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matrix-rust-sdk/labs/multiverse
Ivan Enderlin be404f6666 feat(sdk): Subscribe to many rooms only via Sliding Sync.
This patch changes the `SlidingSync::subscribe_to_room` method to
`subscribe_to_rooms`. Note the plural form. It's now mandatory to
subscribe to a set of rooms. The idea is to avoid calling this method
repeatedly. Why? Because each time the method is called, it sends a
`SlidingSyncInternalMessage` of kind `SyncLoopSkipOverCurrentIteration`,
i.e. it cancels the in-flight sliding sync request, to start over with
a new one (with the new room subscription). A problem arises when the
async runtime (here, Tokio) is busy: in this case, the internal message
channel can be filled pretty easily because its size is 8. Messages
are not consumed as fast as they are inserted. By changing this API:
subscribing to multiple rooms will result in a single internal message,
instead of one per room.

Consequently, the rest of the patch moves the `subscribe` method of
`room_list_service::Room` to `room_list_service::RoomListService`
because it now concerns multiple rooms instead of a single one.
2024-08-09 11:58:59 +03:00
..