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Operating Systems AIX mkitab problem with /etc/inittab respawning Post 302239017 by Perderabo on Monday 22nd of September 2008 05:52:24 PM
Old 09-22-2008
Quote:
Originally Posted by jeffpas
Someone mentioned that perhaps since this program runs in the background, that inittab thinks the program has ended and keeps respawning again and again.

But I don't know how to write a daemon that runs in the foreground. Is there such a thing? Then it would become a program, and no longer be a daemon anymore.
Not sure, dont' completely understand.
When a daemon (such as init) runs a subprocess, it is also a daemon. No need to do anything else.

Let's say that init spawns process 1234 for your program. Now init expects pid 1234 to stay around. If it exits, init will respawn it. This is why your program must not try to redaemonize itself. That involves spawning a child and then exiting. init will not recognize the child of pid 1234 as a replacement. Pid 1234 died, so init thinks it needs another copy.
 

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linphonecsh(1)						     linphone, internet phone						    linphonecsh(1)

NAME
linphonecsh - Sends a command to a linphonec running in daemon mode, and exits. SYNTAX
linphonecsh init <optional linphonec args> linphonecsh exit linphonecsh generic <linphonec command line surrounded by quotes> linphonecsh register --username <username> --host <proxy> --password <password> linphonecsh unregister linphonecsh dial <sip address or number> linphonecsh status <domain = one of 'register', 'hook', 'autoanswer'> linphonecsh --help DESCRIPTION
Linphonecsh is a small utility to send basic commands to a linphonec (console mode linphone) process. Unlike linphonec, linphonecsh does not wait commands from standard input: it takes the command from its arguments and sends it using unix pipe to a linphonec process started in daemon mode. The motivation for this tool is for example to simply execute voip calls from scripts, web-servers, or javascript web pages. The very first thing to do before doing actions is to ask linphonecsh to spawn a linphonec daemon using linphonecsh init The resulting linphonec daemon does not read or write any configuration file. When the linphonec daemon is no more needed, the following commands makes it exit properly: linphonecsh exit FILES
By default a linphonec started as a daemon by 'linphonecsh init' does not use a config file. ENVIRONMENT VARIABLES
EXAMPLES
AUTHORS
Simon Morlat <simon.morlat at linphone.org> SEE ALSO
linphonec(1) sipomatic(1) linphone(1) Simon MORLAT 3.0.0 linphonecsh(1)
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