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      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       REQUIRES_SHARED(Locks::mutator_lock_);
     47 
     48   size_t FreeList(Thread* self, size_t num_ptrs, mirror::Object** ptrs) OVERRIDE
     49       REQUIRES_SHARED(Locks::mutator_lock_);
     50 
     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);
     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