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comparison src/share/vm/runtime/objectMonitor.inline.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 1998-2005 Sun Microsystems, Inc. All Rights Reserved.
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 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 inline intptr_t ObjectMonitor::is_entered(TRAPS) const {
26 if (THREAD == _owner || THREAD->is_lock_owned((address) _owner)) {
27 return 1;
28 }
29 return 0;
30 }
31
32 inline markOop ObjectMonitor::header() const {
33 return _header;
34 }
35
36 inline void ObjectMonitor::set_header(markOop hdr) {
37 _header = hdr;
38 }
39
40 inline intptr_t ObjectMonitor::count() const {
41 return _count;
42 }
43
44 inline void ObjectMonitor::set_count(intptr_t count) {
45 _count= count;
46 }
47
48 inline intptr_t ObjectMonitor::waiters() const {
49 return _waiters;
50 }
51
52 inline void* ObjectMonitor::owner() const {
53 return _owner;
54 }
55
56 inline void ObjectMonitor::clear() {
57 assert(_header, "Fatal logic error in ObjectMonitor header!");
58 assert(_count == 0, "Fatal logic error in ObjectMonitor count!");
59 assert(_waiters == 0, "Fatal logic error in ObjectMonitor waiters!");
60 assert(_recursions == 0, "Fatal logic error in ObjectMonitor recursions!");
61 assert(_object, "Fatal logic error in ObjectMonitor object!");
62 assert(_owner == 0, "Fatal logic error in ObjectMonitor owner!");
63
64 _header = NULL;
65 _object = NULL;
66 }
67
68
69 inline void* ObjectMonitor::object() const {
70 return _object;
71 }
72
73 inline void* ObjectMonitor::object_addr() {
74 return (void *)(&_object);
75 }
76
77 inline void ObjectMonitor::set_object(void* obj) {
78 _object = obj;
79 }
80
81 inline bool ObjectMonitor::check(TRAPS) {
82 if (THREAD != _owner) {
83 if (THREAD->is_lock_owned((address) _owner)) {
84 _owner = THREAD; // regain ownership of inflated monitor
85 OwnerIsThread = 1 ;
86 assert (_recursions == 0, "invariant") ;
87 } else {
88 check_slow(THREAD);
89 return false;
90 }
91 }
92 return true;
93 }
94
95
96 // return number of threads contending for this monitor
97 inline intptr_t ObjectMonitor::contentions() const {
98 return _count;
99 }
100
101 inline void ObjectMonitor::set_owner(void* owner) {
102 _owner = owner;
103 _recursions = 0;
104 _count = 0;
105 }
106
107
108 // here are the platform-dependent bodies:
109
110 # include "incls/_objectMonitor_pd.inline.hpp.incl"