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1311425 - Make requestIdleCallback aware of timeouts.

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Prepare for handling several sources of idleness.

Make idle callbacks aware of nsITimers.

Add pref for how far into the timer queue.

1311425 - Avoid expiration timers when scheduling idle runnables.

review comment fix to ensure low priority timers aren't taken into account when calling NS_GetTimerDeadlineHintOnCurrentThread.
This commit is contained in:
win7-7 2024-04-27 19:21:20 +03:00 • committed by wuggy
commit 5499c5f9a3
12 changed files with 188 additions and 60 deletions
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20
layout/base/nsRefreshDriver.cpp
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@ -223,12 +223,12 @@ public:
return mLastFireSkipped;
}
Maybe<TimeStamp> GetIdleDeadlineHint()
TimeStamp GetIdleDeadlineHint(TimeStamp aDefault)
{
MOZ_ASSERT(NS_IsMainThread());
if (LastTickSkippedAnyPaints()) {
return Some(TimeStamp());
return TimeStamp::Now();
}
TimeStamp mostRecentRefresh = MostRecentRefresh();
@ -238,11 +238,12 @@ public:
if (idleEnd +
refreshRate * nsLayoutUtils::QuiescentFramesBeforeIdlePeriod() <
TimeStamp::Now()) {
return Nothing();
return aDefault;
}
return Some(idleEnd - TimeDuration::FromMilliseconds(
nsLayoutUtils::IdlePeriodDeadlineLimit()));
idleEnd = idleEnd - TimeDuration::FromMilliseconds(
nsLayoutUtils::IdlePeriodDeadlineLimit());
return idleEnd < aDefault ? idleEnd : aDefault;
}
protected:
@ -2333,13 +2334,14 @@ nsRefreshDriver::CancelPendingEvents(nsIDocument* aDocument)
}
}
/* static */ Maybe<TimeStamp>
nsRefreshDriver::GetIdleDeadlineHint()
/* static */ TimeStamp
nsRefreshDriver::GetIdleDeadlineHint(TimeStamp aDefault)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(!aDefault.IsNull());
if (!sRegularRateTimer) {
return Nothing();
return aDefault;
}
// For computing idleness of refresh drivers we only care about
@ -2348,7 +2350,7 @@ nsRefreshDriver::GetIdleDeadlineHint()
// resulting from a tick on the sRegularRateTimer counts as being
// busy but tasks resulting from a tick on sThrottledRateTimer
// counts as being idle.
return sRegularRateTimer->GetIdleDeadlineHint();
return sRegularRateTimer->GetIdleDeadlineHint(aDefault);
}
void