From user-return-773-archive-asf-public=cust-asf.ponee.io@arrow.apache.org Fri Nov 13 05:43:24 2020 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mxout1-ec2-va.apache.org (mxout1-ec2-va.apache.org [3.227.148.255]) by mx-eu-01.ponee.io (Postfix) with ESMTPS id BB81C180658 for ; Fri, 13 Nov 2020 06:43:24 +0100 (CET) Received: from mail.apache.org (mailroute1-lw-us.apache.org [207.244.88.153]) by mxout1-ec2-va.apache.org (ASF Mail Server at mxout1-ec2-va.apache.org) with SMTP id 0C57D4A56D for ; Fri, 13 Nov 2020 05:43:24 +0000 (UTC) Received: (qmail 37224 invoked by uid 500); 13 Nov 2020 05:43:22 -0000 Mailing-List: contact user-help@arrow.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@arrow.apache.org Delivered-To: mailing list user@arrow.apache.org Received: (qmail 37210 invoked by uid 99); 13 Nov 2020 05:43:21 -0000 Received: from spamproc1-he-fi.apache.org (HELO spamproc1-he-fi.apache.org) (95.217.134.168) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 13 Nov 2020 05:43:21 +0000 Received: from localhost (localhost [127.0.0.1]) by spamproc1-he-fi.apache.org (ASF Mail Server at spamproc1-he-fi.apache.org) with ESMTP id 59DE3BFD70 for ; Fri, 13 Nov 2020 05:43:20 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamproc1-he-fi.apache.org X-Spam-Flag: NO X-Spam-Score: 0.049 X-Spam-Level: X-Spam-Status: No, score=0.049 tagged_above=-999 required=6.31 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, SPF_PASS=-0.001] autolearn=disabled Authentication-Results: spamproc1-he-fi.apache.org (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mx1-he-de.apache.org ([116.203.227.195]) by localhost (spamproc1-he-fi.apache.org [95.217.134.168]) (amavisd-new, port 10024) with ESMTP id 53P6fjtcyk4A for ; Fri, 13 Nov 2020 05:43:19 +0000 (UTC) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=2a00:1450:4864:20::633; helo=mail-ej1-x633.google.com; envelope-from=comicfans44@gmail.com; receiver= Received: from mail-ej1-x633.google.com (mail-ej1-x633.google.com [IPv6:2a00:1450:4864:20::633]) by mx1-he-de.apache.org (ASF Mail Server at mx1-he-de.apache.org) with ESMTPS id CED327F7B2 for ; Fri, 13 Nov 2020 05:43:19 +0000 (UTC) Received: by mail-ej1-x633.google.com with SMTP id s25so11568047ejy.6 for ; Thu, 12 Nov 2020 21:43:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=ntcewWf3SEtykn1whlHLLJ/DnAL3wZ798100w2Hwg8I=; b=nf/V3SOIHEs8g3SjTJfInYp75zBuL0Qy7hq/G8CCfusv4x7IIzwEnrysG7qJvmIEos 5RKfPWKIW/RN0ga2wIoNH6wtZ1jpezW5diuOnjUZhPmNifPjlID3EW4ehVRBPP07iIGp sbP1UpBBft8E1cuN4g2kT2nAkBOnDHfXAQNuQpnkDCTby6dAp9er7e9wVgsSo6mjfB4a pU/yytCg1A+02v2sYiyMuIChkBYkjKtQO+PHwkjO6ZXLMyzmKEXtq+IIhcGAXNlCkqfy Y5+GR/irL+SlUhU+PmPBCsq44n8Zu6zDjiS7MzkimjmSNxYMHcNyyN/x7eu3PIjWawgq KLyA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=ntcewWf3SEtykn1whlHLLJ/DnAL3wZ798100w2Hwg8I=; b=ArN/ytPXGvgO+bfyunrGLp+HP/JTDMw0npnxMzAfvQx+yOzruLRBjf6Gy9nlgwFQOF WnGP8Us/uYlRxzJTw9UGoMgycTBNDnQWJu41B+/9WIc24X5d0IDRANkcR5wjFo61qqIo ufZTks54D7NqVjfNpnKFwKzE8bLnfXODEBDry8WSh1mRt1VDlAJsBB0JmkuffQ4eQnK+ 4MNJ/O76W9sYQC5l2kHOA+0MPdmywhFnFKQMu0w5HuE2uObNV7JCxHn8tSUUNMloA8K0 0A13hzhnQA3QrUPOWq1BpParg37kN9cXRBuXY2/YvdvyCfSfDPxP/TfQCxeAdi6qE6VA 9PHQ== X-Gm-Message-State: AOAM531tS3nXgHKx7zXF5JmGPVMtyTlI/kfGU6jsXCrjkDAr17oU7Z5f 5eXkdUMJrG1irgCvW11UgyMmZA5phGt1QTo9opive7XjFJOKrhRd X-Google-Smtp-Source: ABdhPJwAVAmEYZI8gQhijWADDH0bSf1DBzCy5mXVoTrikXUnFqAdmSRqVx/IPiK86EgZtJOVBUzqkE63hroU2D3bPRM= X-Received: by 2002:a17:906:46d5:: with SMTP id k21mr383374ejs.495.1605246199054; Thu, 12 Nov 2020 21:43:19 -0800 (PST) MIME-Version: 1.0 From: comic fans Date: Fri, 13 Nov 2020 13:43:08 +0800 Message-ID: Subject: does rust API support memory mapped read/write ? To: user@arrow.apache.org Content-Type: text/plain; charset="UTF-8" Hello everyone , I'd like to use rust to read/write feather format files (by memory mapped file support) ,but rust API only accept Reader as input (arrow::ipc::reader::FileReader) , and I didn't find any memory map api/crate usage in arrow , does that mean currently rust native API didn't support memory mapped read/write ? (I can do this by arrow C++ API, but I'd like to do this through native rust API ) .