From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27660 invoked by alias); 22 Aug 2010 18:57:30 -0000 Mailing-List: contact zsh-users-help@zsh.org; run by ezmlm Precedence: bulk X-No-Archive: yes List-Id: Zsh Users List List-Post: List-Help: X-Seq: 15321 Received: (qmail 13125 invoked from network); 22 Aug 2010 18:57:28 -0000 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on f.primenet.com.au X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.3.1 Received-SPF: pass (ns1.primenet.com.au: SPF record at ntlworld.com designates 81.103.221.56 as permitted sender) Message-Id: <201008221753.o7MHrg35003674@pws-pc.ntlworld.com> From: Peter Stephenson To: zsh-users@zsh.org Subject: Re: Synchronous vs. Asynchronous In-Reply-To: Message from Bart Schaefer of "Sat, 21 Aug 2010 22:42:29 PDT." <100821224229.ZM32224@torch.brasslantern.com> Date: Sun, 22 Aug 2010 18:53:42 +0100 X-Cloudmark-Analysis: v=1.1 cv=DhNl2YeytwJssBBGe49HJX82LNDFEEVkpVB34RXKaPo= c=1 sm=0 a=DogomfpGjd0A:10 a=NLZqzBF-AAAA:8 a=LKTj3kP46rt9z-WHEm8A:9 a=jtjz6Yz7i0u-MfHtB_kA:7 a=wjEXT_1Uc23QjUjx9XDQyIdhNaIA:4 a=_dQi-Dcv4p4A:10 a=HpAAvcLHHh0Zw7uRqdWCyQ==:117 Bart Schaefer wrote: > schaefer<515> /bin/echo >>(tty 0<&1) > /dev/ttys001 > schaefer<520> /bin/echo >>(cat 0<&1) > cat: stdin: Input/output error > > In neither case is there a SIGTTIN, so there's something wrong with this > analysis. Nothing's in the background here. The point of the change affecting >>(...) is that both processes are treated as foreground processes, so that both get ^C. So there's nothing to get SIGTTIN. I'll try to commit what I've got before I go on holiday on Tuesday. -- Peter Stephenson Web page now at http://homepage.ntlworld.com/p.w.stephenson/