Subj : Re: signaling threads from a forked child?
To   : comp.programming.threads
From : markh@compro.net
Date : Fri Aug 05 2005 02:36 am

I'm attempting to use pthread_cond_signal in the child directed to  a
particular thread using the parents Mutex and cond variable. I've used
the pthread_atfork call to insure the child has initialized it's copy
of the Mutex and cond variable. I gues thats the real issue here. The
childs copy of the Mutex and cond variable are not the same physical
memory as the parents and parents thread.

 It appears to me that the only real reason that this doesn't  work
might be because the the childs copy of the Mutex and cond variable are
not the same as the parents and parents thread. The thread is in a
pthread_cond_wait.

Does the thread even know or care where or by whom the the cond
variable is satisfied. When the cond  gets satisfied the thread should
wake up.  How do I satisfy the cond  from a child? 

Mark

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