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Diffstat (limited to 'man/sd_journal_stream_fd.xml')
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diff --git a/man/sd_journal_stream_fd.xml b/man/sd_journal_stream_fd.xml deleted file mode 100644 index 2ea7731b48..0000000000 --- a/man/sd_journal_stream_fd.xml +++ /dev/null @@ -1,163 +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_stream_fd"> - - <refentryinfo> - <title>sd_journal_stream_fd</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_stream_fd</refentrytitle> - <manvolnum>3</manvolnum> - </refmeta> - - <refnamediv> - <refname>sd_journal_stream_fd</refname> - <refpurpose>Create log stream file descriptor to the journal</refpurpose> - </refnamediv> - - <refsynopsisdiv> - <funcsynopsis> - <funcsynopsisinfo>#include <systemd/sd-journal.h></funcsynopsisinfo> - - <funcprototype> - <funcdef>int <function>sd_journal_stream_fd</function></funcdef> - <paramdef>const char *<parameter>identifier</parameter></paramdef> - <paramdef>int <parameter>priority</parameter></paramdef> - <paramdef>int <parameter>level_prefix</parameter></paramdef> - </funcprototype> - - </funcsynopsis> - </refsynopsisdiv> - - <refsect1> - <title>Description</title> - - <para><function>sd_journal_stream_fd()</function> may be used to - create a log stream file descriptor. Log messages written to this - file descriptor as simple newline-separated text strings are - written to the journal. This file descriptor can be used - internally by applications or be made standard output or standard - error of other processes executed.</para> - - <para><function>sd_journal_stream_fd()</function> takes a short - program identifier string as first argument, which will be written - to the journal as _SYSLOG_IDENTIFIER= field for each log entry - (see - <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry> - for more information). The second argument shall be the default - priority level for all messages. The priority level is one of - <constant>LOG_EMERG</constant>, <constant>LOG_ALERT</constant>, - <constant>LOG_CRIT</constant>, <constant>LOG_ERR</constant>, - <constant>LOG_WARNING</constant>, <constant>LOG_NOTICE</constant>, - <constant>LOG_INFO</constant>, <constant>LOG_DEBUG</constant>, as - defined in <filename>syslog.h</filename>, see - <citerefentry project='man-pages'><refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry> - for details. The third argument is a boolean: if true kernel-style - log level prefixes (such as <constant>SD_WARNING</constant>) are - interpreted, see - <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry> - for more information.</para> - - <para>It is recommended that applications log UTF-8 messages only - with this API, but this is not enforced.</para> - </refsect1> - - <refsect1> - <title>Return Value</title> - - <para>The call returns a valid write-only file descriptor on - success or a negative errno-style error code.</para> - </refsect1> - - <refsect1> - <title>Notes</title> - - <para>The <function>sd_journal_stream_fd()</function> interface is - 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>Examples</title> - - <para>Creating a log stream suitable for - <citerefentry project='man-pages'><refentrytitle>fprintf</refentrytitle><manvolnum>3</manvolnum></citerefentry>:</para> - - <programlisting>#include <syslog.h> -#include <stdio.h> -#include <string.h> -#include <unistd.h> -#include <systemd/sd-journal.h> -#include <systemd/sd-daemon.h> - -int main(int argc, char *argv[]) { - int fd; - FILE *log; - fd = sd_journal_stream_fd("test", LOG_INFO, 1); - if (fd < 0) { - fprintf(stderr, "Failed to create stream fd: %s\n", strerror(-fd)); - return 1; - } - log = fdopen(fd, "w"); - if (!log) { - fprintf(stderr, "Failed to create file object: %m\n"); - close(fd); - return 1; - } - fprintf(log, "Hello World!\n"); - fprintf(log, SD_WARNING "This is a warning!\n"); - fclose(log); - return 0; -}</programlisting> - - </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-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_journal_print</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry project='man-pages'><refentrytitle>syslog</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry project='man-pages'><refentrytitle>fprintf</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry><refentrytitle>systemd.journal-fields</refentrytitle><manvolnum>7</manvolnum></citerefentry> - </para> - </refsect1> - -</refentry> |