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#ifndef _sys_posix_Condition_h
#define _sys_posix_Condition_h
/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include "PrivatePosix.h"
#include "qpid/sys/Mutex.h"
#include "qpid/sys/Time.h"
#include <time.h>
#include <sys/errno.h>
#include <boost/noncopyable.hpp>
namespace qpid {
namespace sys {
/**
* A condition variable for thread synchronization.
*/
class Condition
{
public:
inline Condition();
inline ~Condition();
inline void wait(Mutex&);
inline bool wait(Mutex&, const AbsTime& absoluteTime);
inline void notify();
inline void notifyAll();
private:
pthread_cond_t condition;
};
Condition::Condition() {
QPID_POSIX_ASSERT_THROW_IF(pthread_cond_init(&condition, 0));
}
Condition::~Condition() {
QPID_POSIX_ASSERT_THROW_IF(pthread_cond_destroy(&condition));
}
void Condition::wait(Mutex& mutex) {
QPID_POSIX_ASSERT_THROW_IF(pthread_cond_wait(&condition, &mutex.mutex));
}
bool Condition::wait(Mutex& mutex, const AbsTime& absoluteTime){
struct timespec ts;
toTimespec(ts, Duration(absoluteTime));
int status = pthread_cond_timedwait(&condition, &mutex.mutex, &ts);
if (status != 0) {
if (status == ETIMEDOUT) return false;
throw QPID_POSIX_ERROR(status);
}
return true;
}
void Condition::notify(){
QPID_POSIX_ASSERT_THROW_IF(pthread_cond_signal(&condition));
}
void Condition::notifyAll(){
QPID_POSIX_ASSERT_THROW_IF(pthread_cond_broadcast(&condition));
}
}}
#endif /*!_sys_posix_Condition_h*/
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