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-rw-r--r--src/vppinfra/tw_timer_template.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/src/vppinfra/tw_timer_template.c b/src/vppinfra/tw_timer_template.c
index 07e300f5eac..174ffaceb47 100644
--- a/src/vppinfra/tw_timer_template.c
+++ b/src/vppinfra/tw_timer_template.c
@@ -421,7 +421,6 @@ TW (tw_timer_wheel_init) (TWT (tw_timer_wheel) * tw,
}
tw->timer_interval = timer_interval_in_seconds;
tw->ticks_per_second = 1.0 / timer_interval_in_seconds;
- tw->first_expires_tick = ~0ULL;
vec_validate (tw->expired_timer_handles, 0);
_vec_len (tw->expired_timer_handles) = 0;
@@ -514,7 +513,7 @@ static inline
u32 slow_wheel_index __attribute__ ((unused));
u32 glacier_wheel_index __attribute__ ((unused));
- /* Shouldn't happen */
+ /* Called too soon to process new timer expirations? */
if (PREDICT_FALSE (now < tw->next_run_time))
return callback_vector_arg;
@@ -526,6 +525,14 @@ static inline
/* Remember when we ran, compute next runtime */
tw->next_run_time = (now + tw->timer_interval);
+ /* First call, or time jumped backwards? */
+ if (PREDICT_FALSE
+ ((tw->last_run_time == 0.0) || (now <= tw->last_run_time)))
+ {
+ tw->last_run_time = now;
+ return callback_vector_arg;
+ }
+
if (callback_vector_arg == 0)
{
_vec_len (tw->expired_timer_handles) = 0;