1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef CHRE_PLATFORM_SHARED_PLATFORM_SENSOR_UTIL_H_ 18 #define CHRE_PLATFORM_SHARED_PLATFORM_SENSOR_UTIL_H_ 19 20 #include "chre/core/sensor_type.h" 21 22 namespace chre { 23 24 /** 25 * A helper function that updates the last event of a sensor in the main thread. 26 * Platform should call this function only for an on-change sensor. 27 * 28 * @param sensorType The SensorType of the sensor. 29 * @param eventData A non-null pointer to the sensor's CHRE event data. 30 */ 31 void updateLastEvent(SensorType sensorType, const void *eventData); 32 33 /** 34 * A helper chreEventCompleteFunction that handles freeing sensor data and 35 * removing all requests associated with the sensor type if it represents a 36 * one-shot sensor. 37 * 38 * NOTE: This function assumes the eventData was allocated using the memoryAlloc 39 * platform function. 40 * 41 * @see postEvent 42 * @param eventType The type of sample event that eventData represents. 43 * @param eventData The sensor event data that should be freed. 44 */ 45 void sensorDataEventFree(uint16_t eventType, void *eventData); 46 47 } // namespace chre 48 49 #endif // CHRE_PLATFORM_SHARED_PLATFORM_SENSOR_UTIL_H_ 50