73 lines
2.8 KiB
Java
73 lines
2.8 KiB
Java
/*
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* Copyright (c) 2014, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/* @test
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* @bug 8054029 8313368
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* @requires (os.family == "linux")
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* @summary FileChannel.size() should be equal to RandomAccessFile.size() and > 0 for block devs on Linux
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* @library /test/lib
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*/
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import java.io.RandomAccessFile;
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import java.nio.file.Path;
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import java.nio.channels.FileChannel;
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import java.nio.file.AccessDeniedException;
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import java.nio.file.NoSuchFileException;
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import java.util.List;
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import static java.nio.file.StandardOpenOption.*;
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import jtreg.SkippedException;
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public class BlockDeviceSize {
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private static final List<String> BLK_FNAMES = List.of("/dev/sda1", "/dev/nvme0n1", "/dev/xvda1") ;
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public static void main(String[] args) throws Throwable {
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for (String blkFname: BLK_FNAMES) {
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Path blkPath = Path.of(blkFname);
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try (FileChannel ch = FileChannel.open(blkPath, READ);
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RandomAccessFile file = new RandomAccessFile(blkFname, "r")) {
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long size1 = ch.size();
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long size2 = file.length();
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if (size1 != size2) {
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throw new RuntimeException("size differs when retrieved" +
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" in different ways: " + size1 + " != " + size2);
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}
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if (size1 <= 0) {
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throw new RuntimeException("size() for a block device size returns zero or a negative value");
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}
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System.out.println("OK");
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} catch (NoSuchFileException nsfe) {
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System.err.println("File " + blkFname + " not found." +
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" Skipping test");
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} catch (AccessDeniedException ade) {
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throw new SkippedException("Access to " + blkFname + " is denied."
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+ " Run test as root.", ade);
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}
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}
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}
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}
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