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6348486a13
This should transactional snapshot isolation for `/sync` etc requests. For now we don't use repeatable read due to some odd test failures with invites.
61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
package streams
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import (
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"context"
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"github.com/matrix-org/dendrite/syncapi/storage"
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"github.com/matrix-org/dendrite/syncapi/types"
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)
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type SendToDeviceStreamProvider struct {
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DefaultStreamProvider
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}
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func (p *SendToDeviceStreamProvider) Setup(
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ctx context.Context, snapshot storage.DatabaseTransaction,
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) {
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p.DefaultStreamProvider.Setup(ctx, snapshot)
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p.latestMutex.Lock()
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defer p.latestMutex.Unlock()
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id, err := snapshot.MaxStreamPositionForSendToDeviceMessages(ctx)
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if err != nil {
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panic(err)
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}
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p.latest = id
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}
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func (p *SendToDeviceStreamProvider) CompleteSync(
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ctx context.Context,
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snapshot storage.DatabaseTransaction,
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req *types.SyncRequest,
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) types.StreamPosition {
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return p.IncrementalSync(ctx, snapshot, req, 0, p.LatestPosition(ctx))
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}
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func (p *SendToDeviceStreamProvider) IncrementalSync(
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ctx context.Context,
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snapshot storage.DatabaseTransaction,
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req *types.SyncRequest,
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from, to types.StreamPosition,
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) types.StreamPosition {
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// See if we have any new tasks to do for the send-to-device messaging.
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lastPos, events, err := snapshot.SendToDeviceUpdatesForSync(req.Context, req.Device.UserID, req.Device.ID, from, to)
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if err != nil {
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req.Log.WithError(err).Error("p.DB.SendToDeviceUpdatesForSync failed")
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return from
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}
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// Add the updates into the sync response.
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for _, event := range events {
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// skip ignored user events
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if _, ok := req.IgnoredUsers.List[event.Sender]; ok {
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continue
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}
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req.Response.ToDevice.Events = append(req.Response.ToDevice.Events, event.SendToDeviceEvent)
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}
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return lastPos
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}
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