From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <467CBC93.3070204@free.fr>
Date: Sat, 23 Jun 2007 08:24:19 +0200
From: Philippe Anel <xigh@free.fr>
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To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] About 9P ...
References: <20070623043028.A0A7C1E8C51@holo.morphisms.net>
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Thank you Russ.

Russ Cox a =E9crit :
>> So unless Russ is right and that the=20
>> fact FIDS are choosen by the client has
>> been decided arbitrarily ... I still have=20
>> no answer to my question.
>>    =20
>
> In the current version of 9P, there is no reason
> why the client has to choose the fids (file ids).
> You don't have to believe me, but it's true.
>
> The client must choose the tags (request ids)
> since it sends the first request message without=20
> any input from the server.  The tags are what=20
> enable having multiple messages outstanding.
>
> There is an historical reason why fids are=20
> chosen by the client, but like most historical
> reasons, it no longer applies.  In very early
> versions of 9P (before the first edition release),
> there were no tags.  Replies were matched
> based on fid and type, so fids had to be chosen
> by the client, just as tags do now.=20
>
> Tags were introduced on November 21, 1990:
> http://swtch.com/go/fid2tag
>
> Russ
>
>
>
>  =20