Re: NSApplication terminate: behavior
Re: NSApplication terminate: behavior
- Subject: Re: NSApplication terminate: behavior
- From: Camillo Lugaresi <email@hidden>
- Date: Fri, 20 Jan 2006 20:37:58 +0100
On 20/gen/06, at 02:26, Andreas Färber wrote:
I have noticed that NSApplication's run method does not return and
call exit() instead. Posts on this list and other places suggest to
do cleanup in applicationWillTerminate: or an atexit()-registered
callback function. However this does not do what I want it to...
The native Objective-C run method is being called from a managed
context and the ObjC runtime / AppKit framework exiting the app
does not let Garbage Collection happen for the managed context. If
from a managed context I just call the CLR exit() equivalent
System.Environment.Exit(0), it does a GC run but does not return to
my Main method either, and the menu item stays selected and my
window visible for some seconds after the application is Exit'ed.
Calling stop: from applicationShouldTerminate: returning ...Cancel
returns from run to Main but just as Exit() the Cocoa termination
cleanup is not performed correctly.
And when I throw an Exception in the atexit handler it does not go
back through the callstack, probably because all native instances
are already dealloc'ed...
So is there some geeky way to write a run equivalent that does not
exit but instead return?
The problem is not with run: you can break out of it by calling stop.
It's terminate that calls exit. What you should do is call stop
instead of terminate, and reproduce the functionality of terminate
after run exits, by calling delegate methods as outlined in the
documentation.
What does terminate: do exactly anyway apart from calling the
delegates? Any docs on that part?
What exactly is not working for you, once you call all delegate
methods correctly?
Camillo _______________________________________________
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