blob: 990fef785519b94e2d1d0182a60ce0252d2096be [file] [log] [blame]
/*
* Copyright (C) 2016 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.lang.reflect.Method;
import java.util.Map;
import dalvik.system.VMDebug;
public class Main implements Runnable {
static final int numberOfThreads = 4;
static final int totalOperations = 1000;
static final int maxStackDepth = 128;
static Method enableAllocTrackingMethod;
static Object holder;
static volatile boolean trackingThreadDone = false;
int threadIndex;
Main(int index) {
threadIndex = index;
}
public static void main(String[] args) throws Exception {
Class<?> klass = Class.forName("org.apache.harmony.dalvik.ddmc.DdmVmInternal");
if (klass == null) {
throw new AssertionError("Couldn't find DdmVmInternal class");
}
enableAllocTrackingMethod = klass.getDeclaredMethod("setRecentAllocationsTrackingEnabled",
boolean.class);
if (enableAllocTrackingMethod == null) {
throw new AssertionError("Couldn't find setRecentAllocationsTrackingEnabled method");
}
final Thread[] threads = new Thread[numberOfThreads];
for (int t = 0; t < threads.length; t++) {
threads[t] = new Thread(new Main(t));
threads[t].start();
}
for (Thread t : threads) {
t.join();
}
System.out.println("Finishing");
}
public void run() {
if (threadIndex == 0) {
for (int i = 0; i < totalOperations; ++i) {
try {
VMDebug.setAllocTrackerStackDepth(i % (maxStackDepth + 1));
enableAllocTrackingMethod.invoke(null, true);
holder = new Object();
enableAllocTrackingMethod.invoke(null, false);
} catch (Exception e) {
System.out.println(e);
return;
}
}
trackingThreadDone = true;
} else {
while (!trackingThreadDone) {
holder = new Object();
}
}
}
}