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Federation consumer adds_state_event_ids tweak (#2441)

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* Don't ask roomserver for events we already have in federation API

* Check number of events returned is as expected

* Preallocate array

* Improve shape a bit
This commit is contained in:
Neil Alexander 2022-05-09 16:19:35 +01:00 • committed by GitHub
parent 1a7f4c8aa9
commit 79da75d483
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3 changed files with 28 additions and 33 deletions
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13
roomserver/api/output.go
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@ -163,6 +163,19 @@ type OutputNewRoomEvent struct {
TransactionID *TransactionID `json:"transaction_id,omitempty"`
}
func (o *OutputNewRoomEvent) NeededStateEventIDs() ([]*gomatrixserverlib.HeaderedEvent, []string) {
addsStateEvents := make([]*gomatrixserverlib.HeaderedEvent, 0, 1)
missingEventIDs := make([]string, 0, len(o.AddsStateEventIDs))
for _, eventID := range o.AddsStateEventIDs {
if eventID != o.Event.EventID() {
missingEventIDs = append(missingEventIDs, eventID)
} else {
addsStateEvents = append(addsStateEvents, o.Event)
}
}
return addsStateEvents, missingEventIDs
}
// An OutputOldRoomEvent is written when the roomserver receives an old event.
// This will typically happen as a result of getting either missing events
// or backfilling. Downstream components may wish to send these events to