10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 package nsk.share.gc;
25
26 /**
27 * An object that occupies approximately given number of bytes in memory.
28 */
29 public class MemoryObject {
30 private static int diff = (int) Memory.getObjectExtraSize();
31 private byte storage[];
32
33 /**
34 * Create an object that occupies given number of bytes.
35 *
36 * @param size size
37 */
38 public MemoryObject(int size) {
39 if (size > diff)
40 storage = new byte[size - diff];
41 }
42
43 public final byte[] getStorage() {
44 return storage;
45 }
46
47 public final int getSize() {
48 return storage.length;
49 }
50 }
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 package nsk.share.gc;
25
26 /**
27 * An object that occupies approximately given number of bytes in memory.
28 */
29 public class MemoryObject {
30 private final static int diff = Memory.getObjectExtraSize() + Memory.getIntSize();
31 private final int size;
32 private final Object storage;
33
34
35 /**
36 * Create an object that occupies given number of bytes.
37 *
38 * @param size size
39 */
40 public MemoryObject(int size) {
41 if (size > diff) {
42 int memory = (size - diff);
43 if (Memory.isValhallaEnabled()) {
44 storage = new Integer[Memory.getArrayLength(memory, Memory.getIntegerArrayElementSize())];
45 } else {
46 storage = new int[Memory.getArrayLength(memory, Memory.getIntSize())];
47 }
48 } else {
49 storage = new int[0];
50 }
51 this.size = size;
52 }
53
54 public final int getSize() {
55 return size;
56 }
57 }
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