1 /* 2 * Copyright (C) 2017 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 package android.frameworks.sensorservice@1.0; 18 19 import android.hardware.sensors@1.0::Event; 20 21 /** 22 * An IEventQueueCallback describes the callback that is called upon 23 * any events. 24 */ 25 interface IEventQueueCallback { 26 /** 27 * When any event is obtained from the sensor, this function must be called 28 * with the event data. 29 * 30 * Implementation of this function must finish in short time predictably. 31 * It must never block or run for extended period of time. It must offload 32 * heavy computation to a separate thread. 33 * 34 * @param event the event data. 35 */ 36 oneway onEvent(Event event); 37 }; 38
