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Hi Jeff,

> In a service program with NOMAIN specified, am I correct that there is no
> equivalent to the *INZSR subroutine that is automatically run when the
> service program is first called?

That's correct.

And it's not unique to NOMAIN modules, either.  *INZSR is only called when
the "main" procedure is invoked, it's never called by a subprocedure.  So,
even if you don't use NOMAIN you have to call the main proc of your
service program first if you want *INZSR to work.

The usual workaround is to have your own "initialize" subprocedure that's
called by all of your EXPORTed procs.  For example:

 *+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 * my_init():  My own initialization routine
 *+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
P my_init         B
D my_init         PI

D CEE4RAGE        PR
D   procedure                     *   procptr const
D   feedback                    12A   options(*omit)

D AlreadyInit     S              1N   INZ(*OFF) static

 /free
      if (AlreadyInit = *ON);
         return;
      endif;
      AlreadyInit = *ON;

    ... do your initializations here ...

      // register a procedure to be called when the activation
      // group is destroyed (to clean up any resources you
      // allocated here) -- optional.

      CEE4RAGE(%paddr(my_cleanup): *OMIT);
 /end-free
P                 E

 *+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 *+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
P my_cleanup      B                   export
D my_cleanup      PI
D   peAgMark                    10U 0 options(*nopass)
D   peReason                    10U 0 options(*nopass)
D   peResult                    10U 0 options(*nopass)
D   peUserRc                    10U 0 options(*nopass)

 /free
      ... do cleanup here ...
      return;
 /end-free
P                 E


Then, for every EXPORTed procedure (anything that can be called from
outside the service program) do this:


 *+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 *+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
P my_proc         B                   export
D my_proc         PI

 /free
     my_init();

     ... do whatever work this subprocedure is intended to do ...

 /end-free
P                 E



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