From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.devel Subject: Re: sqlite3 Date: Fri, 17 Dec 2021 08:38:44 +0100 Message-ID: <87r1ab1y0r.fsf@gnus.org> References: <87tufmjyai.fsf@gnus.org> <87mtl13vz2.fsf@gnus.org> <87ilvp3tzo.fsf@gnus.org> <83wnk5gduf.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="25526"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Dec 17 08:41:52 2021 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 1my7sF-0006RH-PZ for ged-emacs-devel@m.gmane-mx.org; Fri, 17 Dec 2021 08:41:51 +0100 Original-Received: from localhost ([::1]:33424 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1my7sE-0005SR-Qh for ged-emacs-devel@m.gmane-mx.org; Fri, 17 Dec 2021 02:41:50 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:46020) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1my7pM-0002n6-26 for emacs-devel@gnu.org; Fri, 17 Dec 2021 02:38:52 -0500 Original-Received: from [2a01:4f9:2b:f0f::2] (port=60590 helo=quimby.gnus.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1my7pK-0007Kd-Fm; Fri, 17 Dec 2021 02:38:51 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID :In-Reply-To:Date:References:Subject:Cc:To:From:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=ndblj3gSUKTNfpCh+vrF4Zj+cOMsNu3GCf9B6S17zyw=; b=ZQ4JtoG2ranBhiBtYVCj6NRLOW PWs+cHuZESJwSGyFpPtU2XX/78bqfKkRYjKukvjdcHn6AaPxoWMh5WvnJ0i91oXRSFDN42Dk/ZiJj jk4D/bEokChfZH8jsHun7v6bKZrQSYrfP5oznkpyAF1tqJ382JzSxiEUJ+CeJ8r4vbck=; Original-Received: from [84.212.220.105] (helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1my7pF-0005bl-Gz; Fri, 17 Dec 2021 08:38:48 +0100 X-Now-Playing: David Allred's _Driving Through the Aftermath of a Storm on a Clear Day_: "Sunbeam" In-Reply-To: <83wnk5gduf.fsf@gnu.org> (Eli Zaretskii's message of "Thu, 16 Dec 2021 10:20:56 +0200") X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a01:4f9:2b:f0f::2 (failed) Received-SPF: pass client-ip=2a01:4f9:2b:f0f::2; envelope-from=larsi@gnus.org; helo=quimby.gnus.org X-Spam_score_int: -35 X-Spam_score: -3.6 X-Spam_bar: --- X-Spam_report: (-3.6 / 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, RCVD_IN_DNSWL_MED=-2.3, RDNS_NONE=0.793, 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" Xref: news.gmane.io gmane.emacs.devel:282193 Archived-At: Eli Zaretskii writes: >> If I write-region to a file, and then rename the file to "foo.value" in >> one Emacs, then another Emacs may or may not get a file-error like this: >>=20 >> (file-error "Opening input file" "Permission denied" >> "c:/Users/larsi/AppData/Local/Temp/emacs-test-nJO8TU-multisession/files/= sbar/sbar.value") > > Is this code on master? If so, can you show some recipe to reproduce > this? It's the multi-test-files-simple code in multisession-tests.el (but you have to revert ed77d1a8c0 to see it). >> There's probably something about file locking on Windows that I don't >> understand. > > Who does the file locking in this case, and by what means? That's what I don't know. What I think the code does is this: 1) First Emacs 1 writes the file. 2) Then I start another Emacs, and it also writes the file, and then that Emacs exits. 3) Then Emacs 1 wants to read the file, and it fails with that error. If Emacs 1 waits a bit, then it's apparently allowed to open that file, but I'm not quite sure about that. Which is where I gave up trying to debug this and posted the mail. =F0=9F= =98=80 --=20 (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no