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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>
ForFieldWrite(ObjPtr<mirror::Object> dst,MemberOffset offset ATTRIBUTE_UNUSED,ObjPtr<mirror::Object> new_value)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 
ForArrayWrite(ObjPtr<mirror::Object> dst,int start_offset ATTRIBUTE_UNUSED,size_t length ATTRIBUTE_UNUSED)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 
ForEveryFieldWrite(ObjPtr<mirror::Object> obj)46 inline void WriteBarrier::ForEveryFieldWrite(ObjPtr<mirror::Object> obj) {
47   GetCardTable()->MarkCard(obj.Ptr());
48 }
49 
GetCardTable()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