GUACAMOLE-239: When available, use CLOCK_MONOTONIC to prevent backwards running time

2017-03-23 23:06:24 +01:00 · 2017-03-23 23:06:24 +01:00 · ddc1aa0b5f
commit ddc1aa0b5f
parent da7b77d2ec
1 changed files with 6 additions and 2 deletions
--- a/src/libguac/timestamp.c
+++ b/src/libguac/timestamp.c
@ -33,9 +33,13 @@ guac_timestamp guac_timestamp_current() {

    struct timespec current;

-    /* Get current time */
+    /* Get current time, monotonically increasing */ 
+#ifdef CLOCK_MONOTONIC
+    clock_gettime(CLOCK_MONOTONIC, &current);
+#else
    clock_gettime(CLOCK_REALTIME, &current);
-    
+#endif    
+
    /* Calculate milliseconds */
    return (guac_timestamp) current.tv_sec * 1000 + current.tv_nsec / 1000000;