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Deeper checking of duplicates

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This commit is contained in:
Neil Alexander 2021-04-16 14:14:53 +01:00
parent b4d1ebf54a
commit 027a957f45
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1 changed files with 20 additions and 0 deletions
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20
roomserver/storage/shared/storage.go
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@ -156,8 +156,28 @@ func (d *Database) AddState(
stateBlockNIDs []types.StateBlockNID,
state []types.StateEntry,
) (stateNID types.StateSnapshotNID, err error) {
if len(stateBlockNIDs) > 0 {
// Check to see if the event already appears in any of the existing state
// blocks. If it does then we should not add it again, as this will just
// result in excess state blocks and snapshots.
// TODO: Investigate why this is happening - probably input_events.go!
blocks, berr := d.StateBlockTable.BulkSelectStateBlockEntries(ctx, stateBlockNIDs)
if berr != nil {
return 0, fmt.Errorf("d.StateBlockTable.BulkSelectStateBlockEntries: %w", berr)
}
for i := len(state) - 1; i >= 0; i-- {
for _, events := range blocks {
for _, event := range events {
if state[i].EventNID == event {
state = append(state[:i], state[i+1:]...)
}
}
}
}
}
err = d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
if len(state) > 0 {
// If there's any state left to add then let's add new blocks.
var stateBlockNID types.StateBlockNID
stateBlockNID, err = d.StateBlockTable.BulkInsertStateData(ctx, txn, state)
if err != nil {