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Ensure we're not running events ahead of time.

This commit is contained in:
Chris Young 2014-11-22 17:15:52 +00:00
parent 4a395ad025
commit 335ba082fd
1 changed files with 9 additions and 2 deletions
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11
amiga/schedule.c
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@ -247,6 +247,7 @@ static void ami_scheduler_run(struct MsgPort *nsmsgport)
struct nscallback *nscb;
void (*callback)(void *p);
void *p;
struct TimeVal tv;
struct ami_schedule_message *asmsg = AllocSysObjectTags(ASOT_MESSAGE,
ASOMSG_Size, sizeof(struct ami_schedule_message),
@ -255,6 +256,13 @@ static void ami_scheduler_run(struct MsgPort *nsmsgport)
nscb = pblHeapGetFirst(schedule_list);
if(nscb == -1) return;
/* Ensure the scheduled event time has passed (CmpTime<=0)
* in case something been deleted between the timer
* signalling us and us responding to it.
*/
GetSysTime(&tv);
if(CmpTime(&tv, &nscb->tv) > 0) return;
callback = nscb->callback;
p = nscb->p;
ami_schedule_remove_timer_event(nscb);
@ -462,8 +470,7 @@ static int32 ami_scheduler_process(STRPTR args, int32 length, APTR execbase)
* it crashes if we reply after schedule_run has executed.
*/
ReplyMsg((struct Message *)timermsg);
ami_scheduler_run(nsmsgport); /* \todo check timer event doesn't relate to
* something that's been deleted already */
ami_scheduler_run(nsmsgport);
}
}
}