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sys/vtimer: Remove timer before adding.

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Workaround for a bug which causes the same timer to be added twice.
This commit is contained in:
Joakim Gebart 2015-06-25 10:09:56 +02:00
parent 31f95c40f1
commit c30f71aa8a
1 changed files with 12 additions and 0 deletions
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12
sys/vtimer/vtimer.c
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@ -97,6 +97,12 @@ static inline vtimer_t *node_get_timer(priority_queue_node_t *node)
static int set_longterm(vtimer_t *timer)
{
timer->priority_queue_entry.priority = timer->absolute.seconds;
/* *** UGLY FIX BEGINS *** */
/* Workaround for a bug in a so far undiscovered location which causes the
* vtimer to add the same timer twice, locking the system in an infinite
* loop inside priority_queue_add. */
priority_queue_remove(&longterm_priority_queue_root, timer_get_node(timer));
/* *** UGLY FIX ENDS *** */
priority_queue_add(&longterm_priority_queue_root, timer_get_node(timer));
return 0;
}
@ -189,6 +195,12 @@ static int set_shortterm(vtimer_t *timer)
{
DEBUG("set_shortterm(): Absolute: %" PRIu32 " %" PRIu32 "\n", timer->absolute.seconds, timer->absolute.microseconds);
timer->priority_queue_entry.priority = timer->absolute.microseconds;
/* *** UGLY FIX BEGINS *** */
/* Workaround for a bug in a so far undiscovered location which causes the
* vtimer to add the same timer twice, locking the system in an infinite
* loop inside priority_queue_add. */
priority_queue_remove(&shortterm_priority_queue_root, timer_get_node(timer));
/* *** UGLY FIX ENDS *** */
priority_queue_add(&shortterm_priority_queue_root, timer_get_node(timer));
return 1;
}