Threads with pipe and select?

willil · #1 (**permalink**) 07-12-2007

Hi. I just found this site while searching for some info on a problem and thought I'd see if anyone else knows the answer.

I have two threads that are connected by a pipe. Thread A can write to the pipe and Thread B can read the data from the pipe. My problem is that when I use select() in Thread B to detect if the pipe is read ready, the select never returns. (It works with actual separate processes) Is there something special I need to do or don't know about here?

Thanks,
Willi

jgt · #2 (**permalink**) 07-13-2007

You might try posing your question on codecomments.com

willil · #3 (**permalink**) 07-13-2007

Thanks. I'll try codecomments.com and it sounds like I may be missing something if it's working on those platforms. I'm woking on linux, but maybe solaris or hp will show me something.

porter · #4 (**permalink**) 07-13-2007

Quote:

Originally Posted by willil

My problem is that when I use select() in Thread B to detect if the pipe is read ready, the select never returns.

I have happily used this technique on linux(2.4+), Irix 6.5, Solaris 6 upwards, AIX 5.1, Tru64 5.1 and HPUX-11.

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