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<a name="Tasking-runtimes"></a>
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Next: <a href="Middleware-tasking-policies.html#Middleware-tasking-policies" accesskey="n" rel="next">Middleware tasking policies</a>, Up: <a href="Compile_002dtime-configuration.html#Compile_002dtime-configuration" accesskey="u" rel="up">Compile-time configuration</a> [<a href="About-This-Guide.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html#Index" title="Index" rel="index">Index</a>]</p>
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<a name="Tasking-runtimes-1"></a>
<h4 class="subsection">4.1.1 Tasking runtimes</h4>
<p>PolyORB provides several tasking runtimes. The user may select the
most appropriate one, depending on application requirements. The
tasking runtimes determine the constructs PolyORB may use for its
internal synchronizations.
</p>
<ul>
<li> <code>No_Tasking</code>: There is no dependency on the Ada tasking
runtime, middleware is mono-task.
</li><li> <code>Full_Tasking</code>: Middleware uses Ada tasking constructs,
middleware can be configured for multi-tasking.
</li><li> <code>Ravenscar</code> : Middleware uses Ada
tasking constructs, with the limitations of the Ravenscar profile
<cite>[DB98]</cite>. Middleware can be configured for multi-tasking.
<a name="index-Ravenscar"></a>
</li></ul>
<p>See <a href="Tasking-model-in-PolyORB.html#Tasking-model-in-PolyORB">Tasking model in PolyORB</a> for more information on this point.
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