1 /* 2 * Copyright (C) 2006 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.ArrayList; 18 19 /** 20 * Test some basic thread stuff. 21 */ 22 public class Main { 23 static { 24 System.loadLibrary("arttest"); 25 } 26 27 public static void main(String[] args) throws Exception { 28 System.out.println("thread test starting"); 29 testThreadCapacity(); 30 testThreadDaemons(); 31 testSleepZero(); 32 testSetName(); 33 testThreadPriorities(); 34 System.out.println("thread test done"); 35 } 36 37 /* 38 * Simple thread capacity test. 39 */ 40 private static void testThreadCapacity() throws Exception { 41 TestCapacityThread[] threads = new TestCapacityThread[512]; 42 for (int i = 0; i < 512; i++) { 43 threads[i] = new TestCapacityThread(); 44 } 45 46 for (TestCapacityThread thread : threads) { 47 thread.start(); 48 } 49 for (TestCapacityThread thread : threads) { 50 thread.join(); 51 } 52 53 System.out.println("testThreadCapacity thread count: " + TestCapacityThread.mCount); 54 } 55 56 private static class TestCapacityThread extends Thread { 57 static int mCount = 0; 58 public void run() { 59 synchronized (TestCapacityThread.class) { 60 ++mCount; 61 } 62 try { 63 sleep(1000); 64 } catch (Exception ex) { 65 } 66 } 67 } 68 69 private static void testThreadDaemons() { 70 Thread t = new Thread(null, new TestDaemonThread(), "TestDaemonThread", 7168); 71 72 t.setDaemon(false); 73 74 System.out.print("testThreadDaemons starting thread '" + t.getName() + "'\n"); 75 t.start(); 76 77 try { 78 t.join(); 79 } catch (InterruptedException ex) { 80 ex.printStackTrace(); 81 } 82 83 System.out.print("testThreadDaemons finished\n"); 84 } 85 86 private static class TestDaemonThread implements Runnable { 87 public void run() { 88 System.out.print("testThreadDaemons @ Thread running\n"); 89 90 try { 91 Thread.currentThread().setDaemon(true); 92 System.out.print("testThreadDaemons @ FAILED: setDaemon() succeeded\n"); 93 } catch (IllegalThreadStateException itse) { 94 System.out.print("testThreadDaemons @ Got expected setDaemon exception\n"); 95 } 96 97 try { 98 Thread.sleep(2000); 99 } 100 catch (InterruptedException ie) { 101 System.out.print("testThreadDaemons @ Interrupted!\n"); 102 } 103 finally { 104 System.out.print("testThreadDaemons @ Thread bailing\n"); 105 } 106 } 107 } 108 109 private static void testSleepZero() throws Exception { 110 Thread.currentThread().interrupt(); 111 try { 112 Thread.sleep(0); 113 throw new AssertionError("unreachable"); 114 } catch (InterruptedException e) { 115 if (Thread.currentThread().isInterrupted()) { 116 throw new AssertionError("thread is interrupted"); 117 } 118 } 119 System.out.print("testSleepZero finished\n"); 120 } 121 122 private static void testSetName() throws Exception { 123 System.out.print("testSetName starting\n"); 124 Thread thread = new Thread() { 125 @Override 126 public void run() { 127 System.out.print("testSetName running\n"); 128 } 129 }; 130 thread.start(); 131 thread.setName("HelloWorld"); // b/17302037 hang if setName called after start 132 if (!thread.getName().equals("HelloWorld")) { 133 throw new AssertionError("Unexpected thread name: " + thread.getName()); 134 } 135 thread.join(); 136 if (!thread.getName().equals("HelloWorld")) { 137 throw new AssertionError("Unexpected thread name after join: " + thread.getName()); 138 } 139 System.out.print("testSetName finished\n"); 140 } 141 142 private static void testThreadPriorities() throws Exception { 143 System.out.print("testThreadPriorities starting\n"); 144 145 PriorityStoringThread t1 = new PriorityStoringThread(false); 146 t1.setPriority(Thread.MAX_PRIORITY); 147 t1.start(); 148 t1.join(); 149 if (supportsThreadPriorities() && (t1.getNativePriority() != Thread.MAX_PRIORITY)) { 150 System.out.print("thread priority for t1 was " + t1.getNativePriority() + 151 " [expected Thread.MAX_PRIORITY]\n"); 152 } 153 154 PriorityStoringThread t2 = new PriorityStoringThread(true); 155 t2.start(); 156 t2.join(); 157 if (supportsThreadPriorities() && (t2.getNativePriority() != Thread.MAX_PRIORITY)) { 158 System.out.print("thread priority for t2 was " + t2.getNativePriority() + 159 " [expected Thread.MAX_PRIORITY]\n"); 160 } 161 162 System.out.print("testThreadPriorities finished\n"); 163 } 164 165 private static native int getNativePriority(); 166 private static native boolean supportsThreadPriorities(); 167 168 static class PriorityStoringThread extends Thread { 169 private final boolean setPriority; 170 private volatile int nativePriority; 171 172 public PriorityStoringThread(boolean setPriority) { 173 this.setPriority = setPriority; 174 this.nativePriority = -1; 175 } 176 177 @Override 178 public void run() { 179 if (setPriority) { 180 setPriority(Thread.MAX_PRIORITY); 181 } 182 183 nativePriority = Main.getNativePriority(); 184 } 185 186 public int getNativePriority() { 187 return nativePriority; 188 } 189 } 190 } 191
