netdev - Re: sendfile()? Re: SO_LINGER dead: I get an immediate RST on 2.6.24?

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Message-ID: <20090114113026.GC18662@gondor.apana.org.au>
Date:	Wed, 14 Jan 2009 22:30:26 +1100
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Bill Fink <billfink@...dspring.com>
Cc:	ilpo.jarvinen@...sinki.fi, zbr@...emap.net,
	bert.hubert@...herlabs.nl, h.willstrand@...il.com,
	netdev@...r.kernel.org
Subject: Re: sendfile()? Re: SO_LINGER dead: I get an immediate RST on
	2.6.24?

On Wed, Jan 14, 2009 at 04:05:50AM -0500, Bill Fink wrote:
>
> Well, my man tcp(7) just says:
> 
>    SIOCOUTQ
>           Returns the amount of unsent data in the socket send queue.  The
>           socket must not be in LISTEN state, otherwise an error  (EINVAL)
>           is returned.

You still read man pages? :)

If you look at the actual code, SIOCOUTQ returns

	tp->write_seq - tp->snd_una

Really you can't get any more precise than that for what you want.

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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