X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=-1.1 required=5.0 tests=AWL,BAYES_00,SPF_NEUTRAL X-Spam-Check-By: sourceware.org Message-ID: <4F038492.60106@cs.utoronto.ca> Date: Tue, 03 Jan 2012 17:43:30 -0500 From: Ryan Johnson User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:9.0) Gecko/20111222 Thunderbird/9.0.1 MIME-Version: 1.0 To: cygwin AT cygwin DOT com Subject: Re: Efficient posix_spawn implementation for Cygwin References: <2b113761fca8acd2a86179e108c83c6a DOT squirrel AT dancol DOT org> In-Reply-To: <2b113761fca8acd2a86179e108c83c6a.squirrel@dancol.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com On 03/01/2012 5:25 PM, dancol AT dancol DOT org wrote: > posix_spawn [1] is an optional POSIX facility that allows programs to > start other programs without using fork or vfork. I've created an > efficient implementation of posix_spawn for Cygwin. The code is available > at https://github.com/dcolascione/cygspawn. > > This library uses Cygwin's nonstandard spawn* family calls in process.h to > provide the full suite of posix_spawn* functionality. Implementing > posix_spawn in terms of spawn turns out to be non-trivial. Nevertheless, > using posix_spawn can improve process startup performance considerably, > especially for large programs: This probably belongs at cygwin-dev, but it sounds interesting (especially if it allows less-frequent invocation of the rebaseall ritual). However, you should check out the copyright assignment requirements [2] if you want the code to make it upstream. [2] http://cygwin.com/contrib.html Regards, Ryan -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple