07-07-2008
Daemons can have any ppid and a ppid of 1 is no guarantee that you're a daemon. I like the open /dev/tty idea. It's portable. But of course it can fail for other reasons. No one ever did a
rm /dev/tty
on any of your systems? Also the process could be out of fd's, etc. Still it's the best way. Depending on the unix system, ther may be a non-portable way. Get the source code for ps and see how it finds this stuff out. But that is a lot of trouble to avoid opening /dev/tty. I would go with that.
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LEARN ABOUT CENTOS
ibus-daemon
IBUS-DAEMON(1) User Commands IBUS-DAEMON(1)
NAME
ibus-daemon - daemon program for ibus
SYNOPSIS
ibus-daemon [OPTION]...
DESCRIPTION
IBus is an Intelligent Input Bus. It is a new input framework for Linux OS. It provides full featured and user friendly input method user
interface. It also may help developers to develop input method easily.
ibus-daemon is a daemon program for ibus and it is also a start up program for users to activate ibus daemon, engines and panel.
Help Options:
-h, --help
Show help options
Application Options:
-d, --daemonize
run ibus as background process.
-s, --single
do not execute panel and config module.
-x, --xim
execute ibus XIM server.
-n, --desktop=name
specify the name of desktop session. [default=gnome]
-p, --panel=cmdline
specify the cmdline of panel program.
-c, --config=cmdline
specify the cmdline of config program.
-a, --address=address
specify the address of ibus daemon.
-r, --replace
if there is an old ibus-daemon is running, it will be replaced.
-t, --cache=mode [default is auto]
force to re-scan components, and re-create registry cache. auto, refresh, none is available.
-o, --timeout=timeout [default is 2000]
dbus reply timeout in milliseconds.
-j, --monitor-timeout=timeout [default is 0]
timeout of poll changes of engines in seconds. 0 to disable it.
-m, --mem-profile
enable memory profile, send SIGUSR2 to print out the memory profile.
-v, --verbose
verbose.
BUGS
If you find a bug, please report it at http://code.google.com/p/ibus/issues/list
SEE ALSO
ibus(1)
1.5.3 April 2010 IBUS-DAEMON(1)