Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 23 Oct 2002 16:30:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 23 Oct 2002 16:30:21 -0400 Received: from c3po.aoltw.net ([64.236.137.25]:14502 "EHLO netscape.com") by vger.kernel.org with ESMTP id ; Wed, 23 Oct 2002 16:30:19 -0400 Message-ID: <3DB7083E.5030206@netscape.com> Date: Wed, 23 Oct 2002 13:36:14 -0700 From: jgmyers@netscape.com (John Myers) User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.2b) Gecko/20021016 X-Accept-Language: en-us, en MIME-Version: 1.0 To: linux-aio CC: linux-kernel Subject: async poll References: In-Reply-To: Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="------------ms010401090802070506080008" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6665 Lines: 112 This is a cryptographically signed message in MIME format. --------------ms010401090802070506080008 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Davide Libenzi wrote: >Maybe my understanding of AIO on Linux is limited but how would you do >async accept/connect ? Will you be using std poll/select for that, and >then you'll switch to AIO for read/write requests ? > If a connection is likely to be idle, one would want to use an async read poll instead of an async read in order to avoid having to allocate input buffers to idle connections. (What one really wants is a variant of async read that allocates an input buffer to an fd at completion time, not submission time). Sometimes one wants to use a library which only has a nonblocking interface, so when the library says WOULDBLOCK you have to do an async write poll. Sometimes one wants to use a kernel interface (e.g. sendfile) that does not yet have an async equivalent. Accept/connect are in this class--there should be nothing to prevent us from creating async versions of accept/connect. --------------ms010401090802070506080008 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIK7TCC A4UwggLuoAMCAQICAlvfMA0GCSqGSIb3DQEBBAUAMIGTMQswCQYDVQQGEwJVUzELMAkGA1UE CBMCQ0ExFjAUBgNVBAcTDU1vdW50YWluIFZpZXcxGzAZBgNVBAoTEkFtZXJpY2EgT25saW5l IEluYzEZMBcGA1UECxMQQU9MIFRlY2hub2xvZ2llczEnMCUGA1UEAxMeSW50cmFuZXQgQ2Vy dGlmaWNhdGUgQXV0aG9yaXR5MB4XDTAyMDYwMTIwMjIyM1oXDTAyMTEyODIwMjIyM1owfTEL MAkGA1UEBhMCVVMxGzAZBgNVBAoTEkFtZXJpY2EgT25saW5lIEluYzEXMBUGCgmSJomT8ixk AQETB2pnbXllcnMxIzAhBgkqhkiG9w0BCQEWFGpnbXllcnNAbmV0c2NhcGUuY29tMRMwEQYD VQQDEwpKb2huIE15ZXJzMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDsB5tbTLWFycke 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