1/* 2 * Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package sun.nio.fs; 27 28import java.nio.file.*; 29import java.io.IOException; 30import java.util.*; 31import java.security.AccessController; 32import sun.security.action.GetPropertyAction; 33 34/** 35 * Bsd implementation of FileSystem 36 */ 37 38class BsdFileSystem extends UnixFileSystem { 39 40 BsdFileSystem(UnixFileSystemProvider provider, String dir) { 41 super(provider, dir); 42 } 43 44 @Override 45 public WatchService newWatchService() 46 throws IOException 47 { 48 // use polling implementation until we implement a BSD/kqueue one 49 return new PollingWatchService(); 50 } 51 52 // lazy initialization of the list of supported attribute views 53 private static class SupportedFileFileAttributeViewsHolder { 54 static final Set<String> supportedFileAttributeViews = 55 supportedFileAttributeViews(); 56 private static Set<String> supportedFileAttributeViews() { 57 Set<String> result = new HashSet<String>(); 58 result.addAll(standardFileAttributeViews()); 59 return Collections.unmodifiableSet(result); 60 } 61 } 62 63 @Override 64 public Set<String> supportedFileAttributeViews() { 65 return SupportedFileFileAttributeViewsHolder.supportedFileAttributeViews; 66 } 67 68 @Override 69 void copyNonPosixAttributes(int ofd, int nfd) { 70 } 71 72 /** 73 * Returns object to iterate over mount entries 74 */ 75 @Override 76 Iterable<UnixMountEntry> getMountEntries() { 77 ArrayList<UnixMountEntry> entries = new ArrayList<UnixMountEntry>(); 78 try { 79 long iter = BsdNativeDispatcher.getfsstat(); 80 try { 81 for (;;) { 82 UnixMountEntry entry = new UnixMountEntry(); 83 int res = BsdNativeDispatcher.fsstatEntry(iter, entry); 84 if (res < 0) 85 break; 86 entries.add(entry); 87 } 88 } finally { 89 BsdNativeDispatcher.endfsstat(iter); 90 } 91 92 } catch (UnixException x) { 93 // nothing we can do 94 } 95 return entries; 96 } 97 98 99 100 @Override 101 FileStore getFileStore(UnixMountEntry entry) throws IOException { 102 return new BsdFileStore(this, entry); 103 } 104} 105