[dpdk-dev] [PATCH v2] test: add delay time in test alarm

[Qiming Yang <qiming.yang@intel.com>]

Because accuracy of timing to the microsecond is not guaranteed
in rte_eal_alarm_set, this function will not be called before
the requested time, but may be called a period of time
afterwards which can not be calculated. In order to ensure
test alarm running success, this patch added the delay time
before check the flag.

Signed-off-by: Qiming Yang <qiming.yang@intel.com>
---
v2 changes:
* fixed coding style problems
---
---
 test/test/test_alarm.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/test/test/test_alarm.c b/test/test/test_alarm.c
index ecb2f6d..cbae1a0 100644
--- a/test/test/test_alarm.c
+++ b/test/test/test_alarm.c
@@ -96,6 +96,7 @@ static int
 test_multi_alarms(void)
 {
 	int rm_count = 0;
+	int count = 0;
 	cb_count.cnt = 0;
 
 	printf("Expect 6 callbacks in order...\n");
@@ -169,7 +170,10 @@ test_multi_alarms(void)
 		printf("Error, cancelling head-of-list leads to premature callback\n");
 		return -1;
 	}
-	rte_delay_ms(10);
+
+	while (flag != 2 && count++ < 6)
+		rte_delay_ms(10);
+
 	if (flag != 2) {
 		printf("Error - expected callback not called\n");
 		rte_eal_alarm_cancel(test_remove_in_callback, (void *)-1);
@@ -212,7 +216,7 @@ test_alarm(void)
 		printf("fail to set alarm callback\n");
 		return -1;
 	}
-	while (flag == 0 && count ++ < 6)
+	while (flag == 0 && count++ < 20)
 		rte_delay_ms(RTE_TEST_CHECK_PERIOD);
 
 	if (flag == 0){
-- 
2.7.4