From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Starting a subprocess in stopped state Date: Fri, 05 May 2017 10:29:52 +0300 Message-ID: <83tw4zg3rj.fsf@gnu.org> References: <831ss7hyh0.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1493969467 1880 195.159.176.226 (5 May 2017 07:31:07 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 5 May 2017 07:31:07 +0000 (UTC) Cc: emacs-devel@gnu.org To: Daiki Ueno Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri May 05 09:31:04 2017 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1d6Xhf-0000O4-88 for ged-emacs-devel@m.gmane.org; Fri, 05 May 2017 09:31:03 +0200 Original-Received: from localhost ([::1]:45454 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d6Xhk-0006ZV-Nw for ged-emacs-devel@m.gmane.org; Fri, 05 May 2017 03:31:08 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40578) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d6Xgz-0006WC-JK for emacs-devel@gnu.org; Fri, 05 May 2017 03:30:25 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d6Xgy-0002NF-Qn for emacs-devel@gnu.org; Fri, 05 May 2017 03:30:21 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:46177) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d6Xgp-0002IV-4o; Fri, 05 May 2017 03:30:11 -0400 Original-Received: from 84.94.185.246.cable.012.net.il ([84.94.185.246]:3896 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1d6Xgn-0008LQ-QO; Fri, 05 May 2017 03:30:10 -0400 In-reply-to: <831ss7hyh0.fsf@gnu.org> (message from Eli Zaretskii on Tue, 02 May 2017 22:04:27 +0300) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:4830:134:3::e X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.org gmane.emacs.devel:214574 Archived-At: > Date: Tue, 02 May 2017 22:04:27 +0300 > From: Eli Zaretskii > > My reading of process.c seems to indicate that the :stop attribute of > make-process only has effect on network or serial or pipe process > types; a process running a program cannot use that attribute, and can > only be stopped by explicitly calling stop-process. Is this correct, > or did I miss something? This is not explicitly documented. > > What I see in the code is that when make-process is called with the > :stop attribute non-nil, the file descriptor to be used for reading > the process output is not added to the list of descriptors watched by > pselect. But that doesn't really suspend the process like SIGTSTP > would, right? And I see no other code that specifically handles the > :stop attribute. Am I missing something? Ping! Can someone please confirm or refute my observations above? Daiki?