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https://github.com/matrix-org/dendrite
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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.
28 lines
1.1 KiB
Go
28 lines
1.1 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 StreamProvider interface {
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Setup(ctx context.Context, snapshot storage.DatabaseTransaction)
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// Advance will update the latest position of the stream based on
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// an update and will wake callers waiting on StreamNotifyAfter.
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Advance(latest types.StreamPosition)
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// CompleteSync will update the response to include all updates as needed
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// for a complete sync. It will always return immediately.
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CompleteSync(ctx context.Context, snapshot storage.DatabaseTransaction, req *types.SyncRequest) types.StreamPosition
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// IncrementalSync will update the response to include all updates between
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// the from and to sync positions. It will always return immediately,
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// making no changes if the range contains no updates.
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IncrementalSync(ctx context.Context, snapshot storage.DatabaseTransaction, req *types.SyncRequest, from, to types.StreamPosition) types.StreamPosition
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// LatestPosition returns the latest stream position for this stream.
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LatestPosition(ctx context.Context) types.StreamPosition
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}
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