Reland "[Battery]: Delay start of TaskQueuePacedSender." Take 3
This is a reland of 89cb65ed663a9000b9f7c90a78039bd85731e9ae
... and f28aade91dcc2cb8f590dc1379ac7ab5c1981909
... and 2072b87261a6505a88561bdeab3e7405d7038eaa
Reason for revert: Failing DuoGroupsMediaQualityTest due to missing
TaskQueuePacedSender::EnsureStarted() in google3.
Fix: This CL adds the logic behind TaskQueuePacedSender::EnsureStarted,
but initializes with |is_started| = true. Once the caller in google3 is
updated, |is_started| can be switched to false by default.
> Original change's description:
> Reason for revert: crashes due to uninitialized pacing_bitrate_
> crbug.com/1190547
> Apparently pacer() is sometimes being used before EnsureStarted()
> Fix: Instead of delaying first call to SetPacingRates(),
> this CL no-ops MaybeProcessPackets() until EnsureStarted()
> is called for the first time.
> Original change's description:
> > [Battery]: Delay start of TaskQueuePacedSender.
> >
> > To avoid unnecessary repeating tasks, TaskQueuePacedSender is started
> > only upon RtpTransportControllerSend::EnsureStarted().
> >
> > More specifically, the repeating task happens in
> > TaskQueuePacedSender::MaybeProcessPackets() every 500ms, using a self
> > task_queue_.PostDelayedTask().
> >
> > Bug: chromium:1152887
> > Change-Id: I72c96d2c4b491d5edb45a30b210b3797165cbf48
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/208560
> > Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
> > Reviewed-by: Henrik Boström <hbos@webrtc.org>
> > Reviewed-by: Erik Språng <sprang@webrtc.org>
> > Cr-Commit-Position: refs/heads/master@{#33421}
>
> Bug: chromium:1152887
> Change-Id: I9aba4882a64bbee7d97ace9059dea8a24c144f93
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/212880
> Reviewed-by: Erik Språng <sprang@webrtc.org>
> Reviewed-by: Henrik Boström <hbos@webrtc.org>
> Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#33554}
Bug: chromium:1152887
Change-Id: Ie365562bd83aefdb2757a65e20a4cf3eece678b9
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/213000
Reviewed-by: Henrik Boström <hbos@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
Cr-Commit-Position: refs/heads/master@{#33629}
diff --git a/modules/pacing/task_queue_paced_sender.h b/modules/pacing/task_queue_paced_sender.h
index dc4c124..a593069 100644
--- a/modules/pacing/task_queue_paced_sender.h
+++ b/modules/pacing/task_queue_paced_sender.h
@@ -55,6 +55,9 @@
~TaskQueuePacedSender() override;
+ // Ensure that necessary delayed tasks are scheduled.
+ void EnsureStarted();
+
// Methods implementing RtpPacketSender.
// Adds the packet to the queue and calls PacketRouter::SendPacket() when
@@ -150,6 +153,12 @@
// Last time stats were updated.
Timestamp last_stats_time_ RTC_GUARDED_BY(task_queue_);
+ // Indicates if this task queue is started. If not, don't allow
+ // posting delayed tasks yet.
+ // TODO(crbug.com/1152887): Initialize to false once all users call
+ // EnsureStarted().
+ bool is_started_ RTC_GUARDED_BY(task_queue_) = true;
+
// Indicates if this task queue is shutting down. If so, don't allow
// posting any more delayed tasks as that can cause the task queue to
// never drain.
