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fix race condition in GetStream in outgoing streams map

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This commit is contained in:
Marten Seemann 2018-02-22 09:21:59 +08:00
parent 77a4bf17ca
commit 4fa68b0788
6 changed files with 15 additions and 3 deletions
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3
streams_map_outgoing_generic.go
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@ -86,10 +86,11 @@ func (m *outgoingItemsMap) openStreamImpl() (item, error) {
}
func (m *outgoingItemsMap) GetStream(id protocol.StreamID) (item, error) {
m.mutex.RLock()
if id >= m.nextStream {
m.mutex.RUnlock()
return nil, qerr.Error(qerr.InvalidStreamID, fmt.Sprintf("peer attempted to open stream %d", id))
}
m.mutex.RLock()
s := m.streams[id]
m.mutex.RUnlock()
return s, nil