1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>sys_rt_sigprocmask</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Linux Device Drivers"><link rel="up" href="ch01s07.html" title="Internal Functions"><link rel="prev" href="API-set-current-blocked.html" title="set_current_blocked"><link rel="next" href="API-sys-rt-sigpending.html" title="sys_rt_sigpending"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">sys_rt_sigprocmask</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-set-current-blocked.html">Prev</a>&#160;</td><th width="60%" align="center">Internal Functions</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-sys-rt-sigpending.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-sys-rt-sigprocmask"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>sys_rt_sigprocmask &#8212; 
2     change the list of currently blocked signals
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">long <b class="fsfunc">sys_rt_sigprocmask </b>(</code></td><td>int <var class="pdparam">how</var>, </td></tr><tr><td>&#160;</td><td>sigset_t __user * <var class="pdparam">nset</var>, </td></tr><tr><td>&#160;</td><td>sigset_t __user * <var class="pdparam">oset</var>, </td></tr><tr><td>&#160;</td><td>size_t <var class="pdparam">sigsetsize</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1107965820"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>how</code></em></span></dt><dd><p>
4     whether to add, remove, or set signals
5    </p></dd><dt><span class="term"><em class="parameter"><code>nset</code></em></span></dt><dd><p>
6     stores pending signals
7    </p></dd><dt><span class="term"><em class="parameter"><code>oset</code></em></span></dt><dd><p>
8     previous value of signal mask if non-null
9    </p></dd><dt><span class="term"><em class="parameter"><code>sigsetsize</code></em></span></dt><dd><p>
10     size of sigset_t type
11    </p></dd></dl></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-set-current-blocked.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="ch01s07.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-sys-rt-sigpending.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">set_current_blocked</span>&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;<span class="phrase">sys_rt_sigpending</span></td></tr></table></div></body></html>
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