1 /* 2 * Copyright (c) 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 NETMANAGER_BASE_NET_STATS_CALLBACK_OBSERVER_H 17 #define NETMANAGER_BASE_NET_STATS_CALLBACK_OBSERVER_H 18 19 #include <cstdint> 20 #include <memory> 21 #include <utility> 22 #include <string> 23 24 #include <napi/native_api.h> 25 #include <napi/native_node_api.h> 26 #include <uv.h> 27 28 #include "event_manager.h" 29 #include "napi_utils.h" 30 #include "net_stats_callback_stub.h" 31 32 namespace OHOS { 33 namespace NetManagerStandard { 34 class StatisticsCallbackObserver : public NetStatsCallbackStub { 35 public: 36 int32_t NetIfaceStatsChanged(const std::string &iface) override; 37 int32_t NetUidStatsChanged(const std::string &iface, uint32_t uid) override; 38 39 private: CallbackTemplate(uv_work_t * work,int status)40 template <napi_value (*MakeJsValue)(napi_env, void *)> static void CallbackTemplate(uv_work_t *work, int status) 41 { 42 (void)status; 43 if (work == nullptr) { 44 return; 45 } 46 auto workWrapper = static_cast<UvWorkWrapper *>(work->data); 47 if (workWrapper == nullptr) { 48 delete work; 49 return; 50 } 51 napi_env env = workWrapper->env; 52 auto closeScope = [env](napi_handle_scope scope) { NapiUtils::CloseScope(env, scope); }; 53 std::unique_ptr<napi_handle_scope__, decltype(closeScope)> scope(NapiUtils::OpenScope(env), closeScope); 54 napi_value obj = MakeJsValue(env, workWrapper->data); 55 std::pair<napi_value, napi_value> arg = {NapiUtils::GetUndefined(workWrapper->env), obj}; 56 workWrapper->manager->Emit(workWrapper->type, arg); 57 delete workWrapper; 58 delete work; 59 } 60 61 static napi_value CreateNetIfaceStatsChangedParam(napi_env env, void *data); 62 static napi_value CreateNetUidStatsChangedParam(napi_env env, void *data); 63 64 static void NetIfaceStatsChangedCallback(uv_work_t *work, int status); 65 static void NetUidStatsChangedCallback(uv_work_t *work, int status); 66 }; 67 } // namespace NetManagerStandard 68 } // namespace OHOS 69 #endif // NETMANAGER_BASE_NET_STATS_CALLBACK_OBSERVER_H 70