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 package org.graalvm.compiler.replacements;
26
27 import java.lang.reflect.Field;
28
29 import sun.misc.Unsafe;
30
31 /**
32 * Package private access to the {@link Unsafe} capability.
33 */
34 class UnsafeAccess {
35
36 static final Unsafe UNSAFE = initUnsafe();
37
38 private static Unsafe initUnsafe() {
39 try {
40 // Fast path when we are trusted.
41 return Unsafe.getUnsafe();
42 } catch (SecurityException se) {
43 // Slow path when we are not trusted.
44 try {
45 Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
46 theUnsafe.setAccessible(true);
47 return (Unsafe) theUnsafe.get(Unsafe.class);
48 } catch (Exception e) {
49 throw new RuntimeException("exception while trying to get Unsafe", e);
50 }
51 }
52 }
53 }
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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 package org.graalvm.compiler.replacements;
26
27 import java.lang.reflect.Field;
28
29 import sun.misc.Unsafe;
30
31 /**
32 * Package private access to the {@link Unsafe} capability.
33 */
34 class UnsafeAccess {
35
36 private static final Unsafe THE_UNSAFE = initUnsafe();
37
38 static final UnsafeAccess UNSAFE = new UnsafeAccess();
39
40 private static Unsafe initUnsafe() {
41 try {
42 // Fast path when we are trusted.
43 return Unsafe.getUnsafe();
44 } catch (SecurityException se) {
45 // Slow path when we are not trusted.
46 try {
47 Field theUnsafe = Unsafe.class.getDeclaredField("theUnsafe");
48 theUnsafe.setAccessible(true);
49 return (Unsafe) theUnsafe.get(Unsafe.class);
50 } catch (Exception e) {
51 throw new RuntimeException("exception while trying to get Unsafe", e);
52 }
53 }
54 }
55
56 public char getChar(Object target, long l) {
57 return THE_UNSAFE.getChar(target, l);
58 }
59
60 public byte getByte(Object target, long l) {
61 return THE_UNSAFE.getByte(target, l);
62 }
63 }
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