Rather than doing a sysread, I prefer a call to a local routine to do all of the sysreads necessary to receive a valid message (ala what oshalla suggested).

There's usually some sort of protocol involved in sending a file (a Start Of Buffer indicator and a length, at the very least before the start of data, and an End Of Buffer indicator at the end). If you receive a partial buffer, and then a second buffer that also starts with a valid SOB indicator, my inclination would be to throw the initial buffer away and log a warning.

Putting all the logic to read a message into a routine encapsulates it from the logic of the program that uses the message once it's received.


In reply to Re: sysread and syswrite in tcp sockets by apl
in thread sysread and syswrite in tcp sockets by rustybar

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