1 /* 2 * Copyright (c) 2023 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 16 #ifndef DFX_MEMORY_H 17 #define DFX_MEMORY_H 18 19 #include <atomic> 20 #include <cstdint> 21 #include <memory> 22 #include <string> 23 #include <cinttypes> 24 #include <unistd.h> 25 26 namespace OHOS { 27 namespace HiviewDFX { 28 #define ALIGN_BYTES(align) ((align) - 1) 29 #define ALIGN_MASK(align) (~(static_cast<uint64_t>((align) - 1))) 30 #define ALIGN_VALUE(val, align) (((val) + ALIGN_BYTES(align)) & ALIGN_MASK(align)) 31 32 class DfxMemory { 33 public: 34 DfxMemory() = default; 35 virtual ~DfxMemory() = default; 36 37 static size_t MemoryCopy(void *dst, uint8_t *data, size_t copySize, size_t offset, size_t dataSize); 38 IsLocal()39 virtual bool IsLocal() const { return false; } 40 41 bool ReadFully(uint64_t addr, void* dst, size_t size); 42 virtual size_t Read(uint64_t addr, void* dst, size_t size) = 0; 43 virtual bool ReadString(uint64_t addr, std::string* dst, size_t maxRead); 44 inline bool Read32(uint64_t addr, uint32_t* dst); 45 inline bool Read64(uint64_t addr, uint64_t* dst); 46 Clear()47 virtual void Clear() {} 48 }; 49 } // namespace HiviewDFX 50 } // namespace OHOS 51 #endif 52