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package streams
import (
"context"
"github.com/matrix-org/dendrite/syncapi/storage"
"github.com/matrix-org/dendrite/syncapi/types"
)
type SendToDeviceStreamProvider struct {
DefaultStreamProvider
}
func (p *SendToDeviceStreamProvider) Setup(
ctx context.Context, snapshot storage.DatabaseTransaction,
) {
p.DefaultStreamProvider.Setup(ctx, snapshot)
p.latestMutex.Lock()
defer p.latestMutex.Unlock()
id, err := snapshot.MaxStreamPositionForSendToDeviceMessages(ctx)
if err != nil {
panic(err)
}
p.latest = id
}
func (p *SendToDeviceStreamProvider) CompleteSync(
ctx context.Context,
snapshot storage.DatabaseTransaction,
req *types.SyncRequest,
) types.StreamPosition {
return p.IncrementalSync(ctx, snapshot, req, 0, p.LatestPosition(ctx))
}
func (p *SendToDeviceStreamProvider) IncrementalSync(
ctx context.Context,
snapshot storage.DatabaseTransaction,
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 := snapshot.SendToDeviceUpdatesForSync(req.Context, req.Device.UserID, req.Device.ID, from, to)
if err != nil {
req.Log.WithError(err).Error("p.DB.SendToDeviceUpdatesForSync failed")
_ = snapshot.Reset()
return from
}
// Add the updates into the sync response.
for _, event := range events {
// skip ignored user events
if _, ok := req.IgnoredUsers.List[event.Sender]; ok {
continue
}
req.Response.ToDevice.Events = append(req.Response.ToDevice.Events, event.SendToDeviceEvent)
}
return lastPos
}
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