X-Recipient: archive-cygwin@delorie.com DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 89C903858C56 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com; s=default; t=1709472855; bh=e4Ix4PpZ26DIS0uUT/O9HbUNnYKceorp3pWhGM6U0B8=; h=References:In-Reply-To:Date:Subject:To:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=xuKPH4XQnCnEUj9L6G8EJCHRLQg9u7YdzI8GBakNoqU2FHA0XsretIfYgC8+sPgtx LOMS0qwia+E9gky0qysW/EEK+Ay1+yWeqiPYyMJQNriCvE8mQBobQeMcKBHio8EPjA z0qFfZKPC6jrh24JzQkI/ZMJOrnaLaVnuMAXEzac= X-Original-To: cygwin@cygwin.com Delivered-To: cygwin@cygwin.com DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 034083858C56 ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 034083858C56 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1709472837; cv=none; b=bekhC3MV209C6kEbp6uoy18CtPgUXJEe6/964u95GqhBS6RGzfkwutouOz/5qqDxA47PEtKlBxNZZ9iBkrlJfjbaA+wh2L6CsX1rSFC/NP6iOsTbvbuPfLvgaTsCPjYmanxoJMAmvIw0ntOpwinIvWygDIumskOpbJh7+ZXoNC0= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1709472837; c=relaxed/simple; bh=XxG9o7ZriQzn/0ELxXS6OdrmRIojp15rpLoUkeU3Dms=; h=DKIM-Signature:MIME-Version:From:Date:Message-ID:Subject:To; b=xUVhCEn+ko+XPe5xunE4PO1lU/7Wm29/WMZ0lk/K61hK/LO7WoE7jvij4zuFec2L9dRa99QvReWe9bZCvAVWUwZqOPUyBkTDEsFjjSuTAluzc8/9N0K/MI0gdBHGwyPoqeDlLcB16LxOHs4zCHnPuGU11n49BfZGSSJ4k/Ieuz4= ARC-Authentication-Results: i=1; server2.sourceware.org X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709472825; x=1710077625; h=content-transfer-encoding:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=XxG9o7ZriQzn/0ELxXS6OdrmRIojp15rpLoUkeU3Dms=; b=Q1lxgPStHxpqd8uiIEB3SCeYekDBnXQOb9rZT+SnJlU5zxr3KR1A00Fn44pER2vMro dckQ4bpMQz6df+R/ojmLtAcaj/mZ4G6mzc7hHUPf8VxUKuYrq+nW8up9u3tcdGHIUKlV k6Sz7SW50hebv7hpeG2uSkRn3oQPL/Uz9byyz/MGambeNluUoyzSr+VQJn4uRL1QmIf1 tNAjmChX3Fxp89MgFkX4R8jgDonxEldEcUbrFFL0XZJQXeXKEJQlS6DtffSUBLLFhC3I jO2ei2A9jLFp3Vuh3uyuofcvsmBvEOASuWtUMdtuEe2iBaBf8Wzo3SO9Rss5k5cOWkKf kLag== X-Gm-Message-State: AOJu0Yy2X+/vbUxsQD1facQmZr5bvTlDR61ZlBFMD3uSwPRWa/c2Y3R7 4ZWn9v11q5R9P+mCfeNiyOu9fFrb3XNgpm0+3oELtVBjBr6Ui0yQUvbswxjP74nHrEPKCWYFYEI THz/PqDMxYILB6lzJ9lA6hFR4de6A1YY0Clk= X-Google-Smtp-Source: AGHT+IGAcT5SpF3E7OnZLr/tHeXd+qcleRR35WuGlPQ29pNPsoGYTzNFudBUOtCHf4k39of68m5M3SYI8oHcM2wCp8E= X-Received: by 2002:a19:6408:0:b0:513:a6:2f4 with SMTP id y8-20020a196408000000b0051300a602f4mr4571067lfb.13.1709472824702; Sun, 03 Mar 2024 05:33:44 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: Date: Sun, 3 Mar 2024 14:33:33 +0100 Message-ID: Subject: Re: openat(O_DIRECT) supported in Cygwin? To: cygwin@cygwin.com X-Spam-Status: No, score=0.4 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.30 List-Id: General Cygwin discussions and problem reports List-Archive: List-Post: List-Help: List-Subscribe: , From: Martin Wege via Cygwin Reply-To: Martin Wege Content-Type: text/plain; charset="utf-8" Sender: "Cygwin" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by delorie.com id 423DYHLv2637909 On Wed, Feb 28, 2024 at 10:08 AM Corinna Vinschen via Cygwin wrote: > > On Feb 27 17:46, Martin Wege via Cygwin wrote: > > Hello, > > > > Does Cygwin support openat(O_DIRECT)? Which effect does O_DIRECT in > > Cygwin have, and which underlying Windows API is used? > > https://cygwin.com/cgit/newlib-cygwin/tree/winsup/cygwin/fhandler/base.cc#n587 So O_DIRECT will be translated to Win32 FILE_NO_INTERMEDIATE_BUFFERING? Thanks, Martin -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple