diff options
Diffstat (limited to 'man/sd_event_get_fd.xml')
| -rw-r--r-- | man/sd_event_get_fd.xml | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/man/sd_event_get_fd.xml b/man/sd_event_get_fd.xml deleted file mode 100644 index f68752dd0e..0000000000 --- a/man/sd_event_get_fd.xml +++ /dev/null @@ -1,140 +0,0 @@ -<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*--> -<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" -"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> - -<!-- - This file is part of systemd. - - Copyright 2014 Zbigniew Jędrzejewski-Szmek - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. ---> - -<refentry id="sd_event_get_fd" xmlns:xi="http://www.w3.org/2001/XInclude"> - - <refentryinfo> - <title>sd_event_get_fd</title> - <productname>systemd</productname> - - <authorgroup> - <author> - <contrib>More text</contrib> - <firstname>Zbigniew</firstname> - <surname>Jędrzejewski-Szmek</surname> - <email>zbyszek@in.waw.pl</email> - </author> - </authorgroup> - </refentryinfo> - - <refmeta> - <refentrytitle>sd_event_get_fd</refentrytitle> - <manvolnum>3</manvolnum> - </refmeta> - - <refnamediv> - <refname>sd_event_get_fd</refname> - - <refpurpose>Obtain a file descriptor to poll for event loop events</refpurpose> - </refnamediv> - - <refsynopsisdiv> - <funcsynopsis> - <funcsynopsisinfo>#include <systemd/sd-event.h></funcsynopsisinfo> - - <funcprototype> - <funcdef>int <function>sd_event_get_fd</function></funcdef> - <paramdef>sd_event *<parameter>event</parameter></paramdef> - </funcprototype> - - </funcsynopsis> - </refsynopsisdiv> - - <refsect1> - <title>Description</title> - - <para><function>sd_event_get_fd()</function> returns the file - descriptor that an event loop object returned by the - <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry> - function uses to wait for events. This file descriptor may itself - be polled for - <constant>POLLIN</constant>/<constant>EPOLLIN</constant> - events. This makes it possible to embed an - <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry> - event loop into another, possibly foreign, event loop.</para> - - <para>The returned file descriptor refers to an <citerefentry - project='man-pages'><refentrytitle>epoll</refentrytitle><manvolnum>7</manvolnum></citerefentry> - object. It is recommended not to alter it by invoking - <citerefentry - project='man-pages'><refentrytitle>epoll_ctl</refentrytitle><manvolnum>2</manvolnum></citerefentry> - on it, in order to avoid interference with the event loop's inner - logic and assumptions.</para> - </refsect1> - - <refsect1> - <title>Return Value</title> - - <para>On success, <function>sd_event_get_fd()</function> returns a - non-negative file descriptor. On failure, it returns a negative - errno-style error code.</para> - </refsect1> - - <refsect1> - <title>Errors</title> - - <para>Returned errors may indicate the following problems:</para> - - <variablelist> - <varlistentry> - <term><constant>-EINVAL</constant></term> - - <listitem><para><parameter>event</parameter> is not a valid - pointer to an <structname>sd_event</structname> structure. - </para></listitem> - </varlistentry> - - <varlistentry> - <term><constant>-ECHILD</constant></term> - - <listitem><para>The event loop has been created in a different process.</para></listitem> - - </varlistentry> - </variablelist> - </refsect1> - - <refsect1> - <title>Examples</title> - - <example> - <title>Integration in the GLib event loop</title> - - <programlisting><xi:include href="glib-event-glue.c" parse="text" /></programlisting> - </example> - </refsect1> - - <xi:include href="libsystemd-pkgconfig.xml" /> - - <refsect1> - <title>See Also</title> - - <para> - <citerefentry><refentrytitle>sd-event</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_event_new</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_event_wait</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry project='man-pages'><refentrytitle>epoll_ctl</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry project='man-pages'><refentrytitle>epoll</refentrytitle><manvolnum>7</manvolnum></citerefentry> - </para> - </refsect1> - -</refentry> |