commit 5b01b5ea63f399d13bbad661f0731893bedd8a5b
author Tommi <tommi@webrtc.org> Tue Feb 03 12:28:48 2026
committer WebRTC LUCI CQ <webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com> Wed Feb 04 15:21:11 2026
tree 63858d9dd7ee0de717f7441c8521d0c6b93f65e3
parent b7ef9ad622984f29c60ccbf1418ecb5cd7bb4a30

Refactor RTCStatsCollector to move stats production to signaling thread

This is CL 1 of 2 that moves population of stats objects from the
networking thread over to the signaling thread.

This CL refactors RTCStatsCollector to reduce the workload on the
network thread. Previously, the network thread was responsible for
gathering raw data and converting it to RTCStats objects. This change
moves the conversion logic (production of RTCStats objects) to the
signaling thread. The network thread now only gathers the necessary raw
data structs and passes them to the signaling thread.

Specific changes:
- ProducePartialResultsOnNetworkThread now gathers data into CollectionContext and posts a task to signaling thread.
- Produce*Stats_n methods are renamed to Produce*Stats_s and moved to run on the signaling thread.
- ProduceRTPStreamStats_n is moved to ProduceRTPStreamStats_s on the signaling thread.
- MergeNetworkReport_s is updated to MergeNetworkFinalResults_s.
- RTCStatsCollector::CollectionContext is updated to hold the intermediate raw data instead of a partial RTCStatsReport.

Bug: webrtc:42222804
Change-Id: I20332f63e0cef0ffdf0df17d0e4c468af90cb8d0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/445000
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#46806}