MutexImplWin32.cpp

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// this is for emacs file handling -*- mode: c++; indent-tabs-mode: nil -*-
//----------------------------------------------------------------------
//----------------------------------------------------------------------

#include "icl_core_thread/Common.h"
#include "icl_core_thread/MutexImplWin32.h"

namespace icl_core {
namespace thread {

MutexImplWin32::MutexImplWin32()
{
  m_mutex = ::CreateMutex(NULL, false, NULL);
}

MutexImplWin32::~MutexImplWin32()
{
  if (m_mutex != 0)
  {
    ::CloseHandle(m_mutex);
  }
}

bool MutexImplWin32::lock()
{
  return ::WaitForSingleObject(m_mutex, INFINITE) == WAIT_OBJECT_0;
}

bool MutexImplWin32::lock(const TimeStamp& timeout)
{
  return lock(impl::getRelativeTimeout(timeout));
}

bool MutexImplWin32::lock(const TimeSpan& timeout)
{
  return ::WaitForSingleObject(m_mutex, DWORD(timeout.toMSec())) == WAIT_OBJECT_0;
}

bool MutexImplWin32::tryLock()
{
  return ::WaitForSingleObject(m_mutex, 0) == WAIT_OBJECT_0;
}

void MutexImplWin32::unlock()
{
  ::ReleaseMutex(m_mutex);
}

}
}