Re: global variables sharing among processes

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Rémi Arnaud (remi++at++remi.engr.sgi.com)
Mon, 9 Jun 1997 12:45:21 -0700 (PDT)

Charlie H. Chang wrote:
>
> I have a Performer program, and when I update some of the global
> variables,
> it doesn't propagate to other processes.
> I thought Performer uses sproc to fork child processes, so all global
> variables are
> shared among child processes. Is that right?

 No, Performer uses fork, which explains your problem.
 You have to use the shared arena to share data between processes,
 furthermore, you have to use pfCycleBuffer to manage the multiple
 values a data can have when used by more than one process in different
 stages of the pfPipe pipeline.

 Best Regards

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