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/* Copyright 2015 Pierre Ossman for Cendio AB
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef WIN32
#include <windows.h>
#else
#include <pthread.h>
#endif
#include <rdr/Exception.h>
#include <os/Mutex.h>
using namespace os;
Mutex::Mutex()
{
#ifdef WIN32
systemMutex = new CRITICAL_SECTION;
InitializeCriticalSection((CRITICAL_SECTION*)systemMutex);
#else
int ret;
systemMutex = new pthread_mutex_t;
ret = pthread_mutex_init((pthread_mutex_t*)systemMutex, nullptr);
if (ret != 0)
throw rdr::PosixException("Failed to create mutex", ret);
#endif
}
Mutex::~Mutex()
{
#ifdef WIN32
DeleteCriticalSection((CRITICAL_SECTION*)systemMutex);
delete (CRITICAL_SECTION*)systemMutex;
#else
pthread_mutex_destroy((pthread_mutex_t*)systemMutex);
delete (pthread_mutex_t*)systemMutex;
#endif
}
void Mutex::lock()
{
#ifdef WIN32
EnterCriticalSection((CRITICAL_SECTION*)systemMutex);
#else
int ret;
ret = pthread_mutex_lock((pthread_mutex_t*)systemMutex);
if (ret != 0)
throw rdr::PosixException("Failed to lock mutex", ret);
#endif
}
void Mutex::unlock()
{
#ifdef WIN32
LeaveCriticalSection((CRITICAL_SECTION*)systemMutex);
#else
int ret;
ret = pthread_mutex_unlock((pthread_mutex_t*)systemMutex);
if (ret != 0)
throw rdr::PosixException("Failed to unlock mutex", ret);
#endif
}
Condition::Condition(Mutex* mutex_)
{
this->mutex = mutex_;
#ifdef WIN32
systemCondition = new CONDITION_VARIABLE;
InitializeConditionVariable((CONDITION_VARIABLE*)systemCondition);
#else
int ret;
systemCondition = new pthread_cond_t;
ret = pthread_cond_init((pthread_cond_t*)systemCondition, nullptr);
if (ret != 0)
throw rdr::PosixException("Failed to create condition variable", ret);
#endif
}
Condition::~Condition()
{
#ifdef WIN32
delete (CONDITION_VARIABLE*)systemCondition;
#else
pthread_cond_destroy((pthread_cond_t*)systemCondition);
delete (pthread_cond_t*)systemCondition;
#endif
}
void Condition::wait()
{
#ifdef WIN32
BOOL ret;
ret = SleepConditionVariableCS((CONDITION_VARIABLE*)systemCondition,
(CRITICAL_SECTION*)mutex->systemMutex,
INFINITE);
if (!ret)
throw rdr::Win32Exception("Failed to wait on condition variable", GetLastError());
#else
int ret;
ret = pthread_cond_wait((pthread_cond_t*)systemCondition,
(pthread_mutex_t*)mutex->systemMutex);
if (ret != 0)
throw rdr::PosixException("Failed to wait on condition variable", ret);
#endif
}
void Condition::signal()
{
#ifdef WIN32
WakeConditionVariable((CONDITION_VARIABLE*)systemCondition);
#else
int ret;
ret = pthread_cond_signal((pthread_cond_t*)systemCondition);
if (ret != 0)
throw rdr::PosixException("Failed to signal condition variable", ret);
#endif
}
void Condition::broadcast()
{
#ifdef WIN32
WakeAllConditionVariable((CONDITION_VARIABLE*)systemCondition);
#else
int ret;
ret = pthread_cond_broadcast((pthread_cond_t*)systemCondition);
if (ret != 0)
throw rdr::PosixException("Failed to broadcast condition variable", ret);
#endif
}
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