1 /* 2 * Copyright (C) 2019 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.ext.services.watchdog; 18 19 /** 20 * A type of explicit health check that can be performed on a device, e.g network health check 21 */ 22 interface ExplicitHealthChecker { 23 /** 24 * Requests a checker to listen to explicit health checks for {@link #getPackageName}. 25 * {@link #isPending} will now return {@code true}. 26 */ request()27 void request(); 28 29 /** 30 * Cancels a pending explicit health check request for {@link #getPackageName}. 31 * {@link #isPending} will now return {@code false}. 32 */ cancel()33 void cancel(); 34 35 /** 36 * Returns {@code true} if a request is pending, {@code false} otherwise. 37 */ isPending()38 boolean isPending(); 39 40 /** 41 * Returns the name of the package this checker can make requests for. 42 */ getSupportedPackageName()43 String getSupportedPackageName(); 44 } 45