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 /*
25 * @test
26 * @summary Verifies behaviour of Unsafe.copyMemory
27 * @library /test/lib
28 * @modules java.base/jdk.internal.misc
29 * java.management
30 * @run main CopyMemory
31 */
32
33 import jdk.test.lib.unsafe.UnsafeHelper;
34 import jdk.internal.misc.Unsafe;
35 import static jdk.test.lib.Asserts.*;
36
37 public class CopyMemory {
38 final static int LENGTH = 8;
39 public static void main(String args[]) throws Exception {
40 Unsafe unsafe = UnsafeHelper.getUnsafe();
41 long src = unsafe.allocateMemory(LENGTH);
42 long dst = unsafe.allocateMemory(LENGTH);
43 assertNotEquals(src, 0L);
44 assertNotEquals(dst, 0L);
45
46 // call copyMemory() with different lengths and verify the contents of
47 // the destination array
48 for (int i = 0; i < LENGTH; i++) {
49 unsafe.putByte(src + i, (byte)i);
50 unsafe.copyMemory(src, dst, i);
51 for (int j = 0; j < i; j++) {
52 assertEquals(unsafe.getByte(src + j), unsafe.getByte(src + j));
53 }
54 }
55 unsafe.freeMemory(src);
56 unsafe.freeMemory(dst);
57 }
58 }
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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 /*
25 * @test
26 * @summary Verifies behaviour of Unsafe.copyMemory
27 * @library /test/lib
28 * @modules java.base/jdk.internal.misc
29 * java.management
30 * @run main CopyMemory
31 */
32
33 import jdk.internal.misc.Unsafe;
34 import static jdk.test.lib.Asserts.*;
35
36 public class CopyMemory {
37 final static int LENGTH = 8;
38 public static void main(String args[]) throws Exception {
39 Unsafe unsafe = Unsafe.getUnsafe();
40 long src = unsafe.allocateMemory(LENGTH);
41 long dst = unsafe.allocateMemory(LENGTH);
42 assertNotEquals(src, 0L);
43 assertNotEquals(dst, 0L);
44
45 // call copyMemory() with different lengths and verify the contents of
46 // the destination array
47 for (int i = 0; i < LENGTH; i++) {
48 unsafe.putByte(src + i, (byte)i);
49 unsafe.copyMemory(src, dst, i);
50 for (int j = 0; j < i; j++) {
51 assertEquals(unsafe.getByte(src + j), unsafe.getByte(src + j));
52 }
53 }
54 unsafe.freeMemory(src);
55 unsafe.freeMemory(dst);
56 }
57 }
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