1 /* 2 * Copyright (c) 2008, 2013, 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 26 package sun.nio.fs; 27 28 /** 29 * Represents an entry in the mount table. 30 */ 31 32 class UnixMountEntry { 33 private byte[] name; // file system name 34 private byte[] dir; // directory (mount point) 35 private byte[] fstype; // ufs, nfs, ... 36 private byte[] opts; // mount options 37 private long dev; // device ID 38 39 private volatile String fstypeAsString; 40 private volatile String optionsAsString; 41 UnixMountEntry()42 UnixMountEntry() { 43 } 44 name()45 String name() { 46 return Util.toString(name); 47 } 48 fstype()49 String fstype() { 50 if (fstypeAsString == null) 51 fstypeAsString = Util.toString(fstype); 52 return fstypeAsString; 53 } 54 dir()55 byte[] dir() { 56 return dir; 57 } 58 dev()59 long dev() { 60 return dev; 61 } 62 63 /** 64 * Tells whether the mount entry has the given option. 65 */ hasOption(String requested)66 boolean hasOption(String requested) { 67 if (optionsAsString == null) 68 optionsAsString = Util.toString(opts); 69 for (String opt: Util.split(optionsAsString, ',')) { 70 if (opt.equals(requested)) 71 return true; 72 } 73 return false; 74 } 75 76 // generic option isIgnored()77 boolean isIgnored() { 78 return hasOption("ignore"); 79 } 80 81 // generic option isReadOnly()82 boolean isReadOnly() { 83 return hasOption("ro"); 84 } 85 } 86