1 /* 2 * Copyright 2021 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 com.android.server.nearby.common.eventloop; 18 19 import static java.lang.annotation.ElementType.CONSTRUCTOR; 20 import static java.lang.annotation.ElementType.METHOD; 21 import static java.lang.annotation.ElementType.TYPE; 22 import static java.lang.annotation.RetentionPolicy.CLASS; 23 24 import androidx.annotation.AnyThread; 25 import androidx.annotation.BinderThread; 26 import androidx.annotation.UiThread; 27 import androidx.annotation.WorkerThread; 28 29 import java.lang.annotation.Retention; 30 import java.lang.annotation.Target; 31 32 /** 33 * A collection of threading annotations relating to EventLoop. These should be used in conjunction 34 * with {@link UiThread}, {@link BinderThread}, {@link WorkerThread}, and {@link AnyThread}. 35 */ 36 public class Annotations { 37 38 /** 39 * Denotes that the annotated method or constructor should only be called on the EventLoop 40 * thread. 41 */ 42 @Retention(CLASS) 43 @Target({METHOD, CONSTRUCTOR, TYPE}) 44 public @interface EventThread { 45 } 46 47 /** Denotes that the annotated method or constructor should only be called on a Network 48 * thread. */ 49 @Retention(CLASS) 50 @Target({METHOD, CONSTRUCTOR, TYPE}) 51 public @interface NetworkThread { 52 } 53 } 54