llvm-6502/lib/System/Win32/Mutex.inc
2005-07-13 02:58:04 +00:00

59 lines
1.4 KiB
C++

//===- llvm/System/Win32/Mutex.inc - Win32 Mutex Implementation -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Jeff Cohen and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the Win32 specific (non-pthread) Mutex class.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
//=== WARNING: Implementation here must contain only generic Win32 code that
//=== is guaranteed to work on *all* Win32 variants.
//===----------------------------------------------------------------------===//
#include "Win32.h"
#include "llvm/System/Mutex.h"
namespace llvm {
using namespace sys;
Mutex::Mutex(bool /*recursive*/)
{
data_ = new CRITICAL_SECTION;
InitializeCriticalSection((LPCRITICAL_SECTION)data_);
}
Mutex::~Mutex()
{
DeleteCriticalSection((LPCRITICAL_SECTION)data_);
delete (LPCRITICAL_SECTION)data_;
data_ = 0;
}
bool
Mutex::acquire()
{
EnterCriticalSection((LPCRITICAL_SECTION)data_);
return true;
}
bool
Mutex::release()
{
LeaveCriticalSection((LPCRITICAL_SECTION)data_);
return true;
}
bool
Mutex::tryacquire()
{
return TryEnterCriticalSection((LPCRITICAL_SECTION)data_);
}
}