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Diffstat (limited to 'man/systemd.unit.xml')
| -rw-r--r-- | man/systemd.unit.xml | 47 |
1 files changed, 32 insertions, 15 deletions
diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml index 32399ef993..69000aab31 100644 --- a/man/systemd.unit.xml +++ b/man/systemd.unit.xml @@ -268,25 +268,42 @@ </refsect1> <refsect1> - <title>Automatic Dependencies</title> - - <para>A number of unit dependencies are automatically established, - depending on unit configuration. On top of that, for units with - <varname>DefaultDependencies=yes</varname> (the default) a couple - of additional dependencies are added. The precise effect of - <varname>DefaultDependencies=yes</varname> depends on the unit - type (see below).</para> - - <para>If <varname>DefaultDependencies=yes</varname> is set, units - that are referenced by other units of type - <filename>.target</filename> via a <varname>Wants=</varname> or - <varname>Requires=</varname> dependency might automatically gain - an <varname>Before=</varname> dependency too. See - <citerefentry><refentrytitle>systemd.target</refentrytitle><manvolnum>5</manvolnum></citerefentry> + <title>Implicit Dependencies</title> + + <para>A number of unit dependencies are implicitly established, + depending on unit type and unit configuration. These implicit + dependencies can make unit configuration file cleaner. For the + implicit dependencies in each unit type, please refer to + section "Implicit Dependencies" in respective man pages.</para> + + <para>For example, service units with <varname>Type=dbus</varname> + automatically acquire dependencies of type <varname>Requires=</varname> + and <varname>After=</varname> on <filename>dbus.socket</filename>. See + <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry> for details.</para> </refsect1> <refsect1> + <title>Default Dependencies</title> + + <para>Default dependencies are similar to implicit dependencies, + but can be turned on and off by setting + <varname>DefaultDependencies=</varname> to <varname>yes</varname> + (the default) and <varname>no</varname>, while implicit dependencies + are always in effect. See section "Default Dependencies" in respective + man pages for the effect of enabling + <varname>DefaultDependencies=</varname> in each unit types.</para> + + <para>For example, target units will complement all configured + dependencies of type type <varname>Wants=</varname> or + <varname>Requires=</varname> with dependencies of type + <varname>After=</varname>. See + <citerefentry><refentrytitle>systemd.target</refentrytitle><manvolnum>5</manvolnum></citerefentry> + for details. Note that this behavior can be turned off by setting + <varname>DefaultDependencies=no</varname>.</para> + </refsect1> + + <refsect1> <title>Unit File Load Path</title> <para>Unit files are loaded from a set of paths determined during |