BUG: handle negative delays in timer_process() (timer.c)

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1105 3ae390bd-cb1e-0410-b409-cd5a39f66f1f

1 files changed, 4 insertions, 0 deletions

diff --git a/timer.c b/timer.c
index dfdb6e8..212c392 100644
--- a/timer.c
+++ b/timer.c
@@ -210,6 +210,10 @@ int timer_process(struct timespec *delay)
     struct timeval diff;
     timersub(&Timers[min].when, &now, &diff);
 
+    /* for negative delays, directly trigger next update */
+    if ((diff.tv_sec < 0) || (diff.tv_usec < 0))
+      timerclear(&diff);
+
     delay->tv_sec = diff.tv_sec;
     /* microseconds to nanoseconds!! */
     delay->tv_nsec = diff.tv_usec * 1000;