Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/livejvm/JNIHandleAccessor.java @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
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| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | a61af66fc99e |
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| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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2 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 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 * | |
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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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20 * or visit www.oracle.com if you need additional information or have any |
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6941466: Oracle rebranding changes for Hotspot repositories
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.livejvm; | |
| 26 | |
| 27 import sun.jvm.hotspot.debugger.*; | |
| 28 import sun.jvm.hotspot.oops.*; | |
| 29 import sun.jvm.hotspot.utilities.*; | |
| 30 | |
| 31 class JNIHandleAccessor { | |
| 32 private Address addr; | |
| 33 private ObjectHeap heap; | |
| 34 | |
| 35 JNIHandleAccessor(Address addr, ObjectHeap heap) { | |
| 36 this.addr = addr; | |
| 37 this.heap = heap; | |
| 38 } | |
| 39 | |
| 40 Oop getValue() { | |
| 41 // Accessing the contents of the JNIHandle is a double dereference | |
| 42 Address handle = addr.getAddressAt(0); | |
| 43 if (handle == null) return null; | |
| 44 return heap.newOop(handle.getOopHandleAt(0)); | |
| 45 } | |
| 46 | |
| 47 void setValue(Oop value) { | |
| 48 Address handle = addr.getAddressAt(0); | |
| 49 if (Assert.ASSERTS_ENABLED) { | |
| 50 Assert.that(handle != null, "Must have valid global JNI handle for setting"); | |
| 51 } | |
| 52 handle.setOopHandleAt(0, value.getHandle()); | |
| 53 } | |
| 54 } |