You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and dots ('.'), can be up to 35 characters long. Letters must be lowercase.
109 lines
2.2 KiB
109 lines
2.2 KiB
// |
|
// boost/signals2/detail/lwm_win32_cs.hpp |
|
// |
|
// Copyright (c) 2002, 2003 Peter Dimov |
|
// Copyright (c) 2008 Frank Mori Hess |
|
// |
|
// Distributed under the Boost Software License, Version 1.0. (See |
|
// accompanying file LICENSE_1_0.txt or copy at |
|
// http://www.boost.org/LICENSE_1_0.txt) |
|
// |
|
|
|
#ifndef BOOST_SIGNALS2_LWM_WIN32_CS_HPP |
|
#define BOOST_SIGNALS2_LWM_WIN32_CS_HPP |
|
|
|
// MS compatible compilers support #pragma once |
|
|
|
#if defined(_MSC_VER) && (_MSC_VER >= 1020) |
|
# pragma once |
|
#endif |
|
|
|
#include <boost/assert.hpp> |
|
|
|
#ifdef BOOST_USE_WINDOWS_H |
|
# include <windows.h> |
|
#endif |
|
|
|
namespace boost |
|
{ |
|
|
|
namespace signals2 |
|
{ |
|
|
|
#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) bool __stdcall TryEnterCriticalSection(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 |
|
|
|
class mutex |
|
{ |
|
private: |
|
|
|
critical_section cs_; |
|
|
|
mutex(mutex const &); |
|
mutex & operator=(mutex const &); |
|
|
|
public: |
|
|
|
mutex() |
|
{ |
|
InitializeCriticalSection(&cs_); |
|
} |
|
|
|
~mutex() |
|
{ |
|
DeleteCriticalSection(&cs_); |
|
} |
|
|
|
void lock() |
|
{ |
|
EnterCriticalSection(&cs_); |
|
} |
|
// TryEnterCriticalSection only exists on Windows NT 4.0 and later |
|
#if (defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0400)) |
|
bool try_lock() |
|
{ |
|
return TryEnterCriticalSection(&cs_) != 0; |
|
} |
|
#else |
|
bool try_lock() |
|
{ |
|
BOOST_ASSERT(false); |
|
return false; |
|
} |
|
#endif |
|
void unlock() |
|
{ |
|
LeaveCriticalSection(&cs_); |
|
} |
|
}; |
|
|
|
} // namespace signals2 |
|
|
|
} // namespace boost |
|
|
|
#endif // #ifndef BOOST_SIGNALS2_LWM_WIN32_CS_HPP
|
|
|