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_SERVICE_H 17 #define OHOS_DISTRIBUTED_HARDWARE_SERVICE_H 18 19 #include "system_ability.h" 20 #include "ipc_object_stub.h" 21 22 #include "distributed_hardware_stub.h" 23 #include "single_instance.h" 24 25 namespace OHOS { 26 namespace DistributedHardware { 27 enum class ServiceRunningState { 28 STATE_NOT_START, 29 STATE_RUNNING 30 }; 31 32 class DistributedHardwareService : public SystemAbility, public DistributedHardwareStub { 33 DECLARE_SYSTEM_ABILITY(DistributedHardwareService); 34 public: 35 DistributedHardwareService(int32_t saId, bool runOnCreate); 36 ~DistributedHardwareService() = default; 37 int32_t RegisterPublisherListener(const DHTopic topic, const sptr<IPublisherListener> &listener) override; 38 int32_t UnregisterPublisherListener(const DHTopic topic, const sptr<IPublisherListener> &listener) override; 39 int32_t PublishMessage(const DHTopic topic, const std::string &msg) override; 40 int Dump(int32_t fd, const std::vector<std::u16string>& args) override; 41 42 protected: 43 void OnStart() override; 44 void OnStop() override; 45 46 private: 47 bool Init(); 48 49 private: 50 bool registerToService_ = false; 51 ServiceRunningState state_ = ServiceRunningState::STATE_NOT_START; 52 }; 53 } // namespace DistributedHardware 54 } // namespace OHOS 55 #endif 56