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Transactional isolation for /sync (#2745)

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This should transactional snapshot isolation for `/sync` etc requests.

For now we don't use repeatable read due to some odd test failures with
invites.
This commit is contained in:
Neil Alexander 2022-09-30 12:48:10 +01:00 • committed by GitHub
parent 8a82f10046
commit 6348486a13
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GPG key ID: 4AEE18F83AFDEB23
37 changed files with 1759 additions and 1527 deletions
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19
syncapi/notifier/notifier.go
View file

@ -318,13 +318,20 @@ func (n *Notifier) GetListener(req types.SyncRequest) UserDeviceStreamListener {
func (n *Notifier) Load(ctx context.Context, db storage.Database) error {
n.lock.Lock()
defer n.lock.Unlock()
roomToUsers, err := db.AllJoinedUsersInRooms(ctx)
snapshot, err := db.NewDatabaseSnapshot(ctx)
if err != nil {
return err
}
defer snapshot.Rollback() // nolint:errcheck
roomToUsers, err := snapshot.AllJoinedUsersInRooms(ctx)
if err != nil {
return err
}
n.setUsersJoinedToRooms(roomToUsers)
roomToPeekingDevices, err := db.AllPeekingDevicesInRooms(ctx)
roomToPeekingDevices, err := snapshot.AllPeekingDevicesInRooms(ctx)
if err != nil {
return err
}
@ -338,7 +345,13 @@ func (n *Notifier) LoadRooms(ctx context.Context, db storage.Database, roomIDs [
n.lock.Lock()
defer n.lock.Unlock()
roomToUsers, err := db.AllJoinedUsersInRoom(ctx, roomIDs)
snapshot, err := db.NewDatabaseSnapshot(ctx)
if err != nil {
return err
}
defer snapshot.Rollback() // nolint:errcheck
roomToUsers, err := snapshot.AllJoinedUsersInRoom(ctx, roomIDs)
if err != nil {
return err
}