19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 170dc59e78e18493aecd37427531d093e800846c3eBrett Chabotpackage android.core; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.test.suitebuilder.annotation.LargeTest; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.test.suitebuilder.annotation.MediumTest; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.test.suitebuilder.annotation.SmallTest; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.test.suitebuilder.annotation.Suppress; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport dalvik.system.VMRuntime; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport junit.framework.TestCase; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.ref.PhantomReference; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.ref.ReferenceQueue; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.ref.SoftReference; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.lang.ref.WeakReference; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.LinkedList; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.Random; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class HeapTest extends TestCase { 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final String TAG = "HeapTest"; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns a WeakReference to an object that has no 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * other references. This is done in a separate method 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to ensure that the Object's address isn't sitting in 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a stale local register. 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private WeakReference<Object> newRef() { 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new WeakReference<Object>(new Object()); 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void makeRefs(Object objects[], SoftReference<Object> refs[]) { 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i++) { 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[i] = (Object) new byte[8 * 1024]; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refs[i] = new SoftReference<Object>(objects[i]); 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static <T> int checkRefs(SoftReference<T> refs[], int last) { 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int numCleared = 0; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i = 0; i < refs.length; i++) { 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object o = refs[i].get(); 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (o == null) { 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project numCleared++; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (numCleared != last) { 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i(TAG, "****** " + numCleared + "/" + i + " cleared ******"); 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return numCleared; 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void clearRefs(Object objects[], int skip) { 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i += skip) { 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[i] = null; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void clearRefs(Object objects[]) { 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearRefs(objects, 1); 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static <T> void checkRefs(T objects[], SoftReference<T> refs[]) { 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean ok = true; 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i++) { 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (refs[i].get() != objects[i]) { 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok = false; 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!ok) { 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Test failed: soft refs not cleared"); 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @MediumTest 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void testGcSoftRefs() throws Exception { 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int NUM_REFS = 128; 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object objects[] = new Object[NUM_REFS]; 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SoftReference<Object> refs[] = new SoftReference[objects.length]; 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Create a bunch of objects and a parallel array 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of SoftReferences. 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project makeRefs(objects, refs); 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().gc(); 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Let go of some of the hard references to the objects so that 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the references can be cleared. 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearRefs(objects, 3); 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Collect all softly-reachable objects. 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project VMRuntime.getRuntime().gcSoftReferences(); 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().runFinalization(); 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Make sure that the objects were collected. 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRefs(objects, refs); 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Remove more hard references and re-check. 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearRefs(objects, 2); 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project VMRuntime.getRuntime().gcSoftReferences(); 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().runFinalization(); 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRefs(objects, refs); 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Remove the rest of the references and re-check. 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Remove more hard references and re-check. 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearRefs(objects); 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project VMRuntime.getRuntime().gcSoftReferences(); 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().runFinalization(); 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRefs(objects, refs); 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void xxtestSoftRefPartialClean() throws Exception { 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int NUM_REFS = 128; 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object objects[] = new Object[NUM_REFS]; 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SoftReference<Object> refs[] = new SoftReference[objects.length]; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Create a bunch of objects and a parallel array 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of SoftReferences. 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project makeRefs(objects, refs); 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().gc(); 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Let go of the hard references to the objects so that 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the references can be cleared. 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearRefs(objects); 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Start creating a bunch of temporary and permanent objects 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to drive GC. 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int NUM_OBJECTS = 64 * 1024; 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object junk[] = new Object[NUM_OBJECTS]; 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Random random = new Random(); 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i = 0; 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mod = 0; 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalSize = 0; 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int cleared = -1; 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (i < junk.length && totalSize < 8 * 1024 * 1024) { 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int r = random.nextInt(64 * 1024) + 128; 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object o = (Object) new byte[r]; 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (++mod % 16 == 0) { 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project junk[i++] = o; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project totalSize += r * 4; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cleared = checkRefs(refs, cleared); 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void makeRefs(Object objects[], WeakReference<Object> refs[]) { 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i++) { 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[i] = new Object(); 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refs[i] = new WeakReference<Object>(objects[i]); 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static <T> void checkRefs(T objects[], WeakReference<T> refs[]) { 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean ok = true; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i++) { 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (refs[i].get() != objects[i]) { 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok = false; 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!ok) { 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Test failed: " + 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "weak refs not cleared"); 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @MediumTest 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void testWeakRefs() throws Exception { 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int NUM_REFS = 16; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object objects[] = new Object[NUM_REFS]; 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project WeakReference<Object> refs[] = new WeakReference[objects.length]; 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Create a bunch of objects and a parallel array 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of WeakReferences. 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project makeRefs(objects, refs); 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().gc(); 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRefs(objects, refs); 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Clear out every other strong reference. 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i += 2) { 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[i] = null; 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().gc(); 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRefs(objects, refs); 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Clear out the rest of them. 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i++) { 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[i] = null; 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().gc(); 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRefs(objects, refs); 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void makeRefs(Object objects[], PhantomReference<Object> refs[], 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ReferenceQueue<Object> queue) { 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i++) { 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[i] = new Object(); 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refs[i] = new PhantomReference<Object>(objects[i], queue); 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static <T> void checkRefs(T objects[], PhantomReference<T> refs[], 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ReferenceQueue<T> queue) { 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean ok = true; 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Make sure that the reference that should be on 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the queue are marked as enqueued. Once we 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pull them off the queue, they will no longer 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be marked as enqueued. 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i++) { 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (objects[i] == null && refs[i] != null) { 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!refs[i].isEnqueued()) { 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok = false; 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!ok) { 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Test failed: " + 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "phantom refs not marked as enqueued"); 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Make sure that all of the references on the queue 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * are supposed to be there. 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PhantomReference<T> ref; 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while ((ref = (PhantomReference<T>) queue.poll()) != null) { 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Find the list index that corresponds to this reference. 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i; 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i = 0; i < objects.length; i++) { 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (refs[i] == ref) { 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == objects.length) { 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Test failed: " + 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "unexpected ref on queue"); 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (objects[i] != null) { 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Test failed: " + 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "reference enqueued for strongly-reachable " + 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "object"); 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refs[i] = null; 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* TODO: clear doesn't do much, since we're losing the 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * strong ref to the ref object anyway. move the ref 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * into another list. 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ref.clear(); 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* We've visited all of the enqueued references. 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make sure that there aren't any other references 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that should have been enqueued. 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * NOTE: there is a race condition here; this assumes 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that the VM has serviced all outstanding reference 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * enqueue() calls. 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i++) { 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (objects[i] == null && refs[i] != null) { 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// System.out.println("HeapTest/PhantomRefs: refs[" + i + 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// "] should be enqueued"); 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ok = false; 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!ok) { 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Test failed: " + 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "phantom refs not enqueued"); 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @MediumTest 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void testPhantomRefs() throws Exception { 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int NUM_REFS = 16; 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object objects[] = new Object[NUM_REFS]; 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PhantomReference<Object> refs[] = new PhantomReference[objects.length]; 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ReferenceQueue<Object> queue = new ReferenceQueue<Object>(); 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Create a bunch of objects and a parallel array 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of PhantomReferences. 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project makeRefs(objects, refs, queue); 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().gc(); 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRefs(objects, refs, queue); 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Clear out every other strong reference. 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i += 2) { 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[i] = null; 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // System.out.println("HeapTest/PhantomRefs: cleared evens"); 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().gc(); 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().runFinalization(); 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRefs(objects, refs, queue); 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Clear out the rest of them. 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i++) { 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[i] = null; 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // System.out.println("HeapTest/PhantomRefs: cleared all"); 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().gc(); 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().runFinalization(); 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRefs(objects, refs, queue); 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static int sNumFinalized = 0; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final Object sLock = new Object(); 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static class FinalizableObject { 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void finalize() { 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // System.out.println("gc from finalize()"); 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().gc(); 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized (sLock) { 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sNumFinalized++; 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void makeRefs(FinalizableObject objects[], 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project WeakReference<FinalizableObject> refs[]) { 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i++) { 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[i] = new FinalizableObject(); 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refs[i] = new WeakReference<FinalizableObject>(objects[i]); 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @LargeTest 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void testWeakRefsAndFinalizers() throws Exception { 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int NUM_REFS = 16; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project FinalizableObject objects[] = new FinalizableObject[NUM_REFS]; 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project WeakReference<FinalizableObject> refs[] = new WeakReference[objects.length]; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int numCleared; 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Create a bunch of objects and a parallel array 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of WeakReferences. 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project makeRefs(objects, refs); 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().gc(); 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRefs(objects, refs); 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Clear out every other strong reference. 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sNumFinalized = 0; 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project numCleared = 0; 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i += 2) { 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[i] = null; 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project numCleared++; 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // System.out.println("HeapTest/WeakRefsAndFinalizers: cleared evens"); 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().gc(); 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().runFinalization(); 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRefs(objects, refs); 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sNumFinalized != numCleared) { 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Test failed: " + 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "expected " + numCleared + " finalizations, saw " + 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sNumFinalized); 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Clear out the rest of them. 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sNumFinalized = 0; 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project numCleared = 0; 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < objects.length; i++) { 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (objects[i] != null) { 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objects[i] = null; 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project numCleared++; 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // System.out.println("HeapTest/WeakRefsAndFinalizers: cleared all"); 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().gc(); 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runtime.getRuntime().runFinalization(); 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRefs(objects, refs); 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sNumFinalized != numCleared) { 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Test failed: " + 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "expected " + numCleared + " finalizations, saw " + 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sNumFinalized); 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 421b8a4e5f79a33222d2ab03da7549b0a9a37da2001Brett Chabot // TODO: flaky test 422b8a4e5f79a33222d2ab03da7549b0a9a37da2001Brett Chabot //@MediumTest 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void testOomeLarge() throws Exception { 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Just shy of the typical max heap size so that it will actually 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * try to allocate it instead of short-circuiting. 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int SIXTEEN_MB = (16 * 1024 * 1024 - 32); 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Boolean sawEx = false; 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project byte a[]; 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a = new byte[SIXTEEN_MB]; 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (OutOfMemoryError oom) { 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //Log.i(TAG, "HeapTest/OomeLarge caught " + oom); 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sawEx = true; 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!sawEx) { 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Test failed: " + 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "OutOfMemoryError not thrown"); 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //See bug 1308253 for reasons. 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Suppress 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void disableTestOomeSmall() throws Exception { 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int SIXTEEN_MB = (16 * 1024 * 1024); 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int LINK_SIZE = 6 * 4; // estimated size of a LinkedList's node 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Boolean sawEx = false; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LinkedList<Object> list = new LinkedList<Object>(); 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Allocate progressively smaller objects to fill up the entire heap. 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int objSize = 1 * 1024 * 1024; 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (objSize >= LINK_SIZE) { 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < SIXTEEN_MB / objSize; i++) { 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project list.add((Object)new byte[objSize]); 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (OutOfMemoryError oom) { 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sawEx = true; 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!sawEx) { 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Test failed: " + 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "OutOfMemoryError not thrown while filling heap"); 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sawEx = false; 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project objSize = (objSize * 4) / 5; 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 477