1 /*
2  * Copyright (c) 2020 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 LITE_PUB_SUB_FEATURE_H
17 #define LITE_PUB_SUB_FEATURE_H
18 
19 #include "utils_list.h"
20 #include "message.h"
21 #include "feature.h"
22 #include "common.h"
23 #include "broadcast_interface.h"
24 
25 #ifdef __cplusplus
26 #if __cplusplus
27 extern "C" {
28 #endif
29 #endif
30 
31 typedef struct ConsumerNode {
32     UTILS_DL_LIST node;
33     Consumer *consumer;
34 } ConsumerNode;
35 
36 typedef struct Relation {
37     UTILS_DL_LIST node;
38     ConsumerNode callbacks;
39     Topic topic;
40 } Relation;
41 typedef struct PubSubFeature PubSubFeature;
42 
43 struct PubSubFeature {
44     INHERIT_FEATURE;
45     Relation *(*GetRelation)(PubSubFeature *feature, const Topic *topic);
46     MutexId mutex;
47     Relation relations;
48     Identity identity;
49 };
50 
51 #ifdef __cplusplus
52 #if __cplusplus
53 }
54 #endif
55 #endif
56 #endif // LITE_PUB_SUB_FEATURE_H
57