From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Po Lu Newsgroups: gmane.emacs.devel Subject: Re: call-process should not block process filters from running Date: Wed, 28 Jun 2023 19:56:11 +0800 Message-ID: <87zg4j6bs4.fsf@yahoo.com> References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="14517"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: emacs-devel@gnu.org, app-emacs-dev@janestreet.com To: Spencer Baugh Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed Jun 28 13:57:32 2023 Return-path: Envelope-to: ged-emacs-devel@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 1qETnf-0003Xx-Op for ged-emacs-devel@m.gmane-mx.org; Wed, 28 Jun 2023 13:57:31 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qETmi-0003er-99; Wed, 28 Jun 2023 07:56:34 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qETmb-0003ef-VQ for emacs-devel@gnu.org; Wed, 28 Jun 2023 07:56:26 -0400 Original-Received: from sonic301-31.consmr.mail.ne1.yahoo.com ([66.163.184.200]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qETmZ-0004Ea-5n for emacs-devel@gnu.org; Wed, 28 Jun 2023 07:56:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1687953380; bh=avPIjbhqwImBGgK79d+btgBF+zKNSOk+GkR8EjKBRkQ=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From:Subject:Reply-To; b=kOjeXug6u0LqqnA9gpRKuuJKp9kgzJn2M3q+gPNOtw+ubJ3UoFOX2JLb4I+S70+8OvlK5zCqtRDib3Nn+70I9LQdNijc+dlqFNjKqUhms9+3HQr0DsA1mp8cZEhubfu7xZlclQa19lGWAFP9mlMs0OkcVmAgoeK8ieDgE+AXN7HU4CtgbEc25KoXRuT0Re1ALR12BPjAz1ZMjYT4B0dQwYOWkwghPyA/bTUZu66lJFaOZy/RsGo29pwATde0H+zzelb2h6mrTFbAPmGrIIEsg2jI8OmcG4hSZ/uUiqNO83kq55PeDJABI/hNjvl92m8rk5UOtcgaxbVEZItd3PubEw== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1687953380; bh=DpSAr/7D6EKvFQV5qm7Nk+klW9TZS8nKYWnQqSa3Unl=; h=X-Sonic-MF:From:To:Subject:Date:From:Subject; b=gS4o7H1lCMdAu3Vn7fK4gv80ZYWhHpKe4dIsHtO/UFmFCVEau9kDAS0TPi2J0gDsfED0pwZhBOnq6QThP+CfBaMfZmy1nLrk9mRkAP1Lcjs48NJwArfuSCKPxmAokeA94yvrPp9gkCig523h1CA+MasXFwHLFcN9RcH2z9WPCp2dqY2XlQE9xWxGZEmK+Q4lDcB5a/oMxVpQ4YclYgc4FeZaY1EqBGD1g2gUMYNFbJcyUGCwgiuhffmVbvhZ6WgE44RnYvG+/R5BAA460HwdXSgAPYBUmeuJMm+UuVr7ivOomFsbDIORSzWpRd3e3ZgkgyXmFqjObkBa4p75hgzyRg== X-YMail-OSG: zFtLXlwVM1ljLL3Tt702Hwgbpp8aZunL9PgQiBJ.sB3N3KIkd0kQ9lbZQWTUR7q T6tOOtsypbiMjAIveXb2l_cLO13IwcV0WFlsdIThdcYXoZbJy7E_MHPQvH0HA1pqnXDIuMsKfN9H XD6YUUBZnpeeKAPbacPWzP0caZFD.bteqL2WOEP3v7PJD9q1ODexjXLEr4RyiXQ0OhQUYTPfzid6 ErjavC.0sYQdYRfFr4.LYltuvBvabWKe3RvDnv0nDxv3XKBE1tnj4L5BPdztzlgdJKv2sCr1WCzK xY3dlN9icApnrntkgN7qmvdYyFVlRez4j1WRZaJTNr3phcem7nd4Ed7VFtn921wPQIF3Q1RN7taF TkbOWym.2EY3GIqZWFH3yJsZANEKq8aPIhFexaiYtc0Wq4D3lrzz9_mXCDTPxgzGb_kyn9fTYmfb nkdjViFXiNHTL.Ah2FUQdvWufe7UKEeakTIN6sBCU7wONQl4zIPzRq7mpLq9tagDUXIAg32Mi65X tS9QjWPsUV5A7hnxUQi2pzgs2in1jMbBUwOfAhoYzAPj0xYoYkDPt4x7fOsYkdwZoOTcaazYFRdy P.5E90jIzbJMeqBuKbOjtx_2MIetd0tXIS45At_ZUxr4sxX2SUfSgOKLBM3OZHScy46cGAwAYUkn HwhB026FR3WL2eFeJtOyEiB3umGvP8dbGHiAEbYcOkslvwcsgNY8N7humuFqRtAzXoNKlXyBKlXB cFJ7b5FWrsIVqeffZfXfBnxhSjmpI3rizhPtC5K4SlZ_GT0hpXycbWaVwi_TqrbAOhDJRr7Uee5G CkycqP.v15b6cruKiUADf3lQKgSMreBdlWF5Ma_Z1o X-Sonic-MF: X-Sonic-ID: 311769b5-ecaa-4f86-88b8-1e3b6b1a9eb3 Original-Received: from sonic.gate.mail.ne1.yahoo.com by sonic301.consmr.mail.ne1.yahoo.com with HTTP; Wed, 28 Jun 2023 11:56:20 +0000 Original-Received: by hermes--production-sg3-67fd64777-8smhp (Yahoo Inc. Hermes SMTP Server) with ESMTPA ID 0fa95a6efc25507b9591bd25b01480da; Wed, 28 Jun 2023 11:56:16 +0000 (UTC) In-Reply-To: (Spencer Baugh's message of "Tue, 27 Jun 2023 17:55:00 -0400") X-Mailer: WebService/1.1.21557 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Received-SPF: pass client-ip=66.163.184.200; envelope-from=luangruo@yahoo.com; helo=sonic301-31.consmr.mail.ne1.yahoo.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 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-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:307280 Archived-At: Spencer Baugh writes: > When Lisp code calls call-process, then while call-process is running, > all Lisp is blocked from running, including process filters and timers > created beforehand by other Lisp. This call-process behavior is > harmful, but we can fix call-process to not behave this way. > > This call-process behavior is harmful: > Many packages rely on their process filters and timers being able to > run: > - Packages which communicate over the network (such as ERC) > rely on being able to respond to heartbeats and prevent timeouts. > - Packages which respond to requests from other programs (such as EXWM) > rely on being able to respond to those requests. > A simple (shell-command "sleep 60") will cause most such packages to > break or behave poorly. Have you considered that many programs may conversely rely on the fact that call-process can not run Lisp through selection converters or process filters?