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 16 #ifndef PLUGIN_MODULE_H 17 #define PLUGIN_MODULE_H 18 19 #include <chrono> 20 #include <memory> 21 #include <string> 22 23 #include "buffer_writer.h" 24 #include "writer_adapter.h" 25 26 struct PluginModuleInfo { 27 std::string name; 28 uint32_t bufferSizeHint = 0; 29 }; 30 31 struct PluginModuleStruct; 32 struct WriterStruct; 33 34 using BufferWriterPtr = STD_PTR(shared, BufferWriter); 35 36 class PluginModule { 37 public: 38 enum SampleMode { 39 UNKNOWN, 40 POLLING, 41 STREAMING, 42 }; 43 explicit PluginModule(const std::string& path = ""); 44 ~PluginModule(); 45 std::string ComputeSha256(); 46 47 bool Load(); 48 bool Unload(); 49 50 SampleMode GetSampleMode() const; 51 bool GetInfo(PluginModuleInfo& info); 52 bool GetPluginName(std::string& pluginName); 53 bool GetBufferSizeHint(uint32_t& bufferSizeHint); 54 bool IsRunning(); 55 bool IsLoaded(); 56 bool BindFunctions(); 57 58 bool StartSession(const uint8_t* buffer, uint32_t size); 59 bool StopSession(); 60 int32_t ReportResult(uint8_t* buffer, uint32_t size); 61 62 bool RegisterWriter(const BufferWriterPtr writer); 63 WriterPtr GetWriter(); 64 65 void SetConfigData(const std::string& data); 66 std::string GetConfigData() const; 67 68 private: 69 void* handle_; 70 bool running_; 71 std::string path_; 72 std::string pluginName_; 73 std::string configData_; 74 PluginModuleStruct* structPtr_; 75 76 std::shared_ptr<WriterAdapter> writerAdapter_; 77 78 std::chrono::steady_clock::time_point lastTime_; 79 bool first_ = true; 80 }; 81 82 #endif // !PLUGIN_MODULE_H 83