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Deare Elephant Users and Developers,<BR>
Andrew Philpot has discovered a major bug in the 0.3.0 version of Elephant used on Allegro.<BR>
As his (attached) debugging code shows, there is apparently a difference in the way Allegro and SBCL <BR>
behave in terms of the MOP.<BR>
<BR>
This means that at present, 0.3.0 doesn't work with Allegro and there is no simple workaround.<BR>
I can't work on this much until after X-mas. Fixing this is the highest priority for the project,<BR>
in my opinion; I will work on it then. However, I don't have a copy of Allegro and don't have <BR>
much experience with the MOP. If someone knows why Allegro "unsets" the slot values after<BR>
they have been set and knows how to fix it, please tell me.<BR>
<BR>
I will eventually solve this problem but it would be even better if a user could submit a patch<BR>
for me.<BR>
<BR>
Many thanks to Andrew for solving this problem; I will update the project home page<BR>
to reflect this today.<BR>
As far as I know, 0.2.0 continues to work with Allegro.<BR>
<BR>
<BR>
<BR>
On Wed, 2005-12-21 at 17:44 -0800, Andrew Philpot wrote:
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<FONT COLOR="#000000">I agree that it seems to be some kind of ACL MOP difference.</FONT>
<FONT COLOR="#000000">I metered various bits of initialization code I could find to see who</FONT>
<FONT COLOR="#000000">is setting slot DBCONNECTION-SPEC-PST of the persistent object.</FONT>
<FONT COLOR="#000000">It looks like it gets set by all the specializations and then unset by</FONT>
<FONT COLOR="#000000">STANDARD-OBJECT's INITIALIZE-INSTANCE method. I can't test that</FONT>
<FONT COLOR="#000000">directly, since I can't advice or specialize that CL-provided method.</FONT>
<FONT COLOR="#000000">If this is indeed what is happening, I think you will have an idea of</FONT>
<FONT COLOR="#000000">what to do, or perhaps we can formulate a question to Franz.</FONT>
<FONT COLOR="#000000">Sorry for the messiness of the transcript, as I've run out of time.</FONT>
<FONT COLOR="#000000">Thanks for taking a look.</FONT>
<FONT COLOR="#000000">Andrew</FONT>
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