1 /* 2 * Copyright (C) 2016 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 import java.util.concurrent.Semaphore; 18 19 public class Main { 20 static final Semaphore start = new Semaphore(0); 21 static volatile boolean continue_loop = true; 22 23 public static void main(String[] args) throws Exception { 24 System.loadLibrary(args[0]); 25 Thread t = new Thread(Main::runTargetThread, "Target Thread"); 26 27 t.start(); 28 // Wait for other thread to start. 29 start.acquire(); 30 31 System.out.println("pushing checkpoints"); 32 pushCheckpoints(t); 33 34 System.out.println("checkpoints pushed"); 35 continue_loop = false; 36 37 t.join(); 38 39 checkCheckpointsRun(); 40 41 System.out.println("Passed!"); 42 } 43 44 public static native void pushCheckpoints(Thread t); 45 public static native boolean checkCheckpointsRun(); 46 47 public static void doNothing() {} 48 public static void runTargetThread() { 49 System.out.println("Other thread running"); 50 try { 51 start.release(); 52 while (continue_loop) { 53 doNothing(); 54 } 55 } catch (Exception e) { 56 throw new Error("Exception occurred!", e); 57 } 58 } 59 } 60
