Method lock

extern/boost/boost/thread/pthread/mutex.hpp:168–175

#endif
#ifdef BOOST_THREAD_USES_PTHREAD_TIMEDLOCK
        void lock()
        {
            int res = posix::pthread_mutex_lock(&m);
            if (res)
            {
                boost::throw_exception(lock_error(res,"boost: mutex lock failed in pthread_mutex_lock"));
            }
        }

        void unlock()
        {