Ejemplo n.º 1
0
static int
evthread_posix_cond_wait(void *_cond, void *_lock, const struct timeval *tv)
{
    int r;
    pthread_cond_t *cond = _cond;
    pthread_mutex_t *lock = _lock;

    if (tv) {
        struct timeval now, abstime;
        struct timespec ts;
        evutil_gettimeofday(&now, NULL);
        evutil_timeradd(&now, tv, &abstime);
        ts.tv_sec = abstime.tv_sec;
        ts.tv_nsec = abstime.tv_usec*1000;
        r = pthread_cond_timedwait(cond, lock, &ts);
        if (r == ETIMEDOUT)
            return 1;
        else if (r)
            return -1;
        else
            return 0;
    } else {
        r = pthread_cond_wait(cond, lock);
        return r ? -1 : 0;
    }
}
Ejemplo n.º 2
0
static void
errorcb(struct bufferevent *b, short what, void *arg)
{
	struct request_info *ri = arg;
	struct timeval now, diff;
	if (what & BEV_EVENT_EOF) {
		++total_n_handled;
		total_n_bytes += ri->n_read;
		evutil_gettimeofday(&now, NULL);
		evutil_timersub(&now, &ri->started, &diff);
		evutil_timeradd(&diff, &total_time, &total_time);

		if (total_n_handled && (total_n_handled%1000)==0)
			printf("%d requests done\n",total_n_handled);

		if (total_n_launched < N_REQUESTS) {
			if (launch_request() < 0)
				perror("Can't launch");
		}
	} else {
		++total_n_errors;
		perror("Unexpected error");
	}

	bufferevent_setcb(b, NULL, NULL, NULL, NULL);
	free(ri);
	bufferevent_disable(b, EV_READ|EV_WRITE);
	bufferevent_free(b);
}
Ejemplo n.º 3
0
void BasicDelayedEventQueue::enqueueDelayed(const Event& event, size_t delayMs, const std::string& eventUUID) {
	std::lock_guard<std::recursive_mutex> lock(_mutex);
	if(_callbackData.find(eventUUID) != _callbackData.end()) {
		cancelDelayed(eventUUID);
	}

	_callbackData[eventUUID].eventUUID = eventUUID;
	_callbackData[eventUUID].userData = event;
	_callbackData[eventUUID].eventQueue = this;

	struct timeval delay = {static_cast<int32_t>(delayMs / 1000), static_cast<int32_t>((delayMs % 1000) * 1000)};
	struct event* e = event_new(_eventLoop, -1, 0, timerCallback, &_callbackData[eventUUID]);

	_callbackData[eventUUID].event = e;
	evutil_gettimeofday(&(_callbackData[eventUUID].added), NULL);
	evutil_timeradd(&delay, &_callbackData[eventUUID].added, &_callbackData[eventUUID].due);

	event_add(e, &delay);
}
Ejemplo n.º 4
0
static void
thread_conditions_simple(void *arg)
{
	struct timeval tv_signal, tv_timeout, tv_broadcast;
	struct alerted_record alerted[NUM_THREADS];
	THREAD_T threads[NUM_THREADS];
	struct cond_wait cond;
	int i;
	struct timeval launched_at;
	struct event wake_one;
	struct event wake_all;
	struct basic_test_data *data = arg;
	struct event_base *base = data->base;
	int n_timed_out=0, n_signal=0, n_broadcast=0;

	tv_signal.tv_sec = tv_timeout.tv_sec = tv_broadcast.tv_sec = 0;
	tv_signal.tv_usec = 30*1000;
	tv_timeout.tv_usec = 150*1000;
	tv_broadcast.tv_usec = 500*1000;

	EVTHREAD_ALLOC_LOCK(cond.lock, EVTHREAD_LOCKTYPE_RECURSIVE);
	EVTHREAD_ALLOC_COND(cond.cond);
	tt_assert(cond.lock);
	tt_assert(cond.cond);
	for (i = 0; i < NUM_THREADS; ++i) {
		memset(&alerted[i], 0, sizeof(struct alerted_record));
		alerted[i].cond = &cond;
	}

	/* Threads 5 and 6 will be allowed to time out */
	memcpy(&alerted[5].delay, &tv_timeout, sizeof(tv_timeout));
	memcpy(&alerted[6].delay, &tv_timeout, sizeof(tv_timeout));

	evtimer_assign(&wake_one, base, wake_one_timeout, &cond);
	evtimer_assign(&wake_all, base, wake_all_timeout, &cond);

	evutil_gettimeofday(&launched_at, NULL);

	/* Launch the threads... */
	for (i = 0; i < NUM_THREADS; ++i) {
		THREAD_START(threads[i], wait_for_condition, &alerted[i]);
	}

	/* Start the timers... */
	tt_int_op(event_add(&wake_one, &tv_signal), ==, 0);
	tt_int_op(event_add(&wake_all, &tv_broadcast), ==, 0);

	/* And run for a bit... */
	event_base_dispatch(base);

	/* And wait till the threads are done. */
	for (i = 0; i < NUM_THREADS; ++i)
		THREAD_JOIN(threads[i]);

	/* Now, let's see what happened. At least one of 5 or 6 should
	 * have timed out. */
	n_timed_out = alerted[5].timed_out + alerted[6].timed_out;
	tt_int_op(n_timed_out, >=, 1);
	tt_int_op(n_timed_out, <=, 2);

	for (i = 0; i < NUM_THREADS; ++i) {
		const struct timeval *target_delay;
		struct timeval target_time, actual_delay;
		if (alerted[i].timed_out) {
			TT_BLATHER(("%d looks like a timeout\n", i));
			target_delay = &tv_timeout;
			tt_assert(i == 5 || i == 6);
		} else if (evutil_timerisset(&alerted[i].alerted_at)) {
			long diff1,diff2;
			evutil_timersub(&alerted[i].alerted_at,
			    &launched_at, &actual_delay);
			diff1 = timeval_msec_diff(&actual_delay,
			    &tv_signal);
			diff2 = timeval_msec_diff(&actual_delay,
			    &tv_broadcast);
			if (abs(diff1) < abs(diff2)) {
				TT_BLATHER(("%d looks like a signal\n", i));
				target_delay = &tv_signal;
				++n_signal;
			} else {
				TT_BLATHER(("%d looks like a broadcast\n", i));
				target_delay = &tv_broadcast;
				++n_broadcast;
			}
		} else {
			TT_FAIL(("Thread %d never got woken", i));
			continue;
		}
		evutil_timeradd(target_delay, &launched_at, &target_time);
		test_timeval_diff_leq(&target_time, &alerted[i].alerted_at,
		    0, 50);
	}
	tt_int_op(n_broadcast + n_signal + n_timed_out, ==, NUM_THREADS);
	tt_int_op(n_signal, ==, 1);

end:
	;
}