1 /* 2 * Copyright (c) 2021 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 * Description: FtraceDataReader define 16 */ 17 #ifndef FTRACE_DATA_READER_H 18 #define FTRACE_DATA_READER_H 19 20 #include <string> 21 #include "ftrace_namespace.h" 22 23 FTRACE_NS_BEGIN 24 class FtraceDataReader { 25 public: 26 explicit FtraceDataReader(const std::string& path); 27 ~FtraceDataReader(); 28 29 long Read(uint8_t data[], uint32_t size); 30 31 private: 32 DISALLOW_COPY_AND_MOVE(FtraceDataReader); 33 std::string path_; 34 int readFd_; 35 }; 36 FTRACE_NS_END 37 38 #endif