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      1 /*
      2  * Copyright (C) 2018 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_WRITE_BARRIER_INL_H_
     18 #define ART_RUNTIME_WRITE_BARRIER_INL_H_
     19 
     20 #include "write_barrier.h"
     21 
     22 #include "gc/accounting/card_table-inl.h"
     23 #include "gc/heap.h"
     24 #include "obj_ptr-inl.h"
     25 #include "runtime.h"
     26 
     27 namespace art {
     28 
     29 template <WriteBarrier::NullCheck kNullCheck>
     30 inline void WriteBarrier::ForFieldWrite(ObjPtr<mirror::Object> dst,
     31                                         MemberOffset offset ATTRIBUTE_UNUSED,
     32                                         ObjPtr<mirror::Object> new_value) {
     33   if (kNullCheck == kWithNullCheck && new_value == nullptr) {
     34     return;
     35   }
     36   DCHECK(new_value != nullptr);
     37   GetCardTable()->MarkCard(dst.Ptr());
     38 }
     39 
     40 inline void WriteBarrier::ForArrayWrite(ObjPtr<mirror::Object> dst,
     41                                         int start_offset ATTRIBUTE_UNUSED,
     42                                         size_t length ATTRIBUTE_UNUSED) {
     43   GetCardTable()->MarkCard(dst.Ptr());
     44 }
     45 
     46 inline void WriteBarrier::ForEveryFieldWrite(ObjPtr<mirror::Object> obj) {
     47   GetCardTable()->MarkCard(obj.Ptr());
     48 }
     49 
     50 inline gc::accounting::CardTable* WriteBarrier::GetCardTable() {
     51   return Runtime::Current()->GetHeap()->GetCardTable();
     52 }
     53 
     54 }  // namespace art
     55 
     56 #endif  // ART_RUNTIME_WRITE_BARRIER_INL_H_
     57