fluencelabs/go-libp2p-kad-dht
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fix race condition where we might not close an opened stream.

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This commit is contained in:
Steven Allen 2017-07-26 13:46:40 -07:00
parent a1b973ce3c
commit 13a847a8bb
1 changed files with 5 additions and 8 deletions
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11
notif.go
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@ -55,24 +55,21 @@ func (nn *netNotifiee) Connected(n inet.Network, v inet.Conn) {
for {
s, err := dht.host.NewStream(ctx, v.RemotePeer(), ProtocolDHT, ProtocolDHTOld)
// Canceled.
if ctx.Err() != nil {
return
}
switch err {
case nil:
s.Close()
dht.plk.Lock()
defer dht.plk.Unlock()
// Check if canceled again under the lock.
// Check if canceled under the lock.
if ctx.Err() == nil {
dht.Update(dht.Context(), v.RemotePeer())
}
case io.EOF:
// Connection died but we may still have *an* open connection so try again.
if ctx.Err() == nil {
// Connection died but we may still have *an* open connection (context not canceled) so try again.
continue
}
case mstream.ErrNotSupported:
// Client mode only, don't bother adding them to our routing table
default: