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@@ -1,105 +1,88 @@
|
||||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||||
|
||||
<html>
|
||||
|
||||
<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="../../c++boost.gif" alt="c++boost.gif (8819 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>
|
||||
|
||||
<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>
|
||||
</html>
|
||||
|
@@ -7,10 +7,9 @@
|
||||
<body bgcolor="white" style="MARGIN-LEFT: 5%; MARGIN-RIGHT: 5%">
|
||||
<table border="0" width="100%">
|
||||
<tr>
|
||||
<td width="277">
|
||||
<img src="../../c++boost.gif" alt="c++boost.gif (8819 bytes)" width="277" height="86">
|
||||
<td width="277"><A href="../../index.htm"> <img src="../../boost.png" alt="boost.png (6897 bytes)" width="277" height="86" border="0"></A>
|
||||
</td>
|
||||
<td align="middle">
|
||||
<td align="center">
|
||||
<h1>enable_shared_from_this.hpp</h1>
|
||||
</td>
|
||||
</tr>
|
||||
@@ -85,9 +84,8 @@ public:
|
||||
</blockquote>
|
||||
<p>
|
||||
<br>
|
||||
<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>
|
||||
<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>
|
||||
</body>
|
||||
</html>
|
||||
|
@@ -1,12 +1,11 @@
|
||||
// Boost scoped_ptr_example implementation file -----------------------------//
|
||||
|
||||
// (C) Copyright Beman Dawes 2001. Permission to copy,
|
||||
// use, modify, sell and distribute this software is granted provided this
|
||||
// copyright notice appears in all copies. This software is provided "as is"
|
||||
// without express or implied warranty, and with no claim as to its
|
||||
// suitability for any purpose.
|
||||
// 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)
|
||||
|
||||
// See http://www.boost.org for most recent version including documentation.
|
||||
|
||||
// See http://www.boost.org/libs/smart_ptr for documentation.
|
||||
|
||||
#include "scoped_ptr_example.hpp"
|
||||
#include <iostream>
|
||||
|
@@ -1,12 +1,11 @@
|
||||
// Boost scoped_ptr_example header file ------------------------------------//
|
||||
|
||||
// (C) Copyright Beman Dawes 2001. Permission to copy,
|
||||
// use, modify, sell and distribute this software is granted provided this
|
||||
// copyright notice appears in all copies. This software is provided "as is"
|
||||
// without express or implied warranty, and with no claim as to its
|
||||
// suitability for any purpose.
|
||||
// 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)
|
||||
|
||||
// See http://www.boost.org for most recent version including documentation.
|
||||
|
||||
// See http://www.boost.org/libs/smart_ptr for documentation.
|
||||
|
||||
#include <boost/utility.hpp>
|
||||
#include <boost/scoped_ptr.hpp>
|
||||
|
@@ -1,12 +1,11 @@
|
||||
// Boost scoped_ptr_example_test main program -------------------------------//
|
||||
|
||||
// (C) Copyright Beman Dawes 2001. Permission to copy,
|
||||
// use, modify, sell and distribute this software is granted provided this
|
||||
// copyright notice appears in all copies. This software is provided "as is"
|
||||
// without express or implied warranty, and with no claim as to its
|
||||
// suitability for any purpose.
|
||||
// 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)
|
||||
|
||||
// See http://www.boost.org for most recent version including documentation.
|
||||
|
||||
// See http://www.boost.org/libs/smart_ptr for documentation.
|
||||
|
||||
#include "scoped_ptr_example.hpp"
|
||||
|
||||
|
@@ -1,12 +1,11 @@
|
||||
// Boost shared_ptr_example.cpp --------------------------------------------//
|
||||
|
||||
// (C) Copyright Beman Dawes 2001. Permission to copy,
|
||||
// use, modify, sell and distribute this software is granted provided this
|
||||
// copyright notice appears in all copies. This software is provided "as is"
|
||||
// without express or implied warranty, and with no claim as to its
|
||||
// suitability for any purpose.
|
||||
// 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)
|
||||
|
||||
// See http://www.boost.org for most recent version including documentation.
|
||||
|
||||
// See http://www.boost.org/libs/smart_ptr for documentation.
|
||||
|
||||
// Revision History
|
||||
// 21 May 01 Initial complete version (Beman Dawes)
|
||||
|
@@ -1,12 +1,11 @@
|
||||
// Boost shared_ptr_example2 implementation file -----------------------------//
|
||||
|
||||
// (C) Copyright Beman Dawes 2001. Permission to copy,
|
||||
// use, modify, sell and distribute this software is granted provided this
|
||||
// copyright notice appears in all copies. This software is provided "as is"
|
||||
// without express or implied warranty, and with no claim as to its
|
||||
// suitability for any purpose.
|
||||
// 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)
|
||||
|
||||
// See http://www.boost.org for most recent version including documentation.
|
||||
|
||||
// See http://www.boost.org/libs/smart_ptr for documentation.
|
||||
|
||||
#include "shared_ptr_example2.hpp"
|
||||
#include <iostream>
|
||||
|
@@ -1,12 +1,11 @@
|
||||
// Boost shared_ptr_example2 header file -----------------------------------//
|
||||
|
||||
// (C) Copyright Beman Dawes 2001. Permission to copy,
|
||||
// use, modify, sell and distribute this software is granted provided this
|
||||
// copyright notice appears in all copies. This software is provided "as is"
|
||||
// without express or implied warranty, and with no claim as to its
|
||||
// suitability for any purpose.
|
||||
// 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)
|
||||
|
||||
// See http://www.boost.org for most recent version including documentation.
|
||||
|
||||
// See http://www.boost.org/libs/smart_ptr for documentation.
|
||||
|
||||
#include <boost/shared_ptr.hpp>
|
||||
|
||||
|
@@ -1,12 +1,11 @@
|
||||
// Boost shared_ptr_example2_test main program ------------------------------//
|
||||
|
||||
// (C) Copyright Beman Dawes 2001. Permission to copy,
|
||||
// use, modify, sell and distribute this software is granted provided this
|
||||
// copyright notice appears in all copies. This software is provided "as is"
|
||||
// without express or implied warranty, and with no claim as to its
|
||||
// suitability for any purpose.
|
||||
// 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)
|
||||
|
||||
// See http://www.boost.org for most recent version including documentation.
|
||||
|
||||
// See http://www.boost.org/libs/smart_ptr for documentation.
|
||||
|
||||
#include "shared_ptr_example2.hpp"
|
||||
|
||||
|
@@ -1,8 +1,10 @@
|
||||
#ifndef BOOST_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_ATOMIC_COUNT_HPP_INCLUDED
|
||||
|
||||
#if _MSC_VER >= 1020
|
||||
#pragma once
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
@@ -10,10 +12,9 @@
|
||||
//
|
||||
// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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;
|
||||
//
|
||||
@@ -72,9 +73,6 @@
|
||||
// are called driven by smart_ptr interface...
|
||||
//
|
||||
|
||||
// Note: atomic_count_linux.hpp has been disabled by default; see the
|
||||
// comments inside for more info.
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#ifndef BOOST_HAS_THREADS
|
||||
@@ -91,17 +89,26 @@ typedef long atomic_count;
|
||||
|
||||
}
|
||||
|
||||
#elif defined(BOOST_USE_ASM_ATOMIC_H)
|
||||
# include <boost/detail/atomic_count_linux.hpp>
|
||||
#elif defined(BOOST_AC_USE_PTHREADS)
|
||||
# include <boost/detail/atomic_count_pthreads.hpp>
|
||||
|
||||
#elif defined( __GNUC__ ) && ( defined( __i386__ ) || defined( __x86_64__ ) )
|
||||
# include <boost/detail/atomic_count_gcc_x86.hpp>
|
||||
|
||||
#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
|
||||
# include <boost/detail/atomic_count_win32.hpp>
|
||||
#elif defined(__GLIBCPP__)
|
||||
|
||||
#elif defined( __GNUC__ ) && ( __GNUC__ * 100 + __GNUC_MINOR__ >= 401 ) && !defined( __arm__ ) && !defined( __hppa ) && ( !defined( __INTEL_COMPILER ) || defined( __ia64__ ) )
|
||||
# include <boost/detail/atomic_count_sync.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
|
||||
|
@@ -10,11 +10,11 @@
|
||||
//
|
||||
// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
|
||||
// Copyright (c) 2002 Lars Gullik Bj<42>nnes <larsbj@lyx.org>
|
||||
// Copyright 2003-2005 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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 <bits/atomicity.h>
|
||||
@@ -25,6 +25,13 @@ namespace boost
|
||||
namespace detail
|
||||
{
|
||||
|
||||
#if defined(__GLIBCXX__) // g++ 3.4+
|
||||
|
||||
using __gnu_cxx::__atomic_add;
|
||||
using __gnu_cxx::__exchange_and_add;
|
||||
|
||||
#endif
|
||||
|
||||
class atomic_count
|
||||
{
|
||||
public:
|
||||
@@ -38,7 +45,7 @@ public:
|
||||
|
||||
long operator--()
|
||||
{
|
||||
return !__exchange_and_add(&value_, -1);
|
||||
return __exchange_and_add(&value_, -1) - 1;
|
||||
}
|
||||
|
||||
operator long() const
|
||||
@@ -51,7 +58,7 @@ private:
|
||||
atomic_count(atomic_count const &);
|
||||
atomic_count & operator=(atomic_count const &);
|
||||
|
||||
_Atomic_word value_;
|
||||
mutable _Atomic_word value_;
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
84
include/boost/detail/atomic_count_gcc_x86.hpp
Normal file
84
include/boost/detail/atomic_count_gcc_x86.hpp
Normal file
@@ -0,0 +1,84 @@
|
||||
#ifndef BOOST_DETAIL_ATOMIC_COUNT_GCC_X86_HPP_INCLUDED
|
||||
#define BOOST_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 ) ) {}
|
||||
|
||||
void operator++()
|
||||
{
|
||||
__asm__
|
||||
(
|
||||
"lock\n\t"
|
||||
"incl %0":
|
||||
"+m"( value_ ): // output (%0)
|
||||
: // inputs
|
||||
"cc" // clobbers
|
||||
);
|
||||
}
|
||||
|
||||
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_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED
|
@@ -1,70 +0,0 @@
|
||||
#ifndef BOOST_DETAIL_ATOMIC_COUNT_LINUX_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_ATOMIC_COUNT_LINUX_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// boost/detail/atomic_count_linux.hpp
|
||||
//
|
||||
// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
//
|
||||
|
||||
//
|
||||
// This implementation uses <asm/atomic.h>. This is a kernel header;
|
||||
// using kernel headers in a user program may cause a number of problems,
|
||||
// and not all flavors of Linux provide the atomic instructions.
|
||||
//
|
||||
// This file is only provided because the performance of this implementation
|
||||
// is significantly higher than the pthreads version. Use at your own risk
|
||||
// (by defining BOOST_USE_ASM_ATOMIC_H.)
|
||||
//
|
||||
|
||||
#include <asm/atomic.h>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class atomic_count
|
||||
{
|
||||
public:
|
||||
|
||||
explicit atomic_count(long v)
|
||||
{
|
||||
atomic_t init = ATOMIC_INIT(v);
|
||||
value_ = init;
|
||||
}
|
||||
|
||||
void operator++()
|
||||
{
|
||||
atomic_inc(&value_);
|
||||
}
|
||||
|
||||
long operator--()
|
||||
{
|
||||
return !atomic_dec_and_test(&value_);
|
||||
}
|
||||
|
||||
operator long() const
|
||||
{
|
||||
return atomic_read(&value_);
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
atomic_count(atomic_count const &);
|
||||
atomic_count & operator=(atomic_count const &);
|
||||
|
||||
atomic_t value_;
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_ATOMIC_COUNT_LINUX_HPP_INCLUDED
|
@@ -6,10 +6,9 @@
|
||||
//
|
||||
// Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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>
|
||||
|
59
include/boost/detail/atomic_count_solaris.hpp
Normal file
59
include/boost/detail/atomic_count_solaris.hpp
Normal file
@@ -0,0 +1,59 @@
|
||||
#ifndef BOOST_DETAIL_ATOMIC_COUNT_SOLARIS_HPP_INCLUDED
|
||||
#define BOOST_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_DETAIL_ATOMIC_COUNT_SOLARIS_HPP_INCLUDED
|
61
include/boost/detail/atomic_count_sync.hpp
Normal file
61
include/boost/detail/atomic_count_sync.hpp
Normal file
@@ -0,0 +1,61 @@
|
||||
#ifndef BOOST_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED
|
||||
#define BOOST_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 ) {}
|
||||
|
||||
void operator++()
|
||||
{
|
||||
__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_DETAIL_ATOMIC_COUNT_SYNC_HPP_INCLUDED
|
@@ -1,24 +1,23 @@
|
||||
#ifndef BOOST_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_ATOMIC_COUNT_WIN32_HPP_INCLUDED
|
||||
|
||||
#if _MSC_VER >= 1020
|
||||
#pragma once
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// boost/detail/atomic_count_win32.hpp
|
||||
//
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov
|
||||
// Copyright (c) 2001-2005 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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 BOOST_USE_WINDOWS_H
|
||||
# include <windows.h>
|
||||
#endif
|
||||
#include <boost/detail/interlocked.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
@@ -26,67 +25,35 @@ namespace boost
|
||||
namespace detail
|
||||
{
|
||||
|
||||
#ifndef BOOST_USE_WINDOWS_H
|
||||
|
||||
#ifdef _WIN64
|
||||
|
||||
// Intel 6.0 on Win64 version, posted by Tim Fenders to [boost-users]
|
||||
|
||||
extern "C" long_type __cdecl _InterlockedIncrement(long volatile *);
|
||||
extern "C" long_type __cdecl _InterlockedDecrement(long volatile *);
|
||||
|
||||
#pragma intrinsic(_InterlockedIncrement)
|
||||
#pragma intrinsic(_InterlockedDecrement)
|
||||
|
||||
inline long InterlockedIncrement(long volatile * lp)
|
||||
{
|
||||
return _InterlockedIncrement(lp);
|
||||
}
|
||||
|
||||
inline long InterlockedDecrement(long volatile* lp)
|
||||
{
|
||||
return _InterlockedDecrement(lp);
|
||||
}
|
||||
|
||||
#else // _WIN64
|
||||
|
||||
extern "C" __declspec(dllimport) long __stdcall InterlockedIncrement(long volatile *);
|
||||
extern "C" __declspec(dllimport) long __stdcall InterlockedDecrement(long volatile *);
|
||||
|
||||
#endif // _WIN64
|
||||
|
||||
#endif // #ifndef BOOST_USE_WINDOWS_H
|
||||
|
||||
class atomic_count
|
||||
{
|
||||
public:
|
||||
|
||||
explicit atomic_count(long v): value_(v)
|
||||
explicit atomic_count( long v ): value_( v )
|
||||
{
|
||||
}
|
||||
|
||||
long operator++()
|
||||
{
|
||||
// Some older <windows.h> versions do not accept volatile
|
||||
return InterlockedIncrement(const_cast<long*>(&value_));
|
||||
return BOOST_INTERLOCKED_INCREMENT( &value_ );
|
||||
}
|
||||
|
||||
long operator--()
|
||||
{
|
||||
return InterlockedDecrement(const_cast<long*>(&value_));
|
||||
return BOOST_INTERLOCKED_DECREMENT( &value_ );
|
||||
}
|
||||
|
||||
operator long() const
|
||||
{
|
||||
return value_;
|
||||
return static_cast<long const volatile &>( value_ );
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
atomic_count(atomic_count const &);
|
||||
atomic_count & operator=(atomic_count const &);
|
||||
atomic_count( atomic_count const & );
|
||||
atomic_count & operator=( atomic_count const & );
|
||||
|
||||
volatile long value_;
|
||||
long value_;
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
59
include/boost/detail/bad_weak_ptr.hpp
Normal file
59
include/boost/detail/bad_weak_ptr.hpp
Normal file
@@ -0,0 +1,59 @@
|
||||
#ifndef BOOST_BAD_WEAK_PTR_HPP_INCLUDED
|
||||
#define BOOST_BAD_WEAK_PTR_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/bad_weak_ptr.hpp
|
||||
//
|
||||
// Copyright (c) 2001, 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)
|
||||
//
|
||||
|
||||
#include <exception>
|
||||
|
||||
#ifdef __BORLANDC__
|
||||
# pragma warn -8026 // Functions with excep. spec. are not expanded inline
|
||||
#endif
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
// The standard library that comes with Borland C++ 5.5.1, 5.6.4
|
||||
// defines std::exception and its members as having C calling
|
||||
// convention (-pc). When the definition of bad_weak_ptr
|
||||
// is compiled with -ps, the compiler issues an error.
|
||||
// Hence, the temporary #pragma option -pc below.
|
||||
|
||||
#if defined(__BORLANDC__) && __BORLANDC__ <= 0x564
|
||||
# pragma option push -pc
|
||||
#endif
|
||||
|
||||
class bad_weak_ptr: public std::exception
|
||||
{
|
||||
public:
|
||||
|
||||
virtual char const * what() const throw()
|
||||
{
|
||||
return "tr1::bad_weak_ptr";
|
||||
}
|
||||
};
|
||||
|
||||
#if defined(__BORLANDC__) && __BORLANDC__ <= 0x564
|
||||
# pragma option pop
|
||||
#endif
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#ifdef __BORLANDC__
|
||||
# pragma warn .8026 // Functions with excep. spec. are not expanded inline
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_BAD_WEAK_PTR_HPP_INCLUDED
|
@@ -1,86 +1,39 @@
|
||||
#ifndef BOOST_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_LIGHTWEIGHT_MUTEX_HPP_INCLUDED
|
||||
|
||||
#if _MSC_VER >= 1020
|
||||
#pragma once
|
||||
// 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 Peter Dimov and Multi Media Ltd.
|
||||
// Copyright (c) 2002, 2003 Peter Dimov and Multi Media Ltd.
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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 meets a subset of the Mutex concept
|
||||
// requirements: http://www.boost.org/libs/thread/doc/mutex_concept.html#Mutex
|
||||
// boost::detail::lightweight_mutex is a header-only implementation of
|
||||
// a subset of the Mutex concept requirements:
|
||||
//
|
||||
// * Used by the smart pointer library
|
||||
// * Performance oriented
|
||||
// * Header-only implementation
|
||||
// * Small memory footprint
|
||||
// * Not a general purpose mutex, use boost::mutex, CRITICAL_SECTION or
|
||||
// pthread_mutex instead.
|
||||
// * Never spin in a tight lock/do-something/unlock loop, since
|
||||
// lightweight_mutex does not guarantee fairness.
|
||||
// * Never keep a lightweight_mutex locked for long periods.
|
||||
// http://www.boost.org/doc/html/threads/concepts.html#threads.concepts.Mutex
|
||||
//
|
||||
// The current implementation can use a pthread_mutex, a CRITICAL_SECTION,
|
||||
// or a platform-specific spinlock.
|
||||
// It maps to a CRITICAL_SECTION on Windows or a pthread_mutex on POSIX.
|
||||
//
|
||||
// You can force a particular implementation by defining BOOST_LWM_USE_PTHREADS,
|
||||
// BOOST_LWM_USE_CRITICAL_SECTION, or BOOST_LWM_USE_SPINLOCK.
|
||||
//
|
||||
// If neither macro has been defined, the default is to use a spinlock on Win32,
|
||||
// and a pthread_mutex otherwise.
|
||||
//
|
||||
// Note that a spinlock is not a general synchronization primitive. In particular,
|
||||
// it is not guaranteed to be a memory barrier, and it is possible to "livelock"
|
||||
// if a lower-priority thread has acquired the spinlock but a higher-priority
|
||||
// thread is spinning trying to acquire the same lock.
|
||||
//
|
||||
// For these reasons, spinlocks have been disabled by default except on Windows,
|
||||
// where a spinlock can be several orders of magnitude faster than a CRITICAL_SECTION.
|
||||
|
||||
|
||||
// Note: lwm_linux.hpp has been disabled by default; see the comments
|
||||
// inside for more info.
|
||||
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
// Note to implementors: if you write a platform-specific spinlock
|
||||
// for a platform that supports pthreads, be sure to test its performance
|
||||
// against the pthreads-based version using shared_ptr_timing_test.cpp and
|
||||
// shared_ptr_mt_test.cpp. Custom versions are usually not worth the trouble
|
||||
// _unless_ the performance gains are substantial.
|
||||
//
|
||||
// Be sure to compare against a "real" pthreads library;
|
||||
// shared_ptr_timing_test.cpp will compile succesfully with a stub do-nothing
|
||||
// pthreads library, since it doesn't create any threads.
|
||||
|
||||
#ifndef BOOST_HAS_THREADS
|
||||
# include <boost/detail/lwm_nop.hpp>
|
||||
#elif defined(BOOST_LWM_USE_SPINLOCK) && defined(BOOST_USE_ASM_ATOMIC_H)
|
||||
# include <boost/detail/lwm_linux.hpp>
|
||||
#elif defined(BOOST_LWM_USE_CRITICAL_SECTION)
|
||||
# include <boost/detail/lwm_win32_cs.hpp>
|
||||
#elif defined(BOOST_LWM_USE_PTHREADS)
|
||||
#if !defined(BOOST_HAS_THREADS)
|
||||
# include <boost/detail/lwm_nop.hpp>
|
||||
#elif defined(BOOST_HAS_PTHREADS)
|
||||
# include <boost/detail/lwm_pthreads.hpp>
|
||||
#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
|
||||
# include <boost/detail/lwm_win32.hpp>
|
||||
#elif defined(BOOST_LWM_USE_SPINLOCK) && defined(__sgi)
|
||||
# include <boost/detail/lwm_irix.hpp>
|
||||
#elif defined(BOOST_LWM_USE_SPINLOCK) && defined(__GLIBCPP__)
|
||||
# include <boost/detail/lwm_gcc.hpp>
|
||||
#elif defined(BOOST_HAS_PTHREADS)
|
||||
# define BOOST_LWM_USE_PTHREADS
|
||||
# include <boost/detail/lwm_pthreads.hpp>
|
||||
# include <boost/detail/lwm_win32_cs.hpp>
|
||||
#else
|
||||
// Use #define BOOST_DISABLE_THREADS to avoid the error
|
||||
# error Unrecognized threading platform
|
||||
|
@@ -1,78 +0,0 @@
|
||||
#ifndef BOOST_DETAIL_LWM_GCC_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_LWM_GCC_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// boost/detail/lwm_gcc.hpp
|
||||
//
|
||||
// lightweight_mutex for GNU libstdc++ v3
|
||||
//
|
||||
// http://gcc.gnu.org/onlinedocs/porting/Thread-safety.html
|
||||
//
|
||||
// Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
|
||||
// Copyright (c) 2002 Lars Gullik Bj<42>nnes <larsbj@lyx.org>
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
//
|
||||
|
||||
#include <bits/atomicity.h>
|
||||
#include <sched.h>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class lightweight_mutex
|
||||
{
|
||||
private:
|
||||
|
||||
_Atomic_word a_;
|
||||
|
||||
lightweight_mutex(lightweight_mutex const &);
|
||||
lightweight_mutex & operator=(lightweight_mutex const &);
|
||||
|
||||
public:
|
||||
|
||||
lightweight_mutex(): a_(1)
|
||||
{
|
||||
}
|
||||
|
||||
class scoped_lock;
|
||||
friend class scoped_lock;
|
||||
|
||||
class scoped_lock
|
||||
{
|
||||
private:
|
||||
|
||||
lightweight_mutex & m_;
|
||||
|
||||
scoped_lock(scoped_lock const &);
|
||||
scoped_lock & operator=(scoped_lock const &);
|
||||
|
||||
public:
|
||||
|
||||
explicit scoped_lock(lightweight_mutex & m): m_(m)
|
||||
{
|
||||
while( !__exchange_and_add(&m_.a_, -1) )
|
||||
{
|
||||
__atomic_add(&m_.a_, 1);
|
||||
sched_yield();
|
||||
}
|
||||
}
|
||||
|
||||
~scoped_lock()
|
||||
{
|
||||
__atomic_add(&m_.a_, 1);
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_LWM_GCC_HPP_INCLUDED
|
@@ -1,78 +0,0 @@
|
||||
#ifndef BOOST_DETAIL_LWM_IRIX_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_LWM_IRIX_HPP_INCLUDED
|
||||
|
||||
#if _MSC_VER >= 1020
|
||||
#pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// boost/detail/lwm_irix.hpp
|
||||
//
|
||||
// Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
|
||||
// Copyright (c) 2002 Dan Gohman
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
//
|
||||
|
||||
#include <sgidefs.h>
|
||||
#include <mutex.h>
|
||||
#include <sched.h>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class lightweight_mutex
|
||||
{
|
||||
private:
|
||||
|
||||
__uint32_t l_;
|
||||
|
||||
lightweight_mutex(lightweight_mutex const &);
|
||||
lightweight_mutex & operator=(lightweight_mutex const &);
|
||||
|
||||
public:
|
||||
|
||||
lightweight_mutex(): l_(0)
|
||||
{
|
||||
}
|
||||
|
||||
class scoped_lock;
|
||||
friend class scoped_lock;
|
||||
|
||||
class scoped_lock
|
||||
{
|
||||
private:
|
||||
|
||||
lightweight_mutex & m_;
|
||||
|
||||
scoped_lock(scoped_lock const &);
|
||||
scoped_lock & operator=(scoped_lock const &);
|
||||
|
||||
public:
|
||||
|
||||
explicit scoped_lock(lightweight_mutex & m): m_(m)
|
||||
{
|
||||
while( test_and_set32(&m_.l_, 1) )
|
||||
{
|
||||
sched_yield();
|
||||
}
|
||||
}
|
||||
|
||||
~scoped_lock()
|
||||
{
|
||||
m_.l_ = 0;
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_LWM_IRIX_HPP_INCLUDED
|
@@ -1,89 +0,0 @@
|
||||
#ifndef BOOST_DETAIL_LWM_LINUX_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_LWM_LINUX_HPP_INCLUDED
|
||||
|
||||
#if _MSC_VER >= 1020
|
||||
#pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// boost/detail/lwm_linux.hpp
|
||||
//
|
||||
// Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
//
|
||||
|
||||
//
|
||||
// This implementation uses <asm/atomic.h>. This is a kernel header;
|
||||
// using kernel headers in a user program may cause a number of problems,
|
||||
// and not all flavors of Linux provide the atomic instructions.
|
||||
//
|
||||
// This file is only provided because the performance of this implementation
|
||||
// is about 3.5 times higher than the pthreads version. Use at your own risk
|
||||
// (by defining BOOST_USE_ASM_ATOMIC_H.)
|
||||
//
|
||||
|
||||
#include <asm/atomic.h>
|
||||
#include <sched.h>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class lightweight_mutex
|
||||
{
|
||||
private:
|
||||
|
||||
atomic_t a_;
|
||||
|
||||
lightweight_mutex(lightweight_mutex const &);
|
||||
lightweight_mutex & operator=(lightweight_mutex const &);
|
||||
|
||||
public:
|
||||
|
||||
lightweight_mutex()
|
||||
{
|
||||
atomic_t a = ATOMIC_INIT(1);
|
||||
a_ = a;
|
||||
}
|
||||
|
||||
class scoped_lock;
|
||||
friend class scoped_lock;
|
||||
|
||||
class scoped_lock
|
||||
{
|
||||
private:
|
||||
|
||||
lightweight_mutex & m_;
|
||||
|
||||
scoped_lock(scoped_lock const &);
|
||||
scoped_lock & operator=(scoped_lock const &);
|
||||
|
||||
public:
|
||||
|
||||
explicit scoped_lock(lightweight_mutex & m): m_(m)
|
||||
{
|
||||
while( !atomic_dec_and_test(&m_.a_) )
|
||||
{
|
||||
atomic_inc(&m_.a_);
|
||||
sched_yield();
|
||||
}
|
||||
}
|
||||
|
||||
~scoped_lock()
|
||||
{
|
||||
atomic_inc(&m_.a_);
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_LWM_LINUX_HPP_INCLUDED
|
@@ -1,8 +1,10 @@
|
||||
#ifndef BOOST_DETAIL_LWM_NOP_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_LWM_NOP_HPP_INCLUDED
|
||||
|
||||
#if _MSC_VER >= 1020
|
||||
#pragma once
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
@@ -10,10 +12,9 @@
|
||||
//
|
||||
// Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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
|
||||
|
@@ -1,8 +1,10 @@
|
||||
#ifndef BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED
|
||||
|
||||
#if _MSC_VER >= 1020
|
||||
#pragma once
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
@@ -10,10 +12,9 @@
|
||||
//
|
||||
// Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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>
|
||||
|
@@ -1,121 +0,0 @@
|
||||
#ifndef BOOST_DETAIL_LWM_WIN32_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_LWM_WIN32_HPP_INCLUDED
|
||||
|
||||
#if _MSC_VER >= 1020
|
||||
#pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// boost/detail/lwm_win32.hpp
|
||||
//
|
||||
// Copyright (c) 2002, 2003 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
//
|
||||
|
||||
#ifdef BOOST_USE_WINDOWS_H
|
||||
# include <windows.h>
|
||||
#endif
|
||||
|
||||
#ifdef __BORLANDC__
|
||||
# pragma warn -8027 // Functions containing while are not expanded inline
|
||||
#endif
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
#ifndef BOOST_USE_WINDOWS_H
|
||||
|
||||
#ifdef _WIN64
|
||||
|
||||
// Intel 6.0 on Win64 version, posted by Tim Fenders to [boost-users]
|
||||
|
||||
extern "C" long_type __cdecl _InterlockedExchange(long volatile *, long);
|
||||
|
||||
#pragma intrinsic(_InterlockedExchange)
|
||||
|
||||
inline long InterlockedExchange(long volatile* lp, long l)
|
||||
{
|
||||
return _InterlockedExchange(lp, l);
|
||||
}
|
||||
|
||||
#else // _WIN64
|
||||
|
||||
extern "C" __declspec(dllimport) long __stdcall InterlockedExchange(long volatile *, long);
|
||||
|
||||
#endif // _WIN64
|
||||
|
||||
extern "C" __declspec(dllimport) void __stdcall Sleep(unsigned long);
|
||||
|
||||
#endif // #ifndef BOOST_USE_WINDOWS_H
|
||||
|
||||
class lightweight_mutex
|
||||
{
|
||||
private:
|
||||
|
||||
long l_;
|
||||
|
||||
lightweight_mutex(lightweight_mutex const &);
|
||||
lightweight_mutex & operator=(lightweight_mutex const &);
|
||||
|
||||
public:
|
||||
|
||||
lightweight_mutex(): l_(0)
|
||||
{
|
||||
}
|
||||
|
||||
class scoped_lock;
|
||||
friend class scoped_lock;
|
||||
|
||||
class scoped_lock
|
||||
{
|
||||
private:
|
||||
|
||||
lightweight_mutex & m_;
|
||||
|
||||
scoped_lock(scoped_lock const &);
|
||||
scoped_lock & operator=(scoped_lock const &);
|
||||
|
||||
public:
|
||||
|
||||
explicit scoped_lock(lightweight_mutex & m): m_(m)
|
||||
{
|
||||
while( InterlockedExchange(&m_.l_, 1) )
|
||||
{
|
||||
// Note: changed to Sleep(1) from Sleep(0).
|
||||
// According to MSDN, Sleep(0) will never yield
|
||||
// to a lower-priority thread, whereas Sleep(1)
|
||||
// will. Performance seems not to be affected.
|
||||
|
||||
Sleep(1);
|
||||
}
|
||||
}
|
||||
|
||||
~scoped_lock()
|
||||
{
|
||||
InterlockedExchange(&m_.l_, 0);
|
||||
|
||||
// Note: adding a yield here will make
|
||||
// the spinlock more fair and will increase the overall
|
||||
// performance of some applications substantially in
|
||||
// high contention situations, but will penalize the
|
||||
// low contention / single thread case up to 5x
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#ifdef __BORLANDC__
|
||||
# pragma warn .8027 // Functions containing while are not expanded inline
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_LWM_WIN32_HPP_INCLUDED
|
@@ -1,8 +1,10 @@
|
||||
#ifndef BOOST_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
|
||||
|
||||
#if _MSC_VER >= 1020
|
||||
#pragma once
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
@@ -10,10 +12,9 @@
|
||||
//
|
||||
// Copyright (c) 2002, 2003 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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 BOOST_USE_WINDOWS_H
|
||||
@@ -28,7 +29,7 @@ namespace detail
|
||||
|
||||
#ifndef BOOST_USE_WINDOWS_H
|
||||
|
||||
struct CRITICAL_SECTION
|
||||
struct critical_section
|
||||
{
|
||||
struct critical_section_debug * DebugInfo;
|
||||
long LockCount;
|
||||
@@ -42,10 +43,14 @@ 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 *);
|
||||
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;
|
||||
|
||||
#endif // #ifndef BOOST_USE_WINDOWS_H
|
||||
|
||||
@@ -53,7 +58,7 @@ class lightweight_mutex
|
||||
{
|
||||
private:
|
||||
|
||||
CRITICAL_SECTION cs_;
|
||||
critical_section cs_;
|
||||
|
||||
lightweight_mutex(lightweight_mutex const &);
|
||||
lightweight_mutex & operator=(lightweight_mutex const &);
|
||||
|
@@ -7,10 +7,9 @@
|
||||
// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
|
||||
// Copyright (c) 2001, 2002 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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.
|
||||
//
|
||||
|
@@ -1,301 +1,47 @@
|
||||
#ifndef BOOST_DETAIL_SHARED_COUNT_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SHARED_COUNT_HPP_INCLUDED
|
||||
|
||||
#if _MSC_VER >= 1020
|
||||
#pragma once
|
||||
// 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
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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_USE_STD_ALLOCATOR) && defined(BOOST_SP_USE_QUICK_ALLOCATOR)
|
||||
# error BOOST_SP_USE_STD_ALLOCATOR and BOOST_SP_USE_QUICK_ALLOCATOR are incompatible.
|
||||
#endif
|
||||
|
||||
#include <boost/checked_delete.hpp>
|
||||
#include <boost/throw_exception.hpp>
|
||||
#include <boost/detail/lightweight_mutex.hpp>
|
||||
|
||||
#if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
|
||||
#include <boost/detail/quick_allocator.hpp>
|
||||
#endif
|
||||
|
||||
#include <memory> // std::auto_ptr, std::allocator
|
||||
#include <functional> // std::less
|
||||
#include <exception> // std::exception
|
||||
#include <new> // std::bad_alloc
|
||||
#include <typeinfo> // std::type_info in get_deleter
|
||||
#include <cstddef> // std::size_t
|
||||
|
||||
#ifdef __BORLANDC__
|
||||
# pragma warn -8026 // Functions with excep. spec. are not expanded inline
|
||||
# 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>
|
||||
// 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
|
||||
#include <new> // std::bad_alloc
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
// Debug hooks
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
|
||||
void sp_scalar_constructor_hook(void * px, std::size_t size, void * pn);
|
||||
void sp_array_constructor_hook(void * px);
|
||||
void sp_scalar_destructor_hook(void * px, std::size_t size, void * pn);
|
||||
void sp_array_destructor_hook(void * px);
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
// The standard library that comes with Borland C++ 5.5.1
|
||||
// defines std::exception and its members as having C calling
|
||||
// convention (-pc). When the definition of bad_weak_ptr
|
||||
// is compiled with -ps, the compiler issues an error.
|
||||
// Hence, the temporary #pragma option -pc below. The version
|
||||
// check is deliberately conservative.
|
||||
|
||||
#if defined(__BORLANDC__) && __BORLANDC__ == 0x551
|
||||
# pragma option push -pc
|
||||
#endif
|
||||
|
||||
class bad_weak_ptr: public std::exception
|
||||
{
|
||||
public:
|
||||
|
||||
virtual char const * what() const throw()
|
||||
{
|
||||
return "boost::bad_weak_ptr";
|
||||
}
|
||||
};
|
||||
|
||||
#if defined(__BORLANDC__) && __BORLANDC__ == 0x551
|
||||
# pragma option pop
|
||||
#endif
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
typedef detail::lightweight_mutex mutex_type;
|
||||
|
||||
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
|
||||
|
||||
// destruct() is called when weak_count_ drops to zero.
|
||||
|
||||
virtual void destruct() // nothrow
|
||||
{
|
||||
delete this;
|
||||
}
|
||||
|
||||
virtual void * get_deleter(std::type_info const & ti) = 0;
|
||||
|
||||
void add_ref()
|
||||
{
|
||||
#if defined(BOOST_HAS_THREADS)
|
||||
mutex_type::scoped_lock lock(mtx_);
|
||||
#endif
|
||||
if(use_count_ == 0 && weak_count_ != 0) boost::throw_exception(boost::bad_weak_ptr());
|
||||
++use_count_;
|
||||
++weak_count_;
|
||||
}
|
||||
|
||||
void release() // nothrow
|
||||
{
|
||||
{
|
||||
#if defined(BOOST_HAS_THREADS)
|
||||
mutex_type::scoped_lock lock(mtx_);
|
||||
#endif
|
||||
long new_use_count = --use_count_;
|
||||
|
||||
if(new_use_count != 0)
|
||||
{
|
||||
--weak_count_;
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
dispose();
|
||||
weak_release();
|
||||
}
|
||||
|
||||
void weak_add_ref() // nothrow
|
||||
{
|
||||
#if defined(BOOST_HAS_THREADS)
|
||||
mutex_type::scoped_lock lock(mtx_);
|
||||
#endif
|
||||
++weak_count_;
|
||||
}
|
||||
|
||||
void weak_release() // nothrow
|
||||
{
|
||||
long new_weak_count;
|
||||
|
||||
{
|
||||
#if defined(BOOST_HAS_THREADS)
|
||||
mutex_type::scoped_lock lock(mtx_);
|
||||
#endif
|
||||
new_weak_count = --weak_count_;
|
||||
}
|
||||
|
||||
if(new_weak_count == 0)
|
||||
{
|
||||
destruct();
|
||||
}
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
#if defined(BOOST_HAS_THREADS)
|
||||
mutex_type::scoped_lock lock(mtx_);
|
||||
#endif
|
||||
return use_count_;
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
sp_counted_base(sp_counted_base const &);
|
||||
sp_counted_base & operator= (sp_counted_base const &);
|
||||
|
||||
// inv: use_count_ <= weak_count_
|
||||
|
||||
long use_count_;
|
||||
long weak_count_;
|
||||
|
||||
#if defined(BOOST_HAS_THREADS)
|
||||
mutable mutex_type mtx_;
|
||||
#endif
|
||||
};
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
|
||||
template<class T> void cbi_call_constructor_hook(sp_counted_base * pn, T * px, checked_deleter<T> const &, int)
|
||||
{
|
||||
boost::sp_scalar_constructor_hook(px, sizeof(T), pn);
|
||||
}
|
||||
|
||||
template<class T> void cbi_call_constructor_hook(sp_counted_base *, T * px, checked_array_deleter<T> const &, int)
|
||||
{
|
||||
boost::sp_array_constructor_hook(px);
|
||||
}
|
||||
|
||||
template<class P, class D> void cbi_call_constructor_hook(sp_counted_base *, P const &, D const &, long)
|
||||
{
|
||||
}
|
||||
|
||||
template<class T> void cbi_call_destructor_hook(sp_counted_base * pn, T * px, checked_deleter<T> const &, int)
|
||||
{
|
||||
boost::sp_scalar_destructor_hook(px, sizeof(T), pn);
|
||||
}
|
||||
|
||||
template<class T> void cbi_call_destructor_hook(sp_counted_base *, T * px, checked_array_deleter<T> const &, int)
|
||||
{
|
||||
boost::sp_array_destructor_hook(px);
|
||||
}
|
||||
|
||||
template<class P, class D> void cbi_call_destructor_hook(sp_counted_base *, P const &, D const &, long)
|
||||
{
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
//
|
||||
// Borland's Codeguard trips up over the -Vx- option here:
|
||||
//
|
||||
#ifdef __CODEGUARD__
|
||||
# pragma option push -Vx-
|
||||
#endif
|
||||
|
||||
template<class P, class D> class sp_counted_base_impl: public sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
P ptr; // copy constructor must not throw
|
||||
D del; // copy constructor must not throw
|
||||
|
||||
sp_counted_base_impl(sp_counted_base_impl const &);
|
||||
sp_counted_base_impl & operator= (sp_counted_base_impl const &);
|
||||
|
||||
typedef sp_counted_base_impl<P, D> this_type;
|
||||
|
||||
public:
|
||||
|
||||
// pre: initial_use_count <= initial_weak_count, d(p) must not throw
|
||||
|
||||
sp_counted_base_impl(P p, D d): ptr(p), del(d)
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
detail::cbi_call_constructor_hook(this, p, d, 0);
|
||||
#endif
|
||||
}
|
||||
|
||||
virtual void dispose() // nothrow
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
detail::cbi_call_destructor_hook(this, ptr, del, 0);
|
||||
#endif
|
||||
del(ptr);
|
||||
}
|
||||
|
||||
virtual void * get_deleter(std::type_info const & ti)
|
||||
{
|
||||
return ti == typeid(D)? &del: 0;
|
||||
}
|
||||
|
||||
#if defined(BOOST_SP_USE_STD_ALLOCATOR)
|
||||
|
||||
void * operator new(std::size_t)
|
||||
{
|
||||
return std::allocator<this_type>().allocate(1, static_cast<this_type *>(0));
|
||||
}
|
||||
|
||||
void operator delete(void * p)
|
||||
{
|
||||
std::allocator<this_type>().deallocate(static_cast<this_type *>(p), 1);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
|
||||
|
||||
void * operator new(std::size_t)
|
||||
{
|
||||
return quick_allocator<this_type>::alloc();
|
||||
}
|
||||
|
||||
void operator delete(void * p)
|
||||
{
|
||||
quick_allocator<this_type>::dealloc(p);
|
||||
}
|
||||
|
||||
#endif
|
||||
};
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
|
||||
int const shared_count_id = 0x2C35F101;
|
||||
@@ -303,6 +49,8 @@ int const weak_count_id = 0x298C38A4;
|
||||
|
||||
#endif
|
||||
|
||||
struct sp_nothrow_tag {};
|
||||
|
||||
class weak_count;
|
||||
|
||||
class shared_count
|
||||
@@ -326,7 +74,7 @@ public:
|
||||
{
|
||||
}
|
||||
|
||||
template<class P, class D> shared_count(P p, D d): pi_(0)
|
||||
template<class Y> explicit shared_count( Y * p ): pi_( 0 )
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
@@ -335,7 +83,44 @@ public:
|
||||
|
||||
try
|
||||
{
|
||||
pi_ = new sp_counted_base_impl<P, D>(p, d);
|
||||
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(...)
|
||||
{
|
||||
@@ -345,7 +130,7 @@ public:
|
||||
|
||||
#else
|
||||
|
||||
pi_ = new sp_counted_base_impl<P, D>(p, d);
|
||||
pi_ = new sp_counted_impl_pd<P, D>(p, d);
|
||||
|
||||
if(pi_ == 0)
|
||||
{
|
||||
@@ -353,6 +138,52 @@ public:
|
||||
boost::throw_exception(std::bad_alloc());
|
||||
}
|
||||
|
||||
#endif
|
||||
}
|
||||
|
||||
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
|
||||
}
|
||||
|
||||
@@ -361,11 +192,20 @@ public:
|
||||
// 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_base_impl< Y *, checked_deleter<Y> >(r.get(), checked_deleter<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();
|
||||
}
|
||||
|
||||
@@ -373,7 +213,7 @@ public:
|
||||
|
||||
~shared_count() // nothrow
|
||||
{
|
||||
if(pi_ != 0) pi_->release();
|
||||
if( pi_ != 0 ) pi_->release();
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
id_ = 0;
|
||||
#endif
|
||||
@@ -384,17 +224,22 @@ public:
|
||||
, id_(shared_count_id)
|
||||
#endif
|
||||
{
|
||||
if(pi_ != 0) pi_->add_ref();
|
||||
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( 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 != 0) tmp->add_ref();
|
||||
if(pi_ != 0) pi_->release();
|
||||
pi_ = tmp;
|
||||
|
||||
if( tmp != pi_ )
|
||||
{
|
||||
if( tmp != 0 ) tmp->add_ref_copy();
|
||||
if( pi_ != 0 ) pi_->release();
|
||||
pi_ = tmp;
|
||||
}
|
||||
|
||||
return *this;
|
||||
}
|
||||
@@ -416,6 +261,11 @@ public:
|
||||
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_;
|
||||
@@ -423,19 +273,15 @@ public:
|
||||
|
||||
friend inline bool operator<(shared_count const & a, shared_count const & b)
|
||||
{
|
||||
return std::less<sp_counted_base *>()(a.pi_, b.pi_);
|
||||
return std::less<sp_counted_base *>()( a.pi_, b.pi_ );
|
||||
}
|
||||
|
||||
void * get_deleter(std::type_info const & ti) const
|
||||
void * get_deleter( sp_typeinfo const & ti ) const
|
||||
{
|
||||
return pi_? pi_->get_deleter(ti): 0;
|
||||
return pi_? pi_->get_deleter( ti ): 0;
|
||||
}
|
||||
};
|
||||
|
||||
#ifdef __CODEGUARD__
|
||||
# pragma option pop
|
||||
#endif
|
||||
|
||||
|
||||
class weak_count
|
||||
{
|
||||
@@ -485,9 +331,13 @@ public:
|
||||
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;
|
||||
|
||||
if( tmp != pi_ )
|
||||
{
|
||||
if(tmp != 0) tmp->weak_add_ref();
|
||||
if(pi_ != 0) pi_->weak_release();
|
||||
pi_ = tmp;
|
||||
}
|
||||
|
||||
return *this;
|
||||
}
|
||||
@@ -495,9 +345,13 @@ public:
|
||||
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;
|
||||
|
||||
if( tmp != pi_ )
|
||||
{
|
||||
if(tmp != 0) tmp->weak_add_ref();
|
||||
if(pi_ != 0) pi_->weak_release();
|
||||
pi_ = tmp;
|
||||
}
|
||||
|
||||
return *this;
|
||||
}
|
||||
@@ -525,18 +379,25 @@ public:
|
||||
}
|
||||
};
|
||||
|
||||
inline shared_count::shared_count(weak_count const & r): pi_(r.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)
|
||||
if( pi_ == 0 || !pi_->add_ref_lock() )
|
||||
{
|
||||
pi_->add_ref();
|
||||
boost::throw_exception( boost::bad_weak_ptr() );
|
||||
}
|
||||
else
|
||||
}
|
||||
|
||||
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() )
|
||||
{
|
||||
boost::throw_exception(boost::bad_weak_ptr());
|
||||
pi_ = 0;
|
||||
}
|
||||
}
|
||||
|
||||
@@ -546,7 +407,6 @@ inline shared_count::shared_count(weak_count const & r): pi_(r.pi_)
|
||||
|
||||
#ifdef __BORLANDC__
|
||||
# pragma warn .8027 // Functions containing try are not expanded inline
|
||||
# pragma warn .8026 // Functions with excep. spec. are not expanded inline
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SHARED_COUNT_HPP_INCLUDED
|
||||
|
@@ -7,10 +7,9 @@
|
||||
// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
|
||||
// Copyright (c) 2001, 2002 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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_ptr.htm for documentation.
|
||||
//
|
||||
|
76
include/boost/detail/sp_convertible.hpp
Normal file
76
include/boost/detail/sp_convertible.hpp
Normal file
@@ -0,0 +1,76 @@
|
||||
#ifndef BOOST_DETAIL_SP_CONVERTIBLE_HPP_INCLUDED
|
||||
#define BOOST_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__ <= 0x610 )
|
||||
# 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( (Y*)0 ) ) == sizeof(yes) };
|
||||
};
|
||||
|
||||
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_DETAIL_SP_TYPEINFO_HPP_INCLUDED
|
66
include/boost/detail/sp_counted_base.hpp
Normal file
66
include/boost/detail/sp_counted_base.hpp
Normal file
@@ -0,0 +1,66 @@
|
||||
#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, 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>
|
||||
|
||||
#if defined( BOOST_SP_DISABLE_THREADS )
|
||||
# include <boost/detail/sp_counted_base_nt.hpp>
|
||||
|
||||
#elif defined( BOOST_SP_USE_SPINLOCK )
|
||||
# include <boost/detail/sp_counted_base_spin.hpp>
|
||||
|
||||
#elif defined( BOOST_SP_USE_PTHREADS )
|
||||
# include <boost/detail/sp_counted_base_pt.hpp>
|
||||
|
||||
#elif defined( BOOST_DISABLE_THREADS ) && !defined( BOOST_SP_ENABLE_THREADS ) && !defined( BOOST_DISABLE_WIN32 )
|
||||
# include <boost/detail/sp_counted_base_nt.hpp>
|
||||
|
||||
#elif defined( __GNUC__ ) && ( defined( __i386__ ) || defined( __x86_64__ ) )
|
||||
# include <boost/detail/sp_counted_base_gcc_x86.hpp>
|
||||
|
||||
#elif defined( __GNUC__ ) && defined( __ia64__ ) && !defined( __INTEL_COMPILER )
|
||||
# include <boost/detail/sp_counted_base_gcc_ia64.hpp>
|
||||
|
||||
#elif defined(__HP_aCC) && defined(__ia64)
|
||||
# include <boost/detail/sp_counted_base_acc_ia64.hpp>
|
||||
|
||||
#elif defined( __MWERKS__ ) && defined( __POWERPC__ )
|
||||
# include <boost/detail/sp_counted_base_cw_ppc.hpp>
|
||||
|
||||
#elif defined( __GNUC__ ) && ( defined( __powerpc__ ) || defined( __ppc__ ) || defined( __ppc ) )
|
||||
# include <boost/detail/sp_counted_base_gcc_ppc.hpp>
|
||||
|
||||
#elif defined(__GNUC__) && ( __GNUC__ * 100 + __GNUC_MINOR__ >= 401 ) && !defined( __arm__ ) && !defined( __hppa ) && ( !defined( __INTEL_COMPILER ) || defined( __ia64__ ) )
|
||||
# include <boost/detail/sp_counted_base_sync.hpp>
|
||||
|
||||
#elif defined(__GNUC__) && ( defined( __sparcv9 ) || ( defined( __sparcv8 ) && ( __GNUC__ * 100 + __GNUC_MINOR__ >= 402 ) ) )
|
||||
# include <boost/detail/sp_counted_base_gcc_sparc.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>
|
||||
|
||||
#else
|
||||
# include <boost/detail/sp_counted_base_spin.hpp>
|
||||
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_HPP_INCLUDED
|
150
include/boost/detail/sp_counted_base_acc_ia64.hpp
Normal file
150
include/boost/detail/sp_counted_base_acc_ia64.hpp
Normal file
@@ -0,0 +1,150 @@
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_ACC_IA64_HPP_INCLUDED
|
||||
#define BOOST_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;
|
||||
|
||||
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_DETAIL_SP_COUNTED_BASE_ACC_IA64_HPP_INCLUDED
|
170
include/boost/detail/sp_counted_base_cw_ppc.hpp
Normal file
170
include/boost/detail/sp_counted_base_cw_ppc.hpp
Normal file
@@ -0,0 +1,170 @@
|
||||
#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
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_cw_ppc.hpp - CodeWarrior on PowerPC
|
||||
//
|
||||
// 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)
|
||||
//
|
||||
//
|
||||
// Lock-free algorithm by Alexander Terekhov
|
||||
//
|
||||
// Thanks to Ben Hitchings for the #weak + (#shared != 0)
|
||||
// formulation
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline void atomic_increment( register long * pw )
|
||||
{
|
||||
register int a;
|
||||
|
||||
asm
|
||||
{
|
||||
loop:
|
||||
|
||||
lwarx a, 0, pw
|
||||
addi a, a, 1
|
||||
stwcx. a, 0, pw
|
||||
bne- loop
|
||||
}
|
||||
}
|
||||
|
||||
inline long atomic_decrement( register long * pw )
|
||||
{
|
||||
register int a;
|
||||
|
||||
asm
|
||||
{
|
||||
sync
|
||||
|
||||
loop:
|
||||
|
||||
lwarx a, 0, pw
|
||||
addi a, a, -1
|
||||
stwcx. a, 0, pw
|
||||
bne- loop
|
||||
|
||||
isync
|
||||
}
|
||||
|
||||
return a;
|
||||
}
|
||||
|
||||
inline long atomic_conditional_increment( register long * pw )
|
||||
{
|
||||
register int a;
|
||||
|
||||
asm
|
||||
{
|
||||
loop:
|
||||
|
||||
lwarx a, 0, pw
|
||||
cmpwi a, 0
|
||||
beq store
|
||||
|
||||
addi a, a, 1
|
||||
|
||||
store:
|
||||
|
||||
stwcx. a, 0, pw
|
||||
bne- loop
|
||||
}
|
||||
|
||||
return a;
|
||||
}
|
||||
|
||||
class sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base( sp_counted_base const & );
|
||||
sp_counted_base & operator= ( sp_counted_base const & );
|
||||
|
||||
long use_count_; // #shared
|
||||
long 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;
|
||||
|
||||
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<long const volatile &>( use_count_ );
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_CW_PPC_HPP_INCLUDED
|
158
include/boost/detail/sp_counted_base_cw_x86.hpp
Normal file
158
include/boost/detail/sp_counted_base_cw_x86.hpp
Normal file
@@ -0,0 +1,158 @@
|
||||
#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
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_cw_x86.hpp - CodeWarrion on 486+
|
||||
//
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
|
||||
// Copyright 2004-2005 Peter Dimov
|
||||
// Copyright 2005 Rene Rivera
|
||||
//
|
||||
// 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>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline int atomic_exchange_and_add( int * pw, int dv )
|
||||
{
|
||||
// int r = *pw;
|
||||
// *pw += dv;
|
||||
// return r;
|
||||
|
||||
asm
|
||||
{
|
||||
mov esi, [pw]
|
||||
mov eax, dv
|
||||
lock xadd dword ptr [esi], eax
|
||||
}
|
||||
}
|
||||
|
||||
inline void atomic_increment( int * pw )
|
||||
{
|
||||
//atomic_exchange_and_add( pw, 1 );
|
||||
|
||||
asm
|
||||
{
|
||||
mov esi, [pw]
|
||||
lock inc dword ptr [esi]
|
||||
}
|
||||
}
|
||||
|
||||
inline int atomic_conditional_increment( int * pw )
|
||||
{
|
||||
// int rv = *pw;
|
||||
// if( rv != 0 ) ++*pw;
|
||||
// return rv;
|
||||
|
||||
asm
|
||||
{
|
||||
mov esi, [pw]
|
||||
mov eax, dword ptr [esi]
|
||||
L0:
|
||||
test eax, eax
|
||||
je L1
|
||||
mov ebx, eax
|
||||
inc ebx
|
||||
lock cmpxchg dword ptr [esi], ebx
|
||||
jne L0
|
||||
L1:
|
||||
}
|
||||
}
|
||||
|
||||
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;
|
||||
|
||||
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
|
||||
{
|
||||
return static_cast<int const volatile &>( use_count_ );
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_X86_HPP_INCLUDED
|
157
include/boost/detail/sp_counted_base_gcc_ia64.hpp
Normal file
157
include/boost/detail/sp_counted_base_gcc_ia64.hpp
Normal file
@@ -0,0 +1,157 @@
|
||||
#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 2005 Ben Hutchings
|
||||
//
|
||||
// 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;
|
||||
|
||||
// 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" :
|
||||
"=r"(tmp), "=m"(*pw) :
|
||||
"m"( *pw ));
|
||||
}
|
||||
|
||||
inline int atomic_decrement( int * pw )
|
||||
{
|
||||
// return --*pw;
|
||||
|
||||
int rv;
|
||||
|
||||
__asm__ (" fetchadd4.rel %0=%1,-1 ;; \n"
|
||||
" cmp.eq p7,p0=1,%0 ;; \n"
|
||||
"(p7) ld4.acq %0=%1 " :
|
||||
"=&r"(rv), "=m"(*pw) :
|
||||
"m"( *pw ) :
|
||||
"p7");
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
inline int atomic_conditional_increment( int * pw )
|
||||
{
|
||||
// if( *pw != 0 ) ++*pw;
|
||||
// return *pw;
|
||||
|
||||
int rv, tmp, tmp2;
|
||||
|
||||
__asm__ ("0: ld4 %0=%3 ;; \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"
|
||||
" 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 ) :
|
||||
"ar.ccv", "p7");
|
||||
|
||||
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;
|
||||
|
||||
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_DETAIL_SP_COUNTED_BASE_GCC_IA64_HPP_INCLUDED
|
181
include/boost/detail/sp_counted_base_gcc_ppc.hpp
Normal file
181
include/boost/detail/sp_counted_base_gcc_ppc.hpp
Normal file
@@ -0,0 +1,181 @@
|
||||
#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
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_gcc_ppc.hpp - g++ on PowerPC
|
||||
//
|
||||
// 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)
|
||||
//
|
||||
//
|
||||
// Lock-free algorithm by Alexander Terekhov
|
||||
//
|
||||
// Thanks to Ben Hitchings for the #weak + (#shared != 0)
|
||||
// formulation
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline void atomic_increment( int * pw )
|
||||
{
|
||||
// ++*pw;
|
||||
|
||||
int tmp;
|
||||
|
||||
__asm__
|
||||
(
|
||||
"0:\n\t"
|
||||
"lwarx %1, 0, %2\n\t"
|
||||
"addi %1, %1, 1\n\t"
|
||||
"stwcx. %1, 0, %2\n\t"
|
||||
"bne- 0b":
|
||||
|
||||
"=m"( *pw ), "=&b"( tmp ):
|
||||
"r"( pw ), "m"( *pw ):
|
||||
"cc"
|
||||
);
|
||||
}
|
||||
|
||||
inline int atomic_decrement( int * pw )
|
||||
{
|
||||
// return --*pw;
|
||||
|
||||
int rv;
|
||||
|
||||
__asm__ __volatile__
|
||||
(
|
||||
"sync\n\t"
|
||||
"0:\n\t"
|
||||
"lwarx %1, 0, %2\n\t"
|
||||
"addi %1, %1, -1\n\t"
|
||||
"stwcx. %1, 0, %2\n\t"
|
||||
"bne- 0b\n\t"
|
||||
"isync":
|
||||
|
||||
"=m"( *pw ), "=&b"( rv ):
|
||||
"r"( pw ), "m"( *pw ):
|
||||
"memory", "cc"
|
||||
);
|
||||
|
||||
return rv;
|
||||
}
|
||||
|
||||
inline int atomic_conditional_increment( int * pw )
|
||||
{
|
||||
// if( *pw != 0 ) ++*pw;
|
||||
// return *pw;
|
||||
|
||||
int rv;
|
||||
|
||||
__asm__
|
||||
(
|
||||
"0:\n\t"
|
||||
"lwarx %1, 0, %2\n\t"
|
||||
"cmpwi %1, 0\n\t"
|
||||
"beq 1f\n\t"
|
||||
"addi %1, %1, 1\n\t"
|
||||
"1:\n\t"
|
||||
"stwcx. %1, 0, %2\n\t"
|
||||
"bne- 0b":
|
||||
|
||||
"=m"( *pw ), "=&b"( rv ):
|
||||
"r"( pw ), "m"( *pw ):
|
||||
"cc"
|
||||
);
|
||||
|
||||
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;
|
||||
|
||||
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_PPC_HPP_INCLUDED
|
166
include/boost/detail/sp_counted_base_gcc_sparc.hpp
Normal file
166
include/boost/detail/sp_counted_base_gcc_sparc.hpp
Normal file
@@ -0,0 +1,166 @@
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_SPARC_HPP_INCLUDED
|
||||
#define BOOST_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 %0, %2, %1"
|
||||
: "+m" (*dest_), "+r" (swap_)
|
||||
: "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;
|
||||
|
||||
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_DETAIL_SP_COUNTED_BASE_GCC_SPARC_HPP_INCLUDED
|
173
include/boost/detail/sp_counted_base_gcc_x86.hpp
Normal file
173
include/boost/detail/sp_counted_base_gcc_x86.hpp
Normal file
@@ -0,0 +1,173 @@
|
||||
#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
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_gcc_x86.hpp - g++ on 486+ or AMD64
|
||||
//
|
||||
// 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)
|
||||
//
|
||||
//
|
||||
// Lock-free algorithm by Alexander Terekhov
|
||||
//
|
||||
// Thanks to Ben Hitchings for the #weak + (#shared != 0)
|
||||
// formulation
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
inline 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)
|
||||
"m"( *pw ), "1"( dv ): // inputs (%2, %3 == %1)
|
||||
"memory", "cc" // clobbers
|
||||
);
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
inline void atomic_increment( int * pw )
|
||||
{
|
||||
//atomic_exchange_and_add( pw, 1 );
|
||||
|
||||
__asm__
|
||||
(
|
||||
"lock\n\t"
|
||||
"incl %0":
|
||||
"=m"( *pw ): // output (%0)
|
||||
"m"( *pw ): // input (%1)
|
||||
"cc" // clobbers
|
||||
);
|
||||
}
|
||||
|
||||
inline int atomic_conditional_increment( int * pw )
|
||||
{
|
||||
// int rv = *pw;
|
||||
// if( rv != 0 ) ++*pw;
|
||||
// return rv;
|
||||
|
||||
int rv, tmp;
|
||||
|
||||
__asm__
|
||||
(
|
||||
"movl %0, %%eax\n\t"
|
||||
"0:\n\t"
|
||||
"test %%eax, %%eax\n\t"
|
||||
"je 1f\n\t"
|
||||
"movl %%eax, %2\n\t"
|
||||
"incl %2\n\t"
|
||||
"lock\n\t"
|
||||
"cmpxchgl %2, %0\n\t"
|
||||
"jne 0b\n\t"
|
||||
"1:":
|
||||
"=m"( *pw ), "=&a"( rv ), "=&r"( tmp ): // outputs (%0, %1, %2)
|
||||
"m"( *pw ): // input (%3)
|
||||
"cc" // clobbers
|
||||
);
|
||||
|
||||
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;
|
||||
|
||||
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
|
||||
{
|
||||
return static_cast<int const volatile &>( use_count_ );
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_X86_HPP_INCLUDED
|
107
include/boost/detail/sp_counted_base_nt.hpp
Normal file
107
include/boost/detail/sp_counted_base_nt.hpp
Normal file
@@ -0,0 +1,107 @@
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_nt.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)
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base( sp_counted_base const & );
|
||||
sp_counted_base & operator= ( sp_counted_base const & );
|
||||
|
||||
long use_count_; // #shared
|
||||
long 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;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
++use_count_;
|
||||
}
|
||||
|
||||
bool add_ref_lock() // true on success
|
||||
{
|
||||
if( use_count_ == 0 ) return false;
|
||||
++use_count_;
|
||||
return true;
|
||||
}
|
||||
|
||||
void release() // nothrow
|
||||
{
|
||||
if( --use_count_ == 0 )
|
||||
{
|
||||
dispose();
|
||||
weak_release();
|
||||
}
|
||||
}
|
||||
|
||||
void weak_add_ref() // nothrow
|
||||
{
|
||||
++weak_count_;
|
||||
}
|
||||
|
||||
void weak_release() // nothrow
|
||||
{
|
||||
if( --weak_count_ == 0 )
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return use_count_;
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
|
135
include/boost/detail/sp_counted_base_pt.hpp
Normal file
135
include/boost/detail/sp_counted_base_pt.hpp
Normal file
@@ -0,0 +1,135 @@
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_PT_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_BASE_PT_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_pt.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)
|
||||
//
|
||||
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
#include <pthread.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 & );
|
||||
|
||||
long use_count_; // #shared
|
||||
long weak_count_; // #weak + (#shared != 0)
|
||||
|
||||
mutable pthread_mutex_t m_;
|
||||
|
||||
public:
|
||||
|
||||
sp_counted_base(): use_count_( 1 ), weak_count_( 1 )
|
||||
{
|
||||
// HPUX 10.20 / DCE has a nonstandard pthread_mutex_init
|
||||
|
||||
#if defined(__hpux) && defined(_DECTHREADS_)
|
||||
pthread_mutex_init( &m_, pthread_mutexattr_default );
|
||||
#else
|
||||
pthread_mutex_init( &m_, 0 );
|
||||
#endif
|
||||
}
|
||||
|
||||
virtual ~sp_counted_base() // nothrow
|
||||
{
|
||||
pthread_mutex_destroy( &m_ );
|
||||
}
|
||||
|
||||
// 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;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
pthread_mutex_lock( &m_ );
|
||||
++use_count_;
|
||||
pthread_mutex_unlock( &m_ );
|
||||
}
|
||||
|
||||
bool add_ref_lock() // true on success
|
||||
{
|
||||
pthread_mutex_lock( &m_ );
|
||||
bool r = use_count_ == 0? false: ( ++use_count_, true );
|
||||
pthread_mutex_unlock( &m_ );
|
||||
return r;
|
||||
}
|
||||
|
||||
void release() // nothrow
|
||||
{
|
||||
pthread_mutex_lock( &m_ );
|
||||
long new_use_count = --use_count_;
|
||||
pthread_mutex_unlock( &m_ );
|
||||
|
||||
if( new_use_count == 0 )
|
||||
{
|
||||
dispose();
|
||||
weak_release();
|
||||
}
|
||||
}
|
||||
|
||||
void weak_add_ref() // nothrow
|
||||
{
|
||||
pthread_mutex_lock( &m_ );
|
||||
++weak_count_;
|
||||
pthread_mutex_unlock( &m_ );
|
||||
}
|
||||
|
||||
void weak_release() // nothrow
|
||||
{
|
||||
pthread_mutex_lock( &m_ );
|
||||
long new_weak_count = --weak_count_;
|
||||
pthread_mutex_unlock( &m_ );
|
||||
|
||||
if( new_weak_count == 0 )
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
pthread_mutex_lock( &m_ );
|
||||
long r = use_count_;
|
||||
pthread_mutex_unlock( &m_ );
|
||||
|
||||
return r;
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_PT_HPP_INCLUDED
|
113
include/boost/detail/sp_counted_base_solaris.hpp
Normal file
113
include/boost/detail/sp_counted_base_solaris.hpp
Normal file
@@ -0,0 +1,113 @@
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED
|
||||
#define BOOST_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;
|
||||
|
||||
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_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED
|
131
include/boost/detail/sp_counted_base_spin.hpp
Normal file
131
include/boost/detail/sp_counted_base_spin.hpp
Normal file
@@ -0,0 +1,131 @@
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_SPIN_HPP_INCLUDED
|
||||
#define BOOST_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/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;
|
||||
|
||||
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_DETAIL_SP_COUNTED_BASE_SPIN_HPP_INCLUDED
|
155
include/boost/detail/sp_counted_base_sync.hpp
Normal file
155
include/boost/detail/sp_counted_base_sync.hpp
Normal file
@@ -0,0 +1,155 @@
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_SYNC_HPP_INCLUDED
|
||||
#define BOOST_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;
|
||||
|
||||
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_DETAIL_SP_COUNTED_BASE_SYNC_HPP_INCLUDED
|
130
include/boost/detail/sp_counted_base_w32.hpp
Normal file
130
include/boost/detail/sp_counted_base_w32.hpp
Normal file
@@ -0,0 +1,130 @@
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_BASE_W32_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_BASE_W32_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/sp_counted_base_w32.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)
|
||||
//
|
||||
//
|
||||
// Lock-free algorithm by Alexander Terekhov
|
||||
//
|
||||
// Thanks to Ben Hitchings for the #weak + (#shared != 0)
|
||||
// formulation
|
||||
//
|
||||
|
||||
#include <boost/detail/interlocked.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
#include <boost/detail/sp_typeinfo.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
sp_counted_base( sp_counted_base const & );
|
||||
sp_counted_base & operator= ( sp_counted_base const & );
|
||||
|
||||
long use_count_; // #shared
|
||||
long 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;
|
||||
|
||||
void add_ref_copy()
|
||||
{
|
||||
BOOST_INTERLOCKED_INCREMENT( &use_count_ );
|
||||
}
|
||||
|
||||
bool add_ref_lock() // true on success
|
||||
{
|
||||
for( ;; )
|
||||
{
|
||||
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
|
||||
}
|
||||
}
|
||||
|
||||
void release() // nothrow
|
||||
{
|
||||
if( BOOST_INTERLOCKED_DECREMENT( &use_count_ ) == 0 )
|
||||
{
|
||||
dispose();
|
||||
weak_release();
|
||||
}
|
||||
}
|
||||
|
||||
void weak_add_ref() // nothrow
|
||||
{
|
||||
BOOST_INTERLOCKED_INCREMENT( &weak_count_ );
|
||||
}
|
||||
|
||||
void weak_release() // nothrow
|
||||
{
|
||||
if( BOOST_INTERLOCKED_DECREMENT( &weak_count_ ) == 0 )
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
}
|
||||
|
||||
long use_count() const // nothrow
|
||||
{
|
||||
return static_cast<long const volatile &>( use_count_ );
|
||||
}
|
||||
};
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_W32_HPP_INCLUDED
|
231
include/boost/detail/sp_counted_impl.hpp
Normal file
231
include/boost/detail/sp_counted_impl.hpp
Normal file
@@ -0,0 +1,231 @@
|
||||
#ifndef BOOST_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// detail/sp_counted_impl.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)
|
||||
//
|
||||
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#if defined(BOOST_SP_USE_STD_ALLOCATOR) && defined(BOOST_SP_USE_QUICK_ALLOCATOR)
|
||||
# error BOOST_SP_USE_STD_ALLOCATOR and BOOST_SP_USE_QUICK_ALLOCATOR are incompatible.
|
||||
#endif
|
||||
|
||||
#include <boost/checked_delete.hpp>
|
||||
#include <boost/detail/sp_counted_base.hpp>
|
||||
|
||||
#if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
|
||||
#include <boost/detail/quick_allocator.hpp>
|
||||
#endif
|
||||
|
||||
#if defined(BOOST_SP_USE_STD_ALLOCATOR)
|
||||
#include <memory> // std::allocator
|
||||
#endif
|
||||
|
||||
#include <cstddef> // std::size_t
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
|
||||
void sp_scalar_constructor_hook( void * px, std::size_t size, void * pn );
|
||||
void sp_scalar_destructor_hook( void * px, std::size_t size, void * pn );
|
||||
|
||||
#endif
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
template<class X> class sp_counted_impl_p: public sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
X * px_;
|
||||
|
||||
sp_counted_impl_p( sp_counted_impl_p const & );
|
||||
sp_counted_impl_p & operator= ( sp_counted_impl_p const & );
|
||||
|
||||
typedef sp_counted_impl_p<X> this_type;
|
||||
|
||||
public:
|
||||
|
||||
explicit sp_counted_impl_p( X * px ): px_( px )
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
boost::sp_scalar_constructor_hook( px, sizeof(X), this );
|
||||
#endif
|
||||
}
|
||||
|
||||
virtual void dispose() // nothrow
|
||||
{
|
||||
#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS)
|
||||
boost::sp_scalar_destructor_hook( px_, sizeof(X), this );
|
||||
#endif
|
||||
boost::checked_delete( px_ );
|
||||
}
|
||||
|
||||
virtual void * get_deleter( detail::sp_typeinfo const & )
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
#if defined(BOOST_SP_USE_STD_ALLOCATOR)
|
||||
|
||||
void * operator new( std::size_t )
|
||||
{
|
||||
return std::allocator<this_type>().allocate( 1, static_cast<this_type *>(0) );
|
||||
}
|
||||
|
||||
void operator delete( void * p )
|
||||
{
|
||||
std::allocator<this_type>().deallocate( static_cast<this_type *>(p), 1 );
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
|
||||
|
||||
void * operator new( std::size_t )
|
||||
{
|
||||
return quick_allocator<this_type>::alloc();
|
||||
}
|
||||
|
||||
void operator delete( void * p )
|
||||
{
|
||||
quick_allocator<this_type>::dealloc( p );
|
||||
}
|
||||
|
||||
#endif
|
||||
};
|
||||
|
||||
//
|
||||
// Borland's Codeguard trips up over the -Vx- option here:
|
||||
//
|
||||
#ifdef __CODEGUARD__
|
||||
# pragma option push -Vx-
|
||||
#endif
|
||||
|
||||
template<class P, class D> class sp_counted_impl_pd: public sp_counted_base
|
||||
{
|
||||
private:
|
||||
|
||||
P ptr; // copy constructor must not throw
|
||||
D del; // copy constructor must not throw
|
||||
|
||||
sp_counted_impl_pd( sp_counted_impl_pd const & );
|
||||
sp_counted_impl_pd & operator= ( sp_counted_impl_pd const & );
|
||||
|
||||
typedef sp_counted_impl_pd<P, D> this_type;
|
||||
|
||||
public:
|
||||
|
||||
// pre: d(p) must not throw
|
||||
|
||||
sp_counted_impl_pd( P p, D d ): ptr(p), del(d)
|
||||
{
|
||||
}
|
||||
|
||||
virtual void dispose() // nothrow
|
||||
{
|
||||
del( ptr );
|
||||
}
|
||||
|
||||
virtual void * get_deleter( detail::sp_typeinfo const & ti )
|
||||
{
|
||||
return ti == BOOST_SP_TYPEID(D)? &reinterpret_cast<char&>( del ): 0;
|
||||
}
|
||||
|
||||
#if defined(BOOST_SP_USE_STD_ALLOCATOR)
|
||||
|
||||
void * operator new( std::size_t )
|
||||
{
|
||||
return std::allocator<this_type>().allocate( 1, static_cast<this_type *>(0) );
|
||||
}
|
||||
|
||||
void operator delete( void * p )
|
||||
{
|
||||
std::allocator<this_type>().deallocate( static_cast<this_type *>(p), 1 );
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#if defined(BOOST_SP_USE_QUICK_ALLOCATOR)
|
||||
|
||||
void * operator new( std::size_t )
|
||||
{
|
||||
return quick_allocator<this_type>::alloc();
|
||||
}
|
||||
|
||||
void operator delete( void * p )
|
||||
{
|
||||
quick_allocator<this_type>::dealloc( p );
|
||||
}
|
||||
|
||||
#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 )
|
||||
{
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
};
|
||||
|
||||
#ifdef __CODEGUARD__
|
||||
# pragma option pop
|
||||
#endif
|
||||
|
||||
} // namespace detail
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED
|
83
include/boost/detail/sp_typeinfo.hpp
Normal file
83
include/boost/detail/sp_typeinfo.hpp
Normal file
@@ -0,0 +1,83 @@
|
||||
#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 )
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
typedef void* sp_typeinfo;
|
||||
|
||||
template<class T> struct sp_typeid_
|
||||
{
|
||||
static char v_;
|
||||
};
|
||||
|
||||
template<class T> char sp_typeid_< T >::v_;
|
||||
|
||||
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>::v_)
|
||||
|
||||
#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
|
47
include/boost/detail/spinlock.hpp
Normal file
47
include/boost/detail/spinlock.hpp
Normal file
@@ -0,0 +1,47 @@
|
||||
#ifndef BOOST_DETAIL_SPINLOCK_HPP_INCLUDED
|
||||
#define BOOST_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>
|
||||
|
||||
#if defined(__GNUC__) && defined( __arm__ ) && !defined( __thumb__ )
|
||||
# include <boost/detail/spinlock_gcc_arm.hpp>
|
||||
#elif defined(__GNUC__) && ( __GNUC__ * 100 + __GNUC_MINOR__ >= 401 ) && !defined( __arm__ ) && !defined( __hppa ) && ( !defined( __INTEL_COMPILER ) || defined( __ia64__ ) )
|
||||
# include <boost/detail/spinlock_sync.hpp>
|
||||
#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__CYGWIN__)
|
||||
# include <boost/detail/spinlock_w32.hpp>
|
||||
#elif defined(BOOST_HAS_PTHREADS)
|
||||
# include <boost/detail/spinlock_pt.hpp>
|
||||
#elif !defined(BOOST_HAS_THREADS)
|
||||
# include <boost/detail/spinlock_nt.hpp>
|
||||
#else
|
||||
# error Unrecognized threading platform
|
||||
#endif
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SPINLOCK_HPP_INCLUDED
|
85
include/boost/detail/spinlock_gcc_arm.hpp
Normal file
85
include/boost/detail/spinlock_gcc_arm.hpp
Normal file
@@ -0,0 +1,85 @@
|
||||
#ifndef BOOST_DETAIL_SPINLOCK_GCC_ARM_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_SPINLOCK_GCC_ARM_HPP_INCLUDED
|
||||
|
||||
//
|
||||
// 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/yield_k.hpp>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
class spinlock
|
||||
{
|
||||
public:
|
||||
|
||||
int v_;
|
||||
|
||||
public:
|
||||
|
||||
bool try_lock()
|
||||
{
|
||||
int r;
|
||||
|
||||
__asm__ __volatile__(
|
||||
"swp %0, %1, [%2]":
|
||||
"=&r"( r ): // outputs
|
||||
"r"( 1 ), "r"( &v_ ): // inputs
|
||||
"memory", "cc" );
|
||||
|
||||
return r == 0;
|
||||
}
|
||||
|
||||
void lock()
|
||||
{
|
||||
for( unsigned k = 0; !try_lock(); ++k )
|
||||
{
|
||||
boost::detail::yield( k );
|
||||
}
|
||||
}
|
||||
|
||||
void unlock()
|
||||
{
|
||||
__asm__ __volatile__( "" ::: "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}
|
||||
|
||||
#endif // #ifndef BOOST_DETAIL_SPINLOCK_GCC_ARM_HPP_INCLUDED
|
89
include/boost/detail/spinlock_nt.hpp
Normal file
89
include/boost/detail/spinlock_nt.hpp
Normal file
@@ -0,0 +1,89 @@
|
||||
#ifndef BOOST_DETAIL_SPINLOCK_NT_HPP_INCLUDED
|
||||
#define BOOST_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_DETAIL_SPINLOCK_NT_HPP_INCLUDED
|
87
include/boost/detail/spinlock_pool.hpp
Normal file
87
include/boost/detail/spinlock_pool.hpp
Normal file
@@ -0,0 +1,87 @@
|
||||
#ifndef BOOST_DETAIL_SPINLOCK_POOL_HPP_INCLUDED
|
||||
#define BOOST_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/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 )
|
||||
{
|
||||
std::size_t i = reinterpret_cast< std::size_t >( pv ) % 41;
|
||||
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_DETAIL_SPINLOCK_POOL_HPP_INCLUDED
|
79
include/boost/detail/spinlock_pt.hpp
Normal file
79
include/boost/detail/spinlock_pt.hpp
Normal file
@@ -0,0 +1,79 @@
|
||||
#ifndef BOOST_DETAIL_SPINLOCK_PT_HPP_INCLUDED
|
||||
#define BOOST_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_DETAIL_SPINLOCK_PT_HPP_INCLUDED
|
87
include/boost/detail/spinlock_sync.hpp
Normal file
87
include/boost/detail/spinlock_sync.hpp
Normal file
@@ -0,0 +1,87 @@
|
||||
#ifndef BOOST_DETAIL_SPINLOCK_SYNC_HPP_INCLUDED
|
||||
#define BOOST_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/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_DETAIL_SPINLOCK_SYNC_HPP_INCLUDED
|
113
include/boost/detail/spinlock_w32.hpp
Normal file
113
include/boost/detail/spinlock_w32.hpp
Normal file
@@ -0,0 +1,113 @@
|
||||
#ifndef BOOST_DETAIL_SPINLOCK_W32_HPP_INCLUDED
|
||||
#define BOOST_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/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_DETAIL_SPINLOCK_W32_HPP_INCLUDED
|
149
include/boost/detail/yield_k.hpp
Normal file
149
include/boost/detail/yield_k.hpp
Normal file
@@ -0,0 +1,149 @@
|
||||
#ifndef BOOST_DETAIL_YIELD_K_HPP_INCLUDED
|
||||
#define BOOST_DETAIL_YIELD_K_HPP_INCLUDED
|
||||
|
||||
// MS compatible compilers support #pragma once
|
||||
|
||||
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
||||
# pragma once
|
||||
#endif
|
||||
|
||||
//
|
||||
// boost/detail/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 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_DETAIL_YIELD_K_HPP_INCLUDED
|
@@ -6,10 +6,9 @@
|
||||
//
|
||||
// Copyright (c) 2002 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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
|
||||
//
|
||||
@@ -24,6 +23,25 @@ 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()
|
||||
@@ -40,8 +58,14 @@ public:
|
||||
return p;
|
||||
}
|
||||
|
||||
// Note: No, you don't need to initialize _internal_weak_this
|
||||
//
|
||||
// Please read the documentation, not the code
|
||||
//
|
||||
// http://www.boost.org/libs/smart_ptr/enable_shared_from_this.html
|
||||
|
||||
typedef T _internal_element_type; // for bcc 5.5.1
|
||||
weak_ptr<_internal_element_type> _internal_weak_this;
|
||||
mutable weak_ptr<_internal_element_type> _internal_weak_this;
|
||||
};
|
||||
|
||||
} // namespace boost
|
||||
|
@@ -1,8 +1,7 @@
|
||||
// Copyright Peter Dimov and David Abrahams 2002. Permission to copy,
|
||||
// use, modify, sell and distribute this software is granted provided
|
||||
// this copyright notice appears in all copies of the source. This
|
||||
// software is provided "as is" without express or implied warranty,
|
||||
// and with no claim as to its suitability for any purpose.
|
||||
// Copyright Peter Dimov and David Abrahams 2002.
|
||||
// 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 GET_POINTER_DWA20021219_HPP
|
||||
# define GET_POINTER_DWA20021219_HPP
|
||||
|
||||
|
@@ -6,14 +6,15 @@
|
||||
//
|
||||
// Copyright (c) 2001, 2002 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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>
|
||||
|
||||
#ifdef BOOST_MSVC // moved here to work around VC++ compiler crash
|
||||
# pragma warning(push)
|
||||
# pragma warning(disable:4284) // odd return type for operator->
|
||||
@@ -21,9 +22,17 @@
|
||||
|
||||
#include <boost/assert.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
#include <boost/detail/sp_convertible.hpp>
|
||||
|
||||
#include <functional> // for std::less
|
||||
#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
|
||||
@@ -65,9 +74,19 @@ public:
|
||||
|
||||
#if !defined(BOOST_NO_MEMBER_TEMPLATES) || defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
||||
|
||||
template<class U> intrusive_ptr(intrusive_ptr<U> const & rhs): p_(rhs.get())
|
||||
template<class U>
|
||||
#if !defined( BOOST_SP_NO_SP_CONVERTIBLE )
|
||||
|
||||
intrusive_ptr( intrusive_ptr<U> const & rhs, typename detail::sp_enable_if_convertible<U,T>::type = detail::sp_empty() )
|
||||
|
||||
#else
|
||||
|
||||
intrusive_ptr( intrusive_ptr<U> const & rhs )
|
||||
|
||||
#endif
|
||||
: p_( rhs.get() )
|
||||
{
|
||||
if(p_ != 0) intrusive_ptr_add_ref(p_);
|
||||
if( p_ != 0 ) intrusive_ptr_add_ref( p_ );
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -104,6 +123,16 @@ public:
|
||||
return *this;
|
||||
}
|
||||
|
||||
void reset()
|
||||
{
|
||||
this_type().swap( *this );
|
||||
}
|
||||
|
||||
void reset( T * rhs )
|
||||
{
|
||||
this_type( rhs ).swap( *this );
|
||||
}
|
||||
|
||||
T * get() const
|
||||
{
|
||||
return p_;
|
||||
@@ -111,21 +140,42 @@ public:
|
||||
|
||||
T & operator*() const
|
||||
{
|
||||
BOOST_ASSERT( p_ != 0 );
|
||||
return *p_;
|
||||
}
|
||||
|
||||
T * operator->() const
|
||||
{
|
||||
BOOST_ASSERT( p_ != 0 );
|
||||
return p_;
|
||||
}
|
||||
|
||||
typedef T * (intrusive_ptr::*unspecified_bool_type) () const;
|
||||
#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: &intrusive_ptr::get;
|
||||
return p_ == 0? 0: &this_type::p_;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
// operator! is a Borland-specific workaround
|
||||
bool operator! () const
|
||||
{
|
||||
@@ -154,22 +204,22 @@ template<class T, class U> inline bool operator!=(intrusive_ptr<T> const & a, in
|
||||
return a.get() != b.get();
|
||||
}
|
||||
|
||||
template<class T> inline bool operator==(intrusive_ptr<T> const & a, T * b)
|
||||
template<class T, class U> inline bool operator==(intrusive_ptr<T> const & a, U * b)
|
||||
{
|
||||
return a.get() == b;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=(intrusive_ptr<T> const & a, T * b)
|
||||
template<class T, class U> inline bool operator!=(intrusive_ptr<T> const & a, U * b)
|
||||
{
|
||||
return a.get() != b;
|
||||
}
|
||||
|
||||
template<class T> inline bool operator==(T * a, intrusive_ptr<T> const & b)
|
||||
template<class T, class U> inline bool operator==(T * a, intrusive_ptr<U> const & b)
|
||||
{
|
||||
return a == b.get();
|
||||
}
|
||||
|
||||
template<class T> inline bool operator!=(T * a, intrusive_ptr<T> const & b)
|
||||
template<class T, class U> inline bool operator!=(T * a, intrusive_ptr<U> const & b)
|
||||
{
|
||||
return a != b.get();
|
||||
}
|
||||
@@ -207,6 +257,11 @@ template<class T, class U> intrusive_ptr<T> static_pointer_cast(intrusive_ptr<U>
|
||||
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());
|
||||
@@ -214,7 +269,9 @@ template<class T, class U> intrusive_ptr<T> dynamic_pointer_cast(intrusive_ptr<U
|
||||
|
||||
// operator<<
|
||||
|
||||
#if defined(__GNUC__) && (__GNUC__ < 3)
|
||||
#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)
|
||||
{
|
||||
@@ -224,7 +281,10 @@ template<class Y> std::ostream & operator<< (std::ostream & os, intrusive_ptr<Y>
|
||||
|
||||
#else
|
||||
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, <= 1200 && __SGI_STL_PORT)
|
||||
// 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)
|
||||
@@ -236,7 +296,11 @@ template<class E, class T, class Y> std::basic_ostream<E, T> & operator<< (std::
|
||||
return os;
|
||||
}
|
||||
|
||||
#endif
|
||||
#endif // _STLP_NO_IOSTREAMS
|
||||
|
||||
#endif // __GNUC__ < 3
|
||||
|
||||
#endif // !defined(BOOST_NO_IOSTREAM)
|
||||
|
||||
} // namespace boost
|
||||
|
||||
|
433
include/boost/make_shared.hpp
Normal file
433
include/boost/make_shared.hpp
Normal file
@@ -0,0 +1,433 @@
|
||||
#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/config.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
#include <boost/type_traits/type_with_alignment.hpp>
|
||||
#include <boost/type_traits/alignment_of.hpp>
|
||||
#include <cstddef>
|
||||
#include <new>
|
||||
|
||||
namespace boost
|
||||
{
|
||||
|
||||
namespace detail
|
||||
{
|
||||
|
||||
template< std::size_t N, std::size_t A > struct sp_aligned_storage
|
||||
{
|
||||
union type
|
||||
{
|
||||
char data_[ N ];
|
||||
typename boost::type_with_alignment< A >::type align_;
|
||||
};
|
||||
};
|
||||
|
||||
template< class T > class sp_ms_deleter
|
||||
{
|
||||
private:
|
||||
|
||||
typedef typename sp_aligned_storage< sizeof( T ), ::boost::alignment_of< T >::value >::type storage_type;
|
||||
|
||||
bool initialized_;
|
||||
storage_type storage_;
|
||||
|
||||
private:
|
||||
|
||||
void destroy()
|
||||
{
|
||||
if( initialized_ )
|
||||
{
|
||||
reinterpret_cast< T* >( storage_.data_ )->~T();
|
||||
initialized_ = false;
|
||||
}
|
||||
}
|
||||
|
||||
public:
|
||||
|
||||
sp_ms_deleter(): initialized_( false )
|
||||
{
|
||||
}
|
||||
|
||||
~sp_ms_deleter()
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
|
||||
void operator()( T * )
|
||||
{
|
||||
destroy();
|
||||
}
|
||||
|
||||
void * address()
|
||||
{
|
||||
return storage_.data_;
|
||||
}
|
||||
|
||||
void set_initialized()
|
||||
{
|
||||
initialized_ = true;
|
||||
}
|
||||
};
|
||||
|
||||
template< class T > T forward( T t )
|
||||
{
|
||||
return t;
|
||||
}
|
||||
|
||||
} // namespace detail
|
||||
|
||||
// Zero-argument versions
|
||||
//
|
||||
// Used even when variadic templates are available because of the new T() vs new T issue
|
||||
|
||||
template< class T > boost::shared_ptr< T > make_shared()
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >() );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T();
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A > boost::shared_ptr< T > allocate_shared( A const & a )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >(), a );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T();
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
#if defined( BOOST_HAS_VARIADIC_TMPL ) && defined( BOOST_HAS_RVALUE_REFS )
|
||||
|
||||
// Variadic templates, rvalue reference
|
||||
|
||||
template< class T, class... Args > boost::shared_ptr< T > make_shared( Args && ... args )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >() );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( detail::forward<Args>( args )... );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A, class... Args > boost::shared_ptr< T > allocate_shared( A const & a, Args && ... args )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >(), a );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( detail::forward<Args>( args )... );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
// C++03 version
|
||||
|
||||
template< class T, class A1 >
|
||||
boost::shared_ptr< T > make_shared( A1 const & a1 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >() );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A, class A1 >
|
||||
boost::shared_ptr< T > allocate_shared( A const & a, A1 const & a1 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >(), a );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A1, class A2 >
|
||||
boost::shared_ptr< T > make_shared( A1 const & a1, A2 const & a2 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >() );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A, class A1, class A2 >
|
||||
boost::shared_ptr< T > allocate_shared( A const & a, A1 const & a1, A2 const & a2 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >(), a );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A1, class A2, class A3 >
|
||||
boost::shared_ptr< T > make_shared( A1 const & a1, A2 const & a2, A3 const & a3 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >() );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A, class A1, class A2, class A3 >
|
||||
boost::shared_ptr< T > allocate_shared( A const & a, A1 const & a1, A2 const & a2, A3 const & a3 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >(), a );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A1, class A2, class A3, class A4 >
|
||||
boost::shared_ptr< T > make_shared( A1 const & a1, A2 const & a2, A3 const & a3, A4 const & a4 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >() );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3, a4 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A, class A1, class A2, class A3, class A4 >
|
||||
boost::shared_ptr< T > allocate_shared( A const & a, A1 const & a1, A2 const & a2, A3 const & a3, A4 const & a4 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >(), a );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3, a4 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A1, class A2, class A3, class A4, class A5 >
|
||||
boost::shared_ptr< T > make_shared( A1 const & a1, A2 const & a2, A3 const & a3, A4 const & a4, A5 const & a5 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >() );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3, a4, a5 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A, class A1, class A2, class A3, class A4, class A5 >
|
||||
boost::shared_ptr< T > allocate_shared( A const & a, A1 const & a1, A2 const & a2, A3 const & a3, A4 const & a4, A5 const & a5 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >(), a );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3, a4, a5 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A1, class A2, class A3, class A4, class A5, class A6 >
|
||||
boost::shared_ptr< T > make_shared( A1 const & a1, A2 const & a2, A3 const & a3, A4 const & a4, A5 const & a5, A6 const & a6 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >() );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3, a4, a5, a6 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A, class A1, class A2, class A3, class A4, class A5, class A6 >
|
||||
boost::shared_ptr< T > allocate_shared( A const & a, A1 const & a1, A2 const & a2, A3 const & a3, A4 const & a4, A5 const & a5, A6 const & a6 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >(), a );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3, a4, a5, a6 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7 >
|
||||
boost::shared_ptr< T > make_shared( A1 const & a1, A2 const & a2, A3 const & a3, A4 const & a4, A5 const & a5, A6 const & a6, A7 const & a7 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >() );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3, a4, a5, a6, a7 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A, class A1, class A2, class A3, class A4, class A5, class A6, class A7 >
|
||||
boost::shared_ptr< T > allocate_shared( A const & a, A1 const & a1, A2 const & a2, A3 const & a3, A4 const & a4, A5 const & a5, A6 const & a6, A7 const & a7 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >(), a );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3, a4, a5, a6, a7 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8 >
|
||||
boost::shared_ptr< T > make_shared( A1 const & a1, A2 const & a2, A3 const & a3, A4 const & a4, A5 const & a5, A6 const & a6, A7 const & a7, A8 const & a8 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >() );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3, a4, a5, a6, a7, a8 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8 >
|
||||
boost::shared_ptr< T > allocate_shared( A const & a, A1 const & a1, A2 const & a2, A3 const & a3, A4 const & a4, A5 const & a5, A6 const & a6, A7 const & a7, A8 const & a8 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >(), a );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3, a4, a5, a6, a7, a8 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9 >
|
||||
boost::shared_ptr< T > make_shared( A1 const & a1, A2 const & a2, A3 const & a3, A4 const & a4, A5 const & a5, A6 const & a6, A7 const & a7, A8 const & a8, A9 const & a9 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >() );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3, a4, a5, a6, a7, a8, a9 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
template< class T, class A, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9 >
|
||||
boost::shared_ptr< T > allocate_shared( A const & a, A1 const & a1, A2 const & a2, A3 const & a3, A4 const & a4, A5 const & a5, A6 const & a6, A7 const & a7, A8 const & a8, A9 const & a9 )
|
||||
{
|
||||
boost::shared_ptr< T > pt( static_cast< T* >( 0 ), detail::sp_ms_deleter< T >(), a );
|
||||
|
||||
detail::sp_ms_deleter< T > * pd = boost::get_deleter< detail::sp_ms_deleter< T > >( pt );
|
||||
|
||||
void * pv = pd->address();
|
||||
|
||||
new( pv ) T( a1, a2, a3, a4, a5, a6, a7, a8, a9 );
|
||||
pd->set_initialized();
|
||||
|
||||
return boost::shared_ptr< T >( pt, static_cast< T* >( pv ) );
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_MAKE_SHARED_HPP_INCLUDED
|
35
include/boost/memory_order.hpp
Normal file
35
include/boost/memory_order.hpp
Normal file
@@ -0,0 +1,35 @@
|
||||
#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 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 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
|
||||
};
|
||||
|
||||
} // namespace boost
|
||||
|
||||
#endif // #ifndef BOOST_MEMORY_ORDER_HPP_INCLUDED
|
45
include/boost/pointer_cast.hpp
Normal file
45
include/boost/pointer_cast.hpp
Normal file
@@ -0,0 +1,45 @@
|
||||
//////////////////////////////////////////////////////////////////////////////
|
||||
//
|
||||
// (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
|
55
include/boost/pointer_to_other.hpp
Normal file
55
include/boost/pointer_to_other.hpp
Normal file
@@ -0,0 +1,55 @@
|
||||
#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
|
@@ -4,10 +4,9 @@
|
||||
// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
|
||||
// Copyright (c) 2001, 2002 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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
|
||||
//
|
||||
@@ -15,6 +14,9 @@
|
||||
#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
|
||||
@@ -44,6 +46,9 @@ private:
|
||||
|
||||
typedef scoped_array<T> this_type;
|
||||
|
||||
void operator==( scoped_array const& ) const;
|
||||
void operator!=( scoped_array const& ) const;
|
||||
|
||||
public:
|
||||
|
||||
typedef T element_type;
|
||||
@@ -83,13 +88,32 @@ public:
|
||||
|
||||
// implicit conversion to "bool"
|
||||
|
||||
typedef T * (this_type::*unspecified_bool_type)() const;
|
||||
#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;
|
||||
|
@@ -4,16 +4,16 @@
|
||||
// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
|
||||
// Copyright (c) 2001, 2002 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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/assert.hpp>
|
||||
#include <boost/checked_delete.hpp>
|
||||
#include <boost/detail/workaround.hpp>
|
||||
|
||||
#ifndef BOOST_NO_AUTO_PTR
|
||||
# include <memory> // for std::auto_ptr
|
||||
@@ -47,6 +47,9 @@ private:
|
||||
|
||||
typedef scoped_ptr<T> this_type;
|
||||
|
||||
void operator==( scoped_ptr const& ) const;
|
||||
void operator!=( scoped_ptr const& ) const;
|
||||
|
||||
public:
|
||||
|
||||
typedef T element_type;
|
||||
@@ -102,13 +105,31 @@ public:
|
||||
|
||||
// implicit conversion to "bool"
|
||||
|
||||
typedef T * (this_type::*unspecified_bool_type)() const;
|
||||
#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;
|
||||
|
@@ -7,10 +7,9 @@
|
||||
// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
|
||||
// Copyright (c) 2001, 2002 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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.
|
||||
//
|
||||
@@ -21,10 +20,13 @@
|
||||
#include <boost/detail/shared_array_nmt.hpp>
|
||||
#else
|
||||
|
||||
#include <memory> // TR1 cyclic inclusion fix
|
||||
|
||||
#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
|
||||
@@ -94,13 +96,48 @@ public:
|
||||
|
||||
// implicit conversion to "bool"
|
||||
|
||||
typedef T * (this_type::*unspecified_bool_type)() const;
|
||||
#if defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x530)
|
||||
|
||||
operator bool () const
|
||||
{
|
||||
return px != 0;
|
||||
}
|
||||
|
||||
#elif defined( _MANAGED )
|
||||
|
||||
static void unspecified_bool( this_type*** )
|
||||
{
|
||||
}
|
||||
|
||||
typedef void (*unspecified_bool_type)( this_type*** );
|
||||
|
||||
operator unspecified_bool_type() const // never throws
|
||||
{
|
||||
return px == 0? 0: unspecified_bool;
|
||||
}
|
||||
|
||||
#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
|
||||
|
||||
bool operator! () const // never throws
|
||||
{
|
||||
return px == 0;
|
||||
|
@@ -5,12 +5,11 @@
|
||||
// shared_ptr.hpp
|
||||
//
|
||||
// (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov
|
||||
// Copyright (c) 2001-2008 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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_ptr.htm for documentation.
|
||||
//
|
||||
@@ -21,17 +20,35 @@
|
||||
#include <boost/detail/shared_ptr_nmt.hpp>
|
||||
#else
|
||||
|
||||
// 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 <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 <boost/detail/sp_convertible.hpp>
|
||||
|
||||
#if !defined(BOOST_SP_NO_ATOMIC_ACCESS)
|
||||
#include <boost/detail/spinlock_pool.hpp>
|
||||
#include <boost/memory_order.hpp>
|
||||
#endif
|
||||
|
||||
#include <memory> // for std::auto_ptr
|
||||
#include <algorithm> // for std::swap
|
||||
#include <functional> // for std::less
|
||||
#include <typeinfo> // for std::bad_cast
|
||||
|
||||
#if !defined(BOOST_NO_IOSTREAM)
|
||||
#if !defined(BOOST_NO_IOSFWD)
|
||||
#include <iosfwd> // for std::basic_ostream
|
||||
#else
|
||||
#include <ostream>
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#ifdef BOOST_MSVC // moved here to work around VC++ compiler crash
|
||||
# pragma warning(push)
|
||||
@@ -48,6 +65,7 @@ namespace detail
|
||||
{
|
||||
|
||||
struct static_cast_tag {};
|
||||
struct const_cast_tag {};
|
||||
struct dynamic_cast_tag {};
|
||||
struct polymorphic_cast_tag {};
|
||||
|
||||
@@ -68,19 +86,70 @@ 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(boost::enable_shared_from_this<T> * pe, Y * px, shared_count const & pn)
|
||||
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(px, pn);
|
||||
if(pe != 0) pe->_internal_weak_this._internal_assign(const_cast<Y*>(px), pn);
|
||||
}
|
||||
|
||||
inline void sp_enable_shared_from_this(void const *, void const *, shared_count const &)
|
||||
#ifdef _MANAGED
|
||||
|
||||
// Avoid C4793, ... causes native code generation
|
||||
|
||||
struct sp_any_pointer
|
||||
{
|
||||
template<class T> sp_any_pointer( T* ) {}
|
||||
};
|
||||
|
||||
inline void sp_enable_shared_from_this( shared_count const & /*pn*/, sp_any_pointer, sp_any_pointer )
|
||||
{
|
||||
}
|
||||
|
||||
#else // _MANAGED
|
||||
|
||||
#ifdef sgi
|
||||
// Turn off: the last argument of the varargs function "sp_enable_shared_from_this" is unnamed
|
||||
# pragma set woff 3506
|
||||
#endif
|
||||
|
||||
inline void sp_enable_shared_from_this( shared_count const & /*pn*/, ... )
|
||||
{
|
||||
}
|
||||
|
||||
#ifdef sgi
|
||||
# pragma reset woff 3506
|
||||
#endif
|
||||
|
||||
#endif // _MANAGED
|
||||
|
||||
#if !defined( BOOST_NO_SFINAE ) && !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION ) && !defined( BOOST_NO_AUTO_PTR )
|
||||
|
||||
// rvalue auto_ptr support based on a technique by Dave Abrahams
|
||||
|
||||
template< class T, class R > struct sp_enable_if_auto_ptr
|
||||
{
|
||||
};
|
||||
|
||||
template< class T, class R > struct sp_enable_if_auto_ptr< std::auto_ptr< T >, R >
|
||||
{
|
||||
typedef R type;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
||||
} // namespace detail
|
||||
|
||||
|
||||
@@ -104,16 +173,16 @@ public:
|
||||
typedef T element_type;
|
||||
typedef T value_type;
|
||||
typedef T * pointer;
|
||||
typedef typename detail::shared_ptr_traits<T>::reference reference;
|
||||
typedef typename boost::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, checked_deleter<Y>()) // Y must be complete
|
||||
explicit shared_ptr( Y * p ): px( p ), pn( p ) // Y must be complete
|
||||
{
|
||||
detail::sp_enable_shared_from_this(p, p, pn);
|
||||
boost::detail::sp_enable_shared_from_this( pn, p, p );
|
||||
}
|
||||
|
||||
//
|
||||
@@ -124,7 +193,14 @@ public:
|
||||
|
||||
template<class Y, class D> shared_ptr(Y * p, D d): px(p), pn(p, d)
|
||||
{
|
||||
detail::sp_enable_shared_from_this(p, p, pn);
|
||||
boost::detail::sp_enable_shared_from_this( pn, p, p );
|
||||
}
|
||||
|
||||
// As above, but with allocator. A's copy constructor shall not throw.
|
||||
|
||||
template<class Y, class D, class A> shared_ptr( Y * p, D d, A a ): px( p ), pn( p, d, a )
|
||||
{
|
||||
boost::detail::sp_enable_shared_from_this( pn, p, p );
|
||||
}
|
||||
|
||||
// generated copy constructor, assignment, destructor are fine...
|
||||
@@ -149,26 +225,55 @@ public:
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
shared_ptr(shared_ptr<Y> const & r): px(r.px), pn(r.pn) // never throws
|
||||
shared_ptr( weak_ptr<Y> const & r, boost::detail::sp_nothrow_tag ): px( 0 ), pn( r.pn, boost::detail::sp_nothrow_tag() ) // 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::dynamic_cast_tag): px(dynamic_cast<element_type *>(r.px)), pn(r.pn)
|
||||
{
|
||||
if(px == 0) // need to allocate new counter -- the cast failed
|
||||
if( !pn.empty() )
|
||||
{
|
||||
pn = detail::shared_count();
|
||||
px = r.px;
|
||||
}
|
||||
}
|
||||
|
||||
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 !defined( BOOST_SP_NO_SP_CONVERTIBLE )
|
||||
|
||||
shared_ptr( shared_ptr<Y> const & r, typename detail::sp_enable_if_convertible<Y,T>::type = detail::sp_empty() )
|
||||
|
||||
#else
|
||||
|
||||
shared_ptr( shared_ptr<Y> const & r )
|
||||
|
||||
#endif
|
||||
: px( r.px ), pn( r.pn ) // never throws
|
||||
{
|
||||
}
|
||||
|
||||
// aliasing
|
||||
template< class Y >
|
||||
shared_ptr( shared_ptr<Y> const & r, T * p ): px( p ), pn( r.pn ) // never throws
|
||||
{
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
shared_ptr(shared_ptr<Y> const & r, boost::detail::static_cast_tag): px(static_cast<element_type *>(r.px)), pn(r.pn)
|
||||
{
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
shared_ptr(shared_ptr<Y> const & r, boost::detail::const_cast_tag): px(const_cast<element_type *>(r.px)), pn(r.pn)
|
||||
{
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
shared_ptr(shared_ptr<Y> const & r, boost::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 = boost::detail::shared_count();
|
||||
}
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
shared_ptr(shared_ptr<Y> const & r, boost::detail::polymorphic_cast_tag): px(dynamic_cast<element_type *>(r.px)), pn(r.pn)
|
||||
{
|
||||
if(px == 0)
|
||||
{
|
||||
@@ -182,13 +287,26 @@ public:
|
||||
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(tmp, tmp, pn);
|
||||
pn = boost::detail::shared_count(r);
|
||||
boost::detail::sp_enable_shared_from_this( pn, tmp, tmp );
|
||||
}
|
||||
|
||||
#endif
|
||||
#if !defined( BOOST_NO_SFINAE ) && !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION )
|
||||
|
||||
#if !defined(BOOST_MSVC) || (BOOST_MSVC > 1200)
|
||||
template<class Ap>
|
||||
shared_ptr( Ap r, typename boost::detail::sp_enable_if_auto_ptr<Ap, int>::type = 0 ): px( r.get() ), pn()
|
||||
{
|
||||
typename Ap::element_type * tmp = r.get();
|
||||
pn = boost::detail::shared_count( r );
|
||||
boost::detail::sp_enable_shared_from_this( pn, tmp, tmp );
|
||||
}
|
||||
|
||||
|
||||
#endif // BOOST_NO_SFINAE, BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
|
||||
|
||||
#endif // BOOST_NO_AUTO_PTR
|
||||
|
||||
#if !defined(BOOST_MSVC) || (BOOST_MSVC >= 1300)
|
||||
|
||||
template<class Y>
|
||||
shared_ptr & operator=(shared_ptr<Y> const & r) // never throws
|
||||
@@ -203,12 +321,65 @@ public:
|
||||
#ifndef BOOST_NO_AUTO_PTR
|
||||
|
||||
template<class Y>
|
||||
shared_ptr & operator=(std::auto_ptr<Y> & r)
|
||||
shared_ptr & operator=( std::auto_ptr<Y> & r )
|
||||
{
|
||||
this_type(r).swap(*this);
|
||||
return *this;
|
||||
}
|
||||
|
||||
#if !defined( BOOST_NO_SFINAE ) && !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION )
|
||||
|
||||
template<class Ap>
|
||||
typename boost::detail::sp_enable_if_auto_ptr< Ap, shared_ptr & >::type operator=( Ap r )
|
||||
{
|
||||
this_type( r ).swap( *this );
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
#endif // BOOST_NO_SFINAE, BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
|
||||
|
||||
#endif // BOOST_NO_AUTO_PTR
|
||||
|
||||
// Move support
|
||||
|
||||
#if defined( BOOST_HAS_RVALUE_REFS )
|
||||
|
||||
shared_ptr( shared_ptr && r ): px( r.px ), pn() // never throws
|
||||
{
|
||||
pn.swap( r.pn );
|
||||
r.px = 0;
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
#if !defined( BOOST_SP_NO_SP_CONVERTIBLE )
|
||||
|
||||
shared_ptr( shared_ptr<Y> && r, typename detail::sp_enable_if_convertible<Y,T>::type = detail::sp_empty() )
|
||||
|
||||
#else
|
||||
|
||||
shared_ptr( shared_ptr<Y> && r )
|
||||
|
||||
#endif
|
||||
: px( r.px ), pn() // never throws
|
||||
{
|
||||
pn.swap( r.pn );
|
||||
r.px = 0;
|
||||
}
|
||||
|
||||
shared_ptr & operator=( shared_ptr && r ) // never throws
|
||||
{
|
||||
this_type( static_cast< shared_ptr && >( r ) ).swap( *this );
|
||||
return *this;
|
||||
}
|
||||
|
||||
template<class Y>
|
||||
shared_ptr & operator=( shared_ptr<Y> && r ) // never throws
|
||||
{
|
||||
this_type( static_cast< shared_ptr<Y> && >( r ) ).swap( *this );
|
||||
return *this;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
void reset() // never throws in 1.30+
|
||||
@@ -222,9 +393,19 @@ public:
|
||||
this_type(p).swap(*this);
|
||||
}
|
||||
|
||||
template<class Y, class D> void reset(Y * p, D d)
|
||||
template<class Y, class D> void reset( Y * p, D d )
|
||||
{
|
||||
this_type(p, d).swap(*this);
|
||||
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_ptr<Y> const & r, T * p )
|
||||
{
|
||||
this_type( r, p ).swap( *this );
|
||||
}
|
||||
|
||||
reference operator* () const // never throws
|
||||
@@ -238,7 +419,7 @@ public:
|
||||
BOOST_ASSERT(px != 0);
|
||||
return px;
|
||||
}
|
||||
|
||||
|
||||
T * get() const // never throws
|
||||
{
|
||||
return px;
|
||||
@@ -246,6 +427,31 @@ public:
|
||||
|
||||
// implicit conversion to "bool"
|
||||
|
||||
#if ( defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, < 0x570) ) || defined(__CINT__)
|
||||
|
||||
operator bool () const
|
||||
{
|
||||
return px != 0;
|
||||
}
|
||||
|
||||
#elif defined( _MANAGED )
|
||||
|
||||
static void unspecified_bool( this_type*** )
|
||||
{
|
||||
}
|
||||
|
||||
typedef void (*unspecified_bool_type)( this_type*** );
|
||||
|
||||
operator unspecified_bool_type() const // never throws
|
||||
{
|
||||
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 T * (this_type::*unspecified_bool_type)() const;
|
||||
|
||||
operator unspecified_bool_type() const // never throws
|
||||
@@ -253,6 +459,17 @@ public:
|
||||
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
|
||||
@@ -281,9 +498,14 @@ public:
|
||||
return pn < rhs.pn;
|
||||
}
|
||||
|
||||
void * _internal_get_deleter(std::type_info const & ti) const
|
||||
void * _internal_get_deleter( detail::sp_typeinfo const & ti ) const
|
||||
{
|
||||
return pn.get_deleter(ti);
|
||||
return pn.get_deleter( ti );
|
||||
}
|
||||
|
||||
bool _internal_equiv( shared_ptr const & r ) const
|
||||
{
|
||||
return px == r.px && pn == r.pn;
|
||||
}
|
||||
|
||||
// Tasteless as this may seem, making all members public allows member templates
|
||||
@@ -300,7 +522,7 @@ private:
|
||||
#endif
|
||||
|
||||
T * px; // contained pointer
|
||||
detail::shared_count pn; // reference counter
|
||||
boost::detail::shared_count pn; // reference counter
|
||||
|
||||
}; // shared_ptr
|
||||
|
||||
@@ -337,29 +559,34 @@ template<class T> inline void swap(shared_ptr<T> & a, shared_ptr<T> & 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());
|
||||
return shared_ptr<T>(r, boost::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, boost::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());
|
||||
return shared_ptr<T>(r, boost::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());
|
||||
return shared_ptr<T>(r, boost::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());
|
||||
return shared_ptr<T>(r, boost::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());
|
||||
return shared_ptr<T>(r, boost::detail::polymorphic_cast_tag());
|
||||
}
|
||||
|
||||
template<class T, class U> shared_ptr<T> shared_polymorphic_downcast(shared_ptr<U> const & r)
|
||||
@@ -377,7 +604,9 @@ template<class T> inline T * get_pointer(shared_ptr<T> const & p)
|
||||
|
||||
// operator<<
|
||||
|
||||
#if defined(__GNUC__) && (__GNUC__ < 3)
|
||||
#if !defined(BOOST_NO_IOSTREAM)
|
||||
|
||||
#if defined(BOOST_NO_TEMPLATED_IOSTREAMS) || ( defined(__GNUC__) && (__GNUC__ < 3) )
|
||||
|
||||
template<class Y> std::ostream & operator<< (std::ostream & os, shared_ptr<Y> const & p)
|
||||
{
|
||||
@@ -387,29 +616,39 @@ template<class Y> std::ostream & operator<< (std::ostream & os, shared_ptr<Y> co
|
||||
|
||||
#else
|
||||
|
||||
# if BOOST_WORKAROUND(BOOST_MSVC, <= 1200 && __SGI_STL_PORT)
|
||||
// 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, 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
|
||||
# endif
|
||||
{
|
||||
os << p.get();
|
||||
return os;
|
||||
}
|
||||
|
||||
#endif
|
||||
#endif // _STLP_NO_IOSTREAMS
|
||||
|
||||
// get_deleter (experimental)
|
||||
#endif // __GNUC__ < 3
|
||||
|
||||
#if defined(__GNUC__) && (__GNUC__ < 3)
|
||||
#endif // !defined(BOOST_NO_IOSTREAM)
|
||||
|
||||
// get_deleter
|
||||
|
||||
#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));
|
||||
void const * q = p._internal_get_deleter(BOOST_SP_TYPEID(D));
|
||||
return const_cast<D *>(static_cast<D const *>(q));
|
||||
}
|
||||
|
||||
@@ -417,7 +656,86 @@ template<class D, class T> D * get_deleter(shared_ptr<T> const & p)
|
||||
|
||||
template<class D, class T> D * get_deleter(shared_ptr<T> const & p)
|
||||
{
|
||||
return static_cast<D *>(p._internal_get_deleter(typeid(D)));
|
||||
return static_cast<D *>(p._internal_get_deleter(BOOST_SP_TYPEID(D)));
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
// atomic access
|
||||
|
||||
#if !defined(BOOST_SP_NO_ATOMIC_ACCESS)
|
||||
|
||||
template<class T> inline bool atomic_is_lock_free( shared_ptr<T> const * /*p*/ )
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
template<class T> shared_ptr<T> atomic_load( shared_ptr<T> const * p )
|
||||
{
|
||||
boost::detail::spinlock_pool<2>::scoped_lock lock( p );
|
||||
return *p;
|
||||
}
|
||||
|
||||
template<class T> inline shared_ptr<T> atomic_load_explicit( shared_ptr<T> const * p, memory_order /*mo*/ )
|
||||
{
|
||||
return atomic_load( p );
|
||||
}
|
||||
|
||||
template<class T> void atomic_store( shared_ptr<T> * p, shared_ptr<T> r )
|
||||
{
|
||||
boost::detail::spinlock_pool<2>::scoped_lock lock( p );
|
||||
p->swap( r );
|
||||
}
|
||||
|
||||
template<class T> inline void atomic_store_explicit( shared_ptr<T> * p, shared_ptr<T> r, memory_order /*mo*/ )
|
||||
{
|
||||
atomic_store( p, r ); // std::move( r )
|
||||
}
|
||||
|
||||
template<class T> shared_ptr<T> atomic_exchange( shared_ptr<T> * p, shared_ptr<T> r )
|
||||
{
|
||||
boost::detail::spinlock & sp = boost::detail::spinlock_pool<2>::spinlock_for( p );
|
||||
|
||||
sp.lock();
|
||||
p->swap( r );
|
||||
sp.unlock();
|
||||
|
||||
return r; // return std::move( r )
|
||||
}
|
||||
|
||||
template<class T> shared_ptr<T> atomic_exchange_explicit( shared_ptr<T> * p, shared_ptr<T> r, memory_order /*mo*/ )
|
||||
{
|
||||
return atomic_exchange( p, r ); // std::move( r )
|
||||
}
|
||||
|
||||
template<class T> bool atomic_compare_exchange( shared_ptr<T> * p, shared_ptr<T> * v, shared_ptr<T> w )
|
||||
{
|
||||
boost::detail::spinlock & sp = boost::detail::spinlock_pool<2>::spinlock_for( p );
|
||||
|
||||
sp.lock();
|
||||
|
||||
if( p->_internal_equiv( *v ) )
|
||||
{
|
||||
p->swap( w );
|
||||
|
||||
sp.unlock();
|
||||
|
||||
return true;
|
||||
}
|
||||
else
|
||||
{
|
||||
shared_ptr<T> tmp( *p );
|
||||
|
||||
sp.unlock();
|
||||
|
||||
tmp.swap( *v );
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
template<class T> inline bool atomic_compare_exchange_explicit( shared_ptr<T> * p, shared_ptr<T> * v, shared_ptr<T> w, memory_order /*success*/, memory_order /*failure*/ )
|
||||
{
|
||||
return atomic_compare_exchange( p, v, w ); // std::move( w )
|
||||
}
|
||||
|
||||
#endif
|
||||
@@ -426,7 +744,7 @@ template<class D, class T> D * get_deleter(shared_ptr<T> const & p)
|
||||
|
||||
#ifdef BOOST_MSVC
|
||||
# pragma warning(pop)
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#endif // #if defined(BOOST_NO_MEMBER_TEMPLATES) && !defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
||||
|
||||
|
@@ -1,20 +1,25 @@
|
||||
//
|
||||
// smart_ptr.hpp
|
||||
//
|
||||
// For compatibility, this header includes the headers for the four "classic"
|
||||
// smart pointer class templates.
|
||||
// For convenience, this header includes the rest of the smart
|
||||
// pointer library headers.
|
||||
//
|
||||
// Copyright (c) 1998-2002 boost.org
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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)
|
||||
//
|
||||
// http://www.boost.org/libs/smart_ptr/smart_ptr.htm
|
||||
//
|
||||
|
||||
#include <boost/scoped_ptr.hpp>
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#include <boost/scoped_ptr.hpp>
|
||||
#include <boost/scoped_array.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
#include <boost/shared_array.hpp>
|
||||
|
||||
#if !defined(BOOST_NO_MEMBER_TEMPLATES) || defined(BOOST_MSVC6_MEMBER_TEMPLATES)
|
||||
# include <boost/weak_ptr.hpp>
|
||||
# include <boost/intrusive_ptr.hpp>
|
||||
# include <boost/enable_shared_from_this.hpp>
|
||||
#endif
|
||||
|
@@ -6,14 +6,15 @@
|
||||
//
|
||||
// Copyright (c) 2001, 2002, 2003 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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/detail/shared_count.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
|
||||
#ifdef BOOST_MSVC // moved here to work around VC++ compiler crash
|
||||
@@ -60,17 +61,35 @@ public:
|
||||
//
|
||||
|
||||
template<class Y>
|
||||
weak_ptr(weak_ptr<Y> const & r): pn(r.pn) // never throws
|
||||
#if !defined( BOOST_SP_NO_SP_CONVERTIBLE )
|
||||
|
||||
weak_ptr( weak_ptr<Y> const & r, typename detail::sp_enable_if_convertible<Y,T>::type = detail::sp_empty() )
|
||||
|
||||
#else
|
||||
|
||||
weak_ptr( weak_ptr<Y> const & r )
|
||||
|
||||
#endif
|
||||
: 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_SP_NO_SP_CONVERTIBLE )
|
||||
|
||||
weak_ptr( shared_ptr<Y> const & r, typename detail::sp_enable_if_convertible<Y,T>::type = detail::sp_empty() )
|
||||
|
||||
#else
|
||||
|
||||
weak_ptr( shared_ptr<Y> const & r )
|
||||
|
||||
#endif
|
||||
: px( r.px ), pn( r.pn ) // never throws
|
||||
{
|
||||
}
|
||||
|
||||
#if !defined(BOOST_MSVC) || (BOOST_MSVC > 1200)
|
||||
#if !defined(BOOST_MSVC) || (BOOST_MSVC >= 1300)
|
||||
|
||||
template<class Y>
|
||||
weak_ptr & operator=(weak_ptr<Y> const & r) // never throws
|
||||
@@ -92,31 +111,7 @@ public:
|
||||
|
||||
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
|
||||
return shared_ptr<element_type>( *this, boost::detail::sp_nothrow_tag() );
|
||||
}
|
||||
|
||||
long use_count() const // never throws
|
||||
@@ -140,7 +135,7 @@ public:
|
||||
pn.swap(other.pn);
|
||||
}
|
||||
|
||||
void _internal_assign(T * px2, detail::shared_count const & pn2)
|
||||
void _internal_assign(T * px2, boost::detail::shared_count const & pn2)
|
||||
{
|
||||
px = px2;
|
||||
pn = pn2;
|
||||
@@ -163,8 +158,8 @@ private:
|
||||
|
||||
#endif
|
||||
|
||||
T * px; // contained pointer
|
||||
detail::weak_count pn; // reference counter
|
||||
T * px; // contained pointer
|
||||
boost::detail::weak_count pn; // reference counter
|
||||
|
||||
}; // weak_ptr
|
||||
|
||||
@@ -178,12 +173,6 @@ 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
|
||||
|
51
index.htm
51
index.htm
@@ -1,51 +0,0 @@
|
||||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
<title>Boost Smart Pointer Library</title>
|
||||
</head>
|
||||
<body bgcolor="#FFFFFF" text="#000000">
|
||||
<table border="1" bgcolor="#007F7F" cellpadding="2">
|
||||
<tr>
|
||||
<td bgcolor="#FFFFFF"><img src="../../c++boost.gif" alt="c++boost.gif (8819 bytes)" width="277" height="86"></td>
|
||||
<td><a href="../../index.htm"><font face="Arial" color="#FFFFFF"><big>Home</big></font></a></td>
|
||||
<td><a href="../libraries.htm"><font face="Arial" color="#FFFFFF"><big>Libraries</big></font></a></td>
|
||||
<td><a href="../../people/people.htm"><font face="Arial" color="#FFFFFF"><big>People</big></font></a></td>
|
||||
<td><a href="../../more/faq.htm"><font face="Arial" color="#FFFFFF"><big>FAQ</big></font></a></td>
|
||||
<td><a href="../../more/index.htm"><font face="Arial" color="#FFFFFF"><big>More</big></font></a></td>
|
||||
</tr>
|
||||
</table>
|
||||
<h1>Smart Pointer Library</h1>
|
||||
<p>The smart pointer library includes five smart pointer class templates. Smart
|
||||
pointers ease the management of memory dynamically allocated with C++ <b>new</b>
|
||||
expressions. In addition, <b>scoped_ptr</b> can ease the management of memory
|
||||
dynamically allocated in other ways.</p>
|
||||
<ul>
|
||||
<li>
|
||||
<a href="smart_ptr.htm">Documentation</a> (HTML).</li>
|
||||
<li>
|
||||
Header <a href="../../boost/scoped_ptr.hpp">scoped_ptr.hpp</a>.</li>
|
||||
<li>
|
||||
Header <a href="../../boost/scoped_array.hpp">scoped_array.hpp</a>.</li>
|
||||
<li>
|
||||
Header <a href="../../boost/shared_ptr.hpp">shared_ptr.hpp</a>.</li>
|
||||
<li>
|
||||
Header <a href="../../boost/shared_array.hpp">shared_array.hpp</a>.</li>
|
||||
<li>
|
||||
Header <a href="../../boost/weak_ptr.hpp">weak_ptr.hpp</a>.</li>
|
||||
<li>
|
||||
Header <a href="../../boost/enable_shared_from_this.hpp">enable_shared_from_this.hpp</a>.</li>
|
||||
<li>
|
||||
Header <a href="../../boost/intrusive_ptr.hpp">intrusive_ptr.hpp</a>.</li>
|
||||
<li>
|
||||
Test program <a href="test/smart_ptr_test.cpp">smart_ptr_test.cpp</a>.</li>
|
||||
<li>
|
||||
Originally submitted by <a href="../../people/greg_colvin.htm">Greg Colvin</a> and
|
||||
<a href="../../people/beman_dawes.html">Beman Dawes</a>, currently maintained
|
||||
by <a href="../../people/peter_dimov.htm">Peter Dimov</a> and <a href="../../people/darin_adler.htm">
|
||||
Darin Adler</a>.</li>
|
||||
</ul>
|
||||
<hr>
|
||||
<p>$Date$</p>
|
||||
</body>
|
||||
</html>
|
15
index.html
Normal file
15
index.html
Normal file
@@ -0,0 +1,15 @@
|
||||
<html>
|
||||
<head>
|
||||
<meta http-equiv="refresh" content="0; URL=smart_ptr.htm">
|
||||
</head>
|
||||
<body>
|
||||
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><IMG height="86" alt="c++boost.gif (8819 bytes)" src="../../c++boost.gif" width="277" align="middle">intrusive_ptr
|
||||
class template</h1>
|
||||
<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>
|
||||
<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;</LI>
|
||||
Some existing frameworks or OSes provide objects with embedded reference
|
||||
counts;
|
||||
<LI>
|
||||
The memory footprint of <STRONG>intrusive_ptr</STRONG> is the same as the
|
||||
corresponding raw pointer;</LI>
|
||||
The memory footprint of <STRONG>intrusive_ptr</STRONG>
|
||||
is the same as the corresponding raw pointer;
|
||||
<LI>
|
||||
<STRONG>intrusive_ptr<T></STRONG> can be constructed from an arbitrary
|
||||
raw pointer of type <STRONG>T *</STRONG>.</LI></UL>
|
||||
@@ -61,7 +61,10 @@
|
||||
|
||||
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);
|
||||
template<class Y> intrusive_ptr & <A href="#assignment" >operator=</A>(T * r);
|
||||
intrusive_ptr & <A href="#assignment" >operator=</A>(T * r);
|
||||
|
||||
void <a href="#reset" >reset</a>();
|
||||
void <a href="#reset" >reset</a>(T * r);
|
||||
|
||||
T & <A href="#indirection" >operator*</A>() const; // never throws
|
||||
T * <A href="#indirection" >operator-></A>() const; // never throws
|
||||
@@ -100,6 +103,9 @@
|
||||
template<class T, class U>
|
||||
intrusive_ptr<T> <A href="#static_pointer_cast" >static_pointer_cast</A>(intrusive_ptr<U> const & r); // never throws
|
||||
|
||||
template<class T, class U>
|
||||
intrusive_ptr<T> <A href="#const_pointer_cast" >const_pointer_cast</A>(intrusive_ptr<U> const & r); // never throws
|
||||
|
||||
template<class T, class U>
|
||||
intrusive_ptr<T> <A href="#dynamic_pointer_cast" >dynamic_pointer_cast</A>(intrusive_ptr<U> const & r); // never throws
|
||||
|
||||
@@ -124,8 +130,8 @@
|
||||
<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); // never throws
|
||||
template<class Y> intrusive_ptr(intrusive_ptr<Y> const & r); // never throws</pre>
|
||||
<pre>intrusive_ptr(intrusive_ptr const & r);
|
||||
template<class Y> intrusive_ptr(intrusive_ptr<Y> const & r);</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>
|
||||
@@ -136,13 +142,22 @@ template<class Y> intrusive_ptr(intrusive_ptr<Y> const & r); //
|
||||
<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); // never throws
|
||||
template<class Y> intrusive_ptr & operator=(intrusive_ptr<Y> const & r); // never throws
|
||||
<pre>intrusive_ptr & operator=(intrusive_ptr const & r);
|
||||
template<class Y> intrusive_ptr & operator=(intrusive_ptr<Y> const & r);
|
||||
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>
|
||||
@@ -193,26 +208,26 @@ 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>
|
||||
bool operator==(intrusive_ptr<T> const & a, T * b); // never throws</pre>
|
||||
<pre>template<class T, class U>
|
||||
bool operator==(intrusive_ptr<T> const & a, U * 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>
|
||||
bool operator!=(intrusive_ptr<T> const & a, T * b); // never throws</pre>
|
||||
<pre>template<class T, class U>
|
||||
bool operator!=(intrusive_ptr<T> const & a, U * 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>
|
||||
bool operator==(T * a, intrusive_ptr<T> const & b); // never throws</pre>
|
||||
<pre>template<class T, class U>
|
||||
bool operator==(T * a, intrusive_ptr<U> 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>
|
||||
bool operator!=(T * a, intrusive_ptr<T> const & b); // never throws</pre>
|
||||
<pre>template<class T, class U>
|
||||
bool operator!=(T * a, intrusive_ptr<U> const & b); // never throws</pre>
|
||||
<blockquote>
|
||||
<p><b>Returns:</b> <code>a != b.get()</code>.</p>
|
||||
<p><b>Throws:</b> nothing.</p>
|
||||
@@ -250,6 +265,13 @@ intrusive_ptr & operator=(T * r);</pre>
|
||||
<P><B>Returns:</B> <code>intrusive_ptr<T>(static_cast<T*>(r.get()))</code>.</P>
|
||||
<P><B>Throws:</B> nothing.</P>
|
||||
</BLOCKQUOTE>
|
||||
<h3><a name="const_pointer_cast">const_pointer_cast</a></h3>
|
||||
<pre>template<class T, class U>
|
||||
intrusive_ptr<T> const_pointer_cast(intrusive_ptr<U> const & r); // never throws</pre>
|
||||
<BLOCKQUOTE>
|
||||
<P><B>Returns:</B> <code>intrusive_ptr<T>(const_cast<T*>(r.get()))</code>.</P>
|
||||
<P><B>Throws:</B> nothing.</P>
|
||||
</BLOCKQUOTE>
|
||||
<h3><a name="dynamic_pointer_cast">dynamic_pointer_cast</a></h3>
|
||||
<pre>template<class T, class U>
|
||||
intrusive_ptr<T> dynamic_pointer_cast(intrusive_ptr<U> const & r);</pre>
|
||||
@@ -268,9 +290,8 @@ intrusive_ptr & operator=(T * r);</pre>
|
||||
<p>
|
||||
$Date$</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>
|
||||
<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>
|
||||
</body>
|
||||
</html>
|
||||
|
105
pointer_cast.html
Normal file
105
pointer_cast.html
Normal file
@@ -0,0 +1,105 @@
|
||||
<!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>
|
108
pointer_to_other.html
Normal file
108
pointer_to_other.html
Normal file
@@ -0,0 +1,108 @@
|
||||
<!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><img src="../../c++boost.gif" alt="c++boost.gif (8819 bytes)" align="middle" width="277" height="86"><a name="scoped_array">scoped_array</a>
|
||||
class template</h1>
|
||||
<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>
|
||||
<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
|
||||
@@ -14,10 +14,9 @@
|
||||
<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
|
||||
@@ -48,6 +47,8 @@
|
||||
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
|
||||
};
|
||||
|
||||
@@ -90,6 +91,10 @@
|
||||
<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
|
||||
@@ -101,11 +106,11 @@
|
||||
<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>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>
|
||||
<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>
|
||||
</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><img src="../../c++boost.gif" alt="c++boost.gif (8819 bytes)" align="middle" width="277" height="86"><a name="scoped_ptr">scoped_ptr</a>
|
||||
class template</h1>
|
||||
<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>
|
||||
<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>,
|
||||
@@ -48,6 +48,8 @@
|
||||
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
|
||||
};
|
||||
|
||||
@@ -90,6 +92,10 @@
|
||||
<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
|
||||
@@ -115,7 +121,7 @@ class MyClass {
|
||||
int add_one() { return ++*ptr; }
|
||||
};
|
||||
|
||||
void main()
|
||||
int main()
|
||||
{
|
||||
boost::scoped_ptr<Shoe> x(new Shoe);
|
||||
MyClass my_instance;
|
||||
@@ -150,8 +156,8 @@ 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>
|
||||
@@ -165,12 +171,11 @@ 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>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>
|
||||
<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>
|
||||
</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><img src="../../c++boost.gif" alt="c++boost.gif (8819 bytes)" align="middle" width="277" height="86">shared_array
|
||||
class template</h1>
|
||||
<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>
|
||||
<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>
|
||||
@@ -47,12 +47,14 @@
|
||||
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() const; // never throws
|
||||
T & <a href="#indexing">operator[]</a>(std::ptrdiff_t i) 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
|
||||
};
|
||||
|
||||
@@ -139,6 +141,10 @@
|
||||
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
|
||||
@@ -171,10 +177,9 @@ 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>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>
|
||||
<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>
|
||||
</body>
|
||||
</html>
|
||||
|
172
shared_ptr.htm
172
shared_ptr.htm
@@ -5,8 +5,8 @@
|
||||
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
||||
</head>
|
||||
<body text="#000000" bgColor="#ffffff">
|
||||
<h1><IMG height="86" alt="c++boost.gif (8819 bytes)" src="../../c++boost.gif" width="277" align="middle">shared_ptr
|
||||
class template</h1>
|
||||
<h1><A href="../../index.htm"><IMG height="86" alt="boost.png (6897 bytes)" src="../../boost.png" width="277" align="middle"
|
||||
border="0"></A>shared_ptr class template</h1>
|
||||
<p><A href="#Introduction">Introduction</A><br>
|
||||
<A href="#BestPractices">Best Practices</A><br>
|
||||
<A href="#Synopsis">Synopsis</A><br>
|
||||
@@ -20,7 +20,7 @@
|
||||
<A href="sp_techniques.html">Programming Techniques</A></p>
|
||||
<h2><a name="Introduction">Introduction</a></h2>
|
||||
<p>The <b>shared_ptr</b> class template stores a pointer to a dynamically allocated
|
||||
object, typically with a C++ <EM>new-expression</EM> . The object pointed to is
|
||||
object, typically with a C++ <EM>new-expression</EM>. The object pointed to is
|
||||
guaranteed to be deleted when the last <b>shared_ptr</b> pointing to it is
|
||||
destroyed or reset. See the <A href="#example">example</A>.</p>
|
||||
<p>Every <b>shared_ptr</b> meets the <b>CopyConstructible</b> and <b>Assignable</b>
|
||||
@@ -47,6 +47,13 @@
|
||||
to <STRONG>shared_ptr<T const></STRONG>, to <STRONG>shared_ptr<U></STRONG>
|
||||
where <STRONG>U</STRONG> is an accessible base of <STRONG>T</STRONG>, and to <STRONG>
|
||||
shared_ptr<void></STRONG>.</P>
|
||||
<P><STRONG>shared_ptr</STRONG> is now part of <STRONG>TR1</STRONG>, the first C++
|
||||
Library Technical Report. The latest draft of <STRONG>TR1</STRONG> is available
|
||||
at the following location:</P>
|
||||
<P><A href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2005/n1745.pdf">http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2005/n1745.pdf</A>
|
||||
(1.36Mb PDF)</P>
|
||||
<P>This implementation conforms to the TR1 specification, with the only exception
|
||||
that it resides in namespace <code>boost</code> instead of <code>std::tr1</code>.</P>
|
||||
<h2><a name="BestPractices">Best Practices</a></h2>
|
||||
<P>A simple guideline that nearly eliminates the possibility of memory leaks is:
|
||||
always use a named smart pointer variable to hold the result of <STRONG>new. </STRONG>
|
||||
@@ -99,10 +106,12 @@ void bad()
|
||||
<A href="#constructors" >shared_ptr</A>(); // never throws
|
||||
template<class Y> explicit <A href="#constructors" >shared_ptr</A>(Y * p);
|
||||
template<class Y, class D> <A href="#constructors" >shared_ptr</A>(Y * p, D d);
|
||||
template<class Y, class D, class A> <A href="#allocator_constructor" >shared_ptr</A>(Y * p, D d, A a);
|
||||
<A href="#destructor" >~shared_ptr</A>(); // never throws
|
||||
|
||||
<A href="#constructors" >shared_ptr</A>(shared_ptr const & r); // never throws
|
||||
template<class Y> <A href="#constructors" >shared_ptr</A>(shared_ptr<Y> const & r); // never throws
|
||||
template<class Y> <A href="#constructors" >shared_ptr</A>(shared_ptr<Y> const & r, T * p); // never throws
|
||||
template<class Y> explicit <A href="#constructors" >shared_ptr</A>(<A href="weak_ptr.htm" >weak_ptr</A><Y> const & r);
|
||||
template<class Y> explicit <A href="#constructors" >shared_ptr</A>(std::auto_ptr<Y> & r);
|
||||
|
||||
@@ -113,6 +122,8 @@ void bad()
|
||||
void <A href="#reset" >reset</A>(); // never throws
|
||||
template<class Y> void <A href="#reset" >reset</A>(Y * p);
|
||||
template<class Y, class D> void <A href="#reset" >reset</A>(Y * p, D d);
|
||||
template<class Y, class D, class A> void <A href="#reset" >reset</A>(Y * p, D d, A a);
|
||||
template<class Y> void <A href="#reset" >reset</A>(shared_ptr<Y> const & r, T * p); // never throws
|
||||
|
||||
T & <A href="#indirection" >operator*</A>() const; // never throws
|
||||
T * <A href="#indirection" >operator-></A>() const; // never throws
|
||||
@@ -142,6 +153,9 @@ void bad()
|
||||
template<class T, class U>
|
||||
shared_ptr<T> <A href="#static_pointer_cast" >static_pointer_cast</A>(shared_ptr<U> const & r); // never throws
|
||||
|
||||
template<class T, class U>
|
||||
shared_ptr<T> <A href="#const_pointer_cast" >const_pointer_cast</A>(shared_ptr<U> const & r); // never throws
|
||||
|
||||
template<class T, class U>
|
||||
shared_ptr<T> <A href="#dynamic_pointer_cast" >dynamic_pointer_cast</A>(shared_ptr<U> const & r); // never throws
|
||||
|
||||
@@ -151,15 +165,6 @@ void bad()
|
||||
template<class D, class T>
|
||||
D * <A href="#get_deleter">get_deleter</A>(shared_ptr<T> const & p);
|
||||
}</pre>
|
||||
<P><EM>[It might be convenient to relax the requirements on <STRONG>shared_ptr</STRONG>'s
|
||||
signature, allowing an additional, defaulted, template parameter; the parameter
|
||||
can encode the threading model, for example. This would help in detecting
|
||||
possible ODR violations.</EM></P>
|
||||
<P><EM>On the other hand, using <STRONG>shared_ptr</STRONG> as an argument to a
|
||||
template template parameter requires an exact signature match. </EM><EM>Metaprogramming
|
||||
experts tend to deemphasize template template parameters as they are too
|
||||
inflexible, but the alternative is typically an std::allocator::rebind-type
|
||||
"hack".]</EM></P>
|
||||
<h2><a name="Members">Members</a></h2>
|
||||
<h3><a name="element_type">element_type</a></h3>
|
||||
<pre>typedef T element_type;</pre>
|
||||
@@ -169,24 +174,13 @@ void bad()
|
||||
<h3><a name="constructors">constructors</a></h3>
|
||||
<pre>shared_ptr(); // never throws</pre>
|
||||
<blockquote>
|
||||
<p><b>Effects:</b> Constructs an <EM>empty</EM> <b>shared_ptr</b>. <EM>Empty</EM> <STRONG>
|
||||
shared_ptr</STRONG> objects have an unspecified <A href="#use_count">use_count</A>.</p>
|
||||
<p><b>Postconditions:</b> <code>get() == 0</code>.</p>
|
||||
<p><b>Effects:</b> Constructs an <EM>empty</EM> <b>shared_ptr</b>.</p>
|
||||
<p><b>Postconditions:</b> <code>use_count() == 0 && get() == 0</code>.</p>
|
||||
<p><b>Throws:</b> nothing.</p>
|
||||
</blockquote>
|
||||
<P><EM>[The nothrow guarantee is important, since <STRONG>reset()</STRONG> is specified
|
||||
in terms of the default constructor; this implies that the constructor must not
|
||||
allocate memory.</EM></P>
|
||||
<P><EM>There are two possible implementations, one stores 0 as a pointer to the
|
||||
reference count, the other uses a single statically allocated count for all
|
||||
default-constructed <STRONG>shared_ptr</STRONG>s. The second option is
|
||||
difficult to achieve in the current header-only reference implementation due to
|
||||
thread safety issues and initialization order, but it should not be precluded
|
||||
by the specification. That's why the use_count() has been left unspecified.</EM></P>
|
||||
<P><EM>A future release may enable <STRONG>shared_ptr</STRONG> construction from a
|
||||
literal zero, for consistency with built-in pointers. It is not clear yet
|
||||
whether this constructor should be left implicit, enabling <STRONG>0</STRONG> to
|
||||
be used as a shorthand for <STRONG>shared_ptr<T>().</STRONG>]</EM></P>
|
||||
allocate memory.]</EM></P>
|
||||
<pre>template<class Y> explicit shared_ptr(Y * p);</pre>
|
||||
<blockquote>
|
||||
<p><b>Requirements:</b> <b>p</b> must be convertible to <b>T *</b>. <STRONG>Y</STRONG>
|
||||
@@ -195,8 +189,8 @@ void bad()
|
||||
</p>
|
||||
<p><b>Effects:</b> Constructs a <b>shared_ptr</b> that <EM>owns</EM> the pointer <b>p</b>.</p>
|
||||
<p><b>Postconditions:</b> <code>use_count() == 1 && get() == p</code>.</p>
|
||||
<p><b>Throws:</b> <b>std::bad_alloc</b> or an implementation-defined exception when
|
||||
a resource other than memory could not be obtained.</p>
|
||||
<p><b>Throws:</b> <STRONG>std::bad_alloc</STRONG>, or an implementation-defined
|
||||
exception when a resource other than memory could not be obtained.</p>
|
||||
<p><b>Exception safety:</b> If an exception is thrown, <code>delete p</code> is
|
||||
called.</p>
|
||||
<P><STRONG>Notes:</STRONG> <B>p</B> must be a pointer to an object that was
|
||||
@@ -213,18 +207,23 @@ void bad()
|
||||
The current implementation uses a different mechanism, <A href="enable_shared_from_this.html">
|
||||
enable_shared_from_this</A>, to solve the "<STRONG>shared_ptr</STRONG> from <STRONG>
|
||||
this</STRONG>" problem.</EM><EM>]</EM></P>
|
||||
<pre>template<class Y, class D> shared_ptr(Y * p, D d);</pre>
|
||||
<a name="allocator_constructor"></a>
|
||||
<pre>template<class Y, class D> shared_ptr(Y * p, D d);
|
||||
template<class Y, class D, class A> shared_ptr(Y * p, D d, A a);</pre>
|
||||
<blockquote>
|
||||
<p><b>Requirements:</b> <B>p</B> must be convertible to <B>T *</B>. <STRONG>D</STRONG>
|
||||
must be <STRONG>CopyConstructible</STRONG>. The copy constructor and destructor
|
||||
of <b>D</b> must not throw. The expression <code>d(p)</code> must be
|
||||
well-formed, must not invoke undefined behavior, and must not throw exceptions.
|
||||
well-formed, must not invoke undefined behavior, and must not throw exceptions. <STRONG>
|
||||
A</STRONG> must be an <EM>Allocator</EM>, as described in section 20.1.5 (<STRONG>Allocator
|
||||
requirements</STRONG>) of the C++ Standard.
|
||||
</p>
|
||||
<p><b>Effects:</b> Constructs a <b>shared_ptr</b> that <EM>owns</EM> the pointer <STRONG>
|
||||
p</STRONG> and the deleter <b>d</b>.</p>
|
||||
p</STRONG> and the deleter <b>d</b>. The second constructor allocates
|
||||
memory using a copy of <STRONG>a</STRONG>.</p>
|
||||
<p><b>Postconditions:</b> <code>use_count() == 1 && get() == p</code>.</p>
|
||||
<p><b>Throws:</b> <b>std::bad_alloc</b> or an implementation-defined exception when
|
||||
a resource other than memory could not be obtained.</p>
|
||||
<p><b>Throws:</b> <STRONG>std::bad_alloc</STRONG>, or an implementation-defined
|
||||
exception when a resource other than memory could not be obtained.</p>
|
||||
<p><b>Exception safety:</b> If an exception is thrown, <code>d(p)</code> is called.</p>
|
||||
<p><b>Notes:</b> When the the time comes to delete the object pointed to by <b>p</b>,
|
||||
the stored copy of <STRONG>d</STRONG> is invoked with the stored copy of <STRONG>p</STRONG>
|
||||
@@ -242,17 +241,10 @@ void bad()
|
||||
<P><EM>The requirement that the copy constructor of <b>D</b> does not throw comes from
|
||||
the pass by value. If the copy constructor throws, the pointer is leaked.
|
||||
Removing the requirement requires a pass by (const) reference.</EM></P>
|
||||
<P><EM>Pass by reference is problematic since (1) pass by value conveniently changes
|
||||
functions (function references) to function pointers (this has to be performed
|
||||
manually otherwise and some compilers may not be able to do it) and (2) const
|
||||
references don't currently (per the standard) bind to functions. This can be
|
||||
solved (I think) but it requires an overload set that breaks on many compilers
|
||||
due to 14.5.5.2 problems (and of course it will break on compilers that don't
|
||||
do partial ordering at all.)</EM></P>
|
||||
<P><EM>The main problem with pass by reference, though, lies in its interaction with
|
||||
rvalues. A const reference may still cause a copy, and will require a const
|
||||
operator(). A non-const reference won't bind to an rvalue at all. A good
|
||||
solution to this problem is the rvalue reference proposed in <A href="http://std.dkuug.dk/jtc1/sc22/wg21/docs/papers/2002/n1377.htm">
|
||||
<P><EM>The main problem with pass by reference lies in its interaction with rvalues. A
|
||||
const reference may still cause a copy, and will require a const operator(). A
|
||||
non-const reference won't bind to an rvalue at all. A good solution to this
|
||||
problem is the rvalue reference proposed in <A href="http://std.dkuug.dk/jtc1/sc22/wg21/docs/papers/2002/n1377.htm">
|
||||
N1377</A>/<A href="http://std.dkuug.dk/jtc1/sc22/wg21/docs/papers/2002/n1385.htm">N1385</A>.]</EM></P>
|
||||
<pre>shared_ptr(shared_ptr const & r); // never throws
|
||||
template<class Y> shared_ptr(shared_ptr<Y> const & r); // never throws</pre>
|
||||
@@ -263,11 +255,17 @@ template<class Y> shared_ptr(shared_ptr<Y> const & r); // never
|
||||
r.use_count()</code>.</p>
|
||||
<p><b>Throws:</b> nothing.</p>
|
||||
</blockquote>
|
||||
<pre>template<class Y> shared_ptr(shared_ptr<Y> const & r, T * p); // never throws</pre>
|
||||
<blockquote>
|
||||
<p><b>Effects:</b> constructs a <b>shared_ptr</b> that <EM>shares ownership</EM> with
|
||||
<b>r</b> and stores <b>p</b>.</p>
|
||||
<p><b>Postconditions:</b> <code>get() == p && use_count() == r.use_count()</code>.</p>
|
||||
<p><b>Throws:</b> nothing.</p>
|
||||
</blockquote>
|
||||
<pre>template<class Y> explicit shared_ptr(<A href="weak_ptr.htm" >weak_ptr</A><Y> const & r);</pre>
|
||||
<blockquote>
|
||||
<p><b>Effects:</b> If <b>r</b> is <EM>empty</EM>, constructs an <EM>empty</EM> <b>shared_ptr</b>;
|
||||
otherwise, constructs a <b>shared_ptr</b> that <EM>shares ownership</EM> with <b>r</b>
|
||||
and stores a copy of the pointer stored in <STRONG>r</STRONG>.</p>
|
||||
<p><b>Effects:</b> Constructs a <b>shared_ptr</b> that <EM>shares ownership</EM> with
|
||||
<b>r</b> and stores a copy of the pointer stored in <STRONG>r</STRONG>.</p>
|
||||
<p><b>Postconditions:</b> <code>use_count() == r.use_count()</code>.</p>
|
||||
<p><b>Throws:</b> <b>bad_weak_ptr</b> when <code>r.use_count() == 0</code>.</p>
|
||||
<p><b>Exception safety:</b> If an exception is thrown, the constructor has no
|
||||
@@ -277,8 +275,8 @@ template<class Y> shared_ptr(shared_ptr<Y> const & r); // never
|
||||
<BLOCKQUOTE>
|
||||
<P><B>Effects:</B> Constructs a <B>shared_ptr</B>, as if by storing a copy of <STRONG>r.release()</STRONG>.</P>
|
||||
<p><b>Postconditions:</b> <code>use_count() == 1</code>.</p>
|
||||
<p><b>Throws:</b> <b>std::bad_alloc</b> or an implementation-defined exception when
|
||||
a resource other than memory could not be obtained.</p>
|
||||
<p><b>Throws:</b> <STRONG>std::bad_alloc</STRONG>, or an implementation-defined
|
||||
exception when a resource other than memory could not be obtained.</p>
|
||||
<P><B>Exception safety:</B> If an exception is thrown, the constructor has no
|
||||
effect.</P>
|
||||
</BLOCKQUOTE>
|
||||
@@ -322,12 +320,6 @@ q = p;
|
||||
</pre>
|
||||
<p>both assignments may be no-ops.</p>
|
||||
</BLOCKQUOTE>
|
||||
<P><EM>[Some experts consider the note to be redundant, as it appears to essentially
|
||||
mirror the "as if" rule. However, experience suggests that when C++ code is
|
||||
used to describe effects, it is often misinterpreted as required
|
||||
implementation. In addition, it is not entirely clear whether the "as if" rule
|
||||
actually applies here, so it's better to be explicit about the possible
|
||||
optimizations.]</EM></P>
|
||||
<h3><a name="reset">reset</a></h3>
|
||||
<pre>void reset(); // never throws</pre>
|
||||
<BLOCKQUOTE>
|
||||
@@ -341,6 +333,14 @@ q = p;
|
||||
<BLOCKQUOTE>
|
||||
<P><B>Effects:</B> Equivalent to <code>shared_ptr(p, d).swap(*this)</code>.</P>
|
||||
</BLOCKQUOTE>
|
||||
<pre>template<class Y, class D, class A> void reset(Y * p, D d, A a);</pre>
|
||||
<BLOCKQUOTE>
|
||||
<P><B>Effects:</B> Equivalent to <code>shared_ptr(p, d, a).swap(*this)</code>.</P>
|
||||
</BLOCKQUOTE>
|
||||
<pre>template<class Y> void reset(shared_ptr<Y> const & r, T * p); // never throws</pre>
|
||||
<BLOCKQUOTE>
|
||||
<P><B>Effects:</B> Equivalent to <code>shared_ptr(r, p).swap(*this)</code>.</P>
|
||||
</BLOCKQUOTE>
|
||||
<h3><a name="indirection">indirection</a></h3>
|
||||
<pre>T & operator*() const; // never throws</pre>
|
||||
<blockquote>
|
||||
@@ -373,8 +373,8 @@ q = p;
|
||||
<pre>long use_count() const; // never throws</pre>
|
||||
<blockquote>
|
||||
<p><b>Returns:</b> the number of <b>shared_ptr</b> objects, <STRONG>*this</STRONG> included,
|
||||
that <i>share ownership</i> with <b>*this</b>, or an unspecified nonnegative
|
||||
value when <STRONG>*this</STRONG> is <EM>empty</EM>.</p>
|
||||
that <i>share ownership</i> with <b>*this</b>, or 0 when <STRONG>*this</STRONG>
|
||||
is <EM>empty</EM>.</p>
|
||||
<p><b>Throws:</b> nothing.</p>
|
||||
<P><B>Notes:</B> <code>use_count()</code> is not necessarily efficient. Use only
|
||||
for debugging and testing purposes, not for production code.</P>
|
||||
@@ -424,7 +424,7 @@ q = p;
|
||||
<LI>
|
||||
under the equivalence relation defined by <STRONG>operator<</STRONG>, <code>!(a
|
||||
< b) && !(b < a)</code>, two <STRONG>shared_ptr</STRONG> instances
|
||||
are equivalent if and only if they <EM>share ownership</EM>.</LI></UL>
|
||||
are equivalent if and only if they <EM>share ownership</EM> or are both <EM>empty</EM>.</LI></UL>
|
||||
<p><b>Throws:</b> nothing.</p>
|
||||
<P><B>Notes:</B> Allows <STRONG>shared_ptr</STRONG> objects to be used as keys in
|
||||
associative containers.</P>
|
||||
@@ -473,6 +473,21 @@ q = p;
|
||||
<p>will eventually result in undefined behavior, attempting to delete the same
|
||||
object twice.</p>
|
||||
</BLOCKQUOTE>
|
||||
<h3><a name="const_pointer_cast">const_pointer_cast</a></h3>
|
||||
<pre>template<class T, class U>
|
||||
shared_ptr<T> const_pointer_cast(shared_ptr<U> const & r); // never throws</pre>
|
||||
<BLOCKQUOTE>
|
||||
<P><STRONG>Requires:</STRONG> The expression <code>const_cast<T*>(r.get())</code>
|
||||
must be well-formed.</P>
|
||||
<P><B>Returns:</B> If <b>r</b> is <i>empty</i>, an <i>empty</i> <b>shared_ptr<T></b>;
|
||||
otherwise, a <STRONG>shared_ptr<T></STRONG> object that stores a copy of <code>
|
||||
const_cast<T*>(r.get())</code> and <i>shares ownership</i> with <b>r</b>.</P>
|
||||
<P><B>Throws:</B> nothing.</P>
|
||||
<P><B>Notes:</B> the seemingly equivalent expression</P>
|
||||
<p><code>shared_ptr<T>(const_cast<T*>(r.get()))</code></p>
|
||||
<p>will eventually result in undefined behavior, attempting to delete the same
|
||||
object twice.</p>
|
||||
</BLOCKQUOTE>
|
||||
<h3><a name="dynamic_pointer_cast">dynamic_pointer_cast</a></h3>
|
||||
<pre>template<class T, class U>
|
||||
shared_ptr<T> dynamic_pointer_cast(shared_ptr<U> const & r);</pre>
|
||||
@@ -507,6 +522,7 @@ q = p;
|
||||
<P><B>Returns:</B> If <STRONG>*this</STRONG> <EM>owns</EM> a deleter <STRONG>d</STRONG>
|
||||
of type (cv-unqualified) <STRONG>D</STRONG>, returns <code>&d</code>;
|
||||
otherwise returns 0.</P>
|
||||
<P><B>Throws:</B> nothing.</P>
|
||||
</BLOCKQUOTE>
|
||||
<h2><a name="example">Example</a></h2>
|
||||
<p>See <A href="example/shared_ptr_example.cpp">shared_ptr_example.cpp</A> for a
|
||||
@@ -584,11 +600,32 @@ p3.reset(new int(1));
|
||||
// thread B
|
||||
p3.reset(new int(2)); // undefined, multiple writes
|
||||
</pre>
|
||||
<p><STRONG>shared_ptr</STRONG> uses <A href="../config/config.htm">Boost.Config</A>
|
||||
to detect whether the implementation supports threads. If your program is
|
||||
single-threaded, but your platform is autodetected by <STRONG>Boost.Config</STRONG>
|
||||
as supporting multiple threads, <STRONG>#define BOOST_DISABLE_THREADS</STRONG> to
|
||||
eliminate the thread safety overhead.</p>
|
||||
<p> </p>
|
||||
<P>Starting with Boost release 1.33.0, <STRONG>shared_ptr</STRONG> uses a lock-free
|
||||
implementation on the following platforms:</P>
|
||||
<UL>
|
||||
<LI>
|
||||
GNU GCC on x86 or x86-64;
|
||||
<LI>
|
||||
GNU GCC on IA64;
|
||||
<LI>
|
||||
Metrowerks CodeWarrior on PowerPC;
|
||||
<LI>
|
||||
GNU GCC on PowerPC;
|
||||
<LI>
|
||||
Windows.</LI></UL>
|
||||
<P>If your program is single-threaded and does not link to any libraries that might
|
||||
have used <STRONG>shared_ptr</STRONG> in its default configuration, you can <STRONG>
|
||||
#define</STRONG> the macro <STRONG>BOOST_SP_DISABLE_THREADS</STRONG> on a
|
||||
project-wide basis to switch to ordinary non-atomic reference count updates.</P>
|
||||
<P>(Defining <STRONG>BOOST_SP_DISABLE_THREADS</STRONG> in some, but not all,
|
||||
translation units is technically a violation of the One Definition Rule and
|
||||
undefined behavior. Nevertheless, the implementation attempts to do its best to
|
||||
accommodate the request to use non-atomic updates in those translation units.
|
||||
No guarantees, though.)</P>
|
||||
<P>You can define the macro <STRONG>BOOST_SP_USE_PTHREADS</STRONG> to turn off the
|
||||
lock-free platform-specific implementation and fall back to the generic <STRONG>pthread_mutex_t</STRONG>-based
|
||||
code.</P>
|
||||
<h2><a name="FAQ">Frequently Asked Questions</a></h2>
|
||||
<P><B>Q.</B> There are several variations of shared pointers, with different
|
||||
tradeoffs; why does the smart pointer library supply only a single
|
||||
@@ -609,7 +646,7 @@ p3.reset(new int(2)); // undefined, multiple writes
|
||||
day a highly configurable smart pointer may be invented that is also very easy
|
||||
to use and very hard to misuse. Until then, <B>shared_ptr</B> is the smart
|
||||
pointer of choice for a wide range of applications. (Those interested in policy
|
||||
based smart pointers should read <A href="http://cseng.aw.com/book/0,,0201704315,00.html">
|
||||
based smart pointers should read <A href="http://www.awprofessional.com/bookstore/product.asp?isbn=0201704315&rl=1">
|
||||
Modern C++ Design</A> by Andrei Alexandrescu.)<BR>
|
||||
</P>
|
||||
<P><B>Q.</B> I am not convinced. Default parameters can be used where appropriate
|
||||
@@ -673,9 +710,8 @@ int * p = a.release();
|
||||
<p>
|
||||
$Date$</p>
|
||||
<p><small>Copyright 1999 Greg Colvin and Beman Dawes. Copyright 2002 Darin Adler.
|
||||
Copyright 2002, 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>
|
||||
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>
|
||||
</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><img src="../../c++boost.gif" alt="c++boost.gif (8819 bytes)" align="middle" width="277" height="86">Smart
|
||||
Pointers</h1>
|
||||
<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>
|
||||
<p><a href="#Introduction">Introduction</a><br>
|
||||
<a href="#common_requirements">Common Requirements</a><br>
|
||||
<a href="#Exception_Safety">Exception Safety</a><br>
|
||||
@@ -105,7 +105,7 @@
|
||||
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="../../more/lib_guide.htm#Exception-specification">
|
||||
<p>Exception-specifications are not used; see <a href="http://www.boost.org/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
|
||||
@@ -177,10 +177,9 @@
|
||||
and an extensive bibliography.</p>
|
||||
<hr>
|
||||
<p>$Date$</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>
|
||||
<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>
|
||||
</body>
|
||||
</html>
|
||||
|
@@ -9,7 +9,7 @@
|
||||
|
||||
<body bgcolor="#FFFFFF">
|
||||
|
||||
<h1><img src="../../c++boost.gif" alt="c++boost.gif (8819 bytes)" align="middle" WIDTH="277" HEIGHT="86">Smart Pointer Timings</h1>
|
||||
<h1><img src="../../boost.png" alt="boost.png (6897 bytes)" align="middle" WIDTH="277" HEIGHT="86">Smart Pointer Timings</h1>
|
||||
|
||||
<p>In late January 2000, Mark Borgerding put forward a suggestion to boost for
|
||||
a new design of smart pointer whereby an intrusive doubly linked list is used
|
||||
@@ -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="../../people/dave_abrahams.htm">Dave Abrahams</a>,
|
||||
<p>Thanks are due to <a href="http://www.boost.org/people/dave_abrahams.htm">Dave Abrahams</a>,
|
||||
Gavin Collings,
|
||||
<a href="../../people/greg_colvin.htm">Greg Colvin</a> and
|
||||
<a href="../../people/beman_dawes.html">Beman Dawes</a>
|
||||
<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>
|
||||
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><IMG height="86" alt="c++boost.gif (8819 bytes)" src="../../c++boost.gif" width="277" align="middle">Smart
|
||||
Pointer Programming Techniques</h1>
|
||||
<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>
|
||||
<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>
|
||||
@@ -272,6 +272,9 @@ shared_ptr<X> createX()
|
||||
single reference created in <code>make_shared_from_COM</code>. Weak pointers
|
||||
created from <code>pw</code> will be invalidated when the last <code>shared_ptr</code>
|
||||
is destroyed, regardless of whether the COM object itself is still alive.</p>
|
||||
<P>As <A href="../bind/mem_fn.html#Q3">explained</A> in the <code>mem_fn</code> documentation,
|
||||
you need to <A href="../bind/mem_fn.html#stdcall">#define
|
||||
BOOST_MEM_FN_ENABLE_STDCALL</A> first.</P>
|
||||
<h2><A name="intrusive">Using a <code>shared_ptr</code> to hold a pointer to an object
|
||||
with an embedded reference count</A></h2>
|
||||
<p>This is a generalization of the above technique. The example assumes that the
|
||||
@@ -516,6 +519,9 @@ 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>
|
||||
@@ -752,9 +758,8 @@ public:
|
||||
all weak pointers will automatically expire.</p>
|
||||
<hr>
|
||||
<p>$Date$</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>
|
||||
<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>
|
||||
</body>
|
||||
</html>
|
||||
|
@@ -3,10 +3,9 @@
|
||||
//
|
||||
// Copyright (c) 2002, 2003 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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_SP_ENABLE_DEBUG_HOOKS)
|
||||
@@ -105,6 +104,8 @@ static void find_unreachable_objects_impl(map_type const & m, map2_type & m2)
|
||||
|
||||
BOOST_ASSERT(p->use_count() != 0); // there should be no inactive counts in the map
|
||||
|
||||
m2[ i->first ];
|
||||
|
||||
scan_and_count(i->second.first, i->second.second, m, m2);
|
||||
}
|
||||
|
||||
@@ -122,7 +123,7 @@ static void find_unreachable_objects_impl(map_type const & m, map2_type & m2)
|
||||
if(p->use_count() != i->second) open.push_back(p);
|
||||
}
|
||||
|
||||
std::cout << "... " << m2.size() << " objects in open.\n";
|
||||
std::cout << "... " << open.size() << " objects in open.\n";
|
||||
|
||||
for(open_type::iterator j = open.begin(); j != open.end(); ++j)
|
||||
{
|
||||
|
@@ -3,10 +3,9 @@
|
||||
//
|
||||
// Copyright (c) 2002, 2003 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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_SP_ENABLE_DEBUG_HOOKS)
|
||||
|
42
test/Jamfile
42
test/Jamfile
@@ -1,42 +0,0 @@
|
||||
# Boost.SmartPtr Library test Jamfile
|
||||
#
|
||||
# Copyright (c) 2003 Peter Dimov
|
||||
# Copyright (c) 2003 Dave Abrahams
|
||||
#
|
||||
# Permission to copy, use, modify, sell and distribute this software
|
||||
# is granted provided this copyright notice appears in all copies.
|
||||
# This software is provided "as is" without express or implied
|
||||
# warranty, and with no claim as to its suitability for any purpose.
|
||||
|
||||
subproject libs/smart_ptr/test ;
|
||||
|
||||
# bring in rules for testing
|
||||
SEARCH on testing.jam = $(BOOST_BUILD_PATH) ;
|
||||
include testing.jam ;
|
||||
|
||||
# Make tests run by default.
|
||||
DEPENDS all : smart_ptr ;
|
||||
|
||||
{
|
||||
test-suite "smart_ptr"
|
||||
: [ run smart_ptr_test.cpp ]
|
||||
[ run shared_ptr_basic_test.cpp : : : <gcc><*><cxxflags>-Wno-non-virtual-dtor ]
|
||||
[ run shared_ptr_test.cpp : : : <gcc><*><cxxflags>-Wno-non-virtual-dtor ]
|
||||
[ run weak_ptr_test.cpp ]
|
||||
[ run shared_from_this_test.cpp : : : <gcc><*><cxxflags>-Wno-non-virtual-dtor ]
|
||||
[ run get_deleter_test.cpp ]
|
||||
[ run intrusive_ptr_test.cpp ]
|
||||
[ run intrusive_ptr_test.cpp ]
|
||||
[ compile-fail shared_ptr_assign_fail.cpp ]
|
||||
;
|
||||
|
||||
# this one is too slow to run unless explicitly requested, and ALL
|
||||
# tests are run by default when this file is subincluded from
|
||||
# boost/status, so it's guarded from that case. It will only be
|
||||
# built from this directory when the targets "test" (all tests) or
|
||||
# "shared_ptr_alloc_test" are requested.
|
||||
if [ in-invocation-subdir ]
|
||||
{
|
||||
run shared_ptr_alloc_test.cpp ;
|
||||
}
|
||||
}
|
52
test/Jamfile.v2
Normal file
52
test/Jamfile.v2
Normal file
@@ -0,0 +1,52 @@
|
||||
# Boost.SmartPtr Library test Jamfile
|
||||
#
|
||||
# Copyright (c) 2003-2007 Peter Dimov
|
||||
# Copyright (c) 2003 Dave Abrahams
|
||||
#
|
||||
# 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)
|
||||
|
||||
# bring in rules for testing
|
||||
import testing ;
|
||||
|
||||
{
|
||||
test-suite "smart_ptr"
|
||||
: [ run smart_ptr_test.cpp ]
|
||||
[ run shared_ptr_basic_test.cpp : : : <toolset>gcc:<cxxflags>-Wno-non-virtual-dtor ]
|
||||
[ run shared_ptr_test.cpp : : : <toolset>gcc:<cxxflags>-Wno-non-virtual-dtor ]
|
||||
[ run weak_ptr_test.cpp ]
|
||||
[ run shared_from_this_test.cpp : : : <toolset>gcc:<cxxflags>-Wno-non-virtual-dtor ]
|
||||
[ run get_deleter_test.cpp ]
|
||||
[ run intrusive_ptr_test.cpp ]
|
||||
[ run atomic_count_test.cpp ]
|
||||
[ run lw_mutex_test.cpp ]
|
||||
[ compile-fail shared_ptr_assign_fail.cpp ]
|
||||
[ compile-fail shared_ptr_delete_fail.cpp ]
|
||||
[ compile-fail shared_ptr_compare_fail.cpp ]
|
||||
[ run shared_ptr_alloc2_test.cpp ]
|
||||
[ run pointer_cast_test.cpp ]
|
||||
[ compile pointer_to_other_test.cpp ]
|
||||
[ run auto_ptr_rv_test.cpp ]
|
||||
[ run shared_ptr_alias_test.cpp ]
|
||||
[ run shared_ptr_rv_test.cpp ]
|
||||
[ run shared_ptr_move_test.cpp ]
|
||||
[ compile-fail shared_ptr_pv_fail.cpp ]
|
||||
[ run sp_unary_addr_test.cpp ]
|
||||
[ compile-fail scoped_ptr_eq_fail.cpp ]
|
||||
[ compile-fail scoped_array_eq_fail.cpp ]
|
||||
[ run esft_regtest.cpp ]
|
||||
[ run yield_k_test.cpp ]
|
||||
[ run yield_k_test.cpp : : : <threading>multi : yield_k_test.mt ]
|
||||
[ run spinlock_test.cpp ]
|
||||
[ run spinlock_try_test.cpp ]
|
||||
[ run spinlock_try_test.cpp : : : <threading>multi : spinlock_try_test.mt ]
|
||||
[ run spinlock_pool_test.cpp ]
|
||||
[ run make_shared_test.cpp ]
|
||||
[ run sp_convertible_test.cpp ]
|
||||
[ run wp_convertible_test.cpp ]
|
||||
[ run ip_convertible_test.cpp ]
|
||||
[ run allocate_shared_test.cpp ]
|
||||
[ run sp_atomic_test.cpp ]
|
||||
;
|
||||
}
|
189
test/allocate_shared_test.cpp
Normal file
189
test/allocate_shared_test.cpp
Normal file
@@ -0,0 +1,189 @@
|
||||
// allocate_shared_test.cpp
|
||||
//
|
||||
// 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
|
||||
|
||||
#include <boost/detail/lightweight_test.hpp>
|
||||
#include <boost/make_shared.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
#include <boost/weak_ptr.hpp>
|
||||
|
||||
class X
|
||||
{
|
||||
private:
|
||||
|
||||
X( X const & );
|
||||
X & operator=( X const & );
|
||||
|
||||
public:
|
||||
|
||||
static int instances;
|
||||
|
||||
int v;
|
||||
|
||||
explicit X( int a1 = 0, int a2 = 0, int a3 = 0, int a4 = 0, int a5 = 0, int a6 = 0, int a7 = 0, int a8 = 0, int a9 = 0 ): v( a1+a2+a3+a4+a5+a6+a7+a8+a9 )
|
||||
{
|
||||
++instances;
|
||||
}
|
||||
|
||||
~X()
|
||||
{
|
||||
--instances;
|
||||
}
|
||||
};
|
||||
|
||||
int X::instances = 0;
|
||||
|
||||
int main()
|
||||
{
|
||||
{
|
||||
boost::shared_ptr< int > pi = boost::allocate_shared< int >( std::allocator<int>() );
|
||||
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( *pi == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< int > pi = boost::allocate_shared< int >( std::allocator<int>(), 5 );
|
||||
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( *pi == 5 );
|
||||
}
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::allocate_shared< X >( std::allocator<void>() );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 0 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::allocate_shared< X >( std::allocator<void>(), 1 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::allocate_shared< X >( std::allocator<void>(), 1, 2 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::allocate_shared< X >( std::allocator<void>(), 1, 2, 3 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::allocate_shared< X >( std::allocator<void>(), 1, 2, 3, 4 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3+4 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::allocate_shared< X >( std::allocator<void>(), 1, 2, 3, 4, 5 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3+4+5 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::allocate_shared< X >( std::allocator<void>(), 1, 2, 3, 4, 5, 6 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3+4+5+6 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::allocate_shared< X >( std::allocator<void>(), 1, 2, 3, 4, 5, 6, 7 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3+4+5+6+7 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::allocate_shared< X >( std::allocator<void>(), 1, 2, 3, 4, 5, 6, 7, 8 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::allocate_shared< X >( std::allocator<void>(), 1, 2, 3, 4, 5, 6, 7, 8, 9 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8+9 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
return boost::report_errors();
|
||||
}
|
40
test/atomic_count_test.cpp
Normal file
40
test/atomic_count_test.cpp
Normal file
@@ -0,0 +1,40 @@
|
||||
//
|
||||
// atomic_count_test.cpp
|
||||
//
|
||||
// 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/detail/atomic_count.hpp>
|
||||
#include <boost/detail/lightweight_test.hpp>
|
||||
|
||||
int main()
|
||||
{
|
||||
boost::detail::atomic_count n( 4 );
|
||||
|
||||
BOOST_TEST( n == 4L );
|
||||
|
||||
++n;
|
||||
|
||||
BOOST_TEST( n == 5L );
|
||||
BOOST_TEST( --n != 0L );
|
||||
|
||||
boost::detail::atomic_count m( 0 );
|
||||
|
||||
BOOST_TEST( m == 0 );
|
||||
|
||||
++m;
|
||||
|
||||
BOOST_TEST( m == 1 );
|
||||
|
||||
++m;
|
||||
|
||||
BOOST_TEST( m == 2 );
|
||||
BOOST_TEST( --m != 0 );
|
||||
BOOST_TEST( --m == 0 );
|
||||
|
||||
return boost::report_errors();
|
||||
}
|
111
test/auto_ptr_rv_test.cpp
Normal file
111
test/auto_ptr_rv_test.cpp
Normal file
@@ -0,0 +1,111 @@
|
||||
//
|
||||
// auto_ptr_rv_test.cpp
|
||||
//
|
||||
// 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
|
||||
//
|
||||
|
||||
#include <boost/shared_ptr.hpp>
|
||||
#include <boost/detail/lightweight_test.hpp>
|
||||
#include <memory>
|
||||
|
||||
struct X
|
||||
{
|
||||
static long instances;
|
||||
|
||||
X()
|
||||
{
|
||||
++instances;
|
||||
}
|
||||
|
||||
~X()
|
||||
{
|
||||
--instances;
|
||||
}
|
||||
|
||||
static std::auto_ptr<X> create()
|
||||
{
|
||||
return std::auto_ptr<X>( new X );
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
X( X const & );
|
||||
X & operator=( X const & );
|
||||
};
|
||||
|
||||
long X::instances = 0;
|
||||
|
||||
int main()
|
||||
{
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
{
|
||||
boost::shared_ptr<X> p( X::create() );
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
p = X::create();
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
p.reset();
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
p = X::create();
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
}
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
{
|
||||
boost::shared_ptr<X const> p( X::create() );
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
p = X::create();
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
p.reset();
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
p = X::create();
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
}
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
{
|
||||
boost::shared_ptr<void> p( X::create() );
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
p = X::create();
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
p.reset();
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
p = X::create();
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
}
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
{
|
||||
boost::shared_ptr<void const> p( X::create() );
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
p = X::create();
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
p.reset();
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
p = X::create();
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
}
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
return boost::report_errors();
|
||||
}
|
@@ -3,10 +3,9 @@
|
||||
//
|
||||
// Copyright (c) 2003 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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/shared_ptr.hpp>
|
||||
|
221
test/esft_regtest.cpp
Normal file
221
test/esft_regtest.cpp
Normal file
@@ -0,0 +1,221 @@
|
||||
//
|
||||
// esft_regtest.cpp
|
||||
//
|
||||
// A regression test for enable_shared_from_this
|
||||
//
|
||||
// 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/enable_shared_from_this.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
#include <boost/weak_ptr.hpp>
|
||||
#include <boost/detail/lightweight_test.hpp>
|
||||
#include <memory>
|
||||
#include <string>
|
||||
|
||||
class X: public boost::enable_shared_from_this< X >
|
||||
{
|
||||
private:
|
||||
|
||||
int destroyed_;
|
||||
int deleted_;
|
||||
int expected_;
|
||||
|
||||
private:
|
||||
|
||||
X( X const& );
|
||||
X& operator=( X const& );
|
||||
|
||||
public:
|
||||
|
||||
static int instances;
|
||||
|
||||
public:
|
||||
|
||||
explicit X( int expected ): destroyed_( 0 ), deleted_( 0 ), expected_( expected )
|
||||
{
|
||||
++instances;
|
||||
}
|
||||
|
||||
~X()
|
||||
{
|
||||
BOOST_TEST( deleted_ == expected_ );
|
||||
BOOST_TEST( destroyed_ == 0 );
|
||||
++destroyed_;
|
||||
--instances;
|
||||
}
|
||||
|
||||
typedef void (*deleter_type)( X* );
|
||||
|
||||
static void deleter( X * px )
|
||||
{
|
||||
++px->deleted_;
|
||||
}
|
||||
|
||||
static void deleter2( X * px )
|
||||
{
|
||||
++px->deleted_;
|
||||
delete px;
|
||||
}
|
||||
};
|
||||
|
||||
int X::instances = 0;
|
||||
|
||||
void test()
|
||||
{
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
{
|
||||
X x( 0 );
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
}
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
{
|
||||
std::auto_ptr<X> px( new X( 0 ) );
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
}
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
{
|
||||
boost::shared_ptr<X> px( new X( 0 ) );
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
boost::weak_ptr<X> wp( px );
|
||||
BOOST_TEST( !wp.expired() );
|
||||
|
||||
px.reset();
|
||||
|
||||
BOOST_TEST( wp.expired() );
|
||||
}
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
{
|
||||
X x( 1 );
|
||||
boost::shared_ptr<X> px( &x, X::deleter );
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
X::deleter_type * pd = boost::get_deleter<X::deleter_type>( px );
|
||||
BOOST_TEST( pd != 0 && *pd == X::deleter );
|
||||
|
||||
boost::weak_ptr<X> wp( px );
|
||||
BOOST_TEST( !wp.expired() );
|
||||
|
||||
px.reset();
|
||||
|
||||
BOOST_TEST( wp.expired() );
|
||||
}
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
{
|
||||
boost::shared_ptr<X> px( new X( 1 ), X::deleter2 );
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
X::deleter_type * pd = boost::get_deleter<X::deleter_type>( px );
|
||||
BOOST_TEST( pd != 0 && *pd == X::deleter2 );
|
||||
|
||||
boost::weak_ptr<X> wp( px );
|
||||
BOOST_TEST( !wp.expired() );
|
||||
|
||||
px.reset();
|
||||
|
||||
BOOST_TEST( wp.expired() );
|
||||
}
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
struct V: public boost::enable_shared_from_this<V>
|
||||
{
|
||||
virtual ~V() {}
|
||||
std::string m_;
|
||||
};
|
||||
|
||||
struct V2
|
||||
{
|
||||
virtual ~V2() {}
|
||||
std::string m2_;
|
||||
};
|
||||
|
||||
struct W: V2, V
|
||||
{
|
||||
};
|
||||
|
||||
void test2()
|
||||
{
|
||||
boost::shared_ptr<W> p( new W );
|
||||
}
|
||||
|
||||
void test3()
|
||||
{
|
||||
V * p = new W;
|
||||
boost::shared_ptr<void> pv( p );
|
||||
BOOST_TEST( pv.get() == p );
|
||||
BOOST_TEST( pv.use_count() == 1 );
|
||||
}
|
||||
|
||||
struct null_deleter
|
||||
{
|
||||
void operator()( void const* ) const {}
|
||||
};
|
||||
|
||||
void test4()
|
||||
{
|
||||
boost::shared_ptr<V> pv( new V );
|
||||
boost::shared_ptr<V> pv2( pv.get(), null_deleter() );
|
||||
BOOST_TEST( pv2.get() == pv.get() );
|
||||
BOOST_TEST( pv2.use_count() == 1 );
|
||||
}
|
||||
|
||||
void test5()
|
||||
{
|
||||
V v;
|
||||
|
||||
boost::shared_ptr<V> p1( &v, null_deleter() );
|
||||
BOOST_TEST( p1.get() == &v );
|
||||
BOOST_TEST( p1.use_count() == 1 );
|
||||
|
||||
try
|
||||
{
|
||||
p1->shared_from_this();
|
||||
}
|
||||
catch( ... )
|
||||
{
|
||||
BOOST_ERROR( "p1->shared_from_this() failed" );
|
||||
}
|
||||
|
||||
p1.reset();
|
||||
|
||||
boost::shared_ptr<V> p2( &v, null_deleter() );
|
||||
BOOST_TEST( p2.get() == &v );
|
||||
BOOST_TEST( p2.use_count() == 1 );
|
||||
|
||||
try
|
||||
{
|
||||
p2->shared_from_this();
|
||||
}
|
||||
catch( ... )
|
||||
{
|
||||
BOOST_ERROR( "p2->shared_from_this() failed" );
|
||||
}
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
test();
|
||||
test2();
|
||||
test3();
|
||||
test4();
|
||||
test5();
|
||||
|
||||
return boost::report_errors();
|
||||
}
|
@@ -3,10 +3,9 @@
|
||||
//
|
||||
// Copyright (c) 2002 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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/shared_ptr.hpp>
|
||||
|
@@ -1,4 +1,7 @@
|
||||
#if defined(_MSC_VER) && !defined(__ICL) && !defined(__COMO__)
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#if defined(BOOST_MSVC)
|
||||
|
||||
#pragma warning(disable: 4786) // identifier truncated in debug info
|
||||
#pragma warning(disable: 4710) // function not inlined
|
||||
#pragma warning(disable: 4711) // function selected for automatic inline expansion
|
||||
@@ -6,21 +9,26 @@
|
||||
#pragma warning(disable: 4355) // 'this' : used in base member initializer list
|
||||
#pragma warning(disable: 4511) // copy constructor could not be generated
|
||||
#pragma warning(disable: 4512) // assignment operator could not be generated
|
||||
|
||||
#if (BOOST_MSVC >= 1310)
|
||||
#pragma warning(disable: 4675) // resolved overload found with Koenig lookup
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
//
|
||||
// intrusive_ptr_test.cpp
|
||||
//
|
||||
// Copyright (c) 2002, 2003 Peter Dimov
|
||||
// Copyright (c) 2002-2005 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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/lightweight_test.hpp>
|
||||
#include <boost/intrusive_ptr.hpp>
|
||||
#include <boost/detail/atomic_count.hpp>
|
||||
#include <boost/config.hpp>
|
||||
#include <algorithm>
|
||||
#include <functional>
|
||||
@@ -34,7 +42,7 @@ class base
|
||||
{
|
||||
private:
|
||||
|
||||
long use_count_;
|
||||
boost::detail::atomic_count use_count_;
|
||||
|
||||
base(base const &);
|
||||
base & operator=(base const &);
|
||||
|
54
test/ip_convertible_test.cpp
Normal file
54
test/ip_convertible_test.cpp
Normal file
@@ -0,0 +1,54 @@
|
||||
#include <boost/config.hpp>
|
||||
|
||||
// wp_convertible_test.cpp
|
||||
//
|
||||
// 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/lightweight_test.hpp>
|
||||
#include <boost/intrusive_ptr.hpp>
|
||||
|
||||
//
|
||||
|
||||
struct W
|
||||
{
|
||||
};
|
||||
|
||||
void intrusive_ptr_add_ref( W* )
|
||||
{
|
||||
}
|
||||
|
||||
void intrusive_ptr_release( W* )
|
||||
{
|
||||
}
|
||||
|
||||
struct X: public virtual W
|
||||
{
|
||||
};
|
||||
|
||||
struct Y: public virtual W
|
||||
{
|
||||
};
|
||||
|
||||
struct Z: public X
|
||||
{
|
||||
};
|
||||
|
||||
int f( boost::intrusive_ptr<X> )
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
int f( boost::intrusive_ptr<Y> )
|
||||
{
|
||||
return 2;
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
BOOST_TEST( 1 == f( boost::intrusive_ptr<Z>() ) );
|
||||
return boost::report_errors();
|
||||
}
|
28
test/lw_mutex_test.cpp
Normal file
28
test/lw_mutex_test.cpp
Normal file
@@ -0,0 +1,28 @@
|
||||
//
|
||||
// lw_mutex_test.cpp
|
||||
//
|
||||
// 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/detail/lightweight_mutex.hpp>
|
||||
|
||||
// Sanity check only
|
||||
|
||||
boost::detail::lightweight_mutex m1;
|
||||
|
||||
int main()
|
||||
{
|
||||
boost::detail::lightweight_mutex::scoped_lock lock1( m1 );
|
||||
|
||||
boost::detail::lightweight_mutex m2;
|
||||
boost::detail::lightweight_mutex m3;
|
||||
|
||||
boost::detail::lightweight_mutex::scoped_lock lock2( m2 );
|
||||
boost::detail::lightweight_mutex::scoped_lock lock3( m3 );
|
||||
|
||||
return 0;
|
||||
}
|
189
test/make_shared_test.cpp
Normal file
189
test/make_shared_test.cpp
Normal file
@@ -0,0 +1,189 @@
|
||||
// make_shared_test.cpp
|
||||
//
|
||||
// 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
|
||||
|
||||
#include <boost/detail/lightweight_test.hpp>
|
||||
#include <boost/make_shared.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
#include <boost/weak_ptr.hpp>
|
||||
|
||||
class X
|
||||
{
|
||||
private:
|
||||
|
||||
X( X const & );
|
||||
X & operator=( X const & );
|
||||
|
||||
public:
|
||||
|
||||
static int instances;
|
||||
|
||||
int v;
|
||||
|
||||
explicit X( int a1 = 0, int a2 = 0, int a3 = 0, int a4 = 0, int a5 = 0, int a6 = 0, int a7 = 0, int a8 = 0, int a9 = 0 ): v( a1+a2+a3+a4+a5+a6+a7+a8+a9 )
|
||||
{
|
||||
++instances;
|
||||
}
|
||||
|
||||
~X()
|
||||
{
|
||||
--instances;
|
||||
}
|
||||
};
|
||||
|
||||
int X::instances = 0;
|
||||
|
||||
int main()
|
||||
{
|
||||
{
|
||||
boost::shared_ptr< int > pi = boost::make_shared< int >();
|
||||
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( *pi == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< int > pi = boost::make_shared< int >( 5 );
|
||||
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( *pi == 5 );
|
||||
}
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::make_shared< X >();
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 0 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::make_shared< X >( 1 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::make_shared< X >( 1, 2 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::make_shared< X >( 1, 2, 3 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::make_shared< X >( 1, 2, 3, 4 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3+4 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::make_shared< X >( 1, 2, 3, 4, 5 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3+4+5 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::make_shared< X >( 1, 2, 3, 4, 5, 6 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3+4+5+6 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::make_shared< X >( 1, 2, 3, 4, 5, 6, 7 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3+4+5+6+7 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::make_shared< X >( 1, 2, 3, 4, 5, 6, 7, 8 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > pi = boost::make_shared< X >( 1, 2, 3, 4, 5, 6, 7, 8, 9 );
|
||||
boost::weak_ptr<X> wp( pi );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( pi.get() != 0 );
|
||||
BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8+9 );
|
||||
|
||||
pi.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
}
|
||||
|
||||
return boost::report_errors();
|
||||
}
|
126
test/pointer_cast_test.cpp
Normal file
126
test/pointer_cast_test.cpp
Normal file
@@ -0,0 +1,126 @@
|
||||
//
|
||||
// pointer_cast_test.cpp - a test for boost/pointer_cast.hpp
|
||||
//
|
||||
// Copyright (c) 2005 Ion Gaztanaga
|
||||
// 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)
|
||||
//
|
||||
|
||||
#include <boost/pointer_cast.hpp>
|
||||
|
||||
#include <boost/shared_ptr.hpp>
|
||||
#include <boost/scoped_ptr.hpp>
|
||||
#include <boost/get_pointer.hpp>
|
||||
|
||||
#include <boost/detail/lightweight_test.hpp>
|
||||
|
||||
namespace
|
||||
{
|
||||
|
||||
// Let's create these inheritance relationship:
|
||||
//
|
||||
// base base2
|
||||
// | |
|
||||
// derived
|
||||
// |
|
||||
// derived_derived
|
||||
//
|
||||
|
||||
class base
|
||||
{
|
||||
public:
|
||||
virtual ~base(){}
|
||||
int filler [5];
|
||||
};
|
||||
|
||||
class base2
|
||||
{
|
||||
public:
|
||||
|
||||
virtual ~base2(){}
|
||||
int filler [5];
|
||||
};
|
||||
|
||||
class derived
|
||||
: public base, public base2
|
||||
{
|
||||
int filler [5];
|
||||
};
|
||||
|
||||
class derived_derived
|
||||
: public derived
|
||||
{
|
||||
int filler [5];
|
||||
};
|
||||
|
||||
// And now some simple check functions
|
||||
|
||||
template <class BasePtr>
|
||||
bool check_dynamic_pointer_cast(const BasePtr &ptr)
|
||||
{
|
||||
//Check that dynamic_pointer_cast versus dynamic_cast
|
||||
return
|
||||
//Correct cast with dynamic_pointer_cast
|
||||
boost::get_pointer(boost::dynamic_pointer_cast<derived>(ptr)) ==
|
||||
//Correct cast with dynamic_cast
|
||||
dynamic_cast<derived*>(boost::get_pointer(ptr))
|
||||
&&
|
||||
//Incorrect cast with dynamic_pointer_cast
|
||||
boost::get_pointer(boost::dynamic_pointer_cast<derived_derived>(ptr)) ==
|
||||
//Incorrect cast with dynamic_cast
|
||||
dynamic_cast<derived_derived*>(boost::get_pointer(ptr));
|
||||
}
|
||||
|
||||
template <class BasePtr>
|
||||
bool check_static_pointer_cast(const BasePtr &ptr)
|
||||
{
|
||||
return
|
||||
//Cast base -> derived -> base2 using static_pointer_cast
|
||||
boost::get_pointer(
|
||||
boost::static_pointer_cast<base2>(
|
||||
boost::static_pointer_cast<derived>(ptr))) ==
|
||||
//Now the same with static_cast
|
||||
static_cast<base2*>(static_cast<derived*>(boost::get_pointer(ptr)));
|
||||
}
|
||||
|
||||
template <class BasePtr>
|
||||
bool check_const_pointer_cast(const BasePtr &ptr)
|
||||
{
|
||||
return
|
||||
//Unconst and const again using const_pointer_cast
|
||||
boost::get_pointer(
|
||||
boost::const_pointer_cast<const base>
|
||||
(boost::const_pointer_cast<base>(ptr))) ==
|
||||
//Now the same with const_cast
|
||||
const_cast<const base*>(const_cast<base*>(boost::get_pointer(ptr)));
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
int main()
|
||||
{
|
||||
{
|
||||
// Try casts with shared_ptr
|
||||
|
||||
boost::shared_ptr<base> ptr(new derived);
|
||||
|
||||
BOOST_TEST( check_dynamic_pointer_cast( ptr ) );
|
||||
BOOST_TEST( check_static_pointer_cast( ptr ) );
|
||||
BOOST_TEST( check_const_pointer_cast( ptr ) );
|
||||
}
|
||||
|
||||
{
|
||||
// Try casts with raw pointer
|
||||
|
||||
boost::scoped_ptr<base> ptr(new derived);
|
||||
|
||||
BOOST_TEST( check_dynamic_pointer_cast( ptr.get() ) );
|
||||
BOOST_TEST( check_static_pointer_cast( ptr.get() ) );
|
||||
BOOST_TEST( check_const_pointer_cast( ptr.get() ) );
|
||||
}
|
||||
|
||||
return boost::report_errors();
|
||||
}
|
74
test/pointer_to_other_test.cpp
Normal file
74
test/pointer_to_other_test.cpp
Normal file
@@ -0,0 +1,74 @@
|
||||
//
|
||||
// pointer_to_other_test.cpp - a test for boost/pointer_to_other.hpp
|
||||
//
|
||||
// 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)
|
||||
//
|
||||
|
||||
#include <boost/pointer_to_other.hpp>
|
||||
|
||||
#include <boost/shared_ptr.hpp>
|
||||
#include <boost/shared_array.hpp>
|
||||
#include <boost/scoped_ptr.hpp>
|
||||
#include <boost/scoped_array.hpp>
|
||||
#include <boost/intrusive_ptr.hpp>
|
||||
|
||||
#include <memory>
|
||||
|
||||
template<class T, class U> void assert_same_type( T** pt = 0, U** pu = 0 )
|
||||
{
|
||||
pt = pu;
|
||||
}
|
||||
|
||||
struct X;
|
||||
struct Y;
|
||||
|
||||
int main()
|
||||
{
|
||||
// shared_ptr
|
||||
|
||||
assert_same_type< boost::pointer_to_other< boost::shared_ptr<X>, Y >::type, boost::shared_ptr<Y> >();
|
||||
assert_same_type< boost::pointer_to_other< boost::shared_ptr<X>, void >::type, boost::shared_ptr<void> >();
|
||||
assert_same_type< boost::pointer_to_other< boost::shared_ptr<void>, Y >::type, boost::shared_ptr<Y> >();
|
||||
|
||||
// shared_array
|
||||
|
||||
assert_same_type< boost::pointer_to_other< boost::shared_array<X>, Y >::type, boost::shared_array<Y> >();
|
||||
assert_same_type< boost::pointer_to_other< boost::shared_array<X>, void >::type, boost::shared_array<void> >();
|
||||
assert_same_type< boost::pointer_to_other< boost::shared_array<void>, Y >::type, boost::shared_array<Y> >();
|
||||
|
||||
// scoped_ptr
|
||||
|
||||
assert_same_type< boost::pointer_to_other< boost::scoped_ptr<X>, Y >::type, boost::scoped_ptr<Y> >();
|
||||
assert_same_type< boost::pointer_to_other< boost::scoped_ptr<X>, void >::type, boost::scoped_ptr<void> >();
|
||||
assert_same_type< boost::pointer_to_other< boost::scoped_ptr<void>, Y >::type, boost::scoped_ptr<Y> >();
|
||||
|
||||
// scoped_array
|
||||
|
||||
assert_same_type< boost::pointer_to_other< boost::scoped_array<X>, Y >::type, boost::scoped_array<Y> >();
|
||||
assert_same_type< boost::pointer_to_other< boost::scoped_array<X>, void >::type, boost::scoped_array<void> >();
|
||||
assert_same_type< boost::pointer_to_other< boost::scoped_array<void>, Y >::type, boost::scoped_array<Y> >();
|
||||
|
||||
// intrusive_ptr
|
||||
|
||||
assert_same_type< boost::pointer_to_other< boost::intrusive_ptr<X>, Y >::type, boost::intrusive_ptr<Y> >();
|
||||
assert_same_type< boost::pointer_to_other< boost::intrusive_ptr<X>, void >::type, boost::intrusive_ptr<void> >();
|
||||
assert_same_type< boost::pointer_to_other< boost::intrusive_ptr<void>, Y >::type, boost::intrusive_ptr<Y> >();
|
||||
|
||||
// auto_ptr
|
||||
|
||||
assert_same_type< boost::pointer_to_other< std::auto_ptr<X>, Y >::type, std::auto_ptr<Y> >();
|
||||
assert_same_type< boost::pointer_to_other< std::auto_ptr<X>, void >::type, std::auto_ptr<void> >();
|
||||
assert_same_type< boost::pointer_to_other< std::auto_ptr<void>, Y >::type, std::auto_ptr<Y> >();
|
||||
|
||||
// raw pointer
|
||||
|
||||
assert_same_type< boost::pointer_to_other< X *, Y >::type, Y * >();
|
||||
assert_same_type< boost::pointer_to_other< X *, void >::type, void * >();
|
||||
assert_same_type< boost::pointer_to_other< void *, Y >::type, Y * >();
|
||||
|
||||
return 0;
|
||||
}
|
27
test/scoped_array_eq_fail.cpp
Normal file
27
test/scoped_array_eq_fail.cpp
Normal file
@@ -0,0 +1,27 @@
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#if defined(BOOST_MSVC)
|
||||
#pragma warning(disable: 4786) // identifier truncated in debug info
|
||||
#pragma warning(disable: 4710) // function not inlined
|
||||
#pragma warning(disable: 4711) // function selected for automatic inline expansion
|
||||
#pragma warning(disable: 4514) // unreferenced inline removed
|
||||
#endif
|
||||
|
||||
//
|
||||
// scoped_array_eq_fail.cpp - a negative test for "p == q"
|
||||
//
|
||||
// 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/scoped_array.hpp>
|
||||
|
||||
int main()
|
||||
{
|
||||
boost::scoped_array<int> p, q;
|
||||
p == q; // must fail
|
||||
return 0;
|
||||
}
|
27
test/scoped_ptr_eq_fail.cpp
Normal file
27
test/scoped_ptr_eq_fail.cpp
Normal file
@@ -0,0 +1,27 @@
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#if defined(BOOST_MSVC)
|
||||
#pragma warning(disable: 4786) // identifier truncated in debug info
|
||||
#pragma warning(disable: 4710) // function not inlined
|
||||
#pragma warning(disable: 4711) // function selected for automatic inline expansion
|
||||
#pragma warning(disable: 4514) // unreferenced inline removed
|
||||
#endif
|
||||
|
||||
//
|
||||
// scoped_ptr_eq_fail.cpp - a negative test for "p == q"
|
||||
//
|
||||
// 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/scoped_ptr.hpp>
|
||||
|
||||
int main()
|
||||
{
|
||||
boost::scoped_ptr<int> p, q;
|
||||
p == q; // must fail
|
||||
return 0;
|
||||
}
|
@@ -1,4 +1,6 @@
|
||||
#if defined(_MSC_VER) && !defined(__ICL) && !defined(__COMO__)
|
||||
#include <boost/config.hpp>
|
||||
|
||||
#if defined(BOOST_MSVC)
|
||||
#pragma warning(disable: 4786) // identifier truncated in debug info
|
||||
#pragma warning(disable: 4710) // function not inlined
|
||||
#pragma warning(disable: 4711) // function selected for automatic inline expansion
|
||||
@@ -10,10 +12,9 @@
|
||||
//
|
||||
// Copyright (c) 2002, 2003 Peter Dimov
|
||||
//
|
||||
// Permission to copy, use, modify, sell and distribute this software
|
||||
// is granted provided this copyright notice appears in all copies.
|
||||
// This software is provided "as is" without express or implied
|
||||
// warranty, and with no claim as to its suitability for any purpose.
|
||||
// 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)
|
||||
//
|
||||
|
||||
|
||||
@@ -67,18 +68,20 @@ void test()
|
||||
}
|
||||
|
||||
void test2();
|
||||
void test3();
|
||||
|
||||
int main()
|
||||
{
|
||||
test();
|
||||
test2();
|
||||
test3();
|
||||
return boost::report_errors();
|
||||
}
|
||||
|
||||
// virtual inheritance from Y to stress the implementation
|
||||
// (prevents Y* -> impl* casts)
|
||||
// virtual inheritance to stress the implementation
|
||||
// (prevents Y* -> impl*, enable_shared_from_this<impl>* -> impl* casts)
|
||||
|
||||
class impl: public X, public virtual Y, public boost::enable_shared_from_this<impl>
|
||||
class impl: public X, public virtual Y, public virtual boost::enable_shared_from_this<impl>
|
||||
{
|
||||
public:
|
||||
|
||||
@@ -110,3 +113,42 @@ void test2()
|
||||
{
|
||||
boost::shared_ptr<Y> pi(static_cast<impl2*>(0));
|
||||
}
|
||||
|
||||
//
|
||||
|
||||
struct V: public boost::enable_shared_from_this<V>
|
||||
{
|
||||
};
|
||||
|
||||
void test3()
|
||||
{
|
||||
boost::shared_ptr<V> p(new V);
|
||||
|
||||
boost::shared_ptr<V> q = p->shared_from_this();
|
||||
BOOST_TEST(p == q);
|
||||
BOOST_TEST(!(p < q) && !(q < p));
|
||||
|
||||
V v2(*p);
|
||||
|
||||
try
|
||||
{
|
||||
boost::shared_ptr<V> r = v2.shared_from_this();
|
||||
BOOST_TEST( p < r || r < p );
|
||||
BOOST_TEST( r.get() == &v2 );
|
||||
}
|
||||
catch(boost::bad_weak_ptr const &)
|
||||
{
|
||||
}
|
||||
|
||||
try
|
||||
{
|
||||
*p = V();
|
||||
boost::shared_ptr<V> r = p->shared_from_this();
|
||||
BOOST_TEST(p == r);
|
||||
BOOST_TEST(!(p < r) && !(r < p));
|
||||
}
|
||||
catch(boost::bad_weak_ptr const &)
|
||||
{
|
||||
BOOST_ERROR("p->shared_from_this() threw bad_weak_ptr after *p = V()");
|
||||
}
|
||||
}
|
||||
|
146
test/shared_ptr_alias_test.cpp
Normal file
146
test/shared_ptr_alias_test.cpp
Normal file
@@ -0,0 +1,146 @@
|
||||
#include <boost/config.hpp>
|
||||
|
||||
// shared_ptr_alias_test.cpp
|
||||
//
|
||||
// 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/lightweight_test.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
#include <memory>
|
||||
#include <cstddef>
|
||||
|
||||
//
|
||||
|
||||
class incomplete;
|
||||
|
||||
struct X
|
||||
{
|
||||
int v_;
|
||||
|
||||
explicit X( int v ): v_( v )
|
||||
{
|
||||
}
|
||||
|
||||
~X()
|
||||
{
|
||||
v_ = 0;
|
||||
}
|
||||
};
|
||||
|
||||
int main()
|
||||
{
|
||||
{
|
||||
int m = 0;
|
||||
boost::shared_ptr< int > p;
|
||||
boost::shared_ptr< int > p2( p, &m );
|
||||
|
||||
BOOST_TEST( p2.get() == &m );
|
||||
BOOST_TEST( p2? true: false );
|
||||
BOOST_TEST( !!p2 );
|
||||
BOOST_TEST( p2.use_count() == p.use_count() );
|
||||
BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
|
||||
|
||||
p2.reset( p, 0 );
|
||||
|
||||
BOOST_TEST( p2.get() == 0 );
|
||||
BOOST_TEST( p2? false: true );
|
||||
BOOST_TEST( !p2 );
|
||||
BOOST_TEST( p2.use_count() == p.use_count() );
|
||||
BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
|
||||
}
|
||||
|
||||
{
|
||||
int m = 0;
|
||||
boost::shared_ptr< int > p( new int );
|
||||
boost::shared_ptr< int const > p2( p, &m );
|
||||
|
||||
BOOST_TEST( p2.get() == &m );
|
||||
BOOST_TEST( p2? true: false );
|
||||
BOOST_TEST( !!p2 );
|
||||
BOOST_TEST( p2.use_count() == p.use_count() );
|
||||
BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
|
||||
|
||||
boost::shared_ptr< int volatile > p3;
|
||||
p2.reset( p3, 0 );
|
||||
|
||||
BOOST_TEST( p2.get() == 0 );
|
||||
BOOST_TEST( p2? false: true );
|
||||
BOOST_TEST( !p2 );
|
||||
BOOST_TEST( p2.use_count() == p3.use_count() );
|
||||
BOOST_TEST( !( p3 < p2 ) && !( p2 < p3 ) );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< int > p( new int );
|
||||
boost::shared_ptr< void const > p2( p, 0 );
|
||||
|
||||
BOOST_TEST( p2.get() == 0 );
|
||||
BOOST_TEST( p2? false: true );
|
||||
BOOST_TEST( !p2 );
|
||||
BOOST_TEST( p2.use_count() == p.use_count() );
|
||||
BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
|
||||
|
||||
int m = 0;
|
||||
boost::shared_ptr< void volatile > p3;
|
||||
|
||||
p2.reset( p3, &m );
|
||||
|
||||
BOOST_TEST( p2.get() == &m );
|
||||
BOOST_TEST( p2? true: false );
|
||||
BOOST_TEST( !!p2 );
|
||||
BOOST_TEST( p2.use_count() == p3.use_count() );
|
||||
BOOST_TEST( !( p3 < p2 ) && !( p2 < p3 ) );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< incomplete > p;
|
||||
boost::shared_ptr< incomplete > p2( p, 0 );
|
||||
|
||||
BOOST_TEST( p2.get() == 0 );
|
||||
BOOST_TEST( p2? false: true );
|
||||
BOOST_TEST( !p2 );
|
||||
BOOST_TEST( p2.use_count() == p.use_count() );
|
||||
BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
|
||||
|
||||
p2.reset( p, 0 );
|
||||
|
||||
BOOST_TEST( p2.get() == 0 );
|
||||
BOOST_TEST( p2? false: true );
|
||||
BOOST_TEST( !p2 );
|
||||
BOOST_TEST( p2.use_count() == p.use_count() );
|
||||
BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
|
||||
}
|
||||
|
||||
{
|
||||
boost::shared_ptr< X > p( new X( 5 ) );
|
||||
boost::shared_ptr< int const > p2( p, &p->v_ );
|
||||
|
||||
BOOST_TEST( p2.get() == &p->v_ );
|
||||
BOOST_TEST( p2? true: false );
|
||||
BOOST_TEST( !!p2 );
|
||||
BOOST_TEST( p2.use_count() == p.use_count() );
|
||||
BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
|
||||
|
||||
p.reset();
|
||||
BOOST_TEST( *p2 == 5 );
|
||||
|
||||
boost::shared_ptr< X const > p3( new X( 8 ) );
|
||||
p2.reset( p3, &p3->v_ );
|
||||
|
||||
BOOST_TEST( p2.get() == &p3->v_ );
|
||||
BOOST_TEST( p2? true: false );
|
||||
BOOST_TEST( !!p2 );
|
||||
BOOST_TEST( p2.use_count() == p3.use_count() );
|
||||
BOOST_TEST( !( p3 < p2 ) && !( p2 < p3 ) );
|
||||
|
||||
p3.reset();
|
||||
BOOST_TEST( *p2 == 8 );
|
||||
}
|
||||
|
||||
return boost::report_errors();
|
||||
}
|
224
test/shared_ptr_alloc2_test.cpp
Normal file
224
test/shared_ptr_alloc2_test.cpp
Normal file
@@ -0,0 +1,224 @@
|
||||
#include <boost/config.hpp>
|
||||
|
||||
// shared_ptr_alloc2_test.cpp
|
||||
//
|
||||
// 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)
|
||||
|
||||
|
||||
#include <boost/detail/lightweight_test.hpp>
|
||||
#include <boost/shared_ptr.hpp>
|
||||
#include <memory>
|
||||
#include <cstddef>
|
||||
|
||||
// test_allocator
|
||||
|
||||
struct test_allocator_base
|
||||
{
|
||||
int id_;
|
||||
|
||||
static int last_global_id_;
|
||||
static int count_;
|
||||
|
||||
explicit test_allocator_base( int id ): id_( id )
|
||||
{
|
||||
}
|
||||
};
|
||||
|
||||
int test_allocator_base::last_global_id_ = 0;
|
||||
int test_allocator_base::count_ = 0;
|
||||
|
||||
template<class T> class test_allocator: public test_allocator_base
|
||||
{
|
||||
public:
|
||||
|
||||
typedef T * pointer;
|
||||
typedef T const * const_pointer;
|
||||
typedef T & reference;
|
||||
typedef T const & const_reference;
|
||||
typedef T value_type;
|
||||
typedef std::size_t size_type;
|
||||
typedef std::ptrdiff_t difference_type;
|
||||
|
||||
private:
|
||||
|
||||
static T * last_pointer_;
|
||||
static std::size_t last_n_;
|
||||
static int last_id_;
|
||||
|
||||
public:
|
||||
|
||||
template<class U> struct rebind
|
||||
{
|
||||
typedef test_allocator<U> other;
|
||||
};
|
||||
|
||||
pointer address( reference r ) const
|
||||
{
|
||||
return &r;
|
||||
}
|
||||
|
||||
const_pointer address( const_reference s ) const
|
||||
{
|
||||
return &s;
|
||||
}
|
||||
|
||||
explicit test_allocator( int id = 0 ): test_allocator_base( id )
|
||||
{
|
||||
}
|
||||
|
||||
template<class U> test_allocator( test_allocator<U> const & r ): test_allocator_base( r )
|
||||
{
|
||||
}
|
||||
|
||||
template<class U> test_allocator & operator=( test_allocator<U> const & r )
|
||||
{
|
||||
test_allocator_base::operator=( r );
|
||||
return *this;
|
||||
}
|
||||
|
||||
void deallocate( pointer p, size_type n )
|
||||
{
|
||||
BOOST_TEST( p == last_pointer_ );
|
||||
BOOST_TEST( n == last_n_ );
|
||||
BOOST_TEST( id_ == last_id_ );
|
||||
|
||||
--count_;
|
||||
|
||||
::operator delete( p );
|
||||
}
|
||||
|
||||
pointer allocate( size_type n, void const * )
|
||||
{
|
||||
T * p = static_cast< T* >( ::operator new( n * sizeof( T ) ) );
|
||||
|
||||
last_pointer_ = p;
|
||||
last_n_ = n;
|
||||
last_id_ = id_;
|
||||
|
||||
last_global_id_ = id_;
|
||||
++count_;
|
||||
|
||||
return p;
|
||||
}
|
||||
|
||||
void construct( pointer p, T const & t )
|
||||
{
|
||||
new( p ) T( t );
|
||||
}
|
||||
|
||||
void destroy( pointer p )
|
||||
{
|
||||
p->~T();
|
||||
}
|
||||
|
||||
size_type max_size() const
|
||||
{
|
||||
return size_type( -1 ) / sizeof( T );
|
||||
}
|
||||
};
|
||||
|
||||
template<class T> T * test_allocator<T>::last_pointer_ = 0;
|
||||
template<class T> std::size_t test_allocator<T>::last_n_ = 0;
|
||||
template<class T> int test_allocator<T>::last_id_ = 0;
|
||||
|
||||
template<class T, class U> inline bool operator==( test_allocator<T> const & a1, test_allocator<U> const & a2 )
|
||||
{
|
||||
return a1.id_ == a2.id_;
|
||||
}
|
||||
|
||||
template<class T, class U> inline bool operator!=( test_allocator<T> const & a1, test_allocator<U> const & a2 )
|
||||
{
|
||||
return a1.id_ != a2.id_;
|
||||
}
|
||||
|
||||
template<> class test_allocator<void>: public test_allocator_base
|
||||
{
|
||||
public:
|
||||
|
||||
typedef void * pointer;
|
||||
typedef void const * const_pointer;
|
||||
typedef void value_type;
|
||||
|
||||
template<class U> struct rebind
|
||||
{
|
||||
typedef test_allocator<U> other;
|
||||
};
|
||||
|
||||
explicit test_allocator( int id = 0 ): test_allocator_base( id )
|
||||
{
|
||||
}
|
||||
|
||||
template<class U> test_allocator( test_allocator<U> const & r ): test_allocator_base( r )
|
||||
{
|
||||
}
|
||||
|
||||
template<class U> test_allocator & operator=( test_allocator<U> const & r )
|
||||
{
|
||||
test_allocator_base::operator=( r );
|
||||
return *this;
|
||||
}
|
||||
};
|
||||
|
||||
//
|
||||
|
||||
struct X
|
||||
{
|
||||
static int instances;
|
||||
|
||||
X()
|
||||
{
|
||||
++instances;
|
||||
}
|
||||
|
||||
~X()
|
||||
{
|
||||
--instances;
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
X( X const & );
|
||||
X & operator=( X const & );
|
||||
};
|
||||
|
||||
int X::instances = 0;
|
||||
|
||||
int main()
|
||||
{
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
boost::shared_ptr<void> pv( new X, boost::checked_deleter<X>(), std::allocator<X>() );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
pv.reset( new X, boost::checked_deleter<X>(), test_allocator<float>( 42 ) );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
BOOST_TEST( test_allocator_base::last_global_id_ == 42 );
|
||||
BOOST_TEST( test_allocator_base::count_ > 0 );
|
||||
|
||||
pv.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
BOOST_TEST( test_allocator_base::count_ == 0 );
|
||||
|
||||
pv.reset( new X, boost::checked_deleter<X>(), test_allocator<void>( 43 ) );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
BOOST_TEST( test_allocator_base::last_global_id_ == 43 );
|
||||
|
||||
pv.reset( new X, boost::checked_deleter<X>(), std::allocator<void>() );
|
||||
|
||||
BOOST_TEST( X::instances == 1 );
|
||||
|
||||
pv.reset();
|
||||
|
||||
BOOST_TEST( X::instances == 0 );
|
||||
|
||||
return boost::report_errors();
|
||||
}
|
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user