From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS3215 2.6.0.0/16 X-Spam-Status: No, score=-4.2 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED,SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from sourceware.org (server2.sourceware.org [IPv6:2620:52:3:1:0:246e:9693:128c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id 353341F8C6 for ; Mon, 23 Aug 2021 09:39:05 +0000 (UTC) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id B51633857C77 for ; Mon, 23 Aug 2021 09:39:02 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B51633857C77 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1629711542; bh=/ZLIMNwri27AvyZD2GiRffYUcUm7FF678jasrPFYRaw=; h=To:Subject:References:Date:In-Reply-To:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=k8Ox8o6SmXITaqtP4YVSdu7qMZsZOlODSqbZtqPXzdRVKfr2p5khgX4RqEGSfmyUF JktTWLLXJW+68ZsRsP5aHI0GwxT3pgBD92uUoStoLyfNEsHlb6GN7r0d8gNyLTTpEl PECskOIGHpwGUIoeO9+IjNprQ/SJk1ECOX7O3zpc= Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTP id 5C3CB3858417 for ; Mon, 23 Aug 2021 09:38:42 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 5C3CB3858417 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-524-A725GCRgNtasCBEnRSPRSQ-1; Mon, 23 Aug 2021 05:38:40 -0400 X-MC-Unique: A725GCRgNtasCBEnRSPRSQ-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 9BA281008065; Mon, 23 Aug 2021 09:38:39 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.39.194.2]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5D7C118361; Mon, 23 Aug 2021 09:38:38 +0000 (UTC) To: Petr Vorel Subject: Re: Async cacellation and pthread_cleanup_push References: <87zgtxuxa8.fsf@igel.home> <87fsvp9qcz.fsf@oldenburg.str.redhat.com> Date: Mon, 23 Aug 2021 11:38:36 +0200 In-Reply-To: (Petr Vorel's message of "Fri, 6 Aug 2021 07:25:33 +0200") Message-ID: <87y28sqz4z.fsf@oldenburg.str.redhat.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Florian Weimer via Libc-alpha Reply-To: Florian Weimer Cc: libc-alpha@sourceware.org, Andreas Schwab Errors-To: libc-alpha-bounces+e=80x24.org@sourceware.org Sender: "Libc-alpha" * Petr Vorel: > Hi Florian, > >> * Andreas Schwab: > >> > Is pthread_cleanup_push supposed to work together with async >> > cancellation? > >> In our implementation? I think so. POSIX doesn't require it, though. > > Would you please share link to POSIX docs where it's stated? > It'd help us to fix LTP POSIX tests. Not sure if you seen my earlier comment: [Section] 2.9.5 Thread Cancellation, Thread Cancellation Cleanup Handlers and Async-Cancel Safety. The first section calls pthread_cleanup_push a function, the second section does not list it. The section number refers to POSIX.1-2017. I hope this clarifies the matter. Thanks, Florian