hoernschen/dendrite
1
0
Fork 0
mirror of https://github.com/hoernschen/dendrite.git synced 2024-12-27 07:28:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

txn nil guard when rolling back LatestEventsUpdater (#1524)

Browse source 
* txn nil guard when rolling back LatestEventsUpdater

* Spell lint correctly
This commit is contained in:
Kegsay 2020-10-14 17:05:09 +01:00 committed by GitHub
parent 6f12b8f85c
commit e3c2b081c7
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
roomserver/storage/shared/latest_events_updater.go
View file

@ -18,23 +18,30 @@ type LatestEventsUpdater struct {
currentStateSnapshotNID types.StateSnapshotNID
}
func rollback(txn *sql.Tx) {
if txn == nil {
return
}
txn.Rollback() // nolint: errcheck
}
func NewLatestEventsUpdater(ctx context.Context, d *Database, txn *sql.Tx, roomInfo types.RoomInfo) (*LatestEventsUpdater, error) {
eventNIDs, lastEventNIDSent, currentStateSnapshotNID, err :=
d.RoomsTable.SelectLatestEventsNIDsForUpdate(ctx, txn, roomInfo.RoomNID)
if err != nil {
txn.Rollback() // nolint: errcheck
rollback(txn)
return nil, err
}
stateAndRefs, err := d.EventsTable.BulkSelectStateAtEventAndReference(ctx, txn, eventNIDs)
if err != nil {
txn.Rollback() // nolint: errcheck
rollback(txn)
return nil, err
}
var lastEventIDSent string
if lastEventNIDSent != 0 {
lastEventIDSent, err = d.EventsTable.SelectEventID(ctx, txn, lastEventNIDSent)
if err != nil {
txn.Rollback() // nolint: errcheck
rollback(txn)
return nil, err
}
}