68 lines
2.2 KiB
Java
68 lines
2.2 KiB
Java
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/*
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* Copyright (c) 2008, 2009, 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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* Container for device/inode to uniquely identify file.
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*/
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class UnixFileKey {
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private final long st_dev;
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private final long st_ino;
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UnixFileKey(long st_dev, long st_ino) {
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this.st_dev = st_dev;
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this.st_ino = st_ino;
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}
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@Override
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public int hashCode() {
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return (int)(st_dev ^ (st_dev >>> 32)) +
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(int)(st_ino ^ (st_ino >>> 32));
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}
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@Override
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public boolean equals(Object obj) {
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if (obj == this)
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return true;
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if (!(obj instanceof UnixFileKey))
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return false;
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UnixFileKey other = (UnixFileKey)obj;
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return (this.st_dev == other.st_dev) && (this.st_ino == other.st_ino);
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}
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@Override
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public String toString() {
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StringBuilder sb = new StringBuilder();
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sb.append("(dev=")
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.append(Long.toHexString(st_dev))
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.append(",ino=")
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.append(st_ino)
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.append(')');
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return sb.toString();
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}
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}
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