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src/java.desktop/share/classes/sun/java2d/marlin/OffHeapArray.java

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   1 /*
   2  * Copyright (c) 2007, 2017, 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.java2d.marlin;
  27 
  28 import static sun.java2d.marlin.MarlinConst.LOG_UNSAFE_MALLOC;
  29 import jdk.internal.misc.Unsafe;
  30 import jdk.internal.ref.CleanerFactory;
  31 
  32 /**
  33  *
  34  * @author bourgesl
  35  */
  36 final class OffHeapArray  {
  37 
  38     // unsafe reference
  39     static final Unsafe UNSAFE;
  40     // size of int / float
  41     static final int SIZE_INT;
  42 
  43     static {
  44         UNSAFE   = Unsafe.getUnsafe();
  45         SIZE_INT = Unsafe.ARRAY_INT_INDEX_SCALE;
  46     }
  47 
  48     /* members */
  49     long address;
  50     long length;
  51     int  used;
  52 
  53     OffHeapArray(final Object parent, final long len) {
  54         // note: may throw OOME:


   1 /*
   2  * Copyright (c) 2007, 2018, 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.java2d.marlin;
  27 
  28 import static sun.java2d.marlin.MarlinConst.LOG_UNSAFE_MALLOC;
  29 import jdk.internal.misc.Unsafe;
  30 import jdk.internal.ref.CleanerFactory;
  31 
  32 /**
  33  *

  34  */
  35 final class OffHeapArray  {
  36 
  37     // unsafe reference
  38     static final Unsafe UNSAFE;
  39     // size of int / float
  40     static final int SIZE_INT;
  41 
  42     static {
  43         UNSAFE   = Unsafe.getUnsafe();
  44         SIZE_INT = Unsafe.ARRAY_INT_INDEX_SCALE;
  45     }
  46 
  47     /* members */
  48     long address;
  49     long length;
  50     int  used;
  51 
  52     OffHeapArray(final Object parent, final long len) {
  53         // note: may throw OOME:


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