Re: launchd and fork/exec?
Re: launchd and fork/exec?
- Subject: Re: launchd and fork/exec?
- From: Brian Bergstrand <email@hidden>
- Date: Wed, 24 May 2006 18:37:35 -0500
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On May 24, 2006, at 6:04 PM, Dave Zarzycki wrote:
On May 24, 2006, at 12:24 PM, Brian Bergstrand wrote:
I have a tool that loads a non-IOKit kext via executing kextload.
For various reasons, using kextload directly from the launchd
plist won't work (the tool does some pre and post processing).
Reading the launchd Getting Started doc I see:
"The only things that are strictly prohibited, however, are fork()/
exit() combinations (including indirect methods, such as the daemon
(3) library call)."
I'm not forking a child of the tool, but of course my tool fork/
exec's kextload (and kextunload and possibly kextstat). When this
happens, launchd starts spewing errors in system.log and re-
spawning my tool.
Is there anything I can do to work around this? Or do I just have
to live with the spurious errors/respawns?
That's not really what launchd was meant for,
Really? The mantra coming from Apple is use launchd for all startup
needs. As StartupItems are going away and I have a need to load a non-
IOKit kext at boot, launchd seems to be the only game in town.
but if you must, RunAtLoad is the flag you want to set to true and
you want OnDemand also set to true (or not set at all).
OK, I'll try that. I have RunAtLoad set to true now, but OnDemand is
set (explicitly) to false.
Thanks.
davez
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