mirror of
https://github.com/matrix-org/dendrite
synced 2024-12-14 23:32:45 +00:00
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.
40 lines
729 B
Go
40 lines
729 B
Go
package streams
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import (
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"context"
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"sync"
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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 DefaultStreamProvider struct {
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DB storage.Database
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latest types.StreamPosition
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latestMutex sync.RWMutex
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}
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func (p *DefaultStreamProvider) Setup(
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ctx context.Context, snapshot storage.DatabaseTransaction,
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) {
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}
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func (p *DefaultStreamProvider) Advance(
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latest types.StreamPosition,
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) {
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p.latestMutex.Lock()
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defer p.latestMutex.Unlock()
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if latest > p.latest {
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p.latest = latest
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}
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}
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func (p *DefaultStreamProvider) LatestPosition(
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ctx context.Context,
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) types.StreamPosition {
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p.latestMutex.RLock()
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defer p.latestMutex.RUnlock()
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return p.latest
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}
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