[GitHub] [rocketmq] The-Gamer-01 commented on issue #5462: About RemotingCommand.decode parse header is a repeated calculation

Fri, 11 Nov 2022 10:37:17 -0800 


The-Gamer-01 commented on issue #5462:
URL: https://github.com/apache/rocketmq/issues/5462#issuecomment-1312059096

   > > in org.apache.rocketmq.remoting.protocol.RemotingCommand.decode 
method，Through ByteBuf calculate command header is a repeated operation 
![9d46829acedd84860f01afeee22947a](https://user-images.githubusercontent.com/26542900/199681279-30bf2d27-2eb8-44e8-accf-69f79a3ffe9b.png)
   > 
   > This is not a repeated operation. This operation is to solve the problem 
of java coding. You can search for "the meaning of doing 0xFFFFF & operation" 
with the browser~
   
   Can you tell me the meaning of doing 0xFFFFFF & operation？I tried to search 
the browser but didn't find the relevant results.please.


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