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| author | John Lin <johnlinp@gmail.com> | 2017-09-12 12:02:27 +0800 |
|---|---|---|
| committer | John Lin <johnlinp@gmail.com> | 2017-09-13 11:39:09 +0800 |
| commit | 45f09f939b50387d65ab6fc46f47608523a6ef19 (patch) | |
| tree | 5f59d953c2a4947701a7a8c55d8f5531fe4c0f07 /man/systemd.timer.xml | |
| parent | bbe0b4a8d5e84ac28689ba4b6f817524375622c3 (diff) | |
| download | systemd-45f09f939b50387d65ab6fc46f47608523a6ef19.tar.gz | |
man: explicitly distinguish "implicit dependencies" and "default dependencies"
Fixes: #6793
Diffstat (limited to 'man/systemd.timer.xml')
| -rw-r--r-- | man/systemd.timer.xml | 42 |
1 files changed, 28 insertions, 14 deletions
diff --git a/man/systemd.timer.xml b/man/systemd.timer.xml index 26a47a1e5a..b8f921f3af 100644 --- a/man/systemd.timer.xml +++ b/man/systemd.timer.xml @@ -82,20 +82,34 @@ </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>time-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> + <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>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> </refsect1> <refsect1> |