1/*
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#include "monitor_pool.h"
22
23namespace art {
24
25inline uint32_t LockWord::ThinLockOwner() const {
26  DCHECK_EQ(GetState(), kThinLocked);
27  return (value_ >> kThinLockOwnerShift) & kThinLockOwnerMask;
28}
29
30inline uint32_t LockWord::ThinLockCount() const {
31  DCHECK_EQ(GetState(), kThinLocked);
32  return (value_ >> kThinLockCountShift) & kThinLockCountMask;
33}
34
35inline Monitor* LockWord::FatLockMonitor() const {
36  DCHECK_EQ(GetState(), kFatLocked);
37  MonitorId mon_id = static_cast<MonitorId>(value_ & ~(kStateMask << kStateShift));
38  return MonitorPool::MonitorFromMonitorId(mon_id);
39}
40
41inline size_t LockWord::ForwardingAddress() const {
42  DCHECK_EQ(GetState(), kForwardingAddress);
43  return static_cast<size_t>(value_ << kStateSize);
44}
45
46inline LockWord::LockWord() : value_(0) {
47  DCHECK_EQ(GetState(), kUnlocked);
48}
49
50inline LockWord::LockWord(Monitor* mon)
51    : value_(mon->GetMonitorId() | (kStateFat << kStateShift)) {
52  DCHECK_EQ(FatLockMonitor(), mon);
53}
54
55inline int32_t LockWord::GetHashCode() const {
56  DCHECK_EQ(GetState(), kHashCode);
57  return (value_ >> kHashShift) & kHashMask;
58}
59
60}  // namespace art
61
62#endif  // ART_RUNTIME_LOCK_WORD_INL_H_
63