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Editorial Team
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Asked: 2026-05-18T11:34:43+00:00

I’ve experimented a bit with async TCP socket messages between two programs, for passing

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I’ve experimented a bit with async TCP socket messages between two programs, for passing data, numbers and/or text. What I’ve done is to use a keyword in the start of each message, and then seperate the values with the “|” character. So a message may look like this:

“DATA|490|40517.9328222222|1|6|11345|11347|11344|11345|106|40517.8494212963”

I set the read buffer size to 1024, as most of the messages will be within that length. However sometimes I may send rapidly many short messages where several together are less than 1024 characters, and it seems then it will be read in one go. And if I send a message longer than 1024 characters, it will be split. So I’m looking for some advice on how to handle this. Should I use some special characters to start and/or end each message? Would appreciate some tips on how you do this..

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1 Answer

  1. Editorial Team

    The simplest way would be to send the message length at the beginning of each message, serialized in such a way that it will work on little-endian and big-endian hardware.

    This could help your receiver preallocate its receive buffer efficiently too.

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