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sched/sched: Correct the elapsed time calculation. 

This patch addresses an issue where the elapsed time was uncorrectly calculated.

Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
Signed-off-by: ligd <liguiding1@xiaomi.com>
This commit is contained in:
ouyangxiangzhen 2024-08-27 14:11:13 +08:00 committed by Xiang Xiao
parent bc1e1e1064
commit b7cd0ab796
1 changed files with 7 additions and 18 deletions
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25
sched/sched/sched_timerexpiration.c
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@ -562,31 +562,20 @@ void nxsched_reassess_timer(void)
clock_t ticks;
clock_t elapsed;
#ifdef CONFIG_SCHED_TICKLESS_ALARM
/* Cancel the alarm and get the current time */
/* Cancel the timer and get the current time */
#ifdef CONFIG_SCHED_TICKLESS_ALARM
up_alarm_tick_cancel(&ticks);
#else
up_timer_gettick(&ticks);
up_timer_tick_cancel(&elapsed);
DEBUGASSERT(elapsed <= g_timer_interval);
#endif
/* Convert this to the elapsed time and update clock tickbase */
elapsed = ticks - g_timer_tick;
g_timer_tick = ticks;
#else
/* Cancel the timer and get the current time */
up_timer_gettick(&ticks);
up_timer_tick_cancel(&elapsed);
DEBUGASSERT(elapsed <= g_timer_interval);
/* Handle the partial timer. This will reassess all timer conditions and
* re-start the interval timer with the correct delay. Context switches
* are not permitted in this case because we are not certain of the
* calling conditions.
*/
ticks += g_timer_interval - elapsed;
g_timer_tick = ticks;
#endif
/* Process the timer ticks and start next timer */