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minor bug fix: on join, source peers from gossip[topic] if insufficient peers in fanout[topic] #196

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Oct 5, 2019
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minor bug fix: on join, source peers from gossip[topic] if insufficient peers in fanout[topic] #196

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11 changes: 11 additions & 0 deletions gossipsub.go
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Original file line number Diff line number Diff line change
Expand Up @@ -268,6 +268,17 @@ func (gs *GossipSubRouter) Join(topic string) {

gmap, ok = gs.fanout[topic]
if ok {
if len(gmap) < GossipSubD {
// we need more peers; eager, as this would get fixed in the next heartbeat
more := gs.getPeers(topic, GossipSubD-len(gmap), func(p peer.ID) bool {
// filter our current peers
_, ok := gmap[p]
return !ok
})
for _, p := range more {
gmap[p] = struct{}{}
}
}
gs.mesh[topic] = gmap
delete(gs.fanout, topic)
delete(gs.lastpub, topic)
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