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      1 /*
      2  * Copyright (c) 2000, 2001, 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 /*
     27  */
     28 
     29 package sun.nio.ch;                                     // Formerly in sun.misc
     30 
     31 
     32 // ## In the fullness of time, this class will be eliminated
     33 
     34 class AllocatedNativeObject                             // package-private
     35     extends NativeObject
     36 {
     37 
     38     /**
     39      * Allocates a memory area of at least <tt>size</tt> bytes outside of the
     40      * Java heap and creates a native object for that area.
     41      *
     42      * @param  size
     43      *         Number of bytes to allocate
     44      *
     45      * @param  pageAligned
     46      *         If <tt>true</tt> then the area will be aligned on a hardware
     47      *         page boundary
     48      *
     49      * @throws OutOfMemoryError
     50      *         If the request cannot be satisfied
     51      */
     52     AllocatedNativeObject(int size, boolean pageAligned) {
     53         super(size, pageAligned);
     54     }
     55 
     56     /**
     57      * Frees the native memory area associated with this object.
     58      */
     59     synchronized void free() {
     60         if (allocationAddress != 0) {
     61             unsafe.freeMemory(allocationAddress);
     62             allocationAddress = 0;
     63         }
     64     }
     65 
     66 }
     67