chiark / gitweb /
man: update systemd-nspawn regarding new --slice= logic
[elogind.git] / man / systemd.timer.xml
index 6fc26a5..fa67d59 100644 (file)
         </refnamediv>
 
         <refsynopsisdiv>
         </refnamediv>
 
         <refsynopsisdiv>
-                <para><filename>systemd.timer</filename></para>
+                <para><filename><replaceable>timer</replaceable>.timer</filename></para>
         </refsynopsisdiv>
 
         <refsect1>
                 <title>Description</title>
 
                 <para>A unit configuration file whose name ends in
         </refsynopsisdiv>
 
         <refsect1>
                 <title>Description</title>
 
                 <para>A unit configuration file whose name ends in
-                <filename>.timer</filename> encodes information about
+                <literal>.timer</literal> encodes information about
                 a timer controlled and supervised by systemd, for
                 timer-based activation.</para>
 
                 a timer controlled and supervised by systemd, for
                 timer-based activation.</para>
 
@@ -97,7 +97,7 @@
                 defines. The options specific to the [Timer] section
                 of timer units are the following:</para>
 
                 defines. The options specific to the [Timer] section
                 of timer units are the following:</para>
 
-                <variablelist>
+                <variablelist class='unit-directives'>
                         <varlistentry>
                                 <term><varname>OnActiveSec=</varname></term>
                                 <term><varname>OnBootSec=</varname></term>
                         <varlistentry>
                                 <term><varname>OnActiveSec=</varname></term>
                                 <term><varname>OnBootSec=</varname></term>
                                 <term><varname>OnUnitActiveSec=</varname></term>
                                 <term><varname>OnUnitInactiveSec=</varname></term>
 
                                 <term><varname>OnUnitActiveSec=</varname></term>
                                 <term><varname>OnUnitInactiveSec=</varname></term>
 
-                                <listitem><para>Defines timers
+                                <listitem><para>Defines monotonic timers
                                 relative to different starting points:
                                 <varname>OnActiveSec=</varname> defines a
                                 timer relative to the moment the timer
                                 relative to different starting points:
                                 <varname>OnActiveSec=</varname> defines a
                                 timer relative to the moment the timer
                                 machine was booted
                                 up. <varname>OnStartupSec=</varname>
                                 defines a timer relative to when
                                 machine was booted
                                 up. <varname>OnStartupSec=</varname>
                                 defines a timer relative to when
-                                systemd was
+                                systemd was first
                                 started. <varname>OnUnitActiveSec=</varname>
                                 defines a timer relative to when the
                                 unit the timer is activating was last
                                 started. <varname>OnUnitActiveSec=</varname>
                                 defines a timer relative to when the
                                 unit the timer is activating was last
                                 seconds. Example: "OnBootSec=50" means
                                 50s after boot-up. The argument may
                                 also include time units. Example:
                                 seconds. Example: "OnBootSec=50" means
                                 50s after boot-up. The argument may
                                 also include time units. Example:
-                                "OnBootSec=5h 30min" means 5 hours and 30
-                                minutes after boot-up. For details
+                                "OnBootSec=5h 30min" means 5 hours and
+                                30 minutes after boot-up. For details
                                 about the syntax of time spans see
                                 <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
 
                                 about the syntax of time spans see
                                 <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
 
                                 elapse and the configured unit is
                                 started. This is not the case for
                                 timers defined in the other
                                 elapse and the configured unit is
                                 started. This is not the case for
                                 timers defined in the other
-                                directives.</para></listitem>
+                                directives.</para>
 
                                 <para>These are monotonic timers,
                                 independent of wall-clock time and timezones. If the
                                 computer is temporarily suspended, the
                                 monotonic clock stops too.</para>
 
 
                                 <para>These are monotonic timers,
                                 independent of wall-clock time and timezones. If the
                                 computer is temporarily suspended, the
                                 monotonic clock stops too.</para>
 
+                                <para>If the empty string is assigned
+                                to any of these options, the list of
+                                timers is reset, and all prior
+                                assignments will have no
+                                effect.</para></listitem>
+
                         </varlistentry>
                         </varlistentry>
+
+                        <varlistentry>
+                                <term><varname>OnCalendar=</varname></term>
+
+                                <listitem><para>Defines realtime
+                                (i.e. wallclock) timers via calendar
+                                event expressions. See
+                                <citerefentry><refentrytitle>systemd.time</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+                                for more information on the syntax of
+                                calendar event expressions. Otherwise
+                                the semantics are similar to
+                                <varname>OnActiveSec=</varname> and
+                                related settings.</para></listitem>
+                        </varlistentry>
+
                         <varlistentry>
                                 <term><varname>Unit=</varname></term>
 
                                 <listitem><para>The unit to activate
                                 when this timer elapses. The argument is a
                                 unit name, whose suffix is not
                         <varlistentry>
                                 <term><varname>Unit=</varname></term>
 
                                 <listitem><para>The unit to activate
                                 when this timer elapses. The argument is a
                                 unit name, whose suffix is not
-                                <filename>.timer</filename>. If not
+                                <literal>.timer</literal>. If not
                                 specified, this value defaults to a
                                 service that has the same name as the
                                 timer unit, except for the
                                 specified, this value defaults to a
                                 service that has the same name as the
                                 timer unit, except for the
                           <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
-                          <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                          <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemd.time</refentrytitle><manvolnum>7</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>systemd.directives</refentrytitle><manvolnum>7</manvolnum></citerefentry>
                   </para>
         </refsect1>
 
                   </para>
         </refsect1>