RE: Creating a service program

[Chris Bipes <chris.bipes@xxxxxxxxxxxxxxx>]

Now that's great example and explanation.  I wish IBM made it that clear.
Now how would one find out what program is using what signature so you can
clean up old *PRV signatures when they are no longer in use.  Also how does
this work when you update an existing module with out changing the parms?

Christopher K. Bipes    mailto:ChrisB@Cross-Check.com
Sr. Programmer/Analyst  mailto:Chris_Bipes@Yahoo.com
CrossCheck, Inc.        http://www.cross-check.com
6119 State Farm Drive   Phone: 707 586-0551 x 1102
Rohnert Park CA  94928  Fax: 707 586-1884

If consistency is the hobgoblin of little minds, only geniuses work here.
Karen Herbelin - Readers Digest 3/2000

-----Original Message-----
From: Stone, Brad V (TC) [mailto:bvstone@taylorcorp.com]
Sent: Wednesday, August 23, 2000 10:26 AM
To: 'RPG400-L@midrange.com'
Subject: RE: Creating a service program


You can specify more than one signature.  So, when you add the 4th in your
example, you make a copy of the first export, change it to *PRV for
signature, and add the 4th to the top list.. like this..

STRPGMEXP                        
EXPORT     SYMBOL(Proc1)    
EXPORT     SYMBOL(Proc2)    
EXPORT     SYMBOL(Proc3)    
EXPORT     SYMBOL(Proc4)    
ENDPGMEXP                        
STRPGMEXP  PGMLVL(*PRV)          
EXPORT     SYMBOL(Proc1)    
EXPORT     SYMBOL(Proc2)    
EXPORT     SYMBOL(Proc3)   
ENDPGMEXP         

You will now have to sigs for the service program.  The old programs that
don't need Proc4 don't need to be recompiled because they'll still function
fine with the old sig. 

One thing you do have to watch out for is this.

SRVPGM1 is created and in production.  It's updated, now has 2 sigs, but the
SRVPGM is only in test environment.  Now, a new program is created that uses
SRVPGM1 and is compiled, so it will grab the current sig from SRVPGM1.

If you move NEWPGM into production before the new copy of SRVPGM1, you will
get a signature error.  Just a slight gotcha... :)  When programs are
compiled using a service program, they always grab the *CURRENT signature.

Rare case, but something to be weary of.

Brad               
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