]> git.ipfire.org Git - thirdparty/systemd.git/blobdiff - man/systemd.timer.xml
NEWS: document that the BLS is now part of our tree
[thirdparty/systemd.git] / man / systemd.timer.xml
index 4fe140e4bc3c0aa7cf2db574ab8880469386ac1e..44b257c745349af3d3367e3f5ce44dcb8d8ef35f 100644 (file)
@@ -3,37 +3,13 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
-  This file is part of systemd.
-
-  Copyright 2010 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/>.
+  SPDX-License-Identifier: LGPL-2.1+
 -->
 
 <refentry id="systemd.timer">
   <refentryinfo>
     <title>systemd.timer</title>
     <productname>systemd</productname>
-
-    <authorgroup>
-      <author>
-        <contrib>Developer</contrib>
-        <firstname>Lennart</firstname>
-        <surname>Poettering</surname>
-        <email>lennart@poettering.net</email>
-      </author>
-    </authorgroup>
   </refentryinfo>
 
   <refmeta>
     then stay around forever.</para>
   </refsect1>
 
+  <refsect1>
+    <title>Implicit Dependencies</title>
+
+    <para>The following dependencies are implicitly added:</para>
+
+    <itemizedlist>
+      <listitem><para>Timer units automatically gain a <varname>Before=</varname>
+      dependency on the service they are supposed to activate.</para></listitem>
+    </itemizedlist>
+  </refsect1>
+
   <refsect1>
     <title>Automatic Dependencies</title>
 
-    <para>Timer units automatically gain a <varname>Before=</varname>
-    dependency on the service they are supposed to activate.</para>
-
-    <para>Unless <varname>DefaultDependencies=</varname> in the <literal>[Unit]</literal> section is set to
-    <option>false</option>, all timer units will implicitly have dependencies of type <varname>Requires=</varname> and
-    <varname>After=</varname> on <filename>sysinit.target</filename>, a dependency of type <varname>Before=</varname>
-    on <filename>timers.target</filename>, as well as <varname>Conflicts=</varname> and <varname>Before=</varname> on
-    <filename>shutdown.target</filename> to ensure that they are stopped cleanly prior to system shutdown.  Timer units
-    with at least one <varname>OnCalendar=</varname> directive will have an additional <varname>After=</varname>
-    dependency on <filename>timer-sync.target</filename> to avoid being started before the system clock has been
-    correctly set. Only timer units involved with early boot or late system shutdown should disable the
-    <varname>DefaultDependencies=</varname> option.</para>
+    <refsect2>
+      <title>Implicit Dependencies</title>
+
+      <para>There are no implicit dependencies for timer units.</para>
+    </refsect2>
+
+    <refsect2>
+      <title>Default Dependencies</title>
+
+      <para>The following dependencies are added unless <varname>DefaultDependencies=no</varname> is set:</para>
+
+      <itemizedlist>
+        <listitem><para>Timer units will automatically have dependencies of type <varname>Requires=</varname> and
+        <varname>After=</varname> on <filename>sysinit.target</filename>, a dependency of type <varname>Before=</varname>
+        on <filename>timers.target</filename>, as well as <varname>Conflicts=</varname> and <varname>Before=</varname> on
+        <filename>shutdown.target</filename> to ensure that they are stopped cleanly prior to system shutdown. Only timer
+        units involved with early boot or late system shutdown should disable the
+        <varname>DefaultDependencies=</varname> option.</para></listitem>
+
+        <listitem><para>Timer units
+        with at least one <varname>OnCalendar=</varname> directive will have an additional <varname>After=</varname>
+        dependency on <filename>time-sync.target</filename> to avoid being started before the system clock has been
+        correctly set.</para></listitem>
+      </itemizedlist>
+    </refsect2>
   </refsect1>
 
   <refsect1>
         <para>Note that timers do not necessarily expire at the
         precise time configured with this setting, as it is subject to
         the <varname>AccuracySec=</varname> setting
-        below.</para></listitem>
+        below.</para>
+
+       <para>May be specified more than once.</para></listitem>
       </varlistentry>
 
       <varlistentry>
         suffix.</para></listitem>
       </varlistentry>
 
-
       <varlistentry>
         <term><varname>Persistent=</varname></term>