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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
/**
* @author Peter Boros
* @date 2004/09/07
* @version $Id$
* @file rwlock.cpp
* @brief Read-write lock.
*
*/
#include <pthread.h>
#include <sched.h>
#include <cassert>
#include "rwlock.h"
namespace fsa {
// {{{ class RWLock::Impl
struct RWLock::Impl
{
pthread_rwlock_t _rwlock; /**< Lock. */
};
// }}}
RWLock::RWLock(void) : _impl(new Impl)
{
int rc;
rc = pthread_rwlock_init(&(_impl->_rwlock),NULL);
assert(rc == 0);
}
RWLock::~RWLock(void)
{
pthread_rwlock_destroy(&(_impl->_rwlock));
delete _impl;
}
bool RWLock::tryRdLock (void)
{
return pthread_rwlock_tryrdlock(&(_impl->_rwlock)) == 0;
}
bool RWLock::tryWrLock (void)
{
return pthread_rwlock_trywrlock(&(_impl->_rwlock)) == 0;
}
bool RWLock::rdLock (void)
{
return pthread_rwlock_rdlock(&(_impl->_rwlock)) == 0;
}
bool RWLock::wrLock (void)
{
return pthread_rwlock_wrlock(&(_impl->_rwlock)) == 0;
}
bool RWLock::unlock (void)
{
return pthread_rwlock_unlock(&(_impl->_rwlock)) == 0;
}
} // namespace fsa
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