Method try_lock

src/bthread/mutex.h:66–66

    }
    void unlock() { bthread_mutex_unlock(&_mutex); }
    bool try_lock() { return 0 == bthread_mutex_trylock(&_mutex); }
    bool timed_lock(const struct timespec* abstime) {
        return !bthread_mutex_timedlock(&_mutex, abstime);
    }