diff options
Diffstat (limited to 'man/systemd.timer.xml')
| -rw-r--r-- | man/systemd.timer.xml | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/man/systemd.timer.xml b/man/systemd.timer.xml index c98258a0d7..8cf6c4683b 100644 --- a/man/systemd.timer.xml +++ b/man/systemd.timer.xml @@ -1,4 +1,4 @@ -<?xml version='1.0'?> <!--*-nxml-*--> +<?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*--> <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> @@ -73,19 +73,29 @@ <filename>foo.timer</filename> activates a matching service <filename>foo.service</filename>. The unit to activate may be controlled by <varname>Unit=</varname> (see below).</para> + </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> is set to <option>false</option>, all timer units will implicitly have - dependencies of type <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> + 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> </refsect1> <refsect1> |