ibm-information-center/dist/eclipse/plugins/i5OS.ic.rzalf_5.4.0.1/rzalfinteract.htm

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<h1 class="topictitle1">How <span class="keyword">i5/OS</span> PASE programs
interact with <span class="keyword">i5/OS</span></h1>
<div><p>As you customize your <span class="keyword">i5/OS™</span> PASE
programs to use <span class="keyword">i5/OS</span> functions,
you need to consider the ways in which your program will interact with them.</p>
</div>
<div>
<ul class="ullinks">
<li class="ulchildlink"><strong><a href="rzalfcommunications.htm">Communications</a></strong><br />
<span class="keyword">i5/OS</span> PASE is
generally compatible with AIX<sup>®</sup> and Linux<sup>®</sup> in sockets communications.</li>
<li class="ulchildlink"><strong><a href="rzalfdatabase.htm">Database</a></strong><br />
<span class="keyword">i5/OS</span> PASE supports
the DB2<sup>®</sup> UDB
for iSeries™ Call
Level Interface (CLI). DB2<sup>®</sup> CLI on AIX<sup>®</sup> and <span class="keyword">i5/OS</span> are
not proper subsets of each other, so there are minor differences in a few
interfaces, and some APIs in one implementation might not exist in another.</li>
<li class="ulchildlink"><strong><a href="rzalfdataconv.htm">Data encoding</a></strong><br />
Most operating systems, such as AIX<sup>®</sup> and Linux<sup>®</sup>, use ASCII character encoding. Most <span class="keyword">i5/OS</span> functions use EBCDIC character
encoding. You can specify a coded character set identifier (CCSID) value for
some <span class="keyword">i5/OS</span> object types
to identify a specific encoding for character data in the object.</li>
<li class="ulchildlink"><strong><a href="rzalffilesystems.htm">File systems</a></strong><br />
<span class="keyword">i5/OS</span> PASE programs
can access any file or resource that is accessible through the integrated
file system, including objects in the QSYS.LIB and QOPT file systems.</li>
<li class="ulchildlink"><strong><a href="rzalfglobalize.htm">Globalization</a></strong><br />
Because the <span class="keyword">i5/OS</span> PASE
run time is based on the AIX<sup>®</sup> run time, <span class="keyword">i5/OS</span> PASE
programs can use the same rich set of programming interfaces for locales,
character string manipulation, date and time services, message catalogs, and
character encoding conversions supported on AIX<sup>®</sup>.</li>
<li class="ulchildlink"><strong><a href="rzalfmessages.htm">Message services</a></strong><br />
<span class="keyword">i5/OS</span> PASE signals
and ILE signals are independent, so it is not possible to directly call a
handler for one signal type by raising the other type of signal.</li>
<li class="ulchildlink"><strong><a href="rzalfprinting.htm">Print output from i5/OS PASE applications</a></strong><br />
You can use the QShell Rfile utility to read and
write output from <span class="keyword">i5/OS</span> PASE
shells.</li>
<li class="ulchildlink"><strong><a href="rzalfpty.htm">Pseudo-terminal</a></strong><br />
<span class="keyword">i5/OS</span> PASE supports
both AT&amp;T and Berkeley Software Distributions (BSD) style devices. From
a programming perspective, these devices work in <span class="keyword">i5/OS</span> PASE
in the same way that they work on AIX<sup>®</sup>.</li>
<li class="ulchildlink"><strong><a href="rzalfsecurity.htm">Security</a></strong><br />
From a security point of view, <span class="keyword">i5/OS</span> PASE
programs are subject to the same security restrictions as any other program
on <span class="keyword">i5/OS</span>.</li>
<li class="ulchildlink"><strong><a href="rzalfworkmgmt.htm">Work management</a></strong><br />
<span class="keyword">i5/OS</span> handles <span class="keyword">i5/OS</span> PASE programs in the same
way it handles any other job on the system.</li>
</ul>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="rzalfusing.htm" title="Your i5/OS PASE program can call other i5/OS programs running in your job, and other i5/OS programs can call procedures in your i5/OS PASE program.">Use i5/OS PASE programs in the i5/OS environment</a></div>
</div>
<div class="reltasks"><strong>Related tasks</strong><br />
<div><a href="rzalfservices.htm" title="If you want your AIX application to take advantage of i5/OS functions that are not directly supported by system-supplied i5/OS PASE shared libraries, you need to perform some additional steps to prepare your application.">Customize i5/OS PASE programs to use i5/OS functions</a></div>
</div>
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