Function event_timer_arm

dpdk/app/test/test_event_timer_adapter.c:1303–1353

Test various cases in arming timers */

/* Test various cases in arming timers */
static int
event_timer_arm(void)
{
	uint16_t n;
	int ret;
	struct rte_event_timer_adapter *adapter = timdev;
	struct rte_event_timer *evtim = NULL;
	struct rte_event evs[BATCH_SIZE];
	uint64_t ticks = 5;
	const struct rte_event_timer init_tim = {
		.ev.op = RTE_EVENT_OP_NEW,
		.ev.queue_id = TEST_QUEUE_ID,
		.ev.sched_type = RTE_SCHED_TYPE_ATOMIC,
		.ev.priority = RTE_EVENT_DEV_PRIORITY_NORMAL,
		.ev.event_type =  RTE_EVENT_TYPE_TIMER,
		.state = RTE_EVENT_TIMER_NOT_ARMED,
		.timeout_ticks = CALC_TICKS(ticks), /**< expire in .5 sec */
	};

	rte_mempool_get(eventdev_test_mempool, (void **)&evtim);
	if (evtim == NULL) {
		/* Failed to get an event timer object */
		return TEST_FAILED;
	}

	/* Set up a timer */
	*evtim = init_tim;
	evtim->ev.event_ptr = evtim;

	/* Test single timer arm succeeds */
	ret = rte_event_timer_arm_burst(adapter, &evtim, 1);
	TEST_ASSERT_EQUAL(ret, 1, "Failed to arm event timer: %s\n",
			  rte_strerror(rte_errno));
	TEST_ASSERT_EQUAL(evtim->state, RTE_EVENT_TIMER_ARMED, "Event timer "
			  "in incorrect state");

	/* Test arm of armed timer fails */
	ret = rte_event_timer_arm_burst(adapter, &evtim, 1);
	TEST_ASSERT_EQUAL(ret, 0, "expected return value from "
			  "rte_event_timer_arm_burst: 0, got: %d", ret);
	TEST_ASSERT_EQUAL(rte_errno, EALREADY, "Unexpected rte_errno value "
			  "after arming already armed timer");

	n = timeout_event_dequeue(evs, RTE_DIM(evs), WAIT_TICKS(ticks));
	TEST_ASSERT_EQUAL(n, 1, "Failed to dequeue expected number of expiry "
			  "events from event device");

	rte_mempool_put(eventdev_test_mempool, evtim);

	return TEST_SUCCESS;
}

/* This test checks that repeated references to the same event timer in the
 * arm request work as expected; only the first one through should succeed.