OpenVMS Question

[Peter Bateman]

Hi John:

   I believe PowerHouse uses the C runtime routine "system"

   http://h71000.www7.hp.com/doc/732final/5763/5763pro_059.html#system_routine

Regards,
Peter Bateman
Subject: RE: OpenVMS Question
Date: Thu, 27 Aug 2009 15:28:10 -0500
From: LLitman at manitoba-ehealth.ca
To: resolutebay at yahoo.com
CC: powerh-l at lists.sowder.com



















Hi John, I’m
sure others will eventually give more in depth info.

You’re correct
the run command fires off a subprocess which stays alive until the user exits
their powerhouse session. Most of the users process information is available in
the subprocess with some caveats like process logicals,…. VMS handles it
beautifully and quite easily and you can pass and share some things between the
users process and subprocess. Performance may have more to do with the machine
that vms is running on or how it’s configured or how/what you’re
trying to do.

 



Thanx

       
Lorry











From:
powerh-l-bounces+llitman=manitoba-ehealth.ca at lists.sowder.com [mailto:powerh-l-bounces+llitman=manitoba-ehealth.ca at lists.sowder.com]
On Behalf Of Penney, John

Sent: Thursday, August 27, 2009
12:55 PM

To: power-l

Subject: OpenVMS Question



 


 
  
  
  Dear Listers:
  
  
   
  
  
  Can anyone (25 words or less) explain to me how
  OpenVMS handles the invocation of an OS RUN command from within PH Quick? My
  understanding is that, say, Quick Program "A" performs a Run
  Command "B" statement which would open (spawn) a new session and
  perform whatever that "B: program is supossed to do. If "B"
  opened files, database, transmitted data, etc. it could only do so
  within 'it"s own' session/spawned process? Or am I missing
  something big here? I am not VMS internals kinda guy, but.....from a
  logical viewpoint. I'm a performance concerend individual.
  
  
   
  
  
  Just trying to get my mind clear.
  
  
   
  
  
  TIA and Happy Thursday (fly home this afternoon!)

  

  John M Penney
  
  
  (360)789-8159
  
  
 


 


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