1 /* 2 * Copyright (C) 2023 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 NAPI_ASYNC_CALLBACK_H 17 #define NAPI_ASYNC_CALLBACK_H 18 19 #include <map> 20 #include <memory> 21 #include <mutex> 22 #include <string> 23 #include "napi/native_api.h" 24 #include "napi_async_work.h" 25 26 namespace OHOS { 27 namespace Bluetooth { 28 class NapiCallback; 29 class NapiPromise; 30 class NapiNativeObject; 31 32 struct NapiAsyncCallback { 33 enum class Type { 34 CALLBACK = 1, 35 PROMISE, 36 }; 37 38 void CallFunction(int errCode, const std::shared_ptr<NapiNativeObject> &object); 39 napi_value GetRet(void); 40 41 Type type; 42 napi_env env; 43 std::shared_ptr<NapiCallback> callback = nullptr; 44 std::shared_ptr<NapiPromise> promise = nullptr; 45 }; 46 47 class NapiCallback { 48 public: 49 // napi_value 'callback' shall be type of napi_founction, check it use NapiIsFunction(). 50 NapiCallback(napi_env env, napi_value callback); 51 ~NapiCallback(); 52 53 void CallFunction(const std::shared_ptr<NapiNativeObject> &object); 54 void CallFunction(int errCode, const std::shared_ptr<NapiNativeObject> &object); 55 napi_env GetNapiEnv(void); 56 bool Equal(napi_env env, napi_value &callback) const; 57 std::string ToLogString(void) const; 58 private: 59 NapiCallback(const NapiCallback &) = delete; 60 NapiCallback &operator=(const NapiCallback &) = delete; 61 NapiCallback(NapiCallback &&) = delete; 62 NapiCallback &operator=(NapiCallback &&) noexcept = delete; 63 64 napi_env env_; 65 napi_ref callbackRef_; 66 int id_; 67 }; 68 69 class NapiPromise { 70 public: 71 explicit NapiPromise(napi_env env); 72 ~NapiPromise() = default; 73 74 void ResolveOrReject(int errCode, const std::shared_ptr<NapiNativeObject> &object); 75 void Resolve(napi_value resolution); 76 void Reject(napi_value rejection); 77 napi_value GetPromise(void) const; 78 private: 79 napi_env env_; 80 napi_value promise_; 81 napi_deferred deferred_; 82 bool isResolvedOrRejected_ = false; 83 }; 84 85 class NapiHandleScope { 86 public: 87 explicit NapiHandleScope(napi_env env); 88 ~NapiHandleScope(); 89 90 private: 91 napi_env env_; 92 napi_handle_scope scope_; 93 }; 94 95 } // namespace Bluetooth 96 } // namespace OHOS 97 #endif // NAPI_ASYNC_CALLBACK_H