Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263381AbTETA5T (ORCPT ); Mon, 19 May 2003 20:57:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263385AbTETA5T (ORCPT ); Mon, 19 May 2003 20:57:19 -0400 Received: from rwcrmhc53.attbi.com ([204.127.198.39]:40690 "EHLO rwcrmhc53.attbi.com") by vger.kernel.org with ESMTP id S263396AbTETA5P (ORCPT ); Mon, 19 May 2003 20:57:15 -0400 Message-ID: <3EC986ED.80604@kegel.com> Date: Mon, 19 May 2003 18:37:49 -0700 From: Dan Kegel User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3) Gecko/20030313 X-Accept-Language: de-de, en MIME-Version: 1.0 To: William Lee Irwin III CC: Davide Libenzi , John Myers , linux-aio@kvack.org, Linux Kernel Mailing List Subject: Re: Comparing the aio and epoll event frameworks. References: <200305192333.QAA12018@pagarcia.nscp.aoltw.net> <3EC9807D.3080804@kegel.com> <20030520010258.GQ2444@holomorphy.com> In-Reply-To: <20030520010258.GQ2444@holomorphy.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1366 Lines: 41 William Lee Irwin III wrote: > Davide Libenzi wrote: > >>>>Adding a single shot feature to epoll takes about 5 lines of code, >>>>comments included :) You know how many reuqests I had ? Zero, nada. > > > On Mon, 19 May 2003, Dan Kegel wrote: > >>>I thought edge triggered epoll *was* single-shot. > > > On Mon, May 19, 2003 at 05:47:15PM -0700, Davide Libenzi wrote: > >>For single shot I mean that once you receive one event, you will not >>receive more events for that fd if you do not rearm it. Suppose you >>receive 1000 bytes of data and you get an event (EPOLLIN). If after 10 >>seconds you receive another 1000 bytes, you will receive another event. >>This is not single shot. > > > I think this would be useful for network daemons that would like to > fairly schedule responses (i.e. not re-arm until a client on a given fd > deserves a turn again). IRC daemons would appear to be a perfect > candidate for such. ... No need. The plain old edge triggered behavior can handle this nicely. - Dan -- Dan Kegel http://www.kegel.com http://counter.li.org/cgi-bin/runscript/display-person.cgi?user=78045 - 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/