man: document systemd-notify

[elogind.git] / man / sd_listen_fds.xml

diff --git a/man/sd_listen_fds.xml b/man/sd_listen_fds.xml
index 4164a991d93bcbcafd97bf74055154153fbada40..54874fd186f3f3819ea91dcd7ab2cfe4ab76d74f 100644 (file)
--- a/man/sd_listen_fds.xml
+++ b/man/sd_listen_fds.xml
@@ -159,6 +159,26 @@
                 become a NOP.</para>
         </refsect1>
 
+        <refsect1>
+                <title>Environment</title>
+
+                <variablelist>
+                        <varlistentry>
+                                <term><varname>$LISTEN_PID</varname></term>
+                                <term><varname>$LISTEN_FDS</varname></term>
+
+                                <listitem><para>Set by the init system
+                                for supervised processes that use
+                                socket-based activation. This
+                                environment variable specifies the
+                                data
+                                <function>sd_listen_fds()</function>
+                                parses. See above for
+                                details.</para></listitem>
+                        </varlistentry>
+                </variablelist>
+        </refsect1>
+
         <refsect1>
                 <title>See Also</title>