netty中的ChannelBuffer.copy()和ChannelBuffer.duplicate()有什么区别 [英] What's the difference between ChannelBuffer.copy() and ChannelBuffer.duplicate() in netty

问题描述

ChannelBuffer.copy()和ChannelBuffer.duplicate()有什么区别?

What's the difference between ChannelBuffer.copy() and ChannelBuffer.duplicate()?

在 netty中的多个处理程序中，我最终遇到了一个问题，如果我解决了这个问题传递了ChannelBuffer的副本，或者如果我在其上调用了副本，但是我不确定应该使用哪个副本，并且javadoc无法帮助我知道应该使用哪个副本.

In Multiple handlers in netty I ended up coming across a problem that was fixed if I passed a copy of a ChannelBuffer or if I called duplicate on it, but I'm not sure which one should be used, and the javadoc doesn't help to know which one I should be using.

推荐答案

copy()创建一个全新的缓冲区(逐字节).

copy() creates an entirely new buffer (byte-for-byte).

duplicate()创建一个共享原始缓冲区数据但具有自己索引的缓冲区.

duplicate() creates a buffer which shares the original buffer's data, but with its own indexes.

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