open-consul/contributing/streaming/framing-events.mmd

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graph TD
SubscribeIndex0[Subscribe, index = 0, no snapshot]
SubscribeIndexNot0[Subscribe, index > 0, with snapshot]
SubscribeIndex0 --->|if events in topic| Snapshot
Snapshot --> EndOfSnapshot
SubscribeIndex0 ------->|no events in topic| EndOfSnapshot
EndOfSnapshot --> EventStream
SubscribeIndexNot0 -->|if index != TopicBuffer.Head| NewSnapshotToFollow
NewSnapshotToFollow ---> Snapshot
SubscribeIndexNot0 -->|if index == TopicBuffer.Head| EventStream
class EndOfSnapshot,NewSnapshotToFollow framing
classDef framing fill:#FFD700,stroke:#333