I put some info printing to my code in order to examine where function execution breaks. Now it lookes like that:
Here is also console output from client, when server is broken:
Remarks:
1. Don't worry about those AAAAA... in buffer. I made memset(&buffer, 65...) at the beginning in order to better visualise if there something changes in the buffer, apparently not.
2. As you can see, menu position 5 has been invoked twice. As I said before, first time send does not return any error, also recv neither returns any error nor changes the buffer. Second time program quits.
It is a very strange situation. For now I don't even know where to find a mistake
You haven't put an print statements in for recv() so we don't know how many bytes it received, if any.
Hmm... Perhaps you're off by one communication? As in, there's data sitting in the buffer that wasn't read last time? There's no guarantee you're going to get it all in one recv(), after all, you have to know how much is coming (or use a delimiter) to know when to stop.
What I was getting at is, we haven't seen the socket setup but I'm assuming they're non-blocking TCP, so the first send() might put out 150 bytes, then you come around and get an error but the ERR() macro has a kill(0,SIGKILL) so you kill yourself before you print it to the terminal.
Getting rid of ERR does not help, because this if ((send...) < 0) condition is never fulfilled. It looks like send() kills program. It sounds crazy.
I have put my whole code on github: https://github.com/chelmsford/Scrabble
Maybe you will find something what I can't see.
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Hi,
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Why this happens?
How to solve this?
$netstat -na |grep 9325
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