1//===- llvm/Support/Win32/Mutex.inc - Win32 Mutex Implementation -*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file implements the Win32 specific (non-pthread) Mutex class. 11// 12//===----------------------------------------------------------------------===// 13 14//===----------------------------------------------------------------------===// 15//=== WARNING: Implementation here must contain only generic Win32 code that 16//=== is guaranteed to work on *all* Win32 variants. 17//===----------------------------------------------------------------------===// 18 19#include "Windows.h" 20#include "llvm/Support/Mutex.h" 21 22namespace llvm { 23using namespace sys; 24 25MutexImpl::MutexImpl(bool /*recursive*/) 26{ 27 data_ = new CRITICAL_SECTION; 28 InitializeCriticalSection((LPCRITICAL_SECTION)data_); 29} 30 31MutexImpl::~MutexImpl() 32{ 33 DeleteCriticalSection((LPCRITICAL_SECTION)data_); 34 delete (LPCRITICAL_SECTION)data_; 35 data_ = 0; 36} 37 38bool 39MutexImpl::acquire() 40{ 41 EnterCriticalSection((LPCRITICAL_SECTION)data_); 42 return true; 43} 44 45bool 46MutexImpl::release() 47{ 48 LeaveCriticalSection((LPCRITICAL_SECTION)data_); 49 return true; 50} 51 52bool 53MutexImpl::tryacquire() 54{ 55 return TryEnterCriticalSection((LPCRITICAL_SECTION)data_); 56} 57 58} 59