8187443: Forest Consolidation: Move files to unified layout

Reviewed-by: darcy, ihse

src/java.base/windows/classes/sun/nio/ch/FileKey.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.nio.ch;
+
+import java.io.FileDescriptor;
+import java.io.IOException;
+
+/*
+ * Represents a key to a specific file on Windows
+ */
+public class FileKey {
+
+    private long dwVolumeSerialNumber;
+    private long nFileIndexHigh;
+    private long nFileIndexLow;
+
+    private FileKey() { }
+
+    public static FileKey create(FileDescriptor fd) throws IOException {
+        FileKey fk = new FileKey();
+        fk.init(fd);
+        return fk;
+    }
+
+    public int hashCode() {
+        return (int)(dwVolumeSerialNumber ^ (dwVolumeSerialNumber >>> 32)) +
+               (int)(nFileIndexHigh ^ (nFileIndexHigh >>> 32)) +
+               (int)(nFileIndexLow ^ (nFileIndexHigh >>> 32));
+    }
+
+    public boolean equals(Object obj) {
+        if (obj == this)
+            return true;
+        if (!(obj instanceof FileKey))
+            return false;
+        FileKey other = (FileKey)obj;
+        if ((this.dwVolumeSerialNumber != other.dwVolumeSerialNumber) ||
+            (this.nFileIndexHigh != other.nFileIndexHigh) ||
+            (this.nFileIndexLow != other.nFileIndexLow)) {
+            return false;
+        }
+        return true;
+    }
+
+    private native void init(FileDescriptor fd) throws IOException;
+    private static native void initIDs();
+
+    static {
+        IOUtil.load();
+        initIDs();
+    }
+}