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/*
* Copyright (c) 2005, Eric Crahen
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is furnished
* to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include "zthread/Semaphore.h"
#include "SemaphoreImpl.h"
namespace ZThread {
/**
* Create a new semaphore of a given size with a given count
*
* @param initialCount initial count to assign this semaphore
* @param maxCount maximum size of the semaphore count
*/
Semaphore::Semaphore(int count, unsigned int maxCount) {
_impl = new FifoSemaphoreImpl(count, maxCount, true);
}
Semaphore::~Semaphore() {
if(_impl != 0)
delete _impl;
}
void Semaphore::wait() {
_impl->acquire();
}
bool Semaphore::tryWait(unsigned long ms) {
return _impl->tryAcquire(ms);
}
void Semaphore::post() {
_impl->release();
}
int Semaphore::count() {
return _impl->count();
}
///////////////////////////////////////////////////////////////////////////////
// Locakable compatibility
//
void Semaphore::acquire() {
_impl->acquire();
}
bool Semaphore::tryAcquire(unsigned long ms) {
return _impl->tryAcquire(ms);
}
void Semaphore::release() {
_impl->release();
}
} // namespace ZThread
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