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
23 namespace art {
24
ThinLockOwner()25 inline uint32_t LockWord::ThinLockOwner() const {
26 DCHECK_EQ(GetState(), kThinLocked);
27 return (value_ >> kThinLockOwnerShift) & kThinLockOwnerMask;
28 }
29
ThinLockCount()30 inline uint32_t LockWord::ThinLockCount() const {
31 DCHECK_EQ(GetState(), kThinLocked);
32 return (value_ >> kThinLockCountShift) & kThinLockCountMask;
33 }
34
FatLockMonitor()35 inline 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
ForwardingAddress()41 inline size_t LockWord::ForwardingAddress() const {
42 DCHECK_EQ(GetState(), kForwardingAddress);
43 return static_cast<size_t>(value_ << kStateSize);
44 }
45
LockWord()46 inline LockWord::LockWord() : value_(0) {
47 DCHECK_EQ(GetState(), kUnlocked);
48 }
49
LockWord(Monitor * mon)50 inline LockWord::LockWord(Monitor* mon)
51 : value_(mon->GetMonitorId() | (kStateFat << kStateShift)) {
52 DCHECK_EQ(FatLockMonitor(), mon);
53 }
54
GetHashCode()55 inline 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