diff options
Diffstat (limited to 'man/sd_journal_open.xml')
-rw-r--r-- | man/sd_journal_open.xml | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/man/sd_journal_open.xml b/man/sd_journal_open.xml deleted file mode 100644 index 06d0ccfd12..0000000000 --- a/man/sd_journal_open.xml +++ /dev/null @@ -1,184 +0,0 @@ -<?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"> - -<!-- - This file is part of systemd. - - Copyright 2012 Lennart Poettering - - 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_open"> - - <refentryinfo> - <title>sd_journal_open</title> - <productname>systemd</productname> - - <authorgroup> - <author> - <contrib>Developer</contrib> - <firstname>Lennart</firstname> - <surname>Poettering</surname> - <email>lennart@poettering.net</email> - </author> - </authorgroup> - </refentryinfo> - - <refmeta> - <refentrytitle>sd_journal_open</refentrytitle> - <manvolnum>3</manvolnum> - </refmeta> - - <refnamediv> - <refname>sd_journal_open</refname> - <refname>sd_journal_open_directory</refname> - <refname>sd_journal_close</refname> - <refname>sd_journal</refname> - <refname>SD_JOURNAL_LOCAL_ONLY</refname> - <refname>SD_JOURNAL_RUNTIME_ONLY</refname> - <refname>SD_JOURNAL_SYSTEM_ONLY</refname> - <refpurpose>Open the system journal for reading</refpurpose> - </refnamediv> - - <refsynopsisdiv> - <funcsynopsis> - <funcsynopsisinfo>#include <systemd/sd-journal.h></funcsynopsisinfo> - - <funcprototype> - <funcdef>int <function>sd_journal_open</function></funcdef> - <paramdef>sd_journal** <parameter>ret</parameter></paramdef> - <paramdef>int <parameter>flags</parameter></paramdef> - </funcprototype> - - <funcprototype> - <funcdef>int <function>sd_journal_open_directory</function></funcdef> - <paramdef>sd_journal** <parameter>ret</parameter></paramdef> - <paramdef>const char* <parameter>path</parameter></paramdef> - <paramdef>int <parameter>flags</parameter></paramdef> - </funcprototype> - - <funcprototype> - <funcdef>int <function>sd_journal_close</function></funcdef> - <paramdef>sd_journal* <parameter>j</parameter></paramdef> - </funcprototype> - </funcsynopsis> - </refsynopsisdiv> - - <refsect1> - <title>Description</title> - - <para><function>sd_journal_open()</function> opens - the log journal for reading. It will find all journal - files automatically and interleave them automatically - when reading. As first argument it takes a pointer to - a <literal>sd_journal</literal> pointer, which on - success will contain journal context object afterwards. The - second argument is a flags field, which may consist of - the following flags ORed together: - <literal>SD_JOURNAL_LOCAL_ONLY</literal> makes sure - only journal files generated on the local machine will - be opened. <literal>SD_JOURNAL_RUNTIME_ONLY</literal> - makes sure only volatile journal files will be opened, - excluding those which are stored on persistent - storage. <literal>SD_JOURNAL_SYSTEM_ONLY</literal> - will ensure that only journal files of system services - and the kernel (in opposition to user session processes) will - be opened.</para> - - <para><function>sd_journal_open_directory()</function> - is similar to <function>sd_journal_open()</function> - but takes an absolute directory path as argument. All - journal files in this directory will be opened and - interleaved automatically. This call also takes a - flags argument, but it must be passed as 0 as no flags - are currently understood for this call.</para> - - <para><function>sd_journal_close()</function> will - close the journal context allocated with - <function>sd_journal_open()</function> or - <function>sd_journal_open_directory()</function> and - free its resources.</para> - - <para>When opening the journal only journal files - accessible to the calling user will be opened. If - journal files are not accessible to the caller this - will be silently ignored.</para> - - <para>See - <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry> - for an example how to iterate through the journal - after opening it with - <function>sd_journal_open()</function>.</para> - - <para>A journal context object returned by - <function>sd_journal_open()</function> references a - specific journal entry as <emphasis>current</emphasis> entry, - similar to a file seek index in a classic file system - file, but without absolute positions. It may be - altered with - <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry> - and - <citerefentry><refentrytitle>sd_journal_seek_head</refentrytitle><manvolnum>3</manvolnum></citerefentry> - and related calls. The current entry position may be - exported in <emphasis>cursor</emphasis> strings, as accessible - via - <citerefentry><refentrytitle>sd_journal_get_cursor</refentrytitle><manvolnum>3</manvolnum></citerefentry>. Cursor - strings may be used to globally identify a specific - journal entry in a stable way and then later to seek - to it (or if the specific entry is not available - locally, to its closest entry in time) - <citerefentry><refentrytitle>sd_journal_seek_cursor</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para> - - <para>Notification of journal changes is available via - <function>sd_journal_get_fd()</function> and related - calls.</para> - </refsect1> - - <refsect1> - <title>Return Value</title> - - <para>The <function>sd_journal_open()</function> and - <function>sd_journal_open_directory()</function> calls - return 0 on success or a negative errno-style error - code. <function>sd_journal_close()</function> returns - nothing.</para> - </refsect1> - - <refsect1> - <title>Notes</title> - - <para>The <function>sd_journal_open()</function>, - <function>sd_journal_open_directory()</function> and - <function>sd_journal_close()</function> interfaces are - available as shared library, which can be compiled and - linked to with the - <literal>libsystemd-journal</literal> - <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> - file.</para> - </refsect1> - - <refsect1> - <title>See Also</title> - - <para> - <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_journal_next</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_journal_get_data</refentrytitle><manvolnum>3</manvolnum></citerefentry> - </para> - </refsect1> - -</refentry> |