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1 /* |
1 /* |
2 * Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved. |
2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * |
4 * |
5 * This code is free software; you can redistribute it and/or modify it |
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 |
6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. |
7 * published by the Free Software Foundation. |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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 |
20 * or visit www.oracle.com if you need additional information or have any |
21 * questions. |
21 * questions. |
22 * |
22 * |
23 */ |
23 */ |
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24 |
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25 #ifndef SHARE_VM_RUNTIME_BASICLOCK_HPP |
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26 #define SHARE_VM_RUNTIME_BASICLOCK_HPP |
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27 |
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28 #include "oops/markOop.hpp" |
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29 #include "runtime/handles.hpp" |
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30 #include "utilities/top.hpp" |
24 |
31 |
25 class BasicLock VALUE_OBJ_CLASS_SPEC { |
32 class BasicLock VALUE_OBJ_CLASS_SPEC { |
26 friend class VMStructs; |
33 friend class VMStructs; |
27 private: |
34 private: |
28 volatile markOop _displaced_header; |
35 volatile markOop _displaced_header; |
68 |
75 |
69 static int obj_offset_in_bytes() { return offset_of(BasicObjectLock, _obj); } |
76 static int obj_offset_in_bytes() { return offset_of(BasicObjectLock, _obj); } |
70 static int lock_offset_in_bytes() { return offset_of(BasicObjectLock, _lock); } |
77 static int lock_offset_in_bytes() { return offset_of(BasicObjectLock, _lock); } |
71 }; |
78 }; |
72 |
79 |
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80 |
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81 #endif // SHARE_VM_RUNTIME_BASICLOCK_HPP |