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Ensure that ao_alarm waits at least the specified time
[fw/altos]
/
src
/
ao_task.c
diff --git
a/src/ao_task.c
b/src/ao_task.c
index 4664163d6a1a7ccdd6801575f2b182d58e8d3f6a..4a78766e2828664b1687b09f0ea28a02ac987066 100644
(file)
--- a/
src/ao_task.c
+++ b/
src/ao_task.c
@@
-217,7
+217,10
@@
ao_wakeup(__xdata void *wchan)
void
ao_alarm(uint16_t delay)
{
void
ao_alarm(uint16_t delay)
{
- if (!(ao_cur_task->alarm = ao_time() + delay))
+ /* Make sure we sleep *at least* delay ticks, which means adding
+ * one to account for the fact that we may be close to the next tick
+ */
+ if (!(ao_cur_task->alarm = ao_time() + delay + 1))
ao_cur_task->alarm = 1;
}
ao_cur_task->alarm = 1;
}