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