Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759564Ab1CDLwt (ORCPT ); Fri, 4 Mar 2011 06:52:49 -0500 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:56531 "EHLO www.etchedpixels.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1759519Ab1CDLwr (ORCPT ); Fri, 4 Mar 2011 06:52:47 -0500 Date: Fri, 4 Mar 2011 11:49:37 +0000 From: Alan Cox To: Steffen Sledz Cc: linux-kernel@vger.kernel.org, linux-net@vger.kernel.org, Mario Schuknecht , "Fred N. van Kempen" , Mark Evans , Corey Minyard , Florian La Roche , Charles Hedrick , Linus Torvalds , Alan Cox , Matthew Dillon , Arnt Gulbrandsen , Jorge Cwik , Matthew Dillon , Alan Cox , Linus Torvalds , Charles Hedrick , "" Subject: Re: [PATCH] tcp: ioctl type SIOCOUTQNSD returns amount of data not sent Message-ID: <20110304114937.6ae1b203@lxorguk.ukuu.org.uk> In-Reply-To: <4D64FA12.4070800@dresearch.de> References: <1286271154-18600-1-git-send-email-m.schuknecht@dresearch.de> <4D64FA12.4070800@dresearch.de> X-Mailer: Claws Mail 3.7.8 (GTK+ 2.22.0; x86_64-redhat-linux-gnu) Face: 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 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1660 Lines: 43 On Wed, 23 Feb 2011 13:14:10 +0100 Steffen Sledz wrote: > Am 05.10.2010 11:32, schrieb Mario Schuknecht: > > In contrast to SIOCOUTQ which returns the amount of data sent > > but not yet acknowledged plus data not yet sent this patch only > > returns the data not sent. > > > > For various methods of live streaming bitrate control it may > > be helpful to know how much data are in the tcp outqueue are > > not sent yet. > > > > Signed-off-by: Mario Schuknecht > > --- > > include/asm-generic/ioctls.h | 1 + > > include/linux/sockios.h | 1 + > > net/ipv4/tcp.c | 9 +++++++++ > > 3 files changed, 11 insertions(+), 0 deletions(-) > > > > diff --git a/include/asm-generic/ioctls.h b/include/asm-generic/ioctls.h > > index a321665..b87115b 100644 > > --- a/include/asm-generic/ioctls.h > > +++ b/include/asm-generic/ioctls.h > > @@ -72,6 +72,7 @@ > > #define TCSETXF 0x5434 > > #define TCSETXW 0x5435 > > #define TIOCSIG _IOW('T', 0x36, int) /* pty: generate signal */ > > +#define TIOCOUTQNSD 0x5437 These are tty not socket ioctl codes. For various historical reasons some of them got sort of emulated by the socket layer in Unix and thus in Linux. If you plan to add one to Linux then please post the accompanying *tty layer* patches and reasoning, otherwise if it is socket only please stick to the socket ioctl. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/