||||
return a._internal_less(b);
|
||||
}
|
||||
|
||||
template<class T> inline void swap(shared_ptr<T> & a, shared_ptr<T> & b)
|
||||
{
|
||||
a.swap(b);
|
||||
}
|
||||
|
||||
template<class T, class U> shared_ptr<T> static_pointer_cast(shared_ptr<U> const & r)
|
||||
{
|
||||
return shared_ptr<T>(r, detail::static_cast_tag());
|
||||
}
|
||||
|
||||
template<class T, class U> shared_ptr<T> const_pointer_cast(shared_ptr<U> const & r)
|
||||
{
|
||||
return shared_ptr<T>(r, detail::const_cast_tag());
|
||||
}
|
||||
|
||||
template<class T, class U> shared_ptr<T> dynamic_pointer_cast(shared_ptr<U> const & r)
|
||||
{
|
||||
return shared_ptr<T>(r, detail::dynamic_cast_tag());
|
||||
}
|
||||
|
||||
// shared_*_cast names are deprecated. Use *_pointer_cast instead.
|
||||
|
||||
template<class T, class U> shared_ptr<T> shared_static_cast(shared_ptr<U> const & r)
|
||||
{
|
||||
return shared_ptr<T>(r, detail::static_cast_tag());
|
||||
}
|
||||
|
||||
template<class T, class U> shared_ptr<T> shared_dynamic_cast(shared_ptr<U> const & r)
|
||||
{
|
||||
return shared_ptr<T>(r, detail::dynamic_cast_tag());
|
||||
}
|
||||
|
||||
template<class T, class U> shared_ptr<T> shared_polymorphic_cast(shared_ptr<U> const & r)
|
||||
{
|
||||
return shared_ptr<T>(r, detail::polymorphic_cast_tag());
|
||||
}
|
||||
|
||||
template<class T, class U> shared_ptr<T> shared_polymorphic_downcast(shared_ptr<U> const & r)
|
||||
{
|
||||
BOOST_ASSERT(dynamic_cast<T *>(r.get()) == r.get());
|
||||
return shared_static_cast<T>(r);
|
||||
}
|
||||
|
||||
// get_pointer() enables boost::mem_fn to recognize shared_ptr
|
||||
|
||||
template<class T> inline T * get_pointer(shared_ptr<T> const & p)
|
||||
{
|
||||
return p.get();
|
||||
}
|
||||
|
||||
// operator<<
|
||||
|
||||
#if defined(__GNUC__) && (__GNUC__ < 3)
|
||||
|
||||
template<class Y> std::ostream & operator<< (std::ostream & os, shared_ptr<Y> const & p)
|
||||
{
|
||||
os << p.get();
|
||||
return os;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
# if defined(BOOST_MSVC) && BOOST_WORKAROUND(BOOST_MSVC, <= 1200 && __SGI_STL_PORT)
|
||||
// MSVC6 has problems finding std::basic_ostream through the using declaration in namespace _STL
|
||||
using std::basic_ostream;
|
||||
template<class E, class T, class Y> basic_ostream<E, T> & operator<< (basic_ostream<E, T> & os, shared_ptr<Y> const & p)
|
||||
# else
|
||||
template<class E, class T, class Y> std::basic_ostream<E, T> & operator<< (std::basic_ostream<E, T> & os, shared_ptr<Y> const & p)
|
||||
# endif
|
||||
{
|
||||
os << p.get();
|
||||
return os;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
// get_deleter (experimental)
|
||||
|
||||
#if ( defined(__GNUC__) && BOOST_WORKAROUND(__GNUC__, < 3) ) || \
|
||||
( defined(__EDG_VERSION__) && BOOST_WORKAROUND(__EDG_VERSION__, <= 238) ) || \
|
||||
( defined(__HP_aCC) && BOOST_WORKAROUND(__HP_aCC, <= 33500) )
|
||||
|
||||
// g++ 2.9x doesn't allow static_cast<X const *>(void *)
|
||||
// apparently EDG 2.38 and HP aCC A.03.35 also don't accept it
|
||||
|
||||
template<class D, class T> D * get_deleter(shared_ptr<T> const & p)
|
||||
{
|
||||
void const * q = p._internal_get_deleter(typeid(D));
|
||||
return const_cast<D *>(static_cast<D const *>(q));
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
template<class D, class T> D * get_deleter(shared_ptr<T> const & p)
|
||||
{
|
||||
return static_cast<D *>(p._internal_get_deleter(typeid(D)));
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#ifdef BOOST_MSVC
|
||||
# pragma warning(pop)
|
||||
#endif
|
||||
|
||||
#endif // #if defined(BOOST_NO_MEMBER_TEMPLATES) && !defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
||||
|
||||
#endif // #ifndef BOOST_SHARED_PTR_HPP_INCLUDED
|
||||
|
||||
@@ -1,6 +1,3 @@
|
||||
#ifndef BOOST_SMART_PTR_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// smart_ptr.hpp
|
||||
//
|
||||
@@ -25,7 +22,4 @@
|
||||
# include <boost/weak_ptr.hpp>
|
||||
# include <boost/intrusive_ptr.hpp>
|
||||
# include <boost/enable_shared_from_this.hpp>
|
||||
# include <boost/make_shared.hpp>
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_HPP_INCLUDED
|
||||
|
||||
@@ -1,250 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2012 Glen Joseph Fernandes
|
||||
* glenfe at live dot com
|
||||
*
|
||||
* Distributed under the Boost Software License,
|
||||
* Version 1.0. (See accompanying file LICENSE_1_0.txt
|
||||
* or copy at http://boost.org/LICENSE_1_0.txt)
|
||||
*/
|
||||
#ifndef BOOST_SMART_PTR_ALLOCATE_SHARED_ARRAY_HPP
|
||||
#define BOOST_SMART_PTR_ALLOCATE_SHARED_ARRAY_HPP
|
||||
|
||||
#include <boost/smart_ptr/shared_ptr.hpp>
|
||||
#include <boost/smart_ptr/detail/allocate_array_helper.hpp>
|
||||
#include <boost/smart_ptr/detail/array_deleter.hpp>
|
||||
#include <boost/smart_ptr/detail/array_traits.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_if_array.hpp>
|
||||
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
|
||||
#include <initializer_list>
|
||||
#endif
|
||||
|
||||
namespace boost {
|
||||
template<typename T, typename A>
|
||||
inline typename boost::detail::sp_if_array<T>::type
|
||||
allocate_shared(const A& allocator, std::size_t size) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
std::size_t n1 = size * boost::detail::array_total<T1>::size;
|
||||
boost::detail::allocate_array_helper<A, T2[]> a1(allocator, n1, &p2);
|
||||
boost::detail::array_deleter<T2[]> d1(n1);
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init(p2);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
|
||||
template<typename T, typename A, typename... Args>
|
||||
inline typename boost::detail::sp_if_array<T>::type
|
||||
allocate_shared(const A& allocator, std::size_t size, Args&&... args) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
std::size_t n1 = size * boost::detail::array_total<T1>::size;
|
||||
boost::detail::allocate_array_helper<A, T2[]> a1(allocator, n1, &p2);
|
||||
boost::detail::array_deleter<T2[]> d1(n1);
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init(p2, boost::detail::sp_forward<Args>(args)...);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
template<typename T, typename A, typename... Args>
|
||||
inline typename boost::detail::sp_if_size_array<T>::type
|
||||
allocate_shared(const A& allocator, Args&&... args) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
enum {
|
||||
N = boost::detail::array_total<T>::size
|
||||
};
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
boost::detail::allocate_array_helper<A, T2[N]> a1(allocator, &p2);
|
||||
boost::detail::array_deleter<T2[N]> d1;
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[N]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init(p2, boost::detail::sp_forward<Args>(args)...);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
#endif
|
||||
#if !defined(BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX)
|
||||
template<typename T, typename A>
|
||||
inline typename boost::detail::sp_if_size_array<T>::type
|
||||
allocate_shared(const A& allocator, const T& list) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
typedef const T2 T3;
|
||||
enum {
|
||||
N = boost::detail::array_total<T>::size
|
||||
};
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
T3* p3 = 0;
|
||||
boost::detail::allocate_array_helper<A, T2[N]> a1(allocator, &p2);
|
||||
boost::detail::array_deleter<T2[N]> d1;
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[N]>* D2;
|
||||
p3 = reinterpret_cast<T3*>(list);
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init_list(p2, p3);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
template<typename T, typename A>
|
||||
inline typename boost::detail::sp_if_array<T>::type
|
||||
allocate_shared(const A& allocator, std::size_t size,
|
||||
const typename boost::detail::array_inner<T>::type& list) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
typedef const T2 T3;
|
||||
enum {
|
||||
M = boost::detail::array_total<T1>::size
|
||||
};
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
T3* p3 = 0;
|
||||
std::size_t n1 = M * size;
|
||||
boost::detail::allocate_array_helper<A, T2[]> a1(allocator, n1, &p2);
|
||||
boost::detail::array_deleter<T2[]> d1(n1);
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[]>* D2;
|
||||
p3 = reinterpret_cast<T3*>(list);
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->template init_list<M>(p2, p3);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
template<typename T, typename A>
|
||||
inline typename boost::detail::sp_if_size_array<T>::type
|
||||
allocate_shared(const A& allocator,
|
||||
const typename boost::detail::array_inner<T>::type& list) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
typedef const T2 T3;
|
||||
enum {
|
||||
M = boost::detail::array_total<T1>::size,
|
||||
N = boost::detail::array_total<T>::size
|
||||
};
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
T3* p3 = 0;
|
||||
boost::detail::allocate_array_helper<A, T2[N]> a1(allocator, &p2);
|
||||
boost::detail::array_deleter<T2[N]> d1;
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[N]>* D2;
|
||||
p3 = reinterpret_cast<T3*>(list);
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->template init_list<M>(p2, p3);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
|
||||
template<typename T, typename A>
|
||||
inline typename boost::detail::sp_if_array<T>::type
|
||||
allocate_shared(const A& allocator,
|
||||
std::initializer_list<typename boost::detail::array_inner<T>::type> list) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
typedef const T2 T3;
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
T3* p3 = 0;
|
||||
std::size_t n1 = list.size() * boost::detail::array_total<T1>::size;
|
||||
boost::detail::allocate_array_helper<A, T2[]> a1(allocator, n1, &p2);
|
||||
boost::detail::array_deleter<T2[]> d1(n1);
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[]>* D2;
|
||||
p3 = reinterpret_cast<T3*>(list.begin());
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init_list(p2, p3);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
#endif
|
||||
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
|
||||
template<typename T, typename A>
|
||||
inline typename boost::detail::sp_if_array<T>::type
|
||||
allocate_shared(const A& allocator, std::size_t size,
|
||||
typename boost::detail::array_base<T>::type&& value) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
std::size_t n1 = size * boost::detail::array_total<T1>::size;
|
||||
boost::detail::allocate_array_helper<A, T2[]> a1(allocator, n1, &p2);
|
||||
boost::detail::array_deleter<T2[]> d1(n1);
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init(p2, boost::detail::sp_forward<T2>(value));
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
template<typename T, typename A>
|
||||
inline typename boost::detail::sp_if_size_array<T>::type
|
||||
allocate_shared(const A& allocator,
|
||||
typename boost::detail::array_base<T>::type&& value) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
enum {
|
||||
N = boost::detail::array_total<T>::size
|
||||
};
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
boost::detail::allocate_array_helper<A, T2[N]> a1(allocator, &p2);
|
||||
boost::detail::array_deleter<T2[N]> d1;
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[N]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init(p2, boost::detail::sp_forward<T2>(value));
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
template<typename T, typename A>
|
||||
inline typename boost::detail::sp_if_array<T>::type
|
||||
allocate_shared_noinit(const A& allocator, std::size_t size) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
std::size_t n1 = size * boost::detail::array_total<T1>::size;
|
||||
boost::detail::allocate_array_helper<A, T2[]> a1(allocator, n1, &p2);
|
||||
boost::detail::array_deleter<T2[]> d1(n1);
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->noinit(p2);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
template<typename T, typename A>
|
||||
inline typename boost::detail::sp_if_size_array<T>::type
|
||||
allocate_shared_noinit(const A& allocator) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
enum {
|
||||
N = boost::detail::array_total<T>::size
|
||||
};
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
boost::detail::allocate_array_helper<A, T2[N]> a1(allocator, &p2);
|
||||
boost::detail::array_deleter<T2[N]> d1;
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[N]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->noinit(p2);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -1,169 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2012 Glen Joseph Fernandes
|
||||
* glenfe at live dot com
|
||||
*
|
||||
* Distributed under the Boost Software License,
|
||||
* Version 1.0. (See accompanying file LICENSE_1_0.txt
|
||||
* or copy at http://boost.org/LICENSE_1_0.txt)
|
||||
*/
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_ALLOCATE_ARRAY_HELPER_HPP
|
||||
#define BOOST_SMART_PTR_DETAIL_ALLOCATE_ARRAY_HELPER_HPP
|
||||
|
||||
#include <boost/type_traits/alignment_of.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace detail {
|
||||
template<typename A, typename T, typename Y = char>
|
||||
class allocate_array_helper;
|
||||
template<typename A, typename T, typename Y>
|
||||
class allocate_array_helper<A, T[], Y> {
|
||||
template<typename A9, typename T9, typename Y9>
|
||||
friend class allocate_array_helper;
|
||||
typedef typename A::template rebind<Y> ::other A2;
|
||||
typedef typename A::template rebind<char>::other A3;
|
||||
public:
|
||||
typedef typename A2::value_type value_type;
|
||||
typedef typename A2::pointer pointer;
|
||||
typedef typename A2::const_pointer const_pointer;
|
||||
typedef typename A2::reference reference;
|
||||
typedef typename A2::const_reference const_reference;
|
||||
typedef typename A2::size_type size_type;
|
||||
typedef typename A2::difference_type difference_type;
|
||||
template<typename U>
|
||||
struct rebind {
|
||||
typedef allocate_array_helper<A, T[], U> other;
|
||||
};
|
||||
allocate_array_helper(const A& allocator_, std::size_t size_, T** data_)
|
||||
: allocator(allocator_),
|
||||
size(sizeof(T) * size_),
|
||||
data(data_) {
|
||||
}
|
||||
template<class U>
|
||||
allocate_array_helper(const allocate_array_helper<A, T[], U>& other)
|
||||
: allocator(other.allocator),
|
||||
size(other.size),
|
||||
data(other.data) {
|
||||
}
|
||||
pointer address(reference value) const {
|
||||
return allocator.address(value);
|
||||
}
|
||||
const_pointer address(const_reference value) const {
|
||||
return allocator.address(value);
|
||||
}
|
||||
size_type max_size() const {
|
||||
return allocator.max_size();
|
||||
}
|
||||
pointer allocate(size_type count, const void* value = 0) {
|
||||
std::size_t a1 = boost::alignment_of<T>::value;
|
||||
std::size_t n1 = count * sizeof(Y) + a1 - 1;
|
||||
char* p1 = A3(allocator).allocate(n1 + size, value);
|
||||
char* p2 = p1 + n1;
|
||||
while (std::size_t(p2) % a1 != 0) {
|
||||
p2--;
|
||||
}
|
||||
*data = reinterpret_cast<T*>(p2);
|
||||
return reinterpret_cast<Y*>(p1);
|
||||
}
|
||||
void deallocate(pointer memory, size_type count) {
|
||||
std::size_t a1 = boost::alignment_of<T>::value;
|
||||
std::size_t n1 = count * sizeof(Y) + a1 - 1;
|
||||
char* p1 = reinterpret_cast<char*>(memory);
|
||||
A3(allocator).deallocate(p1, n1 + size);
|
||||
}
|
||||
void construct(pointer memory, const Y& value) {
|
||||
allocator.construct(memory, value);
|
||||
}
|
||||
void destroy(pointer memory) {
|
||||
allocator.destroy(memory);
|
||||
}
|
||||
template<typename U>
|
||||
bool operator==(const allocate_array_helper<A, T[], U>& other) const {
|
||||
return allocator == other.allocator;
|
||||
}
|
||||
template<typename U>
|
||||
bool operator!=(const allocate_array_helper<A, T[], U>& other) const {
|
||||
return !(*this == other);
|
||||
}
|
||||
private:
|
||||
A2 allocator;
|
||||
std::size_t size;
|
||||
T** data;
|
||||
};
|
||||
template<typename A, typename T, std::size_t N, typename Y>
|
||||
class allocate_array_helper<A, T[N], Y> {
|
||||
template<typename A9, typename T9, typename Y9>
|
||||
friend class allocate_array_helper;
|
||||
typedef typename A::template rebind<Y> ::other A2;
|
||||
typedef typename A::template rebind<char>::other A3;
|
||||
public:
|
||||
typedef typename A2::value_type value_type;
|
||||
typedef typename A2::pointer pointer;
|
||||
typedef typename A2::const_pointer const_pointer;
|
||||
typedef typename A2::reference reference;
|
||||
typedef typename A2::const_reference const_reference;
|
||||
typedef typename A2::size_type size_type;
|
||||
typedef typename A2::difference_type difference_type;
|
||||
template<typename U>
|
||||
struct rebind {
|
||||
typedef allocate_array_helper<A, T[N], U> other;
|
||||
};
|
||||
allocate_array_helper(const A& allocator_, T** data_)
|
||||
: allocator(allocator_),
|
||||
data(data_) {
|
||||
}
|
||||
template<class U>
|
||||
allocate_array_helper(const allocate_array_helper<A, T[N], U>& other)
|
||||
: allocator(other.allocator),
|
||||
data(other.data) {
|
||||
}
|
||||
pointer address(reference value) const {
|
||||
return allocator.address(value);
|
||||
}
|
||||
const_pointer address(const_reference value) const {
|
||||
return allocator.address(value);
|
||||
}
|
||||
size_type max_size() const {
|
||||
return allocator.max_size();
|
||||
}
|
||||
pointer allocate(size_type count, const void* value = 0) {
|
||||
std::size_t a1 = boost::alignment_of<T>::value;
|
||||
std::size_t n1 = count * sizeof(Y) + a1 - 1;
|
||||
char* p1 = A3(allocator).allocate(n1 + N1, value);
|
||||
char* p2 = p1 + n1;
|
||||
while (std::size_t(p2) % a1 != 0) {
|
||||
p2--;
|
||||
}
|
||||
*data = reinterpret_cast<T*>(p2);
|
||||
return reinterpret_cast<Y*>(p1);
|
||||
}
|
||||
void deallocate(pointer memory, size_type count) {
|
||||
std::size_t a1 = boost::alignment_of<T>::value;
|
||||
std::size_t n1 = count * sizeof(Y) + a1 - 1;
|
||||
char* p1 = reinterpret_cast<char*>(memory);
|
||||
A3(allocator).deallocate(p1, n1 + N1);
|
||||
}
|
||||
void construct(pointer memory, const Y& value) {
|
||||
allocator.construct(memory, value);
|
||||
}
|
||||
void destroy(pointer memory) {
|
||||
allocator.destroy(memory);
|
||||
}
|
||||
template<typename U>
|
||||
bool operator==(const allocate_array_helper<A, T[N], U>& other) const {
|
||||
return allocator == other.allocator;
|
||||
}
|
||||
template<typename U>
|
||||
bool operator!=(const allocate_array_helper<A, T[N], U>& other) const {
|
||||
return !(*this == other);
|
||||
}
|
||||
private:
|
||||
enum {
|
||||
N1 = N * sizeof(T)
|
||||
};
|
||||
A2 allocator;
|
||||
T** data;
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -1,124 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2012 Glen Joseph Fernandes
|
||||
* glenfe at live dot com
|
||||
*
|
||||
* Distributed under the Boost Software License,
|
||||
* Version 1.0. (See accompanying file LICENSE_1_0.txt
|
||||
* or copy at http://boost.org/LICENSE_1_0.txt)
|
||||
*/
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_ARRAY_DELETER_HPP
|
||||
#define BOOST_SMART_PTR_DETAIL_ARRAY_DELETER_HPP
|
||||
|
||||
#include <boost/smart_ptr/detail/array_utility.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_forward.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace detail {
|
||||
template<typename T>
|
||||
class array_deleter;
|
||||
template<typename T>
|
||||
class array_deleter<T[]> {
|
||||
public:
|
||||
array_deleter(std::size_t size_)
|
||||
: size(size_),
|
||||
object(0) {
|
||||
}
|
||||
~array_deleter() {
|
||||
if (object) {
|
||||
array_destroy(object, size);
|
||||
}
|
||||
}
|
||||
void init(T* memory) {
|
||||
array_init(memory, size);
|
||||
object = memory;
|
||||
}
|
||||
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
|
||||
void init(T* memory, T&& value) {
|
||||
array_init_value(memory, size, sp_forward<T>(value));
|
||||
object = memory;
|
||||
}
|
||||
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
|
||||
template<typename... Args>
|
||||
void init(T* memory, Args&&... args) {
|
||||
array_init_args(memory, size, sp_forward<Args>(args)...);
|
||||
object = memory;
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
void init_list(T* memory, const T* list) {
|
||||
array_init_list(memory, size, list);
|
||||
object = memory;
|
||||
}
|
||||
template<std::size_t M>
|
||||
void init_list(T* memory, const T* list) {
|
||||
array_init_list<T, M>(memory, size, list);
|
||||
object = memory;
|
||||
}
|
||||
void noinit(T* memory) {
|
||||
array_noinit(memory, size);
|
||||
object = memory;
|
||||
}
|
||||
void operator()(const void*) {
|
||||
if (object) {
|
||||
array_destroy(object, size);
|
||||
object = 0;
|
||||
}
|
||||
}
|
||||
private:
|
||||
std::size_t size;
|
||||
T* object;
|
||||
};
|
||||
template<typename T, std::size_t N>
|
||||
class array_deleter<T[N]> {
|
||||
public:
|
||||
array_deleter()
|
||||
: object(0) {
|
||||
}
|
||||
~array_deleter() {
|
||||
if (object) {
|
||||
array_destroy(object, N);
|
||||
}
|
||||
}
|
||||
void init(T* memory) {
|
||||
array_init(memory, N);
|
||||
object = memory;
|
||||
}
|
||||
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
|
||||
void init(T* memory, T&& value) {
|
||||
array_init_value(memory, N, sp_forward<T>(value));
|
||||
object = memory;
|
||||
}
|
||||
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
|
||||
template<typename... Args>
|
||||
void init(T* memory, Args&&... args) {
|
||||
array_init_args(memory, N, sp_forward<Args>(args)...);
|
||||
object = memory;
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
void init_list(T* memory, const T* list) {
|
||||
array_init_list(memory, N, list);
|
||||
object = memory;
|
||||
}
|
||||
template<std::size_t M>
|
||||
void init_list(T* memory, const T* list) {
|
||||
array_init_list<T, M>(memory, N, list);
|
||||
object = memory;
|
||||
}
|
||||
void noinit(T* memory) {
|
||||
array_noinit(memory, N);
|
||||
object = memory;
|
||||
}
|
||||
void operator()(const void*) {
|
||||
if (object) {
|
||||
array_destroy(object, N);
|
||||
object = 0;
|
||||
}
|
||||
}
|
||||
private:
|
||||
T* object;
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -1,53 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2012 Glen Joseph Fernandes
|
||||
* glenfe at live dot com
|
||||
*
|
||||
* Distributed under the Boost Software License,
|
||||
* Version 1.0. (See accompanying file LICENSE_1_0.txt
|
||||
* or copy at http://boost.org/LICENSE_1_0.txt)
|
||||
*/
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_ARRAY_TRAITS_HPP
|
||||
#define BOOST_SMART_PTR_DETAIL_ARRAY_TRAITS_HPP
|
||||
|
||||
#include <boost/type_traits/remove_cv.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace detail {
|
||||
template<typename T>
|
||||
struct array_base {
|
||||
typedef typename boost::remove_cv<T>::type type;
|
||||
};
|
||||
template<typename T>
|
||||
struct array_base<T[]> {
|
||||
typedef typename array_base<T>::type type;
|
||||
};
|
||||
template<typename T, std::size_t N>
|
||||
struct array_base<T[N]> {
|
||||
typedef typename array_base<T>::type type;
|
||||
};
|
||||
template<typename T>
|
||||
struct array_total {
|
||||
enum {
|
||||
size = 1
|
||||
};
|
||||
};
|
||||
template<typename T, std::size_t N>
|
||||
struct array_total<T[N]> {
|
||||
enum {
|
||||
size = N * array_total<T>::size
|
||||
};
|
||||
};
|
||||
template<typename T>
|
||||
struct array_inner;
|
||||
template<typename T>
|
||||
struct array_inner<T[]> {
|
||||
typedef T type;
|
||||
};
|
||||
template<typename T, std::size_t N>
|
||||
struct array_inner<T[N]> {
|
||||
typedef T type;
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -1,178 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2012 Glen Joseph Fernandes
|
||||
* glenfe at live dot com
|
||||
*
|
||||
* Distributed under the Boost Software License,
|
||||
* Version 1.0. (See accompanying file LICENSE_1_0.txt
|
||||
* or copy at http://boost.org/LICENSE_1_0.txt)
|
||||
*/
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_ARRAY_UTILITY_HPP
|
||||
#define BOOST_SMART_PTR_DETAIL_ARRAY_UTILITY_HPP
|
||||
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/type_traits/has_trivial_constructor.hpp>
|
||||
#include <boost/type_traits/has_trivial_destructor.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace detail {
|
||||
template<typename T>
|
||||
inline void array_destroy(T*, std::size_t, boost::true_type) {
|
||||
}
|
||||
template<typename T>
|
||||
inline void array_destroy(T* memory, std::size_t size, boost::false_type) {
|
||||
for (std::size_t i = size; i > 0; ) {
|
||||
memory[--i].~T();
|
||||
}
|
||||
}
|
||||
template<typename T>
|
||||
inline void array_destroy(T* memory, std::size_t size) {
|
||||
boost::has_trivial_destructor<T> type;
|
||||
array_destroy(memory, size, type);
|
||||
}
|
||||
template<typename T>
|
||||
inline void array_init(T* memory, std::size_t size, boost::true_type) {
|
||||
for (std::size_t i = 0; i < size; i++) {
|
||||
memory[i] = T();
|
||||
}
|
||||
}
|
||||
template<typename T>
|
||||
inline void array_init(T* memory, std::size_t size, boost::false_type) {
|
||||
#if !defined(BOOST_NO_EXCEPTIONS)
|
||||
std::size_t i = 0;
|
||||
try {
|
||||
for (; i < size; i++) {
|
||||
void* p1 = memory + i;
|
||||
::new(p1) T();
|
||||
}
|
||||
} catch (...) {
|
||||
array_destroy(memory, i);
|
||||
throw;
|
||||
}
|
||||
#else
|
||||
for (std::size_t i = 0; i < size; i++) {
|
||||
void* p1 = memory + i;
|
||||
::new(p1) T();
|
||||
}
|
||||
#endif
|
||||
}
|
||||
template<typename T>
|
||||
inline void array_init(T* memory, std::size_t size) {
|
||||
boost::has_trivial_default_constructor<T> type;
|
||||
array_init(memory, size, type);
|
||||
}
|
||||
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
|
||||
template<typename T>
|
||||
inline void array_init_value(T* memory, std::size_t size, T&& value) {
|
||||
#if !defined(BOOST_NO_EXCEPTIONS)
|
||||
std::size_t i = 0;
|
||||
try {
|
||||
for (; i < size; i++) {
|
||||
void* p1 = memory + i;
|
||||
::new(p1) T(value);
|
||||
}
|
||||
} catch (...) {
|
||||
array_destroy(memory, i);
|
||||
throw;
|
||||
}
|
||||
#else
|
||||
for (std::size_t i = 0; i < size; i++) {
|
||||
void* p1 = memory + i;
|
||||
::new(p1) T(value);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES)
|
||||
template<typename T, typename... Args>
|
||||
inline void array_init_args(T* memory, std::size_t size, Args&&... args) {
|
||||
#if !defined(BOOST_NO_EXCEPTIONS)
|
||||
std::size_t i = 0;
|
||||
try {
|
||||
for (; i < size; i++) {
|
||||
void* p1 = memory + i;
|
||||
::new(p1) T(args...);
|
||||
}
|
||||
} catch (...) {
|
||||
array_destroy(memory, i);
|
||||
throw;
|
||||
}
|
||||
#else
|
||||
for (std::size_t i = 0; i < size; i++) {
|
||||
void* p1 = memory + i;
|
||||
::new(p1) T(args...);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
template<typename T>
|
||||
inline void array_init_list(T* memory, std::size_t size, const T* list) {
|
||||
#if !defined(BOOST_NO_EXCEPTIONS)
|
||||
std::size_t i = 0;
|
||||
try {
|
||||
for (; i < size; i++) {
|
||||
void* p1 = memory + i;
|
||||
::new(p1) T(list[i]);
|
||||
}
|
||||
} catch (...) {
|
||||
array_destroy(memory, i);
|
||||
throw;
|
||||
}
|
||||
#else
|
||||
for (std::size_t i = 0; i < size; i++) {
|
||||
void* p1 = memory + i;
|
||||
::new(p1) T(list[i]);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
template<typename T, std::size_t N>
|
||||
inline void array_init_list(T* memory, std::size_t size, const T* list) {
|
||||
#if !defined(BOOST_NO_EXCEPTIONS)
|
||||
std::size_t i = 0;
|
||||
try {
|
||||
for (; i < size; i++) {
|
||||
void* p1 = memory + i;
|
||||
::new(p1) T(list[i % N]);
|
||||
}
|
||||
} catch (...) {
|
||||
array_destroy(memory, i);
|
||||
throw;
|
||||
}
|
||||
#else
|
||||
for (std::size_t i = 0; i < size; i++) {
|
||||
void* p1 = memory + i;
|
||||
::new(p1) T(list[i % N]);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
template<typename T>
|
||||
inline void array_noinit(T*, std::size_t, boost::true_type) {
|
||||
}
|
||||
template<typename T>
|
||||
inline void array_noinit(T* memory, std::size_t size, boost::false_type) {
|
||||
#if !defined(BOOST_NO_EXCEPTIONS)
|
||||
std::size_t i = 0;
|
||||
try {
|
||||
for (; i < size; i++) {
|
||||
void* p1 = memory + i;
|
||||
::new(p1) T;
|
||||
}
|
||||
} catch (...) {
|
||||
array_destroy(memory, i);
|
||||
throw;
|
||||
}
|
||||
#else
|
||||
for (std::size_t i = 0; i < size; i++) {
|
||||
void* p1 = memory + i;
|
||||
::new(p1) T;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
template<typename T>
|
||||
inline void array_noinit(T* memory, std::size_t size) {
|
||||
boost::has_trivial_default_constructor<T> type;
|
||||
array_noinit(memory, size, type);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -1,119 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// boost/detail/atomic_count.hpp - thread/SMP safe reference counter
|
||||
//
|
||||
// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// typedef <implementation-defined> boost::detail::atomic_count;
|
||||
//
|
||||
// atomic_count a(n);
|
||||
//
|
||||
// (n is convertible to long)
|
||||
//
|
||||
// Effects: Constructs an atomic_count with an initial value of n
|
||||
//
|
||||
// a;
|
||||
//
|
||||
// Returns: (long) the current value of a
|
||||
//
|
||||
// ++a;
|
||||
//
|
||||
// Effects: Atomically increments the value of a
|
||||
// Returns: (long) the new value of a
|
||||
//
|
||||
// --a;
|
||||
//
|
||||
// Effects: Atomically decrements the value of a
|
||||
// Returns: (long) the new value of a
|
||||
//
|
||||
// Important note: when --a returns zero, it must act as a
|
||||
// read memory barrier (RMB); i.e. the calling thread must
|
||||
// have a synchronized view of the memory
|
||||
//
|
||||
// On Intel IA-32 (x86) memory is always synchronized, so this
|
||||
// is not a problem.
|
||||
//
|
||||
// On many architectures the atomic instructions already act as
|
||||
// a memory barrier.
|
||||
//
|
||||
// This property is necessary for proper reference counting, since
|
||||
// a thread can update the contents of a shared object, then
|
||||
// release its reference, and another thread may immediately
|
||||
// release the last reference causing object destruction.
|
||||
//
|
||||
// The destructor needs to have a synchronized view of the
|
||||
// object to perform proper cleanup.
|
||||
//
|
||||
// Original example by Alexander Terekhov:
|
||||
//
|
||||
// Given:
|
||||
//
|
||||
// - a mutable shared object OBJ;
|
||||
// - two threads THREAD1 and THREAD2 each holding
|
||||
// a private smart_ptr object pointing to that OBJ.
|
||||
//
|
||||
// t1: THREAD1 updates OBJ (thread-safe via some synchronization)
|
||||
// and a few cycles later (after "unlock") destroys smart_ptr;
|
||||
//
|
||||
// t2: THREAD2 destroys smart_ptr WITHOUT doing any synchronization
|
||||
// with respect to shared mutable object OBJ; OBJ destructors
|
||||
// are called driven by smart_ptr interface...
|
||||
//
|
||||
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_has_sync.hpp>
|
||||
|
||||
#ifndef BOOST_HAS_THREADS
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
typedef long atomic_count;
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
#elif defined(BOOST_AC_USE_PTHREADS)
|
||||
# include <boost/smart_ptr/detail/atomic_count_pthreads.hpp>
|
||||
|
||||
#elif defined( __GNUC__ ) && ( defined( __i386__ ) || defined( __x86_64__ ) )
|
||||
# include <boost/smart_ptr/detail/atomic_count_gcc_x86.hpp>
|
||||
|
||||
#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
|
||||
# include <boost/smart_ptr/detail/atomic_count_win32.hpp>
|
||||
|
||||
#elif defined( BOOST_SP_HAS_SYNC )
|
||||
# include <boost/smart_ptr/detail/atomic_count_sync.hpp>
|
||||
|
||||
#elif defined(__GLIBCPP__) || defined(__GLIBCXX__)
|
||||
# include <boost/smart_ptr/detail/atomic_count_gcc.hpp>
|
||||
|
||||
#elif defined(BOOST_HAS_PTHREADS)
|
||||
|
||||
# define BOOST_AC_USE_PTHREADS
|
||||
# include <boost/smart_ptr/detail/atomic_count_pthreads.hpp>
|
||||
|
||||
#else
|
||||
|
||||
// Use #define BOOST_DISABLE_THREADS to avoid the error
|
||||
#error Unrecognized threading platform
|
||||
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
|
||||
@@ -1,77 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_X86_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_X86_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// boost/detail/atomic_count_gcc_x86.hpp
|
||||
//
|
||||
// atomic_count for g++ on 486+/AMD64
|
||||
//
|
||||
// Copyright 2007 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class atomic_count
|
||||
{
|
||||
public:
|
||||
|
||||
explicit atomic_count( long v ) : value_( static_cast< int >( v ) ) {}
|
||||
|
||||
long operator++()
|
||||
{
|
||||
return atomic_exchange_and_add( &value_, +1 ) + 1;
|
||||
}
|
||||
|
||||
long operator--()
|
||||
{
|
||||
return atomic_exchange_and_add( &value_, -1 ) - 1;
|
||||
}
|
||||
|
||||
operator long() const
|
||||
{
|
||||
return atomic_exchange_and_add( &value_, 0 );
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
atomic_count(atomic_count const &);
|
||||
atomic_count & operator=(atomic_count const &);
|
||||
|
||||
mutable int value_;
|
||||
|
||||
private:
|
||||
|
||||
static int atomic_exchange_and_add( int * pw, int dv )
|
||||
{
|
||||
// int r = *pw;
|
||||
// *pw += dv;
|
||||
// return r;
|
||||
|
||||
int r;
|
||||
|
||||
__asm__ __volatile__
|
||||
(
|
||||
"lock\n\t"
|
||||
"xadd %1, %0":
|
||||
"+m"( *pw ), "=r"( r ): // outputs (%0, %1)
|
||||
"1"( dv ): // inputs (%2 == %1)
|
||||
"memory", "cc" // clobbers
|
||||
);
|
||||
|
||||
return r;
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_GCC_X86_HPP_INCLUDED
|
||||
@@ -1,59 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SOLARIS_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SOLARIS_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// boost/detail/atomic_count_solaris.hpp
|
||||
// based on: boost/detail/atomic_count_win32.hpp
|
||||
//
|
||||
// Copyright (c) 2001-2005 Peter Dimov
|
||||
// Copyright (c) 2006 Michael van der Westhuizen
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#include <atomic.h>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class atomic_count
|
||||
{
|
||||
public:
|
||||
|
||||
explicit atomic_count( uint32_t v ): value_( v )
|
||||
{
|
||||
}
|
||||
|
||||
long operator++()
|
||||
{
|
||||
return atomic_inc_32_nv( &value_ );
|
||||
}
|
||||
|
||||
long operator--()
|
||||
{
|
||||
return atomic_dec_32_nv( &value_ );
|
||||
}
|
||||
|
||||
operator uint32_t() const
|
||||
{
|
||||
return static_cast<uint32_t const volatile &>( value_ );
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
atomic_count( atomic_count const & );
|
||||
atomic_count & operator=( atomic_count const & );
|
||||
|
||||
uint32_t value_;
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SOLARIS_HPP_INCLUDED
|
||||
@@ -1,61 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// boost/detail/atomic_count_sync.hpp
|
||||
//
|
||||
// atomic_count for g++ 4.1+
|
||||
//
|
||||
// http://gcc.gnu.org/onlinedocs/gcc-4.1.1/gcc/Atomic-Builtins.html
|
||||
//
|
||||
// Copyright 2007 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#if defined( __ia64__ ) && defined( __INTEL_COMPILER )
|
||||
# include <ia64intrin.h>
|
||||
#endif
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class atomic_count
|
||||
{
|
||||
public:
|
||||
|
||||
explicit atomic_count( long v ) : value_( v ) {}
|
||||
|
||||
long operator++()
|
||||
{
|
||||
return __sync_add_and_fetch( &value_, 1 );
|
||||
}
|
||||
|
||||
long operator--()
|
||||
{
|
||||
return __sync_add_and_fetch( &value_, -1 );
|
||||
}
|
||||
|
||||
operator long() const
|
||||
{
|
||||
return __sync_fetch_and_add( &value_, 0 );
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
atomic_count(atomic_count const &);
|
||||
atomic_count & operator=(atomic_count const &);
|
||||
|
||||
mutable long value_;
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED
|
||||
@@ -1,42 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// boost/detail/lightweight_mutex.hpp - lightweight mutex
|
||||
//
|
||||
// Copyright (c) 2002, 2003 Peter Dimov and Multi Media Ltd.
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// typedef <unspecified> boost::detail::lightweight_mutex;
|
||||
//
|
||||
// boost::detail::lightweight_mutex is a header-only implementation of
|
||||
// a subset of the Mutex concept requirements:
|
||||
//
|
||||
// http://www.boost.org/doc/html/threads/concepts.html#threads.concepts.Mutex
|
||||
//
|
||||
// It maps to a CRITICAL_SECTION on Windows or a pthread_mutex on POSIX.
|
||||
//
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#if !defined(BOOST_HAS_THREADS)
|
||||
# include <boost/smart_ptr/detail/lwm_nop.hpp>
|
||||
#elif defined(BOOST_HAS_PTHREADS)
|
||||
# include <boost/smart_ptr/detail/lwm_pthreads.hpp>
|
||||
#elif defined(BOOST_HAS_WINTHREADS) || defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
|
||||
# include <boost/smart_ptr/detail/lwm_win32_cs.hpp>
|
||||
#else
|
||||
// Use #define BOOST_DISABLE_THREADS to avoid the error
|
||||
# error Unrecognized threading platform
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
|
||||
@@ -1,157 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2012 Glen Joseph Fernandes
|
||||
* glenfe at live dot com
|
||||
*
|
||||
* Distributed under the Boost Software License,
|
||||
* Version 1.0. (See accompanying file LICENSE_1_0.txt
|
||||
* or copy at http://boost.org/LICENSE_1_0.txt)
|
||||
*/
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_MAKE_ARRAY_HELPER_HPP
|
||||
#define BOOST_SMART_PTR_DETAIL_MAKE_ARRAY_HELPER_HPP
|
||||
|
||||
#include <boost/type_traits/alignment_of.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace detail {
|
||||
template<typename T, typename Y = char>
|
||||
class make_array_helper;
|
||||
template<typename T, typename Y>
|
||||
class make_array_helper<T[], Y> {
|
||||
template<typename T2, typename Y2>
|
||||
friend class make_array_helper;
|
||||
public:
|
||||
typedef Y value_type;
|
||||
typedef Y* pointer;
|
||||
typedef const Y* const_pointer;
|
||||
typedef Y& reference;
|
||||
typedef const Y& const_reference;
|
||||
typedef std::size_t size_type;
|
||||
typedef ptrdiff_t difference_type;
|
||||
template<typename U>
|
||||
struct rebind {
|
||||
typedef make_array_helper<T[], U> other;
|
||||
};
|
||||
make_array_helper(std::size_t size_, T** data_)
|
||||
: size(sizeof(T) * size_),
|
||||
data(data_) {
|
||||
}
|
||||
template<class U>
|
||||
make_array_helper(const make_array_helper<T[], U>& other)
|
||||
: size(other.size),
|
||||
data(other.data) {
|
||||
}
|
||||
pointer address(reference value) const {
|
||||
return &value;
|
||||
}
|
||||
const_pointer address(const_reference value) const {
|
||||
return &value;
|
||||
}
|
||||
size_type max_size() const {
|
||||
return static_cast<std::size_t>(-1) / sizeof(Y);
|
||||
}
|
||||
pointer allocate(size_type count, const void* = 0) {
|
||||
std::size_t a1 = boost::alignment_of<T>::value;
|
||||
std::size_t n1 = count * sizeof(Y) + a1 - 1;
|
||||
void* p1 = ::operator new(n1 + size);
|
||||
char* p2 = static_cast<char*>(p1) + n1;
|
||||
while (std::size_t(p2) % a1 != 0) {
|
||||
p2--;
|
||||
}
|
||||
*data = reinterpret_cast<T*>(p2);
|
||||
return reinterpret_cast<Y*>(p1);
|
||||
}
|
||||
void deallocate(pointer memory, size_type) {
|
||||
void* p1 = memory;
|
||||
::operator delete(p1);
|
||||
}
|
||||
void construct(pointer memory, const Y& value) {
|
||||
void* p1 = memory;
|
||||
::new(p1) Y(value);
|
||||
}
|
||||
void destroy(pointer memory) {
|
||||
memory->~Y();
|
||||
}
|
||||
template<typename U>
|
||||
bool operator==(const make_array_helper<T[], U>&) const {
|
||||
return true;
|
||||
}
|
||||
template<typename U>
|
||||
bool operator!=(const make_array_helper<T[], U>& other) const {
|
||||
return !(*this == other);
|
||||
}
|
||||
private:
|
||||
std::size_t size;
|
||||
T** data;
|
||||
};
|
||||
template<typename T, std::size_t N, typename Y>
|
||||
class make_array_helper<T[N], Y> {
|
||||
template<typename T2, typename Y2>
|
||||
friend class make_array_helper;
|
||||
public:
|
||||
typedef Y value_type;
|
||||
typedef Y* pointer;
|
||||
typedef const Y* const_pointer;
|
||||
typedef Y& reference;
|
||||
typedef const Y& const_reference;
|
||||
typedef std::size_t size_type;
|
||||
typedef ptrdiff_t difference_type;
|
||||
template<typename U>
|
||||
struct rebind {
|
||||
typedef make_array_helper<T[N], U> other;
|
||||
};
|
||||
make_array_helper(T** data_)
|
||||
: data(data_) {
|
||||
}
|
||||
template<class U>
|
||||
make_array_helper(const make_array_helper<T[N], U>& other)
|
||||
: data(other.data) {
|
||||
}
|
||||
pointer address(reference value) const {
|
||||
return &value;
|
||||
}
|
||||
const_pointer address(const_reference value) const {
|
||||
return &value;
|
||||
}
|
||||
size_type max_size() const {
|
||||
return static_cast<std::size_t>(-1) / sizeof(Y);
|
||||
}
|
||||
pointer allocate(size_type count, const void* = 0) {
|
||||
std::size_t a1 = boost::alignment_of<T>::value;
|
||||
std::size_t n1 = count * sizeof(Y) + a1 - 1;
|
||||
void* p1 = ::operator new(n1 + N1);
|
||||
char* p2 = static_cast<char*>(p1) + n1;
|
||||
while (std::size_t(p2) % a1 != 0) {
|
||||
p2--;
|
||||
}
|
||||
*data = reinterpret_cast<T*>(p2);
|
||||
return reinterpret_cast<Y*>(p1);
|
||||
}
|
||||
void deallocate(pointer memory, size_type) {
|
||||
void* p1 = memory;
|
||||
::operator delete(p1);
|
||||
}
|
||||
void construct(pointer memory, const Y& value) {
|
||||
void* p1 = memory;
|
||||
::new(p1) Y(value);
|
||||
}
|
||||
void destroy(pointer memory) {
|
||||
memory->~Y();
|
||||
}
|
||||
template<typename U>
|
||||
bool operator==(const make_array_helper<T[N], U>&) const {
|
||||
return true;
|
||||
}
|
||||
template<typename U>
|
||||
bool operator!=(const make_array_helper<T[N], U>& other) const {
|
||||
return !(*this == other);
|
||||
}
|
||||
private:
|
||||
enum {
|
||||
N1 = N * sizeof(T)
|
||||
};
|
||||
T** data;
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -1,63 +0,0 @@
|
||||
// This header intentionally has no include guards.
|
||||
//
|
||||
// Copyright (c) 2001-2009, 2012 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS ) && !defined( BOOST_NO_CXX11_NULLPTR )
|
||||
|
||||
explicit operator bool () const BOOST_NOEXCEPT
|
||||
{
|
||||
return px != 0;
|
||||
}
|
||||
|
||||
#elif ( defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, < 0x570) ) || defined(__CINT__)
|
||||
|
||||
operator bool () const BOOST_NOEXCEPT
|
||||
{
|
||||
return px != 0;
|
||||
}
|
||||
|
||||
#elif defined( _MANAGED )
|
||||
|
||||
static void unspecified_bool( this_type*** )
|
||||
{
|
||||
}
|
||||
|
||||
typedef void (*unspecified_bool_type)( this_type*** );
|
||||
|
||||
operator unspecified_bool_type() const BOOST_NOEXCEPT
|
||||
{
|
||||
return px == 0? 0: unspecified_bool;
|
||||
}
|
||||
|
||||
#elif \
|
||||
( defined(__MWERKS__) && BOOST_WORKAROUND(__MWERKS__, < 0x3200) ) || \
|
||||
( defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ < 304) ) || \
|
||||
( defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x590) )
|
||||
|
||||
typedef element_type * (this_type::*unspecified_bool_type)() const;
|
||||
|
||||
operator unspecified_bool_type() const BOOST_NOEXCEPT
|
||||
{
|
||||
return px == 0? 0: &this_type::get;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
typedef element_type * this_type::*unspecified_bool_type;
|
||||
|
||||
operator unspecified_bool_type() const BOOST_NOEXCEPT
|
||||
{
|
||||
return px == 0? 0: &this_type::px;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
// operator! is redundant, but some compilers need it
|
||||
bool operator! () const BOOST_NOEXCEPT
|
||||
{
|
||||
return px == 0;
|
||||
}
|
||||
@@ -1,199 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_QUICK_ALLOCATOR_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_QUICK_ALLOCATOR_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/quick_allocator.hpp
|
||||
//
|
||||
// Copyright (c) 2003 David Abrahams
|
||||
// Copyright (c) 2003 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#include <boost/smart_ptr/detail/lightweight_mutex.hpp>
|
||||
#include <boost/type_traits/type_with_alignment.hpp>
|
||||
#include <boost/type_traits/alignment_of.hpp>
|
||||
|
||||
#include <new> // ::operator new, ::operator delete
|
||||
#include <cstddef> // std::size_t
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
template<unsigned size, unsigned align_> union freeblock
|
||||
{
|
||||
typedef typename boost::type_with_alignment<align_>::type aligner_type;
|
||||
aligner_type aligner;
|
||||
char bytes[size];
|
||||
freeblock * next;
|
||||
};
|
||||
|
||||
template<unsigned size, unsigned align_> struct allocator_impl
|
||||
{
|
||||
typedef freeblock<size, align_> block;
|
||||
|
||||
// It may seem odd to use such small pages.
|
||||
//
|
||||
// However, on a typical Windows implementation that uses
|
||||
// the OS allocator, "normal size" pages interact with the
|
||||
// "ordinary" operator new, slowing it down dramatically.
|
||||
//
|
||||
// 512 byte pages are handled by the small object allocator,
|
||||
// and don't interfere with ::new.
|
||||
//
|
||||
// The other alternative is to use much bigger pages (1M.)
|
||||
//
|
||||
// It is surprisingly easy to hit pathological behavior by
|
||||
// varying the page size. g++ 2.96 on Red Hat Linux 7.2,
|
||||
// for example, passionately dislikes 496. 512 seems OK.
|
||||
|
||||
#if defined(BOOST_QA_PAGE_SIZE)
|
||||
|
||||
enum { items_per_page = BOOST_QA_PAGE_SIZE / size };
|
||||
|
||||
#else
|
||||
|
||||
enum { items_per_page = 512 / size }; // 1048560 / size
|
||||
|
||||
#endif
|
||||
|
||||
#ifdef BOOST_HAS_THREADS
|
||||
|
||||
static lightweight_mutex & mutex()
|
||||
{
|
||||
static freeblock< sizeof( lightweight_mutex ), boost::alignment_of< lightweight_mutex >::value > fbm;
|
||||
static lightweight_mutex * pm = new( &fbm ) lightweight_mutex;
|
||||
return *pm;
|
||||
}
|
||||
|
||||
static lightweight_mutex * mutex_init;
|
||||
|
||||
#endif
|
||||
|
||||
static block * free;
|
||||
static block * page;
|
||||
static unsigned last;
|
||||
|
||||
static inline void * alloc()
|
||||
{
|
||||
#ifdef BOOST_HAS_THREADS
|
||||
lightweight_mutex::scoped_lock lock( mutex() );
|
||||
#endif
|
||||
if(block * x = free)
|
||||
{
|
||||
free = x->next;
|
||||
return x;
|
||||
}
|
||||
else
|
||||
{
|
||||
if(last == items_per_page)
|
||||
{
|
||||
// "Listen to me carefully: there is no memory leak"
|
||||
// -- Scott Meyers, Eff C++ 2nd Ed Item 10
|
||||
page = ::new block[items_per_page];
|
||||
last = 0;
|
||||
}
|
||||
|
||||
return &page[last++];
|
||||
}
|
||||
}
|
||||
|
||||
static inline void * alloc(std::size_t n)
|
||||
{
|
||||
if(n != size) // class-specific new called for a derived object
|
||||
{
|
||||
return ::operator new(n);
|
||||
}
|
||||
else
|
||||
{
|
||||
#ifdef BOOST_HAS_THREADS
|
||||
lightweight_mutex::scoped_lock lock( mutex() );
|
||||
#endif
|
||||
if(block * x = free)
|
||||
{
|
||||
free = x->next;
|
||||
return x;
|
||||
}
|
||||
else
|
||||
{
|
||||
if(last == items_per_page)
|
||||
{
|
||||
page = ::new block[items_per_page];
|
||||
last = 0;
|
||||
}
|
||||
|
||||
return &page[last++];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static inline void dealloc(void * pv)
|
||||
{
|
||||
if(pv != 0) // 18.4.1.1/13
|
||||
{
|
||||
#ifdef BOOST_HAS_THREADS
|
||||
lightweight_mutex::scoped_lock lock( mutex() );
|
||||
#endif
|
||||
block * pb = static_cast<block *>(pv);
|
||||
pb->next = free;
|
||||
free = pb;
|
||||
}
|
||||
}
|
||||
|
||||
static inline void dealloc(void * pv, std::size_t n)
|
||||
{
|
||||
if(n != size) // class-specific delete called for a derived object
|
||||
{
|
||||
::operator delete(pv);
|
||||
}
|
||||
else if(pv != 0) // 18.4.1.1/13
|
||||
{
|
||||
#ifdef BOOST_HAS_THREADS
|
||||
lightweight_mutex::scoped_lock lock( mutex() );
|
||||
#endif
|
||||
block * pb = static_cast<block *>(pv);
|
||||
pb->next = free;
|
||||
free = pb;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
#ifdef BOOST_HAS_THREADS
|
||||
|
||||
template<unsigned size, unsigned align_>
|
||||
lightweight_mutex * allocator_impl<size, align_>::mutex_init = &allocator_impl<size, align_>::mutex();
|
||||
|
||||
#endif
|
||||
|
||||
template<unsigned size, unsigned align_>
|
||||
freeblock<size, align_> * allocator_impl<size, align_>::free = 0;
|
||||
|
||||
template<unsigned size, unsigned align_>
|
||||
freeblock<size, align_> * allocator_impl<size, align_>::page = 0;
|
||||
|
||||
template<unsigned size, unsigned align_>
|
||||
unsigned allocator_impl<size, align_>::last = allocator_impl<size, align_>::items_per_page;
|
||||
|
||||
template<class T>
|
||||
struct quick_allocator: public allocator_impl< sizeof(T), boost::alignment_of<T>::value >
|
||||
{
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_QUICK_ALLOCATOR_HPP_INCLUDED
|
||||
@@ -1,603 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SHARED_COUNT_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SHARED_COUNT_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/shared_count.hpp
|
||||
//
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
|
||||
// Copyright 2004-2005 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#ifdef __BORLANDC__
|
||||
# pragma warn -8027 // Functions containing try are not expanded inline
|
||||
#endif
|
||||
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/checked_delete.hpp>
|
||||
#include <boost/throw_exception.hpp>
|
||||
#include <boost/smart_ptr/bad_weak_ptr.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_counted_base.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_counted_impl.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
// In order to avoid circular dependencies with Boost.TR1
|
||||
// we make sure that our include of <memory> doesn't try to
|
||||
// pull in the TR1 headers: that's why we use this header
|
||||
// rather than including <memory> directly:
|
||||
#include <boost/config/no_tr1/memory.hpp> // std::auto_ptr
|
||||
#include <functional> // std::less
|
||||
|
||||
#ifdef BOOST_NO_EXCEPTIONS
|
||||
# include <new> // std::bad_alloc
|
||||
#endif
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_SMART_PTR )
|
||||
# include <boost/utility/addressof.hpp>
|
||||
#endif
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
|
||||
int const shared_count_id = 0x2C35F101;
|
||||
int const weak_count_id = 0x298C38A4;
|
||||
|
||||
#endif
|
||||
|
||||
struct sp_nothrow_tag {};
|
||||
|
||||
template< class D > struct sp_inplace_tag
|
||||
{
|
||||
};
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_SMART_PTR )
|
||||
|
||||
template< class T > class sp_reference_wrapper
|
||||
{
|
||||
public:
|
||||
|
||||
explicit sp_reference_wrapper( T & t): t_( boost::addressof( t ) )
|
||||
{
|
||||
}
|
||||
|
||||
template< class Y > void operator()( Y * p ) const
|
||||
{
|
||||
(*t_)( p );
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
T * t_;
|
||||
};
|
||||
|
||||
template< class D > struct sp_convert_reference
|
||||
{
|
||||
typedef D type;
|
||||
};
|
||||
|
||||
template< class D > struct sp_convert_reference< D& >
|
||||
{
|
||||
typedef sp_reference_wrapper< D > type;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
class weak_count;
|
||||
|
||||
class shared_count
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base * pi_;
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
int id_;
|
||||
#endif
|
||||
|
||||
friend class weak_count;
|
||||
|
||||
public:
|
||||
|
||||
shared_count(): pi_(0) // nothrow
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
}
|
||||
|
||||
template<class Y> explicit shared_count( Y * p ): pi_( 0 )
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
#ifndef BOOST_NO_EXCEPTIONS
|
||||
|
||||
try
|
||||
{
|
||||
pi_ = new sp_counted_impl_p<Y>( p );
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
boost::checked_delete( p );
|
||||
throw;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
pi_ = new sp_counted_impl_p<Y>( p );
|
||||
|
||||
if( pi_ == 0 )
|
||||
{
|
||||
boost::checked_delete( p );
|
||||
boost::throw_exception( std::bad_alloc() );
|
||||
}
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, <= 1200 )
|
||||
template<class Y, class D> shared_count( Y * p, D d ): pi_(0)
|
||||
#else
|
||||
template<class P, class D> shared_count( P p, D d ): pi_(0)
|
||||
#endif
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
#if defined( BOOST_MSVC ) && BOOST_WORKAROUND( BOOST_MSVC, <= 1200 )
|
||||
typedef Y* P;
|
||||
#endif
|
||||
#ifndef BOOST_NO_EXCEPTIONS
|
||||
|
||||
try
|
||||
{
|
||||
pi_ = new sp_counted_impl_pd<P, D>(p, d);
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
d(p); // delete p
|
||||
throw;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
pi_ = new sp_counted_impl_pd<P, D>(p, d);
|
||||
|
||||
if(pi_ == 0)
|
||||
{
|
||||
d(p); // delete p
|
||||
boost::throw_exception(std::bad_alloc());
|
||||
}
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
#if !defined( BOOST_NO_FUNCTION_TEMPLATE_ORDERING )
|
||||
|
||||
template< class P, class D > shared_count( P p, sp_inplace_tag<D> ): pi_( 0 )
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
#ifndef BOOST_NO_EXCEPTIONS
|
||||
|
||||
try
|
||||
{
|
||||
pi_ = new sp_counted_impl_pd< P, D >( p );
|
||||
}
|
||||
catch( ... )
|
||||
{
|
||||
D::operator_fn( p ); // delete p
|
||||
throw;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
pi_ = new sp_counted_impl_pd< P, D >( p );
|
||||
|
||||
if( pi_ == 0 )
|
||||
{
|
||||
D::operator_fn( p ); // delete p
|
||||
boost::throw_exception( std::bad_alloc() );
|
||||
}
|
||||
|
||||
#endif // #ifndef BOOST_NO_EXCEPTIONS
|
||||
}
|
||||
|
||||
#endif // !defined( BOOST_NO_FUNCTION_TEMPLATE_ORDERING )
|
||||
|
||||
template<class P, class D, class A> shared_count( P p, D d, A a ): pi_( 0 )
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
typedef sp_counted_impl_pda<P, D, A> impl_type;
|
||||
typedef typename A::template rebind< impl_type >::other A2;
|
||||
|
||||
A2 a2( a );
|
||||
|
||||
#ifndef BOOST_NO_EXCEPTIONS
|
||||
|
||||
try
|
||||
{
|
||||
pi_ = a2.allocate( 1, static_cast< impl_type* >( 0 ) );
|
||||
new( static_cast< void* >( pi_ ) ) impl_type( p, d, a );
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
d( p );
|
||||
|
||||
if( pi_ != 0 )
|
||||
{
|
||||
a2.deallocate( static_cast< impl_type* >( pi_ ), 1 );
|
||||
}
|
||||
|
||||
throw;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
pi_ = a2.allocate( 1, static_cast< impl_type* >( 0 ) );
|
||||
|
||||
if( pi_ != 0 )
|
||||
{
|
||||
new( static_cast< void* >( pi_ ) ) impl_type( p, d, a );
|
||||
}
|
||||
else
|
||||
{
|
||||
d( p );
|
||||
boost::throw_exception( std::bad_alloc() );
|
||||
}
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
#if !defined( BOOST_NO_FUNCTION_TEMPLATE_ORDERING )
|
||||
|
||||
template< class P, class D, class A > shared_count( P p, sp_inplace_tag< D >, A a ): pi_( 0 )
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
typedef sp_counted_impl_pda< P, D, A > impl_type;
|
||||
typedef typename A::template rebind< impl_type >::other A2;
|
||||
|
||||
A2 a2( a );
|
||||
|
||||
#ifndef BOOST_NO_EXCEPTIONS
|
||||
|
||||
try
|
||||
{
|
||||
pi_ = a2.allocate( 1, static_cast< impl_type* >( 0 ) );
|
||||
new( static_cast< void* >( pi_ ) ) impl_type( p, a );
|
||||
}
|
||||
catch(...)
|
||||
{
|
||||
D::operator_fn( p );
|
||||
|
||||
if( pi_ != 0 )
|
||||
{
|
||||
a2.deallocate( static_cast< impl_type* >( pi_ ), 1 );
|
||||
}
|
||||
|
||||
throw;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
pi_ = a2.allocate( 1, static_cast< impl_type* >( 0 ) );
|
||||
|
||||
if( pi_ != 0 )
|
||||
{
|
||||
new( static_cast< void* >( pi_ ) ) impl_type( p, a );
|
||||
}
|
||||
else
|
||||
{
|
||||
D::operator_fn( p );
|
||||
boost::throw_exception( std::bad_alloc() );
|
||||
}
|
||||
|
||||
#endif // #ifndef BOOST_NO_EXCEPTIONS
|
||||
}
|
||||
|
||||
#endif // !defined( BOOST_NO_FUNCTION_TEMPLATE_ORDERING )
|
||||
|
||||
#ifndef BOOST_NO_AUTO_PTR
|
||||
|
||||
// auto_ptr<Y> is special cased to provide the strong guarantee
|
||||
|
||||
template<class Y>
|
||||
explicit shared_count( std::auto_ptr<Y> & r ): pi_( new sp_counted_impl_p<Y>( r.get() ) )
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
#ifdef BOOST_NO_EXCEPTIONS
|
||||
|
||||
if( pi_ == 0 )
|
||||
{
|
||||
boost::throw_exception(std::bad_alloc());
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
r.release();
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_SMART_PTR )
|
||||
|
||||
template<class Y, class D>
|
||||
explicit shared_count( std::unique_ptr<Y, D> & r ): pi_( 0 )
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
typedef typename sp_convert_reference<D>::type D2;
|
||||
|
||||
D2 d2( r.get_deleter() );
|
||||
pi_ = new sp_counted_impl_pd< typename std::unique_ptr<Y, D>::pointer, D2 >( r.get(), d2 );
|
||||
|
||||
#ifdef BOOST_NO_EXCEPTIONS
|
||||
|
||||
if( pi_ == 0 )
|
||||
{
|
||||
boost::throw_exception( std::bad_alloc() );
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
r.release();
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
~shared_count() // nothrow
|
||||
{
|
||||
if( pi_ != 0 ) pi_->release();
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
id_ = 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
shared_count(shared_count const & r): pi_(r.pi_) // nothrow
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
if( pi_ != 0 ) pi_->add_ref_copy();
|
||||
}
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
|
||||
|
||||
shared_count(shared_count && r): pi_(r.pi_) // nothrow
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
r.pi_ = 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
explicit shared_count(weak_count const & r); // throws bad_weak_ptr when r.use_count() == 0
|
||||
shared_count( weak_count const & r, sp_nothrow_tag ); // constructs an empty *this when r.use_count() == 0
|
||||
|
||||
shared_count & operator= (shared_count const & r) // nothrow
|
||||
{
|
||||
sp_counted_base * tmp = r.pi_;
|
||||
|
||||
if( tmp != pi_ )
|
||||
{
|
||||
if( tmp != 0 ) tmp->add_ref_copy();
|
||||
if( pi_ != 0 ) pi_->release();
|
||||
pi_ = tmp;
|
||||
}
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
void swap(shared_count & r) // nothrow
|
||||
{
|
||||
sp_counted_base * tmp = r.pi_;
|
||||
r.pi_ = pi_;
|
||||
pi_ = tmp;
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return pi_ != 0? pi_->use_count(): 0;
|
||||
}
|
||||
|
||||
bool unique() const // nothrow
|
||||
{
|
||||
return use_count() == 1;
|
||||
}
|
||||
|
||||
bool empty() const // nothrow
|
||||
{
|
||||
return pi_ == 0;
|
||||
}
|
||||
|
||||
friend inline bool operator==(shared_count const & a, shared_count const & b)
|
||||
{
|
||||
return a.pi_ == b.pi_;
|
||||
}
|
||||
|
||||
friend inline bool operator<(shared_count const & a, shared_count const & b)
|
||||
{
|
||||
return std::less<sp_counted_base *>()( a.pi_, b.pi_ );
|
||||
}
|
||||
|
||||
void * get_deleter( sp_typeinfo const & ti ) const
|
||||
{
|
||||
return pi_? pi_->get_deleter( ti ): 0;
|
||||
}
|
||||
|
||||
void * get_untyped_deleter() const
|
||||
{
|
||||
return pi_? pi_->get_untyped_deleter(): 0;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
class weak_count
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base * pi_;
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
int id_;
|
||||
#endif
|
||||
|
||||
friend class shared_count;
|
||||
|
||||
public:
|
||||
|
||||
weak_count(): pi_(0) // nothrow
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(weak_count_id)
|
||||
#endif
|
||||
{
|
||||
}
|
||||
|
||||
weak_count(shared_count const & r): pi_(r.pi_) // nothrow
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(weak_count_id)
|
||||
#endif
|
||||
{
|
||||
if(pi_ != 0) pi_->weak_add_ref();
|
||||
}
|
||||
|
||||
weak_count(weak_count const & r): pi_(r.pi_) // nothrow
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(weak_count_id)
|
||||
#endif
|
||||
{
|
||||
if(pi_ != 0) pi_->weak_add_ref();
|
||||
}
|
||||
|
||||
// Move support
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
|
||||
|
||||
weak_count(weak_count && r): pi_(r.pi_) // nothrow
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(weak_count_id)
|
||||
#endif
|
||||
{
|
||||
r.pi_ = 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
~weak_count() // nothrow
|
||||
{
|
||||
if(pi_ != 0) pi_->weak_release();
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
id_ = 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
weak_count & operator= (shared_count const & r) // nothrow
|
||||
{
|
||||
sp_counted_base * tmp = r.pi_;
|
||||
|
||||
if( tmp != pi_ )
|
||||
{
|
||||
if(tmp != 0) tmp->weak_add_ref();
|
||||
if(pi_ != 0) pi_->weak_release();
|
||||
pi_ = tmp;
|
||||
}
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
weak_count & operator= (weak_count const & r) // nothrow
|
||||
{
|
||||
sp_counted_base * tmp = r.pi_;
|
||||
|
||||
if( tmp != pi_ )
|
||||
{
|
||||
if(tmp != 0) tmp->weak_add_ref();
|
||||
if(pi_ != 0) pi_->weak_release();
|
||||
pi_ = tmp;
|
||||
}
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
void swap(weak_count & r) // nothrow
|
||||
{
|
||||
sp_counted_base * tmp = r.pi_;
|
||||
r.pi_ = pi_;
|
||||
pi_ = tmp;
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return pi_ != 0? pi_->use_count(): 0;
|
||||
}
|
||||
|
||||
bool empty() const // nothrow
|
||||
{
|
||||
return pi_ == 0;
|
||||
}
|
||||
|
||||
friend inline bool operator==(weak_count const & a, weak_count const & b)
|
||||
{
|
||||
return a.pi_ == b.pi_;
|
||||
}
|
||||
|
||||
friend inline bool operator<(weak_count const & a, weak_count const & b)
|
||||
{
|
||||
return std::less<sp_counted_base *>()(a.pi_, b.pi_);
|
||||
}
|
||||
};
|
||||
|
||||
inline shared_count::shared_count( weak_count const & r ): pi_( r.pi_ )
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
if( pi_ == 0 || !pi_->add_ref_lock() )
|
||||
{
|
||||
boost::throw_exception( boost::bad_weak_ptr() );
|
||||
}
|
||||
}
|
||||
|
||||
inline shared_count::shared_count( weak_count const & r, sp_nothrow_tag ): pi_( r.pi_ )
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
if( pi_ != 0 && !pi_->add_ref_lock() )
|
||||
{
|
||||
pi_ = 0;
|
||||
}
|
||||
}
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#ifdef __BORLANDC__
|
||||
# pragma warn .8027 // Functions containing try are not expanded inline
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SHARED_COUNT_HPP_INCLUDED
|
||||
@@ -1,91 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_CONVERTIBLE_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_CONVERTIBLE_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
// detail/sp_convertible.hpp
|
||||
//
|
||||
// Copyright 2008 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#if !defined( BOOST_SP_NO_SP_CONVERTIBLE ) && defined( BOOST_NO_SFINAE )
|
||||
# define BOOST_SP_NO_SP_CONVERTIBLE
|
||||
#endif
|
||||
|
||||
#if !defined( BOOST_SP_NO_SP_CONVERTIBLE ) && defined( __GNUC__ ) && ( __GNUC__ * 100 + __GNUC_MINOR__ < 303 )
|
||||
# define BOOST_SP_NO_SP_CONVERTIBLE
|
||||
#endif
|
||||
|
||||
#if !defined( BOOST_SP_NO_SP_CONVERTIBLE ) && defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x630 )
|
||||
# define BOOST_SP_NO_SP_CONVERTIBLE
|
||||
#endif
|
||||
|
||||
#if !defined( BOOST_SP_NO_SP_CONVERTIBLE )
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
template< class Y, class T > struct sp_convertible
|
||||
{
|
||||
typedef char (&yes) [1];
|
||||
typedef char (&no) [2];
|
||||
|
||||
static yes f( T* );
|
||||
static no f( ... );
|
||||
|
||||
enum _vt { value = sizeof( (f)( static_cast<Y*>(0) ) ) == sizeof(yes) };
|
||||
};
|
||||
|
||||
template< class Y, class T > struct sp_convertible< Y, T[] >
|
||||
{
|
||||
enum _vt { value = false };
|
||||
};
|
||||
|
||||
template< class Y, class T > struct sp_convertible< Y[], T[] >
|
||||
{
|
||||
enum _vt { value = sp_convertible< Y[1], T[1] >::value };
|
||||
};
|
||||
|
||||
template< class Y, std::size_t N, class T > struct sp_convertible< Y[N], T[] >
|
||||
{
|
||||
enum _vt { value = sp_convertible< Y[1], T[1] >::value };
|
||||
};
|
||||
|
||||
struct sp_empty
|
||||
{
|
||||
};
|
||||
|
||||
template< bool > struct sp_enable_if_convertible_impl;
|
||||
|
||||
template<> struct sp_enable_if_convertible_impl<true>
|
||||
{
|
||||
typedef sp_empty type;
|
||||
};
|
||||
|
||||
template<> struct sp_enable_if_convertible_impl<false>
|
||||
{
|
||||
};
|
||||
|
||||
template< class Y, class T > struct sp_enable_if_convertible: public sp_enable_if_convertible_impl< sp_convertible< Y, T >::value >
|
||||
{
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // !defined( BOOST_SP_NO_SP_CONVERTIBLE )
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_CONVERTIBLE_HPP_INCLUDED
|
||||
@@ -1,79 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/sp_counted_base.hpp
|
||||
//
|
||||
// Copyright 2005, 2006 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_has_sync.hpp>
|
||||
|
||||
#if defined( BOOST_SP_DISABLE_THREADS )
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_nt.hpp>
|
||||
|
||||
#elif defined( BOOST_SP_USE_SPINLOCK )
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_spin.hpp>
|
||||
|
||||
#elif defined( BOOST_SP_USE_PTHREADS )
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_pt.hpp>
|
||||
|
||||
#elif defined( BOOST_DISABLE_THREADS ) && !defined( BOOST_SP_ENABLE_THREADS ) && !defined( BOOST_DISABLE_WIN32 )
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_nt.hpp>
|
||||
|
||||
#elif defined( __SNC__ )
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_snc_ps3.hpp>
|
||||
|
||||
#elif defined( __GNUC__ ) && ( defined( __i386__ ) || defined( __x86_64__ ) ) && !defined(__PATHSCALE__)
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_gcc_x86.hpp>
|
||||
|
||||
#elif defined(__HP_aCC) && defined(__ia64)
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_acc_ia64.hpp>
|
||||
|
||||
#elif defined( __GNUC__ ) && defined( __ia64__ ) && !defined( __INTEL_COMPILER ) && !defined(__PATHSCALE__)
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_gcc_ia64.hpp>
|
||||
|
||||
#elif defined( __IBMCPP__ ) && defined( __powerpc )
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_vacpp_ppc.hpp>
|
||||
|
||||
#elif defined( __MWERKS__ ) && defined( __POWERPC__ )
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_cw_ppc.hpp>
|
||||
|
||||
#elif defined( __GNUC__ ) && ( defined( __powerpc__ ) || defined( __ppc__ ) || defined( __ppc ) ) && !defined(__PATHSCALE__) && !defined( _AIX )
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_gcc_ppc.hpp>
|
||||
|
||||
#elif defined( __GNUC__ ) && ( defined( __mips__ ) || defined( _mips ) ) && !defined(__PATHSCALE__)
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp>
|
||||
|
||||
#elif defined( BOOST_SP_HAS_SYNC )
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_sync.hpp>
|
||||
|
||||
#elif defined(__GNUC__) && ( defined( __sparcv9 ) || ( defined( __sparcv8 ) && ( __GNUC__ * 100 + __GNUC_MINOR__ >= 402 ) ) )
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_gcc_sparc.hpp>
|
||||
|
||||
#elif defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ ) || defined(__CYGWIN__)
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_w32.hpp>
|
||||
|
||||
#elif defined( _AIX )
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_aix.hpp>
|
||||
|
||||
#elif !defined( BOOST_HAS_THREADS )
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_nt.hpp>
|
||||
|
||||
#else
|
||||
# include <boost/smart_ptr/detail/sp_counted_base_spin.hpp>
|
||||
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_HPP_INCLUDED
|
||||
@@ -1,151 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_ACC_IA64_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_ACC_IA64_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_acc_ia64.hpp - aC++ on HP-UX IA64
|
||||
//
|
||||
// Copyright 2007 Baruch Zilber
|
||||
// Copyright 2007 Boris Gubenko
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
//
|
||||
// Lock-free algorithm by Alexander Terekhov
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <machine/sys/inline.h>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline void atomic_increment( int * pw )
|
||||
{
|
||||
// ++*pw;
|
||||
|
||||
_Asm_fetchadd(_FASZ_W, _SEM_REL, pw, +1, _LDHINT_NONE);
|
||||
}
|
||||
|
||||
inline int atomic_decrement( int * pw )
|
||||
{
|
||||
// return --*pw;
|
||||
|
||||
int r = static_cast<int>(_Asm_fetchadd(_FASZ_W, _SEM_REL, pw, -1, _LDHINT_NONE));
|
||||
if (1 == r)
|
||||
{
|
||||
_Asm_mf();
|
||||
}
|
||||
|
||||
return r - 1;
|
||||
}
|
||||
|
||||
inline int atomic_conditional_increment( int * pw )
|
||||
{
|
||||
// if( *pw != 0 ) ++*pw;
|
||||
// return *pw;
|
||||
|
||||
int v = *pw;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
if (0 == v)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
_Asm_mov_to_ar(_AREG_CCV,
|
||||
v,
|
||||
(_UP_CALL_FENCE | _UP_SYS_FENCE | _DOWN_CALL_FENCE | _DOWN_SYS_FENCE));
|
||||
int r = static_cast<int>(_Asm_cmpxchg(_SZ_W, _SEM_ACQ, pw, v + 1, _LDHINT_NONE));
|
||||
if (r == v)
|
||||
{
|
||||
return r + 1;
|
||||
}
|
||||
|
||||
v = r;
|
||||
}
|
||||
}
|
||||
|
||||
class sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base( sp_counted_base const & );
|
||||
sp_counted_base & operator= ( sp_counted_base const & );
|
||||
|
||||
int use_count_; // #shared
|
||||
int weak_count_; // #weak + (#shared != 0)
|
||||
|
||||
public:
|
||||
|
||||
sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
|
||||
{
|
||||
}
|
||||
|
||||
virtual ~sp_counted_base() // nothrow
|
||||
{
|
||||
}
|
||||
|
||||
// dispose() is called when use_count_ drops to zero, to release
|
||||
// the resources managed by *this.
|
||||
|
||||
virtual void dispose() = 0; // nothrow
|
||||
|
||||
// destroy() is called when weak_count_ drops to zero.
|
||||
|
||||
virtual void destroy() // nothrow
|
||||
{
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
atomic_increment( &use_count_ );
|
||||
}
|
||||
|
||||
bool add_ref_lock() // true on success
|
||||
{
|
||||
return atomic_conditional_increment( &use_count_ ) != 0;
|
||||
}
|
||||
|
||||
void release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &use_count_ ) == 0 )
|
||||
{
|
||||
dispose();
|
||||
weak_release();
|
||||
}
|
||||
}
|
||||
|
||||
void weak_add_ref() // nothrow
|
||||
{
|
||||
atomic_increment( &weak_count_ );
|
||||
}
|
||||
|
||||
void weak_release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &weak_count_ ) == 0 )
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return static_cast<int const volatile &>( use_count_ ); // TODO use ld.acq here
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_ACC_IA64_HPP_INCLUDED
|
||||
@@ -1,143 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_AIX_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_AIX_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_aix.hpp
|
||||
// based on: detail/sp_counted_base_w32.hpp
|
||||
//
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
|
||||
// Copyright 2004-2005 Peter Dimov
|
||||
// Copyright 2006 Michael van der Westhuizen
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
//
|
||||
// Lock-free algorithm by Alexander Terekhov
|
||||
//
|
||||
// Thanks to Ben Hitchings for the #weak + (#shared != 0)
|
||||
// formulation
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <builtins.h>
|
||||
#include <sys/atomic_op.h>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline void atomic_increment( int32_t* pw )
|
||||
{
|
||||
// ++*pw;
|
||||
|
||||
fetch_and_add( pw, 1 );
|
||||
}
|
||||
|
||||
inline int32_t atomic_decrement( int32_t * pw )
|
||||
{
|
||||
// return --*pw;
|
||||
|
||||
int32_t originalValue;
|
||||
|
||||
__lwsync();
|
||||
originalValue = fetch_and_add( pw, -1 );
|
||||
__isync();
|
||||
|
||||
return (originalValue - 1);
|
||||
}
|
||||
|
||||
inline int32_t atomic_conditional_increment( int32_t * pw )
|
||||
{
|
||||
// if( *pw != 0 ) ++*pw;
|
||||
// return *pw;
|
||||
|
||||
int32_t tmp = fetch_and_add( pw, 0 );
|
||||
for( ;; )
|
||||
{
|
||||
if( tmp == 0 ) return 0;
|
||||
if( compare_and_swap( pw, &tmp, tmp + 1 ) ) return (tmp + 1);
|
||||
}
|
||||
}
|
||||
|
||||
class sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base( sp_counted_base const & );
|
||||
sp_counted_base & operator= ( sp_counted_base const & );
|
||||
|
||||
int32_t use_count_; // #shared
|
||||
int32_t weak_count_; // #weak + (#shared != 0)
|
||||
|
||||
public:
|
||||
|
||||
sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
|
||||
{
|
||||
}
|
||||
|
||||
virtual ~sp_counted_base() // nothrow
|
||||
{
|
||||
}
|
||||
|
||||
// dispose() is called when use_count_ drops to zero, to release
|
||||
// the resources managed by *this.
|
||||
|
||||
virtual void dispose() = 0; // nothrow
|
||||
|
||||
// destroy() is called when weak_count_ drops to zero.
|
||||
|
||||
virtual void destroy() // nothrow
|
||||
{
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
atomic_increment( &use_count_ );
|
||||
}
|
||||
|
||||
bool add_ref_lock() // true on success
|
||||
{
|
||||
return atomic_conditional_increment( &use_count_ ) != 0;
|
||||
}
|
||||
|
||||
void release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &use_count_ ) == 0 )
|
||||
{
|
||||
dispose();
|
||||
weak_release();
|
||||
}
|
||||
}
|
||||
|
||||
void weak_add_ref() // nothrow
|
||||
{
|
||||
atomic_increment( &weak_count_ );
|
||||
}
|
||||
|
||||
void weak_release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &weak_count_ ) == 0 )
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return fetch_and_add( const_cast<int32_t*>(&use_count_), 0 );
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_AIX_HPP_INCLUDED
|
||||
@@ -1,182 +0,0 @@
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_MIPS_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_BASE_GCC_MIPS_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_gcc_mips.hpp - g++ on MIPS
|
||||
//
|
||||
// Copyright (c) 2009, Spirent Communications, Inc.
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
//
|
||||
// Lock-free algorithm by Alexander Terekhov
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline void atomic_increment( int * pw )
|
||||
{
|
||||
// ++*pw;
|
||||
|
||||
int tmp;
|
||||
|
||||
__asm__ __volatile__
|
||||
(
|
||||
"0:\n\t"
|
||||
".set push\n\t"
|
||||
".set mips2\n\t"
|
||||
"ll %0, %1\n\t"
|
||||
"addiu %0, 1\n\t"
|
||||
"sc %0, %1\n\t"
|
||||
".set pop\n\t"
|
||||
"beqz %0, 0b":
|
||||
"=&r"( tmp ), "=m"( *pw ):
|
||||
"m"( *pw )
|
||||
);
|
||||
}
|
||||
|
||||
inline int atomic_decrement( int * pw )
|
||||
{
|
||||
// return --*pw;
|
||||
|
||||
int rv, tmp;
|
||||
|
||||
__asm__ __volatile__
|
||||
(
|
||||
"0:\n\t"
|
||||
".set push\n\t"
|
||||
".set mips2\n\t"
|
||||
"ll %1, %2\n\t"
|
||||
"addiu %0, %1, -1\n\t"
|
||||
"sc %0, %2\n\t"
|
||||
".set pop\n\t"
|
||||
"beqz %0, 0b\n\t"
|
||||
"addiu %0, %1, -1":
|
||||
"=&r"( rv ), "=&r"( tmp ), "=m"( *pw ):
|
||||
"m"( *pw ):
|
||||
"memory"
|
||||
);
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
inline int atomic_conditional_increment( int * pw )
|
||||
{
|
||||
// if( *pw != 0 ) ++*pw;
|
||||
// return *pw;
|
||||
|
||||
int rv, tmp;
|
||||
|
||||
__asm__ __volatile__
|
||||
(
|
||||
"0:\n\t"
|
||||
".set push\n\t"
|
||||
".set mips2\n\t"
|
||||
"ll %0, %2\n\t"
|
||||
"beqz %0, 1f\n\t"
|
||||
"addiu %1, %0, 1\n\t"
|
||||
"sc %1, %2\n\t"
|
||||
".set pop\n\t"
|
||||
"beqz %1, 0b\n\t"
|
||||
"addiu %0, %0, 1\n\t"
|
||||
"1:":
|
||||
"=&r"( rv ), "=&r"( tmp ), "=m"( *pw ):
|
||||
"m"( *pw ):
|
||||
"memory"
|
||||
);
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
class sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base( sp_counted_base const & );
|
||||
sp_counted_base & operator= ( sp_counted_base const & );
|
||||
|
||||
int use_count_; // #shared
|
||||
int weak_count_; // #weak + (#shared != 0)
|
||||
|
||||
public:
|
||||
|
||||
sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
|
||||
{
|
||||
}
|
||||
|
||||
virtual ~sp_counted_base() // nothrow
|
||||
{
|
||||
}
|
||||
|
||||
// dispose() is called when use_count_ drops to zero, to release
|
||||
// the resources managed by *this.
|
||||
|
||||
virtual void dispose() = 0; // nothrow
|
||||
|
||||
// destroy() is called when weak_count_ drops to zero.
|
||||
|
||||
virtual void destroy() // nothrow
|
||||
{
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
atomic_increment( &use_count_ );
|
||||
}
|
||||
|
||||
bool add_ref_lock() // true on success
|
||||
{
|
||||
return atomic_conditional_increment( &use_count_ ) != 0;
|
||||
}
|
||||
|
||||
void release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &use_count_ ) == 0 )
|
||||
{
|
||||
dispose();
|
||||
weak_release();
|
||||
}
|
||||
}
|
||||
|
||||
void weak_add_ref() // nothrow
|
||||
{
|
||||
atomic_increment( &weak_count_ );
|
||||
}
|
||||
|
||||
void weak_release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &weak_count_ ) == 0 )
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return static_cast<int const volatile &>( use_count_ );
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_MIPS_HPP_INCLUDED
|
||||
@@ -1,167 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_SPARC_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_SPARC_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
// detail/sp_counted_base_gcc_sparc.hpp - g++ on Sparc V8+
|
||||
//
|
||||
// Copyright (c) 2006 Piotr Wyderski
|
||||
// Copyright (c) 2006 Tomas Puverle
|
||||
// Copyright (c) 2006 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
//
|
||||
// Thanks to Michael van der Westhuizen
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <inttypes.h> // int32_t
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline int32_t compare_and_swap( int32_t * dest_, int32_t compare_, int32_t swap_ )
|
||||
{
|
||||
__asm__ __volatile__( "cas [%1], %2, %0"
|
||||
: "+r" (swap_)
|
||||
: "r" (dest_), "r" (compare_)
|
||||
: "memory" );
|
||||
|
||||
return swap_;
|
||||
}
|
||||
|
||||
inline int32_t atomic_fetch_and_add( int32_t * pw, int32_t dv )
|
||||
{
|
||||
// long r = *pw;
|
||||
// *pw += dv;
|
||||
// return r;
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
int32_t r = *pw;
|
||||
|
||||
if( __builtin_expect((compare_and_swap(pw, r, r + dv) == r), 1) )
|
||||
{
|
||||
return r;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
inline void atomic_increment( int32_t * pw )
|
||||
{
|
||||
atomic_fetch_and_add( pw, 1 );
|
||||
}
|
||||
|
||||
inline int32_t atomic_decrement( int32_t * pw )
|
||||
{
|
||||
return atomic_fetch_and_add( pw, -1 );
|
||||
}
|
||||
|
||||
inline int32_t atomic_conditional_increment( int32_t * pw )
|
||||
{
|
||||
// long r = *pw;
|
||||
// if( r != 0 ) ++*pw;
|
||||
// return r;
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
int32_t r = *pw;
|
||||
|
||||
if( r == 0 )
|
||||
{
|
||||
return r;
|
||||
}
|
||||
|
||||
if( __builtin_expect( ( compare_and_swap( pw, r, r + 1 ) == r ), 1 ) )
|
||||
{
|
||||
return r;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
class sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base( sp_counted_base const & );
|
||||
sp_counted_base & operator= ( sp_counted_base const & );
|
||||
|
||||
int32_t use_count_; // #shared
|
||||
int32_t weak_count_; // #weak + (#shared != 0)
|
||||
|
||||
public:
|
||||
|
||||
sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
|
||||
{
|
||||
}
|
||||
|
||||
virtual ~sp_counted_base() // nothrow
|
||||
{
|
||||
}
|
||||
|
||||
// dispose() is called when use_count_ drops to zero, to release
|
||||
// the resources managed by *this.
|
||||
|
||||
virtual void dispose() = 0; // nothrow
|
||||
|
||||
// destroy() is called when weak_count_ drops to zero.
|
||||
|
||||
virtual void destroy() // nothrow
|
||||
{
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
atomic_increment( &use_count_ );
|
||||
}
|
||||
|
||||
bool add_ref_lock() // true on success
|
||||
{
|
||||
return atomic_conditional_increment( &use_count_ ) != 0;
|
||||
}
|
||||
|
||||
void release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &use_count_ ) == 1 )
|
||||
{
|
||||
dispose();
|
||||
weak_release();
|
||||
}
|
||||
}
|
||||
|
||||
void weak_add_ref() // nothrow
|
||||
{
|
||||
atomic_increment( &weak_count_ );
|
||||
}
|
||||
|
||||
void weak_release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &weak_count_ ) == 1 )
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return const_cast< int32_t const volatile & >( use_count_ );
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_SPARC_HPP_INCLUDED
|
||||
@@ -1,162 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SNC_PS3_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SNC_PS3_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
// detail/sp_counted_base_gcc_sparc.hpp - g++ on Sparc V8+
|
||||
//
|
||||
// Copyright (c) 2006 Piotr Wyderski
|
||||
// Copyright (c) 2006 Tomas Puverle
|
||||
// Copyright (c) 2006 Peter Dimov
|
||||
// Copyright (c) 2011 Emil Dotchevski
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
//
|
||||
// Thanks to Michael van der Westhuizen
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <inttypes.h> // uint32_t
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline uint32_t compare_and_swap( uint32_t * dest_, uint32_t compare_, uint32_t swap_ )
|
||||
{
|
||||
return __builtin_cellAtomicCompareAndSwap32(dest_,compare_,swap_);
|
||||
}
|
||||
|
||||
inline uint32_t atomic_fetch_and_add( uint32_t * pw, uint32_t dv )
|
||||
{
|
||||
// long r = *pw;
|
||||
// *pw += dv;
|
||||
// return r;
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
uint32_t r = *pw;
|
||||
|
||||
if( __builtin_expect((compare_and_swap(pw, r, r + dv) == r), 1) )
|
||||
{
|
||||
return r;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
inline void atomic_increment( uint32_t * pw )
|
||||
{
|
||||
(void) __builtin_cellAtomicIncr32( pw );
|
||||
}
|
||||
|
||||
inline uint32_t atomic_decrement( uint32_t * pw )
|
||||
{
|
||||
return __builtin_cellAtomicDecr32( pw );
|
||||
}
|
||||
|
||||
inline uint32_t atomic_conditional_increment( uint32_t * pw )
|
||||
{
|
||||
// long r = *pw;
|
||||
// if( r != 0 ) ++*pw;
|
||||
// return r;
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
uint32_t r = *pw;
|
||||
|
||||
if( r == 0 )
|
||||
{
|
||||
return r;
|
||||
}
|
||||
|
||||
if( __builtin_expect( ( compare_and_swap( pw, r, r + 1 ) == r ), 1 ) )
|
||||
{
|
||||
return r;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
class sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base( sp_counted_base const & );
|
||||
sp_counted_base & operator= ( sp_counted_base const & );
|
||||
|
||||
uint32_t use_count_; // #shared
|
||||
uint32_t weak_count_; // #weak + (#shared != 0)
|
||||
|
||||
public:
|
||||
|
||||
sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
|
||||
{
|
||||
}
|
||||
|
||||
virtual ~sp_counted_base() // nothrow
|
||||
{
|
||||
}
|
||||
|
||||
// dispose() is called when use_count_ drops to zero, to release
|
||||
// the resources managed by *this.
|
||||
|
||||
virtual void dispose() = 0; // nothrow
|
||||
|
||||
// destroy() is called when weak_count_ drops to zero.
|
||||
|
||||
virtual void destroy() // nothrow
|
||||
{
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
atomic_increment( &use_count_ );
|
||||
}
|
||||
|
||||
bool add_ref_lock() // true on success
|
||||
{
|
||||
return atomic_conditional_increment( &use_count_ ) != 0;
|
||||
}
|
||||
|
||||
void release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &use_count_ ) == 1 )
|
||||
{
|
||||
dispose();
|
||||
weak_release();
|
||||
}
|
||||
}
|
||||
|
||||
void weak_add_ref() // nothrow
|
||||
{
|
||||
atomic_increment( &weak_count_ );
|
||||
}
|
||||
|
||||
void weak_release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &weak_count_ ) == 1 )
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return const_cast< uint32_t const volatile & >( use_count_ );
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SNC_PS3_HPP_INCLUDED
|
||||
@@ -1,114 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_solaris.hpp
|
||||
// based on: detail/sp_counted_base_w32.hpp
|
||||
//
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
|
||||
// Copyright 2004-2005 Peter Dimov
|
||||
// Copyright 2006 Michael van der Westhuizen
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
//
|
||||
// Lock-free algorithm by Alexander Terekhov
|
||||
//
|
||||
// Thanks to Ben Hitchings for the #weak + (#shared != 0)
|
||||
// formulation
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <atomic.h>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base( sp_counted_base const & );
|
||||
sp_counted_base & operator= ( sp_counted_base const & );
|
||||
|
||||
uint32_t use_count_; // #shared
|
||||
uint32_t weak_count_; // #weak + (#shared != 0)
|
||||
|
||||
public:
|
||||
|
||||
sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
|
||||
{
|
||||
}
|
||||
|
||||
virtual ~sp_counted_base() // nothrow
|
||||
{
|
||||
}
|
||||
|
||||
// dispose() is called when use_count_ drops to zero, to release
|
||||
// the resources managed by *this.
|
||||
|
||||
virtual void dispose() = 0; // nothrow
|
||||
|
||||
// destroy() is called when weak_count_ drops to zero.
|
||||
|
||||
virtual void destroy() // nothrow
|
||||
{
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
atomic_inc_32( &use_count_ );
|
||||
}
|
||||
|
||||
bool add_ref_lock() // true on success
|
||||
{
|
||||
for( ;; )
|
||||
{
|
||||
uint32_t tmp = static_cast< uint32_t const volatile& >( use_count_ );
|
||||
if( tmp == 0 ) return false;
|
||||
if( atomic_cas_32( &use_count_, tmp, tmp + 1 ) == tmp ) return true;
|
||||
}
|
||||
}
|
||||
|
||||
void release() // nothrow
|
||||
{
|
||||
if( atomic_dec_32_nv( &use_count_ ) == 0 )
|
||||
{
|
||||
dispose();
|
||||
weak_release();
|
||||
}
|
||||
}
|
||||
|
||||
void weak_add_ref() // nothrow
|
||||
{
|
||||
atomic_inc_32( &weak_count_ );
|
||||
}
|
||||
|
||||
void weak_release() // nothrow
|
||||
{
|
||||
if( atomic_dec_32_nv( &weak_count_ ) == 0 )
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return static_cast<long const volatile &>( use_count_ );
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED
|
||||
@@ -1,132 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SPIN_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SPIN_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_spin.hpp - spinlock pool atomic emulation
|
||||
//
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
|
||||
// Copyright 2004-2008 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <boost/smart_ptr/detail/spinlock_pool.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline int atomic_exchange_and_add( int * pw, int dv )
|
||||
{
|
||||
spinlock_pool<1>::scoped_lock lock( pw );
|
||||
|
||||
int r = *pw;
|
||||
*pw += dv;
|
||||
return r;
|
||||
}
|
||||
|
||||
inline void atomic_increment( int * pw )
|
||||
{
|
||||
spinlock_pool<1>::scoped_lock lock( pw );
|
||||
++*pw;
|
||||
}
|
||||
|
||||
inline int atomic_conditional_increment( int * pw )
|
||||
{
|
||||
spinlock_pool<1>::scoped_lock lock( pw );
|
||||
|
||||
int rv = *pw;
|
||||
if( rv != 0 ) ++*pw;
|
||||
return rv;
|
||||
}
|
||||
|
||||
class sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base( sp_counted_base const & );
|
||||
sp_counted_base & operator= ( sp_counted_base const & );
|
||||
|
||||
int use_count_; // #shared
|
||||
int weak_count_; // #weak + (#shared != 0)
|
||||
|
||||
public:
|
||||
|
||||
sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
|
||||
{
|
||||
}
|
||||
|
||||
virtual ~sp_counted_base() // nothrow
|
||||
{
|
||||
}
|
||||
|
||||
// dispose() is called when use_count_ drops to zero, to release
|
||||
// the resources managed by *this.
|
||||
|
||||
virtual void dispose() = 0; // nothrow
|
||||
|
||||
// destroy() is called when weak_count_ drops to zero.
|
||||
|
||||
virtual void destroy() // nothrow
|
||||
{
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
atomic_increment( &use_count_ );
|
||||
}
|
||||
|
||||
bool add_ref_lock() // true on success
|
||||
{
|
||||
return atomic_conditional_increment( &use_count_ ) != 0;
|
||||
}
|
||||
|
||||
void release() // nothrow
|
||||
{
|
||||
if( atomic_exchange_and_add( &use_count_, -1 ) == 1 )
|
||||
{
|
||||
dispose();
|
||||
weak_release();
|
||||
}
|
||||
}
|
||||
|
||||
void weak_add_ref() // nothrow
|
||||
{
|
||||
atomic_increment( &weak_count_ );
|
||||
}
|
||||
|
||||
void weak_release() // nothrow
|
||||
{
|
||||
if( atomic_exchange_and_add( &weak_count_, -1 ) == 1 )
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
spinlock_pool<1>::scoped_lock lock( &use_count_ );
|
||||
return use_count_;
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SPIN_HPP_INCLUDED
|
||||
@@ -1,156 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SYNC_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SYNC_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
// detail/sp_counted_base_sync.hpp - g++ 4.1+ __sync intrinsics
|
||||
//
|
||||
// Copyright (c) 2007 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <limits.h>
|
||||
|
||||
#if defined( __ia64__ ) && defined( __INTEL_COMPILER )
|
||||
# include <ia64intrin.h>
|
||||
#endif
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
#if INT_MAX >= 2147483647
|
||||
|
||||
typedef int sp_int32_t;
|
||||
|
||||
#else
|
||||
|
||||
typedef long sp_int32_t;
|
||||
|
||||
#endif
|
||||
|
||||
inline void atomic_increment( sp_int32_t * pw )
|
||||
{
|
||||
__sync_fetch_and_add( pw, 1 );
|
||||
}
|
||||
|
||||
inline sp_int32_t atomic_decrement( sp_int32_t * pw )
|
||||
{
|
||||
return __sync_fetch_and_add( pw, -1 );
|
||||
}
|
||||
|
||||
inline sp_int32_t atomic_conditional_increment( sp_int32_t * pw )
|
||||
{
|
||||
// long r = *pw;
|
||||
// if( r != 0 ) ++*pw;
|
||||
// return r;
|
||||
|
||||
sp_int32_t r = *pw;
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
if( r == 0 )
|
||||
{
|
||||
return r;
|
||||
}
|
||||
|
||||
sp_int32_t r2 = __sync_val_compare_and_swap( pw, r, r + 1 );
|
||||
|
||||
if( r2 == r )
|
||||
{
|
||||
return r;
|
||||
}
|
||||
else
|
||||
{
|
||||
r = r2;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
class sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base( sp_counted_base const & );
|
||||
sp_counted_base & operator= ( sp_counted_base const & );
|
||||
|
||||
sp_int32_t use_count_; // #shared
|
||||
sp_int32_t weak_count_; // #weak + (#shared != 0)
|
||||
|
||||
public:
|
||||
|
||||
sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
|
||||
{
|
||||
}
|
||||
|
||||
virtual ~sp_counted_base() // nothrow
|
||||
{
|
||||
}
|
||||
|
||||
// dispose() is called when use_count_ drops to zero, to release
|
||||
// the resources managed by *this.
|
||||
|
||||
virtual void dispose() = 0; // nothrow
|
||||
|
||||
// destroy() is called when weak_count_ drops to zero.
|
||||
|
||||
virtual void destroy() // nothrow
|
||||
{
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
atomic_increment( &use_count_ );
|
||||
}
|
||||
|
||||
bool add_ref_lock() // true on success
|
||||
{
|
||||
return atomic_conditional_increment( &use_count_ ) != 0;
|
||||
}
|
||||
|
||||
void release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &use_count_ ) == 1 )
|
||||
{
|
||||
dispose();
|
||||
weak_release();
|
||||
}
|
||||
}
|
||||
|
||||
void weak_add_ref() // nothrow
|
||||
{
|
||||
atomic_increment( &weak_count_ );
|
||||
}
|
||||
|
||||
void weak_release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &weak_count_ ) == 1 )
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return const_cast< sp_int32_t const volatile & >( use_count_ );
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SYNC_HPP_INCLUDED
|
||||
@@ -1,151 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_VACPP_PPC_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_VACPP_PPC_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_vacpp_ppc.hpp - xlC(vacpp) on POWER
|
||||
// based on: detail/sp_counted_base_w32.hpp
|
||||
//
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
|
||||
// Copyright 2004-2005 Peter Dimov
|
||||
// Copyright 2006 Michael van der Westhuizen
|
||||
// Copyright 2012 IBM Corp.
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
//
|
||||
// Lock-free algorithm by Alexander Terekhov
|
||||
//
|
||||
// Thanks to Ben Hitchings for the #weak + (#shared != 0)
|
||||
// formulation
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
|
||||
extern "builtin" void __lwsync(void);
|
||||
extern "builtin" void __isync(void);
|
||||
extern "builtin" int __fetch_and_add(volatile int* addr, int val);
|
||||
extern "builtin" int __compare_and_swap(volatile int*, int*, int);
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline void atomic_increment( int *pw )
|
||||
{
|
||||
// ++*pw;
|
||||
__lwsync();
|
||||
__fetch_and_add(pw, 1);
|
||||
__isync();
|
||||
}
|
||||
|
||||
inline int atomic_decrement( int *pw )
|
||||
{
|
||||
// return --*pw;
|
||||
__lwsync();
|
||||
int originalValue = __fetch_and_add(pw, -1);
|
||||
__isync();
|
||||
|
||||
return (originalValue - 1);
|
||||
}
|
||||
|
||||
inline int atomic_conditional_increment( int *pw )
|
||||
{
|
||||
// if( *pw != 0 ) ++*pw;
|
||||
// return *pw;
|
||||
|
||||
__lwsync();
|
||||
int v = *const_cast<volatile int*>(pw);
|
||||
for (;;)
|
||||
// loop until state is known
|
||||
{
|
||||
if (v == 0) return 0;
|
||||
if (__compare_and_swap(pw, &v, v + 1))
|
||||
{
|
||||
__isync(); return (v + 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
class sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base( sp_counted_base const & );
|
||||
sp_counted_base & operator= ( sp_counted_base const & );
|
||||
|
||||
int use_count_; // #shared
|
||||
int weak_count_; // #weak + (#shared != 0)
|
||||
char pad[64] __attribute__((__aligned__(64)));
|
||||
// pad to prevent false sharing
|
||||
public:
|
||||
|
||||
sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
|
||||
{
|
||||
}
|
||||
|
||||
virtual ~sp_counted_base() // nothrow
|
||||
{
|
||||
}
|
||||
|
||||
// dispose() is called when use_count_ drops to zero, to release
|
||||
// the resources managed by *this.
|
||||
|
||||
virtual void dispose() = 0; // nothrow
|
||||
|
||||
// destroy() is called when weak_count_ drops to zero.
|
||||
|
||||
virtual void destroy() // nothrow
|
||||
{
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter( sp_typeinfo const & ti ) = 0;
|
||||
virtual void * get_untyped_deleter() = 0;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
atomic_increment( &use_count_ );
|
||||
}
|
||||
|
||||
bool add_ref_lock() // true on success
|
||||
{
|
||||
return atomic_conditional_increment( &use_count_ ) != 0;
|
||||
}
|
||||
|
||||
void release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &use_count_ ) == 0 )
|
||||
{
|
||||
dispose();
|
||||
weak_release();
|
||||
}
|
||||
}
|
||||
|
||||
void weak_add_ref() // nothrow
|
||||
{
|
||||
atomic_increment( &weak_count_ );
|
||||
}
|
||||
|
||||
void weak_release() // nothrow
|
||||
{
|
||||
if( atomic_decrement( &weak_count_ ) == 0 )
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return *const_cast<volatile int*>(&use_count_);
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_VACPP_PPC_HPP_INCLUDED
|
||||
@@ -1,39 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_FORWARD_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_FORWARD_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
// detail/sp_forward.hpp
|
||||
//
|
||||
// Copyright 2008,2012 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
|
||||
|
||||
template< class T > T&& sp_forward( T & t ) BOOST_NOEXCEPT
|
||||
{
|
||||
return static_cast< T&& >( t );
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_FORWARD_HPP_INCLUDED
|
||||
@@ -1,69 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_HAS_SYNC_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_HAS_SYNC_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// boost/smart_ptr/detail/sp_has_sync.hpp
|
||||
//
|
||||
// Copyright (c) 2008, 2009 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// Defines the BOOST_SP_HAS_SYNC macro if the __sync_* intrinsics
|
||||
// are available.
|
||||
//
|
||||
|
||||
#ifndef BOOST_SP_NO_SYNC
|
||||
|
||||
#if defined( __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 )
|
||||
|
||||
# define BOOST_SP_HAS_SYNC
|
||||
|
||||
#elif defined( __IBMCPP__ ) && ( __IBMCPP__ >= 1210 )
|
||||
|
||||
# define BOOST_SP_HAS_SYNC
|
||||
|
||||
#elif defined( __GNUC__ ) && ( __GNUC__ * 100 + __GNUC_MINOR__ >= 401 )
|
||||
|
||||
#define BOOST_SP_HAS_SYNC
|
||||
|
||||
#if defined( __arm__ ) || defined( __armel__ )
|
||||
#undef BOOST_SP_HAS_SYNC
|
||||
#endif
|
||||
|
||||
#if defined( __hppa ) || defined( __hppa__ )
|
||||
#undef BOOST_SP_HAS_SYNC
|
||||
#endif
|
||||
|
||||
#if defined( __m68k__ )
|
||||
#undef BOOST_SP_HAS_SYNC
|
||||
#endif
|
||||
|
||||
#if defined( __sh__ )
|
||||
#undef BOOST_SP_HAS_SYNC
|
||||
#endif
|
||||
|
||||
#if defined( __sparc__ )
|
||||
#undef BOOST_SP_HAS_SYNC
|
||||
#endif
|
||||
|
||||
#if defined( __INTEL_COMPILER ) && !defined( __ia64__ ) && ( __INTEL_COMPILER < 1110 )
|
||||
#undef BOOST_SP_HAS_SYNC
|
||||
#endif
|
||||
|
||||
#if defined(__PATHSCALE__) && ((__PATHCC__ == 4) && (__PATHCC_MINOR__ < 9))
|
||||
#undef BOOST_SP_HAS_SYNC
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_SP_NO_SYNC
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_HAS_SYNC_HPP_INCLUDED
|
||||
@@ -1,31 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2012 Glen Joseph Fernandes
|
||||
* glenfe at live dot com
|
||||
*
|
||||
* Distributed under the Boost Software License,
|
||||
* Version 1.0. (See accompanying file LICENSE_1_0.txt
|
||||
* or copy at http://boost.org/LICENSE_1_0.txt)
|
||||
*/
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_IF_ARRAY_HPP
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_IF_ARRAY_HPP
|
||||
|
||||
#include <boost/smart_ptr/shared_ptr.hpp>
|
||||
|
||||
namespace boost {
|
||||
namespace detail {
|
||||
template<typename T>
|
||||
struct sp_if_array;
|
||||
template<typename T>
|
||||
struct sp_if_array<T[]> {
|
||||
typedef boost::shared_ptr<T[]> type;
|
||||
};
|
||||
template<typename T>
|
||||
struct sp_if_size_array;
|
||||
template<typename T, std::size_t N>
|
||||
struct sp_if_size_array<T[N]> {
|
||||
typedef boost::shared_ptr<T[N]> type;
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -1,45 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SP_NULLPTR_T_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SP_NULLPTR_T_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
// detail/sp_nullptr_t.hpp
|
||||
//
|
||||
// Copyright 2013 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
|
||||
#include <boost/config.hpp>
|
||||
#include <cstddef>
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_NULLPTR )
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
#if defined( __clang__ ) && !defined( _LIBCPP_VERSION ) && !defined( BOOST_NO_CXX11_DECLTYPE )
|
||||
|
||||
typedef decltype(nullptr) sp_nullptr_t;
|
||||
|
||||
#else
|
||||
|
||||
typedef std::nullptr_t sp_nullptr_t;
|
||||
|
||||
#endif
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // !defined( BOOST_NO_CXX11_NULLPTR )
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_NULLPTR_T_HPP_INCLUDED
|
||||
@@ -1,56 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SPINLOCK_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// boost/detail/spinlock.hpp
|
||||
//
|
||||
// Copyright (c) 2008 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// struct spinlock
|
||||
// {
|
||||
// void lock();
|
||||
// bool try_lock();
|
||||
// void unlock();
|
||||
//
|
||||
// class scoped_lock;
|
||||
// };
|
||||
//
|
||||
// #define BOOST_DETAIL_SPINLOCK_INIT <unspecified>
|
||||
//
|
||||
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_has_sync.hpp>
|
||||
|
||||
#if defined( BOOST_SP_USE_PTHREADS )
|
||||
# include <boost/smart_ptr/detail/spinlock_pt.hpp>
|
||||
|
||||
#elif defined(__GNUC__) && defined( __arm__ ) && !defined( __thumb__ )
|
||||
# include <boost/smart_ptr/detail/spinlock_gcc_arm.hpp>
|
||||
|
||||
#elif defined( BOOST_SP_HAS_SYNC )
|
||||
# include <boost/smart_ptr/detail/spinlock_sync.hpp>
|
||||
|
||||
#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
|
||||
# include <boost/smart_ptr/detail/spinlock_w32.hpp>
|
||||
|
||||
#elif defined(BOOST_HAS_PTHREADS)
|
||||
# include <boost/smart_ptr/detail/spinlock_pt.hpp>
|
||||
|
||||
#elif !defined(BOOST_HAS_THREADS)
|
||||
# include <boost/smart_ptr/detail/spinlock_nt.hpp>
|
||||
|
||||
#else
|
||||
# error Unrecognized threading platform
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_HPP_INCLUDED
|
||||
@@ -1,120 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_GCC_ARM_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SPINLOCK_GCC_ARM_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// Copyright (c) 2008, 2011 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#include <boost/smart_ptr/detail/yield_k.hpp>
|
||||
|
||||
#if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_7S__)
|
||||
|
||||
# define BOOST_SP_ARM_BARRIER "dmb"
|
||||
# define BOOST_SP_ARM_HAS_LDREX
|
||||
|
||||
#elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__)
|
||||
|
||||
# define BOOST_SP_ARM_BARRIER "mcr p15, 0, r0, c7, c10, 5"
|
||||
# define BOOST_SP_ARM_HAS_LDREX
|
||||
|
||||
#else
|
||||
|
||||
# define BOOST_SP_ARM_BARRIER ""
|
||||
|
||||
#endif
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class spinlock
|
||||
{
|
||||
public:
|
||||
|
||||
int v_;
|
||||
|
||||
public:
|
||||
|
||||
bool try_lock()
|
||||
{
|
||||
int r;
|
||||
|
||||
#ifdef BOOST_SP_ARM_HAS_LDREX
|
||||
|
||||
__asm__ __volatile__(
|
||||
"ldrex %0, [%2]; \n"
|
||||
"cmp %0, %1; \n"
|
||||
"strexne %0, %1, [%2]; \n"
|
||||
BOOST_SP_ARM_BARRIER :
|
||||
"=&r"( r ): // outputs
|
||||
"r"( 1 ), "r"( &v_ ): // inputs
|
||||
"memory", "cc" );
|
||||
|
||||
#else
|
||||
|
||||
__asm__ __volatile__(
|
||||
"swp %0, %1, [%2];\n"
|
||||
BOOST_SP_ARM_BARRIER :
|
||||
"=&r"( r ): // outputs
|
||||
"r"( 1 ), "r"( &v_ ): // inputs
|
||||
"memory", "cc" );
|
||||
|
||||
#endif
|
||||
|
||||
return r == 0;
|
||||
}
|
||||
|
||||
void lock()
|
||||
{
|
||||
for( unsigned k = 0; !try_lock(); ++k )
|
||||
{
|
||||
boost::detail::yield( k );
|
||||
}
|
||||
}
|
||||
|
||||
void unlock()
|
||||
{
|
||||
__asm__ __volatile__( BOOST_SP_ARM_BARRIER ::: "memory" );
|
||||
*const_cast< int volatile* >( &v_ ) = 0;
|
||||
}
|
||||
|
||||
public:
|
||||
|
||||
class scoped_lock
|
||||
{
|
||||
private:
|
||||
|
||||
spinlock & sp_;
|
||||
|
||||
scoped_lock( scoped_lock const & );
|
||||
scoped_lock & operator=( scoped_lock const & );
|
||||
|
||||
public:
|
||||
|
||||
explicit scoped_lock( spinlock & sp ): sp_( sp )
|
||||
{
|
||||
sp.lock();
|
||||
}
|
||||
|
||||
~scoped_lock()
|
||||
{
|
||||
sp_.unlock();
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
} // namespace boost
|
||||
|
||||
#define BOOST_DETAIL_SPINLOCK_INIT {0}
|
||||
|
||||
#undef BOOST_SP_ARM_BARRIER
|
||||
#undef BOOST_SP_ARM_HAS_LDREX
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_GCC_ARM_HPP_INCLUDED
|
||||
@@ -1,89 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_NT_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SPINLOCK_NT_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// Copyright (c) 2008 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#include <boost/assert.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class spinlock
|
||||
{
|
||||
public:
|
||||
|
||||
bool locked_;
|
||||
|
||||
public:
|
||||
|
||||
inline bool try_lock()
|
||||
{
|
||||
if( locked_ )
|
||||
{
|
||||
return false;
|
||||
}
|
||||
else
|
||||
{
|
||||
locked_ = true;
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
inline void lock()
|
||||
{
|
||||
BOOST_ASSERT( !locked_ );
|
||||
locked_ = true;
|
||||
}
|
||||
|
||||
inline void unlock()
|
||||
{
|
||||
BOOST_ASSERT( locked_ );
|
||||
locked_ = false;
|
||||
}
|
||||
|
||||
public:
|
||||
|
||||
class scoped_lock
|
||||
{
|
||||
private:
|
||||
|
||||
spinlock & sp_;
|
||||
|
||||
scoped_lock( scoped_lock const & );
|
||||
scoped_lock & operator=( scoped_lock const & );
|
||||
|
||||
public:
|
||||
|
||||
explicit scoped_lock( spinlock & sp ): sp_( sp )
|
||||
{
|
||||
sp.lock();
|
||||
}
|
||||
|
||||
~scoped_lock()
|
||||
{
|
||||
sp_.unlock();
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
} // namespace boost
|
||||
|
||||
#define BOOST_DETAIL_SPINLOCK_INIT { false }
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_NT_HPP_INCLUDED
|
||||
@@ -1,91 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_POOL_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SPINLOCK_POOL_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// boost/detail/spinlock_pool.hpp
|
||||
//
|
||||
// Copyright (c) 2008 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// spinlock_pool<0> is reserved for atomic<>, when/if it arrives
|
||||
// spinlock_pool<1> is reserved for shared_ptr reference counts
|
||||
// spinlock_pool<2> is reserved for shared_ptr atomic access
|
||||
//
|
||||
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/smart_ptr/detail/spinlock.hpp>
|
||||
#include <cstddef>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
template< int I > class spinlock_pool
|
||||
{
|
||||
private:
|
||||
|
||||
static spinlock pool_[ 41 ];
|
||||
|
||||
public:
|
||||
|
||||
static spinlock & spinlock_for( void const * pv )
|
||||
{
|
||||
#if defined(__VMS) && __INITIAL_POINTER_SIZE == 64
|
||||
std::size_t i = reinterpret_cast< unsigned long long >( pv ) % 41;
|
||||
#else
|
||||
std::size_t i = reinterpret_cast< std::size_t >( pv ) % 41;
|
||||
#endif
|
||||
return pool_[ i ];
|
||||
}
|
||||
|
||||
class scoped_lock
|
||||
{
|
||||
private:
|
||||
|
||||
spinlock & sp_;
|
||||
|
||||
scoped_lock( scoped_lock const & );
|
||||
scoped_lock & operator=( scoped_lock const & );
|
||||
|
||||
public:
|
||||
|
||||
explicit scoped_lock( void const * pv ): sp_( spinlock_for( pv ) )
|
||||
{
|
||||
sp_.lock();
|
||||
}
|
||||
|
||||
~scoped_lock()
|
||||
{
|
||||
sp_.unlock();
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
template< int I > spinlock spinlock_pool< I >::pool_[ 41 ] =
|
||||
{
|
||||
BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT,
|
||||
BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT,
|
||||
BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT,
|
||||
BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT,
|
||||
BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT,
|
||||
BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT,
|
||||
BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT,
|
||||
BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT, BOOST_DETAIL_SPINLOCK_INIT,
|
||||
BOOST_DETAIL_SPINLOCK_INIT
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_POOL_HPP_INCLUDED
|
||||
@@ -1,79 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_PT_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SPINLOCK_PT_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// Copyright (c) 2008 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#include <pthread.h>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class spinlock
|
||||
{
|
||||
public:
|
||||
|
||||
pthread_mutex_t v_;
|
||||
|
||||
public:
|
||||
|
||||
bool try_lock()
|
||||
{
|
||||
return pthread_mutex_trylock( &v_ ) == 0;
|
||||
}
|
||||
|
||||
void lock()
|
||||
{
|
||||
pthread_mutex_lock( &v_ );
|
||||
}
|
||||
|
||||
void unlock()
|
||||
{
|
||||
pthread_mutex_unlock( &v_ );
|
||||
}
|
||||
|
||||
public:
|
||||
|
||||
class scoped_lock
|
||||
{
|
||||
private:
|
||||
|
||||
spinlock & sp_;
|
||||
|
||||
scoped_lock( scoped_lock const & );
|
||||
scoped_lock & operator=( scoped_lock const & );
|
||||
|
||||
public:
|
||||
|
||||
explicit scoped_lock( spinlock & sp ): sp_( sp )
|
||||
{
|
||||
sp.lock();
|
||||
}
|
||||
|
||||
~scoped_lock()
|
||||
{
|
||||
sp_.unlock();
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
} // namespace boost
|
||||
|
||||
#define BOOST_DETAIL_SPINLOCK_INIT { PTHREAD_MUTEX_INITIALIZER }
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_PT_HPP_INCLUDED
|
||||
@@ -1,87 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_SYNC_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SPINLOCK_SYNC_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// Copyright (c) 2008 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#include <boost/smart_ptr/detail/yield_k.hpp>
|
||||
|
||||
#if defined( __ia64__ ) && defined( __INTEL_COMPILER )
|
||||
# include <ia64intrin.h>
|
||||
#endif
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class spinlock
|
||||
{
|
||||
public:
|
||||
|
||||
int v_;
|
||||
|
||||
public:
|
||||
|
||||
bool try_lock()
|
||||
{
|
||||
int r = __sync_lock_test_and_set( &v_, 1 );
|
||||
return r == 0;
|
||||
}
|
||||
|
||||
void lock()
|
||||
{
|
||||
for( unsigned k = 0; !try_lock(); ++k )
|
||||
{
|
||||
boost::detail::yield( k );
|
||||
}
|
||||
}
|
||||
|
||||
void unlock()
|
||||
{
|
||||
__sync_lock_release( &v_ );
|
||||
}
|
||||
|
||||
public:
|
||||
|
||||
class scoped_lock
|
||||
{
|
||||
private:
|
||||
|
||||
spinlock & sp_;
|
||||
|
||||
scoped_lock( scoped_lock const & );
|
||||
scoped_lock & operator=( scoped_lock const & );
|
||||
|
||||
public:
|
||||
|
||||
explicit scoped_lock( spinlock & sp ): sp_( sp )
|
||||
{
|
||||
sp.lock();
|
||||
}
|
||||
|
||||
~scoped_lock()
|
||||
{
|
||||
sp_.unlock();
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
} // namespace boost
|
||||
|
||||
#define BOOST_DETAIL_SPINLOCK_INIT {0}
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_SYNC_HPP_INCLUDED
|
||||
@@ -1,113 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_W32_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_SPINLOCK_W32_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// Copyright (c) 2008 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
|
||||
#include <boost/detail/interlocked.hpp>
|
||||
#include <boost/smart_ptr/detail/yield_k.hpp>
|
||||
|
||||
// BOOST_COMPILER_FENCE
|
||||
|
||||
#if defined(__INTEL_COMPILER)
|
||||
|
||||
#define BOOST_COMPILER_FENCE __memory_barrier();
|
||||
|
||||
#elif defined( _MSC_VER ) && _MSC_VER >= 1310
|
||||
|
||||
extern "C" void _ReadWriteBarrier();
|
||||
#pragma intrinsic( _ReadWriteBarrier )
|
||||
|
||||
#define BOOST_COMPILER_FENCE _ReadWriteBarrier();
|
||||
|
||||
#elif defined(__GNUC__)
|
||||
|
||||
#define BOOST_COMPILER_FENCE __asm__ __volatile__( "" : : : "memory" );
|
||||
|
||||
#else
|
||||
|
||||
#define BOOST_COMPILER_FENCE
|
||||
|
||||
#endif
|
||||
|
||||
//
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class spinlock
|
||||
{
|
||||
public:
|
||||
|
||||
long v_;
|
||||
|
||||
public:
|
||||
|
||||
bool try_lock()
|
||||
{
|
||||
long r = BOOST_INTERLOCKED_EXCHANGE( &v_, 1 );
|
||||
|
||||
BOOST_COMPILER_FENCE
|
||||
|
||||
return r == 0;
|
||||
}
|
||||
|
||||
void lock()
|
||||
{
|
||||
for( unsigned k = 0; !try_lock(); ++k )
|
||||
{
|
||||
boost::detail::yield( k );
|
||||
}
|
||||
}
|
||||
|
||||
void unlock()
|
||||
{
|
||||
BOOST_COMPILER_FENCE
|
||||
*const_cast< long volatile* >( &v_ ) = 0;
|
||||
}
|
||||
|
||||
public:
|
||||
|
||||
class scoped_lock
|
||||
{
|
||||
private:
|
||||
|
||||
spinlock & sp_;
|
||||
|
||||
scoped_lock( scoped_lock const & );
|
||||
scoped_lock & operator=( scoped_lock const & );
|
||||
|
||||
public:
|
||||
|
||||
explicit scoped_lock( spinlock & sp ): sp_( sp )
|
||||
{
|
||||
sp.lock();
|
||||
}
|
||||
|
||||
~scoped_lock()
|
||||
{
|
||||
sp_.unlock();
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
} // namespace boost
|
||||
|
||||
#define BOOST_DETAIL_SPINLOCK_INIT {0}
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_W32_HPP_INCLUDED
|
||||
@@ -1,149 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_DETAIL_YIELD_K_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_DETAIL_YIELD_K_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// yield_k.hpp
|
||||
//
|
||||
// Copyright (c) 2008 Peter Dimov
|
||||
//
|
||||
// void yield( unsigned k );
|
||||
//
|
||||
// Typical use:
|
||||
//
|
||||
// for( unsigned k = 0; !try_lock(); ++k ) yield( k );
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
//
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
// BOOST_SMT_PAUSE
|
||||
|
||||
#if defined(_MSC_VER) && _MSC_VER >= 1310 && ( defined(_M_IX86) || defined(_M_X64) )
|
||||
|
||||
extern "C" void _mm_pause();
|
||||
#pragma intrinsic( _mm_pause )
|
||||
|
||||
#define BOOST_SMT_PAUSE _mm_pause();
|
||||
|
||||
#elif defined(__GNUC__) && ( defined(__i386__) || defined(__x86_64__) )
|
||||
|
||||
#define BOOST_SMT_PAUSE __asm__ __volatile__( "rep; nop" : : : "memory" );
|
||||
|
||||
#endif
|
||||
|
||||
//
|
||||
|
||||
#if defined( WIN32 ) || defined( _WIN32 ) || defined( __WIN32__ ) || defined( __CYGWIN__ )
|
||||
|
||||
#if defined( BOOST_USE_WINDOWS_H )
|
||||
# include <windows.h>
|
||||
#endif
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
#if !defined( BOOST_USE_WINDOWS_H )
|
||||
extern "C" void __stdcall Sleep( unsigned long ms );
|
||||
#endif
|
||||
|
||||
inline void yield( unsigned k )
|
||||
{
|
||||
if( k < 4 )
|
||||
{
|
||||
}
|
||||
#if defined( BOOST_SMT_PAUSE )
|
||||
else if( k < 16 )
|
||||
{
|
||||
BOOST_SMT_PAUSE
|
||||
}
|
||||
#endif
|
||||
else if( k < 32 )
|
||||
{
|
||||
Sleep( 0 );
|
||||
}
|
||||
else
|
||||
{
|
||||
Sleep( 1 );
|
||||
}
|
||||
}
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#elif defined( BOOST_HAS_PTHREADS )
|
||||
|
||||
#include <sched.h>
|
||||
#include <time.h>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline void yield( unsigned k )
|
||||
{
|
||||
if( k < 4 )
|
||||
{
|
||||
}
|
||||
#if defined( BOOST_SMT_PAUSE )
|
||||
else if( k < 16 )
|
||||
{
|
||||
BOOST_SMT_PAUSE
|
||||
}
|
||||
#endif
|
||||
else if( k < 32 || k & 1 )
|
||||
{
|
||||
sched_yield();
|
||||
}
|
||||
else
|
||||
{
|
||||
// g++ -Wextra warns on {} or {0}
|
||||
struct timespec rqtp = { 0, 0 };
|
||||
|
||||
// POSIX says that timespec has tv_sec and tv_nsec
|
||||
// But it doesn't guarantee order or placement
|
||||
|
||||
rqtp.tv_sec = 0;
|
||||
rqtp.tv_nsec = 1000;
|
||||
|
||||
nanosleep( &rqtp, 0 );
|
||||
}
|
||||
}
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#else
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline void yield( unsigned )
|
||||
{
|
||||
}
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_DETAIL_YIELD_K_HPP_INCLUDED
|
||||
@@ -1,144 +0,0 @@
|
||||
#ifndef BOOST_ENABLE_SHARED_FROM_RAW_HPP_INCLUDED
|
||||
#define BOOST_ENABLE_SHARED_FROM_RAW_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// enable_shared_from_raw.hpp
|
||||
//
|
||||
// Copyright 2002, 2009 Peter Dimov
|
||||
// Copyright 2008-2009 Frank Mori Hess
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
//
|
||||
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
#include <boost/weak_ptr.hpp>
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
template<typename T> boost::shared_ptr<T> shared_from_raw(T *);
|
||||
template<typename T> boost::weak_ptr<T> weak_from_raw(T *);
|
||||
|
||||
namespace detail
|
||||
{
|
||||
template< class X, class Y > inline void sp_enable_shared_from_this( boost::shared_ptr<X> * ppx, Y const * py, boost::enable_shared_from_raw const * pe );
|
||||
|
||||
} // namespace detail
|
||||
|
||||
class enable_shared_from_raw
|
||||
{
|
||||
protected:
|
||||
|
||||
enable_shared_from_raw()
|
||||
{
|
||||
}
|
||||
|
||||
enable_shared_from_raw( enable_shared_from_raw const & )
|
||||
{
|
||||
}
|
||||
|
||||
enable_shared_from_raw & operator=( enable_shared_from_raw const & )
|
||||
{
|
||||
return *this;
|
||||
}
|
||||
|
||||
~enable_shared_from_raw()
|
||||
{
|
||||
BOOST_ASSERT( shared_this_.use_count() <= 1 ); // make sure no dangling shared_ptr objects exist
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
void init_weak_once() const
|
||||
{
|
||||
if( weak_this_.expired() )
|
||||
{
|
||||
shared_this_.reset( static_cast<void*>(0), detail::esft2_deleter_wrapper() );
|
||||
weak_this_ = shared_this_;
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
|
||||
public:
|
||||
#else
|
||||
private:
|
||||
template<class Y> friend class shared_ptr;
|
||||
template<typename T> friend boost::shared_ptr<T> shared_from_raw(T *);
|
||||
template<typename T> friend boost::weak_ptr<T> weak_from_raw(T *);
|
||||
template< class X, class Y > friend inline void detail::sp_enable_shared_from_this( boost::shared_ptr<X> * ppx, Y const * py, boost::enable_shared_from_raw const * pe );
|
||||
#endif
|
||||
|
||||
shared_ptr<void> shared_from_this()
|
||||
{
|
||||
init_weak_once();
|
||||
return shared_ptr<void>( weak_this_ );
|
||||
}
|
||||
|
||||
shared_ptr<const void> shared_from_this() const
|
||||
{
|
||||
init_weak_once();
|
||||
return shared_ptr<const void>( weak_this_ );
|
||||
}
|
||||
|
||||
// Note: invoked automatically by shared_ptr; do not call
|
||||
template<class X, class Y> void _internal_accept_owner( shared_ptr<X> * ppx, Y * py ) const
|
||||
{
|
||||
BOOST_ASSERT( ppx != 0 );
|
||||
|
||||
if( weak_this_.expired() )
|
||||
{
|
||||
weak_this_ = *ppx;
|
||||
}
|
||||
else if( shared_this_.use_count() != 0 )
|
||||
{
|
||||
BOOST_ASSERT( ppx->unique() ); // no weak_ptrs should exist either, but there's no way to check that
|
||||
|
||||
detail::esft2_deleter_wrapper * pd = boost::get_deleter<detail::esft2_deleter_wrapper>( shared_this_ );
|
||||
BOOST_ASSERT( pd != 0 );
|
||||
|
||||
pd->set_deleter( *ppx );
|
||||
|
||||
ppx->reset( shared_this_, ppx->get() );
|
||||
shared_this_.reset();
|
||||
}
|
||||
}
|
||||
|
||||
mutable weak_ptr<void> weak_this_;
|
||||
private:
|
||||
mutable shared_ptr<void> shared_this_;
|
||||
};
|
||||
|
||||
template<typename T>
|
||||
boost::shared_ptr<T> shared_from_raw(T *p)
|
||||
{
|
||||
BOOST_ASSERT(p != 0);
|
||||
return boost::shared_ptr<T>(p->enable_shared_from_raw::shared_from_this(), p);
|
||||
}
|
||||
|
||||
template<typename T>
|
||||
boost::weak_ptr<T> weak_from_raw(T *p)
|
||||
{
|
||||
BOOST_ASSERT(p != 0);
|
||||
boost::weak_ptr<T> result;
|
||||
result._internal_aliasing_assign(p->enable_shared_from_raw::weak_this_, p);
|
||||
return result;
|
||||
}
|
||||
|
||||
namespace detail
|
||||
{
|
||||
template< class X, class Y > inline void sp_enable_shared_from_this( boost::shared_ptr<X> * ppx, Y const * py, boost::enable_shared_from_raw const * pe )
|
||||
{
|
||||
if( pe != 0 )
|
||||
{
|
||||
pe->_internal_accept_owner( ppx, const_cast< Y* >( py ) );
|
||||
}
|
||||
}
|
||||
} // namepsace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_ENABLE_SHARED_FROM_RAW_HPP_INCLUDED
|
||||
@@ -1,79 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_ENABLE_SHARED_FROM_THIS_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_ENABLE_SHARED_FROM_THIS_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// enable_shared_from_this.hpp
|
||||
//
|
||||
// Copyright 2002, 2009 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
//
|
||||
// http://www.boost.org/libs/smart_ptr/enable_shared_from_this.html
|
||||
//
|
||||
|
||||
#include <boost/smart_ptr/weak_ptr.hpp>
|
||||
#include <boost/smart_ptr/shared_ptr.hpp>
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/config.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
template<class T> class enable_shared_from_this
|
||||
{
|
||||
protected:
|
||||
|
||||
enable_shared_from_this() BOOST_NOEXCEPT
|
||||
{
|
||||
}
|
||||
|
||||
enable_shared_from_this(enable_shared_from_this const &) BOOST_NOEXCEPT
|
||||
{
|
||||
}
|
||||
|
||||
enable_shared_from_this & operator=(enable_shared_from_this const &) BOOST_NOEXCEPT
|
||||
{
|
||||
return *this;
|
||||
}
|
||||
|
||||
~enable_shared_from_this() BOOST_NOEXCEPT // ~weak_ptr<T> newer throws, so this call also must not throw
|
||||
{
|
||||
}
|
||||
|
||||
public:
|
||||
|
||||
shared_ptr<T> shared_from_this()
|
||||
{
|
||||
shared_ptr<T> p( weak_this_ );
|
||||
BOOST_ASSERT( p.get() == this );
|
||||
return p;
|
||||
}
|
||||
|
||||
shared_ptr<T const> shared_from_this() const
|
||||
{
|
||||
shared_ptr<T const> p( weak_this_ );
|
||||
BOOST_ASSERT( p.get() == this );
|
||||
return p;
|
||||
}
|
||||
|
||||
public: // actually private, but avoids compiler template friendship issues
|
||||
|
||||
// Note: invoked automatically by shared_ptr; do not call
|
||||
template<class X, class Y> void _internal_accept_owner( shared_ptr<X> const * ppx, Y * py ) const
|
||||
{
|
||||
if( weak_this_.expired() )
|
||||
{
|
||||
weak_this_ = shared_ptr<T>( *ppx, py );
|
||||
}
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
mutable weak_ptr<T> weak_this_;
|
||||
};
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_ENABLE_SHARED_FROM_THIS_HPP_INCLUDED
|
||||
@@ -1,324 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_INTRUSIVE_PTR_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_INTRUSIVE_PTR_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// intrusive_ptr.hpp
|
||||
//
|
||||
// Copyright (c) 2001, 2002 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// See http://www.boost.org/libs/smart_ptr/intrusive_ptr.html for documentation.
|
||||
//
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_convertible.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_nullptr_t.hpp>
|
||||
|
||||
#include <boost/config/no_tr1/functional.hpp> // for std::less
|
||||
|
||||
#if !defined(BOOST_NO_IOSTREAM)
|
||||
#if !defined(BOOST_NO_IOSFWD)
|
||||
#include <iosfwd> // for std::basic_ostream
|
||||
#else
|
||||
#include <ostream>
|
||||
#endif
|
||||
#endif
|
||||
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
//
|
||||
// intrusive_ptr
|
||||
//
|
||||
// A smart pointer that uses intrusive reference counting.
|
||||
//
|
||||
// Relies on unqualified calls to
|
||||
//
|
||||
// void intrusive_ptr_add_ref(T * p);
|
||||
// void intrusive_ptr_release(T * p);
|
||||
//
|
||||
// (p != 0)
|
||||
//
|
||||
// The object is responsible for destroying itself.
|
||||
//
|
||||
|
||||
template<class T> class intrusive_ptr
|
||||
{
|
||||
private:
|
||||
|
||||
typedef intrusive_ptr this_type;
|
||||
|
||||
public:
|
||||
|
||||
typedef T element_type;
|
||||
|
||||
intrusive_ptr() BOOST_NOEXCEPT : px( 0 )
|
||||
{
|
||||
}
|
||||
|
||||
intrusive_ptr( T * p, bool add_ref = true ): px( p )
|
||||
{
|
||||
if( px != 0 && add_ref ) intrusive_ptr_add_ref( px );
|
||||
}
|
||||
|
||||
#if !defined(BOOST_NO_MEMBER_TEMPLATES) || defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
||||
|
||||
template<class U>
|
||||
#if !defined( BOOST_SP_NO_SP_CONVERTIBLE )
|
||||
|
||||
intrusive_ptr( intrusive_ptr<U> const & rhs, typename boost::detail::sp_enable_if_convertible<U,T>::type = boost::detail::sp_empty() )
|
||||
|
||||
#else
|
||||
|
||||
intrusive_ptr( intrusive_ptr<U> const & rhs )
|
||||
|
||||
#endif
|
||||
: px( rhs.get() )
|
||||
{
|
||||
if( px != 0 ) intrusive_ptr_add_ref( px );
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
intrusive_ptr(intrusive_ptr const & rhs): px( rhs.px )
|
||||
{
|
||||
if( px != 0 ) intrusive_ptr_add_ref( px );
|
||||
}
|
||||
|
||||
~intrusive_ptr()
|
||||
{
|
||||
if( px != 0 ) intrusive_ptr_release( px );
|
||||
}
|
||||
|
||||
#if !defined(BOOST_NO_MEMBER_TEMPLATES) || defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
||||
|
||||
template<class U> intrusive_ptr & operator=(intrusive_ptr<U> const & rhs)
|
||||
{
|
||||
this_type(rhs).swap(*this);
|
||||
return *this;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
// Move support
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
|
||||
|
||||
intrusive_ptr(intrusive_ptr && rhs) BOOST_NOEXCEPT : px( rhs.px )
|
||||
{
|
||||
rhs.px = 0;
|
||||
}
|
||||
|
||||
intrusive_ptr & operator=(intrusive_ptr && rhs) BOOST_NOEXCEPT
|
||||
{
|
||||
this_type( static_cast< intrusive_ptr && >( rhs ) ).swap(*this);
|
||||
return *this;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
intrusive_ptr & operator=(intrusive_ptr const & rhs)
|
||||
{
|
||||
this_type(rhs).swap(*this);
|
||||
return *this;
|
||||
}
|
||||
|
||||
intrusive_ptr & operator=(T * rhs)
|
||||
{
|
||||
this_type(rhs).swap(*this);
|
||||
return *this;
|
||||
}
|
||||
|
||||
void reset() BOOST_NOEXCEPT
|
||||
{
|
||||
this_type().swap( *this );
|
||||
}
|
||||
|
||||
void reset( T * rhs )
|
||||
{
|
||||
this_type( rhs ).swap( *this );
|
||||
}
|
||||
|
||||
T * get() const BOOST_NOEXCEPT
|
||||
{
|
||||
return px;
|
||||
}
|
||||
|
||||
T & operator*() const
|
||||
{
|
||||
BOOST_ASSERT( px != 0 );
|
||||
return *px;
|
||||
}
|
||||
|
||||
T * operator->() const
|
||||
{
|
||||
BOOST_ASSERT( px != 0 );
|
||||
return px;
|
||||
}
|
||||
|
||||
// implicit conversion to "bool"
|
||||
#include <boost/smart_ptr/detail/operator_bool.hpp>
|
||||
|
||||
void swap(intrusive_ptr & rhs) BOOST_NOEXCEPT
|
||||
{
|
||||
T * tmp = px;
|
||||
px = rhs.px;
|
||||
rhs.px = tmp;
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
T * px;
|
||||
};
|
||||
|
||||
template<class T, class U> inline bool operator==(intrusive_ptr<T> const & a, intrusive_ptr<U> const & b)
|
||||
{
|
||||
return a.get() == b.get();
|
||||
}
|
||||
|
||||
template<class T, class U> inline bool operator!=(intrusive_ptr<T> const & a, intrusive_ptr<U> const & b)
|
||||
{
|
||||
return a.get() != b.get();
|
||||
}
|
||||
|
||||
template<class T, class U> inline bool operator==(intrusive_ptr<T> const & a, U * b)
|
||||
{
|
||||
return a.get() == b;
|
||||
}
|
||||
|
||||
template<class T, class U> inline bool operator!=(intrusive_ptr<T> const & a, U * b)
|
||||
{
|
||||
return a.get() != b;
|
||||
}
|
||||
|
||||
template<class T, class U> inline bool operator==(T * a, intrusive_ptr<U> const & b)
|
||||
{
|
||||
return a == b.get();
|
||||
}
|
||||
|
||||
template<class T, class U> inline bool operator!=(T * a, intrusive_ptr<U> const & b)
|
||||
{
|
||||
return a != b.get();
|
||||
}
|
||||
|
||||
#if __GNUC__ == 2 && __GNUC_MINOR__ <= 96
|
||||
|
||||
// Resolve the ambiguity between our op!= and the one in rel_ops
|
||||
|
||||
template<class T> inline bool operator!=(intrusive_ptr<T> const & a, intrusive_ptr<T> const & b)
|
||||
{
|
||||
return a.get() != b.get();
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_NULLPTR )
|
||||
|
||||
template<class T> inline bool operator==( intrusive_ptr<T> const & p, boost::detail::sp_nullptr_t ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() == 0;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator==( boost::detail::sp_nullptr_t, intrusive_ptr<T> const & p ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() == 0;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=( intrusive_ptr<T> const & p, boost::detail::sp_nullptr_t ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() != 0;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=( boost::detail::sp_nullptr_t, intrusive_ptr<T> const & p ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() != 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
template<class T> inline bool operator<(intrusive_ptr<T> const & a, intrusive_ptr<T> const & b)
|
||||
{
|
||||
return std::less<T *>()(a.get(), b.get());
|
||||
}
|
||||
|
||||
template<class T> void swap(intrusive_ptr<T> & lhs, intrusive_ptr<T> & rhs)
|
||||
{
|
||||
lhs.swap(rhs);
|
||||
}
|
||||
|
||||
// mem_fn support
|
||||
|
||||
template<class T> T * get_pointer(intrusive_ptr<T> const & p)
|
||||
{
|
||||
return p.get();
|
||||
}
|
||||
|
||||
template<class T, class U> intrusive_ptr<T> static_pointer_cast(intrusive_ptr<U> const & p)
|
||||
{
|
||||
return static_cast<T *>(p.get());
|
||||
}
|
||||
|
||||
template<class T, class U> intrusive_ptr<T> const_pointer_cast(intrusive_ptr<U> const & p)
|
||||
{
|
||||
return const_cast<T *>(p.get());
|
||||
}
|
||||
|
||||
template<class T, class U> intrusive_ptr<T> dynamic_pointer_cast(intrusive_ptr<U> const & p)
|
||||
{
|
||||
return dynamic_cast<T *>(p.get());
|
||||
}
|
||||
|
||||
// operator<<
|
||||
|
||||
#if !defined(BOOST_NO_IOSTREAM)
|
||||
|
||||
#if defined(BOOST_NO_TEMPLATED_IOSTREAMS) || ( defined(__GNUC__) && (__GNUC__ < 3) )
|
||||
|
||||
template<class Y> std::ostream & operator<< (std::ostream & os, intrusive_ptr<Y> const & p)
|
||||
{
|
||||
os << p.get();
|
||||
return os;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
// in STLport's no-iostreams mode no iostream symbols can be used
|
||||
#ifndef _STLP_NO_IOSTREAMS
|
||||
|
||||
# if defined(BOOST_MSVC) && BOOST_WORKAROUND(BOOST_MSVC, < 1300 && __SGI_STL_PORT)
|
||||
// MSVC6 has problems finding std::basic_ostream through the using declaration in namespace _STL
|
||||
using std::basic_ostream;
|
||||
template<class E, class T, class Y> basic_ostream<E, T> & operator<< (basic_ostream<E, T> & os, intrusive_ptr<Y> const & p)
|
||||
# else
|
||||
template<class E, class T, class Y> std::basic_ostream<E, T> & operator<< (std::basic_ostream<E, T> & os, intrusive_ptr<Y> const & p)
|
||||
# endif
|
||||
{
|
||||
os << p.get();
|
||||
return os;
|
||||
}
|
||||
|
||||
#endif // _STLP_NO_IOSTREAMS
|
||||
|
||||
#endif // __GNUC__ < 3
|
||||
|
||||
#endif // !defined(BOOST_NO_IOSTREAM)
|
||||
|
||||
// hash_value
|
||||
|
||||
template< class T > struct hash;
|
||||
|
||||
template< class T > std::size_t hash_value( boost::intrusive_ptr<T> const & p )
|
||||
{
|
||||
return boost::hash< T* >()( p.get() );
|
||||
}
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_INTRUSIVE_PTR_HPP_INCLUDED
|
||||
@@ -1,22 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_MAKE_SHARED_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_MAKE_SHARED_HPP_INCLUDED
|
||||
|
||||
// make_shared.hpp
|
||||
//
|
||||
// Copyright (c) 2007, 2008, 2012 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
//
|
||||
// See http://www.boost.org/libs/smart_ptr/make_shared.html
|
||||
// for documentation.
|
||||
|
||||
#include <boost/smart_ptr/make_shared_object.hpp>
|
||||
|
||||
#if !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION ) && !defined( BOOST_NO_SFINAE )
|
||||
# include <boost/smart_ptr/make_shared_array.hpp>
|
||||
# include <boost/smart_ptr/allocate_shared_array.hpp>
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_MAKE_SHARED_HPP_INCLUDED
|
||||
@@ -1,247 +0,0 @@
|
||||
/*
|
||||
* Copyright (c) 2012 Glen Joseph Fernandes
|
||||
* glenfe at live dot com
|
||||
*
|
||||
* Distributed under the Boost Software License,
|
||||
* Version 1.0. (See accompanying file LICENSE_1_0.txt
|
||||
* or copy at http://boost.org/LICENSE_1_0.txt)
|
||||
*/
|
||||
#ifndef BOOST_SMART_PTR_MAKE_SHARED_ARRAY_HPP
|
||||
#define BOOST_SMART_PTR_MAKE_SHARED_ARRAY_HPP
|
||||
|
||||
#include <boost/smart_ptr/shared_ptr.hpp>
|
||||
#include <boost/smart_ptr/detail/array_deleter.hpp>
|
||||
#include <boost/smart_ptr/detail/array_traits.hpp>
|
||||
#include <boost/smart_ptr/detail/make_array_helper.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_if_array.hpp>
|
||||
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
|
||||
#include <initializer_list>
|
||||
#endif
|
||||
|
||||
namespace boost {
|
||||
template<typename T>
|
||||
inline typename boost::detail::sp_if_array<T>::type
|
||||
make_shared(std::size_t size) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
std::size_t n1 = size * boost::detail::array_total<T1>::size;
|
||||
boost::detail::make_array_helper<T2[]> a1(n1, &p2);
|
||||
boost::detail::array_deleter<T2[]> d1(n1);
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init(p2);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
|
||||
template<typename T, typename... Args>
|
||||
inline typename boost::detail::sp_if_array<T>::type
|
||||
make_shared(std::size_t size, Args&&... args) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
std::size_t n1 = size * boost::detail::array_total<T1>::size;
|
||||
boost::detail::make_array_helper<T2[]> a1(n1, &p2);
|
||||
boost::detail::array_deleter<T2[]> d1(n1);
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init(p2, boost::detail::sp_forward<Args>(args)...);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
template<typename T, typename... Args>
|
||||
inline typename boost::detail::sp_if_size_array<T>::type
|
||||
make_shared(Args&&... args) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
enum {
|
||||
N = boost::detail::array_total<T>::size
|
||||
};
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
boost::detail::make_array_helper<T2[N]> a1(&p2);
|
||||
boost::detail::array_deleter<T2[N]> d1;
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[N]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init(p2, boost::detail::sp_forward<Args>(args)...);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
#endif
|
||||
#if !defined(BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX)
|
||||
template<typename T>
|
||||
inline typename boost::detail::sp_if_size_array<T>::type
|
||||
make_shared(const T& list) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
typedef const T2 T3;
|
||||
enum {
|
||||
N = boost::detail::array_total<T>::size
|
||||
};
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
T3* p3 = 0;
|
||||
boost::detail::make_array_helper<T2[N]> a1(&p2);
|
||||
boost::detail::array_deleter<T2[N]> d1;
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[N]>* D2;
|
||||
p3 = reinterpret_cast<T3*>(list);
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init_list(p2, p3);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
template<typename T>
|
||||
inline typename boost::detail::sp_if_array<T>::type
|
||||
make_shared(std::size_t size,
|
||||
const typename boost::detail::array_inner<T>::type& list) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
typedef const T2 T3;
|
||||
enum {
|
||||
M = boost::detail::array_total<T1>::size
|
||||
};
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
T3* p3 = 0;
|
||||
std::size_t n1 = M * size;
|
||||
boost::detail::make_array_helper<T2[]> a1(n1, &p2);
|
||||
boost::detail::array_deleter<T2[]> d1(n1);
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[]>* D2;
|
||||
p3 = reinterpret_cast<T3*>(list);
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->template init_list<M>(p2, p3);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
template<typename T>
|
||||
inline typename boost::detail::sp_if_size_array<T>::type
|
||||
make_shared(const typename boost::detail::array_inner<T>::type& list) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
typedef const T2 T3;
|
||||
enum {
|
||||
M = boost::detail::array_total<T1>::size,
|
||||
N = boost::detail::array_total<T>::size
|
||||
};
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
T3* p3 = 0;
|
||||
boost::detail::make_array_helper<T2[N]> a1(&p2);
|
||||
boost::detail::array_deleter<T2[N]> d1;
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[N]>* D2;
|
||||
p3 = reinterpret_cast<T3*>(list);
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->template init_list<M>(p2, p3);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
|
||||
template<typename T>
|
||||
inline typename boost::detail::sp_if_array<T>::type
|
||||
make_shared(std::initializer_list<typename boost::detail::array_inner<T>::type> list) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
typedef const T2 T3;
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
T3* p3 = 0;
|
||||
std::size_t n1 = list.size() * boost::detail::array_total<T1>::size;
|
||||
boost::detail::make_array_helper<T2[]> a1(n1, &p2);
|
||||
boost::detail::array_deleter<T2[]> d1(n1);
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[]>* D2;
|
||||
p3 = reinterpret_cast<T3*>(list.begin());
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init_list(p2, p3);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
#endif
|
||||
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
|
||||
template<typename T>
|
||||
inline typename boost::detail::sp_if_array<T>::type
|
||||
make_shared(std::size_t size,
|
||||
typename boost::detail::array_base<T>::type&& value) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
std::size_t n1 = size * boost::detail::array_total<T1>::size;
|
||||
boost::detail::make_array_helper<T2[]> a1(n1, &p2);
|
||||
boost::detail::array_deleter<T2[]> d1(n1);
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init(p2, boost::detail::sp_forward<T2>(value));
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
template<typename T>
|
||||
inline typename boost::detail::sp_if_size_array<T>::type
|
||||
make_shared(typename boost::detail::array_base<T>::type&& value) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
enum {
|
||||
N = boost::detail::array_total<T>::size
|
||||
};
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
boost::detail::make_array_helper<T2[N]> a1(&p2);
|
||||
boost::detail::array_deleter<T2[N]> d1;
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[N]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->init(p2, boost::detail::sp_forward<T2>(value));
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
template<typename T>
|
||||
inline typename boost::detail::sp_if_array<T>::type
|
||||
make_shared_noinit(std::size_t size) {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
std::size_t n1 = size * boost::detail::array_total<T1>::size;
|
||||
boost::detail::make_array_helper<T2[]> a1(n1, &p2);
|
||||
boost::detail::array_deleter<T2[]> d1(n1);
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->noinit(p2);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
template<typename T>
|
||||
inline typename boost::detail::sp_if_size_array<T>::type
|
||||
make_shared_noinit() {
|
||||
typedef typename boost::detail::array_inner<T>::type T1;
|
||||
typedef typename boost::detail::array_base<T1>::type T2;
|
||||
enum {
|
||||
N = boost::detail::array_total<T>::size
|
||||
};
|
||||
T1* p1 = 0;
|
||||
T2* p2 = 0;
|
||||
boost::detail::make_array_helper<T2[N]> a1(&p2);
|
||||
boost::detail::array_deleter<T2[N]> d1;
|
||||
boost::shared_ptr<T> s1(p1, d1, a1);
|
||||
typedef boost::detail::array_deleter<T2[N]>* D2;
|
||||
p1 = reinterpret_cast<T1*>(p2);
|
||||
D2 d2 = static_cast<D2>(s1._internal_get_untyped_deleter());
|
||||
d2->noinit(p2);
|
||||
return boost::shared_ptr<T>(s1, p1);
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
File diff suppressed because it is too large
Load Diff
@@ -1,57 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_OWNER_LESS_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_OWNER_LESS_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// owner_less.hpp
|
||||
//
|
||||
// Copyright (c) 2008 Frank Mori Hess
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// See http://www.boost.org/libs/smart_ptr/smart_ptr.htm for documentation.
|
||||
//
|
||||
|
||||
#include <functional>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
template<typename T> class shared_ptr;
|
||||
template<typename T> class weak_ptr;
|
||||
|
||||
namespace detail
|
||||
{
|
||||
template<typename T, typename U>
|
||||
struct generic_owner_less : public std::binary_function<T, T, bool>
|
||||
{
|
||||
bool operator()(const T &lhs, const T &rhs) const
|
||||
{
|
||||
return lhs.owner_before(rhs);
|
||||
}
|
||||
bool operator()(const T &lhs, const U &rhs) const
|
||||
{
|
||||
return lhs.owner_before(rhs);
|
||||
}
|
||||
bool operator()(const U &lhs, const T &rhs) const
|
||||
{
|
||||
return lhs.owner_before(rhs);
|
||||
}
|
||||
};
|
||||
} // namespace detail
|
||||
|
||||
template<typename T> struct owner_less;
|
||||
|
||||
template<typename T>
|
||||
struct owner_less<shared_ptr<T> >:
|
||||
public detail::generic_owner_less<shared_ptr<T>, weak_ptr<T> >
|
||||
{};
|
||||
|
||||
template<typename T>
|
||||
struct owner_less<weak_ptr<T> >:
|
||||
public detail::generic_owner_less<weak_ptr<T>, shared_ptr<T> >
|
||||
{};
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_OWNER_LESS_HPP_INCLUDED
|
||||
@@ -1,132 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_SCOPED_ARRAY_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_SCOPED_ARRAY_HPP_INCLUDED
|
||||
|
||||
// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
|
||||
// Copyright (c) 2001, 2002 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// http://www.boost.org/libs/smart_ptr/scoped_array.htm
|
||||
//
|
||||
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/checked_delete.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_nullptr_t.hpp>
|
||||
|
||||
#include <boost/detail/workaround.hpp>
|
||||
|
||||
#include <cstddef> // for std::ptrdiff_t
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
// Debug hooks
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
|
||||
void sp_array_constructor_hook(void * p);
|
||||
void sp_array_destructor_hook(void * p);
|
||||
|
||||
#endif
|
||||
|
||||
// scoped_array extends scoped_ptr to arrays. Deletion of the array pointed to
|
||||
// is guaranteed, either on destruction of the scoped_array or via an explicit
|
||||
// reset(). Use shared_array or std::vector if your needs are more complex.
|
||||
|
||||
template<class T> class scoped_array // noncopyable
|
||||
{
|
||||
private:
|
||||
|
||||
T * px;
|
||||
|
||||
scoped_array(scoped_array const &);
|
||||
scoped_array & operator=(scoped_array const &);
|
||||
|
||||
typedef scoped_array<T> this_type;
|
||||
|
||||
void operator==( scoped_array const& ) const;
|
||||
void operator!=( scoped_array const& ) const;
|
||||
|
||||
public:
|
||||
|
||||
typedef T element_type;
|
||||
|
||||
explicit scoped_array( T * p = 0 ) BOOST_NOEXCEPT : px( p )
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
boost::sp_array_constructor_hook( px );
|
||||
#endif
|
||||
}
|
||||
|
||||
~scoped_array() // never throws
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
boost::sp_array_destructor_hook( px );
|
||||
#endif
|
||||
boost::checked_array_delete( px );
|
||||
}
|
||||
|
||||
void reset(T * p = 0) // never throws (but has a BOOST_ASSERT in it, so not marked with BOOST_NOEXCEPT)
|
||||
{
|
||||
BOOST_ASSERT( p == 0 || p != px ); // catch self-reset errors
|
||||
this_type(p).swap(*this);
|
||||
}
|
||||
|
||||
T & operator[](std::ptrdiff_t i) const // never throws (but has a BOOST_ASSERT in it, so not marked with BOOST_NOEXCEPT)
|
||||
{
|
||||
BOOST_ASSERT( px != 0 );
|
||||
BOOST_ASSERT( i >= 0 );
|
||||
return px[i];
|
||||
}
|
||||
|
||||
T * get() const BOOST_NOEXCEPT
|
||||
{
|
||||
return px;
|
||||
}
|
||||
|
||||
// implicit conversion to "bool"
|
||||
#include <boost/smart_ptr/detail/operator_bool.hpp>
|
||||
|
||||
void swap(scoped_array & b) BOOST_NOEXCEPT
|
||||
{
|
||||
T * tmp = b.px;
|
||||
b.px = px;
|
||||
px = tmp;
|
||||
}
|
||||
};
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_NULLPTR )
|
||||
|
||||
template<class T> inline bool operator==( scoped_array<T> const & p, boost::detail::sp_nullptr_t ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() == 0;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator==( boost::detail::sp_nullptr_t, scoped_array<T> const & p ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() == 0;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=( scoped_array<T> const & p, boost::detail::sp_nullptr_t ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() != 0;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=( boost::detail::sp_nullptr_t, scoped_array<T> const & p ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() != 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
template<class T> inline void swap(scoped_array<T> & a, scoped_array<T> & b) BOOST_NOEXCEPT
|
||||
{
|
||||
a.swap(b);
|
||||
}
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_SCOPED_ARRAY_HPP_INCLUDED
|
||||
@@ -1,157 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_SCOPED_PTR_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_SCOPED_PTR_HPP_INCLUDED
|
||||
|
||||
// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
|
||||
// Copyright (c) 2001, 2002 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// http://www.boost.org/libs/smart_ptr/scoped_ptr.htm
|
||||
//
|
||||
|
||||
#include <boost/config.hpp>
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/checked_delete.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_nullptr_t.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
|
||||
#ifndef BOOST_NO_AUTO_PTR
|
||||
# include <memory> // for std::auto_ptr
|
||||
#endif
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
// Debug hooks
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
|
||||
void sp_scalar_constructor_hook(void * p);
|
||||
void sp_scalar_destructor_hook(void * p);
|
||||
|
||||
#endif
|
||||
|
||||
// scoped_ptr mimics a built-in pointer except that it guarantees deletion
|
||||
// of the object pointed to, either on destruction of the scoped_ptr or via
|
||||
// an explicit reset(). scoped_ptr is a simple solution for simple needs;
|
||||
// use shared_ptr or std::auto_ptr if your needs are more complex.
|
||||
|
||||
template<class T> class scoped_ptr // noncopyable
|
||||
{
|
||||
private:
|
||||
|
||||
T * px;
|
||||
|
||||
scoped_ptr(scoped_ptr const &);
|
||||
scoped_ptr & operator=(scoped_ptr const &);
|
||||
|
||||
typedef scoped_ptr<T> this_type;
|
||||
|
||||
void operator==( scoped_ptr const& ) const;
|
||||
void operator!=( scoped_ptr const& ) const;
|
||||
|
||||
public:
|
||||
|
||||
typedef T element_type;
|
||||
|
||||
explicit scoped_ptr( T * p = 0 ): px( p ) // never throws
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
boost::sp_scalar_constructor_hook( px );
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifndef BOOST_NO_AUTO_PTR
|
||||
|
||||
explicit scoped_ptr( std::auto_ptr<T> p ) BOOST_NOEXCEPT : px( p.release() )
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
boost::sp_scalar_constructor_hook( px );
|
||||
#endif
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
~scoped_ptr() // never throws
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
boost::sp_scalar_destructor_hook( px );
|
||||
#endif
|
||||
boost::checked_delete( px );
|
||||
}
|
||||
|
||||
void reset(T * p = 0) // never throws
|
||||
{
|
||||
BOOST_ASSERT( p == 0 || p != px ); // catch self-reset errors
|
||||
this_type(p).swap(*this);
|
||||
}
|
||||
|
||||
T & operator*() const // never throws
|
||||
{
|
||||
BOOST_ASSERT( px != 0 );
|
||||
return *px;
|
||||
}
|
||||
|
||||
T * operator->() const // never throws
|
||||
{
|
||||
BOOST_ASSERT( px != 0 );
|
||||
return px;
|
||||
}
|
||||
|
||||
T * get() const BOOST_NOEXCEPT
|
||||
{
|
||||
return px;
|
||||
}
|
||||
|
||||
// implicit conversion to "bool"
|
||||
#include <boost/smart_ptr/detail/operator_bool.hpp>
|
||||
|
||||
void swap(scoped_ptr & b) BOOST_NOEXCEPT
|
||||
{
|
||||
T * tmp = b.px;
|
||||
b.px = px;
|
||||
px = tmp;
|
||||
}
|
||||
};
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_NULLPTR )
|
||||
|
||||
template<class T> inline bool operator==( scoped_ptr<T> const & p, boost::detail::sp_nullptr_t ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() == 0;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator==( boost::detail::sp_nullptr_t, scoped_ptr<T> const & p ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() == 0;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=( scoped_ptr<T> const & p, boost::detail::sp_nullptr_t ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() != 0;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=( boost::detail::sp_nullptr_t, scoped_ptr<T> const & p ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() != 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
template<class T> inline void swap(scoped_ptr<T> & a, scoped_ptr<T> & b) BOOST_NOEXCEPT
|
||||
{
|
||||
a.swap(b);
|
||||
}
|
||||
|
||||
// get_pointer(p) is a generic way to say p.get()
|
||||
|
||||
template<class T> inline T * get_pointer(scoped_ptr<T> const & p) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get();
|
||||
}
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_SCOPED_PTR_HPP_INCLUDED
|
||||
@@ -1,290 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_SHARED_ARRAY_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_SHARED_ARRAY_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// shared_array.hpp
|
||||
//
|
||||
// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
|
||||
// Copyright (c) 2001, 2002, 2012 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// See http://www.boost.org/libs/smart_ptr/shared_array.htm for documentation.
|
||||
//
|
||||
|
||||
#include <boost/config.hpp> // for broken compiler workarounds
|
||||
|
||||
#if defined(BOOST_NO_MEMBER_TEMPLATES) && !defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
||||
#include <boost/smart_ptr/detail/shared_array_nmt.hpp>
|
||||
#else
|
||||
|
||||
#include <memory> // TR1 cyclic inclusion fix
|
||||
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/checked_delete.hpp>
|
||||
|
||||
#include <boost/smart_ptr/shared_ptr.hpp>
|
||||
#include <boost/smart_ptr/detail/shared_count.hpp>
|
||||
#include <boost/smart_ptr/detail/sp_nullptr_t.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
|
||||
#include <cstddef> // for std::ptrdiff_t
|
||||
#include <algorithm> // for std::swap
|
||||
#include <functional> // for std::less
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
//
|
||||
// shared_array
|
||||
//
|
||||
// shared_array extends shared_ptr to arrays.
|
||||
// The array pointed to is deleted when the last shared_array pointing to it
|
||||
// is destroyed or reset.
|
||||
//
|
||||
|
||||
template<class T> class shared_array
|
||||
{
|
||||
private:
|
||||
|
||||
// Borland 5.5.1 specific workarounds
|
||||
typedef checked_array_deleter<T> deleter;
|
||||
typedef shared_array<T> this_type;
|
||||
|
||||
public:
|
||||
|
||||
typedef T element_type;
|
||||
|
||||
shared_array() BOOST_NOEXCEPT : px( 0 ), pn()
|
||||
{
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
explicit shared_array( Y * p ): px( p ), pn( p, checked_array_deleter<Y>() )
|
||||
{
|
||||
boost::detail::sp_assert_convertible< Y[], T[] >();
|
||||
}
|
||||
|
||||
//
|
||||
// Requirements: D's copy constructor must not throw
|
||||
//
|
||||
// shared_array will release p by calling d(p)
|
||||
//
|
||||
|
||||
template<class Y, class D> shared_array( Y * p, D d ): px( p ), pn( p, d )
|
||||
{
|
||||
boost::detail::sp_assert_convertible< Y[], T[] >();
|
||||
}
|
||||
|
||||
// As above, but with allocator. A's copy constructor shall not throw.
|
||||
|
||||
template<class Y, class D, class A> shared_array( Y * p, D d, A a ): px( p ), pn( p, d, a )
|
||||
{
|
||||
boost::detail::sp_assert_convertible< Y[], T[] >();
|
||||
}
|
||||
|
||||
// generated copy constructor, destructor are fine...
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
|
||||
|
||||
// ... except in C++0x, move disables the implicit copy
|
||||
|
||||
shared_array( shared_array const & r ) BOOST_NOEXCEPT : px( r.px ), pn( r.pn )
|
||||
{
|
||||
}
|
||||
|
||||
shared_array( shared_array && r ) BOOST_NOEXCEPT : px( r.px ), pn()
|
||||
{
|
||||
pn.swap( r.pn );
|
||||
r.px = 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
// conversion
|
||||
|
||||
template<class Y>
|
||||
#if !defined( BOOST_SP_NO_SP_CONVERTIBLE )
|
||||
|
||||
shared_array( shared_array<Y> const & r, typename boost::detail::sp_enable_if_convertible< Y[], T[] >::type = boost::detail::sp_empty() )
|
||||
|
||||
#else
|
||||
|
||||
shared_array( shared_array<Y> const & r )
|
||||
|
||||
#endif
|
||||
BOOST_NOEXCEPT : px( r.px ), pn( r.pn ) // never throws
|
||||
{
|
||||
boost::detail::sp_assert_convertible< Y[], T[] >();
|
||||
}
|
||||
|
||||
// aliasing
|
||||
|
||||
template< class Y >
|
||||
shared_array( shared_array<Y> const & r, element_type * p ) BOOST_NOEXCEPT : px( p ), pn( r.pn )
|
||||
{
|
||||
}
|
||||
|
||||
// assignment
|
||||
|
||||
shared_array & operator=( shared_array const & r ) BOOST_NOEXCEPT
|
||||
{
|
||||
this_type( r ).swap( *this );
|
||||
return *this;
|
||||
}
|
||||
|
||||
#if !defined(BOOST_MSVC) || (BOOST_MSVC >= 1400)
|
||||
|
||||
template<class Y>
|
||||
shared_array & operator=( shared_array<Y> const & r ) BOOST_NOEXCEPT
|
||||
{
|
||||
this_type( r ).swap( *this );
|
||||
return *this;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
|
||||
|
||||
shared_array & operator=( shared_array && r ) BOOST_NOEXCEPT
|
||||
{
|
||||
this_type( static_cast< shared_array && >( r ) ).swap( *this );
|
||||
return *this;
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
shared_array & operator=( shared_array<Y> && r ) BOOST_NOEXCEPT
|
||||
{
|
||||
this_type( static_cast< shared_array<Y> && >( r ) ).swap( *this );
|
||||
return *this;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
void reset() BOOST_NOEXCEPT
|
||||
{
|
||||
this_type().swap( *this );
|
||||
}
|
||||
|
||||
template<class Y> void reset( Y * p ) // Y must be complete
|
||||
{
|
||||
BOOST_ASSERT( p == 0 || p != px ); // catch self-reset errors
|
||||
this_type( p ).swap( *this );
|
||||
}
|
||||
|
||||
template<class Y, class D> void reset( Y * p, D d )
|
||||
{
|
||||
this_type( p, d ).swap( *this );
|
||||
}
|
||||
|
||||
template<class Y, class D, class A> void reset( Y * p, D d, A a )
|
||||
{
|
||||
this_type( p, d, a ).swap( *this );
|
||||
}
|
||||
|
||||
template<class Y> void reset( shared_array<Y> const & r, element_type * p )
|
||||
{
|
||||
this_type( r, p ).swap( *this );
|
||||
}
|
||||
|
||||
T & operator[] (std::ptrdiff_t i) const // never throws (but has a BOOST_ASSERT in it, so not marked with BOOST_NOEXCEPT)
|
||||
{
|
||||
BOOST_ASSERT(px != 0);
|
||||
BOOST_ASSERT(i >= 0);
|
||||
return px[i];
|
||||
}
|
||||
|
||||
T * get() const BOOST_NOEXCEPT
|
||||
{
|
||||
return px;
|
||||
}
|
||||
|
||||
// implicit conversion to "bool"
|
||||
#include <boost/smart_ptr/detail/operator_bool.hpp>
|
||||
|
||||
bool unique() const BOOST_NOEXCEPT
|
||||
{
|
||||
return pn.unique();
|
||||
}
|
||||
|
||||
long use_count() const BOOST_NOEXCEPT
|
||||
{
|
||||
return pn.use_count();
|
||||
}
|
||||
|
||||
void swap(shared_array<T> & other) BOOST_NOEXCEPT
|
||||
{
|
||||
std::swap(px, other.px);
|
||||
pn.swap(other.pn);
|
||||
}
|
||||
|
||||
void * _internal_get_deleter( boost::detail::sp_typeinfo const & ti ) const
|
||||
{
|
||||
return pn.get_deleter( ti );
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
template<class Y> friend class shared_array;
|
||||
|
||||
T * px; // contained pointer
|
||||
detail::shared_count pn; // reference counter
|
||||
|
||||
}; // shared_array
|
||||
|
||||
template<class T> inline bool operator==(shared_array<T> const & a, shared_array<T> const & b) BOOST_NOEXCEPT
|
||||
{
|
||||
return a.get() == b.get();
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=(shared_array<T> const & a, shared_array<T> const & b) BOOST_NOEXCEPT
|
||||
{
|
||||
return a.get() != b.get();
|
||||
}
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_NULLPTR )
|
||||
|
||||
template<class T> inline bool operator==( shared_array<T> const & p, boost::detail::sp_nullptr_t ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() == 0;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator==( boost::detail::sp_nullptr_t, shared_array<T> const & p ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() == 0;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=( shared_array<T> const & p, boost::detail::sp_nullptr_t ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() != 0;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=( boost::detail::sp_nullptr_t, shared_array<T> const & p ) BOOST_NOEXCEPT
|
||||
{
|
||||
return p.get() != 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
template<class T> inline bool operator<(shared_array<T> const & a, shared_array<T> const & b) BOOST_NOEXCEPT
|
||||
{
|
||||
return std::less<T*>()(a.get(), b.get());
|
||||
}
|
||||
|
||||
template<class T> void swap(shared_array<T> & a, shared_array<T> & b) BOOST_NOEXCEPT
|
||||
{
|
||||
a.swap(b);
|
||||
}
|
||||
|
||||
template< class D, class T > D * get_deleter( shared_array<T> const & p )
|
||||
{
|
||||
return static_cast< D * >( p._internal_get_deleter( BOOST_SP_TYPEID(D) ) );
|
||||
}
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #if defined(BOOST_NO_MEMBER_TEMPLATES) && !defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_SHARED_ARRAY_HPP_INCLUDED
|
||||
File diff suppressed because it is too large
Load Diff
@@ -1,253 +0,0 @@
|
||||
#ifndef BOOST_SMART_PTR_WEAK_PTR_HPP_INCLUDED
|
||||
#define BOOST_SMART_PTR_WEAK_PTR_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// weak_ptr.hpp
|
||||
//
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// See http://www.boost.org/libs/smart_ptr/weak_ptr.htm for documentation.
|
||||
//
|
||||
|
||||
#include <memory> // boost.TR1 include order fix
|
||||
#include <boost/smart_ptr/detail/shared_count.hpp>
|
||||
#include <boost/smart_ptr/shared_ptr.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
template<class T> class weak_ptr
|
||||
{
|
||||
private:
|
||||
|
||||
// Borland 5.5.1 specific workarounds
|
||||
typedef weak_ptr<T> this_type;
|
||||
|
||||
public:
|
||||
|
||||
typedef typename boost::detail::sp_element< T >::type element_type;
|
||||
|
||||
weak_ptr() BOOST_NOEXCEPT : px(0), pn() // never throws in 1.30+
|
||||
{
|
||||
}
|
||||
|
||||
// generated copy constructor, assignment, destructor are fine...
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
|
||||
|
||||
// ... except in C++0x, move disables the implicit copy
|
||||
|
||||
weak_ptr( weak_ptr const & r ) BOOST_NOEXCEPT : px( r.px ), pn( r.pn )
|
||||
{
|
||||
}
|
||||
|
||||
weak_ptr & operator=( weak_ptr const & r ) BOOST_NOEXCEPT
|
||||
{
|
||||
px = r.px;
|
||||
pn = r.pn;
|
||||
return *this;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
//
|
||||
// The "obvious" converting constructor implementation:
|
||||
//
|
||||
// template<class Y>
|
||||
// weak_ptr(weak_ptr<Y> const & r): px(r.px), pn(r.pn) // never throws
|
||||
// {
|
||||
// }
|
||||
//
|
||||
// has a serious problem.
|
||||
//
|
||||
// r.px may already have been invalidated. The px(r.px)
|
||||
// conversion may require access to *r.px (virtual inheritance).
|
||||
//
|
||||
// It is not possible to avoid spurious access violations since
|
||||
// in multithreaded programs r.px may be invalidated at any point.
|
||||
//
|
||||
|
||||
template<class Y>
|
||||
#if !defined( BOOST_SP_NO_SP_CONVERTIBLE )
|
||||
|
||||
weak_ptr( weak_ptr<Y> const & r, typename boost::detail::sp_enable_if_convertible<Y,T>::type = boost::detail::sp_empty() )
|
||||
|
||||
#else
|
||||
|
||||
weak_ptr( weak_ptr<Y> const & r )
|
||||
|
||||
#endif
|
||||
BOOST_NOEXCEPT : px(r.lock().get()), pn(r.pn)
|
||||
{
|
||||
boost::detail::sp_assert_convertible< Y, T >();
|
||||
}
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
|
||||
|
||||
template<class Y>
|
||||
#if !defined( BOOST_SP_NO_SP_CONVERTIBLE )
|
||||
|
||||
weak_ptr( weak_ptr<Y> && r, typename boost::detail::sp_enable_if_convertible<Y,T>::type = boost::detail::sp_empty() )
|
||||
|
||||
#else
|
||||
|
||||
weak_ptr( weak_ptr<Y> && r )
|
||||
|
||||
#endif
|
||||
BOOST_NOEXCEPT : px( r.lock().get() ), pn( static_cast< boost::detail::weak_count && >( r.pn ) )
|
||||
{
|
||||
boost::detail::sp_assert_convertible< Y, T >();
|
||||
r.px = 0;
|
||||
}
|
||||
|
||||
// for better efficiency in the T == Y case
|
||||
weak_ptr( weak_ptr && r )
|
||||
BOOST_NOEXCEPT : px( r.px ), pn( static_cast< boost::detail::weak_count && >( r.pn ) )
|
||||
{
|
||||
r.px = 0;
|
||||
}
|
||||
|
||||
// for better efficiency in the T == Y case
|
||||
weak_ptr & operator=( weak_ptr && r ) BOOST_NOEXCEPT
|
||||
{
|
||||
this_type( static_cast< weak_ptr && >( r ) ).swap( *this );
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
#endif
|
||||
|
||||
template<class Y>
|
||||
#if !defined( BOOST_SP_NO_SP_CONVERTIBLE )
|
||||
|
||||
weak_ptr( shared_ptr<Y> const & r, typename boost::detail::sp_enable_if_convertible<Y,T>::type = boost::detail::sp_empty() )
|
||||
|
||||
#else
|
||||
|
||||
weak_ptr( shared_ptr<Y> const & r )
|
||||
|
||||
#endif
|
||||
BOOST_NOEXCEPT : px( r.px ), pn( r.pn )
|
||||
{
|
||||
boost::detail::sp_assert_convertible< Y, T >();
|
||||
}
|
||||
|
||||
#if !defined(BOOST_MSVC) || (BOOST_MSVC >= 1300)
|
||||
|
||||
template<class Y>
|
||||
weak_ptr & operator=( weak_ptr<Y> const & r ) BOOST_NOEXCEPT
|
||||
{
|
||||
boost::detail::sp_assert_convertible< Y, T >();
|
||||
|
||||
px = r.lock().get();
|
||||
pn = r.pn;
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_RVALUE_REFERENCES )
|
||||
|
||||
template<class Y>
|
||||
weak_ptr & operator=( weak_ptr<Y> && r ) BOOST_NOEXCEPT
|
||||
{
|
||||
this_type( static_cast< weak_ptr<Y> && >( r ) ).swap( *this );
|
||||
return *this;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
template<class Y>
|
||||
weak_ptr & operator=( shared_ptr<Y> const & r ) BOOST_NOEXCEPT
|
||||
{
|
||||
boost::detail::sp_assert_convertible< Y, T >();
|
||||
|
||||
px = r.px;
|
||||
pn = r.pn;
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
shared_ptr<T> lock() const BOOST_NOEXCEPT
|
||||
{
|
||||
return shared_ptr<T>( *this, boost::detail::sp_nothrow_tag() );
|
||||
}
|
||||
|
||||
long use_count() const BOOST_NOEXCEPT
|
||||
{
|
||||
return pn.use_count();
|
||||
}
|
||||
|
||||
bool expired() const BOOST_NOEXCEPT
|
||||
{
|
||||
return pn.use_count() == 0;
|
||||
}
|
||||
|
||||
bool _empty() const // extension, not in std::weak_ptr
|
||||
{
|
||||
return pn.empty();
|
||||
}
|
||||
|
||||
void reset() BOOST_NOEXCEPT // never throws in 1.30+
|
||||
{
|
||||
this_type().swap(*this);
|
||||
}
|
||||
|
||||
void swap(this_type & other) BOOST_NOEXCEPT
|
||||
{
|
||||
std::swap(px, other.px);
|
||||
pn.swap(other.pn);
|
||||
}
|
||||
|
||||
template<typename Y>
|
||||
void _internal_aliasing_assign(weak_ptr<Y> const & r, element_type * px2)
|
||||
{
|
||||
px = px2;
|
||||
pn = r.pn;
|
||||
}
|
||||
|
||||
template<class Y> bool owner_before( weak_ptr<Y> const & rhs ) const BOOST_NOEXCEPT
|
||||
{
|
||||
return pn < rhs.pn;
|
||||
}
|
||||
|
||||
template<class Y> bool owner_before( shared_ptr<Y> const & rhs ) const BOOST_NOEXCEPT
|
||||
{
|
||||
return pn < rhs.pn;
|
||||
}
|
||||
|
||||
// Tasteless as this may seem, making all members public allows member templates
|
||||
// to work in the absence of member template friends. (Matthew Langston)
|
||||
|
||||
#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
|
||||
|
||||
private:
|
||||
|
||||
template<class Y> friend class weak_ptr;
|
||||
template<class Y> friend class shared_ptr;
|
||||
|
||||
#endif
|
||||
|
||||
element_type * px; // contained pointer
|
||||
boost::detail::weak_count pn; // reference counter
|
||||
|
||||
}; // weak_ptr
|
||||
|
||||
template<class T, class U> inline bool operator<(weak_ptr<T> const & a, weak_ptr<U> const & b) BOOST_NOEXCEPT
|
||||
{
|
||||
return a.owner_before( b );
|
||||
}
|
||||
|
||||
template<class T> void swap(weak_ptr<T> & a, weak_ptr<T> & b) BOOST_NOEXCEPT
|
||||
{
|
||||
a.swap(b);
|
||||
}
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_SMART_PTR_WEAK_PTR_HPP_INCLUDED
|
||||
@@ -6,13 +6,187 @@
|
||||
//
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov
|
||||
//
|
||||
// Distributed under the Boost Software License, Version 1.0.
|
||||
// See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt
|
||||
// Distributed under the Boost Software License, Version 1.0. (See
|
||||
// accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// See http://www.boost.org/libs/smart_ptr/weak_ptr.htm for documentation.
|
||||
//
|
||||
|
||||
#include <boost/smart_ptr/weak_ptr.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
|
||||
#ifdef BOOST_MSVC // moved here to work around VC++ compiler crash
|
||||
# pragma warning(push)
|
||||
# pragma warning(disable:4284) // odd return type for operator->
|
||||
#endif
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
template<class T> class weak_ptr
|
||||
{
|
||||
private:
|
||||
|
||||
// Borland 5.5.1 specific workarounds
|
||||
typedef weak_ptr<T> this_type;
|
||||
|
||||
public:
|
||||
|
||||
typedef T element_type;
|
||||
|
||||
weak_ptr(): px(0), pn() // never throws in 1.30+
|
||||
{
|
||||
}
|
||||
|
||||
// generated copy constructor, assignment, destructor are fine
|
||||
|
||||
|
||||
//
|
||||
// The "obvious" converting constructor implementation:
|
||||
//
|
||||
// template<class Y>
|
||||
// weak_ptr(weak_ptr<Y> const & r): px(r.px), pn(r.pn) // never throws
|
||||
// {
|
||||
// }
|
||||
//
|
||||
// has a serious problem.
|
||||
//
|
||||
// r.px may already have been invalidated. The px(r.px)
|
||||
// conversion may require access to *r.px (virtual inheritance).
|
||||
//
|
||||
// It is not possible to avoid spurious access violations since
|
||||
// in multithreaded programs r.px may be invalidated at any point.
|
||||
//
|
||||
|
||||
template<class Y>
|
||||
weak_ptr(weak_ptr<Y> const & r): pn(r.pn) // never throws
|
||||
{
|
||||
px = r.lock().get();
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
weak_ptr(shared_ptr<Y> const & r): px(r.px), pn(r.pn) // never throws
|
||||
{
|
||||
}
|
||||
|
||||
#if !defined(BOOST_MSVC) || (BOOST_MSVC > 1200)
|
||||
|
||||
template<class Y>
|
||||
weak_ptr & operator=(weak_ptr<Y> const & r) // never throws
|
||||
{
|
||||
px = r.lock().get();
|
||||
pn = r.pn;
|
||||
return *this;
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
weak_ptr & operator=(shared_ptr<Y> const & r) // never throws
|
||||
{
|
||||
px = r.px;
|
||||
pn = r.pn;
|
||||
return *this;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
shared_ptr<T> lock() const // never throws
|
||||
{
|
||||
#if defined(BOOST_HAS_THREADS)
|
||||
|
||||
// optimization: avoid throw overhead
|
||||
if(expired())
|
||||
{
|
||||
return shared_ptr<element_type>();
|
||||
}
|
||||
|
||||
try
|
||||
{
|
||||
return shared_ptr<element_type>(*this);
|
||||
}
|
||||
catch(bad_weak_ptr const &)
|
||||
{
|
||||
// Q: how can we get here?
|
||||
// A: another thread may have invalidated r after the use_count test above.
|
||||
return shared_ptr<element_type>();
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
// optimization: avoid try/catch overhead when single threaded
|
||||
return expired()? shared_ptr<element_type>(): shared_ptr<element_type>(*this);
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
long use_count() const // never throws
|
||||
{
|
||||
return pn.use_count();
|
||||
}
|
||||
|
||||
bool expired() const // never throws
|
||||
{
|
||||
return pn.use_count() == 0;
|
||||
}
|
||||
|
||||
void reset() // never throws in 1.30+
|
||||
{
|
||||
this_type().swap(*this);
|
||||
}
|
||||
|
||||
void swap(this_type & other) // never throws
|
||||
{
|
||||
std::swap(px, other.px);
|
||||
pn.swap(other.pn);
|
||||
}
|
||||
|
||||
void _internal_assign(T * px2, detail::shared_count const & pn2)
|
||||
{
|
||||
px = px2;
|
||||
pn = pn2;
|
||||
}
|
||||
|
||||
template<class Y> bool _internal_less(weak_ptr<Y> const & rhs) const
|
||||
{
|
||||
return pn < rhs.pn;
|
||||
}
|
||||
|
||||
// Tasteless as this may seem, making all members public allows member templates
|
||||
// to work in the absence of member template friends. (Matthew Langston)
|
||||
|
||||
#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS
|
||||
|
||||
private:
|
||||
|
||||
template<class Y> friend class weak_ptr;
|
||||
template<class Y> friend class shared_ptr;
|
||||
|
||||
#endif
|
||||
|
||||
T * px; // contained pointer
|
||||
detail::weak_count pn; // reference counter
|
||||
|
||||
}; // weak_ptr
|
||||
|
||||
template<class T, class U> inline bool operator<(weak_ptr<T> const & a, weak_ptr<U> const & b)
|
||||
{
|
||||
return a._internal_less(b);
|
||||
}
|
||||
|
||||
template<class T> void swap(weak_ptr<T> & a, weak_ptr<T> & b)
|
||||
{
|
||||
a.swap(b);
|
||||
}
|
||||
|
||||
// deprecated, provided for backward compatibility
|
||||
template<class T> shared_ptr<T> make_shared(weak_ptr<T> const & r)
|
||||
{
|
||||
return r.lock();
|
||||
}
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#ifdef BOOST_MSVC
|
||||
# pragma warning(pop)
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_WEAK_PTR_HPP_INCLUDED
|
||||
|
||||
@@ -7,9 +7,3 @@ Automatic redirection failed, please go to
|
||||
<a href="smart_ptr.htm">smart_ptr.htm</a>.
|
||||
</body>
|
||||
</html>
|
||||
<!--
|
||||
<09> Copyright Beman Dawes, 2001
|
||||
Distributed under the Boost Software License, Version 1.0.
|
||||
See accompanying file LICENSE_1_0.txt or copy at
|
||||
http://www.boost.org/LICENSE_1_0.txt
|
||||
-->
|
||||
|
||||
@@ -5,8 +5,8 @@
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
</head>
|
||||
<body text="#000000" bgColor="#ffffff">
|
||||
<h1><A href="../../index.htm"><IMG height="86" alt="boost.png (6897 bytes)" src="../../boost.png" width="277" align="middle"
|
||||
border="0"></A>intrusive_ptr class template</h1>
|
||||
<h1><IMG height="86" alt="boost.png (6897 bytes)" src="../../boost.png" width="277" align="middle">intrusive_ptr
|
||||
class template</h1>
|
||||
<p>
|
||||
<A href="#Introduction">Introduction</A><br>
|
||||
<A href="#Synopsis">Synopsis</A><br>
|
||||
@@ -31,11 +31,11 @@
|
||||
<P>The main reasons to use <STRONG>intrusive_ptr</STRONG> are:</P>
|
||||
<UL>
|
||||
<LI>
|
||||
Some existing frameworks or OSes provide objects with embedded reference
|
||||
counts;
|
||||
Some existing frameworks or OSes provide objects with embedded reference
|
||||
counts;</LI>
|
||||
<LI>
|
||||
The memory footprint of <STRONG>intrusive_ptr</STRONG>
|
||||
is the same as the corresponding raw pointer;
|
||||
The memory footprint of <STRONG>intrusive_ptr</STRONG> is the same as the
|
||||
corresponding raw pointer;</LI>
|
||||
<LI>
|
||||
<STRONG>intrusive_ptr<T></STRONG> can be constructed from an arbitrary
|
||||
raw pointer of type <STRONG>T *</STRONG>.</LI></UL>
|
||||
@@ -61,10 +61,7 @@
|
||||
|
||||
intrusive_ptr & <A href="#assignment" >operator=</A>(intrusive_ptr const & r);
|
||||
template<class Y> intrusive_ptr & <A href="#assignment" >operator=</A>(intrusive_ptr<Y> const & r);
|
||||
intrusive_ptr & <A href="#assignment" >operator=</A>(T * r);
|
||||
|
||||
void <a href="#reset" >reset</a>();
|
||||
void <a href="#reset" >reset</a>(T * r);
|
||||
template<class Y> intrusive_ptr & <A href="#assignment" >operator=</A>(T * r);
|
||||
|
||||
T & <A href="#indirection" >operator*</A>() const; // never throws
|
||||
T * <A href="#indirection" >operator-></A>() const; // never throws
|
||||
@@ -130,8 +127,8 @@
|
||||
<p><b>Effects:</b> <code>if(p != 0 && add_ref) intrusive_ptr_add_ref(p);</code>.</p>
|
||||
<p><b>Postconditions:</b> <code>get() == p</code>.</p>
|
||||
</blockquote>
|
||||
<pre>intrusive_ptr(intrusive_ptr const & r);
|
||||
template<class Y> intrusive_ptr(intrusive_ptr<Y> const & r);</pre>
|
||||
<pre>intrusive_ptr(intrusive_ptr const & r); // never throws
|
||||
template<class Y> intrusive_ptr(intrusive_ptr<Y> const & r); // never throws</pre>
|
||||
<blockquote>
|
||||
<p><b>Effects:</b> <code>if(r.get() != 0) intrusive_ptr_add_ref(r.get());</code>.</p>
|
||||
<p><b>Postconditions:</b> <code>get() == r.get()</code>.</p>
|
||||
@@ -142,22 +139,13 @@ template<class Y> intrusive_ptr(intrusive_ptr<Y> const & r);</pr
|
||||
<P><B>Effects:</B> <code>if(get() != 0) intrusive_ptr_release(get());</code>.</P>
|
||||
</BLOCKQUOTE>
|
||||
<H3><a name="assignment">assignment</a></H3>
|
||||
<pre>intrusive_ptr & operator=(intrusive_ptr const & r);
|
||||
template<class Y> intrusive_ptr & operator=(intrusive_ptr<Y> const & r);
|
||||
<pre>intrusive_ptr & operator=(intrusive_ptr const & r); // never throws
|
||||
template<class Y> intrusive_ptr & operator=(intrusive_ptr<Y> const & r); // never throws
|
||||
intrusive_ptr & operator=(T * r);</pre>
|
||||
<BLOCKQUOTE>
|
||||
<P><B>Effects:</B> Equivalent to <code>intrusive_ptr(r).swap(*this)</code>.</P>
|
||||
<P><B>Returns:</B> <code>*this</code>.</P>
|
||||
</BLOCKQUOTE>
|
||||
<H3><a name="reset">reset</a></H3>
|
||||
<pre>void reset();</pre>
|
||||
<BLOCKQUOTE>
|
||||
<P><B>Effects:</B> Equivalent to <code>intrusive_ptr().swap(*this)</code>.</P>
|
||||
</BLOCKQUOTE>
|
||||
<pre>void reset(T * r);</pre>
|
||||
<BLOCKQUOTE>
|
||||
<P><B>Effects:</B> Equivalent to <code>intrusive_ptr(r).swap(*this)</code>.</P>
|
||||
</BLOCKQUOTE>
|
||||
<h3><a name="indirection">indirection</a></h3>
|
||||
<pre>T & operator*() const; // never throws</pre>
|
||||
<blockquote>
|
||||
@@ -208,26 +196,26 @@ intrusive_ptr & operator=(T * r);</pre>
|
||||
<p><b>Returns:</b> <code>a.get() != b.get()</code>.</p>
|
||||
<p><b>Throws:</b> nothing.</p>
|
||||
</blockquote>
|
||||
<pre>template<class T, class U>
|
||||
bool operator==(intrusive_ptr<T> const & a, U * b); // never throws</pre>
|
||||
<pre>template<class T>
|
||||
bool operator==(intrusive_ptr<T> const & a, T * b); // never throws</pre>
|
||||
<blockquote>
|
||||
<p><b>Returns:</b> <code>a.get() == b</code>.</p>
|
||||
<p><b>Throws:</b> nothing.</p>
|
||||
</blockquote>
|
||||
<pre>template<class T, class U>
|
||||
bool operator!=(intrusive_ptr<T> const & a, U * b); // never throws</pre>
|
||||
<pre>template<class T>
|
||||
bool operator!=(intrusive_ptr<T> const & a, T * b); // never throws</pre>
|
||||
<blockquote>
|
||||
<p><b>Returns:</b> <code>a.get() != b</code>.</p>
|
||||
<p><b>Throws:</b> nothing.</p>
|
||||
</blockquote>
|
||||
<pre>template<class T, class U>
|
||||
bool operator==(T * a, intrusive_ptr<U> const & b); // never throws</pre>
|
||||
<pre>template<class T>
|
||||
bool operator==(T * a, intrusive_ptr<T> const & b); // never throws</pre>
|
||||
<blockquote>
|
||||
<p><b>Returns:</b> <code>a == b.get()</code>.</p>
|
||||
<p><b>Throws:</b> nothing.</p>
|
||||
</blockquote>
|
||||
<pre>template<class T, class U>
|
||||
bool operator!=(T * a, intrusive_ptr<U> const & b); // never throws</pre>
|
||||
<pre>template<class T>
|
||||
bool operator!=(T * a, intrusive_ptr<T> const & b); // never throws</pre>
|
||||
<blockquote>
|
||||
<p><b>Returns:</b> <code>a != b.get()</code>.</p>
|
||||
<p><b>Throws:</b> nothing.</p>
|
||||
@@ -290,8 +278,9 @@ intrusive_ptr & operator=(T * r);</pre>
|
||||
<p>
|
||||
$Date$</p>
|
||||
<p>
|
||||
<small>Copyright <20> 2003-2005 Peter Dimov. Distributed under the Boost Software License, Version
|
||||
1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or
|
||||
copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
|
||||
<small>Copyright <20> 2003 Peter Dimov. Permission to copy, use, modify, sell and
|
||||
distribute this document is granted provided this copyright notice appears in
|
||||
all copies. This document is provided "as is" without express or implied
|
||||
warranty, and with no claim as to its suitability for any purpose.</small></p>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
119
make_shared.html
119
make_shared.html
@@ -1,119 +0,0 @@
|
||||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||||
<html>
|
||||
<head>
|
||||
<title>make_shared and allocate_shared</title>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
</head>
|
||||
<body text="#000000" bgColor="#ffffff">
|
||||
<h1><A href="../../index.htm"><IMG height="86" alt="boost.png (6897 bytes)" src="../../boost.png" width="277" align="middle"
|
||||
border="0"></A>make_shared and allocate_shared function templates</h1>
|
||||
<p><A href="#Introduction">Introduction</A><br>
|
||||
<A href="#Synopsis">Synopsis</A><br>
|
||||
<A href="#functions">Free Functions</A><br>
|
||||
<A href="#example">Example</A><br>
|
||||
<h2><a name="Introduction">Introduction</a></h2>
|
||||
<p>Consistent use of <a href="shared_ptr.htm"><code>shared_ptr</code></a>
|
||||
can eliminate the need to use an explicit <code>delete</code>,
|
||||
but alone it provides no support in avoiding explicit <code>new</code>.
|
||||
There have been repeated requests from users for a factory function that creates
|
||||
an object of a given type and returns a <code>shared_ptr</code> to it.
|
||||
Besides convenience and style, such a function is also exception safe and
|
||||
considerably faster because it can use a single allocation for both the object
|
||||
and its corresponding control block, eliminating a significant portion of
|
||||
<code>shared_ptr</code>'s construction overhead.
|
||||
This eliminates one of the major efficiency complaints about <code>shared_ptr</code>.
|
||||
</p>
|
||||
<p>The header file <boost/make_shared.hpp> provides a family of overloaded function templates,
|
||||
<code>make_shared</code> and <code>allocate_shared</code>, to address this need.
|
||||
<code>make_shared</code> uses the global operator <code>new</code> to allocate memory,
|
||||
whereas <code>allocate_shared</code> uses an user-supplied allocator, allowing finer control.</p>
|
||||
<p>
|
||||
The rationale for choosing the name <code>make_shared</code> is that the expression
|
||||
<code>make_shared<Widget>()</code> can be read aloud and conveys the intended meaning.</p>
|
||||
<h2><a name="Synopsis">Synopsis</a></h2>
|
||||
<pre>namespace boost {
|
||||
|
||||
template<typename T> class shared_ptr;
|
||||
|
||||
template<typename T>
|
||||
shared_ptr<T> <a href="#functions">make_shared</a>();
|
||||
|
||||
template<typename T, typename A>
|
||||
shared_ptr<T> <a href="#functions">allocate_shared</a>( A const & );
|
||||
|
||||
#if !defined( BOOST_NO_CXX11_VARIADIC_TEMPLATES ) && !defined( BOOST_NO_CXX11_RVALUE_REFERENCES ) // C++0x prototypes
|
||||
|
||||
template<typename T, typename... Args>
|
||||
shared_ptr<T> <a href="#functions">make_shared</a>( Args && ... args );
|
||||
|
||||
template<typename T, typename A, typename... Args>
|
||||
shared_ptr<T> <a href="#functions">allocate_shared</a>( A const & a, Args && ... args );
|
||||
|
||||
#else // no C++0X support
|
||||
|
||||
template<typename T, typename Arg1 >
|
||||
shared_ptr<T> <a href="#functions">make_shared</a>( Arg1 const & arg1 );
|
||||
template<typename T, typename Arg1, typename Arg2 >
|
||||
shared_ptr<T> <a href="#functions">make_shared</a>( Arg1 const & arg1, Arg2 const & arg2 );
|
||||
// ...
|
||||
template<typename T, typename Arg1, typename Arg2, ..., typename ArgN >
|
||||
shared_ptr<T> <a href="#functions">make_shared</a>( Arg1 const & arg1, Arg2 const & arg2, ..., ArgN const & argN );
|
||||
|
||||
template<typename T, typename A, typename Arg1 >
|
||||
shared_ptr<T> <a href="#functions">allocate_shared</a>( A const & a, Arg1 const & arg1 );
|
||||
template<typename T, typename A, typename Arg1, typename Arg2 >
|
||||
shared_ptr<T> <a href="#functions">allocate_shared</a>( Arg1 const & arg1, Arg2 const & arg2 );
|
||||
// ...
|
||||
template<typename T, typename A, typename Arg1, typename Arg2, ..., typename ArgN >
|
||||
shared_ptr<T> <a href="#functions">allocate_shared</a>( A const & a, Arg1 const & arg1, Arg2 const & arg2, ..., ArgN const & argN );
|
||||
|
||||
#endif
|
||||
}</pre>
|
||||
<h2><a name="functions">Free Functions</a></h2>
|
||||
<pre>template<class T, class... Args>
|
||||
shared_ptr<T> make_shared( Args && ... args );
|
||||
template<class T, class A, class... Args>
|
||||
shared_ptr<T> allocate_shared( A const & a, Args && ... args );</pre>
|
||||
<blockquote>
|
||||
<p><b>Requires:</b> The expression <code>new( pv ) T( std::forward<Args>(args)... )</code>,
|
||||
where <code>pv</code> is a <code>void*</code> pointing to storage suitable
|
||||
to hold an object of type <code>T</code>,
|
||||
shall be well-formed. <code>A</code> shall be an <em>Allocator</em>,
|
||||
as described in section 20.1.5 (<stong>Allocator requirements</strong>) of the C++ Standard.
|
||||
The copy constructor and destructor of <code>A</code> shall not throw.</p>
|
||||
<p><b>Effects:</b> Allocates memory suitable for an object of type <code>T</code>
|
||||
and constructs an object in it via the placement new expression <code>new( pv ) T()</code>
|
||||
or <code>new( pv ) T( std::forward<Args>(args)... )</code>.
|
||||
<code>allocate_shared</code> uses a copy of <code>a</code> to allocate memory.
|
||||
If an exception is thrown, has no effect.</p>
|
||||
<p><b>Returns:</b> A <code>shared_ptr</code> instance that stores and owns the address
|
||||
of the newly constructed object of type <code>T</code>.</p>
|
||||
<p><b>Postconditions:</b> <code>get() != 0 && use_count() == 1</code>.</p>
|
||||
<p><b>Throws:</b> <code>bad_alloc</code>, or an exception thrown from <code>A::allocate</code>
|
||||
or the constructor of <code>T</code>.</p>
|
||||
<p><b>Notes:</b> This implementation allocates the memory required for the
|
||||
returned <code>shared_ptr</code> and an object of type <code>T</code> in a single
|
||||
allocation. This provides efficiency equivalent to an intrusive smart pointer.</p>
|
||||
<p>The prototypes shown above are used if your compiler supports rvalue references
|
||||
and variadic templates. They perfectly forward the <code>args</code> parameters to
|
||||
the constructors of <code>T</code>.</p>
|
||||
<p>Otherwise, the implementation will fall back on
|
||||
forwarding the arguments to the constructors of <code>T</code> as const references.
|
||||
If you need to pass a non-const reference to a constructor of <code>T</code>,
|
||||
you may do so by wrapping the parameter in a call to <code>boost::ref</code>.
|
||||
In addition, you will be
|
||||
limited to a maximum of 9 arguments (not counting the allocator argument of
|
||||
allocate_shared).</p>
|
||||
</blockquote>
|
||||
<h2><a name="example">Example</a></h2>
|
||||
<pre>boost::shared_ptr<std::string> x = boost::make_shared<std::string>("hello, world!");
|
||||
std::cout << *x;</pre>
|
||||
<hr>
|
||||
<p>
|
||||
$Date: 2008-05-19 15:42:39 -0400 (Mon, 19 May 2008) $</p>
|
||||
<p><small>Copyright 2008 Peter Dimov. Copyright 2008 Frank Mori Hess.
|
||||
Distributed under the Boost Software License,
|
||||
Version 1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A>
|
||||
or copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
|
||||
</body>
|
||||
</html>
|
||||
@@ -1,257 +0,0 @@
|
||||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||||
<html>
|
||||
<head>
|
||||
<title>make_shared and allocate_shared</title>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
</head>
|
||||
<body text="#000000" bgColor="#ffffff" link="#0000ff" vlink="#0000ff">
|
||||
<h1><IMG height="86" alt="boost.png (6897 bytes)" src="../../boost.png"
|
||||
width="277" align="middle" border="0">make_shared and allocate_shared
|
||||
for arrays</h1>
|
||||
<p><A href="#Introduction">Introduction</A><br>
|
||||
<A href="#Synopsis">Synopsis</A><br>
|
||||
<A href="#functions">Free Functions</A><br>
|
||||
<A href="#example">Example</A><br>
|
||||
<A href="#history">History</A><br></p>
|
||||
<h2><a name="Introduction">Introduction</a></h2>
|
||||
<p>Originally the Boost function templates <code>make_shared</code> and
|
||||
<code>allocate_shared</code> were for efficient allocation of single
|
||||
objects only. There was a need to have efficient, single, allocation of
|
||||
arrays. One criticism of <a href="shared_array.htm">shared_array</a> was
|
||||
always the lack of a <a href="make_shared.html">make_shared</a> utility
|
||||
which ensures only a single allocation for an array.</p>
|
||||
<p>The header files <boost/smart_ptr/make_shared_array.hpp> and
|
||||
<boost/smart_ptr/allocate_shared_array.hpp> provide new function
|
||||
templates, <code>make_shared</code> and <code>allocate_shared</code>,
|
||||
to address this need. <code>make_shared</code> uses the global
|
||||
operator <code>new</code> to allocate memory, whereas
|
||||
<code>allocate_shared</code> uses an user-supplied allocator,
|
||||
allowing finer control.</p>
|
||||
<h2><a name="Synopsis">Synopsis</a></h2>
|
||||
<pre>namespace boost {
|
||||
template<typename U> // U = T[]
|
||||
shared_ptr<U> <a href="#functions">make_shared</a>(size_t size);
|
||||
|
||||
template<typename U, typename A> // U = T[]
|
||||
shared_ptr<U> <a href="#functions">allocate_shared</a>(const A& allocator, size_t size);
|
||||
|
||||
#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
|
||||
template<typename U, typename... Args> // U = T[]
|
||||
shared_ptr<U> <a href="#functions">make_shared</a>(size_t size, Args&&... args);
|
||||
|
||||
template<typename U, typename... Args> // U = T[N]
|
||||
shared_ptr<U> <a href="#functions">make_shared</a>(Args&&... args);
|
||||
|
||||
template<typename U, typename A, typename... Args> // U = T[]
|
||||
shared_ptr<U> <a href="#functions">allocate_shared</a>(const A& allocator, size_t size, Args&&... args);
|
||||
|
||||
template<typename U, typename A, typename... Args> // U = T[N]
|
||||
shared_ptr<U> <a href="#functions">allocate_shared</a>(const A& allocator, Args&&... args);
|
||||
#endif
|
||||
|
||||
#if !defined(BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX)
|
||||
template<typename U, typename... Args> // U = T[N]
|
||||
shared_ptr<U> <a href="#functions">make_shared</a>(const T (&list)[N]);
|
||||
|
||||
template<typename U, typename... Args> // U = T[][N]
|
||||
shared_ptr<U> <a href="#functions">make_shared</a>(size_t size, const T (&list)[N]);
|
||||
|
||||
template<typename U, typename... Args> // U = T[M][N]
|
||||
shared_ptr<U> <a href="#functions">make_shared</a>(const T (&list)[N]);
|
||||
|
||||
template<typename U, typename A, typename... Args> // U = T[N]
|
||||
shared_ptr<T[> <a href="#functions">allocate_shared</a>(const A& allocator, const T (&list)[N]);
|
||||
|
||||
template<typename U, typename A, typename... Args> // U = T[][N]
|
||||
shared_ptr<U> <a href="#functions">allocate_shared</a>(const A& allocator, size_t size, const T (&list)[N]);
|
||||
|
||||
template<typename U, typename A, typename... Args> // U = T[M][N]
|
||||
shared_ptr<U> <a href="#functions">allocate_shared</a>(const A& allocator, const T (&list)[N]);
|
||||
|
||||
#if !defined(BOOST_NO_CXX11_HDR_INITIALIZER_LIST)
|
||||
template<typename U, typename... Args> // U = T[]
|
||||
shared_ptr<U> <a href="#functions">make_shared</a>(initializer_list<T> list);
|
||||
|
||||
template<typename U, typename A, typename... Args> // U = T[]
|
||||
shared_ptr<U> <a href="#functions">allocate_shared</a>(const A& allocator, initializer_list<T> list);
|
||||
#endif
|
||||
|
||||
#if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
|
||||
template<typename U> // U = T[]
|
||||
shared_ptr<U> <a href="#functions">make_shared</a>(size_t size, T&& value);
|
||||
|
||||
template<typename U> // U = T[N]
|
||||
shared_ptr<U> <a href="#functions">make_shared</a>(T&& value);
|
||||
|
||||
template<typename U, typename A> // U = T[]
|
||||
shared_ptr<U> <a href="#functions">allocate_shared</a>(const A& allocator, size_t size, T&& value);
|
||||
|
||||
template<typename U, typename A> // U = T[N]
|
||||
shared_ptr<U> <a href="#functions">allocate_shared</a>(const A& allocator, T&& value);
|
||||
#endif
|
||||
#endif
|
||||
|
||||
template<typename U> // U = T[]
|
||||
shared_ptr<U> <a href="#functions">make_shared_noinit</a>(size_t size);
|
||||
|
||||
template<typename U> // U = T[N]
|
||||
shared_ptr<U> <a href="#functions">make_shared_noinit</a>();
|
||||
|
||||
template<typename U, typename A> // U = T[]
|
||||
shared_ptr<U> <a href="#functions">allocate_shared_noinit</a>(const A& allocator, size_t size);
|
||||
|
||||
template<typename U, typename A> // U = T[N]
|
||||
shared_ptr<U> <a href="#functions">allocate_shared_noinit</a>(const A& allocator);
|
||||
}</pre>
|
||||
<h2><a name="functions">Free Functions</a></h2>
|
||||
<pre>template<typename U, typename... Args> // U = T[]
|
||||
shared_ptr<U> make_shared(size_t size, Args&&... args);
|
||||
|
||||
template<typename U, typename A, typename... Args> // U = T[]
|
||||
shared_ptr<U> allocate_shared(const A& allocator, size_t size, Args&&... args);</pre>
|
||||
<blockquote>
|
||||
<p><b>Requires:</b> The expression
|
||||
<code>new(pointer) T(forward<Args>(args)...)</code>, where
|
||||
<code>pointer</code> is a <code>void*</code> pointing to storage
|
||||
suitable to hold an object of type <code>T</code>, shall be
|
||||
well-formed. <code>A</code> shall be an <em>Allocator</em>, as
|
||||
described in section 20.1.5 (<strong>Allocator requirements</strong>)
|
||||
of the C++ Standard. The copy constructor and destructor of
|
||||
<code>A</code> shall not throw.</p>
|
||||
<p><b>Effects:</b> Allocates memory suitable for an array of type
|
||||
<code>T</code> and size <code>size</code> and constructs an array
|
||||
of objects in it via the placement new expression
|
||||
<code>new(pointer) T()</code> or
|
||||
<code>new(pointer) T(args...)</code>.
|
||||
<code>allocate_shared</code> uses a copy of
|
||||
<code>allocator</code> to allocate memory. If an exception is thrown,
|
||||
has no effect.</p>
|
||||
<p><b>Returns:</b> A <code>shared_ptr</code> instance that stores and
|
||||
owns the address of the newly constructed array of type <code>T</code>
|
||||
and size <code>size</code>.</p>
|
||||
<p><b>Postconditions:</b>
|
||||
<code>get() != 0 && use_count() == 1</code>.</p>
|
||||
<p><b>Throws:</b> <code>bad_alloc</code>, or an exception thrown from
|
||||
<code>A::allocate</code> or the constructor of <code>T</code>.</p>
|
||||
<p><b>Notes:</b> This implementation allocates the memory required for
|
||||
the returned <code>shared_ptr</code> and an array of type
|
||||
<code>T</code> of size <code>size</code> in a single allocation. This
|
||||
provides efficiency to equivalent to an intrusive smart array
|
||||
pointer.</p>
|
||||
<p>The prototypes shown above are used if your compiler supports r-value
|
||||
references and variadic templates. They perfectly forward the
|
||||
<code>args</code> parameters to the constructors of
|
||||
<code>T</code> for each array element.</p>
|
||||
<p>Otherwise, you can use the overloads which take only the array size
|
||||
(and the allocator in case of <code>allocate_shared</code>) and do not
|
||||
take any constructor arguments. These overloads invoke the default
|
||||
constructor of <code>T</code> for each array element.</p>
|
||||
</blockquote>
|
||||
<pre>template<typename U, typename... Args> // U = T[N]
|
||||
shared_ptr<U> make_shared(Args&&... args);
|
||||
|
||||
template<typename U, typename A, typename... Args> // U = T[N]
|
||||
shared_ptr<U> allocate_shared(const A& allocator, Args&&... args);</pre>
|
||||
<blockquote>
|
||||
<p><b>Description:</b> These overloads of the utilities above are for a
|
||||
fixed size array.</p>
|
||||
</blockquote>
|
||||
<pre>template<typename U, typename... Args> // U = T[]
|
||||
shared_ptr<U> make_shared(initializer_list<T> list);
|
||||
|
||||
template<typename U, typename A, typename... Args> // U = T[]
|
||||
shared_ptr<U> allocate_shared(const A& allocator, initializer_list<T> list);</pre>
|
||||
<blockquote>
|
||||
<p><b>Description:</b> These overloads initialize the array elements
|
||||
from the initializer list.</p>
|
||||
</blockquote>
|
||||
<pre>template<typename U, typename... Args> // U = T[N]
|
||||
shared_ptr<U> make_shared(const T (&list)[N]);
|
||||
|
||||
template<typename U, typename A, typename... Args> // U = T[N]
|
||||
shared_ptr<U> allocate_shared(const A& allocator, const T (&list)[N]);</pre>
|
||||
<blockquote>
|
||||
<p><b>Description:</b> These overloads of the utilities above are for a
|
||||
fixed size array.</p>
|
||||
</blockquote>
|
||||
<pre>template<typename U, typename... Args> // U = T[][N]
|
||||
shared_ptr<U> make_shared(size_t size, const T (&list)[N]);
|
||||
|
||||
template<typename U, typename A, typename... Args> // U = T[][N]
|
||||
shared_ptr<U> allocate_shared(const A& allocator, size_t size, const T (&list)[N]);</pre>
|
||||
<blockquote>
|
||||
<p><b>Description:</b> These overloads initialize inner array elements
|
||||
from the initializer list.</p>
|
||||
</blockquote>
|
||||
<pre>template<typename U, typename... Args> // U = T[M][N]
|
||||
shared_ptr<U> make_shared(const T (&list)[N]);
|
||||
|
||||
template<typename U, typename A, typename... Args> // U = T[M][N]
|
||||
shared_ptr<U> allocate_shared(const A& allocator, const T (&list)[N]);</pre>
|
||||
<blockquote>
|
||||
<p><b>Description:</b> These overloads of the utilities above are for a
|
||||
fixed size array.</p>
|
||||
</blockquote>
|
||||
<pre>template<typename U> // U = T[]
|
||||
shared_ptr<U> make_shared(size_t size, T&& value);
|
||||
|
||||
template<typename U, typename A> // U = T[]
|
||||
shared_ptr<U> allocate_shared(const A& allocator, size_t size, T&& value);</pre>
|
||||
<blockquote>
|
||||
<p><b>Description:</b> These overloads initialize array elements with
|
||||
the given value.</p>
|
||||
</blockquote>
|
||||
<pre>template<typename U> // U = T[N]
|
||||
shared_ptr<U> make_shared(T&& value);
|
||||
|
||||
template<typename U, typename A> // U = T[N]
|
||||
shared_ptr<U> allocate_shared(const A& allocator, T&& value);</pre>
|
||||
<blockquote>
|
||||
<p><b>Description:</b> These overloads of the utilities above are for a
|
||||
fixed size array.</p>
|
||||
</blockquote>
|
||||
<pre>template<typename U> // U = T[]
|
||||
shared_ptr<U> make_shared_noinit(size_t size);
|
||||
|
||||
template<typename U, typename A> // U = T[]
|
||||
shared_ptr<U> allocate_shared_noinit(const A& allocator, size_t size);</pre>
|
||||
<blockquote>
|
||||
<p><b>Description:</b> These overloads do not perform any value
|
||||
initialization of elements.</p>
|
||||
</blockquote>
|
||||
<pre>template<typename U> // U = T[N]
|
||||
shared_ptr<U> make_shared_noinit();
|
||||
|
||||
template<typename U, typename A> // U = T[N]
|
||||
shared_ptr<U> allocate_shared_noinit(const A& allocator);</pre>
|
||||
<blockquote>
|
||||
<p><b>Description:</b> These overloads of the utilities above are for a
|
||||
fixed size array.</p>
|
||||
</blockquote>
|
||||
<h2><a name="example">Example</a></h2>
|
||||
<p>An example of each overload of make_shared for arrays:</p>
|
||||
<blockquote>
|
||||
<pre>boost::shared_ptr<int[]> a1 = boost::make_shared<int[]>(size);
|
||||
boost::shared_ptr<point[]> a2 = boost::make_shared<point[]>(size, x, y);
|
||||
boost::shared_ptr<point[5]> a3 = boost::make_shared<point[5]>(x, y);
|
||||
boost::shared_ptr<int[]> a4 = boost::make_shared<int[]>({1, 2, 3});
|
||||
boost::shared_ptr<int[3]> a5 = boost::make_shared<int[3]>({1, 2, 3});
|
||||
boost::shared_ptr<int[][3]> a6 = boost::make_shared<int[][3]>(size, {1, 2, 3});
|
||||
boost::shared_ptr<int[5][3]> a7 = boost::make_shared<int[5][3]>({1, 2, 3});
|
||||
boost::shared_ptr<point[]> a8 = boost::make_shared<point[]>(size, {x, y});
|
||||
boost::shared_ptr<point[5]> a9 = boost::make_shared<point[5]>({x, y});
|
||||
boost::shared_ptr<int[]> a10 = boost::make_shared_noinit<int[]>(size);
|
||||
boost::shared_ptr<int[5]> a11 = boost::make_shared_noinit<int[5]>();</pre>
|
||||
</blockquote>
|
||||
<h2><a name="history">History</a></h2>
|
||||
<p>November 2012. Glen Fernandes contributed implementations of
|
||||
make_shared and allocate_shared for arrays.</p>
|
||||
<hr>
|
||||
<p>$Date: 2012-10-30 10:12:25 -0800 (Tue, 30 Oct 2012) $</p>
|
||||
<p><small>Copyright 2012 Glen Fernandes. Distributed under the Boost
|
||||
Software License, Version 1.0. See accompanying file
|
||||
<A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or copy at
|
||||
<A href="http://www.boost.org/LICENSE_1_0.txt">
|
||||
http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
|
||||
</body>
|
||||
</html>
|
||||
@@ -1,105 +0,0 @@
|
||||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
|
||||
<html>
|
||||
<head>
|
||||
<title>pointer_cast.hpp</title>
|
||||
</head>
|
||||
<body>
|
||||
<h1><IMG height="86" alt="C++ Boost" src="../../boost.png" width="277" align="middle" border="0">Pointer
|
||||
cast functions</h1>
|
||||
<p>The pointer cast functions (<code>boost::static_pointer_cast</code> <code>boost::dynamic_pointer_cast</code>
|
||||
<code>boost::reinterpret_pointer_cast</code> <code>boost::const_pointer_cast</code>)
|
||||
provide a way to write generic pointer castings for raw pointers. The functions
|
||||
are defined in <CITE><A href="../../boost/pointer_cast.hpp">boost/pointer_cast.hpp</A>.</CITE></p>
|
||||
<P>There is test/example code in <CITE><A href="test/pointer_cast_test.cpp">pointer_cast_test.cpp</A></CITE>.</p>
|
||||
<h2><a name="rationale">Rationale</a></h2>
|
||||
<P>Boost smart pointers usually overload those functions to provide a mechanism to
|
||||
emulate pointers casts. For example, <code>boost::shared_ptr<...></code> implements
|
||||
a static pointer cast this way:</P>
|
||||
<pre>
|
||||
template<class T, class U>
|
||||
shared_ptr<T> static_pointer_cast(shared_ptr<U> const &r);
|
||||
</pre>
|
||||
<P>Pointer cast functions from <CITE><A href="../../boost/pointer_cast.hpp">boost/pointer_cast.hpp</A></CITE>
|
||||
are overloads of <code>boost::static_pointer_cast</code>, <code>boost::dynamic_pointer_cast</code>,
|
||||
<code>boost::reinterpret_pointer_cast</code> and <code>boost::const_pointer_cast</code>
|
||||
for raw pointers. This way when developing pointer type independent classes,
|
||||
for example, memory managers or shared memory compatible classes, the same code
|
||||
can be used for raw and smart pointers.</p>
|
||||
<H2><A name="synopsis">Synopsis</A></H2>
|
||||
<BLOCKQUOTE>
|
||||
<PRE>
|
||||
namespace boost {
|
||||
|
||||
template<class T, class U>
|
||||
inline T* static_pointer_cast(U *ptr)
|
||||
{ return static_cast<T*>(ptr); }
|
||||
|
||||
template<class T, class U>
|
||||
inline T* dynamic_pointer_cast(U *ptr)
|
||||
{ return dynamic_cast<T*>(ptr); }
|
||||
|
||||
template<class T, class U>
|
||||
inline T* const_pointer_cast(U *ptr)
|
||||
{ return const_cast<T*>(ptr); }
|
||||
|
||||
template<class T, class U>
|
||||
inline T* reinterpret_pointer_cast(U *ptr)
|
||||
{ return reinterpret_cast<T*>(ptr); }
|
||||
|
||||
} // namespace boost
|
||||
</PRE>
|
||||
</BLOCKQUOTE>
|
||||
<P>As you can see from the above synopsis, the pointer cast functions are just
|
||||
wrappers around standard C++ cast operators.</P>
|
||||
<H2><A name="example">Example</A></H2>
|
||||
<BLOCKQUOTE>
|
||||
<PRE>
|
||||
#include <boost/pointer_cast.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
|
||||
class base
|
||||
{
|
||||
public:
|
||||
|
||||
virtual ~base()
|
||||
{
|
||||
}
|
||||
};
|
||||
|
||||
class derived: public base
|
||||
{
|
||||
};
|
||||
|
||||
template <class BasePtr>
|
||||
void check_if_it_is_derived(const BasePtr &ptr)
|
||||
{
|
||||
assert(boost::dynamic_pointer_cast<derived>(ptr) != 0);
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
<I>// Create a raw and a shared_ptr</I>
|
||||
|
||||
base *ptr = new derived;
|
||||
boost::shared_ptr<base> sptr(new derived);
|
||||
|
||||
<I>// Check that base pointer points actually to derived class</I>
|
||||
|
||||
check_if_it_is_derived(ptr);
|
||||
check_if_it_is_derived(sptr);
|
||||
|
||||
// <EM>Ok!</EM>
|
||||
|
||||
delete ptr;
|
||||
return 0;
|
||||
}</PRE>
|
||||
</BLOCKQUOTE>
|
||||
<P>The example demonstrates how the generic pointer casts help us create pointer
|
||||
independent code.</P>
|
||||
<hr>
|
||||
<p>Revised: $Date$</p>
|
||||
<p>Copyright 2005 Ion Gazta<74>aga. Use, modification, and distribution are subject to
|
||||
the Boost Software License, Version 1.0. (See accompanying file <A href="../../LICENSE_1_0.txt">
|
||||
LICENSE_1_0.txt</A> or a copy at <<A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>>.)</p>
|
||||
</body>
|
||||
</html>
|
||||
@@ -1,108 +0,0 @@
|
||||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||||
<html>
|
||||
<head>
|
||||
<title>pointer_to_other.hpp</title>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
</head>
|
||||
<body bgcolor="#ffffff" text="#000000">
|
||||
<h1><img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle" WIDTH="277" HEIGHT="86">Header
|
||||
<a href="../../boost/pointer_to_other.hpp">boost/pointer_to_other.hpp</a></h1>
|
||||
<p>
|
||||
The pointer to other utility provides a way, given a source pointer type,
|
||||
to obtain a pointer of the same type to another pointee type. The utility is
|
||||
defined in <cite><a href="../../boost/pointer_to_other.hpp">boost/pointer_to_other.hpp</a>.</cite></p>
|
||||
<p>There is test/example code in <cite><a href="test/pointer_to_other_test.cpp">pointer_to_other_test.cpp</a></cite>.</p>
|
||||
<h2><a name="contents">Contents</a></h2>
|
||||
<ul>
|
||||
<li>
|
||||
<a href="#rationale">Rationale</a>
|
||||
<li>
|
||||
<a href="#synopsis">Synopsis</a>
|
||||
<li>
|
||||
<a href="#example">Example</a></li>
|
||||
</ul>
|
||||
<h2><a name="rationale">Rationale</a></h2>
|
||||
<p>When building pointer independent classes, like memory managers, allocators, or
|
||||
containers, there is often a need to define pointers generically, so that if a
|
||||
template parameter represents a pointer (for example, a raw or smart pointer to
|
||||
an int), we can define another pointer of the same type to another pointee (a
|
||||
raw or smart pointer to a float.)</p>
|
||||
<pre>template <class IntPtr>
|
||||
class FloatPointerHolder
|
||||
{
|
||||
<em>// Let's define a pointer to a float</em>
|
||||
typedef typename boost::pointer_to_other
|
||||
<IntPtr, float>::type float_ptr_t;
|
||||
float_ptr_t float_ptr;
|
||||
};</pre>
|
||||
<h2><a name="synopsis">Synopsis</a></h2>
|
||||
<pre>
|
||||
namespace boost {
|
||||
|
||||
template<class T, class U>
|
||||
struct pointer_to_other;
|
||||
|
||||
template<class T, class U, template <class> class Sp>
|
||||
struct pointer_to_other< Sp<T>, U >
|
||||
{
|
||||
typedef Sp<U> type;
|
||||
};
|
||||
|
||||
template<class T, class T2, class U,
|
||||
template <class, class> class Sp>
|
||||
struct pointer_to_other< Sp<T, T2>, U >
|
||||
{
|
||||
typedef Sp<U, T2> type;
|
||||
};
|
||||
|
||||
template<class T, class T2, class T3, class U,
|
||||
template <class, class, class> class Sp>
|
||||
struct pointer_to_other< Sp<T, T2, T3>, U >
|
||||
{
|
||||
typedef Sp<U, T2, T3> type;
|
||||
};
|
||||
|
||||
template<class T, class U>
|
||||
struct pointer_to_other< T*, U >
|
||||
{
|
||||
typedef U* type;
|
||||
};
|
||||
|
||||
} <em>// namespace boost</em></pre>
|
||||
<p>If these definitions are not correct for a specific smart pointer, we can define
|
||||
a specialization of pointer_to_other.</p>
|
||||
<h2><a name="example">Example</a></h2>
|
||||
<pre><em>// Let's define a memory allocator that can
|
||||
// work with raw and smart pointers</em>
|
||||
|
||||
#include <boost/pointer_to_other.hpp>
|
||||
|
||||
template <class VoidPtr>
|
||||
class memory_allocator
|
||||
{<em>
|
||||
// Predefine a memory_block </em>
|
||||
struct block;<em>
|
||||
|
||||
// Define a pointer to a memory_block from a void pointer
|
||||
// If VoidPtr is void *, block_ptr_t is block*
|
||||
// If VoidPtr is smart_ptr<void>, block_ptr_t is smart_ptr<block></em>
|
||||
typedef typename boost::pointer_to_other
|
||||
<VoidPtr, block>::type block_ptr_t;
|
||||
|
||||
struct block
|
||||
{
|
||||
std::size_t size;
|
||||
block_ptr_t next_block;
|
||||
};
|
||||
|
||||
block_ptr_t free_blocks;
|
||||
};</pre>
|
||||
<p>As we can see, using pointer_to_other we can create pointer independent code.</p>
|
||||
<hr>
|
||||
<p>Last revised: $Date$</p>
|
||||
<p><small>Copyright 2005, 2006 Ion Gazta<74>aga and Peter Dimov. Use, modification,
|
||||
and distribution are subject to the Boost Software License, Version 1.0.<br>
|
||||
(See accompanying file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or a
|
||||
copy at < <a href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>>.)</small></p>
|
||||
</body>
|
||||
</html>
|
||||
@@ -5,8 +5,8 @@
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
</head>
|
||||
<body bgcolor="#ffffff" text="#000000">
|
||||
<h1><A href="../../index.htm"><img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle" width="277" height="86"
|
||||
border="0"></A>scoped_array class template</h1>
|
||||
<h1><img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle" width="277" height="86"><a name="scoped_array">scoped_array</a>
|
||||
class template</h1>
|
||||
<p>The <b>scoped_array</b> class template stores a pointer to a dynamically
|
||||
allocated array. (Dynamically allocated arrays are allocated with the C++ <b>new[]</b>
|
||||
expression.) The array pointed to is guaranteed to be deleted, either on
|
||||
@@ -14,9 +14,10 @@
|
||||
<p>The <b>scoped_array</b> template is a simple solution for simple needs. It
|
||||
supplies a basic "resource acquisition is initialization" facility, without
|
||||
shared-ownership or transfer-of-ownership semantics. Both its name and
|
||||
enforcement of semantics (by being <a href="../utility/utility.htm#Class_noncopyable">
|
||||
noncopyable</a>) signal its intent to retain ownership solely within the
|
||||
current scope. Because it is <a href="../utility/utility.htm#Class_noncopyable">noncopyable</a>,
|
||||
enforcement of semantics (by being
|
||||
<a href="../utility/utility.htm#Class_noncopyable">noncopyable</a>) signal its intent to retain ownership solely within the
|
||||
current scope. Because it is
|
||||
<a href="../utility/utility.htm#Class_noncopyable">noncopyable</a>,
|
||||
it is safer than <b>shared_array</b> for pointers which should not be copied.</p>
|
||||
<p>Because <b>scoped_array</b> is so simple, in its usual implementation every
|
||||
operation is as fast as a built-in array pointer and it has no more space
|
||||
@@ -47,8 +48,6 @@
|
||||
T & <a href="#operator[]">operator[]</a>(std::ptrdiff_t i) const; // never throws
|
||||
T * <a href="#get">get</a>() const; // never throws
|
||||
|
||||
operator <A href="#conversions" ><i>unspecified-bool-type</i></A>() const; // never throws
|
||||
|
||||
void <a href="#swap">swap</a>(scoped_array & b); // never throws
|
||||
};
|
||||
|
||||
@@ -91,10 +90,6 @@
|
||||
<pre>T * get() const; // never throws</pre>
|
||||
<p>Returns the stored pointer. <b>T</b> need not be a complete type. See the smart
|
||||
pointer <a href="smart_ptr.htm#common_requirements">common requirements</a>.</p>
|
||||
<h3><a name="conversions">conversions</a></h3>
|
||||
<pre>operator <i>unspecified-bool-type</i> () const; // never throws</pre>
|
||||
<p>Returns an unspecified value that, when used in boolean contexts, is equivalent
|
||||
to <code>get() != 0</code>.</p>
|
||||
<h3><a name="swap">swap</a></h3>
|
||||
<pre>void swap(scoped_array & b); // never throws</pre>
|
||||
<p>Exchanges the contents of the two smart pointers. <b>T</b> need not be a
|
||||
@@ -106,11 +101,11 @@
|
||||
<p>Equivalent to <b>a.swap(b)</b>. Matches the interface of <b>std::swap</b>.
|
||||
Provided as an aid to generic programming.</p>
|
||||
<hr>
|
||||
<p>Revised <!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B %Y" startspan-->
|
||||
09 January 2003<!--webbot bot="Timestamp" endspan i-checksum="32310"--></p>
|
||||
<p><small>Copyright 1999 Greg Colvin and Beman Dawes. Copyright 2002 Darin Adler.
|
||||
Copyright 2002-2005 Peter Dimov. Distributed under the Boost Software License, Version
|
||||
1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or
|
||||
copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
|
||||
<p>Revised <!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B %Y" startspan-->09 January 2003<!--webbot bot="Timestamp" endspan i-checksum="32310"--></p>
|
||||
<p>Copyright 1999 Greg Colvin and Beman Dawes. Copyright 2002 Darin Adler.
|
||||
Permission to copy, use, modify, sell and distribute this document is granted
|
||||
provided this copyright notice appears in all copies. This document is provided
|
||||
"as is" without express or implied warranty, and with no claim as to its
|
||||
suitability for any purpose.</p>
|
||||
</body>
|
||||
</html>
|
||||
</html>
|
||||
@@ -5,8 +5,8 @@
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
</head>
|
||||
<body bgcolor="#ffffff" text="#000000">
|
||||
<h1><A href="../../index.htm"><img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle" width="277" height="86"
|
||||
border="0"></A>scoped_ptr class template</h1>
|
||||
<h1><img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle" width="277" height="86"><a name="scoped_ptr">scoped_ptr</a>
|
||||
class template</h1>
|
||||
<p>The <b>scoped_ptr</b> class template stores a pointer to a dynamically allocated
|
||||
object. (Dynamically allocated objects are allocated with the C++ <b>new</b> expression.)
|
||||
The object pointed to is guaranteed to be deleted, either on destruction of the <b>scoped_ptr</b>,
|
||||
@@ -48,8 +48,6 @@
|
||||
T * <a href="#indirection">operator-></a>() const; // never throws
|
||||
T * <a href="#get">get</a>() const; // never throws
|
||||
|
||||
operator <A href="#conversions" ><i>unspecified-bool-type</i></A>() const; // never throws
|
||||
|
||||
void <a href="#swap">swap</a>(scoped_ptr & b); // never throws
|
||||
};
|
||||
|
||||
@@ -92,10 +90,6 @@
|
||||
<pre>T * get() const; // never throws</pre>
|
||||
<p>Returns the stored pointer. <b>T</b> need not be a complete type. See the smart
|
||||
pointer <a href="smart_ptr.htm#common_requirements">common requirements</a>.</p>
|
||||
<h3><a name="conversions">conversions</a></h3>
|
||||
<pre>operator <i>unspecified-bool-type</i> () const; // never throws</pre>
|
||||
<p>Returns an unspecified value that, when used in boolean contexts, is equivalent
|
||||
to <code>get() != 0</code>.</p>
|
||||
<h3><a name="swap">swap</a></h3>
|
||||
<pre>void swap(scoped_ptr & b); // never throws</pre>
|
||||
<p>Exchanges the contents of the two smart pointers. <b>T</b> need not be a
|
||||
@@ -156,8 +150,8 @@ Buckle my shoe</pre>
|
||||
<p>One common usage of <b>scoped_ptr</b> is to implement a handle/body (also called
|
||||
pimpl) idiom which avoids exposing the body (implementation) in the header
|
||||
file.</p>
|
||||
<p>The <a href="example/scoped_ptr_example_test.cpp">scoped_ptr_example_test.cpp</a>
|
||||
sample program includes a header file, <a href="example/scoped_ptr_example.hpp">scoped_ptr_example.hpp</a>,
|
||||
<p>The <a href="example/scoped_ptr_example_test.cpp">scoped_ptr_example_test.cpp</a> sample
|
||||
program includes a header file, <a href="example/scoped_ptr_example.hpp">scoped_ptr_example.hpp</a>,
|
||||
which uses a <b>scoped_ptr<></b> to an incomplete type to hide the
|
||||
implementation. The instantiation of member functions which require a complete
|
||||
type occurs in the <a href="example/scoped_ptr_example.cpp">scoped_ptr_example.cpp</a>
|
||||
@@ -171,11 +165,12 @@ Buckle my shoe</pre>
|
||||
given context. Use <STRONG>std::auto_ptr</STRONG> where transfer of ownership
|
||||
is required. (supplied by Dave Abrahams)</p>
|
||||
<hr>
|
||||
<p>Revised <!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B %Y" startspan -->
|
||||
<p>Revised <!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B %Y" startspan -->
|
||||
09 January 2003<!--webbot bot="Timestamp" endspan i-checksum="32310" --></p>
|
||||
<p><small>Copyright 1999 Greg Colvin and Beman Dawes. Copyright 2002 Darin Adler.
|
||||
Copyright 2002-2005 Peter Dimov. Distributed under the Boost Software License, Version
|
||||
1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or
|
||||
copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
|
||||
<p>Copyright 1999 Greg Colvin and Beman Dawes. Copyright 2002 Darin Adler.
|
||||
Copyright 2002 Peter Dimov. Permission to copy, use, modify, sell and
|
||||
distribute this document is granted provided this copyright notice appears in
|
||||
all copies. This document is provided "as is" without express or implied
|
||||
warranty, and with no claim as to its suitability for any purpose.</p>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
@@ -5,8 +5,8 @@
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
</head>
|
||||
<body bgcolor="#ffffff" text="#000000">
|
||||
<h1><A href="../../index.htm"><img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle" width="277" height="86"
|
||||
border="0"></A>shared_array class template</h1>
|
||||
<h1><img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle" width="277" height="86">shared_array
|
||||
class template</h1>
|
||||
<p>The <b>shared_array</b> class template stores a pointer to a dynamically
|
||||
allocated array. (Dynamically allocated array are allocated with the C++ <b>new[]</b>
|
||||
expression.) The object pointed to is guaranteed to be deleted when the last <b>shared_array</b>
|
||||
@@ -47,14 +47,12 @@
|
||||
void <a href="#reset">reset</a>(T * p = 0);
|
||||
template<class D> void <a href="#reset">reset</a>(T * p, D d);
|
||||
|
||||
T & <a href="#indexing">operator[]</a>(std::ptrdiff_t i) const; // never throws
|
||||
T & <a href="#indexing">operator[]</a>(std::ptrdiff_t i) const() const; // never throws
|
||||
T * <a href="#get">get</a>() const; // never throws
|
||||
|
||||
bool <a href="#unique">unique</a>() const; // never throws
|
||||
long <a href="#use_count">use_count</a>() const; // never throws
|
||||
|
||||
operator <A href="#conversions" ><i>unspecified-bool-type</i></A>() const; // never throws
|
||||
|
||||
void <a href="#swap">swap</a>(shared_array<T> & b); // never throws
|
||||
};
|
||||
|
||||
@@ -141,10 +139,6 @@
|
||||
implementations of <b>shared_array</b> that do not use an explicit reference
|
||||
count, it might be removed from some future version. Thus it should be used for
|
||||
debugging purposes only, and not production code.</p>
|
||||
<h3><a name="conversions">conversions</a></h3>
|
||||
<pre>operator <i>unspecified-bool-type</i> () const; // never throws</pre>
|
||||
<p>Returns an unspecified value that, when used in boolean contexts, is equivalent
|
||||
to <code>get() != 0</code>.</p>
|
||||
<h3><a name="swap">swap</a></h3>
|
||||
<pre>void swap(shared_ptr & b); // never throws</pre>
|
||||
<p>Exchanges the contents of the two smart pointers. <b>T</b> need not be a
|
||||
@@ -177,9 +171,10 @@ template<class T>
|
||||
<p>Revised
|
||||
<!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B %Y" startspan -->
|
||||
09 January 2003<!--webbot bot="Timestamp" endspan i-checksum="32310" --></p>
|
||||
<p><small>Copyright 1999 Greg Colvin and Beman Dawes. Copyright 2002 Darin Adler.
|
||||
Copyright 2002-2005 Peter Dimov. Distributed under the Boost Software License, Version
|
||||
1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or
|
||||
copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
|
||||
<p>Copyright 1999 Greg Colvin and Beman Dawes. Copyright 2002 Darin Adler.
|
||||
Permission to copy, use, modify, sell and distribute this document is granted
|
||||
provided this copyright notice appears in all copies. This document is provided
|
||||
"as is" without express or implied warranty, and with no claim as to its
|
||||
suitability for any purpose.</p>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
1109
shared_ptr.htm
1109
shared_ptr.htm
File diff suppressed because it is too large
Load Diff
183
smart_ptr.htm
183
smart_ptr.htm
@@ -5,8 +5,8 @@
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
</head>
|
||||
<body bgcolor="#ffffff" text="#000000">
|
||||
<h1><A href="../../index.htm"><img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle" width="277" height="86"
|
||||
border="0"></A>Smart Pointers</h1>
|
||||
<h1><img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle" width="277" height="86">Smart
|
||||
Pointers</h1>
|
||||
<p><a href="#Introduction">Introduction</a><br>
|
||||
<a href="#common_requirements">Common Requirements</a><br>
|
||||
<a href="#Exception_Safety">Exception Safety</a><br>
|
||||
@@ -14,15 +14,15 @@
|
||||
<a href="#History">History and Acknowledgements</a><br>
|
||||
<a href="#References">References</a></p>
|
||||
<h2><a name="Introduction">Introduction</a></h2>
|
||||
<p>Smart pointers are objects which store pointers to dynamically allocated (heap)
|
||||
objects. They behave much like built-in C++ pointers except that they
|
||||
automatically delete the object pointed to at the appropriate time. Smart
|
||||
pointers are particularly useful in the face of exceptions as they ensure
|
||||
proper destruction of dynamically allocated objects. They can also be used to
|
||||
<p>Smart pointers are objects which store pointers to dynamically allocated (heap)
|
||||
objects. They behave much like built-in C++ pointers except that they
|
||||
automatically delete the object pointed to at the appropriate time. Smart
|
||||
pointers are particularly useful in the face of exceptions as they ensure
|
||||
proper destruction of dynamically allocated objects. They can also be used to
|
||||
keep track of dynamically allocated objects shared by multiple owners.</p>
|
||||
<p>Conceptually, smart pointers are seen as owning the object pointed to, and thus
|
||||
<p>Conceptually, smart pointers are seen as owning the object pointed to, and thus
|
||||
responsible for deletion of the object when it is no longer needed.</p>
|
||||
<p>The smart pointer library provides six smart pointer class templates:</p>
|
||||
<p>The smart pointer library provides five smart pointer class templates:</p>
|
||||
<div align="left">
|
||||
<table border="1" cellpadding="4" cellspacing="0">
|
||||
<tr>
|
||||
@@ -38,7 +38,7 @@
|
||||
<tr>
|
||||
<td><a href="shared_ptr.htm"><b>shared_ptr</b></a></td>
|
||||
<td><a href="../../boost/shared_ptr.hpp"><boost/shared_ptr.hpp></a></td>
|
||||
<td>Object ownership shared among multiple pointers.</td>
|
||||
<td>Object ownership shared among multiple pointers</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><a href="shared_array.htm"><b>shared_array</b></a></td>
|
||||
@@ -58,150 +58,129 @@
|
||||
</table>
|
||||
</div>
|
||||
<p>These templates are designed to complement the <b>std::auto_ptr</b> template.</p>
|
||||
<p>They are examples of the "resource acquisition is initialization" idiom
|
||||
described in Bjarne Stroustrup's "The C++ Programming Language", 3rd edition,
|
||||
<p>They are examples of the "resource acquisition is initialization" idiom
|
||||
described in Bjarne Stroustrup's "The C++ Programming Language", 3rd edition,
|
||||
Section 14.4, Resource Management.</p>
|
||||
<p>Additionally, the smart pointer library provides efficient factory functions
|
||||
for creating <code>shared_ptr</code> objects:</p>
|
||||
<div align="left">
|
||||
<table border="1" cellpadding="4" cellspacing="0">
|
||||
<tr>
|
||||
<td><a href="make_shared.html"><b>make_shared and allocate_shared</b></a></td>
|
||||
<td><a href="../../boost/make_shared.hpp"><boost/make_shared.hpp></a></td>
|
||||
<td>Efficient creation of <code>shared_ptr</code> objects.</td>
|
||||
</tr>
|
||||
<tr>
|
||||
<td><a href="make_shared_array.html"><b>make_shared and allocate_shared for arrays</b></a></td>
|
||||
<td><a href="../../boost/make_shared.hpp"><boost/make_shared.hpp></a></td>
|
||||
<td>Efficient creation of <code>shared_ptr</code> arrays.</td>
|
||||
</tr>
|
||||
</table>
|
||||
</div>
|
||||
<p>A test program, <a href="test/smart_ptr_test.cpp">smart_ptr_test.cpp</a>, is
|
||||
<p>A test program, <a href="test/smart_ptr_test.cpp">smart_ptr_test.cpp</a>, is
|
||||
provided to verify correct operation.</p>
|
||||
<p>A page on <a href="compatibility.htm">compatibility</a> with older versions of
|
||||
the Boost smart pointer library describes some of the changes since earlier
|
||||
<p>A page on <a href="compatibility.htm">compatibility</a> with older versions of
|
||||
the Boost smart pointer library describes some of the changes since earlier
|
||||
versions of the smart pointer implementation.</p>
|
||||
<p>A page on <a href="smarttests.htm">smart pointer timings</a> will be of interest
|
||||
<p>A page on <a href="smarttests.htm">smart pointer timings</a> will be of interest
|
||||
to those curious about performance issues.</p>
|
||||
<P>A page on <A href="sp_techniques.html">smart pointer programming techniques</A> lists
|
||||
<P>A page on <A href="sp_techniques.html">smart pointer programming techniques</A> lists
|
||||
some advanced applications of <code>shared_ptr</code> and <code>weak_ptr</code>.</P>
|
||||
<h2><a name="common_requirements">Common Requirements</a></h2>
|
||||
<p>These smart pointer class templates have a template parameter, <b>T</b>, which
|
||||
specifies the type of the object pointed to by the smart pointer. The behavior
|
||||
<p>These smart pointer class templates have a template parameter, <b>T</b>, which
|
||||
specifies the type of the object pointed to by the smart pointer. The behavior
|
||||
of the smart pointer templates is undefined if the destructor or <b>operator delete</b>
|
||||
for objects of type <b>T</b> throw exceptions.</p>
|
||||
<p><b>T</b> may be an incomplete type at the point of smart pointer declaration.
|
||||
Unless otherwise specified, it is required that <b>T</b> be a complete type at
|
||||
points of smart pointer instantiation. Implementations are required to diagnose
|
||||
(treat as an error) all violations of this requirement, including deletion of
|
||||
<p><b>T</b> may be an incomplete type at the point of smart pointer declaration.
|
||||
Unless otherwise specified, it is required that <b>T</b> be a complete type at
|
||||
points of smart pointer instantiation. Implementations are required to diagnose
|
||||
(treat as an error) all violations of this requirement, including deletion of
|
||||
an incomplete type. See the description of the <a href="../utility/utility.htm#checked_delete">
|
||||
<b>checked_delete</b></a> function template.</p>
|
||||
<P>Note that <STRONG>shared_ptr</STRONG> does not have this restriction, as most of
|
||||
<P>Note that <STRONG>shared_ptr</STRONG> does not have this restriction, as most of
|
||||
its member functions do not require <STRONG>T</STRONG> to be a complete type.</P>
|
||||
<h3>Rationale</h3>
|
||||
<p>The requirements on <b>T</b> are carefully crafted to maximize safety yet allow
|
||||
handle-body (also called pimpl) and similar idioms. In these idioms a smart
|
||||
pointer may appear in translation units where <b>T</b> is an incomplete type.
|
||||
This separates interface from implementation and hides implementation from
|
||||
translation units which merely use the interface. Examples described in the
|
||||
documentation for specific smart pointers illustrate use of smart pointers in
|
||||
<p>The requirements on <b>T</b> are carefully crafted to maximize safety yet allow
|
||||
handle-body (also called pimpl) and similar idioms. In these idioms a smart
|
||||
pointer may appear in translation units where <b>T</b> is an incomplete type.
|
||||
This separates interface from implementation and hides implementation from
|
||||
translation units which merely use the interface. Examples described in the
|
||||
documentation for specific smart pointers illustrate use of smart pointers in
|
||||
these idioms.</p>
|
||||
<p>Note that <b>scoped_ptr</b> requires that <b>T</b> be a complete type at
|
||||
<p>Note that <b>scoped_ptr</b> requires that <b>T</b> be a complete type at
|
||||
destruction time, but <b>shared_ptr</b> does not.</p>
|
||||
<h2><a name="Exception_Safety">Exception Safety</a></h2>
|
||||
<p>Several functions in these smart pointer classes are specified as having "no
|
||||
effect" or "no effect except such-and-such" if an exception is thrown. This
|
||||
means that when an exception is thrown by an object of one of these classes,
|
||||
the entire program state remains the same as it was prior to the function call
|
||||
which resulted in the exception being thrown. This amounts to a guarantee that
|
||||
there are no detectable side effects. Other functions never throw exceptions.
|
||||
The only exception ever thrown by functions which do throw (assuming <b>T</b> meets
|
||||
the <a href="#common_requirements">common requirements</a>) is <b>std::bad_alloc</b>,
|
||||
and that is thrown only by functions which are explicitly documented as
|
||||
<p>Several functions in these smart pointer classes are specified as having "no
|
||||
effect" or "no effect except such-and-such" if an exception is thrown. This
|
||||
means that when an exception is thrown by an object of one of these classes,
|
||||
the entire program state remains the same as it was prior to the function call
|
||||
which resulted in the exception being thrown. This amounts to a guarantee that
|
||||
there are no detectable side effects. Other functions never throw exceptions.
|
||||
The only exception ever thrown by functions which do throw (assuming <b>T</b> meets
|
||||
the <a href="#common_requirements">common requirements</a>) is <b>std::bad_alloc</b>,
|
||||
and that is thrown only by functions which are explicitly documented as
|
||||
possibly throwing <b>std::bad_alloc</b>.</p>
|
||||
<h2><a name="Exception-specifications">Exception-specifications</a></h2>
|
||||
<p>Exception-specifications are not used; see <a href="http://www.boost.org/more/lib_guide.htm#Exception-specification">
|
||||
<p>Exception-specifications are not used; see <a href="../../more/lib_guide.htm#Exception-specification">
|
||||
exception-specification rationale</a>.</p>
|
||||
<p>All the smart pointer templates contain member functions which can never throw
|
||||
exceptions, because they neither throw exceptions themselves nor call other
|
||||
<p>All the smart pointer templates contain member functions which can never throw
|
||||
exceptions, because they neither throw exceptions themselves nor call other
|
||||
functions which may throw exceptions. These members are indicated by a comment: <code>
|
||||
// never throws</code>.
|
||||
</p>
|
||||
<p>Functions which destroy objects of the pointed to type are prohibited from
|
||||
<p>Functions which destroy objects of the pointed to type are prohibited from
|
||||
throwing exceptions by the <a href="#common_requirements">common requirements</a>.</p>
|
||||
<h2><a name="History">History</a> and Acknowledgements</h2>
|
||||
<p>November 2012. Glen Fernandes provided implementations of <b>make_shared</b>
|
||||
and <b>allocate_shared</b> for arrays. They achieve a single allocation for an
|
||||
array that can be initialized with constructor arguments or initializer lists
|
||||
as well as overloads for default initialization and no value initialization.
|
||||
See the <a href="make_shared_array.html">make_shared and allocate_shared for
|
||||
arrays</a> page for more information.</p>
|
||||
<p>January 2002. Peter Dimov reworked all four classes, adding features, fixing
|
||||
bugs, and splitting them into four separate headers, and added <b>weak_ptr</b>.
|
||||
See the <a href="compatibility.htm">compatibility</a> page for a summary of the
|
||||
<p>January 2002. Peter Dimov reworked all four classes, adding features, fixing
|
||||
bugs, and splitting them into four separate headers, and added <b>weak_ptr</b>.
|
||||
See the <a href="compatibility.htm">compatibility</a> page for a summary of the
|
||||
changes.</p>
|
||||
<p>May 2001. Vladimir Prus suggested requiring a complete type on destruction.
|
||||
Refinement evolved in discussions including Dave Abrahams, Greg Colvin, Beman
|
||||
Dawes, Rainer Deyke, Peter Dimov, John Maddock, Vladimir Prus, Shankar Sai, and
|
||||
<p>May 2001. Vladimir Prus suggested requiring a complete type on destruction.
|
||||
Refinement evolved in discussions including Dave Abrahams, Greg Colvin, Beman
|
||||
Dawes, Rainer Deyke, Peter Dimov, John Maddock, Vladimir Prus, Shankar Sai, and
|
||||
others.</p>
|
||||
<p>November 1999. Darin Adler provided <b>operator ==</b>, <b>operator !=</b>, and <b>std::swap</b>
|
||||
and <b>std::less</b> specializations for shared types.</p>
|
||||
<p>September 1999. Luis Coelho provided <b>shared_ptr::swap</b> and <b>shared_array::swap</b></p>
|
||||
<p>May 1999. In April and May, 1999, Valentin Bonnard and David Abrahams made a
|
||||
<p>May 1999. In April and May, 1999, Valentin Bonnard and David Abrahams made a
|
||||
number of suggestions resulting in numerous improvements.</p>
|
||||
<p>October 1998. Beman Dawes proposed reviving the original semantics under the
|
||||
names <b>safe_ptr</b> and <b>counted_ptr</b>, meeting of Per Andersson, Matt
|
||||
Austern, Greg Colvin, Sean Corfield, Pete Becker, Nico Josuttis, Dietmar Kühl,
|
||||
Nathan Myers, Chichiang Wan and Judy Ward. During the discussion, the four new
|
||||
class names were finalized, it was decided that there was no need to exactly
|
||||
follow the <b>std::auto_ptr</b> interface, and various function signatures and
|
||||
<p>October 1998. Beman Dawes proposed reviving the original semantics under the
|
||||
names <b>safe_ptr</b> and <b>counted_ptr</b>, meeting of Per Andersson, Matt
|
||||
Austern, Greg Colvin, Sean Corfield, Pete Becker, Nico Josuttis, Dietmar K<EFBFBD>hl,
|
||||
Nathan Myers, Chichiang Wan and Judy Ward. During the discussion, the four new
|
||||
class names were finalized, it was decided that there was no need to exactly
|
||||
follow the <b>std::auto_ptr</b> interface, and various function signatures and
|
||||
semantics were finalized.</p>
|
||||
<p>Over the next three months, several implementations were considered for <b>shared_ptr</b>,
|
||||
and discussed on the <a href="http://www.boost.org">boost.org</a> mailing list.
|
||||
The implementation questions revolved around the reference count which must be
|
||||
kept, either attached to the pointed to object, or detached elsewhere. Each of
|
||||
<p>Over the next three months, several implementations were considered for <b>shared_ptr</b>,
|
||||
and discussed on the <a href="http://www.boost.org">boost.org</a> mailing list.
|
||||
The implementation questions revolved around the reference count which must be
|
||||
kept, either attached to the pointed to object, or detached elsewhere. Each of
|
||||
those variants have themselves two major variants:
|
||||
<ul>
|
||||
<li>
|
||||
Direct detached: the shared_ptr contains a pointer to the object, and a pointer
|
||||
Direct detached: the shared_ptr contains a pointer to the object, and a pointer
|
||||
to the count.
|
||||
<li>
|
||||
Indirect detached: the shared_ptr contains a pointer to a helper object, which
|
||||
Indirect detached: the shared_ptr contains a pointer to a helper object, which
|
||||
in turn contains a pointer to the object and the count.
|
||||
<li>
|
||||
Embedded attached: the count is a member of the object pointed to.
|
||||
<li>
|
||||
Placement attached: the count is attached via operator new manipulations.</li>
|
||||
</ul>
|
||||
<p>Each implementation technique has advantages and disadvantages. We went so far
|
||||
as to run various timings of the direct and indirect approaches, and found that
|
||||
at least on Intel Pentium chips there was very little measurable difference.
|
||||
Kevlin Henney provided a paper he wrote on "Counted Body Techniques." Dietmar
|
||||
Kühl suggested an elegant partial template specialization technique to allow
|
||||
users to choose which implementation they preferred, and that was also
|
||||
<p>Each implementation technique has advantages and disadvantages. We went so far
|
||||
as to run various timings of the direct and indirect approaches, and found that
|
||||
at least on Intel Pentium chips there was very little measurable difference.
|
||||
Kevlin Henney provided a paper he wrote on "Counted Body Techniques." Dietmar
|
||||
K<EFBFBD>hl suggested an elegant partial template specialization technique to allow
|
||||
users to choose which implementation they preferred, and that was also
|
||||
experimented with.</p>
|
||||
<p>But Greg Colvin and Jerry Schwarz argued that "parameterization will discourage
|
||||
<p>But Greg Colvin and Jerry Schwarz argued that "parameterization will discourage
|
||||
users", and in the end we choose to supply only the direct implementation.</p>
|
||||
<p>Summer, 1994. Greg Colvin proposed to the C++ Standards Committee classes named <b>auto_ptr</b>
|
||||
and <b>counted_ptr</b> which were very similar to what we now call <b>scoped_ptr</b>
|
||||
and <b>shared_ptr</b>. <a href="#Col-94">[Col-94]</a> In one of the very few
|
||||
cases where the Library Working Group's recommendations were not followed by
|
||||
the full committee, <b>counted_ptr</b> was rejected and surprising
|
||||
and <b>shared_ptr</b>. <a href="#Col-94">[Col-94]</a> In one of the very few
|
||||
cases where the Library Working Group's recommendations were not followed by
|
||||
the full committee, <b>counted_ptr</b> was rejected and surprising
|
||||
transfer-of-ownership semantics were added to <b>auto_ptr</b>.</p>
|
||||
<h2><a name="References">References</a></h2>
|
||||
<p>[<a name="Col-94">Col-94</a>] Gregory Colvin, <a href="http://std.dkuug.dk/jtc1/sc22/wg21/docs/papers/1994/N0555.pdf">
|
||||
Exception Safe Smart Pointers</a>, C++ committee document 94-168/N0555,
|
||||
Exception Safe Smart Pointers</a>, C++ committee document 94-168/N0555,
|
||||
July, 1994.</p>
|
||||
<p>[<a name="E&D-94">E&D-94</a>] John R. Ellis & David L. Detlefs, <a href="http://www.usenix.org/publications/library/proceedings/c++94/full_papers/ellis.a">
|
||||
Safe, Efficient Garbage Collection for C++</a>, Usenix Proceedings,
|
||||
February, 1994. This paper includes an extensive discussion of weak pointers
|
||||
Safe, Efficient Garbage Collection for C++</a>, Usenix Proceedings,
|
||||
February, 1994. This paper includes an extensive discussion of weak pointers
|
||||
and an extensive bibliography.</p>
|
||||
<hr>
|
||||
<p>$Date$</p>
|
||||
<p><small>Copyright 1999 Greg Colvin and Beman Dawes. Copyright 2002 Darin Adler.
|
||||
Distributed under the Boost Software License, Version 1.0. See accompanying
|
||||
file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or copy at
|
||||
<A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
|
||||
<p>Copyright 1999 Greg Colvin and Beman Dawes. Copyright 2002 Darin Adler.
|
||||
Permission to copy, use, modify, sell and distribute this document is granted
|
||||
provided this copyright notice appears in all copies. This document is provided
|
||||
"as is" without express or implied warranty, and with no claim as to its
|
||||
suitability for any purpose.</p>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
@@ -21,10 +21,10 @@
|
||||
mailing list and the tests which this page describes were performed to provide
|
||||
a guide for current and future investigations into smart pointer implementation
|
||||
strategies.</p>
|
||||
<p>Thanks are due to <a href="http://www.boost.org/people/dave_abrahams.htm">Dave Abrahams</a>,
|
||||
<p>Thanks are due to <a href="../../people/dave_abrahams.htm">Dave Abrahams</a>,
|
||||
Gavin Collings,
|
||||
<a href="http://www.boost.org/people/greg_colvin.htm">Greg Colvin</a> and
|
||||
<a href="http://www.boost.org/people/beman_dawes.html">Beman Dawes</a>
|
||||
<a href="../../people/greg_colvin.htm">Greg Colvin</a> and
|
||||
<a href="../../people/beman_dawes.html">Beman Dawes</a>
|
||||
for test code and trial implementations, the final version of which can be found
|
||||
in .zip format <a href="smarttest.zip">here</a>.</p>
|
||||
<h2>Description</h2>
|
||||
|
||||
@@ -5,8 +5,8 @@
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
</head>
|
||||
<body text="#000000" bgColor="#ffffff">
|
||||
<h1><A href="../../index.htm"><IMG height="86" alt="boost.png (6897 bytes)" src="../../boost.png" width="277" align="middle"
|
||||
border="0"></A>Smart Pointer Programming Techniques</h1>
|
||||
<h1><IMG height="86" alt="boost.png (6897 bytes)" src="../../boost.png" width="277" align="middle">Smart
|
||||
Pointer Programming Techniques</h1>
|
||||
<p><A href="#incomplete">Using incomplete classes for implementation hiding</A><br>
|
||||
<A href="#pimpl">The "Pimpl" idiom</A><br>
|
||||
<A href="#abstract">Using abstract classes for implementation hiding</A><br>
|
||||
@@ -519,9 +519,6 @@ public:
|
||||
}
|
||||
}
|
||||
</pre>
|
||||
<p>Note that you no longer need to manually initialize the <code>weak_ptr</code> member
|
||||
in <code><A href="enable_shared_from_this.html">enable_shared_from_this</A></code>.
|
||||
Constructing a <code>shared_ptr</code> to <code>impl</code> takes care of that.</p>
|
||||
<h2><A name="handle">Using <code>shared_ptr</code> as a smart counted handle</A></h2>
|
||||
<p>Some library interfaces use opaque handles, a variation of the <A href="#incomplete">
|
||||
incomplete class technique</A> described above. An example:</p>
|
||||
@@ -624,7 +621,7 @@ public:
|
||||
<h2><A name="wrapper">Using <code>shared_ptr</code> to wrap member function calls</A></h2>
|
||||
<p><code>shared_ptr</code> implements the ownership semantics required from the <code>Wrap</code>/<code>CallProxy</code>
|
||||
scheme described in Bjarne Stroustrup's article "Wrapping C++ Member Function
|
||||
Calls" (available online at <A href="http://www.stroustrup.com/wrapper.pdf">http://www.stroustrup.com/wrapper.pdf</A>).
|
||||
Calls" (available online at <A href="http://www.research.att.com/~bs/wrapper.pdf">http://www.research.att.com/~bs/wrapper.pdf</A>).
|
||||
An implementation is given below:</p>
|
||||
<pre>template<class T> class pointer
|
||||
{
|
||||
@@ -758,8 +755,9 @@ public:
|
||||
all weak pointers will automatically expire.</p>
|
||||
<hr>
|
||||
<p>$Date$</p>
|
||||
<p><small>Copyright <20> 2003 Peter Dimov. Distributed under the Boost Software License, Version
|
||||
1.0. See accompanying file <A href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</A> or
|
||||
copy at <A href="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>.</small></p>
|
||||
<p><small>Copyright <20> 2003 Peter Dimov. Permission to copy, use, modify, sell and
|
||||
distribute this document is granted provided this copyright notice appears in
|
||||
all copies. This document is provided "as is" without express or implied
|
||||
warranty, and with no claim as to its suitability for any purpose.</small></p>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user