Walt Mankowski on 6 Oct 2017 19:19:06 -0700

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Re: [PLUG] Cobol: was Topic for North this month

On Fri, Oct 06, 2017 at 10:10:42PM -0400, Steve Litt wrote:
> It's a problem well outside of multithreading, I think. Say executable
> A uses subprogram 1, and so does executable B. If executables A and B
> are running at the same time, each accessing subprogram 1 over and
> over, I would think that local vars' static nature would mean A and B
> would clobber each others data within subprogram 1.

We made a lot of use of subprograms at my shop and I never recall this
being an issue. We used Stratus computers, so perhaps it's different
on mainframes. I'd think it would be basically impossible to use
subprograms at all if this were the case, but who knows?

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