From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: How to detect two emacs process in Elisp code? Date: Thu, 03 Sep 2020 04:41:02 +0200 Message-ID: <87363z8tvl.fsf@ebih.ebihd> References: <87ft9s283t.fsf@gmail.com> Reply-To: Emanuel Berg Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31429"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:3AnRPVcHuBgw/F3GVyOKxxjIwMs= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Thu Sep 03 04:41:41 2020 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kDfC1-000853-PY for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 03 Sep 2020 04:41:41 +0200 Original-Received: from localhost ([::1]:51206 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kDfC0-0002iT-SM for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 02 Sep 2020 22:41:40 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:49636) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kDfBb-0002iA-Fe for help-gnu-emacs@gnu.org; Wed, 02 Sep 2020 22:41:15 -0400 Original-Received: from static.214.254.202.116.clients.your-server.de ([116.202.254.214]:59914 helo=ciao.gmane.io) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kDfBX-0003P4-K2 for help-gnu-emacs@gnu.org; Wed, 02 Sep 2020 22:41:14 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1kDfBU-0007Xn-Bq for help-gnu-emacs@gnu.org; Thu, 03 Sep 2020 04:41:08 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Mail-Copies-To: never Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/02 22:41:09 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:123912 Archived-At: stardiviner wrote: > I load desktop-save-mode session in init.el. > But when using "bug-hunter-init-file", I need to > exclude this session init file. > > Here is my try: > > #+begin_src emacs-lisp > ;;; detect external system has Emacs process running? > ;;; If yes, like `bug-hunter' is running. Then don't load session. > ;;; FIXME > (let ((emacs-processes > (length (mapcar > 'string-to-number > (seq-filter > (lambda (str) > (not (string-empty-p str))) > (split-string > ;; (shell-command-to-string "ps -C emacs -o pid=") > (shell-command-to-string "ps -C emacs -o pid=") > "\n")))))) > (when (<= emacs-processes 1) > (message "init-emacs-session loading") > (require 'init-emacs-session))) > #+end_src Try this: (require 'seq) (defun how-many-emacs () (let ((emacs-processes (length (mapcar #'string-to-number (seq-filter (lambda (str) (not (string-empty-p str)) ) (split-string (shell-command-to-string "ps -C emacs -o pid=") "\n") ))))) (message (format "Emacs process: %d" emacs-processes)) )) ;; (how-many-emacs) ; 1 -- underground experts united http://user.it.uu.se/~embe8573 https://dataswamp.org/~incal