1 /** 2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #ifndef PANDA_RUNTIME_MEM_MALLOC_PROXY_ALLOCATOR_H 16 #define PANDA_RUNTIME_MEM_MALLOC_PROXY_ALLOCATOR_H 17 18 #include <functional> 19 #include <map> 20 #include <memory> 21 #include <unordered_map> 22 #include <type_traits> 23 24 #include "libpandabase/mem/mem.h" 25 #include "libpandabase/mem/space.h" 26 #include "libpandabase/os/mutex.h" 27 28 namespace panda::mem { 29 30 using panda::Alignment; 31 class EmptyMemoryConfig; 32 33 /** 34 * \brief Class-proxy to the malloc, do some logging. 35 */ 36 template <typename AllocConfigT> 37 class MallocProxyAllocator { 38 public: 39 NO_COPY_SEMANTIC(MallocProxyAllocator); 40 NO_MOVE_SEMANTIC(MallocProxyAllocator); 41 42 explicit MallocProxyAllocator(MemStatsType *mem_stats, SpaceType type_allocation = SpaceType::SPACE_TYPE_INTERNAL) type_allocation_(type_allocation)43 : type_allocation_(type_allocation), mem_stats_ {mem_stats} 44 { 45 } 46 47 ~MallocProxyAllocator(); 48 49 [[nodiscard]] void *Alloc(size_t size, Alignment align = DEFAULT_ALIGNMENT); 50 51 template <class T> AllocArray(size_t size)52 T *AllocArray(size_t size) 53 { 54 return static_cast<T *>(this->Alloc(sizeof(T) * size)); 55 } 56 57 void Free(void *mem); 58 59 private: 60 static constexpr bool DUMMY_ALLOC_CONFIG = std::is_same<AllocConfigT, EmptyMemoryConfig>::value; 61 std::unordered_map<void *, size_t> allocated_memory_; 62 SpaceType type_allocation_; 63 MemStatsType *mem_stats_; 64 os::memory::Mutex lock_; 65 }; 66 67 } // namespace panda::mem 68 69 #endif // PANDA_RUNTIME_MEM_MALLOC_PROXY_ALLOCATOR_H 70