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 16 #ifndef HIPERF_PERF_PIPE 17 #define HIPERF_PERF_PIPE 18 19 #include <fstream> 20 #include <stdint.h> 21 #include "utilities.h" 22 #include "perf_events.h" 23 24 namespace OHOS { 25 namespace Developtools { 26 namespace HiPerf { 27 enum class CommandType { 28 RECORD = 0, 29 STAT, 30 }; 31 const std::string CONTROL_CMD_PREPARE = "prepare"; 32 const std::string CONTROL_CMD_START = "start"; 33 const std::string CONTROL_CMD_PAUSE = "pause"; 34 const std::string CONTROL_CMD_RESUME = "resume"; 35 const std::string CONTROL_CMD_OUTPUT = "output"; 36 const std::string CONTROL_CMD_STOP = "stop"; 37 class PerfPipe { 38 private: 39 std::string fifoFileC2S_; 40 std::string fifoFileS2C_; 41 std::string controlCmd_; 42 std::string perfCmd_; 43 bool outputEnd_ = false; 44 45 public: 46 void SetFifoFileName(const CommandType& commandType, std::string& controlCmd, 47 std::string& fifoFileC2S, std::string& fifoFileS2C); 48 void RemoveFifoFile(); 49 bool CreateFifoFile(); 50 bool SendFifoAndWaitReply(const std::string &cmd, const std::chrono::milliseconds &timeOut); 51 bool WaitFifoReply(const int fd, const std::chrono::milliseconds &timeOut); 52 void WaitFifoReply(const int fd, const std::chrono::milliseconds &timeOut, std::string& reply); 53 void ProcessStopCommand(const bool ret); 54 void ProcessOutputCommand(bool ret); 55 bool ProcessControlCmd(); 56 void SetOutPutEnd(const bool outputEnd); 57 }; 58 } // namespace HiPerf 59 } // namespace Developtools 60 } // namespace OHOS 61 #endif // HIPERF_PERF_PIPE 62