1 /* 2 * Copyright (c) 2025 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 MEMORYREADER_H 16 #define MEMORYREADER_H 17 18 #include "smart_fd.h" 19 namespace OHOS { 20 namespace HiviewDFX { 21 class MemoryReader { 22 public: 23 virtual ~MemoryReader() = default; 24 virtual bool ReadMemory(const uint64_t src, void* dst, size_t dataSize) = 0; 25 }; 26 27 class ThreadMemoryReader : public MemoryReader { 28 public: 29 ThreadMemoryReader(uintptr_t stackBegin, uintptr_t stackEnd); 30 ~ThreadMemoryReader() override = default; 31 bool ReadMemory(const uint64_t src, void* dst, size_t dataSize) override; 32 private: 33 uintptr_t stackBegin_{0}; 34 uintptr_t stackEnd_{0}; 35 }; 36 37 class ProcessMemoryReader : public MemoryReader { 38 public: 39 ProcessMemoryReader(); 40 ~ProcessMemoryReader() override = default; 41 bool ReadMemory(const uint64_t src, void* dst, size_t dataSize) override ; 42 private: 43 SmartFd writeFd_; 44 SmartFd readFd_; 45 }; 46 } 47 } 48 #endif