Re: [UnixOS2] waitpid : why does this not work?

Thomas Hoffmann wrote:

I'm not an expert in signals but, since you've got that many responses,
I'll try to answer your questions. ;-)


> I did not find too many discussion about waitpid() on older OS/2+emx
> archives, so I will ask this here:
> 
> According to some sample code e.g. in the glibc documentation something
> like this should collect all the children of a process in a signal
> handler for SIGCLD/SIGCHLD:

[code]

> But it does not work at all for me: an infinite loop starts as soon as
> this handler is entered.

[snip]

SIGCHLD is different on OS/2. This means you'd better forget about
what you've read in any Unix docs. If you use -Zsys, you don't have
SIGCHLD. If you uncritically compile Unix programs that use a
SIGCHLD handler, there is a good chance that your program will
produce a deadlock. However, I don't know why your code doesn't work.


Bye,
Andreas