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Further clarification

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James Ray
2019-01-24 15:29:07 +11:00
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commit d96eeb234f
1 changed files with 5 additions and 3 deletions
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pubsub/gossipsub/README.md
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@@ -236,9 +236,11 @@ Topic membership is controlled by two operations supported by the
router, as part of the pubsub api:
- On `JOIN(topic)` the router joins the topic. In order to do so, if it already has
`D` peers from the `fanout` peers of a topic, then it adds them to `mesh[topic]`,
and notifies them with a `GRAFT(topic)` control message. Otherwise, it
selects `D` peers from `peers.gossipsub[topic]`, and likewise adds them to
`mesh[topic]` and notifies them with a `GRAFT(topic)` control message.
and notifies them with a `GRAFT(topic)` control message. Otherwise, if there are
less than `D` peers (let this number be `x` in the fanout for a topic, then it
still adds them as above (if there are any), and selects the remaining number
of peers (`D-x` from `peers.gossipsub[topic]`, and likewise adds them to
`mesh[topic]` and notifies them with a `GRAFT(topic)` control message.
- On `LEAVE(topic)` the router leaves the topic. It notifies the peers in
`mesh[topic]` with a `PRUNE(topic)` message and forgets `mesh[topic]`.