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annotate src/share/vm/runtime/objectMonitor.inline.hpp @ 5274:e72dd6533eb9
documented importance of nmethod::_graal_compiled_method wrt code unloading and GC
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 23 Apr 2012 15:42:30 +0200 |
parents | f95d63e2154a |
children | 22ba8c8ce6a6 |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1998, 2010, 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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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_RUNTIME_OBJECTMONITOR_INLINE_HPP |
26 #define SHARE_VM_RUNTIME_OBJECTMONITOR_INLINE_HPP | |
27 | |
0 | 28 inline intptr_t ObjectMonitor::is_entered(TRAPS) const { |
29 if (THREAD == _owner || THREAD->is_lock_owned((address) _owner)) { | |
30 return 1; | |
31 } | |
32 return 0; | |
33 } | |
34 | |
35 inline markOop ObjectMonitor::header() const { | |
36 return _header; | |
37 } | |
38 | |
39 inline void ObjectMonitor::set_header(markOop hdr) { | |
40 _header = hdr; | |
41 } | |
42 | |
43 inline intptr_t ObjectMonitor::count() const { | |
44 return _count; | |
45 } | |
46 | |
47 inline void ObjectMonitor::set_count(intptr_t count) { | |
48 _count= count; | |
49 } | |
50 | |
51 inline intptr_t ObjectMonitor::waiters() const { | |
52 return _waiters; | |
53 } | |
54 | |
55 inline void* ObjectMonitor::owner() const { | |
56 return _owner; | |
57 } | |
58 | |
59 inline void ObjectMonitor::clear() { | |
60 assert(_header, "Fatal logic error in ObjectMonitor header!"); | |
61 assert(_count == 0, "Fatal logic error in ObjectMonitor count!"); | |
62 assert(_waiters == 0, "Fatal logic error in ObjectMonitor waiters!"); | |
63 assert(_recursions == 0, "Fatal logic error in ObjectMonitor recursions!"); | |
64 assert(_object, "Fatal logic error in ObjectMonitor object!"); | |
65 assert(_owner == 0, "Fatal logic error in ObjectMonitor owner!"); | |
66 | |
67 _header = NULL; | |
68 _object = NULL; | |
69 } | |
70 | |
71 | |
72 inline void* ObjectMonitor::object() const { | |
73 return _object; | |
74 } | |
75 | |
76 inline void* ObjectMonitor::object_addr() { | |
77 return (void *)(&_object); | |
78 } | |
79 | |
80 inline void ObjectMonitor::set_object(void* obj) { | |
81 _object = obj; | |
82 } | |
83 | |
84 inline bool ObjectMonitor::check(TRAPS) { | |
85 if (THREAD != _owner) { | |
86 if (THREAD->is_lock_owned((address) _owner)) { | |
87 _owner = THREAD; // regain ownership of inflated monitor | |
88 OwnerIsThread = 1 ; | |
89 assert (_recursions == 0, "invariant") ; | |
90 } else { | |
91 check_slow(THREAD); | |
92 return false; | |
93 } | |
94 } | |
95 return true; | |
96 } | |
97 | |
98 | |
99 // return number of threads contending for this monitor | |
100 inline intptr_t ObjectMonitor::contentions() const { | |
101 return _count; | |
102 } | |
103 | |
104 inline void ObjectMonitor::set_owner(void* owner) { | |
105 _owner = owner; | |
106 _recursions = 0; | |
107 _count = 0; | |
108 } | |
109 | |
1972 | 110 |
111 #endif // SHARE_VM_RUNTIME_OBJECTMONITOR_INLINE_HPP |