96 lines
4.4 KiB
HTML
96 lines
4.4 KiB
HTML
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<meta name="DC.Title" content="Example 1: Call an i5/OS PASE procedure from within i5/OS programs" />
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<meta name="abstract" content="The example in this topic shows an ILE program calling an i5/OS PASE procedure." />
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<meta name="description" content="The example in this topic shows an ILE program calling an i5/OS PASE procedure." />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Example 1: Call an i5/OS PASE
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procedure from within i5/OS programs</title>
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</head>
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<body id="rzalfileproccallsexamp"><a name="rzalfileproccallsexamp"><!-- --></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">Example 1: Call an <span class="keyword">i5/OS</span> PASE
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procedure from within <span class="keyword">i5/OS</span> programs</h1>
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<div><p>The example in this topic shows an ILE program calling an <span class="keyword">i5/OS™</span> PASE procedure.</p>
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<div class="example"><div class="note"><span class="notetitle">Note:</span> By using the code examples, you agree to
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the terms of the <a href="codedisclaimer.htm">Code license and disclaimer information</a>.</div>
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<pre>#include <stdio.h>
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#include <qp2shell2.h>
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#include <qp2user.h>
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#define JOB_CCSID 0
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int main(int argc, char *argv[])
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{
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QP2_ptr64_t id;
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void *getpid_pase;
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const QP2_arg_type_t signature[] = { QP2_ARG_END };
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QP2_word_t result;
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/*
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* Call QP2SHELL2 to run the i5/OS PASE program
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* /usr/lib/start32, which starts i5/OS PASE in
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* 32-bit mode (and leaves it active on return)
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*/
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QP2SHELL2("/usr/lib/start32");
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/*
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* Qp2dlopen opens the global name space (rather than
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* loading a new shared executable) when the first
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* argument is a null pointer. Qp2dlsym locates the
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* function descriptor for the i5/OS PASE getpid
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* subroutine (exported by shared library libc.a)
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*/
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id = Qp2dlopen(NULL, QP2_RTLD_NOW, JOB_CCSID);
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getpid_pase = Qp2dlsym(id, "getpid", JOB_CCSID, NULL);
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/*
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* Call Qp2CallPase to run the i5/OS PASE getpid
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* function, and print the result. Use Qp2errnop
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* to find and print the i5/OS PASE errno if the
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* function result was -1
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*/
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int rc = Qp2CallPase(getpid_pase,
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NULL, // no argument list
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signature,
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QP2_RESULT_WORD,
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&result)
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printf("i5/OS PASE getpid() = %i\n", result);
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if (result == -1)
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printf("i5/OS errno = %i\n", *Qp2errnop());
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/*
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* Close the Qp2dlopen instance, and then call
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* Qp2EndPase to end i5/OS PASE in this job
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*/
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Qp2dlclose(id);
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Qp2EndPase();
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return 0;
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}</pre>
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</div>
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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="rzalfileproccalls.htm" title="You can call the Qp2CallPase() and Qp2CallPase2() ILE procedures from within other ILE procedures to run an i5/OS PASE program in a job where the i5/OS PASE environment is already running.">Call an i5/OS PASE procedure from within i5/OS programs</a></div>
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