Use new get_tick_count() to avoid timing issues on packets

1 files changed, 15 insertions, 3 deletions

diff --git a/src/utils.c b/src/utils.c
index 5dd871d..ceb65e1 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -28,6 +28,7 @@
 #include <string.h>
 #include <stdio.h>
 #include <stdarg.h>
+#include <time.h>
 #include <sys/time.h>
 
 #include "utils.h"
@@ -298,15 +299,26 @@ int plist_write_to_filename(plist_t plist, const char *filename, enum plist_form
         return 1;
 }
 
+void get_tick_count(struct timeval * tv)
+{
+        struct timespec ts;
+        if(0 == clock_gettime(CLOCK_MONOTONIC, &ts)) {
+                tv->tv_sec = ts.tv_sec;
+                tv->tv_usec = ts.tv_nsec / 1000;
+        } else {
+                gettimeofday(tv, NULL);
+        }
+}
+
 /**
  * Get number of milliseconds since the epoch.
  */
 uint64_t mstime64(void)
 {
         struct timeval tv;
-        gettimeofday(&tv, NULL);
+        get_tick_count(&tv);
 
-  // Careful, avoid overflow on 32 bit systems
-  // time_t could be 4 bytes
+        // Careful, avoid overflow on 32 bit systems
+        // time_t could be 4 bytes
         return ((long long)tv.tv_sec) * 1000LL + ((long long)tv.tv_usec) / 1000LL;
 }