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Date:      Mon, 30 Aug 1999 08:06:29 +0000 (GMT)
From:      Alfred Perlstein <bright@wintelcom.net>
To:        Dodge Ram <gupz@hotmail.com>
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: Sharing file descriptors
Message-ID:  <Pine.BSF.4.05.9908300805090.6392-100000@fw.wintelcom.net>
In-Reply-To: <19990830142553.77697.qmail@hotmail.com>

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On Mon, 30 Aug 1999, Dodge Ram wrote:

> Hi,
> 
> 	Have a question on whether it is possible to share
> file descriptors between two processes.
> 
> 	The purpose is to have a stanby process take over when
> the primary process fails. The primary process creates/deletes
> socket connections at run time. Forking does not scale well when
> the rate of connection creates/deletes in high.
> 
> 	If there is an alternative approach to do this kindly let
> me know.
> 
> 	Any helpful pointers are greatly appreciated.

two options I can think of:

1) file descriptor passing (described in Unix Network Programming Vol I)
2) shared address fork (should be on http://lt.tar.com)

good luck,
-Alfred



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