parent
5bee45756d
commit
c141568b13
@ -1,26 +1,60 @@
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#include "Mutex.hpp"
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#include <assert.h>
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#include <time.h>
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Mutex::Mutex()
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Mutex::Mutex(int type)
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{
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pthread_mutex_init( &m_mutex, 0 );
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int ret;
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if ( type == PTHREAD_MUTEX_DEFAULT ) {
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ret = pthread_mutex_init( &m_mutex, 0 );
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} else {
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pthread_mutexattr_t attr;
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pthread_mutexattr_init(&attr);
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pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK);
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ret = pthread_mutex_init( &m_mutex, &attr );
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}
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assert( ret == 0 );
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}
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Mutex::~Mutex()
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{
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pthread_mutex_destroy ( &m_mutex );
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int ret = pthread_mutex_destroy ( &m_mutex );
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assert( ret == 0);
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}
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void Mutex::lock()
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{
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pthread_mutex_lock( &m_mutex );
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int ret = pthread_mutex_lock( &m_mutex );
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assert( ret == 0);
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}
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void Mutex::unlock()
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{
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pthread_mutex_unlock ( &m_mutex );
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int ret = pthread_mutex_unlock ( &m_mutex );
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assert( ret == 0);
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}
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bool Mutex::tryLock(int interval)
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{
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if ( interval == 0 ) {
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int result = pthread_mutex_trylock ( &m_mutex );
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return result == 0;
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} else {
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timespec abs_time;
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clock_gettime ( CLOCK_REALTIME, &abs_time );
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abs_time.tv_nsec += interval * 1000000;
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if ( abs_time.tv_nsec >= 1000000000 ) {
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abs_time.tv_nsec -= 1000000000;
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abs_time.tv_sec += 1;
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}
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int result = pthread_mutex_timedlock ( &m_mutex, &abs_time );
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return result == 0;
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}
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}
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