X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fsd_pid_get_session.xml;h=bd958046281af9a1952fb600ef8d816f7aced44e;hp=24e468015f42769324aade5e427ae1c2634e3462;hb=ba1d5596354e3299d5b9b995bb0fa9b3bdd285cc;hpb=dc1ecd78e9f046880d10ddb45cf9b06df1084b10

diff --git a/man/sd_pid_get_session.xml b/man/sd_pid_get_session.xml
index 24e468015..bd9580462 100644
--- a/man/sd_pid_get_session.xml
+++ b/man/sd_pid_get_session.xml
@@ -44,8 +44,9 @@
 
         <refnamediv>
                 <refname>sd_pid_get_session</refname>
+                <refname>sd_pid_get_unit</refname>
                 <refname>sd_pid_get_owner_uid</refname>
-                <refpurpose>Determine session or owner of a session of a specific PID</refpurpose>
+                <refpurpose>Determine session, service or owner of a session of a specific PID</refpurpose>
         </refnamediv>
 
         <refsynopsisdiv>
@@ -58,6 +59,12 @@
                                 <paramdef>char** <parameter>session</parameter></paramdef>
                         </funcprototype>
 
+                        <funcprototype>
+                                <funcdef>int <function>sd_pid_get_unit</function></funcdef>
+                                <paramdef>pid_t <parameter>pid</parameter></paramdef>
+                                <paramdef>char** <parameter>unit</parameter></paramdef>
+                        </funcprototype>
+
                         <funcprototype>
                                 <funcdef>int <function>sd_pid_get_owner_uid</function></funcdef>
                                 <paramdef>pid_t <parameter>pid</parameter></paramdef>
@@ -75,11 +82,24 @@
                 identifier. The session identifier is a short string,
                 suitable for usage in file system paths. Note that not
                 all processes are part of a login session (e.g. system
-                service processes and user processes that are shared
-                between multiple sessions of the same user). For
-                processes not being part of a login session this
-                function will fail. The returned string needs to be
-                freed with the libc
+                service processes, user processes that are shared
+                between multiple sessions of the same user, or kernel
+                threads). For processes not being part of a login
+                session this function will fail. The returned string
+                needs to be freed with the libc
+                <citerefentry><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+                call after use.</para>
+
+                <para><function>sd_pid_get_unit()</function> may be
+                used to determine the systemd unit (i.e. system
+                service) identifier of a process identified by the
+                specified process identifier. The unit name is a short
+                string, suitable for usage in file system paths. Note
+                that not all processes are part of a unit/service
+                (e.g. user processes, or kernel threads). For
+                processes not being part of a systemd unit/system
+                service this function will fail. The returned string
+                needs to be freed with the libc
                 <citerefentry><refentrytitle>free</refentrytitle><manvolnum>3</manvolnum></citerefentry>
                 call after use.</para>
 
@@ -106,10 +126,11 @@
         <refsect1>
                 <title>Notes</title>
 
-                <para>The <function>sd_pid_get_session()</function>
-                and <function>sd_pid_get_owner_uid()</function>
-                interfaces are available as shared library, which can
-                be compiled and linked to with the
+                <para>The <function>sd_pid_get_session()</function>,
+                <function>sd_pid_get_pid()</function>, and
+                <function>sd_pid_get_owner_uid()</function> interfaces
+                are available as shared library, which can be compiled
+                and linked to with the
                 <literal>libsystemd-login</literal>
                 <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
                 file.</para>