X-Recipient: archive-cygwin AT delorie DOT com X-Spam-Check-By: sourceware.org Date: Mon, 2 Mar 2009 14:45:41 -0500 From: Christopher Faylor To: cygwin AT cygwin DOT com Subject: Re: job control: "set CYGWIN=tty" but ^Z doesn't work Message-ID: <20090302194541.GB6805@ednor.casa.cgf.cx> Reply-To: cygwin AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com References: <49AC13A4 DOT 5070507 AT smart DOT net> <416096c60903021131t6955fb6dme775b9853804e41e AT mail DOT gmail DOT com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <416096c60903021131t6955fb6dme775b9853804e41e@mail.gmail.com> User-Agent: Mutt/1.5.16 (2007-06-09) Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: 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 Mon, Mar 02, 2009 at 07:31:54PM +0000, Andy Koppe wrote: >2009/3/2 Daniel S.: >>What setup is need to get ^Z to suspend the current process? >> >>The CygWin manual Environment Variables section at >>http://cygwin.com/cygwin-ug-net/setup-env.html says: >> >>?The CYGWIN variable is used ... [Y]ou can ... set it to tty (e.g. >>to support ?job control with ^Z etc...) using a syntax like this in the >>DOS shell, before ?launching bash. > >You have to make sure that the CYGWIN variable is set before any Cygwin >programs are run, because it is read when the Cygwin DLL is first >loaded. Exiting all Cygwin processes before invoking cygwin.bat again >should do the trick. That shouldn't be necessary. The CYGWIN=tty is inherited by just one process. It isn't shared. >> for (( i = 1 ; i '<' 100000 ; i = i + 1 )) ; do : ; done Cygwin's CTRL-Z emulation isn't perfect. It may not work well in a scenario where you're in a tight loop in user space code which is what the above bash loop would be. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/