48   pthread_mutex_t* mutex =  in MutexImpl()  local
63   errorcode = pthread_mutex_init(mutex, &attr);  in MutexImpl()
71   data_ = mutex;  in MutexImpl()
77   pthread_mutex_t* mutex = static_cast<pthread_mutex_t*>(data_);  in ~MutexImpl()  local
78   assert(mutex != nullptr);  in ~MutexImpl()
79   pthread_mutex_destroy(mutex);  in ~MutexImpl()
80   free(mutex);  in ~MutexImpl()
86   pthread_mutex_t* mutex = static_cast<pthread_mutex_t*>(data_);  in acquire()  local
87   assert(mutex != nullptr);  in acquire()
89   int errorcode = pthread_mutex_lock(mutex);  in acquire()
96   pthread_mutex_t* mutex = static_cast<pthread_mutex_t*>(data_);  in release()  local
97   assert(mutex != nullptr);  in release()
99   int errorcode = pthread_mutex_unlock(mutex);  in release()
106   pthread_mutex_t* mutex = static_cast<pthread_mutex_t*>(data_);  in tryacquire()  local
107   assert(mutex != nullptr);  in tryacquire()
109   int errorcode = pthread_mutex_trylock(mutex);  in tryacquire()