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Lazy loading fixes (#2362)

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* Return some more usefully wrapped errors when doing sync

* Remove unnecessary error check

* Couple of guards around `sql.ErrNoRows`

* Nolint
This commit is contained in:
Neil Alexander 2022-04-20 16:06:46 +01:00 committed by GitHub
parent a9f0a390c6
commit bb987cd64b
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 9 additions and 7 deletions
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16
syncapi/streams/stream_pdu.go
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@ -3,6 +3,7 @@ package streams
import ( import (
"context" "context"
"database/sql" "database/sql"
"fmt"
"sync" "sync"
"time" "time"
@ -205,6 +206,7 @@ func (p *PDUStreamProvider) IncrementalSync(
return newPos return newPos
} }
// nolint:gocyclo
func (p *PDUStreamProvider) addRoomDeltaToResponse( func (p *PDUStreamProvider) addRoomDeltaToResponse(
ctx context.Context, ctx context.Context,
device *userapi.Device, device *userapi.Device,
@ -228,13 +230,16 @@ func (p *PDUStreamProvider) addRoomDeltaToResponse(
eventFilter, true, true, eventFilter, true, true,
) )
if err != nil { if err != nil {
return r.From, err if err == sql.ErrNoRows {
return r.To, nil
}
return r.From, fmt.Errorf("p.DB.RecentEvents: %w", err)
} }
recentEvents := p.DB.StreamEventsToEvents(device, recentStreamEvents) recentEvents := p.DB.StreamEventsToEvents(device, recentStreamEvents)
delta.StateEvents = removeDuplicates(delta.StateEvents, recentEvents) // roll back delta.StateEvents = removeDuplicates(delta.StateEvents, recentEvents) // roll back
prevBatch, err := p.DB.GetBackwardTopologyPos(ctx, recentStreamEvents) prevBatch, err := p.DB.GetBackwardTopologyPos(ctx, recentStreamEvents)
if err != nil { if err != nil {
return r.From, err return r.From, fmt.Errorf("p.DB.GetBackwardTopologyPos: %w", err)
} }
// If we didn't return any events at all then don't bother doing anything else. // If we didn't return any events at all then don't bother doing anything else.
@ -268,15 +273,12 @@ func (p *PDUStreamProvider) addRoomDeltaToResponse(
} }
if stateFilter.LazyLoadMembers { if stateFilter.LazyLoadMembers {
if err != nil {
return r.From, err
}
delta.StateEvents, err = p.lazyLoadMembers( delta.StateEvents, err = p.lazyLoadMembers(
ctx, delta.RoomID, true, limited, stateFilter.IncludeRedundantMembers, ctx, delta.RoomID, true, limited, stateFilter.IncludeRedundantMembers,
device, recentEvents, delta.StateEvents, device, recentEvents, delta.StateEvents,
) )
if err != nil { if err != nil && err != sql.ErrNoRows {
return r.From, err return r.From, fmt.Errorf("p.lazyLoadMembers: %w", err)
} }
} }