Program name - identifying the currently running program

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Problem:

Is there any way to know the name of the program that is currently running, besides calling another program and in that program using the "C$CALLEDBY" routine?

Resolution:

In version 6.2.0 the following C$MYFILE library routine was introduced.

This routine returns the filename of the disk file containing the currently executing program.    Here is an example of how to use it:

       WORKING-STORAGE SECTION.

       77  PROGRAM-NAME pic x(80) value spaces.

       77  CALL-STATUS pic s99 value 0.

       Main Section.

                CALL "C$MYFILE"  

               USING PROGRAM-NAME  

               GIVING CALL-STATUS.

               display   program-name.

                accept OMITTED.

                Stop Run.

Where CALL-STATUS PIC contains one of the following values:

1   PROGRAM-NAME was filled successfully

-1 Program name unknown

When successfully called, it indicates the name of the disk file containing the currently executing program, if it is known, for example:

C:\Program Files\Acucorp\Acucbl800\AcuGT\sample\acubench\object\File1.acu

The runtime will use as much space for the name of the file as the COBOL program allows.

The PROGRAM-NAME parameter will contain the filename just as the runtime received it.  

If the program is part of a COBOLl object library, for example, mylib.lib contains File1.acu, along with other COBOL objects; after calling the "C$MYFILE" library routine, PROGRAM-NAME will have a value of:

C:\Program Files\Acucorp\Acucbl800\AcuGT\sample\acubench\object\mylib.lib

which is the COBOL library name instead the name of the program.

Old KB# 3173
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