X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Fhelper%2Ftime_support.c;h=05eaf0a9d08e4cfae9a1dddf28c12d906813a2fb;hb=d46b28983dc27369e90f4dc8a0e54b5057583b38;hp=8337e73ba7518f20a90437032c9eb3acbeacdab1;hpb=d0e763ac7ef6aa17b17bd00ccdfbccfb4eacda69;p=openocd.git

diff --git a/src/helper/time_support.c b/src/helper/time_support.c
index 8337e73ba7..05eaf0a9d0 100644
--- a/src/helper/time_support.c
+++ b/src/helper/time_support.c
@@ -62,6 +62,21 @@ int timeval_add_time(struct timeval *result, long sec, long usec)
 	return 0;
 }
 
+/* compare two timevals and return -1/0/+1 accordingly */
+int timeval_compare(const struct timeval *x, const struct timeval *y)
+{
+	if (x->tv_sec < y->tv_sec)
+		return -1;
+	else if (x->tv_sec > y->tv_sec)
+		return 1;
+	else if (x->tv_usec < y->tv_usec)
+		return -1;
+	else if (x->tv_usec > y->tv_usec)
+		return 1;
+	else
+		return 0;
+}
+
 int duration_start(struct duration *duration)
 {
 	return gettimeofday(&duration->start, NULL);