fix: animationFrameScheduler and asapScheduler no longer executing actions #6889
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This was referenced Mar 14, 2022
benlesh
requested changes
Mar 28, 2022
| result.push('work'); | ||
| if (reschedule) { | ||
| asapScheduler.schedule(() => result.push('task 1')); | ||
| asapScheduler.schedule(() => result.push('task 2')); |
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Can we add an assertion right here to make sure that the above tasks didn't execute synchronously in this spot? Basically, just check to make sure results haven't changed yet. It's not so much that I think they did, it's that I want to make sure they're "scheduled" and don't just happen to mimic the proper outcome by virtue of when we checked.
Please do the same for the other test? Thanks, @ajafff!
Otherwise, this looks great.
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@benlesh could you please review it again? Can't upgrade above 7.4.0 due to this problem.
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Description:
AnimationFrameActionandAsapAction'srecycleAsyncIdshould only resetscheduler_scheduledif it's the sameidwe are currently recycling. This fixes the issue described in #6854 where actions scheduled from another action have already setscheduler._scheduled, which is then cleared when the currently executing action is done.This works because there are at most 2 schedules for these schedulers: the currently executing one and the next schedule. This also means we no longer
cancelAnimationFrame/clearImmediatethe current schedule after its last action is done (which does nothing for correctness, but avoid unnecessary work).Related issue (if exists):
Fixes #6854