dendrite/syncapi/streams/template_stream.go
John Terzis 478579eea1 Jterzis/update dendrite (#656)
Pulls in upstream latest changes from [dendrite-fork
](https://github.com/HereNotThere/dendrite)to subtree at
servers/dendrite here.

Co-authored-by: Tak Wai Wong <64229756+tak-hntlabs@users.noreply.github.com>
Co-authored-by: Tak Wai Wong <tak@hntlabs.com>
Co-authored-by: John Terzis <john@hntlabs.com>
2022-10-17 15:59:47 -07:00

41 lines
729 B
Go

package streams
import (
"context"
"sync"
"github.com/matrix-org/dendrite/syncapi/storage"
"github.com/matrix-org/dendrite/syncapi/types"
)
type DefaultStreamProvider struct {
DB storage.Database
latest types.StreamPosition
latestMutex sync.RWMutex
}
func (p *DefaultStreamProvider) Setup(
ctx context.Context, snapshot storage.DatabaseTransaction,
) {
}
func (p *DefaultStreamProvider) Advance(
latest types.StreamPosition,
) {
p.latestMutex.Lock()
defer p.latestMutex.Unlock()
if latest > p.latest {
p.latest = latest
}
}
func (p *DefaultStreamProvider) LatestPosition(
ctx context.Context,
) types.StreamPosition {
p.latestMutex.RLock()
defer p.latestMutex.RUnlock()
return p.latest
}