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routing: clean up locking on topology change

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This commit is contained in:
Andras Banki-Horvath 2020-01-02 18:01:42 +01:00
parent f289a39c1a
commit 4e0ada9ea3
1 changed files with 2 additions and 5 deletions
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7
routing/notifications.go
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@ -118,10 +118,9 @@ type topologyClient struct {
// graph topology in a non-blocking.
func (r *ChannelRouter) notifyTopologyChange(topologyDiff *TopologyChange) {
r.RLock()
numClients := len(r.topologyClients)
r.RUnlock()
defer r.RUnlock()
// Do not reacquire the lock twice unnecessarily.
numClients := len(r.topologyClients)
if numClients == 0 {
return
}
@ -133,7 +132,6 @@ func (r *ChannelRouter) notifyTopologyChange(topologyDiff *TopologyChange) {
}),
)
r.RLock()
for _, client := range r.topologyClients {
client.wg.Add(1)
@ -157,7 +155,6 @@ func (r *ChannelRouter) notifyTopologyChange(topologyDiff *TopologyChange) {
}
}(client)
}
r.RUnlock()
}
// TopologyChange represents a new set of modifications to the channel graph.