diff options
Diffstat (limited to 'man')
| -rw-r--r-- | man/sd_id128_get_machine.xml | 34 | ||||
| -rw-r--r-- | man/systemd.exec.xml | 10 |
2 files changed, 32 insertions, 12 deletions
diff --git a/man/sd_id128_get_machine.xml b/man/sd_id128_get_machine.xml index 2ad1f8f728..9a86c24aed 100644 --- a/man/sd_id128_get_machine.xml +++ b/man/sd_id128_get_machine.xml @@ -45,6 +45,7 @@ <refnamediv> <refname>sd_id128_get_machine</refname> <refname>sd_id128_get_boot</refname> + <refname>sd_id128_get_invocation</refname> <refpurpose>Retrieve 128-bit IDs</refpurpose> </refnamediv> @@ -62,6 +63,11 @@ <paramdef>sd_id128_t *<parameter>ret</parameter></paramdef> </funcprototype> + <funcprototype> + <funcdef>int <function>sd_id128_get_invocation</function></funcdef> + <paramdef>sd_id128_t *<parameter>ret</parameter></paramdef> + </funcprototype> + </funcsynopsis> </refsynopsisdiv> @@ -83,11 +89,15 @@ for more information. This function also internally caches the returned ID to make this call a cheap operation.</para> - <para>Note that <function>sd_id128_get_boot()</function> always - returns a UUID v4 compatible ID. - <function>sd_id128_get_machine()</function> will also return a - UUID v4-compatible ID on new installations but might not on older. - It is possible to convert the machine ID into a UUID v4-compatible + <para><function>sd_id128_get_invocation()</function> returns the invocation ID of the currently executed + service. In its current implementation, this reads and parses the <varname>$INVOCATION_ID</varname> environment + variable that the service manager sets when activating a service, see + <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry> for details. The + ID is cached internally. In future a different mechanism to determine the invocation ID may be added.</para> + + <para>Note that <function>sd_id128_get_boot()</function> and <function>sd_id128_get_invocation()</function> always + return UUID v4 compatible IDs. <function>sd_id128_get_machine()</function> will also return a UUID v4-compatible + ID on new installations but might not on older. It is possible to convert the machine ID into a UUID v4-compatible one. For more information, see <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para> @@ -107,11 +117,10 @@ <refsect1> <title>Notes</title> - <para>The <function>sd_id128_get_machine()</function> and - <function>sd_id128_get_boot()</function> interfaces are available - as a shared library, which can be compiled and linked to with the - <literal>libsystemd</literal> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> - file.</para> + <para>The <function>sd_id128_get_machine()</function>, <function>sd_id128_get_boot()</function> and + <function>sd_id128_get_invocation()</function> interfaces are available as a shared library, which can be compiled + and linked to with the <literal>libsystemd</literal> <citerefentry + project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> file.</para> </refsect1> <refsect1> @@ -121,8 +130,9 @@ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, <citerefentry><refentrytitle>sd-id128</refentrytitle><manvolnum>3</manvolnum></citerefentry>, <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>, - <citerefentry><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_id128_randomize</refentrytitle><manvolnum>3</manvolnum></citerefentry> + <citerefentry><refentrytitle>systemd.exec</refentrytitle><manvolnum>5</manvolnum></citerefentry>, + <citerefentry><refentrytitle>sd_id128_randomize</refentrytitle><manvolnum>3</manvolnum></citerefentry>, + <citerefentry project='man-pages'><refentrytitle>random</refentrytitle><manvolnum>4</manvolnum></citerefentry> </para> </refsect1> diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml index 5e6787338d..c73ccaa493 100644 --- a/man/systemd.exec.xml +++ b/man/systemd.exec.xml @@ -1514,6 +1514,16 @@ </varlistentry> <varlistentry> + <term><varname>$INVOCATION_ID</varname></term> + + <listitem><para>Contains a randomized, unique 128bit ID identifying each runtime cycle of the unit, formatted + as 32 character hexadecimal string. A new ID is assigned each time the unit changes from an inactive state into + an activating or active state, and may be used to identify this specific runtime cycle, in particular in data + stored offline, such as the journal. The same ID is passed to all processes run as part of the + unit.</para></listitem> + </varlistentry> + + <varlistentry> <term><varname>$XDG_RUNTIME_DIR</varname></term> <listitem><para>The directory for volatile state. Set for the |