From mboxrd@z Thu Jan 1 00:00:00 1970 From: Johannes Sixt Subject: Re: [PATCH v2] git daemon: avoid waking up too often Date: Wed, 23 Jul 2008 08:51:47 +0200 Message-ID: <4886D503.7030106@viscovery.net> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: git@vger.kernel.org, Junio C Hamano To: Johannes Schindelin X-From: git-owner@vger.kernel.org Wed Jul 23 08:52:53 2008 Return-path: Envelope-to: gcvg-git-2@gmane.org Received: from vger.kernel.org ([209.132.176.167]) by lo.gmane.org with esmtp (Exim 4.50) id 1KLYDU-0007SN-0V for gcvg-git-2@gmane.org; Wed, 23 Jul 2008 08:52:52 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750988AbYGWGvv (ORCPT ); Wed, 23 Jul 2008 02:51:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750976AbYGWGvv (ORCPT ); Wed, 23 Jul 2008 02:51:51 -0400 Received: from lilzmailso01.liwest.at ([212.33.55.23]:27161 "EHLO lilzmailso01.liwest.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750978AbYGWGvu (ORCPT ); Wed, 23 Jul 2008 02:51:50 -0400 Received: from cm56-163-160.liwest.at ([86.56.163.160] helo=linz.eudaptics.com) by lilzmailso01.liwest.at with esmtpa (Exim 4.66) (envelope-from ) id 1KLYCS-0004DT-8e; Wed, 23 Jul 2008 08:51:48 +0200 Received: from [127.0.0.1] (J6T.linz.viscovery [192.168.1.42]) by linz.eudaptics.com (Postfix) with ESMTP id DCB8E6B7; Wed, 23 Jul 2008 08:51:47 +0200 (CEST) User-Agent: Thunderbird 2.0.0.6 (Windows/20070728) In-Reply-To: X-Spam-Score: 1.7 (+) X-Spam-Report: ALL_TRUSTED=-1.8, BAYES_99=3.5 Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: Johannes Schindelin schrieb: > To avoid waking up unnecessarily, a pipe is set up that is only ever > written to by child_handler(), when a child disconnects, as suggested > per Junio. > > This avoids waking up the main process every second to see if a child > was disconnected. This makes porting this beast to Windows practically impossible because we cannot have a poll() implementation that waits both on a listening socket and a pipe. :-( -- Hannes