I cant see how this class is used, but it is slightly suspect, in the fact it stores the result of the unmarshal in self.fmProject but there is nothing to prevent other threads from using self.fmProject, which would be an error. Unless something not shown prevents this happening, you need to avoid storing the result of the unmarshal anywhere than in variables local to a function and passed around as a param (or maybe using something like threading.local() to help with this.
Mark From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of mauro tizianel Sent: Thursday, 21 February 2008 2:48 AM To: python-win32@python.org Subject: [python-win32] Help with COM objs across threads: The object exporter specified was not found Dear list, I wrote a small class which has some COM objects among its attributes. I need to access the object from different threads so I defined two methods to marshal and unmarshal the interfaces when working with the object. Everything seemed to work fine on my PC, never had an error. But I distributed the module to a user and I have been told that after a few threads successfully exiting (can be two or hundreds...) something goes wrong in "unMarshal" and Exception occurred ((-2147022986, 'Der angegebene Objektexporter wurde nicht gefunden.', None, None)) is reported (it took me a while to figure out that this is: 0x00000776 - 1910 The object exporter specified was not found). Then, but that's obvious, I get Exception occurred ((-2147417827, 'Das Schnittstellendatenpaket (Marshall/OBJREF) hat ein ungültiges oder unbekanntes Format.', None, None)) when I try to marshal (unknown or invalid format). Since I cannot reproduce the exception I was not able neither to locate exactly where the exception occurs, nor to find the reason (the only difference is that I am administrator on my machine and he is not). Before modifying the code to deal with the exception, (here's the request for help) I would need help to figure out if I am doing things the wrong way with threads (I am new to COM and not a software developer) or such exceptions 'just occurs sometimes'. Thanks, Mauro <code> class AppInterface(object): def __init__(self): self.fmApp = win32com.client.Dispatch("Whatever.Application") self.fmProject = self.fmApp.Project("Newproject") def marshal(self): self.fmAppStream = pythoncom.CoMarshalInterThreadInterfaceInStream(pythoncom.IID_IDispatch, self.fmApp._oleobj_) self.fmProjectStream = pythoncom.CoMarshalInterThreadInterfaceInStream(pythoncom.IID_IDispatch, self.fmProject._oleobj_) def unMarshal(self): idispatch = pythoncom.CoGetInterfaceAndReleaseStream(self.fmAppStream, pythoncom.IID_IDispatch) self.fmApp = win32com.client.Dispatch(idispatch) idispatch = pythoncom.CoGetInterfaceAndReleaseStream(self.fmProjectStream, pythoncom.IID_IDispatch) self.fmProject = win32com.client.Dispatch(idispatch) </code>
_______________________________________________ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
