This patch introduces `EmptyChunk`, a new enum used to represent whether
empty chunks must be removed/unlink or kept from the `LinkedChunk`. It
is used by `LinkedChunk::remove_item_at`.
Why is it important? For example, imagine the following situation:
- one inserts a single event in a new chunk (possible if a (sliding)
sync is done with `timeline_limit=1`),
- one inserts many events at the position of the previous event,
with one of the new events being a duplicate of the first event
(possible if a (sliding) sync is done with `timeline_limit=10` this
time),
- prior to this patch, the older event was removed, resulting in an
empty chunk, which was removed from the `LinkedChunk`, invalidating
the insertion position!
So, with this patch:
- `RoomEvents::remove_events` does remove empty chunks, but
- `RoomEvents::remove_events_and_update_insert_position` does NOT remove
empty chunks, they are kept in case the position wants to insert in this
same chunk.
This fixes a problem when doing an incremental sync at launch,
where `NotLoaded` event would not be dispatched until data became
available or timeout is reached, leading to app waiting for it.
Changelog: the parameter `room_info_notable_update_receiver` was removed
from `RoomList::entries_with_dynamic_adapters`, since it could be
inferred internally instead.
Notably, make it super clear what parameters are required to create the
attachment type, since the function doesn't consume the whole
`AttachmentConfig` for realz.
Changelog: The send queue will now store a serialized
`QueuedRequestKind` instead of a raw event, which breaks the format.
As a result, all send queues have been emptied.
This makes it possible to have different kinds of *parent key*, to
update a dependent request. A dependent request waits for the parent key
to be set, before it can be acted upon; before, it could only be an
event id, because a dependent request would only wait for an event to be
sent. In a soon future, we're going to support uploading medias as
requests, and some subsequent requests will depend on this, but won't be
able to rely on an event id (since an upload doesn't return an
event/event id).
Since this changes the format of `DependentQueuedRequest`, which is
directly serialized into the state stores, I've also cleared the table,
to not have to migrate the data in there. Dependent requests are
supposed to be transient anyways, so it would be a bug if they were many
of them in the queue.
Since a migration was needed anyways, I've also removed the `rename`
annotations (that supported a previous format) for the
`DependentQueuedRequestKind` enum.
Breaking: `ffi::Client::resolve_room_alias` now returns `Result<Option<ResolvedRoomAlias>, ClientError>` instead of `Result<ResolvedRoomAlias, ClientError>`. This allows the client to match the 3 possible cases:
- The room alias exists.
- The room alias does not exist.
- The function failed internally.
This should take care of a bug that caused pinned events to be incorrectly removed when the new pinned event ids list was based on an empty one if the required state of the room didn't contain any pinned events info
This patch removes `RoomListService::new_with_encryption`. This feature
is not used, not useful since it's best to use `EncryptionSyncService`,
and it can be racy depending on how it's used. To avoid potential errors
and bugs, it's preferable to remove this code.
Changelog: a new optional `via_server` parameter was added to `sdk::RoomDirectorySearch::search`, to specify which homeserver to use for searching rooms. In the FFI layer, this parameter is called `via_server_name`.
This patch uses the new `Deduplicator` type, along with
`LinkeChunk::remove_item_at` to remove duplicated events. When a new
event is received, the older one is removed.
This patch introduces `Deduplicator`, an efficient type to detect
duplicated events in the event cache. It uses a bloom filter, and
decorates a collection of events with `Decoration`, which an enum that
marks whether an event is unique, duplicated or invalid.
Changelog: Renamed all the send-queue related "events" to "requests", so
as to generalize usage of the send queue to not-events (e.g. medias,
redactions, etc.).
In a next commit, the `QueuedEvent` will be renamed to `QueuedRequest`.
This specifies which kind of request we want to send with the send
queue; for now, it can only be an event.
