4 * Copyright (c) 2017 Samsung Electronics Co., Ltd.
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
20 #ifndef __SENSOR_PUBLISHER_H__
21 #define __SENSOR_PUBLISHER_H__
23 #include <sensor_types.h>
27 class sensor_observer;
29 class sensor_publisher {
31 virtual ~sensor_publisher() {}
33 virtual bool has_observer(sensor_observer *ob) = 0;
34 virtual void add_observer(sensor_observer *ob) = 0;
35 virtual void remove_observer(sensor_observer *ob) = 0;
36 virtual int notify(const char *type, sensor_data_t *data, int len) = 0;
41 #endif /* __SENSOR_PUBLISHER_H__ */