python.exe crash and ctypes use
Diez B. Roggisch
deets at nospam.web.de
Wed Jul 23 16:07:34 CEST 2008
> I have module A.py and B.dll which exports C functions by cdecl_
> In A.py I pass callback (py callable) to dll. Next, thread inside dll
> simply calls my callback (in a loop). After few secs I got crash of
> How to debug it?
> I'm using winxp and py 2.5.2
> def mycallback(data, size)
> return 0
> CBFUNC = CFUNCTYPE(c_int,POINTER(c_int), c_int)
> dll = cdll.mydll
> if dll.RegisterCallback(CBFUNC(mycallback)) != 0:
> print "Error."
Attach a debugger of choice to your python-process, and see what happens.
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