close all streams when closing the IETF QUIC streams map

streams_map_incoming_generic.go

@@ -121,6 +121,9 @@ func (m *incomingItemsMap) DeleteStream(id protocol.StreamID) error {
 func (m *incomingItemsMap) CloseWithError(err error) {
 	m.mutex.Lock()
 	m.closeErr = err
+	for _, str := range m.streams {
+		str.closeForShutdown(err)
+	}
 	m.mutex.Unlock()
 	m.cond.Broadcast()
 }