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//===- llvm/System/Win32/Mutex.inc - Win32 Mutex Implementation -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file 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 "Windows.h"
#include "llvm/Support/Mutex.h"
namespace llvm {
using namespace sys;
MutexImpl::MutexImpl(bool /*recursive*/)
{
data_ = new CRITICAL_SECTION;
InitializeCriticalSection((LPCRITICAL_SECTION)data_);
}
MutexImpl::~MutexImpl()
{
DeleteCriticalSection((LPCRITICAL_SECTION)data_);
delete (LPCRITICAL_SECTION)data_;
data_ = 0;
}
bool
MutexImpl::acquire()
{
EnterCriticalSection((LPCRITICAL_SECTION)data_);
return true;
}
bool
MutexImpl::release()
{
LeaveCriticalSection((LPCRITICAL_SECTION)data_);
return true;
}
bool
MutexImpl::tryacquire()
{
return TryEnterCriticalSection((LPCRITICAL_SECTION)data_);
}
}
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