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_CJ_LISTENER_LIST_H
17 #define OHOS_REQUEST_CJ_LISTENER_LIST_H
18 
19 #include <list>
20 #include <mutex>
21 #include <string>
22 #include <functional>
23 #include "js_common.h"
24 #include "cj_request_ffi.h"
25 
26 namespace OHOS::CJSystemapi::Request {
27 using OHOS::Request::SubscribeType;
28 using OHOS::Request::ExceptionErrorCode;
29 using OHOS::Request::NotifyData;
30 
31 using CFunc = void *;
32 using ProgressOnCallBackType  = std::function<void(CProgress)>;
33 
34 class ListenerList {
35 public:
ListenerList(const std::string & taskId,const SubscribeType & type)36     ListenerList(const std::string &taskId, const SubscribeType &type)
37         : taskId_(taskId), type_(type)
38     {
39     }
40     bool HasListener();
41     struct CallBackInfo {
42         ProgressOnCallBackType cb_;
43         CFunc cbId_ = nullptr;
44 
CallBackInfoCallBackInfo45         CallBackInfo(ProgressOnCallBackType cb, CFunc cbId)
46             : cb_(cb), cbId_(cbId) {}
47     };
48 
49 protected:
50     bool IsListenerAdded(void *cb);
51     void OnMessageReceive(const std::shared_ptr<NotifyData> &notifyData);
52     void AddListenerInner(ProgressOnCallBackType &cb, CFunc cbId);
53     void RemoveListenerInner(CFunc cb);
54 
55 protected:
56     const std::string taskId_;
57     const SubscribeType type_;
58 
59     std::recursive_mutex allCbMutex_;
60     std::list<std::pair<bool, std::shared_ptr<CallBackInfo>>> allCb_;
61     std::atomic<uint32_t> validCbNum{ 0 };
62 };
63 } // namespace OHOS::CJSystemapi::Request
64 #endif // OHOS_REQUEST_CJ_LISTENER_LIST_H
65