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: Catch arbitrary signal and throw it later in C Date: Fri, 14 Apr 2023 07:48:55 +0800 Message-ID: <87wn2fjqc8.fsf@yahoo.com> References: <7EA1F972-ADC7-4362-9E75-60C481FA8B2D@gmail.com> <87edookx7s.fsf@yahoo.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="34725"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: Ruijie Yu , emacs-devel@gnu.org To: Yuan Fu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Apr 14 01:50:19 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 1pn6hm-0008rz-Aw for ged-emacs-devel@m.gmane-mx.org; Fri, 14 Apr 2023 01:50:18 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pn6gj-0002Ys-O7; Thu, 13 Apr 2023 19:49:13 -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 1pn6gi-0002Yj-7R for emacs-devel@gnu.org; Thu, 13 Apr 2023 19:49:12 -0400 Original-Received: from sonic305-22.consmr.mail.ne1.yahoo.com ([66.163.185.148]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pn6gf-0004Ds-Sn for emacs-devel@gnu.org; Thu, 13 Apr 2023 19:49:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1681429746; bh=BbwBbBzQD5LH/uGrUmSz8RnergN6y5wTgYuFrPmXmzk=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From:Subject:Reply-To; b=uYFKlBFVCyvBT6s21FF2YKdFyg0TSoD2GvCjaY0Igh+apKcYzD9thkSvhXwsnFb/GfSSS3ItTAABkr4OirjrmdX7jvUIc/KADa8i4k0jT9U6WsyxzIl0kxa6vp9hcJFOkM4nirCYJmlZCMpbe+tCSHibODtkDMRqX1EZGTm/rsh7LSHIYoFHATw/pI5tBH3s5LF6cwMMWrdvYZv9zzUIq6w3pdd75xRHsWcowZsp+djOTLlHFJL+HlZQcDAz1E8vOE28HuLhfkAbMApnSJ6xR8nnMbVZZkzze1afWUxY3smurKuQhYApkFeIFgy8NolwCizR1Kpo3cOyzkKVVO8xAw== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1681429746; bh=fEr4+ykabK69E/s21jAE0mLwjUpZ6UU1y2W0eZ/2mY/=; h=X-Sonic-MF:From:To:Subject:Date:From:Subject; b=OrMM8HMtPQ+JIMAJi4oY+lXj1tTe2h1sNtX1cQWrq/OWQrDKa+vpKeQL+0WE6HIP7l2qQVY7TbESzBqO95nzSI79NkBG2DoHZV1Cr4r+A8Dr5NFIoUIca5fUfDXd19ytBvFBWdeBw7AZ2ntkbSV1SZ0hAI6aX/kun9++Us62BbcEjOQWu9iVlVHmmu4mOq1J3UgeB0uxI+PW+ahQ/TBP8x7RdRENp2jFRU0BjY3aBuJIy9arafSXB42BX0+poHbabMnAjVrkYsz0hvSiT2Ucw1iZJxQvpbgaNapu+4buSNV3Z+sukzG5N4qrWcY9TXX1mfe9xHVFu4G0m2ZC2nVNqw== X-YMail-OSG: g7I8ghgVM1mW_Dgz8JcGosvfb9rE7ma3zWxv1Rkheje.QZkx2AFjeTUiJc4n5vw ZpdzRMO3W34m9b9C08M8OgzoVOGqVUFKt92SALTkiqnS_1VfcLW83qU5di6iZ2HcbCbyqiIijKPO x1i1.iZp4N0wDNGfNWqBv1gJrAFICgbn4uhNu_bDr61PJtzx0ioqdbWgX2TMX1AZtxMswabmIULJ ZSkl1uRe7GaHoQh2eCHAxr0TX314b8hdZ9Zvth2xss.VYXTVmwUyd3WHzrb1leQMaP51blW_QN0F 4LVys9ei1QqHtX5DcCMP3QdAAgW0zs.XdhqrR5Fme_KLb6SXNtGmihq7CGPLRNPuuv5.ImhiKcbJ 1.SWpqnPPNNxkCj8ITQ52z9mZTK4KTaIT7tyrjil2VxWOLOPg2gqR0xMumOrlQ4sxSdl0V0icAfX TB19Bw1EnJUpHZKwwM.cdCzvcwBi9.Br82bX9AoPdgREoDxCEkjSGmFQJCiqPlUqY4XcA3CMc52f lAOyO_zN3ATPt8yTC1r_o5ZfT9.y.z5PnK.KCIMvHBgYTAcWe07ApYsHTFB2TmSwt1D3OJXD.0n9 suARcscDL5OZbYYmGw_sanKqbk9aF18PLg1dxqlFd7k8PwFleDZ5ajDrNZV69Fal_JqV400dZQwG 5ZQGcCnpd2ErKMjswViMiNfBqcQ8YWkxWCfMZ0nCCDmuplFrha1VzpUf5mhRI.9M6CvqxJBCHZ7i Ra0bZ_0KkOrCazhF07vOVCX51jXHFPLMNN.tAutGGXXnIfJayZnd3srDZS6fpNQJmcd0Rs1hd8fw KhQGeCsKVB86EjWA5WUi9tZCQ.bYHy8WtKWak5bd.W X-Sonic-MF: X-Sonic-ID: 284f65ef-971b-4ad8-96c1-fb9271f8d30d Original-Received: from sonic.gate.mail.ne1.yahoo.com by sonic305.consmr.mail.ne1.yahoo.com with HTTP; Thu, 13 Apr 2023 23:49:06 +0000 Original-Received: by hermes--production-sg3-6d6fb994f6-7thcs (Yahoo Inc. Hermes SMTP Server) with ESMTPA ID 69efd5557fddd65d4f7bc9cb72a828bb; Thu, 13 Apr 2023 23:48:59 +0000 (UTC) In-Reply-To: (Yuan Fu's message of "Thu, 13 Apr 2023 15:18:19 -0700") X-Mailer: WebService/1.1.21365 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Received-SPF: pass client-ip=66.163.185.148; envelope-from=luangruo@yahoo.com; helo=sonic305-22.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 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:305298 Archived-At: Yuan Fu writes: > Thanks, this is very clear and helpful. So the signal routine will > unwind the pdl and run my cleanup function, right? And if no signal > happens, my cleanup function is removed from the pdl by unbind_to. The cleanup function is still run in that case. If you don't want it to be run, you have to call: clear_unwind_protect (count); prior to calling `unbind_to'.