56     if (int error = ::pthread_mutex_init (&_semaphore.mutex, 0))  in Semaphore()
72     error = ::pthread_mutex_destroy (&_semaphore.mutex);  in ~Semaphore()
80     ::pthread_mutex_lock (&_semaphore.mutex);  in wait()
87                                              &_semaphore.mutex))  in wait()
89             ::pthread_mutex_unlock (&_semaphore.mutex);  in wait()
99     ::pthread_mutex_unlock (&_semaphore.mutex);  in wait()
106     ::pthread_mutex_lock (&_semaphore.mutex);  in tryWait()
110         ::pthread_mutex_unlock (&_semaphore.mutex);  in tryWait()
116         ::pthread_mutex_unlock (&_semaphore.mutex);  in tryWait()
125     ::pthread_mutex_lock (&_semaphore.mutex);  in post()
131             ::pthread_mutex_unlock (&_semaphore.mutex);  in post()
139     ::pthread_mutex_unlock (&_semaphore.mutex);  in post()
146     ::pthread_mutex_lock (&_semaphore.mutex);  in value()
148     ::pthread_mutex_unlock (&_semaphore.mutex);  in value()