Webrtc series - network transmission 5: select the optimal connection switching

In the last article WebRTC series - Network transmission 4Connection Sort
Middle analysis webrtc How to realize connections Sort , Generally, ranking first is basically the best , however webrtc In order to deal with some special situations , The actual switching logic is still very complicated ; This section mainly analyzes webrtc How to choose the best network , And switch to the optimal network ;
stay webrtc There are many possibilities to trigger the switching logic , Here's the picture ：

This article mainly follows the previous one SortConnectionsAndUpdateState Switching logic analysis after sorting ;

1. obtain top_connection

stay SortConnectionsAndUpdateState Call in function absl::c_stable_sort After sorting connections_ after ࿰