1 /* 2 * Copyright (c) 2021-2022 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 namespace { 34 struct CompHandler { 35 DHType type; 36 void *sourceHandler; 37 int32_t sourceSaId; 38 void *sinkHandler; 39 int32_t sinkSaId; 40 void *hardwareHandler; 41 }; 42 } 43 44 struct CompConfig { 45 std::string name; 46 DHType type; 47 std::string compHandlerLoc; 48 std::string compHandlerVersion; 49 std::string compSourceLoc; 50 std::string compSourceVersion; 51 int32_t compSourceSaId; 52 std::string compSinkLoc; 53 std::string compSinkVersion; 54 int32_t compSinkSaId; 55 }; 56 57 class ComponentLoader { 58 DECLARE_SINGLE_INSTANCE_BASE(ComponentLoader); 59 60 public: ComponentLoader()61 ComponentLoader() : isLocalVersionInit_(false) {} ~ComponentLoader()62 ~ComponentLoader() {} 63 64 public: 65 int32_t Init(); 66 int32_t GetHardwareHandler(const DHType dhType, IHardwareHandler *&hardwareHandlerPtr); 67 int32_t GetSource(const DHType dhType, IDistributedHardwareSource *&sourcePtr); 68 int32_t GetSink(const DHType dhType, IDistributedHardwareSink *&sinkPtr); 69 int32_t UnInit(); 70 int32_t ReleaseHardwareHandler(const DHType dhType); 71 int32_t ReleaseSource(const DHType dhType); 72 int32_t ReleaseSink(const DHType dhType); 73 std::vector<DHType> GetAllCompTypes(); 74 int32_t GetLocalDHVersion(DHVersion &dhVersion); 75 int32_t GetSourceSaId(const DHType dhType); 76 DHType GetDHTypeBySrcSaId(const int32_t saId); 77 78 private: 79 void *GetHandler(const std::string &soName); 80 void GetAllHandler(std::map<DHType, CompConfig> &dhtypeMap); 81 int32_t ReleaseHandler(void *&handler); 82 int32_t GetCompPathAndVersion(const std::string &jsonStr, std::map<DHType, CompConfig> &dhtypeMap); 83 CompVersion GetCompVersionFromComConfig(const CompConfig& cCfg); 84 int32_t ParseConfig(); 85 void StoreLocalDHVersionInDB(); 86 bool IsDHTypeExist(DHType dhType); 87 std::string Readfile(const std::string &filePath); 88 89 private: 90 DHVersion localDHVersion_; 91 std::map<DHType, CompHandler> compHandlerMap_; 92 std::atomic<bool> isLocalVersionInit_; 93 }; 94 } // namespace DistributedHardware 95 } // namespace OHOS 96 #endif 97