1 /*
2  * Copyright (c) 2024 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_REQUEST_LISTENER_LIST_H
17 #define OHOS_REQUEST_LISTENER_LIST_H
18 
19 #include <list>
20 #include <mutex>
21 #include <string>
22 
23 #include "napi/native_api.h"
24 #include "napi_utils.h"
25 
26 namespace OHOS::Request {
27 class ListenerList {
28 public:
ListenerList(napi_env env,const std::string & taskId,const SubscribeType & type)29     ListenerList(napi_env env, const std::string &taskId, const SubscribeType &type)
30         : env_(env), taskId_(taskId), type_(type)
31     {
32     }
33     bool HasListener();
34     void DeleteAllListenerRef();
35 
36 protected:
37     bool IsListenerAdded(napi_value cb);
38     void OnMessageReceive(napi_value *value, uint32_t paramNumber);
39     napi_status AddListenerInner(napi_value cb);
40     napi_status RemoveListenerInner(napi_value cb = nullptr);
41 
42 protected:
43     const napi_env env_;
44     const std::string taskId_;
45     const SubscribeType type_;
46     std::list<std::pair<bool, napi_ref>> allCb_;
47     std::recursive_mutex allCbMutex_;
48     std::atomic<uint32_t> validCbNum{ 0 };
49 };
50 
51 } // namespace OHOS::Request
52 
53 #endif // OHOS_REQUEST_LISTENER_LIST_H
54