1 /*
2  * Copyright (C) 2014 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_GC_SPACE_MEMORY_TOOL_MALLOC_SPACE_H_
18 #define ART_RUNTIME_GC_SPACE_MEMORY_TOOL_MALLOC_SPACE_H_
19 
20 #include "malloc_space.h"
21 
22 namespace art {
23 namespace gc {
24 namespace space {
25 
26 // A specialization of DlMallocSpace/RosAllocSpace that places memory tool red
27 // zones around allocations.
28 template <typename BaseMallocSpaceType,
29           size_t kMemoryToolRedZoneBytes,
30           bool kAdjustForRedzoneInAllocSize,
31           bool kUseObjSizeForUsable>
32 class MemoryToolMallocSpace FINAL : public BaseMallocSpaceType {
33  public:
34   mirror::Object* AllocWithGrowth(Thread* self, size_t num_bytes, size_t* bytes_allocated,
35                                   size_t* usable_size, size_t* bytes_tl_bulk_allocated)
36       OVERRIDE;
37   mirror::Object* Alloc(Thread* self, size_t num_bytes, size_t* bytes_allocated,
38                         size_t* usable_size, size_t* bytes_tl_bulk_allocated) OVERRIDE;
39   mirror::Object* AllocThreadUnsafe(Thread* self, size_t num_bytes, size_t* bytes_allocated,
40                                     size_t* usable_size, size_t* bytes_tl_bulk_allocated)
41       OVERRIDE REQUIRES(Locks::mutator_lock_);
42 
43   size_t AllocationSize(mirror::Object* obj, size_t* usable_size) OVERRIDE;
44 
45   size_t Free(Thread* self, mirror::Object* ptr) OVERRIDE
46       SHARED_REQUIRES(Locks::mutator_lock_);
47 
48   size_t FreeList(Thread* self, size_t num_ptrs, mirror::Object** ptrs) OVERRIDE
49       SHARED_REQUIRES(Locks::mutator_lock_);
50 
RegisterRecentFree(mirror::Object * ptr ATTRIBUTE_UNUSED)51   void RegisterRecentFree(mirror::Object* ptr ATTRIBUTE_UNUSED) OVERRIDE {}
52 
53   size_t MaxBytesBulkAllocatedFor(size_t num_bytes) OVERRIDE;
54 
55   template <typename... Params>
56   MemoryToolMallocSpace(MemMap* mem_map, size_t initial_size, Params... params);
~MemoryToolMallocSpace()57   virtual ~MemoryToolMallocSpace() {}
58 
59  private:
60   DISALLOW_COPY_AND_ASSIGN(MemoryToolMallocSpace);
61 };
62 
63 }  // namespace space
64 }  // namespace gc
65 }  // namespace art
66 
67 #endif  // ART_RUNTIME_GC_SPACE_MEMORY_TOOL_MALLOC_SPACE_H_
68