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Ian Rogersd9c4fc92013-10-01 19:45:43 -07001/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ART_RUNTIME_LOCK_WORD_INL_H_
18#define ART_RUNTIME_LOCK_WORD_INL_H_
19
20#include "lock_word.h"
21
22namespace art {
23
24inline uint32_t LockWord::ThinLockOwner() const {
25 DCHECK_EQ(GetState(), kThinLocked);
26 return (value_ >> kThinLockOwnerShift) & kThinLockOwnerMask;
27}
28
29inline uint32_t LockWord::ThinLockCount() const {
30 DCHECK_EQ(GetState(), kThinLocked);
31 return (value_ >> kThinLockCountShift) & kThinLockCountMask;
32}
33
34inline Monitor* LockWord::FatLockMonitor() const {
35 DCHECK_EQ(GetState(), kFatLocked);
Mathieu Chartierad2541a2013-10-25 10:05:23 -070036 return reinterpret_cast<Monitor*>(value_ << kStateSize);
Ian Rogersd9c4fc92013-10-01 19:45:43 -070037}
38
Mathieu Chartier590fee92013-09-13 13:46:47 -070039inline size_t LockWord::ForwardingAddress() const {
40 DCHECK_EQ(GetState(), kForwardingAddress);
41 return static_cast<size_t>(value_ << kStateSize);
42}
43
Ian Rogersd9c4fc92013-10-01 19:45:43 -070044inline LockWord::LockWord() : value_(0) {
45 DCHECK_EQ(GetState(), kUnlocked);
46}
47
48inline LockWord::LockWord(Monitor* mon)
Mathieu Chartierad2541a2013-10-25 10:05:23 -070049 : value_((reinterpret_cast<uint32_t>(mon) >> kStateSize) | (kStateFat << kStateShift)) {
Ian Rogersd9c4fc92013-10-01 19:45:43 -070050 DCHECK_EQ(FatLockMonitor(), mon);
51}
52
Mathieu Chartier4e6a31e2013-10-31 10:35:05 -070053inline int32_t LockWord::GetHashCode() const {
Mathieu Chartierad2541a2013-10-25 10:05:23 -070054 DCHECK_EQ(GetState(), kHashCode);
55 return (value_ >> kHashShift) & kHashMask;
56}
57
Ian Rogersd9c4fc92013-10-01 19:45:43 -070058} // namespace art
59
60#endif // ART_RUNTIME_LOCK_WORD_INL_H_