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Pointerise `types.RoomInfo` in the cache so we can update it in-place in the latest events updater

This commit is contained in:
Neil Alexander 2022-07-13 10:13:34 +01:00
parent 9cd8e9d4b9
commit a1f9b02edf
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GPG Key ID: A02A2019A2BB0944
5 changed files with 15 additions and 16 deletions
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8
internal/caching/cache_roominfo.go
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@ -16,18 +16,18 @@ import (
// a room Info cache. It must only be used from the roomserver only
// It is not safe for use from other components.
type RoomInfoCache interface {
GetRoomInfo(roomID string) (roomInfo types.RoomInfo, ok bool)
StoreRoomInfo(roomID string, roomInfo types.RoomInfo)
GetRoomInfo(roomID string) (roomInfo *types.RoomInfo, ok bool)
StoreRoomInfo(roomID string, roomInfo *types.RoomInfo)
}
// GetRoomInfo must only be called from the roomserver only. It is not
// safe for use from other components.
func (c Caches) GetRoomInfo(roomID string) (types.RoomInfo, bool) {
func (c Caches) GetRoomInfo(roomID string) (*types.RoomInfo, bool) {
return c.RoomInfos.Get(roomID)
}
// StoreRoomInfo must only be called from the roomserver only. It is not
// safe for use from other components.
func (c Caches) StoreRoomInfo(roomID string, roomInfo types.RoomInfo) {
func (c Caches) StoreRoomInfo(roomID string, roomInfo *types.RoomInfo) {
c.RoomInfos.Set(roomID, roomInfo)
}

2
internal/caching/caches.go
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@ -28,7 +28,7 @@ type Caches struct {
RoomServerRoomNIDs Cache[string, types.RoomNID] // room ID -> room NID
RoomServerRoomIDs Cache[int64, string] // room NID -> room ID
RoomServerEvents Cache[int64, *gomatrixserverlib.Event] // event NID -> event
RoomInfos Cache[string, types.RoomInfo] // room ID -> room info
RoomInfos Cache[string, *types.RoomInfo] // room ID -> room info
FederationPDUs Cache[int64, *gomatrixserverlib.HeaderedEvent] // queue NID -> PDU
FederationEDUs Cache[int64, *gomatrixserverlib.EDU] // queue NID -> EDU
SpaceSummaryRooms Cache[string, gomatrixserverlib.MSC2946SpacesResponse] // room ID -> space response

2
internal/caching/impl_ristretto.go
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@ -100,7 +100,7 @@ func NewRistrettoCache(maxCost config.DataUnit, maxAge time.Duration, enableProm
MaxAge: maxAge,
},
},
RoomInfos: &RistrettoCachePartition[string, types.RoomInfo]{ // room ID -> room info
RoomInfos: &RistrettoCachePartition[string, *types.RoomInfo]{ // room ID -> room info
cache: cache,
Prefix: roomInfosCache,
Mutable: true,

13
roomserver/storage/shared/room_updater.go
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@ -225,13 +225,12 @@ func (u *RoomUpdater) SetLatestEvents(
if err := u.d.RoomsTable.UpdateLatestEventNIDs(u.ctx, txn, roomNID, eventNIDs, lastEventNIDSent, currentStateSnapshotNID); err != nil {
return fmt.Errorf("u.d.RoomsTable.updateLatestEventNIDs: %w", err)
}
if roomID, ok := u.d.Cache.GetRoomServerRoomID(roomNID); ok {
if roomInfo, ok := u.d.Cache.GetRoomInfo(roomID); ok {
roomInfo.StateSnapshotNID = currentStateSnapshotNID
roomInfo.IsStub = false
u.d.Cache.StoreRoomInfo(roomID, roomInfo)
}
}
// Since it's entirely possible that this types.RoomInfo came from the
// cache, we should make sure to update that entry so that the next run
// works from live data.
u.roomInfo.StateSnapshotNID = currentStateSnapshotNID
u.roomInfo.IsStub = false
return nil
})
}

6
roomserver/storage/shared/storage.go
View File

@ -139,13 +139,13 @@ func (d *Database) RoomInfo(ctx context.Context, roomID string) (*types.RoomInfo
}
func (d *Database) roomInfo(ctx context.Context, txn *sql.Tx, roomID string) (*types.RoomInfo, error) {
if roomInfo, ok := d.Cache.GetRoomInfo(roomID); ok {
return &roomInfo, nil
if roomInfo, ok := d.Cache.GetRoomInfo(roomID); ok && roomInfo != nil {
return roomInfo, nil
}
roomInfo, err := d.RoomsTable.SelectRoomInfo(ctx, txn, roomID)
if err == nil && roomInfo != nil {
d.Cache.StoreRoomServerRoomID(roomInfo.RoomNID, roomID)
d.Cache.StoreRoomInfo(roomID, *roomInfo)
d.Cache.StoreRoomInfo(roomID, roomInfo)
}
return roomInfo, err
}