All OSes now do have a cheap monotonic clock, so no caching thread is needed. Also add some relative time helpers

1 files changed, 4 insertions, 4 deletions

diff --git a/ot_udp.c b/ot_udp.c
index 4e760bb..19a6c7c 100644
--- a/ot_udp.c
+++ b/ot_udp.c
@@ -30,7 +30,7 @@ static void     udp_generate_rijndael_round_key(void) {
   rijndaelKeySetupEnc128(g_rijndael_round_key, (uint8_t *)key);
 
   g_key_of_the_hour[0] = random_uint32();
-  g_hour_of_the_key = g_now_minutes;
+  g_hour_of_the_key = time_now_minutes();
 }
 
 /* Generate current and previous connection id for ip */
@@ -39,14 +39,14 @@ static void udp_make_connectionid(uint32_t connid[2], const ot_ip6 remoteip, int
   int      i;
   uint32_t current_key_of_the_hour;
 
-  if (g_now_minutes - g_hour_of_the_key >= 60) {
+  if (time_now_minutes() - g_hour_of_the_key >= 60) {
     uint32_t old_key_of_the_hour = g_key_of_the_hour[0];
     uint32_t new_key_of_the_hour = random_uint32();
     /* If in the meantime another thread has performed
        key rotation, do not overwrite their results */
-    if (g_now_minutes - g_hour_of_the_key >= 60) {
+    if (time_now_minutes() - g_hour_of_the_key >= 60) {
       /* Upgrade en bloc */
-      g_hour_of_the_key    = g_now_minutes;
+      g_hour_of_the_key    = time_now_minutes();
       g_key_of_the_hour[0] = new_key_of_the_hour;
       g_key_of_the_hour[1] = old_key_of_the_hour;
     }