<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>probe::signal.procmask</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2"><link rel="home" href="index.html" title="SystemTap Tapset Reference Manual"><link rel="up" href="ch13.html" title="Chapter 13. Signal Tapset"><link rel="prev" href="re222.html" title="probe::signal.do_action.return"><link rel="next" href="re224.html" title="probe::signal.flush"></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>probe::signal.procmask</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re222.html">Prev</a> </td><th width="60%" align="center">Chapter 13. Signal Tapset</th><td width="20%" align="right"> <a accesskey="n" href="re224.html">Next</a></td></tr></table><hr></div><div class="refentry" title="probe::signal.procmask"><a name="API-signal-procmask"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>probe::signal.procmask — Examining or changing blocked signals </p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><pre class="synopsis">signal.procmask </pre></div><div class="refsect1" title="Values"><a name="id3134793"></a><h2>Values</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>how</code></em></span></dt><dd><p> Indicates how to change the blocked signals; possible values are SIG_BLOCK=0 (for blocking signals), SIG_UNBLOCK=1 (for unblocking signals), and SIG_SETMASK=2 for setting the signal mask. </p></dd><dt><span class="term"><em class="parameter"><code>oldsigset_addr</code></em></span></dt><dd><p> The old address of the signal set (sigset_t) </p></dd><dt><span class="term"><em class="parameter"><code>sigset</code></em></span></dt><dd><p> The actual value to be set for sigset_t (correct?) </p></dd><dt><span class="term"><em class="parameter"><code>sigset_addr</code></em></span></dt><dd><p> The address of the signal set (sigset_t) to be implemented </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="re222.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch13.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re224.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>probe::signal.do_action.return</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>probe::signal.flush</span></td></tr></table></div></body></html>