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A binary compatible 'null' lightweight_mutex for Win32 added.

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[SVN r18916]
This commit is contained in:
Peter Dimov
2003-07-02 11:54:40 +00:00
parent 6dbec7621d
commit dcdbaf1e57
3 changed files with 77 additions and 5 deletions
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16
include/boost/detail/lightweight_mutex.hpp
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@ -8,7 +8,7 @@
//
// 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.
@ -64,15 +64,23 @@
// 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>
#if (defined(WIN32) || defined(_WIN32) || defined(__WIN32__)) && !defined(BOOST_LWM_USE_CRITICAL_SECTION) && !defined(BOOST_LWM_USE_PTHREADS)
# define BOOST_LWM_WIN32
#endif
#if !defined(BOOST_HAS_THREADS)
# if defined(BOOST_LWM_WIN32)
# include <boost/detail/lwm_win32_nt.hpp>
# else
# include <boost/detail/lwm_nop.hpp>
# endif
#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)
# include <boost/detail/lwm_pthreads.hpp>
#elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
#elif defined(BOOST_LWM_WIN32)
# include <boost/detail/lwm_win32.hpp>
#elif defined(BOOST_LWM_USE_SPINLOCK) && defined(__sgi)
# include <boost/detail/lwm_irix.hpp>

64
include/boost/detail/lwm_win32_nt.hpp Normal file
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@ -0,0 +1,64 @@
#ifndef BOOST_DETAIL_LWM_WIN32_NT_HPP_INCLUDED
#define BOOST_DETAIL_LWM_WIN32_NT_HPP_INCLUDED
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
//
// boost/detail/lwm_win32_nt.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.
//
// "No threads" version of lwm_win32.hpp; binary compatible but no-op.
//
namespace boost
{
namespace detail
{
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:
scoped_lock(scoped_lock const &);
scoped_lock & operator=(scoped_lock const &);
public:
explicit scoped_lock(lightweight_mutex &)
{
}
};
};
} // namespace detail
} // namespace boost
#endif // #ifndef BOOST_DETAIL_LWM_WIN32_NT_HPP_INCLUDED

2
include/boost/detail/shared_count.hpp
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@ -187,7 +187,7 @@ private:
long use_count_;
long weak_count_;
#if defined(BOOST_HAS_THREADS)
#if defined(BOOST_HAS_THREADS) || defined(BOOST_LWM_WIN32)
mutable mutex_type mtx_;
#endif
};