70 lines
4.6 KiB
HTML
70 lines
4.6 KiB
HTML
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<meta name="DC.Title" content="Use the most recently called procedure as a base" />
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<meta name="abstract" content="You can specify the most recently called procedure as the base call stack entry by using the *PGMNAME special value." />
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<meta name="description" content="You can specify the most recently called procedure as the base call stack entry by using the *PGMNAME special value." />
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<title>Use the most recently called procedure as a base</title>
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</head>
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<body id="callrecentasbase"><a name="callrecentasbase"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Use the most recently called procedure as a base</h1>
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<div><p>You can specify the most recently called procedure as the base
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call stack entry by using the *PGMNAME special value. </p>
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<div class="p">Although you may not know the name of a procedure, you may want to send
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a message back to the most recently called procedure of an ILE program. The
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special value *PGMNAME is used with a ILE program name to use the base entry
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name as the name for the most recently called procedure of the identified
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program. The programs in this example are: <ul><li>CLPGM51 is an ILE program with procedures PROCA and PROCB.</li>
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<li>CLPGM52 and CLPGM53 are both OPM programs.</li>
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<li>CLPGM53 is to send a message to CLPGM51 and does not know which procedure
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is the most recently called.</li>
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</ul>
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The send is accomplished using the special value *PGMNAME and the
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program name CLPGM51.</div>
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<p>The special value *PGMNAME is useful if you convert some CL programs, but
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not all CL programs, to ILE programs. For example, CLPGM71 is an OPM CL program;
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CLPGM73 sent messages to CLPGM71 and specifies TOPGMQ(*SAME CLPGM71). If CLPGM71
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is converted to ILE, only the <span class="cmdname">Send Program Message (SNDPGMMSG)</span> command
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with the *PGM name in CLPGM73 (OPM) works. Specifying CLPGM71 as a simple
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name does not work because there was no entry in the call stack for CLPGM71.
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If you change the command to TOPGMQ(*SAME *PGMNAME *NONE CLPGM71), CLPGM73
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sends messages successfully to CLPGM71 regardless of the names you may have
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used for procedure names.</p>
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<p>The special value *PGMNAME can also be used with an OPM program
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name. In this case the effect is the same as if you just used the name. For
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example, TOPGMQ(*SAME *PGMNAME *NONE opmpgm) sends the message to the same
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place as TOPGMQ(*SAME opmpgm). The use of *PGMNAME should be considered when
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you cannot determine whether the message is being sent to an OPM program name
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or and ILE program name.</p>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="callid.htm" title="If a CL procedure is to send a message to an OPM program or another ILE procedure, you must identify the call stack entry to which the message is sent.">Identify a call stack entry</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="callcontrolasbase.htm" title="You can identify the base call stack entry as the one at the nearest control boundary by using the special value *CTLBDY.">Use a control boundary as a base</a></div>
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