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/* ****************************************************************************
* eID Middleware Project.
* Copyright (C) 2008-2009 FedICT.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version
* 3.0 as published by the Free Software Foundation.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, see
* http://www.gnu.org/licenses/.
**************************************************************************** */
#include "Mutex.h"
#ifndef TRUE
#define TRUE true
#endif
#ifndef FALSE
#define FALSE false
#endif
#ifndef WIN32
#include "Thread.h"
#endif
namespace eIDMW
{
CMutex::CMutex()
{
#ifdef WIN32
InitializeCriticalSection(&m_Mutex);
#else
pthread_mutex_init(&m_Mutex, NULL);
m_MutexLockcount = 0;
m_MutexOwner = 0;
#endif
}
CMutex::~CMutex()
{
#ifdef WIN32
EnterCriticalSection(&m_Mutex);
LeaveCriticalSection(&m_Mutex);
DeleteCriticalSection(&m_Mutex);
#else
pthread_mutex_destroy(&m_Mutex);
#endif
}
void CMutex::Lock()
{
#ifdef WIN32
EnterCriticalSection(&m_Mutex);
#else
if (pthread_mutex_trylock(&m_Mutex))
{
if (! pthread_equal( m_MutexOwner, pthread_self() ) )
{
pthread_mutex_lock(&m_Mutex);
m_MutexOwner = pthread_self();
m_MutexLockcount++;
}
else
{
m_MutexLockcount++;
}
}
else
{
m_MutexOwner = pthread_self();
m_MutexLockcount++;
}
#endif
}
void CMutex::Unlock()
{
#ifdef WIN32
LeaveCriticalSection(&m_Mutex);
#else
if ( pthread_equal( m_MutexOwner, pthread_self() ) )
{
if( m_MutexLockcount > 1 )
{
m_MutexLockcount--;
}
else
{
m_MutexOwner = 0;
m_MutexLockcount--;
pthread_mutex_unlock(&m_Mutex);
}
}
#endif
}
}
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