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authorMartin Pitt <martin.pitt@ubuntu.com>2015-06-22 17:16:03 +0200
committerMartin Pitt <martin.pitt@ubuntu.com>2015-06-22 17:16:03 +0200
commit86f210e9c914ba12477d4b2e7fa6f5cfa196a324 (patch)
treedce357d070f98e916be8861d669f9127b0719629 /man/sd_event_unref.html
parente3bff60a6ef3419af32552b54bf19331e59c01c9 (diff)
downloadsystemd-86f210e9c914ba12477d4b2e7fa6f5cfa196a324.tar.gz
Imported Upstream version 221
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@@ -18,8 +18,8 @@
</style><a href="index.html">Index </a>·
<a href="systemd.directives.html">Directives </a>·
<a href="../python-systemd/index.html">Python </a>·
- <a href="../libudev/index.html">libudev </a>·
- <a href="../libudev/index.html">gudev </a><span style="float:right">systemd 220</span><hr><div class="refentry"><a name="sd_event_new"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>sd_event_new, sd_event_default, sd_event_ref, sd_event_unref — Acquire and release an event loop object</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><pre class="funcsynopsisinfo">#include &lt;systemd/sd-bus.h&gt;</pre><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_event_new</b>(</code></td><td>sd_bus **<var class="pdparam">event</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_event_default</b>(</code></td><td>sd_bus **<var class="pdparam">event</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">sd_bus *<b class="fsfunc">sd_event_ref</b>(</code></td><td>sd_bus *<var class="pdparam">event</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">sd_bus *<b class="fsfunc">sd_event_unref</b>(</code></td><td>sd_bus *<var class="pdparam">event</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="idm140695851420224"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><code class="function">sd_event_new()</code> allocates a new event
+
+ <span style="float:right">systemd 221</span><hr><div class="refentry"><a name="sd_event_new"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>sd_event_new, sd_event_default, sd_event_ref, sd_event_unref — Acquire and release an event loop object</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><pre class="funcsynopsisinfo">#include &lt;systemd/sd-bus.h&gt;</pre><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_event_new</b>(</code></td><td>sd_bus **<var class="pdparam">event</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">sd_event_default</b>(</code></td><td>sd_bus **<var class="pdparam">event</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">sd_bus *<b class="fsfunc">sd_event_ref</b>(</code></td><td>sd_bus *<var class="pdparam">event</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">sd_bus *<b class="fsfunc">sd_event_unref</b>(</code></td><td>sd_bus *<var class="pdparam">event</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="idm47172650131744"></a><h2 id="Description">Description<a class="headerlink" title="Permalink to this headline" href="#Description">¶</a></h2><p><code class="function">sd_event_new()</code> allocates a new event
loop object. The event loop object is returned in the
<em class="parameter"><code>event</code></em> parameter. After use, drop
the returned reference with
@@ -48,17 +48,17 @@
<code class="function">sd_event_default()</code> will result in two
distinct objects. Note that in order to free an event loop object,
all remaining event sources of the event loop also need to be
- freed as each keeps a reference to it.</p></div><div class="refsect1"><a name="idm140695851410864"></a><h2 id="Return Value">Return Value<a class="headerlink" title="Permalink to this headline" href="#Return%20Value">¶</a></h2><p>On success, <code class="function">sd_event_new()</code> and
+ freed as each keeps a reference to it.</p></div><div class="refsect1"><a name="idm47172650122384"></a><h2 id="Return Value">Return Value<a class="headerlink" title="Permalink to this headline" href="#Return%20Value">¶</a></h2><p>On success, <code class="function">sd_event_new()</code> and
<code class="function">sd_event_default()</code> return 0 or a positive
integer. On failure, they return a negative errno-style error
code. <code class="function">sd_event_ref()</code> always returns a pointer
to the event loop object passed
in. <code class="function">sd_event_unref()</code> always returns
- <code class="constant">NULL</code>.</p></div><div class="refsect1"><a name="idm140695851406720"></a><h2 id="Errors">Errors<a class="headerlink" title="Permalink to this headline" href="#Errors">¶</a></h2><p>Returned errors may indicate the following problems:</p><div class="variablelist"><dl class="variablelist"><dt id="-ENOMEM"><span class="term"><code class="constant">-ENOMEM</code></span><a class="headerlink" title="Permalink to this term" href="#-ENOMEM">¶</a></dt><dd><p>Not enough memory to allocate the object.</p></dd><dt id="-EMFILE"><span class="term"><code class="constant">-EMFILE</code></span><a class="headerlink" title="Permalink to this term" href="#-EMFILE">¶</a></dt><dd><p>The maximum number of event loops has been allocated.</p></dd></dl></div></div><div class="refsect1"><a name="idm140695851402368"></a><h2 id="Notes">Notes<a class="headerlink" title="Permalink to this headline" href="#Notes">¶</a></h2><p><code class="function">sd_event_new()</code> and the other functions
+ <code class="constant">NULL</code>.</p></div><div class="refsect1"><a name="idm47172650118240"></a><h2 id="Errors">Errors<a class="headerlink" title="Permalink to this headline" href="#Errors">¶</a></h2><p>Returned errors may indicate the following problems:</p><div class="variablelist"><dl class="variablelist"><dt id="-ENOMEM"><span class="term"><code class="constant">-ENOMEM</code></span><a class="headerlink" title="Permalink to this term" href="#-ENOMEM">¶</a></dt><dd><p>Not enough memory to allocate the object.</p></dd><dt id="-EMFILE"><span class="term"><code class="constant">-EMFILE</code></span><a class="headerlink" title="Permalink to this term" href="#-EMFILE">¶</a></dt><dd><p>The maximum number of event loops has been allocated.</p></dd></dl></div></div><div class="refsect1"><a name="idm47172650113888"></a><h2 id="Notes">Notes<a class="headerlink" title="Permalink to this headline" href="#Notes">¶</a></h2><p><code class="function">sd_event_new()</code> and the other functions
described here are available as a shared library, which can be
compiled and linked to with the
<code class="constant">libsystemd</code> <a href="http://linux.die.net/man/1/pkg-config"><span class="citerefentry"><span class="refentrytitle">pkg-config</span>(1)</span></a>
- file.</p></div><div class="refsect1"><a name="idm140695851399184"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p>
+ file.</p></div><div class="refsect1"><a name="idm47172650110704"></a><h2 id="See Also">See Also<a class="headerlink" title="Permalink to this headline" href="#See%20Also">¶</a></h2><p>
<a href="systemd.html"><span class="citerefentry"><span class="refentrytitle">systemd</span>(1)</span></a>,
<a href="sd-event.html"><span class="citerefentry"><span class="refentrytitle">sd-event</span>(3)</span></a>,
<a href="sd_event_add_io.html"><span class="citerefentry"><span class="refentrytitle">sd_event_add_io</span>(3)</span></a>,