OCCT

// Created on: 2006-04-13
// Created by: Andrey BETENEV
// Copyright (c) 2006-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#include <Standard_Mutex.hxx>

//=============================================
// Standard_Mutex::Standard_Mutex
//=============================================

Standard_Mutex::Standard_Mutex()
{
#if (defined(_WIN32) || defined(__WIN32__))
  InitializeCriticalSection(&myMutex);
#else
  pthread_mutexattr_t anAttr;
  pthread_mutexattr_init(&anAttr);
  pthread_mutexattr_settype(&anAttr, PTHREAD_MUTEX_RECURSIVE);
  pthread_mutex_init(&myMutex, &anAttr);
  pthread_mutexattr_destroy(&anAttr);
#endif
}

//=============================================
// Standard_Mutex::~Standard_Mutex
//=============================================

Standard_Mutex::~Standard_Mutex()
{
#if (defined(_WIN32) || defined(__WIN32__))
  DeleteCriticalSection(&myMutex);
#else
  pthread_mutex_destroy(&myMutex);
#endif
}

//=============================================
// Standard_Mutex::Lock
//=============================================

void Standard_Mutex::Lock()
{
#if (defined(_WIN32) || defined(__WIN32__))
  EnterCriticalSection(&myMutex);
#else
  pthread_mutex_lock(&myMutex);
#endif
}

//=============================================
// Standard_Mutex::TryLock
//=============================================

bool Standard_Mutex::TryLock()
{
#if (defined(_WIN32) || defined(__WIN32__))
  return (TryEnterCriticalSection(&myMutex) != 0);
#else
  return (pthread_mutex_trylock(&myMutex) != EBUSY);
#endif
}

//=============================================
// Standard_Mutex::DestroyCallback
//=============================================

void Standard_Mutex::DestroyCallback()
{
  UnregisterCallback();
  Unlock();
}