1 /* 2 * Copyright (C) 2022 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.car.builtin.os; 18 19 import android.annotation.RequiresApi; 20 import android.annotation.SystemApi; 21 import android.car.builtin.annotation.AddedIn; 22 import android.car.builtin.annotation.PlatformVersion; 23 import android.os.Build; 24 import android.os.Process; 25 26 /** 27 * Helper for {@link Process}. 28 * 29 * @hide 30 */ 31 @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES) 32 public final class ProcessHelper { 33 34 /** See {@code Process.THREAD_GROUP_DEFAULT} */ 35 @RequiresApi(Build.VERSION_CODES.UPSIDE_DOWN_CAKE) 36 @AddedIn(PlatformVersion.UPSIDE_DOWN_CAKE_0) 37 public static final int THREAD_GROUP_DEFAULT = Process.THREAD_GROUP_DEFAULT; 38 39 /** See {@code Process.THREAD_GROUP_FOREGROUND} */ 40 @RequiresApi(Build.VERSION_CODES.UPSIDE_DOWN_CAKE) 41 @AddedIn(PlatformVersion.UPSIDE_DOWN_CAKE_0) 42 public static final int THREAD_GROUP_FOREGROUND = 1; 43 44 /** See {@code Process.THREAD_GROUP_TOP_APP} */ 45 @RequiresApi(Build.VERSION_CODES.UPSIDE_DOWN_CAKE) 46 @AddedIn(PlatformVersion.UPSIDE_DOWN_CAKE_0) 47 public static final int THREAD_GROUP_TOP_APP = Process.THREAD_GROUP_TOP_APP; 48 ProcessHelper()49 private ProcessHelper() { 50 throw new UnsupportedOperationException(); 51 } 52 } 53