From 06b2770ccda92dd6de9dd14bb76c9c94cc9adf4a Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Mon, 30 Nov 2015 10:12:51 +0100 Subject: move info/ to doc/info/ MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- doc/info/orphan-reaper.texinfo | 117 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 doc/info/orphan-reaper.texinfo (limited to 'doc/info/orphan-reaper.texinfo') diff --git a/doc/info/orphan-reaper.texinfo b/doc/info/orphan-reaper.texinfo new file mode 100644 index 0000000..05d9df0 --- /dev/null +++ b/doc/info/orphan-reaper.texinfo @@ -0,0 +1,117 @@ +\input texinfo @c -*-texinfo-*- + +@c %**start of header +@setfilename orphan-reaper.info +@settitle orphan-reaper +@afourpaper +@documentencoding UTF-8 +@documentlanguage en +@finalout +@c %**end of header + + +@dircategory Miscellaneous +@direntry +* orphan-reaper: (orphan-reaper). Place subreapers in your process tree to keep it structured +@end direntry + + +@copying +Copyright @copyright{} 2014 Mattias Andrée + +@quotation +Permission is granted to copy, distribute and/or modify this document +under the terms of the GNU Free Documentation License, Version 1.3 or +any later version published by the Free Software Foundation; with no +Invariant Sections, with no Front-Cover Texts, and with no Back-Cover +Texts. A copy of the license is included in the section entitled +``GNU Free Documentation License''. +@end quotation +@end copying + +@ifnottex +@node Top +@top orphan-reaper -- Place subreapers in your process tree to keep it structured +@insertcopying +@end ifnottex + +@titlepage +@title orphan-reaper +@subtitle Place subreapers in your process tree to keep it structured +@author by Mattias Andrée (maandree) + +@page +@c @center `' +@vskip 0pt plus 1filll +@insertcopying +@end titlepage + +@contents + + + +@menu +* Overview:: Brief overview of @command{orphan-reaper}. +* Invoking:: Invocation of @command{orphan-reaper}. +* GNU Free Documentation License:: Copying and sharing this manual. +@end menu + + + +@node Overview +@chapter Overview + +This a daemon spawns a process and reaps all orphaned +grandchildren. This is useful if you want to keep +your process tree clean. For instance if you want +all programs started from inside the same display +server instance to appear to be inside that display +if you look inside the process tree, rather than all +processes that loses their parent being reparented +to PID 1 and make a mess on your process tree. + + + +@node Invoking +@chapter Invoking + +@command{orphan-reaper} recognises one option: + +@table @option +@item --fatal +If this option is used, @command{orphan-reaper} +will return with exit value 2 if it is unable +to set up a subreaper. If this option is not +used, @command{orphan-reaper} will proceed to +start the specified command even if it cannot +create a subreaper under it. +@end table + +After the optional option you should specify +a command in the same mannar as you would +start it normally. If the command starts +with a dash (-) you must add the argument +@option{--} before it. + +Once @command{orphan-reaper} has configured +itself to be a subreaper and spawned the +specified command it will reexecute into +@command{reapd} (a libexec) to save memory, +@command{reapd} does nothing at all except +reaping children (processes that they before +their parent are automatically reparented +by the kernel to be a child of @command{reapd}), +and exit with exit value 0 when it no longer +have any children (at which point it cannot +get any new children). It will also print +exit with exit value 2, after it has printed +an error message, if it encounters an error. + + + +@node GNU Free Documentation License +@appendix GNU Free Documentation License +@include fdl.texinfo + +@bye + -- cgit v1.2.3-70-g09d2