tree ec56462e5fcd7e57ad99127cbc86bb40a25d4628
parent f0106064ce53cedfc4d09bd5ce044d88457ce804
author Prashanth Swaminathan <prashanthsw@google.com> 1621372890 -0700
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> 1621652971 +0000

pw_multisink: Send notifications to listeners

Listeners can now be attached to multisinks, which are notified when
entries are pushed into the ring buffer or dropped on ingress. Listener
implementations might use this to schedule tasks to fetch entries from
the corresponding drains.

No-Docs-Update-Reason: Doc updates coming in follow-up change.
Change-Id: I16be7bf5792c829bcda38edce5a5be7b5a0f373d
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/39463
Commit-Queue: Prashanth Swaminathan <prashanthsw@google.com>
Reviewed-by: Ewout van Bekkum <ewout@google.com>