Re: How to get scripting to work without NSApplication
Re: How to get scripting to work without NSApplication
- Subject: Re: How to get scripting to work without NSApplication
- From: Ingvar Nedrebo <email@hidden>
- Date: Mon, 10 Dec 2001 15:52:34 +0000
Jason,
I had exactly the same issue as you and was told not to use
any Cocoa calls in a signal handler. My solution was to create
an NSPipe, do a readInBackgroundAndNotify on the read end,
and then from the signal handler just do a write(2) directly
on the write-end file descriptor.
This works well, and I later saw on the Darwin developers
mailing list somebody recommending this writing-to-a-pipe
from a signal handler trick, so I guess it is pretty safe.
I.
On Monday, December 10, 2001, at 07:32 , Jason Bobier wrote:
This is a background damon running as root. I only need to handle the
AEQuit event so that I can cleanup our sdk before the damon is
terminated.
Currently I am catching SIGTERM and doing the cleanup there. I was told
that this has issues though because cocoa can't handle being called from
signal handlers.
One thing that I did just notice though. NSNotificationCenter is
thread-safe and re-entrant. Does this mean that I could send a
notification to myself from a signal handler? If so, that would do the
job.
Thanx,
Jason