Avoid delivering websocket frames twice on EOF. #368
Merged
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Motivation:
Unfortunately as a result of #108 the WebSocketFrameDecoder can emit a
WebSocketFrame more than once if the user closes the connection in
channelRead, or any other callback while decode() is on the call stack.
This is obviously less than ideal, as it can allow multiple delivery of
frames.
Modifications:
Given WebSocketFrameDecoder a no-op implementation of decodeLast.
Result:
No multi-delivery of frames.