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don't set receive buffer if it is already large enough (#3407)

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Chao Fei 2022-05-12 19:24:37 +08:00 • committed by GitHub
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commit b9a77af8f9
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packet_handler_map.go
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@ -104,6 +104,7 @@ func setReceiveBuffer(c net.PacketConn, logger utils.Logger) error {
}
if size >= protocol.DesiredReceiveBufferSize {
logger.Debugf("Conn has receive buffer of %d kiB (wanted: at least %d kiB)", size/1024, protocol.DesiredReceiveBufferSize/1024)
return nil
}
if err := conn.SetReadBuffer(protocol.DesiredReceiveBufferSize); err != nil {
return fmt.Errorf("failed to increase receive buffer size: %w", err)