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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `pthread_sigmask` fn in crate `nix`."><meta name="keywords" content="rust, rustlang, rust-lang, pthread_sigmask"><title>nix::sys::signal::pthread_sigmask - Rust</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><script src="../../../storage.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="shortcut icon" href="../../../favicon.ico"><style type="text/css">#crate-search{background-image:url("../../../down-arrow.svg");}</style></head><body class="rustdoc fn"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../../nix/index.html'><div class='logo-container'><img src='../../../rust-logo.png' alt='logo'></div></a><div class="sidebar-elems"><p class='location'><a href='../../index.html'>nix</a>::<wbr><a href='../index.html'>sys</a>::<wbr><a href='index.html'>signal</a></p><script>window.sidebarCurrent = {name: 'pthread_sigmask', ty: 'fn', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../../settings.html"><img src="../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../../src/nix/sys/signal.rs.html#600-617' title='goto source code'>[src]</a></span><span class='in-band'>Function <a href='../../index.html'>nix</a>::<wbr><a href='../index.html'>sys</a>::<wbr><a href='index.html'>signal</a>::<wbr><a class="fn" href=''>pthread_sigmask</a></span></h1><pre class='rust fn'>pub fn pthread_sigmask(<br> how: <a class="enum" href="../../../nix/sys/signal/enum.SigmaskHow.html" title="enum nix::sys::signal::SigmaskHow">SigmaskHow</a>, <br> set: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&<a class="struct" href="../../../nix/sys/signal/struct.SigSet.html" title="struct nix::sys::signal::SigSet">SigSet</a>>, <br> oldset: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&mut <a class="struct" href="../../../nix/sys/signal/struct.SigSet.html" title="struct nix::sys::signal::SigSet">SigSet</a>><br>) -> <a class="type" href="../../../nix/type.Result.html" title="type nix::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></pre><div class='docblock'><p>Manages the signal mask (set of blocked signals) for the calling thread.</p>
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<p>If the <code>set</code> parameter is <code>Some(..)</code>, then the signal mask will be updated with the signal set.
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The <code>how</code> flag decides the type of update. If <code>set</code> is <code>None</code>, <code>how</code> will be ignored,
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and no modification will take place.</p>
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<p>If the 'oldset' parameter is <code>Some(..)</code> then the current signal mask will be written into it.</p>
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<p>If both <code>set</code> and <code>oldset</code> is <code>Some(..)</code>, the current signal mask will be written into oldset,
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and then it will be updated with <code>set</code>.</p>
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<p>If both <code>set</code> and <code>oldset</code> is None, this function is a no-op.</p>
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<p>For more information, visit the <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_sigmask.html"><code>pthread_sigmask</code></a>,
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or <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/sigprocmask.html"><code>sigprocmask</code></a> man pages.</p>
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