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Date: Mon, 5 Feb 2001 23:49:25 +0000
From: Tony Finch <dot@dotat.at>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: dank@alumni.caltech.edu, Linus Torvalds <torvalds@transmeta.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Tony Finch <dot@dotat.at>
Subject: Re: TCP_NOPUSH on FreeBSD, TCP_CORK on Linux (was: Is sendfile all that
Message-ID: <20010205234925.J70673@hand.dotat.at>
In-Reply-To: <3A7F3420.A3B10510@alumni.caltech.edu> <E14Puvx-0004TB-00@the-village.bc.nu>
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Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
>> How close is TCP_NOPUSH to behaving identically to TCP_CORK now?
>> If it does behave identically, it might be time to standardize
>> the symbolic name for this option, to make apps more portable
>> between the two OS's.  (It'd be nice to also standardize the
>> numeric value, in the interest of making the ABI's more compatible, too.)
>
>That one isnt practical because of the way the implementations handle 
>boolean options. BSD uses bitmask based option setting for the basic
>options and Linus uses switch statements

No, that's only true for some of the socket-level options. For the TCP
options there isn't a direct correspondance between the option number
and the number of the flag in the PCB.

Tony.
-- 
f.a.n.finch    fanf@covalent.net    dot@dotat.at
"Dead! And yet there he stands!"
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