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 <h1 class='fqn'><span class='in-band'>Function <a href='../index.html'>nix</a>::<wbr><a href='index.html'>unistd</a>::<wbr><a class="fn" href=''>daemon</a></span><span class='out-of-band'><span id='render-detail'>
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                </span><a class='srclink' href='../../src/nix/unistd.rs.html#491-494' title='goto source code'>[src]</a></span></h1>
 <pre class='rust fn'>pub fn daemon(nochdir: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>, noclose: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -&gt; <a class="type" href="../../nix/type.Result.html" title="type nix::Result">Result</a>&lt;<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html">()</a>&gt;</pre><div class='docblock'><p>Daemonize this process by detaching from the controlling terminal (see
 <a href="http://man7.org/linux/man-pages/man3/daemon.3.html">daemon(3)</a>).</p>

 <p>When a process is launched it is typically associated with a parent and it,
 in turn, by its controlling terminal/process.  In order for a process to run
 in the &quot;background&quot; it must daemonize itself by detaching itself.  Under
 posix, this is done by doing the following:</p>

 <ol>
 <li>Parent process (this one) forks</li>
 <li>Parent process exits</li>
 <li>Child process continues to run.</li>
 </ol>

 <p><code>nochdir</code>:</p>

 <ul>
 <li><code>nochdir = true</code>: The current working directory after daemonizing will
 be the current working directory.</li>
 <li> <code>nochdir = false</code>: The current working directory after daemonizing will
 be the root direcory, <code>/</code>.</li>
 </ul>

 <p><code>noclose</code>:</p>

 <ul>
 <li><code>noclose = true</code>: The process&#39; current stdin, stdout, and stderr file
 descriptors will remain identical after daemonizing.</li>
 <li><code>noclose = false</code>: The process&#39; stdin, stdout, and stderr will point to
 <code>/dev/null</code> after daemonizing.</li>
 </ul>

 <p>The underlying implementation (in libc) calls both
 <a href="http://man7.org/linux/man-pages/man2/fork.2.html">fork(2)</a> and
 <a href="http://man7.org/linux/man-pages/man2/setsid.2.html">setsid(2)</a> and, as
 such, error that could be returned by either of those functions could also
 show up as errors here.</p>
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	<h1 class='fqn'><span class='in-band'>Function <a href='../index.html'>nix</a>::<wbr><a href='index.html'>unistd</a>::<wbr><a class="fn" href=''>daemon</a></span><span class='out-of-band'><span id='render-detail'>
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	<pre class='rust fn'>pub fn daemon(nochdir: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>, noclose: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -> <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.tuple.html">()</a>></pre><div class='docblock'><p>Daemonize this process by detaching from the controlling terminal (see
	<a href="http://man7.org/linux/man-pages/man3/daemon.3.html">daemon(3)</a>).</p>

	<p>When a process is launched it is typically associated with a parent and it,
	in turn, by its controlling terminal/process. In order for a process to run
	in the "background" it must daemonize itself by detaching itself. Under
	posix, this is done by doing the following:</p>

	<ol>
	<li>Parent process (this one) forks</li>
	<li>Parent process exits</li>
	<li>Child process continues to run.</li>
	</ol>

	<p><code>nochdir</code>:</p>

	<ul>
	<li><code>nochdir = true</code>: The current working directory after daemonizing will
	be the current working directory.</li>
	<li> <code>nochdir = false</code>: The current working directory after daemonizing will
	be the root direcory, <code>/</code>.</li>
	</ul>

	<p><code>noclose</code>:</p>

	<ul>
	<li><code>noclose = true</code>: The process' current stdin, stdout, and stderr file
	descriptors will remain identical after daemonizing.</li>
	<li><code>noclose = false</code>: The process' stdin, stdout, and stderr will point to
	<code>/dev/null</code> after daemonizing.</li>
	</ul>

	<p>The underlying implementation (in libc) calls both
	<a href="http://man7.org/linux/man-pages/man2/fork.2.html">fork(2)</a> and
	<a href="http://man7.org/linux/man-pages/man2/setsid.2.html">setsid(2)</a> and, as
	such, error that could be returned by either of those functions could also
	show up as errors here.</p>
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