Method TimeWaitInUs

src/common/mutex.h:132–149

Time wait in us timeout < 0 would cause ETIMEOUT and return false immediately

  // Time wait in us
  // timeout < 0 would cause ETIMEOUT and return false immediately
  bool TimeWaitInUs(int64_t timeout, const char *msg = NULL) {
    // ref:
    // http://www.qnx.com/developers/docs/6.5.0SP1.update/com.qnx.doc.neutrino_lib_ref/p/pthread_cond_timedwait.html
    struct timespec ts;
    clock_gettime(CLOCK_MONOTONIC, &ts);
    int64_t nsec = timeout * 1000 + ts.tv_nsec;

    assert(nsec > 0);

    ts.tv_sec += nsec / 1000000000;
    ts.tv_nsec = nsec % 1000000000;

    int64_t msg_threshold = mu_->msg_threshold_;
    mu_->BeforeUnlock();
    int ret = pthread_cond_timedwait(&cond_, &mu_->mu_, &ts);
    mu_->AfterLock(msg, msg_threshold);
    return (ret == 0);
  }
  // Time wait in ms
  // timeout < 0 would cause ETIMEOUT and return false immediately
  bool TimeWait(int timeout, const char *msg = NULL) { return TimeWaitInUs(timeout * 1000LL, msg); }