Subj : Re: signaling threads from a forked child?
To   : comp.programming.threads
From : Joe Seigh
Date : Tue Aug 09 2005 08:47 am

markh@compro.net wrote:
> Well, I've got everything working. However I don't understand why I
> don't seem to need to use the
> pthread_mutexattr_setpshared/pthread_condattr_setpshared calls at all.
> It appears that just insuring the mutexes/convars are in fact in a SHM
> is all that I needed for this to work.
> 
> Below is a functional test case that works with or without the above
> mentioned funtions.
> Why does it work without them. What are they really doing or what are
> they really indended to be doing for me.
> 
[...]

The standard doesn't require your program to not work without them.  What you're
seeing is undefined behavior as far as the standard is concerned.


-- 
Joe Seigh

When you get lemons, you make lemonade.
When you get hardware, you make software.

.