[Info-vax] Looking into C-include files on VMS

[Bob Eager]

On Wed, 28 Oct 2009 21:29:51 +0000, Joerg Schilling wrote:

> In article <7kpigjF3af5v3U3 at mid.individual.net>, Bob Eager 
> <rde42 at spamcop.net> wrote:
>>On Tue, 27 Oct 2009 20:26:50 -0400, Richard B. Gilbert wrote:
>>
>>> VMS did not have a fork command.  It's a "Unixism".  SPAWN will create
>>> a subprocess.  See HELP SPAWN.  It's a whole different programming
>>> paradigm.  We have managed to get along without fork() for about
>>> thirty years.
>>
>>But with some loss of functionality...  (ducks)
> 
> fork()/exec() are in the POSIX standard for a long time.
> 
> As there is no unique spawn() interface but many different and
> incompatible implementations, there was posix_spawn() added very
> recently and it still has a cruical interface in case you like to
> redirect stdin/stdout/stderr.
> 
> BTW: spawn() is similar to vfork()+exec()

You miss the point. They are talking about VMS SPAWN, which is unlike 
vfork()+exec(). It is nearer to creating a new (empty) process and 
loading a program into it.



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