Re: [Pyobjc-dev] Some PyObC tweaks for using EOF and custom frameworks

[Pierce T. W. I. <pi...@ma...>]

>>
>>  1. I have to touch NSCalendarDate after loading Foundation and  
>> before loading any other frameworks via loadBundle. I think this  
>> causes +initialize for the various Foundation classes early on, which  
>> probably should have been done by the "import Foundation" step  
>> originally, but that might be tough. I'm using NSCalendarDate because  
>> NSCalendarDate had a +initialize method that was deadlocking, but  
>> using it seemed to fix everything.
>>
>>  Doing this after the loadBundle call caused problems with both  
>> Foundation and the loaded frameworks.
>>
>> i.e I have to do some VOODOO:
>>
>> import objc
>> import Foundation
>>
>> #VOODOO
>> from Foundation import NSCalendarDate
>> NSCalendarDate.date().description()
>>
>> objc.loadBundle("EOAccess",globals(),bundle_path="/System/Library/ 
>> Frameworks/EOAccess.framework")
>
> This is odd. I'll try to reproduce this with another framework, I  
> don't think we have old WebObjects CD's lying around at the office. I  
> noticed you can download a trial version of WebObjects 5.x, but that  
> seems to be java based.

This is the sample run from the lock up that happens.

It's not all frameworks that do this, I think they have to have some  
categories on some foundation classes or something. Which makes a  
certain amount of sense, because its related to +initialize. The work  
around might be just to trigger an initialize during the loadBundle  
call via [Class self] on one of the imported classes.

     1000 Thread_0e03
       1000 start
         1000 _start
           1000 Py_Main
             1000 PyRun_SimpleFileExFlags
               1000 run_node
                 1000 PyEval_EvalCode
                   1000 PyEval_EvalCodeEx
                     1000 eval_frame
                       1000 call_function
                         1000 do_call
                           1000 PyObject_Call
                             1000 PyObjCSelector_Required
                               1000 ObjC_FFICaller
                                 1000 ffi_call
                                   1000 ffi_call_DARWIN
                                     1000 +[NSCalendarDate distantPast]
                                       1000 -[NSCalendarDate  
initWithTimeIntervalSinceReferenceDate:]
                                         1000 -[NSCalendarDate  
initWithTimeIntervalSinceReferenceDate:]
                                           1000 objc_msgSend
                                             1000  
_class_lookupMethodAndLoadCache
                                               1000  
_destroyInitializingClassList
                                                 1000  
_destroyInitializingClassList
                                                   1000  
+[NSTimeZone(Extra) initialize]
                                                     1000  
+[NSTimeZone(Extra) initialize]
                                                       1000 objc_msgSend
                                                         1000  
_class_lookupMethodAndLoadCache
                                                           1000  
_destroyInitializingClassList
                                                             1000  
+[NSTimeZone(Extra) initialize]
                                                               1000  
-[NSLock lock]
                                                                 1000  
pthread_mutex_lock
                                                                   1000  
semaphore_wait_trap
                                                                      
1000 semaphore_wait_trap [STACK TOP]