mirror of
https://github.com/systemd/systemd.git
synced 2024-12-25 01:34:28 +03:00
110 lines
3.5 KiB
XML
110 lines
3.5 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
|
||
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
|
||
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
||
|
||
<!--
|
||
SPDX-License-Identifier: LGPL-2.1+
|
||
|
||
This file is part of systemd.
|
||
|
||
Copyright 2016 Jan Synáček
|
||
|
||
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_journal_has_runtime_files">
|
||
|
||
<refentryinfo>
|
||
<title>sd_journal_has_runtime_files</title>
|
||
<productname>systemd</productname>
|
||
|
||
<authorgroup>
|
||
<author>
|
||
<contrib>Developer</contrib>
|
||
<firstname>Jan</firstname>
|
||
<surname>Synáček</surname>
|
||
<email>jan.synacek@gmail.com</email>
|
||
</author>
|
||
</authorgroup>
|
||
</refentryinfo>
|
||
|
||
<refmeta>
|
||
<refentrytitle>sd_journal_has_runtime_files</refentrytitle>
|
||
<manvolnum>3</manvolnum>
|
||
</refmeta>
|
||
|
||
<refnamediv>
|
||
<refname>sd_journal_has_runtime_files</refname>
|
||
<refname>sd_journal_has_persistent_files</refname>
|
||
<refpurpose>Query availability of runtime or persistent journal files.</refpurpose>
|
||
</refnamediv>
|
||
|
||
<refsynopsisdiv>
|
||
<funcsynopsis>
|
||
<funcsynopsisinfo>#include <systemd/sd-journal.h></funcsynopsisinfo>
|
||
|
||
<funcprototype>
|
||
<funcdef>int <function>sd_journal_has_runtime_files</function></funcdef>
|
||
<paramdef>sd_journal *<parameter>j</parameter></paramdef>
|
||
</funcprototype>
|
||
|
||
<funcprototype>
|
||
<funcdef>int <function>sd_journal_has_persistent_files</function></funcdef>
|
||
<paramdef>sd_journal *<parameter>j</parameter></paramdef>
|
||
</funcprototype>
|
||
|
||
</funcsynopsis>
|
||
</refsynopsisdiv>
|
||
|
||
<refsect1>
|
||
<title>Description</title>
|
||
|
||
<para><function>sd_journal_has_runtime_files()</function> returns a positive value
|
||
if runtime journal files (present in /run/systemd/journal/) have been found.
|
||
Otherwise returns 0.</para>
|
||
|
||
<para><function>sd_journal_has_persistent_files()</function> returns a positive value
|
||
if persistent journal files (present in /var/log/journal/) have been found.
|
||
Otherwise returns 0.</para>
|
||
</refsect1>
|
||
|
||
<refsect1>
|
||
<title>Return value</title>
|
||
<para>Both <function>sd_journal_has_runtime_files()</function>
|
||
and <function>sd_journal_has_persistent_files()</function> return -EINVAL
|
||
if their argument is NULL.
|
||
</para>
|
||
</refsect1>
|
||
|
||
<refsect1>
|
||
<title>Notes</title>
|
||
|
||
<para>All functions listed here are thread-agnostic and only a single thread may operate
|
||
on a given <structname>sd_journal</structname> object.</para>
|
||
|
||
<para>Functions listed here are available as a shared library, which can be compiled and linked
|
||
to with the <constant>libsystemd</constant> <citerefentry
|
||
project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
|
||
file.</para>
|
||
</refsect1>
|
||
|
||
<refsect1>
|
||
<title>See Also</title>
|
||
<para>
|
||
<citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>
|
||
</para>
|
||
</refsect1>
|
||
|
||
</refentry>
|