79 lines
5.4 KiB
HTML
79 lines
5.4 KiB
HTML
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Multithreaded applications" />
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<meta name="abstract" content="A thread is the path taken by a program while running, the steps performed, and the order in which the steps are performed." />
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<meta name="description" content="A thread is the path taken by a program while running, the steps performed, and the order in which the steps are performed." />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<title>Multithreaded applications</title>
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</head>
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<body id="rzahwove-ovepo"><a name="rzahwove-ovepo"><!-- --></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">Multithreaded applications</h1>
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<div><p>A <em>thread</em> is the path taken by a program while running, the
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steps performed, and the order in which the steps are performed.</p>
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<p>The term thread is short for <em>thread of control</em>. A thread runs code
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from its starting location in an ordered, predefined sequence for a given
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set of inputs. You can use multiple threads to improve application performance
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by running different application tasks simultaneously.</p>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzahwprint.htm">Printable PDF</a></strong><br />
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Use this to view and print a PDF of this information.</li>
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<li class="ulchildlink"><strong><a href="rzahwas4co.htm">Threads on i5/OS</a></strong><br />
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All programs have at least one thread, referred to as the <em>initial
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thread</em>. In a program with multiple threads, each thread runs its code
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independently of the other threads in the program.</li>
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<li class="ulchildlink"><strong><a href="rzahwtwoco.htm">i5/OS thread management</a></strong><br />
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The concepts described here pertain to all programming languages.</li>
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<li class="ulchildlink"><strong><a href="rzahwsafco.htm">Thread safety</a></strong><br />
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A function is threadsafe if you can start it simultaneously in multiple threads within the same process. A function is threadsafe if and only if all the functions it calls are also threadsafe.</li>
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<li class="ulchildlink"><strong><a href="rzahwmulco.htm">Multithreaded programming techniques</a></strong><br />
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If you are going to write multithreaded applications or server
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applications for <span class="keyword">i5/OS™</span>,
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you should be familiar with several techniques.</li>
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<li class="ulchildlink"><strong><a href="rzahwlanco.htm">Language access and threads</a></strong><br />
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Learn how different languages support threads on <span class="keyword">i5/OS™</span>.
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This information can help you evaluate how threads can be implemented in your
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own application.</li>
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<li class="ulchildlink"><strong><a href="rzahwbugco.htm">Debugging and servicing of multithreaded jobs</a></strong><br />
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Use the concepts and techniques that are described here to learn about debugging and servicing multithreaded jobs:</li>
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<li class="ulchildlink"><strong><a href="rzahwpcoco.htm">Performance considerations in multithreaded applications</a></strong><br />
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There are several performance considerations for multithreaded
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jobs on <span class="keyword">i5/OS™</span>.</li>
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<li class="ulchildlink"><strong><a href="rzahwrzahwcexcodex.htm">Examples: Threads</a></strong><br />
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These examples are used throughout this topic.</li>
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<li class="ulchildlink"><strong><a href="rzahwrelated.htm">Related information for multithreaded applications</a></strong><br />
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Listed here are the manuals (in PDF format), Web sites, and information center topics that relate to the multithreaded applications topic. You can view or print any of the PDFs.</li>
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</ul>
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</div>
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</body>
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</html>
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