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