author | vkempik |
Tue, 24 Sep 2019 14:54:57 +0300 | |
changeset 58397 | 2d40e6a7ce8e |
parent 48460 | bdbbf56c302e |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008, 2019, 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. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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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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package sun.nio.fs; |
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|
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import java.nio.file.*; |
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import java.io.IOException; |
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import java.util.*; |
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import static sun.nio.fs.LinuxNativeDispatcher.*; |
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|
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/** |
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* Linux implementation of FileSystem |
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*/ |
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class LinuxFileSystem extends UnixFileSystem { |
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LinuxFileSystem(UnixFileSystemProvider provider, String dir) { |
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super(provider, dir); |
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} |
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@Override |
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public WatchService newWatchService() |
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throws IOException |
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{ |
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// assume 2.6.13 or newer |
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return new LinuxWatchService(this); |
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} |
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// lazy initialization of the list of supported attribute views |
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private static class SupportedFileFileAttributeViewsHolder { |
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static final Set<String> supportedFileAttributeViews = |
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supportedFileAttributeViews(); |
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private static Set<String> supportedFileAttributeViews() { |
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Set<String> result = new HashSet<>(); |
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result.addAll(standardFileAttributeViews()); |
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// additional Linux-specific views |
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result.add("dos"); |
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result.add("user"); |
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return Collections.unmodifiableSet(result); |
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} |
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} |
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@Override |
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public Set<String> supportedFileAttributeViews() { |
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return SupportedFileFileAttributeViewsHolder.supportedFileAttributeViews; |
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} |
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@Override |
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void copyNonPosixAttributes(int ofd, int nfd) { |
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LinuxUserDefinedFileAttributeView.copyExtendedAttributes(ofd, nfd); |
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} |
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/** |
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* Returns object to iterate over the mount entries in the given fstab file. |
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*/ |
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List<UnixMountEntry> getMountEntries(String fstab) { |
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ArrayList<UnixMountEntry> entries = new ArrayList<>(); |
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try { |
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long fp = setmntent(Util.toBytes(fstab), Util.toBytes("r")); |
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int maxLineSize = 1024; |
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try { |
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for (;;) { |
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int lineSize = getlinelen(fp); |
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if (lineSize == -1) |
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break; |
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if (lineSize > maxLineSize) |
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maxLineSize = lineSize; |
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} |
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} catch (UnixException x) { |
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// nothing we need to do |
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} finally { |
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rewind(fp); |
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} |
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try { |
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for (;;) { |
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UnixMountEntry entry = new UnixMountEntry(); |
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// count in NUL character at the end |
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int res = getmntent(fp, entry, maxLineSize + 1); |
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if (res < 0) |
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break; |
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entries.add(entry); |
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} |
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} finally { |
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endmntent(fp); |
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} |
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|
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} catch (UnixException x) { |
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// nothing we can do |
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} |
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return entries; |
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} |
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/** |
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* Returns object to iterate over the mount entries in /etc/mtab |
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*/ |
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@Override |
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List<UnixMountEntry> getMountEntries() { |
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return getMountEntries("/etc/mtab"); |
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} |
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@Override |
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FileStore getFileStore(UnixMountEntry entry) throws IOException { |
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return new LinuxFileStore(this, entry); |
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} |
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} |