test-tool: add test_get_clock_sec() helper

Useful for test IO timeouts.

Signed-off-by: David Disseldorp <ddiss@suse.de>

test-tool/iscsi-support.c

@@ -3028,3 +3028,22 @@ test_iscsi_tur_until_good(struct scsi_device *iscsi_sd, int *num_uas)
 
         return -ETIMEDOUT;
 }
+
+uint64_t
+test_get_clock_sec(void)
+{
+	uint64_t secs;
+	int res;
+
+#ifdef HAVE_CLOCK_GETTIME
+	struct timespec ts;
+	res = clock_gettime(CLOCK_MONOTONIC, &ts);
+	secs = ts.tv_sec;
+#else
+	struct timeval tv;
+	res = gettimeofday(&tv, NULL);
+	secs = tv.tv_sec;
+#endif
+	assert(res == 0);
+	return secs;
+}

test-tool/iscsi-support.h

@@ -859,4 +859,7 @@ int receive_copy_results(struct scsi_task **task, struct scsi_device *sdev,
                          void **datap, int status, enum scsi_sense_key key,
                          int *ascq, int num_ascq);
 int test_iscsi_tur_until_good(struct scsi_device *iscsi_sd, int *num_uas);
+
+uint64_t test_get_clock_sec(void);
+
 #endif        /* _ISCSI_SUPPORT_H_ */