From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Zhu Zihao Newsgroups: gmane.lisp.guile.devel Subject: Send scheme procedure as callback to foreign thread. Date: Tue, 11 Oct 2022 14:37:01 +0800 Message-ID: <86zge2lv5w.fsf@163.com> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="36724"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: mu4e 1.8.9; emacs 29.0.50 To: guile-devel Original-X-From: guile-devel-bounces+guile-devel=m.gmane-mx.org@gnu.org Tue Oct 11 08:42:13 2022 Return-path: Envelope-to: guile-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 1oi8xw-0009Qt-Pn for guile-devel@m.gmane-mx.org; Tue, 11 Oct 2022 08:42:12 +0200 Original-Received: from localhost ([::1]:52020 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oi8xv-0006bS-Js for guile-devel@m.gmane-mx.org; Tue, 11 Oct 2022 02:42:11 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:43118) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oi8xb-0006Zr-5C for guile-devel@gnu.org; Tue, 11 Oct 2022 02:41:51 -0400 Original-Received: from mail-m972.mail.163.com ([123.126.97.2]:61467) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oi8xU-00031P-5n for guile-devel@gnu.org; Tue, 11 Oct 2022 02:41:48 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-ID:MIME-Version; bh=zur+z bQniNFacD6a7yEvzxGMdlOq7sbxed0F6qPUlhI=; b=p0cDEZ2Ty9RiAjLR6KIyo iGvDTHvpk0S5Rc00HGGthySbc/1TKmF4r55duf/bi+4n9UicilsSQZhnZxu/HTRK 8b6cgKPDmRUwxye9g6jq4lsezyHnJAWzdYP3L4YSGYbhZDGBaDsTAsECvJ9wuhfa muabekxNkPw7l4k0KMICvI= Original-Received: from asus-laptop (unknown [163.125.249.189]) by smtp2 (Coremail) with SMTP id GtxpCgDHzqsTEEVjeJ0Tkg--.59393S2; Tue, 11 Oct 2022 14:41:24 +0800 (CST) X-CM-TRANSID: GtxpCgDHzqsTEEVjeJ0Tkg--.59393S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73 VFW2AGmfu7bjvjm3AaLaJ3UbIYCTnIWIevJa73UjIFyTuYvjxUbNVkUUUUU X-Originating-IP: [163.125.249.189] X-CM-SenderInfo: pdoosuxxwbztlvw6il2tof0z/1tbiKQaXr1Xl41iiqAAAsW Received-SPF: pass client-ip=123.126.97.2; envelope-from=all_but_last@163.com; helo=mail-m972.mail.163.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, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guile-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Developers list for Guile, the GNU extensibility library" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guile-devel-bounces+guile-devel=m.gmane-mx.org@gnu.org Original-Sender: "guile-devel" Xref: news.gmane.io gmane.lisp.guile.devel:21395 Archived-At: --=-=-= Content-Type: text/plain Content-Transfer-Encoding: quoted-printable In Guile FFI programming, we have procedure->pointer, which makes a Scheme procedure a foreign callback. And foreign library call use this callback. However, if this callback is called in a another foreign thread. The scheme context is not properly setup, It may cause crash or UB. IIUC, the procedure invoker "invoke_closure" defined in foreign.c doesn't use scm_with_guile. If we use scm_with_guile to make a foreign callback, would it be OK to execute Scheme procedure in multithreading cont= ext? =2D-=20 Retrieve my PGP public key: gpg --recv-keys B3EBC086AB0EBC0F45E0B4D433DB374BCEE4D9DC Zihao --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iIsEARYIADMWIQT4UAIrVkIEZilSHr2K2nJqP6LM8gUCY0UP+xUcYWxsX2J1dF9s YXN0QDE2My5jb20ACgkQitpyaj+izPKeIQD/Sa0yPw3alHacramNyj6eW/O20Vv6 a5w0UuGI+Gu2zh8BAJFLzKoqqsW1/dKl21WIB8ZfT//re4iTOIz8hxMk9aYC =WOFt -----END PGP SIGNATURE----- --=-=-=--