On Sun, 11 Dec 2005 08:30:06 -0500
[EMAIL PROTECTED] wrote.
> On Dec 11, 2005, at 4:23 AM, Tadashi Matsumoto wrote:
> > Hello
> > I was looking into the following code of intid's __init__.py.
> > I think it is better to use, for example, 2**30 instead of 2**31.
> Looks like a good catch to me.
> Also looks like 2**31 -1 would be sufficient (typical sys.maxint),
No it wouldn't, because intid will increase.
> rather than 2**30...or maybe just sys.maxint (though I wouldn't be
> surprised if the author had consciously rejected maxint for database
> > By the way, there is a probability (less than 1/2**31 percent) of
> > generating same intids, if thread switching occurs between the line
> > 114 and 115.
> At which point you should get a conflict error, which in Zope would
> cause one of the transactions to be retried without the user's
> knowledge and everything would still be good.
Generating same intids does not always mean a conflict error.
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