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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