1 /* 2 * Copyright (C) 2024 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.appfunctions; 18 19 import java.util.concurrent.ExecutorService; 20 import java.util.concurrent.Executors; 21 import java.util.concurrent.LinkedBlockingQueue; 22 import java.util.concurrent.ThreadPoolExecutor; 23 import java.util.concurrent.TimeUnit; 24 25 /** Executors for App function operations. */ 26 public final class AppFunctionExecutors { 27 28 static final int sConcurrency = Runtime.getRuntime().availableProcessors(); 29 30 /** Executor for operations that do not need to block. */ 31 public static final ThreadPoolExecutor THREAD_POOL_EXECUTOR = 32 new ThreadPoolExecutor( 33 /* corePoolSize= */ sConcurrency, 34 /* maxConcurrency= */ sConcurrency, 35 /* keepAliveTime= */ 1L, 36 /* unit= */ TimeUnit.SECONDS, 37 /* workQueue= */ new LinkedBlockingQueue<>(), 38 new NamedThreadFactory("AppFunctionExecutors")); 39 40 /** Executor for stats logging. */ 41 public static final ExecutorService LOGGING_THREAD_EXECUTOR = 42 Executors.newSingleThreadExecutor( 43 new NamedThreadFactory("AppFunctionsLoggingExecutors")); 44 45 static { 46 THREAD_POOL_EXECUTOR.allowCoreThreadTimeOut(true); 47 } 48 AppFunctionExecutors()49 private AppFunctionExecutors() {} 50 } 51