Re: msg-id

["Charles Lindsey" <chl@xxxxxxxxxxxxxxxx>]

In <Pine.LNX.4.53.0412131028230.17897@xxxxxxxxxxxxxxxx> John Stanley <stanley@xxxxxxxx> writes:

>I read your example. Since the pid is part of the id, the only way that my 
>algorithm could duplicate message ids is for TWO processes to have the 
>same message id at the same epochtime AND for the locking mechanism that 
>prevents duplicate sequences to fail. I know of NO operating system that 
>assigns the same pid to two different processes, so even if the sequence 
>number fails, the pids will be different.

Consider two computers on the same LAN, mounting files from a common
source by NFS. They might well be using the same pid at the same instant
(once in a thousand years, maybe).

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