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 OHOS_DISTRIBUTED_HARDWARE_COMPONENT_LOADER_H 17 #define OHOS_DISTRIBUTED_HARDWARE_COMPONENT_LOADER_H 18 19 #include <atomic> 20 #include <map> 21 #include <vector> 22 23 #include "single_instance.h" 24 #include "distributed_hardware_errno.h" 25 #include "device_type.h" 26 #include "ihardware_handler.h" 27 #include "idistributed_hardware_sink.h" 28 #include "idistributed_hardware_source.h" 29 #include "utils/impl_utils.h" 30 31 namespace OHOS { 32 namespace DistributedHardware { 33 struct CompConfig { 34 std::string name; 35 DHType type; 36 std::string compHandlerLoc; 37 std::string compHandlerVersion; 38 std::string compSourceLoc; 39 std::string compSourceVersion; 40 std::string compSinkLoc; 41 std::string compSinkVersion; 42 }; 43 44 struct CompHandler { 45 void *sourceHandler; 46 void *sinkHandler; 47 void *hardwareHandler; 48 }; 49 50 const std::string COMPONENTSLOAD_DISTRIBUTED_COMPONENTS = "distributed_components"; 51 52 class ComponentLoader { 53 DECLARE_SINGLE_INSTANCE_BASE(ComponentLoader); 54 55 public: ComponentLoader()56 ComponentLoader() : isLocalVersionInit_(false) {} ~ComponentLoader()57 ~ComponentLoader() {} 58 59 public: 60 int32_t Init(); 61 int32_t GetHardwareHandler(const DHType dhType, IHardwareHandler *&hardwareHandlerPtr); 62 int32_t GetSource(const DHType dhType, IDistributedHardwareSource *&sourcePtr); 63 int32_t GetSink(const DHType dhType, IDistributedHardwareSink *&sinkPtr); 64 int32_t UnInit(); 65 int32_t ReleaseHardwareHandler(const DHType dhType); 66 int32_t ReleaseSource(const DHType dhType); 67 int32_t ReleaseSink(const DHType dhType); 68 std::vector<DHType> GetAllCompTypes(); 69 int32_t GetLocalDHVersion(DHVersion &dhVersion); 70 71 private: 72 void *GetHandler(const std::string &soName); 73 void GetAllHandler(std::map<DHType, CompConfig> &dhtypeMap); 74 int32_t ReleaseHandler(void *&handler); 75 int32_t GetCompPathAndVersion(const std::string &jsonStr, std::map<DHType, CompConfig> &dhtypeMap); 76 CompVersion GetCompVersionFromComConfig(const CompConfig& cCfg); 77 int32_t ParseConfig(); 78 bool IsDHTypeExist(DHType dhType); 79 std::string Readfile(const std::string &filePath); 80 81 private: 82 DHVersion localDHVersion_; 83 std::map<DHType, CompHandler> compHandlerMap_; 84 std::atomic<bool> isLocalVersionInit_; 85 }; 86 } 87 } 88 #endif 89