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pid1: pass pidfdids to invoked services in $MAINPIDFDID and $MANAGERPIDFDID

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This commit is contained in:
Lennart Poettering
2025-01-20 21:51:40 +01:00
parent 36a2be13c4
commit 7933e971ce
2 changed files with 39 additions and 9 deletions
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man/systemd.exec.xml
+24 -6
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@@ -3886,22 +3886,40 @@ StandardInputData=V2XigLJyZSBubyBzdHJhbmdlcnMgdG8gbG92ZQpZb3Uga25vdyB0aGUgcnVsZX
<varlistentry>
<term><varname>$MAINPID</varname></term>
<listitem><para>The PID of the unit's main process if it is
known. This is only set for control processes as invoked by
<varname>ExecReload=</varname> and similar.</para>
<listitem><para>The UNIX process ID (PID) of the unit's main process if it is known. This is only
set for control processes as invoked by <varname>ExecReload=</varname> and similar.</para>
<xi:include href="version-info.xml" xpointer="v209"/></listitem>
</varlistentry>
<varlistentry>
<term><varname>$MAINPIDFDID</varname></term>
<listitem><para>The 64bit inode ID of the file descriptor returned by <citerefentry
project='man-pages'><refentrytitle>pidfd_open</refentrytitle><manvolnum>3</manvolnum></citerefentry>
for the main process (if supported). This is only set for control processes as invoked by
<varname>ExecReload=</varname> and similar.</para>
<xi:include href="version-info.xml" xpointer="v258"/></listitem>
</varlistentry>
<varlistentry>
<term><varname>$MANAGERPID</varname></term>
<listitem><para>The PID of the user <command>systemd</command>
instance, set for processes spawned by it.</para>
<listitem><para>The PID of the per-user <command>systemd</command> service manager instance, set
for processes spawned by it.</para>
<xi:include href="version-info.xml" xpointer="v208"/></listitem>
</varlistentry>
<varlistentry>
<term><varname>$MANAGERPIDFDID</varname></term>
<listitem><para>The <function>pidfd_open()</function> inode ID (see above) of the per-user
<command>systemd</command> service manager instance, set for processes spawned by it.</para>
<xi:include href="version-info.xml" xpointer="v258"/></listitem>
</varlistentry>
<varlistentry>
<term><varname>$LISTEN_FDS</varname></term>
<term><varname>$LISTEN_PID</varname></term>