1 /*
2  * Copyright (c) 2022-2024 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_PUBLISHER_ITEM_H
17 #define OHOS_PUBLISHER_ITEM_H
18 #include <mutex>
19 #include <string>
20 #include <set>
21 
22 #include "refbase.h"
23 
24 #include "ipublisher_listener.h"
25 #include "single_instance.h"
26 
27 namespace OHOS {
28 namespace DistributedHardware {
29 class PublisherItem {
30 REMOVE_NO_USE_CONSTRUCTOR(PublisherItem);
31 public:
32     PublisherItem();
33     explicit PublisherItem(DHTopic topic);
34     virtual ~PublisherItem();
35     void AddListener(const sptr<IPublisherListener> listener);
36     void RemoveListener(const sptr<IPublisherListener> listener);
37     void PublishMessage(const std::string &message);
38 private:
39     DHTopic topic_;
40     std::mutex mutex_;
41     std::set<sptr<IPublisherListener>> listeners_;
42 };
43 } // namespace DistributedHardware
44 } // namespace OHOS
45 #endif // OHOS_PUBLISHER_ITEM_H