mirror of
https://github.com/boostorg/smart_ptr.git
synced 2025-10-30 23:31:42 +01:00
105 lines
2.1 KiB
C++
105 lines
2.1 KiB
C++
#ifndef BOOST_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
|
|
#define BOOST_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
|
|
|
|
// MS compatible compilers support #pragma once
|
|
|
|
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
|
|
# pragma once
|
|
#endif
|
|
|
|
//
|
|
// boost/detail/lwm_win32_cs.hpp
|
|
//
|
|
// Copyright (c) 2002, 2003 Peter Dimov
|
|
//
|
|
// Distributed under the Boost Software License, Version 1.0. (See
|
|
// accompanying file LICENSE_1_0.txt or copy at
|
|
// http://www.boost.org/LICENSE_1_0.txt)
|
|
//
|
|
|
|
#ifdef BOOST_USE_WINDOWS_H
|
|
# include <windows.h>
|
|
#endif
|
|
|
|
namespace boost
|
|
{
|
|
|
|
namespace detail
|
|
{
|
|
|
|
#ifndef BOOST_USE_WINDOWS_H
|
|
|
|
struct CRITICAL_SECTION
|
|
{
|
|
struct critical_section_debug * DebugInfo;
|
|
long LockCount;
|
|
long RecursionCount;
|
|
void * OwningThread;
|
|
void * LockSemaphore;
|
|
#if defined(_WIN64)
|
|
unsigned __int64 SpinCount;
|
|
#else
|
|
unsigned long SpinCount;
|
|
#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 *);
|
|
|
|
#endif // #ifndef BOOST_USE_WINDOWS_H
|
|
|
|
class lightweight_mutex
|
|
{
|
|
private:
|
|
|
|
CRITICAL_SECTION cs_;
|
|
|
|
lightweight_mutex(lightweight_mutex const &);
|
|
lightweight_mutex & operator=(lightweight_mutex const &);
|
|
|
|
public:
|
|
|
|
lightweight_mutex()
|
|
{
|
|
InitializeCriticalSection(&cs_);
|
|
}
|
|
|
|
~lightweight_mutex()
|
|
{
|
|
DeleteCriticalSection(&cs_);
|
|
}
|
|
|
|
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)
|
|
{
|
|
EnterCriticalSection(&m_.cs_);
|
|
}
|
|
|
|
~scoped_lock()
|
|
{
|
|
LeaveCriticalSection(&m_.cs_);
|
|
}
|
|
};
|
|
};
|
|
|
|
} // namespace detail
|
|
|
|
} // namespace boost
|
|
|
|
#endif // #ifndef BOOST_DETAIL_LWM_WIN32_CS_HPP_INCLUDED
|