Mercurial > hg > truffle
annotate src/share/vm/runtime/objectMonitor.inline.hpp @ 12355:cefad50507d8
Merge with hs25-b53
| author | Gilles Duboscq <duboscq@ssw.jku.at> |
|---|---|
| date | Fri, 11 Oct 2013 10:38:03 +0200 |
| parents | 22ba8c8ce6a6 |
| children |
| rev | line source |
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| 0 | 1 /* |
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2 * Copyright (c) 1998, 2013, 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 | |
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8004902: correctness fixes motivated by contended locking work (6607129)
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104 // Do NOT set _count = 0. There is a race such that _count could |
|
22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
parents:
1972
diff
changeset
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105 // be set while inflating prior to setting _owner |
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22ba8c8ce6a6
8004902: correctness fixes motivated by contended locking work (6607129)
dcubed
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diff
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106 // Just use Atomic::inc/dec and assert 0 when monitor put on free list |
| 0 | 107 inline void ObjectMonitor::set_owner(void* owner) { |
| 108 _owner = owner; | |
| 109 _recursions = 0; | |
| 110 } | |
| 111 | |
| 1972 | 112 |
| 113 #endif // SHARE_VM_RUNTIME_OBJECTMONITOR_INLINE_HPP |