commit de88b08b94b71fde9b43fdca38d39a95fe35889d
author Victor Boivie <boivie@webrtc.org> Mon May 03 13:52:53 2021
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> Mon May 03 16:12:30 2021
tree a1fe3f9ed5e67f617ab8f40fe965beea15c5803a
parent 02e079ff809da021e841b9fc5b111bd3c17021e1

dcsctp: Add TaskQueue based timeout implementation

This is about doing the best with what we have. As delayed tasks can't
be cancelled, and dcSCTP timers will almost always be stopped or
restarted, and will generally only expire on packet loss.

This implementation will post a delayed task whenever a Timeout is
started. Whenever it's stopped or restarted, it will keep the scheduled
delay task running (there's no alternative), but it will also not start
a new delayed task on subsequent starts/restarts. Instead, it will wait
until the original delayed task has triggered, and will then - if the
timer is still running, which it probably isn't - post a new delayed
task with the remainder of the the duration.

There is special handling for when a shorter duration is requested, as
that can't re-use the scheduled task, but that shouldn't be very common.

Bug: webrtc:12614
Change-Id: I7f3269cabf84f80dae3b8a528243414a93d50fc4
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/217223
Reviewed-by: Tommi <tommi@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Victor Boivie <boivie@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33904}