> To have a common CP-resident ESM handler is certainly possible, but it
> would change the CP ACI architecture, moving the interface to *RPI.
That
> is, IMO, too restrictive and prevents useful optimizations.

OK, OK -- Uncle. I don't know if I agree with whether it would be too
restrictive; there are certainly known working examples of similar
architectures in other operating systems (Multics and TOPS-20, for
example), and most of the other tasks you mentioned I can conceive of
ways to do in user space, but we'll wait and see.  

> If we were starting anew, I might agree, but we're coming up on 30
years
> and it is what it is.  The money was spent.  The milk was spilt.  And
the
> water is under the bridge.  

And you're revamping an awful lot of CP internals at the moment to
finish the 64-bit enablement. It's worth bringing up the idea at least. 

> It has a standard, David.  It always has.  You just don't like the
> standard.

Well, discontent has always been the mother of invention...8-)

> It
> is *not*, in fact, beyond the newbie because we have newbies who are
> implementing z/VM for the first time and successfully adding ESMs of
their
> choice on those systems.  

What's clear is that people can follow cookbook instructions. I would
seriously question if they could actually tell you what those steps do,
or understand how to fix it if it breaks. But, maybe that's unrealistic.
I'd certainly prefer to eliminate the incantations if they're avoidable.


> > If it allows the existing CMS clients to connect to Linux in place
of VM
> > TCPIP, then it's what I want.
> You can already do that for some of the clients/servers.  The C-based
> programs all call LE sockets.  LE calls BPX1SOC CSL routine.  Feel
free to
> write your own replacement that implements the transport of your
choice.

Yes. Found that, and it wasn't all that hard. Ugly, but not that hard.
8-)

> As far as the Pascal programs go, I don't think the VMCF interface
will
> survive into the 22nd century. ;-)

Well, that's a relief. 

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