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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><!-- Copyright 1997 The Open Group, All Rights Reserved --><title>sched_get_priority_max</title></head><body bgcolor=white><center><font size=2>The Single UNIX ® Specification, Version 2<br>Copyright © 1997 The Open Group</font></center><hr size=2 noshade><h4><a name = "tag_000_008_180"> </a>NAME</h4><blockquote>sched_get_priority_max, sched_get_priority_min - get priority limits(<b>REALTIME</b>)</blockquote><h4><a name = "tag_000_008_181"> </a>SYNOPSIS</h4><blockquote><pre><code>#include <<a href="sched.h.html">sched.h</a>>int sched_get_priority_max(int <i>policy</i>);int sched_get_priority_min(int <i>policy</i>);</code></pre></blockquote><h4><a name = "tag_000_008_182"> </a>DESCRIPTION</h4><blockquote>The<i>sched_get_priority_max()</i>and<i>sched_get_priority_min()</i>functions return the appropriate maximum or minimum, respectfully, for thescheduling policy specified by<i>policy</i>.<p>The value of<i>policy</i>is one of the scheduling policy values defined in<i><a href="sched.h.html"><sched.h></a></i>.</blockquote><h4><a name = "tag_000_008_183"> </a>RETURN VALUE</h4><blockquote>If successful, the<i>sched_get_priority_max()</i>and<i>sched_get_priority_min()</i>functions return the appropriate maximum or minimum values, respectively.If unsuccessful, they return a value of -1 and set<i>errno</i>to indicate the error.</blockquote><h4><a name = "tag_000_008_184"> </a>ERRORS</h4><blockquote>The <i>sched_get_priority_max()</i>and<i>sched_get_priority_min()</i>functions will fail if:<dl compact><dt>[EINVAL]<dd>The value of the <i>policy</i> parameter does not represent a definedscheduling policy.<dt>[ENOSYS]<dd>The<i>sched_get_priority_max()</i>,<i>sched_get_priority_min()</i>and<i><a href="sched_rr_get_interval.html">sched_rr_get_interval()</a></i>functions are not supported by this implementation.</dl></blockquote><h4><a name = "tag_000_008_185"> </a>EXAMPLES</h4><blockquote>None.</blockquote><h4><a name = "tag_000_008_186"> </a>APPLICATION USAGE</h4><blockquote>None.</blockquote><h4><a name = "tag_000_008_187"> </a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_000_008_188"> </a>SEE ALSO</h4><blockquote><i><a href="sched_getparam.html">sched_getparam()</a></i>,<i><a href="sched_setparam.html">sched_setparam()</a></i>,<i><a href="sched_getscheduler.html">sched_getscheduler()</a></i>,<i><a href="sched_rr_get_interval.html">sched_rr_get_interval()</a></i>,<i><a href="sched_setscheduler.html">sched_setscheduler()</a></i>,<i><a href="sched.h.html"><sched.h></a></i>.</blockquote><h4>DERIVATION</h4><blockquote>Derived from the POSIX Realtime Extension (1003.1b-1993/1003.1i-1995)</blockquote><hr size=2 noshade><center><font size=2>UNIX ® is a registered Trademark of The Open Group.<br>Copyright © 1997 The Open Group<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]</font></center><hr size=2 noshade></body></html>⌨️ 快捷键说明
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