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>>>>> "Neil" == Neil W Rickert <[EMAIL PROTECTED]> writes:
Neil> Michael Richardson <[EMAIL PROTECTED]> wrote:
>> Aside from trashing sequences (which I've experienced on occasion, no idea
>> why)
>> I've run into situations where I wind up doing an "inc" from two difference
>> sources into the same folder. Usually due to impatience on my part.
Neil> As far as I know, "inc" does to file locking, at least when writing
Neil> to the standard unix mailbox.
That's the source of the data.
I'm talking about putting stuff into +inbox.
>> The result was a mess of two processes using the same message numbers!
Neil> That should not be possible. I haven't looked at the code. But it
Neil> should be opening the file with "O_CREAT", which should fail if the
Neil> message already exists.
Neil> Unless there are major code deficiencies, creating new messages
Neil> should depend on the atomicity of unix file creation. No additional
Neil> locking should be required. That is supposed to be one of the
Neil> benefits of one message per file.
Hmm. That sounds reasonable.
Perhaps I'll run a test and see....
] ON HUMILITY: to err is human. To moo, bovine. | firewalls [
] Michael Richardson, Sandelman Software Works, Ottawa, ON |net architect[
] [EMAIL PROTECTED] http://www.sandelman.ottawa.on.ca/ |device driver[
] panic("Just another NetBSD/notebook using, kernel hacking, security guy"); [
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