Re: fork/exec patch: pre-CreateProcess finalization

Claudio Natoli wrote:
>
> I wrote:
> > Just to be clear, this would involve turning the BackendList dlllist into
> an
> > array in shared memory, right? If so, a couple of questions:
>
> Bruce Momjian wrote:
> > I assumed a much simpler solution.  I thought we would just have:
> >
> >     struct {
> >         pid_t    pid;
> >         int     cancel_key;
> >     } PidCancel[maxbackend];
> >
> > in shared memory and we would just sequentially scan looking for a pid
> > match?  Is that wrong?
>
> Isn't that basically "turning the BackendList dlllist into an array in
> shared memory"? And I don't think that an array length of maxbackend is
> enough.

Uh, why would you need more than maxbackends?  Can't it be indexed by
slot number --- each backend has a slot?  Maybe I am missing something.

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