[tests] add common function to sleep based on how the test suite is r…

…unning

Address issue while waiting for host to be up and PMTUd first run.

Signed-off-by: Fabio M. Di Nitto <fdinitto@redhat.com>

libknet/tests/api_knet_handle_pmtud_set.c

@@ -167,7 +167,7 @@ static void test(void)
 	/*
 	 * wait for PMTUd to pick up the change
 	 */
-	sleep(1);
+	test_sleep(knet_h, 1);
 	flush_logs(logfds[0], stdout);
 
 	if (knet_h->data_mtu != data_mtu - 64) {
@@ -196,11 +196,11 @@ static void test(void)
 	/*
 	 * wait for PMTUd to pick up the change
 	 */
-	sleep(2);
+	test_sleep(knet_h, 1);
 	flush_logs(logfds[0], stdout);
 
 	if (knet_h->data_mtu != data_mtu) {
-		printf("knet_handle_pmtud_set failed to redetect MTU\n");
+		printf("knet_handle_pmtud_set failed to redetect MTU: detected mtu: %u data_mtu: %u \n", knet_h->data_mtu, data_mtu);
 		knet_link_set_enable(knet_h, 1, 0, 0);
 		knet_link_clear_config(knet_h, 1, 0);
 		knet_host_remove(knet_h, 1);

libknet/tests/api_knet_link_set_enable.c

@@ -293,7 +293,7 @@ static void test_sctp(void)
 	}
 
 	printf("Wait 2 seconds for sockets to connect\n");
-	sleep(2);
+	test_sleep(knet_h, 2);
 
 	printf("Test knet_link_set_enable with correct values (0)\n");
 

libknet/tests/test-common.c

@@ -468,6 +468,15 @@ int make_local_sockaddr6(struct sockaddr_storage *lo, uint16_t offset)
 	return _make_local_sockaddr(lo, offset, AF_INET6);
 }
 
+void test_sleep(knet_handle_t knet_h, int seconds)
+{
+	if (is_memcheck() || is_helgrind()) {
+		printf("Test suite is running under valgrind, adjusting sleep timers\n");
+		seconds = seconds * 16;
+	}
+	sleep(seconds);
+}
+
 int wait_for_host(knet_handle_t knet_h, uint16_t host_id, int seconds, int logfd, FILE *std)
 {
 	int i = 0;
@@ -480,6 +489,8 @@ int wait_for_host(knet_handle_t knet_h, uint16_t host_id, int seconds, int logfd
 	while (i < seconds) {
 		flush_logs(logfd, std);
 		if (knet_h->host_index[host_id]->status.reachable == 1) {
+			printf("Waiting for host to settle\n");
+			test_sleep(knet_h, 1);
 			return 0;
 		}
 		printf("waiting host %u to be reachable for %d more seconds\n", host_id, seconds - i);

libknet/tests/test-common.h

@@ -71,5 +71,6 @@ int make_local_sockaddr(struct sockaddr_storage *lo, uint16_t offset);
 int make_local_sockaddr6(struct sockaddr_storage *lo, uint16_t offset);
 int wait_for_host(knet_handle_t knet_h, uint16_t host_id, int seconds, int logfd, FILE *std);
 int wait_for_packet(knet_handle_t knet_h, int seconds, int datafd, int logfd, FILE *std);
+void test_sleep(knet_handle_t knet_h, int seconds);
 
 #endif