Re: [Pyobjc-dev] Kill Thread on Exception

[Ronald O. <ron...@ma...>]

 
On Monday, January 28, 2008, at 01:04PM, "Koen Bok" <ko...@ma...> wrote:
>I guess I have to do it that way. Could you supply me with some hints/ 
>directions how to start this?
>
>Thanks a lot,

Something like this should do the trick:

class NSObject (objc.Category(NSObject)):
    def _pyobjc_performOnThread_(self, callinfo):
        try:
            sel, arg = callinfo
            m = self.methodForSelector_(sel)
            m(arg)
        except:            import traceback
            traceback.print_exc()
    _pyobjc_performOnThread = _objc.selector(_pyobjc_performOnThread, 
            sel="_pyobjc_performOnThread:")

    def pyobjc_performSelector_onThread_withObject_waitUntilDone_(
            self, aSelector, thread, arg, wait):
        """
        A version of performSelector:onThread:withObject:waitUntilDone: that
        will log exceptions in the called method (instead of aborting the
        NSRunLoop on the other thread).
        """
        self.performSelector_onThread_withObject_waitUntilDone_(
                'pyobjc_performOnThread:', thread, (aSelector, arg), wait)


This is completely untested, but should do the trick, you can then use pyobjc_performSelector_onThread_withObject_waitUntilDone_ instead of the version without pyobjc_ prefix.

This would be a good addition for PyObjC 2.1 (at least when the other variants of performSelector are added as well).

Ronald
>
>Koen
>
>
>On 27 jan 2008, at 18:21, Ronald Oussoren wrote:
>
>> There's not much you can do about this, the cleanest way to avoid  
>> stopping your application is to add you're own method for executing  
>> code on the main loop and have that catch all exceptions. This can  
>> easily be build on top of the NSObject version.
>
>
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