1e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera/* 2e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * Copyright (c) 2008, 2009, Oracle and/or its affiliates. All rights reserved. 3e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * 5e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * This code is free software; you can redistribute it and/or modify it 6e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * under the terms of the GNU General Public License version 2 only, as 7e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * published by the Free Software Foundation. Oracle designates this 8e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * particular file as subject to the "Classpath" exception as provided 9e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * by Oracle in the LICENSE file that accompanied this code. 10e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * 11e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * This code is distributed in the hope that it will be useful, but WITHOUT 12e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * version 2 for more details (a copy is included in the LICENSE file that 15e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * accompanied this code). 16e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * 17e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * You should have received a copy of the GNU General Public License version 18e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * 2 along with this work; if not, write to the Free Software Foundation, 19e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * 21e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * or visit www.oracle.com if you need additional information or have any 23e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * questions. 24e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera */ 25e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 26e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmerapackage sun.nio.fs; 27e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 28e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera/** 29e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera * Container for device/inode to uniquely identify file. 30e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera */ 31e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 32e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmeraclass UnixFileKey { 33e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera private final long st_dev; 34e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera private final long st_ino; 35e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 36e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera UnixFileKey(long st_dev, long st_ino) { 37e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera this.st_dev = st_dev; 38e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera this.st_ino = st_ino; 39e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera } 40e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 41e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera @Override 42e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera public int hashCode() { 43e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera return (int)(st_dev ^ (st_dev >>> 32)) + 44e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera (int)(st_ino ^ (st_ino >>> 32)); 45e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera } 46e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 47e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera @Override 48e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera public boolean equals(Object obj) { 49e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera if (obj == this) 50e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera return true; 51e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera if (!(obj instanceof UnixFileKey)) 52e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera return false; 53e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera UnixFileKey other = (UnixFileKey)obj; 54e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera return (this.st_dev == other.st_dev) && (this.st_ino == other.st_ino); 55e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera } 56e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera 57e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera @Override 58e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera public String toString() { 59e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera StringBuilder sb = new StringBuilder(); 60e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera sb.append("(dev=") 61e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera .append(Long.toHexString(st_dev)) 62e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera .append(",ino=") 63e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera .append(st_ino) 64e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera .append(')'); 65e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera return sb.toString(); 66e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera } 67e6bac4bf9c85c2454ce22c91da6c654552c268e0Shubham Ajmera} 68