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72 lines
2.1 KiB
72 lines
2.1 KiB
4 months ago
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/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_RUNTIME_LOCK_WORD_INL_H_
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#define ART_RUNTIME_LOCK_WORD_INL_H_
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#include "lock_word.h"
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#include "monitor_pool.h"
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namespace art {
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inline uint32_t LockWord::ThinLockOwner() const {
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DCHECK_EQ(GetState(), kThinLocked);
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CheckReadBarrierState();
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return (value_ >> kThinLockOwnerShift) & kThinLockOwnerMask;
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}
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inline uint32_t LockWord::ThinLockCount() const {
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DCHECK_EQ(GetState(), kThinLocked);
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CheckReadBarrierState();
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return (value_ >> kThinLockCountShift) & kThinLockCountMask;
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}
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inline Monitor* LockWord::FatLockMonitor() const {
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DCHECK_EQ(GetState(), kFatLocked);
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CheckReadBarrierState();
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MonitorId mon_id = (value_ >> kMonitorIdShift) & kMonitorIdMask;
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return MonitorPool::MonitorFromMonitorId(mon_id);
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}
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inline size_t LockWord::ForwardingAddress() const {
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DCHECK_EQ(GetState(), kForwardingAddress);
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return value_ << kForwardingAddressShift;
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}
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inline LockWord::LockWord() : value_(0) {
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DCHECK_EQ(GetState(), kUnlocked);
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}
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inline LockWord::LockWord(Monitor* mon, uint32_t gc_state)
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: value_(mon->GetMonitorId() | (gc_state << kGCStateShift) | (kStateFat << kStateShift)) {
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#ifndef __LP64__
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DCHECK_ALIGNED(mon, kMonitorIdAlignment);
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#endif
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DCHECK_EQ(FatLockMonitor(), mon);
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DCHECK_LE(mon->GetMonitorId(), static_cast<uint32_t>(kMaxMonitorId));
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CheckReadBarrierState();
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}
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inline int32_t LockWord::GetHashCode() const {
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DCHECK_EQ(GetState(), kHashCode);
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CheckReadBarrierState();
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return (value_ >> kHashShift) & kHashMask;
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}
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} // namespace art
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#endif // ART_RUNTIME_LOCK_WORD_INL_H_
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