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dendrite/syncapi/streams/stream_sendtodevice.go
Neil Alexander d8fba52e97
Simplify send-to-device messaging (#1702)
* Simplify send-to-device messaging

* Don't return error if there's no work to do

* Remove SQLite migrations for now

* Tweak Postgres migrations

* Tweaks

* Fixes

* Cleanup separately

* Fix SQLite migration
2021-01-13 17:29:46 +00:00

56 lines
1.5 KiB
Go

package streams
import (
"context"
"github.com/matrix-org/dendrite/syncapi/types"
)
type SendToDeviceStreamProvider struct {
StreamProvider
}
func (p *SendToDeviceStreamProvider) Setup() {
p.StreamProvider.Setup()
id, err := p.DB.MaxStreamPositionForSendToDeviceMessages(context.Background())
if err != nil {
panic(err)
}
p.latest = id
}
func (p *SendToDeviceStreamProvider) CompleteSync(
ctx context.Context,
req *types.SyncRequest,
) types.StreamPosition {
return p.IncrementalSync(ctx, req, 0, p.LatestPosition(ctx))
}
func (p *SendToDeviceStreamProvider) IncrementalSync(
ctx context.Context,
req *types.SyncRequest,
from, to types.StreamPosition,
) types.StreamPosition {
// See if we have any new tasks to do for the send-to-device messaging.
lastPos, events, err := p.DB.SendToDeviceUpdatesForSync(req.Context, req.Device.UserID, req.Device.ID, from, to)
if err != nil {
req.Log.WithError(err).Error("p.DB.SendToDeviceUpdatesForSync failed")
return from
}
if len(events) > 0 {
// Clean up old send-to-device messages from before this stream position.
if err := p.DB.CleanSendToDeviceUpdates(req.Context, req.Device.UserID, req.Device.ID, from); err != nil {
req.Log.WithError(err).Error("p.DB.CleanSendToDeviceUpdates failed")
return from
}
// Add the updates into the sync response.
for _, event := range events {
req.Response.ToDevice.Events = append(req.Response.ToDevice.Events, event.SendToDeviceEvent)
}
}
return lastPos
}