6b17aaad71
Motivation: Each of DefaultChannelPipeline instance creates an head and tail that wraps a handler. These are used to chain together other DefaultChannelHandlerContext that are created once a new ChannelHandler is added. There are a few things here that can be improved in terms of memory usage and initialization time. Modification: - Only generate the name for the tail and head one time as it will never change anyway - Only compute the skipFlags for the tail and head one time as it will never change - Rename DefaultChannelHandlerContext to AbstractChannelHandlerContext and make it abstract - Create a new DefaultChannelHandlerContext that is used when a ChannelHandler is added to the DefaultChannelPipeline - Rename TailHandler to TailContext and HeadHandler to HeadContext and let them extend AbstractChannelHandlerContext. This way we can save 2 object creations per DefaultChannelPipeline Result: - Less memory usage because we have 2 less objects per DefaultChannelPipeline - Faster creation of DefaultChannelPipeline as we not need to compute the skipFlags and not need to generate the name for the head and tail |
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