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/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.util.ArrayList;
/**
* Test some basic thread stuff.
*/
public class Main {
static {
System.loadLibrary("arttest");
}
public static void main(String[] args) throws Exception {
System.out.println("thread test starting");
testThreadCapacity();
testThreadDaemons();
testSleepZero();
testSetName();
testThreadPriorities();
System.out.println("thread test done");
}
/*
* Simple thread capacity test.
*/
private static void testThreadCapacity() throws Exception {
TestCapacityThread[] threads = new TestCapacityThread[512];
for (int i = 0; i < 512; i++) {
threads[i] = new TestCapacityThread();
}
for (TestCapacityThread thread : threads) {
thread.start();
}
for (TestCapacityThread thread : threads) {
thread.join();
}
System.out.println("testThreadCapacity thread count: " + TestCapacityThread.mCount);
}
private static class TestCapacityThread extends Thread {
static int mCount = 0;
public void run() {
synchronized (TestCapacityThread.class) {
++mCount;
}
try {
sleep(1000);
} catch (Exception ex) {
}
}
}
private static void testThreadDaemons() {
Thread t = new Thread(null, new TestDaemonThread(), "TestDaemonThread", 7168);
t.setDaemon(false);
System.out.print("testThreadDaemons starting thread '" + t.getName() + "'\n");
t.start();
try {
t.join();
} catch (InterruptedException ex) {
ex.printStackTrace();
}
System.out.print("testThreadDaemons finished\n");
}
private static class TestDaemonThread implements Runnable {
public void run() {
System.out.print("testThreadDaemons @ Thread running\n");
try {
Thread.currentThread().setDaemon(true);
System.out.print("testThreadDaemons @ FAILED: setDaemon() succeeded\n");
} catch (IllegalThreadStateException itse) {
System.out.print("testThreadDaemons @ Got expected setDaemon exception\n");
}
try {
Thread.sleep(2000);
}
catch (InterruptedException ie) {
System.out.print("testThreadDaemons @ Interrupted!\n");
}
finally {
System.out.print("testThreadDaemons @ Thread bailing\n");
}
}
}
private static void testSleepZero() throws Exception {
Thread.currentThread().interrupt();
try {
Thread.sleep(0);
throw new AssertionError("unreachable");
} catch (InterruptedException e) {
if (Thread.currentThread().isInterrupted()) {
throw new AssertionError("thread is interrupted");
}
}
System.out.print("testSleepZero finished\n");
}
private static void testSetName() throws Exception {
System.out.print("testSetName starting\n");
Thread thread = new Thread() {
@Override
public void run() {
System.out.print("testSetName running\n");
}
};
thread.start();
thread.setName("HelloWorld"); // b/17302037 hang if setName called after start
if (!thread.getName().equals("HelloWorld")) {
throw new AssertionError("Unexpected thread name: " + thread.getName());
}
thread.join();
if (!thread.getName().equals("HelloWorld")) {
throw new AssertionError("Unexpected thread name after join: " + thread.getName());
}
System.out.print("testSetName finished\n");
}
private static void testThreadPriorities() throws Exception {
System.out.print("testThreadPriorities starting\n");
PriorityStoringThread t1 = new PriorityStoringThread(false);
t1.setPriority(Thread.MAX_PRIORITY);
t1.start();
t1.join();
if (supportsThreadPriorities() && (t1.getNativePriority() != Thread.MAX_PRIORITY)) {
System.out.print("thread priority for t1 was " + t1.getNativePriority() +
" [expected Thread.MAX_PRIORITY]\n");
}
PriorityStoringThread t2 = new PriorityStoringThread(true);
t2.start();
t2.join();
if (supportsThreadPriorities() && (t2.getNativePriority() != Thread.MAX_PRIORITY)) {
System.out.print("thread priority for t2 was " + t2.getNativePriority() +
" [expected Thread.MAX_PRIORITY]\n");
}
System.out.print("testThreadPriorities finished\n");
}
private static native int getNativePriority();
private static native boolean supportsThreadPriorities();
static class PriorityStoringThread extends Thread {
private final boolean setPriority;
private volatile int nativePriority;
public PriorityStoringThread(boolean setPriority) {
this.setPriority = setPriority;
this.nativePriority = -1;
}
@Override
public void run() {
if (setPriority) {
setPriority(Thread.MAX_PRIORITY);
}
nativePriority = Main.getNativePriority();
}
public int getNativePriority() {
return nativePriority;
}
}
}
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