StrictMode.java revision 097fbf2e98e0d32baf6cbd1a5659c4145afb191f
1438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick/* 2438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * Copyright (C) 2010 The Android Open Source Project 3438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 4438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * Licensed under the Apache License, Version 2.0 (the "License"); 5438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * you may not use this file except in compliance with the License. 6438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * You may obtain a copy of the License at 7438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 8438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * http://www.apache.org/licenses/LICENSE-2.0 9438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 10438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * Unless required by applicable law or agreed to in writing, software 11438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * distributed under the License is distributed on an "AS IS" BASIS, 12438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * See the License for the specific language governing permissions and 14438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * limitations under the License. 15438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 16438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickpackage android.os; 17438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 18599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrickimport android.animation.ValueAnimator; 19438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickimport android.app.ActivityManagerNative; 20bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrickimport android.app.ActivityThread; 21438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickimport android.app.ApplicationErrorReport; 221065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrickimport android.app.IActivityManager; 23d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkeyimport android.content.BroadcastReceiver; 24d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkeyimport android.content.Context; 25bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrickimport android.content.Intent; 26d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkeyimport android.content.ServiceConnection; 27438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickimport android.util.Log; 28cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrickimport android.util.Printer; 29cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrickimport android.util.Singleton; 306804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrickimport android.view.IWindowManager; 31438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 32438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickimport com.android.internal.os.RuntimeInit; 33438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 34438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickimport dalvik.system.BlockGuard; 35fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstromimport dalvik.system.CloseGuard; 36bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrickimport dalvik.system.VMDebug; 37438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 385b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrickimport java.io.PrintWriter; 395b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrickimport java.io.StringWriter; 405b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrickimport java.util.ArrayList; 4146d42387464a651268648659e91d022566d4844cBrad Fitzpatrickimport java.util.HashMap; 425f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrickimport java.util.Map; 43bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrickimport java.util.concurrent.atomic.AtomicInteger; 4446d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 45438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick/** 4632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>StrictMode is a developer tool which detects things you might be 4732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * doing by accident and brings them to your attention so you can fix 4832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * them. 4915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 5015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p>StrictMode is most commonly used to catch accidental disk or 5115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * network access on the application's main thread, where UI 5215ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * operations are received and animations take place. Keeping disk 5315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * and network operations off the main thread makes for much smoother, 549fc2fc5757a3d28d098bd2b0ad0f869a3cf3fa14Brad Fitzpatrick * more responsive applications. By keeping your application's main thread 559fc2fc5757a3d28d098bd2b0ad0f869a3cf3fa14Brad Fitzpatrick * responsive, you also prevent 569fc2fc5757a3d28d098bd2b0ad0f869a3cf3fa14Brad Fitzpatrick * <a href="{@docRoot}guide/practices/design/responsiveness.html">ANR dialogs</a> 579fc2fc5757a3d28d098bd2b0ad0f869a3cf3fa14Brad Fitzpatrick * from being shown to users. 5815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 5915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p class="note">Note that even though an Android device's disk is 6015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * often on flash memory, many devices run a filesystem on top of that 6115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * memory with very limited concurrency. It's often the case that 6215ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * almost all disk accesses are fast, but may in individual cases be 6315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * dramatically slower when certain I/O is happening in the background 6415ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * from other processes. If possible, it's best to assume that such 6515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * things are not fast.</p> 6615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 6715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p>Example code to enable from early in your 6815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * {@link android.app.Application}, {@link android.app.Activity}, or 6915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * other application component's 7015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * {@link android.app.Application#onCreate} method: 7115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 7215ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <pre> 7315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * public void onCreate() { 7415ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * if (DEVELOPER_MODE) { 7532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.setThreadPolicy(new {@link ThreadPolicy.Builder StrictMode.ThreadPolicy.Builder}() 7632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectDiskReads() 7732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectDiskWrites() 7832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectNetwork() // or .detectAll() for all detectable problems 7932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 8032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build()); 8132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.setVmPolicy(new {@link VmPolicy.Builder StrictMode.VmPolicy.Builder}() 8262a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * .detectLeakedSqlLiteObjects() 83fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * .detectLeakedClosableObjects() 8432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 8532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyDeath() 8632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build()); 8715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * } 8815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * super.onCreate(); 8915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * } 9015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * </pre> 9115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 9232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You can decide what should happen when a violation is detected. 9332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * For example, using {@link ThreadPolicy.Builder#penaltyLog} you can 9432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * watch the output of <code>adb logcat</code> while you use your 9532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * application to see the violations as they happen. 9615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 9715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p>If you find violations that you feel are problematic, there are 9815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * a variety of tools to help solve them: threads, {@link android.os.Handler}, 9915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * {@link android.os.AsyncTask}, {@link android.app.IntentService}, etc. 10015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * But don't feel compelled to fix everything that StrictMode finds. In particular, 10132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * many cases of disk access are often necessary during the normal activity lifecycle. Use 10232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode to find things you did by accident. Network requests on the UI thread 10315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * are almost always a problem, though. 10415ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 10515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p class="note">StrictMode is not a security mechanism and is not 10615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * guaranteed to find all disk or network accesses. While it does 10715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * propagate its state across process boundaries when doing 10815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * {@link android.os.Binder} calls, it's still ultimately a best 10915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * effort mechanism. Notably, disk or network access from JNI calls 11015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * won't necessarily trigger it. Future versions of Android may catch 11115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * more (or fewer) operations, so you should never leave StrictMode 1124d7bc65538c7cd9fbb1fbbcf22d1da47fcee1219Dirk Dougherty * enabled in applications distributed on Google Play. 113438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 114438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickpublic final class StrictMode { 115438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick private static final String TAG = "StrictMode"; 11682829ef3b7c72bee36d8c17b36ac565f1856a310Brad Fitzpatrick private static final boolean LOG_V = Log.isLoggable(TAG, Log.VERBOSE); 117438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1181181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick private static final boolean IS_USER_BUILD = "user".equals(Build.TYPE); 1196804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick private static final boolean IS_ENG_BUILD = "eng".equals(Build.TYPE); 1201181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick 121c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick /** 122bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate * Boolean system property to disable strict mode checks outright. 123bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate * Set this to 'true' to force disable; 'false' has no effect on other 124bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate * enable/disable policy. 125bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate * @hide 126bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate */ 127bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate public static final String DISABLE_PROPERTY = "persist.sys.strictmode.disable"; 128bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate 129bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate /** 130c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick * The boolean system property to control screen flashes on violations. 131c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick * 132c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick * @hide 133c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick */ 134c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick public static final String VISUAL_PROPERTY = "persist.sys.strictmode.visual"; 135c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 13646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Only log a duplicate stack trace to the logs every second. 13746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick private static final long MIN_LOG_INTERVAL_MS = 1000; 13846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 13946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Only show an annoying dialog at most every 30 seconds 14046d42387464a651268648659e91d022566d4844cBrad Fitzpatrick private static final long MIN_DIALOG_INTERVAL_MS = 30000; 14146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 142e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // How many Span tags (e.g. animations) to report. 143e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private static final int MAX_SPAN_TAGS = 20; 144e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 145191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick // How many offending stacks to keep track of (and time) per loop 146191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick // of the Looper. 147191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick private static final int MAX_OFFENSES_PER_LOOP = 10; 148191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick 14932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // Thread-policy: 150438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 15115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick /** 15232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 15315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick */ 15432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final int DETECT_DISK_WRITE = 0x01; // for ThreadPolicy 15515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick 15615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick /** 15732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 15815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick */ 15932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final int DETECT_DISK_READ = 0x02; // for ThreadPolicy 16015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick 16115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick /** 16232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 16315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick */ 16432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final int DETECT_NETWORK = 0x04; // for ThreadPolicy 165438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 166e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick /** 167e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * For StrictMode.noteSlowCall() 168e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * 169e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * @hide 170e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick */ 171e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public static final int DETECT_CUSTOM = 0x08; // for ThreadPolicy 172e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 173e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick private static final int ALL_THREAD_DETECT_BITS = 174e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick DETECT_DISK_WRITE | DETECT_DISK_READ | DETECT_NETWORK | DETECT_CUSTOM; 175e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 17632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // Process-policy: 177438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 178438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 17932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Note, a "VM_" bit, not thread. 18032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 18132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 182758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public static final int DETECT_VM_CURSOR_LEAKS = 0x200; // for VmPolicy 18332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 18432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 185fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * Note, a "VM_" bit, not thread. 186fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * @hide 187fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom */ 188758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public static final int DETECT_VM_CLOSABLE_LEAKS = 0x400; // for VmPolicy 189758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 190758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick /** 191758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * Note, a "VM_" bit, not thread. 192758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * @hide 193758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick */ 194758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public static final int DETECT_VM_ACTIVITY_LEAKS = 0x800; // for VmPolicy 195fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom 196fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom /** 19732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 198438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 199bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static final int DETECT_VM_INSTANCE_LEAKS = 0x1000; // for VmPolicy 200bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 201d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey /** 202d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey * @hide 203d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey */ 204d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey public static final int DETECT_VM_REGISTRATION_LEAKS = 0x2000; // for VmPolicy 205d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey 206bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static final int ALL_VM_DETECT_BITS = 207bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick DETECT_VM_CURSOR_LEAKS | DETECT_VM_CLOSABLE_LEAKS | 208d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey DETECT_VM_ACTIVITY_LEAKS | DETECT_VM_INSTANCE_LEAKS | 209d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey DETECT_VM_REGISTRATION_LEAKS; 210bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 211bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick /** 212bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * @hide 213bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick */ 214438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public static final int PENALTY_LOG = 0x10; // normal android.util.Log 215438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 21632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // Used for both process and thread policy: 21732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 218438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 21932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 220438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 221438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public static final int PENALTY_DIALOG = 0x20; 222438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 223438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 224b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * Death on any detected violation. 225b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * 22632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 227438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 228438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public static final int PENALTY_DEATH = 0x40; 229438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 230438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 231b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * Death just for detected network usage. 232b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * 233b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * @hide 234b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick */ 235b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick public static final int PENALTY_DEATH_ON_NETWORK = 0x200; 236b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick 237b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick /** 2386804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick * Flash the screen during violations. 2396804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick * 2406804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick * @hide 2416804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick */ 2426804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick public static final int PENALTY_FLASH = 0x800; 2436804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick 2446804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick /** 24532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 246438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 247438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public static final int PENALTY_DROPBOX = 0x80; 248438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 249727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick /** 250727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * Non-public penalty mode which overrides all the other penalty 251727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * bits and signals that we're in a Binder call and we should 252727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * ignore the other penalty bits and instead serialize back all 253727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * our offending stack traces to the caller to ultimately handle 254727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * in the originating process. 255727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * 256703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * This must be kept in sync with the constant in libs/binder/Parcel.cpp 257703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * 258727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * @hide 259727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick */ 260727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick public static final int PENALTY_GATHER = 0x100; 261727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 26232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 263c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick * Mask of all the penalty bits valid for thread policies. 26471678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick */ 265c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick private static final int THREAD_PENALTY_MASK = 266b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick PENALTY_LOG | PENALTY_DIALOG | PENALTY_DEATH | PENALTY_DROPBOX | PENALTY_GATHER | 2676804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick PENALTY_DEATH_ON_NETWORK | PENALTY_FLASH; 26871678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick 269758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 270c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick /** 271c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick * Mask of all the penalty bits valid for VM policies. 272c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick */ 273c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick private static final int VM_PENALTY_MASK = 274c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick PENALTY_LOG | PENALTY_DEATH | PENALTY_DROPBOX; 275c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick 276c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick 277758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick // TODO: wrap in some ImmutableHashMap thing. 278758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick // Note: must be before static initialization of sVmPolicy. 279758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private static final HashMap<Class, Integer> EMPTY_CLASS_LIMIT_MAP = new HashMap<Class, Integer>(); 280758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 28171678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick /** 28232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * The current VmPolicy in effect. 283758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * 284758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * TODO: these are redundant (mask is in VmPolicy). Should remove sVmPolicyMask. 28532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 28632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private static volatile int sVmPolicyMask = 0; 287758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private static volatile VmPolicy sVmPolicy = VmPolicy.LAX; 28832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 289bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick /** 290bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * The number of threads trying to do an async dropbox write. 291bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * Just to limit ourselves out of paranoia. 292bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick */ 293bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick private static final AtomicInteger sDropboxCallsInFlight = new AtomicInteger(0); 294bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 29532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private StrictMode() {} 29632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 29732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 29832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link StrictMode} policy applied to a certain thread. 29932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 30032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>The policy is enabled by {@link #setThreadPolicy}. The current policy 30132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * can be retrieved with {@link #getThreadPolicy}. 30232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 30332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Note that multiple penalties may be provided and they're run 30432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * in order from least to most severe (logging before process 30532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * death, for example). There's currently no mechanism to choose 30632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * different penalties for different detected actions. 30732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 30832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class ThreadPolicy { 30932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 31032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * The default, lax policy which doesn't catch anything. 31132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 31232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final ThreadPolicy LAX = new ThreadPolicy(0); 31332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 31432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int mask; 31532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 31632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private ThreadPolicy(int mask) { 31732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick this.mask = mask; 31832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 31932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 32032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick @Override 32132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public String toString() { 32232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return "[StrictMode.ThreadPolicy; mask=" + mask + "]"; 32332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 32432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 32532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 326320274c5f17057a3a823fed50b7027cbd46fc025Brad Fitzpatrick * Creates {@link ThreadPolicy} instances. Methods whose names start 32732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@code detect} specify what problems we should look 32832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * for. Methods whose names start with {@code penalty} specify what 32932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * we should do when we detect a problem. 33032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 33132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You can call as many {@code detect} and {@code penalty} 33232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * methods as you like. Currently order is insignificant: all 33332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * penalties apply to all detected problems. 33432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 33532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>For example, detect everything and log anything that's found: 33632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <pre> 337320274c5f17057a3a823fed50b7027cbd46fc025Brad Fitzpatrick * StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder() 33832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectAll() 33932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 34032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build(); 341320274c5f17057a3a823fed50b7027cbd46fc025Brad Fitzpatrick * StrictMode.setThreadPolicy(policy); 34232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * </pre> 34332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 34432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class Builder { 34532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private int mMask = 0; 34632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 34732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 34832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Create a Builder that detects nothing and has no 34932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violations. (but note that {@link #build} will default 35032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to enabling {@link #penaltyLog} if no other penalties 35132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * are specified) 35232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 35332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder() { 35432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask = 0; 35532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 35632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 35732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 35832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Initialize a Builder from an existing ThreadPolicy. 35932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 36032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder(ThreadPolicy policy) { 36132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask = policy.mask; 36232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 36332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 36432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 36532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Detect everything that's potentially suspect. 36632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 36732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>As of the Gingerbread release this includes network and 36832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * disk operations but will likely expand in future releases. 36932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 37032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectAll() { 371e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return enable(ALL_THREAD_DETECT_BITS); 37232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 37332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 37432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 37532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable the detection of everything. 37632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 37732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitAll() { 378e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return disable(ALL_THREAD_DETECT_BITS); 37932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 38032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 38132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 38232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detection of network operations. 38332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 38432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectNetwork() { 38532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_NETWORK); 38632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 38732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 38832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 38932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable detection of network operations. 39032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 39132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitNetwork() { 39232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return disable(DETECT_NETWORK); 39332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 39432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 39532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 39632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detection of disk reads. 39732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 39832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectDiskReads() { 39932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_DISK_READ); 40032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 40132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 40232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 40332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable detection of disk reads. 40432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 40532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitDiskReads() { 40632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return disable(DETECT_DISK_READ); 40732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 40832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 40932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 410097fbf2e98e0d32baf6cbd1a5659c4145afb191fQi Wang * Enable detection of slow calls. 411e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick */ 412e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public Builder detectCustomSlowCalls() { 413e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return enable(DETECT_CUSTOM); 414e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 415e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 416e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick /** 417097fbf2e98e0d32baf6cbd1a5659c4145afb191fQi Wang * Disable detection of slow calls. 418e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick */ 419e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public Builder permitCustomSlowCalls() { 420097fbf2e98e0d32baf6cbd1a5659c4145afb191fQi Wang return disable(DETECT_CUSTOM); 421e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 422e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 423e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick /** 42432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detection of disk writes. 42532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 42632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectDiskWrites() { 42732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_DISK_WRITE); 42832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 42932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 43032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 43132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable detection of disk writes. 43232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 43332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitDiskWrites() { 43432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return disable(DETECT_DISK_WRITE); 43532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 43632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 43732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 43832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Show an annoying dialog to the developer on detected 43932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violations, rate-limited to be only a little annoying. 44032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 44132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDialog() { 44232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DIALOG); 44332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 44432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 44532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 44632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Crash the whole process on violation. This penalty runs at 44732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * the end of all enabled penalties so you'll still get 44832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * see logging or other violations before the process dies. 449b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * 450b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * <p>Unlike {@link #penaltyDeathOnNetwork}, this applies 451b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * to disk reads, disk writes, and network usage if their 452b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * corresponding detect flags are set. 45332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 45432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDeath() { 45532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DEATH); 45632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 45732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 45832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 459b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * Crash the whole process on any network usage. Unlike 460b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * {@link #penaltyDeath}, this penalty runs 461b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * <em>before</em> anything else. You must still have 462b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * called {@link #detectNetwork} to enable this. 463b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * 464b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * <p>In the Honeycomb or later SDKs, this is on by default. 465b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick */ 466b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick public Builder penaltyDeathOnNetwork() { 467b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick return enable(PENALTY_DEATH_ON_NETWORK); 468b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick } 469b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick 470b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick /** 4716804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick * Flash the screen during a violation. 4726804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick */ 4736804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick public Builder penaltyFlashScreen() { 4746804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick return enable(PENALTY_FLASH); 4756804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick } 4766804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick 4776804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick /** 47832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Log detected violations to the system log. 47932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 48032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyLog() { 48132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_LOG); 48232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 48332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 48432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 48532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detected violations log a stacktrace and timing data 48632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to the {@link android.os.DropBoxManager DropBox} on policy 48732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violation. Intended mostly for platform integrators doing 48832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * beta user field data collection. 48932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 49032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDropBox() { 49132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DROPBOX); 49232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 49332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 49432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private Builder enable(int bit) { 49532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask |= bit; 49632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return this; 49732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 49832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 49932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private Builder disable(int bit) { 50032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask &= ~bit; 50132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return this; 50232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 50332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 50432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 50532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Construct the ThreadPolicy instance. 50632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 50732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Note: if no penalties are enabled before calling 50832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <code>build</code>, {@link #penaltyLog} is implicitly 50932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * set. 51032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 51132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public ThreadPolicy build() { 51232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // If there are detection bits set but no violation bits 51332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // set, enable simple logging. 51432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (mMask != 0 && 51532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick (mMask & (PENALTY_DEATH | PENALTY_LOG | 51632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick PENALTY_DROPBOX | PENALTY_DIALOG)) == 0) { 51732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick penaltyLog(); 51832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 51932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(mMask); 52032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 52132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 52232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 52332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 52432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 52532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link StrictMode} policy applied to all threads in the virtual machine's process. 52632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 52732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>The policy is enabled by {@link #setVmPolicy}. 52832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 52932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class VmPolicy { 53032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 53132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * The default, lax policy which doesn't catch anything. 53232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 533758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public static final VmPolicy LAX = new VmPolicy(0, EMPTY_CLASS_LIMIT_MAP); 53432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 53532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int mask; 53632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 537758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick // Map from class to max number of allowed instances in memory. 538758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick final HashMap<Class, Integer> classInstanceLimit; 539758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 540758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private VmPolicy(int mask, HashMap<Class, Integer> classInstanceLimit) { 541758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if (classInstanceLimit == null) { 542758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick throw new NullPointerException("classInstanceLimit == null"); 543758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 54432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick this.mask = mask; 545758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick this.classInstanceLimit = classInstanceLimit; 54632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 54732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 54832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick @Override 54932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public String toString() { 55032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return "[StrictMode.VmPolicy; mask=" + mask + "]"; 55132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 55232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 55332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 55432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Creates {@link VmPolicy} instances. Methods whose names start 55532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@code detect} specify what problems we should look 55632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * for. Methods whose names start with {@code penalty} specify what 55732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * we should do when we detect a problem. 55832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 55932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You can call as many {@code detect} and {@code penalty} 56032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * methods as you like. Currently order is insignificant: all 56132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * penalties apply to all detected problems. 56232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 56332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>For example, detect everything and log anything that's found: 56432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <pre> 56532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.VmPolicy policy = new StrictMode.VmPolicy.Builder() 56632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectAll() 56732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 56832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build(); 56932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.setVmPolicy(policy); 57032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * </pre> 57132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 57232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class Builder { 57332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private int mMask; 57432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 575758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private HashMap<Class, Integer> mClassInstanceLimit; // null until needed 576758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private boolean mClassInstanceLimitNeedCow = false; // need copy-on-write 577758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 578758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public Builder() { 579758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mMask = 0; 580758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 581758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 582758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick /** 583758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * Build upon an existing VmPolicy. 584758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick */ 585758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public Builder(VmPolicy base) { 586758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mMask = base.mask; 587758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimitNeedCow = true; 588758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit = base.classInstanceLimit; 589758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 590758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 591758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick /** 592758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * Set an upper bound on how many instances of a class can be in memory 593758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * at once. Helps to prevent object leaks. 594758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick */ 595758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public Builder setClassInstanceLimit(Class klass, int instanceLimit) { 596758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if (klass == null) { 597758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick throw new NullPointerException("klass == null"); 598758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 599758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if (mClassInstanceLimitNeedCow) { 600758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if (mClassInstanceLimit.containsKey(klass) && 601758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit.get(klass) == instanceLimit) { 602758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick // no-op; don't break COW 603758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return this; 604758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 605758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimitNeedCow = false; 606758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit = (HashMap<Class, Integer>) mClassInstanceLimit.clone(); 607758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } else if (mClassInstanceLimit == null) { 608758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit = new HashMap<Class, Integer>(); 609758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 610bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mMask |= DETECT_VM_INSTANCE_LEAKS; 611758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit.put(klass, instanceLimit); 612758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return this; 613758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 614758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 615bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick /** 616bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * Detect leaks of {@link android.app.Activity} subclasses. 617bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick */ 618bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public Builder detectActivityLeaks() { 619758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return enable(DETECT_VM_ACTIVITY_LEAKS); 620758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 621758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 62232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 62332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Detect everything that's potentially suspect. 62432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 625fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * <p>In the Honeycomb release this includes leaks of 626bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * SQLite cursors, Activities, and other closable objects 627bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * but will likely expand in future releases. 62832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 62932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectAll() { 630d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey return enable(DETECT_VM_ACTIVITY_LEAKS | DETECT_VM_CURSOR_LEAKS 631d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey | DETECT_VM_CLOSABLE_LEAKS | DETECT_VM_REGISTRATION_LEAKS); 63232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 63332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 63432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 63532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Detect when an 63632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link android.database.sqlite.SQLiteCursor} or other 63732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * SQLite object is finalized without having been closed. 63832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 63932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You always want to explicitly close your SQLite 64032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * cursors to avoid unnecessary database contention and 64132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * temporary memory leaks. 64232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 64332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectLeakedSqlLiteObjects() { 64432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_VM_CURSOR_LEAKS); 64532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 64632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 64732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 648fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * Detect when an {@link java.io.Closeable} or other 649fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * object with a explict termination method is finalized 650fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * without having been closed. 651fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * 652fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * <p>You always want to explicitly close such objects to 653fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * avoid unnecessary resources leaks. 654fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom */ 655fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom public Builder detectLeakedClosableObjects() { 656fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom return enable(DETECT_VM_CLOSABLE_LEAKS); 657fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom } 658fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom 659fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom /** 660d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey * Detect when a {@link BroadcastReceiver} or 661d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey * {@link ServiceConnection} is leaked during {@link Context} 662d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey * teardown. 663d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey */ 664d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey public Builder detectLeakedRegistrationObjects() { 665d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey return enable(DETECT_VM_REGISTRATION_LEAKS); 666d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey } 667d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey 668d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey /** 66932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Crashes the whole process on violation. This penalty runs at 67032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * the end of all enabled penalties so yo you'll still get 67132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * your logging or other violations before the process dies. 67232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 67332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDeath() { 67432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DEATH); 67532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 67632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 67732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 67832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Log detected violations to the system log. 67932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 68032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyLog() { 68132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_LOG); 68232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 68332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 68432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 68532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detected violations log a stacktrace and timing data 68632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to the {@link android.os.DropBoxManager DropBox} on policy 68732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violation. Intended mostly for platform integrators doing 68832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * beta user field data collection. 68932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 69032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDropBox() { 69132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DROPBOX); 69232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 69332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 69432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private Builder enable(int bit) { 69532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask |= bit; 69632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return this; 69732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 69832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 69932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 70032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Construct the VmPolicy instance. 70132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 70232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Note: if no penalties are enabled before calling 70332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <code>build</code>, {@link #penaltyLog} is implicitly 70432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * set. 70532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 70632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public VmPolicy build() { 70732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // If there are detection bits set but no violation bits 70832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // set, enable simple logging. 70932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (mMask != 0 && 71032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick (mMask & (PENALTY_DEATH | PENALTY_LOG | 71132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick PENALTY_DROPBOX | PENALTY_DIALOG)) == 0) { 71232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick penaltyLog(); 71332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 714758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return new VmPolicy(mMask, 715758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit != null ? mClassInstanceLimit : EMPTY_CLASS_LIMIT_MAP); 71632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 71732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 71832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 719438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 720438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 7215b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Log of strict mode violation stack traces that have occurred 7225b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * during a Binder call, to be serialized back later to the caller 7235b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * via Parcel.writeNoException() (amusingly) where the caller can 7245b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * choose how to react. 7255b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 726cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick private static final ThreadLocal<ArrayList<ViolationInfo>> gatheredViolations = 727cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick new ThreadLocal<ArrayList<ViolationInfo>>() { 728cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick @Override protected ArrayList<ViolationInfo> initialValue() { 729703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick // Starts null to avoid unnecessary allocations when 730703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick // checking whether there are any violations or not in 731703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick // hasGatheredViolations() below. 732703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick return null; 7335b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7345b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick }; 7355b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 7365b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 73732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Sets the policy for what actions on the current thread should 73832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * be detected, as well as the penalty if such actions occur. 73915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 74032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Internally this sets a thread-local variable which is 74115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * propagated across cross-process IPC calls, meaning you can 74215ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * catch violations when a system service or another process 74315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * accesses the disk or network on your behalf. 744438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 74532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @param policy the policy to put into place 746438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 74732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static void setThreadPolicy(final ThreadPolicy policy) { 74832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(policy.mask); 74932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 75032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 75132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private static void setThreadPolicyMask(final int policyMask) { 752727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // In addition to the Java-level thread-local in Dalvik's 753727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // BlockGuard, we also need to keep a native thread-local in 754727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // Binder in order to propagate the value across Binder calls, 755727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // even across native-only processes. The two are kept in 756727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // sync via the callback to onStrictModePolicyChange, below. 757727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick setBlockGuardPolicy(policyMask); 758727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 759727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // And set the Android native version... 760727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick Binder.setThreadStrictModePolicy(policyMask); 761727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } 762727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 763727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // Sets the policy in Dalvik/libcore (BlockGuard) 764727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick private static void setBlockGuardPolicy(final int policyMask) { 76546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick if (policyMask == 0) { 76646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick BlockGuard.setThreadPolicy(BlockGuard.LAX_POLICY); 76746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick return; 76846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 769438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 770438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick if (!(policy instanceof AndroidBlockGuardPolicy)) { 771438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick BlockGuard.setThreadPolicy(new AndroidBlockGuardPolicy(policyMask)); 772438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } else { 773438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick AndroidBlockGuardPolicy androidPolicy = (AndroidBlockGuardPolicy) policy; 774438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick androidPolicy.setPolicyMask(policyMask); 775438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 776438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 777438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 7784b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom // Sets up CloseGuard in Dalvik/libcore 7794b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom private static void setCloseGuardEnabled(boolean enabled) { 7807c2ae6570321575ad74a25bdc72bea1ec6558660Brad Fitzpatrick if (!(CloseGuard.getReporter() instanceof AndroidCloseGuardReporter)) { 7814b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom CloseGuard.setReporter(new AndroidCloseGuardReporter()); 7824b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 7834b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom CloseGuard.setEnabled(enabled); 7844b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 7854b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom 7864e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 7874e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 7884e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 7894e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public static class StrictModeViolation extends BlockGuard.BlockGuardPolicyException { 7904e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public StrictModeViolation(int policyState, int policyViolated, String message) { 7914e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick super(policyState, policyViolated, message); 7924e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 7934e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 7944e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick 7954e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 7964e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 7974e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 7984e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public static class StrictModeNetworkViolation extends StrictModeViolation { 7995b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public StrictModeNetworkViolation(int policyMask) { 8004e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick super(policyMask, DETECT_NETWORK, null); 8015b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 8025b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 8035b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 8044e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 8054e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 8064e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 8074e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick private static class StrictModeDiskReadViolation extends StrictModeViolation { 8085b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public StrictModeDiskReadViolation(int policyMask) { 8094e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick super(policyMask, DETECT_DISK_READ, null); 8105b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 8115b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 8125b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 8134e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 8144e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 8154e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 8164e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick private static class StrictModeDiskWriteViolation extends StrictModeViolation { 8175b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public StrictModeDiskWriteViolation(int policyMask) { 8184e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick super(policyMask, DETECT_DISK_WRITE, null); 8195b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 8205b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 8215b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 8224e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 8234e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 8244e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 8254e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick private static class StrictModeCustomViolation extends StrictModeViolation { 826e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public StrictModeCustomViolation(int policyMask, String name) { 827e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick super(policyMask, DETECT_CUSTOM, name); 828e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 829e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 830e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 831438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 83215ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * Returns the bitmask of the current thread's policy. 833438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 83432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @return the bitmask of all the DETECT_* and PENALTY_* bits currently enabled 83532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 83632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 837438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 83832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static int getThreadPolicyMask() { 839438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return BlockGuard.getThreadPolicy().getPolicyMask(); 840438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 841438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 8425b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 84332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Returns the current thread's policy. 84432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 84532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static ThreadPolicy getThreadPolicy() { 846e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // TODO: this was a last minute Gingerbread API change (to 847e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // introduce VmPolicy cleanly) but this isn't particularly 848e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // optimal for users who might call this method often. This 849e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // should be in a thread-local and not allocate on each call. 85032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(getThreadPolicyMask()); 85132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 85232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 85332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 85432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * A convenience wrapper that takes the current 85532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link ThreadPolicy} from {@link #getThreadPolicy}, modifies it 85632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to permit both disk reads & writes, and sets the new policy 85732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@link #setThreadPolicy}, returning the old policy so you 85832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * can restore it at the end of a block. 85997461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick * 86032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @return the old policy, to be passed to {@link #setThreadPolicy} to 86132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * restore the policy at the end of a block 86297461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick */ 86332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static ThreadPolicy allowThreadDiskWrites() { 86432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int oldPolicyMask = getThreadPolicyMask(); 86532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int newPolicyMask = oldPolicyMask & ~(DETECT_DISK_WRITE | DETECT_DISK_READ); 86632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (newPolicyMask != oldPolicyMask) { 86732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(newPolicyMask); 86897461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 86932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(oldPolicyMask); 87097461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 87197461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick 87297461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick /** 87332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * A convenience wrapper that takes the current 87432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link ThreadPolicy} from {@link #getThreadPolicy}, modifies it 87532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to permit disk reads, and sets the new policy 87632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@link #setThreadPolicy}, returning the old policy so you 87732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * can restore it at the end of a block. 87897461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick * 87932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @return the old policy, to be passed to setThreadPolicy to 88097461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick * restore the policy. 88197461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick */ 88232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static ThreadPolicy allowThreadDiskReads() { 88332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int oldPolicyMask = getThreadPolicyMask(); 88432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int newPolicyMask = oldPolicyMask & ~(DETECT_DISK_READ); 88532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (newPolicyMask != oldPolicyMask) { 88632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(newPolicyMask); 88797461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 88832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(oldPolicyMask); 88997461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 89097461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick 891f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // We don't want to flash the screen red in the system server 892f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // process, nor do we want to modify all the call sites of 893f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // conditionallyEnableDebugLogging() in the system server, 894f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // so instead we use this to determine if we are the system server. 895f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick private static boolean amTheSystemServerProcess() { 896f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // Fast path. Most apps don't have the system server's UID. 897f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick if (Process.myUid() != Process.SYSTEM_UID) { 898f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick return false; 899f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick } 900f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick 901f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // The settings app, though, has the system server's UID so 902f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // look up our stack to see if we came from the system server. 903f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick Throwable stack = new Throwable(); 904f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick stack.fillInStackTrace(); 905f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick for (StackTraceElement ste : stack.getStackTrace()) { 906f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick String clsName = ste.getClassName(); 907f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick if (clsName != null && clsName.startsWith("com.android.server.")) { 908f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick return true; 909f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick } 910f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick } 911f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick return false; 912f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick } 913f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick 91497461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick /** 91550d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick * Enable DropBox logging for debug phone builds. 91650d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick * 91750d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick * @hide 91850d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick */ 91950d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick public static boolean conditionallyEnableDebugLogging() { 920bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate boolean doFlashes = SystemProperties.getBoolean(VISUAL_PROPERTY, false) 921bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate && !amTheSystemServerProcess(); 922bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate final boolean suppress = SystemProperties.getBoolean(DISABLE_PROPERTY, false); 923c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 92450d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick // For debug builds, log event loop stalls to dropbox for analysis. 92550d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick // Similar logic also appears in ActivityThread.java for system apps. 926bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate if (!doFlashes && (IS_USER_BUILD || suppress)) { 9277c2ae6570321575ad74a25bdc72bea1ec6558660Brad Fitzpatrick setCloseGuardEnabled(false); 92850d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick return false; 92950d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick } 930c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 931bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate // Eng builds have flashes on all the time. The suppression property 932bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate // overrides this, so we force the behavior only after the short-circuit 933bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate // check above. 934bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate if (IS_ENG_BUILD) { 935bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate doFlashes = true; 936bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate } 937bc6f0ce8be64a74b695fb21dab5f4805b68dce16Christopher Tate 938be7c29c9f7e3d7b75d4374c8b5c0ca43c9d09c68Jeff Brown // Thread policy controls BlockGuard. 939c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick int threadPolicyMask = StrictMode.DETECT_DISK_WRITE | 940c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick StrictMode.DETECT_DISK_READ | 941c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick StrictMode.DETECT_NETWORK; 942c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 943c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick if (!IS_USER_BUILD) { 944c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick threadPolicyMask |= StrictMode.PENALTY_DROPBOX; 945c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick } 946c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick if (doFlashes) { 947c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick threadPolicyMask |= StrictMode.PENALTY_FLASH; 948c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick } 949c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 950c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick StrictMode.setThreadPolicyMask(threadPolicyMask); 951c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 952be7c29c9f7e3d7b75d4374c8b5c0ca43c9d09c68Jeff Brown // VM Policy controls CloseGuard, detection of Activity leaks, 953be7c29c9f7e3d7b75d4374c8b5c0ca43c9d09c68Jeff Brown // and instance counting. 954c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick if (IS_USER_BUILD) { 955c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick setCloseGuardEnabled(false); 956c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick } else { 957d5875d98f06817f78bd974842a8a9c2d41802d20Jeff Brown VmPolicy.Builder policyBuilder = new VmPolicy.Builder().detectAll().penaltyDropBox(); 958d5875d98f06817f78bd974842a8a9c2d41802d20Jeff Brown if (IS_ENG_BUILD) { 959d5875d98f06817f78bd974842a8a9c2d41802d20Jeff Brown policyBuilder.penaltyLog(); 960d5875d98f06817f78bd974842a8a9c2d41802d20Jeff Brown } 961d5875d98f06817f78bd974842a8a9c2d41802d20Jeff Brown setVmPolicy(policyBuilder.build()); 962c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick setCloseGuardEnabled(vmClosableObjectLeaksEnabled()); 963c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick } 96450d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick return true; 96550d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick } 96650d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick 96750d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick /** 968b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * Used by the framework to make network usage on the main 969b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * thread a fatal error. 970b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * 971b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * @hide 972b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick */ 973b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick public static void enableDeathOnNetwork() { 974b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick int oldPolicy = getThreadPolicyMask(); 975b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick int newPolicy = oldPolicy | DETECT_NETWORK | PENALTY_DEATH_ON_NETWORK; 976b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick setThreadPolicyMask(newPolicy); 977b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick } 978b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick 979b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick /** 9805b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Parses the BlockGuard policy mask out from the Exception's 9815b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * getMessage() String value. Kinda gross, but least 9825b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * invasive. :/ 9835b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * 984e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * Input is of the following forms: 985e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * "policy=137 violation=64" 986e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * "policy=137 violation=64 msg=Arbitrary text" 9875b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * 9885b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Returns 0 on failure, which is a valid policy, but not a 9895b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * valid policy during a violation (else there must've been 9905b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * some policy in effect to violate). 9915b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 9925b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static int parsePolicyFromMessage(String message) { 9935b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (message == null || !message.startsWith("policy=")) { 9945b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9955b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9965b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick int spaceIndex = message.indexOf(' '); 9975b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (spaceIndex == -1) { 9985b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9995b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 10005b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick String policyString = message.substring(7, spaceIndex); 10015b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick try { 10025b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return Integer.valueOf(policyString).intValue(); 10035b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } catch (NumberFormatException e) { 10045b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 10055b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 10065b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 10075b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 10085b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 10095b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Like parsePolicyFromMessage(), but returns the violation. 10105b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 10115b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static int parseViolationFromMessage(String message) { 10125b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (message == null) { 10135b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 10145b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 10155b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick int violationIndex = message.indexOf("violation="); 10165b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (violationIndex == -1) { 10175b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 10185b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1019e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick int numberStartIndex = violationIndex + "violation=".length(); 1020e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick int numberEndIndex = message.indexOf(' ', numberStartIndex); 1021e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick if (numberEndIndex == -1) { 1022e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick numberEndIndex = message.length(); 1023e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1024e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick String violationString = message.substring(numberStartIndex, numberEndIndex); 10255b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick try { 10265b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return Integer.valueOf(violationString).intValue(); 10275b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } catch (NumberFormatException e) { 10285b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 10295b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 10305b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 10315b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 1032191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick private static final ThreadLocal<ArrayList<ViolationInfo>> violationsBeingTimed = 1033191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick new ThreadLocal<ArrayList<ViolationInfo>>() { 1034191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick @Override protected ArrayList<ViolationInfo> initialValue() { 1035191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return new ArrayList<ViolationInfo>(); 1036191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1037191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick }; 1038191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick 1039bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // Note: only access this once verifying the thread has a Looper. 1040bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick private static final ThreadLocal<Handler> threadHandler = new ThreadLocal<Handler>() { 1041bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick @Override protected Handler initialValue() { 1042bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick return new Handler(); 1043bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick } 1044bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick }; 1045bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick 1046191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick private static boolean tooManyViolationsThisLoop() { 1047191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return violationsBeingTimed.get().size() >= MAX_OFFENSES_PER_LOOP; 1048191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1049191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick 1050438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick private static class AndroidBlockGuardPolicy implements BlockGuard.Policy { 1051438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick private int mPolicyMask; 105246d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 105346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Map from violation stacktrace hashcode -> uptimeMillis of 105446d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // last violation. No locking needed, as this is only 105546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // accessed by the same thread. 105646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick private final HashMap<Integer, Long> mLastViolationTime = new HashMap<Integer, Long>(); 1057438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1058438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public AndroidBlockGuardPolicy(final int policyMask) { 1059438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick mPolicyMask = policyMask; 1060438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1061438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 10625b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick @Override 10635b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public String toString() { 10645b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return "AndroidBlockGuardPolicy; mPolicyMask=" + mPolicyMask; 10655b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 10665b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 1067438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 1068438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public int getPolicyMask() { 1069438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return mPolicyMask; 1070438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1071438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1072438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 1073438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void onWriteToDisk() { 107432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((mPolicyMask & DETECT_DISK_WRITE) == 0) { 1075438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return; 1076438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1077191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 1078191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return; 1079191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1080cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeDiskWriteViolation(mPolicyMask); 1081cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick e.fillInStackTrace(); 1082cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick startHandlingViolationException(e); 1083438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1084438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1085e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // Not part of BlockGuard.Policy; just part of StrictMode: 1086e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick void onCustomSlowCall(String name) { 1087e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick if ((mPolicyMask & DETECT_CUSTOM) == 0) { 1088e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return; 1089e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1090e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 1091e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return; 1092e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1093e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeCustomViolation(mPolicyMask, name); 1094e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick e.fillInStackTrace(); 1095e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick startHandlingViolationException(e); 1096e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1097e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 1098438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 1099438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void onReadFromDisk() { 110032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((mPolicyMask & DETECT_DISK_READ) == 0) { 1101438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return; 1102438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1103191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 1104191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return; 1105191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1106cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeDiskReadViolation(mPolicyMask); 1107cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick e.fillInStackTrace(); 1108cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick startHandlingViolationException(e); 1109438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1110438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1111438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 1112438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void onNetwork() { 111332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((mPolicyMask & DETECT_NETWORK) == 0) { 1114438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return; 1115438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1116b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick if ((mPolicyMask & PENALTY_DEATH_ON_NETWORK) != 0) { 1117b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick throw new NetworkOnMainThreadException(); 1118b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick } 1119191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 1120191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return; 1121191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1122cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeNetworkViolation(mPolicyMask); 1123cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick e.fillInStackTrace(); 1124cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick startHandlingViolationException(e); 1125438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1126438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1127438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void setPolicyMask(int policyMask) { 1128438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick mPolicyMask = policyMask; 1129438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1130438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 11315b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Start handling a violation that just started and hasn't 11325b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // actually run yet (e.g. no disk write or network operation 11335b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // has yet occurred). This sees if we're in an event loop 11345b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // thread and, if so, uses it to roughly measure how long the 11355b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // violation took. 11365b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick void startHandlingViolationException(BlockGuard.BlockGuardPolicyException e) { 1137cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick final ViolationInfo info = new ViolationInfo(e, e.getPolicy()); 1138cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.violationUptimeMillis = SystemClock.uptimeMillis(); 1139cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick handleViolationWithTimingAttempt(info); 1140cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1141438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1142cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // Attempts to fill in the provided ViolationInfo's 1143cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // durationMillis field if this thread has a Looper we can use 1144cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // to measure with. We measure from the time of violation 1145cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // until the time the looper is idle again (right before 1146cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // the next epoll_wait) 1147cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick void handleViolationWithTimingAttempt(final ViolationInfo info) { 1148438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick Looper looper = Looper.myLooper(); 1149cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1150cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // Without a Looper, we're unable to time how long the 1151cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // violation takes place. This case should be rare, as 1152cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // most users will care about timing violations that 1153cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // happen on their main UI thread. Note that this case is 1154cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // also hit when a violation takes place in a Binder 1155cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // thread, in "gather" mode. In this case, the duration 1156cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // of the violation is computed by the ultimate caller and 1157cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // its Looper, if any. 11584e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // 11594e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // Also, as a special short-cut case when the only penalty 11604e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // bit is death, we die immediately, rather than timing 11614e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // the violation's duration. This makes it convenient to 11624e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // use in unit tests too, rather than waiting on a Looper. 11634e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // 1164cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // TODO: if in gather mode, ignore Looper.myLooper() and always 1165cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // go into this immediate mode? 11664e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick if (looper == null || 1167c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick (info.policy & THREAD_PENALTY_MASK) == PENALTY_DEATH) { 1168cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.durationMillis = -1; // unknown (redundant, already set) 1169cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick handleViolation(info); 1170cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick return; 1171438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1172438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1173cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick final ArrayList<ViolationInfo> records = violationsBeingTimed.get(); 1174191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (records.size() >= MAX_OFFENSES_PER_LOOP) { 1175cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // Not worth measuring. Too many offenses in one loop. 1176cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick return; 1177cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1178cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick records.add(info); 1179cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (records.size() > 1) { 1180cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // There's already been a violation this loop, so we've already 1181cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // registered an idle handler to process the list of violations 1182cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // at the end of this Looper's loop. 1183cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick return; 1184cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1185cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 11866804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick final IWindowManager windowManager = (info.policy & PENALTY_FLASH) != 0 ? 1187cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick sWindowManager.get() : null; 11886804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick if (windowManager != null) { 11896804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick try { 11906804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick windowManager.showStrictModeViolation(true); 11916804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick } catch (RemoteException unused) { 11926804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick } 11936804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick } 11946804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick 1195bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // We post a runnable to a Handler (== delay 0 ms) for 1196bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // measuring the end time of a violation instead of using 1197bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // an IdleHandler (as was previously used) because an 1198bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // IdleHandler may not run for quite a long period of time 1199bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // if an ongoing animation is happening and continually 1200bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // posting ASAP (0 ms) animation steps. Animations are 1201bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // throttled back to 60fps via SurfaceFlinger/View 1202bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // invalidates, _not_ by posting frame updates every 16 1203bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // milliseconds. 12043761f33387f980d7a6c6e06555a5a932ba7247a2Jeff Sharkey threadHandler.get().postAtFrontOfQueue(new Runnable() { 1205bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick public void run() { 1206cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick long loopFinishTime = SystemClock.uptimeMillis(); 1207bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick 1208bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // Note: we do this early, before handling the 1209bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // violation below, as handling the violation 1210bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // may include PENALTY_DEATH and we don't want 1211bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // to keep the red border on. 1212bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick if (windowManager != null) { 1213bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick try { 1214bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick windowManager.showStrictModeViolation(false); 1215bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick } catch (RemoteException unused) { 1216bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick } 1217bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick } 1218bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick 1219cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick for (int n = 0; n < records.size(); ++n) { 1220cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ViolationInfo v = records.get(n); 1221cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick v.violationNumThisLoop = n + 1; 1222cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick v.durationMillis = 1223cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick (int) (loopFinishTime - v.violationUptimeMillis); 1224cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick handleViolation(v); 1225cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1226cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick records.clear(); 1227cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1228cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick }); 12295b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1230438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 12315b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Note: It's possible (even quite likely) that the 12325b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // thread-local policy mask has changed from the time the 12335b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // violation fired and now (after the violating code ran) due 12345b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // to people who push/pop temporary policy in regions of code, 12355b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // hence the policy being passed around. 1236cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick void handleViolation(final ViolationInfo info) { 1237cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (info == null || info.crashInfo == null || info.crashInfo.stackTrace == null) { 1238cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick Log.wtf(TAG, "unexpected null stacktrace"); 12395b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return; 12405b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1241438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1242cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (LOG_V) Log.d(TAG, "handleViolation; policy=" + info.policy); 124346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1244cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_GATHER) != 0) { 1245cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ArrayList<ViolationInfo> violations = gatheredViolations.get(); 1246703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick if (violations == null) { 1247cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violations = new ArrayList<ViolationInfo>(1); 1248703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick gatheredViolations.set(violations); 1249703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } else if (violations.size() >= 5) { 12505b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Too many. In a loop or something? Don't gather them all. 12515b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return; 12525b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1253cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick for (ViolationInfo previous : violations) { 1254cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (info.crashInfo.stackTrace.equals(previous.crashInfo.stackTrace)) { 12555b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Duplicate. Don't log. 12565b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return; 12575b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 12585b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1259cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violations.add(info); 1260727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick return; 1261727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } 1262727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 126346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Not perfect, but fast and good enough for dup suppression. 1264f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick Integer crashFingerprint = info.hashCode(); 126546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick long lastViolationTime = 0; 126646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick if (mLastViolationTime.containsKey(crashFingerprint)) { 126746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick lastViolationTime = mLastViolationTime.get(crashFingerprint); 126846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 126946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick long now = SystemClock.uptimeMillis(); 127046d42387464a651268648659e91d022566d4844cBrad Fitzpatrick mLastViolationTime.put(crashFingerprint, now); 127146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick long timeSinceLastViolationMillis = lastViolationTime == 0 ? 127246d42387464a651268648659e91d022566d4844cBrad Fitzpatrick Long.MAX_VALUE : (now - lastViolationTime); 127346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1274cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_LOG) != 0 && 127546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick timeSinceLastViolationMillis > MIN_LOG_INTERVAL_MS) { 1276cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (info.durationMillis != -1) { 12775b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick Log.d(TAG, "StrictMode policy violation; ~duration=" + 1278cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.durationMillis + " ms: " + info.crashInfo.stackTrace); 1279438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } else { 1280cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick Log.d(TAG, "StrictMode policy violation: " + info.crashInfo.stackTrace); 1281438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1282438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1283438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 128471678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // The violationMaskSubset, passed to ActivityManager, is a 128546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // subset of the original StrictMode policy bitmask, with 128646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // only the bit violated and penalty bits to be executed 128746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // by the ActivityManagerService remaining set. 1288cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick int violationMaskSubset = 0; 128946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1290cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_DIALOG) != 0 && 129146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick timeSinceLastViolationMillis > MIN_DIALOG_INTERVAL_MS) { 1292cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset |= PENALTY_DIALOG; 129346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 129446d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1295cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_DROPBOX) != 0 && lastViolationTime == 0) { 1296cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset |= PENALTY_DROPBOX; 129746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 129846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1299cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (violationMaskSubset != 0) { 1300cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick int violationBit = parseViolationFromMessage(info.crashInfo.exceptionMessage); 1301cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset |= violationBit; 130232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int savedPolicyMask = getThreadPolicyMask(); 130371678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick 1304c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick final boolean justDropBox = (info.policy & THREAD_PENALTY_MASK) == PENALTY_DROPBOX; 130571678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick if (justDropBox) { 130671678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // If all we're going to ask the activity manager 130771678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // to do is dropbox it (the common case during 130871678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // platform development), we can avoid doing this 130971678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // call synchronously which Binder data suggests 131071678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // isn't always super fast, despite the implementation 131171678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // in the ActivityManager trying to be mostly async. 1312bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick dropboxViolationAsync(violationMaskSubset, info); 131371678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick return; 131471678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick } 131571678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick 131671678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // Normal synchronous call to the ActivityManager. 1317438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick try { 1318727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // First, remove any policy before we call into the Activity Manager, 1319727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // otherwise we'll infinite recurse as we try to log policy violations 1320727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // to disk, thus violating policy, thus requiring logging, etc... 1321727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // We restore the current policy below, in the finally block. 132232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(0); 1323727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 1324438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick ActivityManagerNative.getDefault().handleApplicationStrictModeViolation( 1325438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick RuntimeInit.getApplicationObject(), 1326cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset, 1327cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info); 1328438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } catch (RemoteException e) { 132946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick Log.e(TAG, "RemoteException trying to handle StrictMode violation", e); 1330727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } finally { 1331727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // Restore the policy. 133232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(savedPolicyMask); 1333438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1334438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1335438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1336cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_DEATH) != 0) { 13374e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick executeDeathPenalty(info); 1338438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1339438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1340438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1341727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 13424e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick private static void executeDeathPenalty(ViolationInfo info) { 13434e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick int violationBit = parseViolationFromMessage(info.crashInfo.exceptionMessage); 13444e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick throw new StrictModeViolation(info.policy, violationBit, null); 13454e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 13464e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick 1347bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick /** 1348bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * In the common case, as set by conditionallyEnableDebugLogging, 1349bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * we're just dropboxing any violations but not showing a dialog, 1350bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * not loggging, and not killing the process. In these cases we 1351bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * don't need to do a synchronous call to the ActivityManager. 1352bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * This is used by both per-thread and vm-wide violations when 1353bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * applicable. 1354bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick */ 1355bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick private static void dropboxViolationAsync( 1356bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick final int violationMaskSubset, final ViolationInfo info) { 1357bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick int outstanding = sDropboxCallsInFlight.incrementAndGet(); 1358bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (outstanding > 20) { 1359bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // What's going on? Let's not make make the situation 1360bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // worse and just not log. 1361bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick sDropboxCallsInFlight.decrementAndGet(); 1362bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick return; 1363bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 1364bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 1365bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (LOG_V) Log.d(TAG, "Dropboxing async; in-flight=" + outstanding); 1366bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 1367bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick new Thread("callActivityManagerForStrictModeDropbox") { 1368bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick public void run() { 1369bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 1370bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick try { 13711065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick IActivityManager am = ActivityManagerNative.getDefault(); 13721065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick if (am == null) { 13731065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick Log.d(TAG, "No activity manager; failed to Dropbox violation."); 13741065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick } else { 13751065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick am.handleApplicationStrictModeViolation( 13761065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick RuntimeInit.getApplicationObject(), 13771065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick violationMaskSubset, 13781065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick info); 13791065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick } 1380bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } catch (RemoteException e) { 1381bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick Log.e(TAG, "RemoteException handling StrictMode violation", e); 1382bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 1383bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick int outstanding = sDropboxCallsInFlight.decrementAndGet(); 1384bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (LOG_V) Log.d(TAG, "Dropbox complete; in-flight=" + outstanding); 1385bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 1386bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick }.start(); 1387bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 1388bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 13894b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom private static class AndroidCloseGuardReporter implements CloseGuard.Reporter { 13904b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom public void report (String message, Throwable allocationSite) { 13914b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom onVmPolicyViolation(message, allocationSite); 13924b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 13934b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 13944b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom 1395727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick /** 13965b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Called from Parcel.writeNoException() 13975b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 13985b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /* package */ static boolean hasGatheredViolations() { 1399703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick return gatheredViolations.get() != null; 1400703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } 1401703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick 1402703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick /** 1403703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * Called from Parcel.writeException(), so we drop this memory and 1404703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * don't incorrectly attribute it to the wrong caller on the next 1405703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * Binder call on this thread. 1406703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick */ 1407703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick /* package */ static void clearGatheredViolations() { 1408703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick gatheredViolations.set(null); 14095b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 14105b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 14115b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 1412bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * @hide 1413bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick */ 1414bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public static void conditionallyCheckInstanceCounts() { 1415bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick VmPolicy policy = getVmPolicy(); 1416bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (policy.classInstanceLimit.size() == 0) { 1417bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick return; 1418bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1419bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick Runtime.getRuntime().gc(); 1420bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // Note: classInstanceLimit is immutable, so this is lock-free 14215f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick for (Map.Entry<Class, Integer> entry : policy.classInstanceLimit.entrySet()) { 14225f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick Class klass = entry.getKey(); 14235f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick int limit = entry.getValue(); 1424bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick long instances = VMDebug.countInstancesOfClass(klass, false); 1425bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (instances <= limit) { 1426bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick continue; 1427bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1428bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick Throwable tr = new InstanceCountViolation(klass, instances, limit); 1429bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick onVmPolicyViolation(tr.getMessage(), tr); 1430bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1431bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1432bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 1433bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static long sLastInstanceCountCheckMillis = 0; 14345f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick private static boolean sIsIdlerRegistered = false; // guarded by StrictMode.class 1435bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static final MessageQueue.IdleHandler sProcessIdleHandler = 1436bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick new MessageQueue.IdleHandler() { 1437bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public boolean queueIdle() { 1438bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick long now = SystemClock.uptimeMillis(); 1439bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (now - sLastInstanceCountCheckMillis > 30 * 1000) { 1440bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick sLastInstanceCountCheckMillis = now; 1441bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick conditionallyCheckInstanceCounts(); 1442bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1443bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick return true; 1444bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1445bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick }; 1446bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 1447bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick /** 144832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Sets the policy for what actions in the VM process (on any 144932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * thread) should be detected, as well as the penalty if such 145032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * actions occur. 145132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 145232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @param policy the policy to put into place 145332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 145432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static void setVmPolicy(final VmPolicy policy) { 14555f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick synchronized (StrictMode.class) { 14565f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick sVmPolicy = policy; 14575f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick sVmPolicyMask = policy.mask; 14585f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick setCloseGuardEnabled(vmClosableObjectLeaksEnabled()); 14595f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick 14605f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick Looper looper = Looper.getMainLooper(); 14615f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick if (looper != null) { 14625f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick MessageQueue mq = looper.mQueue; 1463c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick if (policy.classInstanceLimit.size() == 0 || 1464c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick (sVmPolicyMask & VM_PENALTY_MASK) == 0) { 1465bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mq.removeIdleHandler(sProcessIdleHandler); 1466c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick sIsIdlerRegistered = false; 1467bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } else if (!sIsIdlerRegistered) { 1468bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mq.addIdleHandler(sProcessIdleHandler); 1469bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick sIsIdlerRegistered = true; 1470bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1471bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1472bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 147332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 147432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 147532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 147632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Gets the current VM policy. 147732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 147832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static VmPolicy getVmPolicy() { 14795f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick synchronized (StrictMode.class) { 14805f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick return sVmPolicy; 14815f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } 148232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 148332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 148432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 148562a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * Enable the recommended StrictMode defaults, with violations just being logged. 148662a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * 148762a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * <p>This catches disk and network access on the main thread, as 1488fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * well as leaked SQLite cursors and unclosed resources. This is 1489fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * simply a wrapper around {@link #setVmPolicy} and {@link 1490fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * #setThreadPolicy}. 149162a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick */ 149262a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick public static void enableDefaults() { 149362a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder() 149462a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .detectAll() 149562a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .penaltyLog() 149662a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .build()); 149762a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder() 1498e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick .detectAll() 149962a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .penaltyLog() 150062a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .build()); 150162a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick } 150262a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick 150362a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick /** 150432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 150532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 150632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static boolean vmSqliteObjectLeaksEnabled() { 150732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return (sVmPolicyMask & DETECT_VM_CURSOR_LEAKS) != 0; 150832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 150932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 151032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 151132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 151232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 1513fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom public static boolean vmClosableObjectLeaksEnabled() { 1514fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom return (sVmPolicyMask & DETECT_VM_CLOSABLE_LEAKS) != 0; 1515fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom } 1516fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom 1517fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom /** 1518fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * @hide 1519fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom */ 1520d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey public static boolean vmRegistrationLeaksEnabled() { 1521d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey return (sVmPolicyMask & DETECT_VM_REGISTRATION_LEAKS) != 0; 1522d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey } 1523d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey 1524d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey /** 1525d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey * @hide 1526d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey */ 152732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static void onSqliteObjectLeaked(String message, Throwable originStack) { 15284b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom onVmPolicyViolation(message, originStack); 15294b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 15304b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom 153108d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block /** 153208d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block * @hide 153308d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block */ 153408d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block public static void onWebViewMethodCalledOnWrongThread(Throwable originStack) { 153508d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block onVmPolicyViolation(null, originStack); 153608d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block } 153708d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block 1538d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey /** 1539d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey * @hide 1540d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey */ 1541d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey public static void onIntentReceiverLeaked(Throwable originStack) { 1542d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey onVmPolicyViolation(null, originStack); 1543d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey } 1544d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey 1545d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey /** 1546d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey * @hide 1547d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey */ 1548d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey public static void onServiceConnectionLeaked(Throwable originStack) { 1549d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey onVmPolicyViolation(null, originStack); 1550d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey } 1551d7026f1612a7c1e8cc9b484038fa99b7fc29cfd7Jeff Sharkey 1552bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // Map from VM violation fingerprint to uptime millis. 1553bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static final HashMap<Integer, Long> sLastVmViolationTime = new HashMap<Integer, Long>(); 1554bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 15554b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom /** 15564b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom * @hide 15574b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom */ 15584b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom public static void onVmPolicyViolation(String message, Throwable originStack) { 1559bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final boolean penaltyDropbox = (sVmPolicyMask & PENALTY_DROPBOX) != 0; 1560bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final boolean penaltyDeath = (sVmPolicyMask & PENALTY_DEATH) != 0; 1561bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final boolean penaltyLog = (sVmPolicyMask & PENALTY_LOG) != 0; 1562bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final ViolationInfo info = new ViolationInfo(originStack, sVmPolicyMask); 1563bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 15645f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick // Erase stuff not relevant for process-wide violations 15655f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick info.numAnimationsRunning = 0; 15665f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick info.tags = null; 15675f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick info.broadcastIntentAction = null; 15685f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick 1569bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final Integer fingerprint = info.hashCode(); 1570bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final long now = SystemClock.uptimeMillis(); 1571bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick long lastViolationTime = 0; 1572bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick long timeSinceLastViolationMillis = Long.MAX_VALUE; 1573bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick synchronized (sLastVmViolationTime) { 1574bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (sLastVmViolationTime.containsKey(fingerprint)) { 1575bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick lastViolationTime = sLastVmViolationTime.get(fingerprint); 1576bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick timeSinceLastViolationMillis = now - lastViolationTime; 1577bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1578bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (timeSinceLastViolationMillis > MIN_LOG_INTERVAL_MS) { 1579bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick sLastVmViolationTime.put(fingerprint, now); 1580bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 158132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 158232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 1583bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (penaltyLog && timeSinceLastViolationMillis > MIN_LOG_INTERVAL_MS) { 1584bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick Log.e(TAG, message, originStack); 1585bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1586bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 1587bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick int violationMaskSubset = PENALTY_DROPBOX | (ALL_VM_DETECT_BITS & sVmPolicyMask); 1588bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 1589bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (penaltyDropbox && !penaltyDeath) { 1590bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // Common case for userdebug/eng builds. If no death and 1591bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // just dropboxing, we can do the ActivityManager call 1592bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // asynchronously. 1593bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick dropboxViolationAsync(violationMaskSubset, info); 1594bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick return; 1595bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 159632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 1597bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (penaltyDropbox && lastViolationTime == 0) { 159832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // The violationMask, passed to ActivityManager, is a 159932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // subset of the original StrictMode policy bitmask, with 160032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // only the bit violated and penalty bits to be executed 160132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // by the ActivityManagerService remaining set. 160232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int savedPolicyMask = getThreadPolicyMask(); 160332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick try { 160432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // First, remove any policy before we call into the Activity Manager, 160532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // otherwise we'll infinite recurse as we try to log policy violations 160632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // to disk, thus violating policy, thus requiring logging, etc... 160732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // We restore the current policy below, in the finally block. 160832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(0); 160932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 161032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick ActivityManagerNative.getDefault().handleApplicationStrictModeViolation( 161132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick RuntimeInit.getApplicationObject(), 161232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick violationMaskSubset, 161332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick info); 161432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } catch (RemoteException e) { 161532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick Log.e(TAG, "RemoteException trying to handle StrictMode violation", e); 161632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } finally { 161732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // Restore the policy. 161832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(savedPolicyMask); 161932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 162032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 162132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 1622bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (penaltyDeath) { 162332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick System.err.println("StrictMode VmPolicy violation with POLICY_DEATH; shutting down."); 162432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick Process.killProcess(Process.myPid()); 162532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick System.exit(10); 162632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 162732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 162832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 162932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 16305b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Called from Parcel.writeNoException() 16315b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 16325b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /* package */ static void writeGatheredViolationsToParcel(Parcel p) { 1633cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ArrayList<ViolationInfo> violations = gatheredViolations.get(); 1634703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick if (violations == null) { 1635703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick p.writeInt(0); 1636703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } else { 1637703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick p.writeInt(violations.size()); 1638703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick for (int i = 0; i < violations.size(); ++i) { 1639703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick violations.get(i).writeToParcel(p, 0 /* unused flags? */); 1640703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } 1641703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick if (LOG_V) Log.d(TAG, "wrote violations to response parcel; num=" + violations.size()); 1642703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick violations.clear(); // somewhat redundant, as we're about to null the threadlocal 16435b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1644703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick gatheredViolations.set(null); 16455b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 16465b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 16475b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static class LogStackTrace extends Exception {} 16485b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 16495b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 16505b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Called from Parcel.readException() when the exception is EX_STRICT_MODE_VIOLATIONS, 16515b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * we here read back all the encoded violations. 16525b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 16535b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /* package */ static void readAndHandleBinderCallViolations(Parcel p) { 16545b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Our own stack trace to append 16555b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick StringWriter sw = new StringWriter(); 1656cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick new LogStackTrace().printStackTrace(new PrintWriter(sw)); 16575b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick String ourStack = sw.toString(); 16585b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 165932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int policyMask = getThreadPolicyMask(); 1660cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick boolean currentlyGathering = (policyMask & PENALTY_GATHER) != 0; 16615b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 16625b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick int numViolations = p.readInt(); 16635b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick for (int i = 0; i < numViolations; ++i) { 16645b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (LOG_V) Log.d(TAG, "strict mode violation stacks read from binder call. i=" + i); 1665cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ViolationInfo info = new ViolationInfo(p, !currentlyGathering); 1666cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.crashInfo.stackTrace += "# via Binder call with stack:\n" + ourStack; 16675b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 16685b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (policy instanceof AndroidBlockGuardPolicy) { 1669cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ((AndroidBlockGuardPolicy) policy).handleViolationWithTimingAttempt(info); 16705b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 16715b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 16725b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 16735b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 16745b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 1675727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * Called from android_util_Binder.cpp's 1676727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * android_os_Parcel_enforceInterface when an incoming Binder call 1677727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * requires changing the StrictMode policy mask. The role of this 1678727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * function is to ask Binder for its current (native) thread-local 1679727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * policy value and synchronize it to libcore's (Java) 1680727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * thread-local policy value. 1681727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick */ 1682727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick private static void onBinderStrictModePolicyChange(int newPolicy) { 1683727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick setBlockGuardPolicy(newPolicy); 1684727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } 1685cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1686cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1687e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * A tracked, critical time span. (e.g. during an animation.) 1688e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1689e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * The object itself is a linked list node, to avoid any allocations 1690e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * during rapid span entries and exits. 1691e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1692e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * @hide 1693e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1694e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public static class Span { 1695e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private String mName; 1696e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private long mCreateMillis; 1697e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private Span mNext; 1698e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private Span mPrev; // not used when in freeList, only active 1699e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private final ThreadSpanState mContainerState; 1700e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1701e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick Span(ThreadSpanState threadState) { 1702e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick mContainerState = threadState; 1703e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1704e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 17051181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick // Empty constructor for the NO_OP_SPAN 17061181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick protected Span() { 17071181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick mContainerState = null; 17081181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick } 17091181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick 1710e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 1711e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * To be called when the critical span is complete (i.e. the 1712e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * animation is done animating). This can be called on any 1713e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * thread (even a different one from where the animation was 1714e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * taking place), but that's only a defensive implementation 1715e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * measure. It really makes no sense for you to call this on 1716e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * thread other than that where you created it. 1717e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1718e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * @hide 1719e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1720e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public void finish() { 1721e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick ThreadSpanState state = mContainerState; 1722e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick synchronized (state) { 1723e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (mName == null) { 1724e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // Duplicate finish call. Ignore. 1725e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick return; 1726e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1727e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1728e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // Remove ourselves from the active list. 1729e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (mPrev != null) { 1730e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick mPrev.mNext = mNext; 1731e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1732e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (mNext != null) { 1733e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick mNext.mPrev = mPrev; 1734e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1735e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (state.mActiveHead == this) { 1736e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mActiveHead = mNext; 1737e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1738e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 17391cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick state.mActiveSize--; 17401cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 17411cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (LOG_V) Log.d(TAG, "Span finished=" + mName + "; size=" + state.mActiveSize); 17421cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 1743e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mCreateMillis = -1; 1744e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mName = null; 1745e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mPrev = null; 1746e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mNext = null; 1747e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1748e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // Add ourselves to the freeList, if it's not already 1749e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // too big. 1750e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (state.mFreeListSize < 5) { 1751e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mNext = state.mFreeListHead; 1752e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mFreeListHead = this; 1753e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mFreeListSize++; 1754e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1755e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1756e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1757e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1758e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 17591181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick // The no-op span that's used in user builds. 17601181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick private static final Span NO_OP_SPAN = new Span() { 17611181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick public void finish() { 17621181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick // Do nothing. 17631181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick } 17641181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick }; 17651181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick 1766e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 1767e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * Linked lists of active spans and a freelist. 1768e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1769e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * Locking notes: there's one of these structures per thread and 1770e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * all members of this structure (as well as the Span nodes under 1771e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * it) are guarded by the ThreadSpanState object instance. While 1772e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * in theory there'd be no locking required because it's all local 1773e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * per-thread, the finish() method above is defensive against 1774e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * people calling it on a different thread from where they created 1775e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * the Span, hence the locking. 1776e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1777e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private static class ThreadSpanState { 1778e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public Span mActiveHead; // doubly-linked list. 1779e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public int mActiveSize; 1780e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public Span mFreeListHead; // singly-linked list. only changes at head. 1781e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public int mFreeListSize; 1782e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1783e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1784e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private static final ThreadLocal<ThreadSpanState> sThisThreadSpanState = 1785e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick new ThreadLocal<ThreadSpanState>() { 1786e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick @Override protected ThreadSpanState initialValue() { 1787e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick return new ThreadSpanState(); 1788e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1789e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick }; 1790e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1791cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick private static Singleton<IWindowManager> sWindowManager = new Singleton<IWindowManager>() { 1792cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick protected IWindowManager create() { 1793cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick return IWindowManager.Stub.asInterface(ServiceManager.getService("window")); 1794cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick } 1795cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick }; 1796cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick 1797e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 1798e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * Enter a named critical span (e.g. an animation) 1799e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1800e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * <p>The name is an arbitary label (or tag) that will be applied 1801e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * to any strictmode violation that happens while this span is 1802e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * active. You must call finish() on the span when done. 1803e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1804e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * <p>This will never return null, but on devices without debugging 1805e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * enabled, this may return a dummy object on which the finish() 1806e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * method is a no-op. 1807e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1808e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * <p>TODO: add CloseGuard to this, verifying callers call finish. 1809e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1810e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * @hide 1811e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1812e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public static Span enterCriticalSpan(String name) { 18131181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick if (IS_USER_BUILD) { 18141181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick return NO_OP_SPAN; 18151181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick } 1816e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (name == null || name.isEmpty()) { 1817e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick throw new IllegalArgumentException("name must be non-null and non-empty"); 1818e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1819e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick ThreadSpanState state = sThisThreadSpanState.get(); 1820e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick Span span = null; 1821e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick synchronized (state) { 1822e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (state.mFreeListHead != null) { 1823e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span = state.mFreeListHead; 1824e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mFreeListHead = span.mNext; 1825e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mFreeListSize--; 1826e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } else { 1827e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // Shouldn't have to do this often. 1828e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span = new Span(state); 1829e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1830e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mName = name; 1831e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mCreateMillis = SystemClock.uptimeMillis(); 1832e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mNext = state.mActiveHead; 1833e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mPrev = null; 1834e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mActiveHead = span; 1835e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mActiveSize++; 1836e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (span.mNext != null) { 1837e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mNext.mPrev = span; 1838e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 18391cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (LOG_V) Log.d(TAG, "Span enter=" + name + "; size=" + state.mActiveSize); 1840e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1841e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick return span; 1842e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1843e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1844e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick /** 1845e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * For code to note that it's slow. This is a no-op unless the 1846e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * current thread's {@link android.os.StrictMode.ThreadPolicy} has 1847e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * {@link android.os.StrictMode.ThreadPolicy.Builder#detectCustomSlowCalls} 1848e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * enabled. 1849e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * 1850e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * @param name a short string for the exception stack trace that's 1851e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * built if when this fires. 1852e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick */ 1853e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public static void noteSlowCall(String name) { 1854e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 1855e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick if (!(policy instanceof AndroidBlockGuardPolicy)) { 1856e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // StrictMode not enabled. 1857e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return; 1858e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1859e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick ((AndroidBlockGuardPolicy) policy).onCustomSlowCall(name); 1860e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1861e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1862e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 18634e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 18644e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 18654e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public static void noteDiskRead() { 18664e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 18674e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick if (!(policy instanceof AndroidBlockGuardPolicy)) { 18684e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // StrictMode not enabled. 18694e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick return; 18704e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 18714e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick ((AndroidBlockGuardPolicy) policy).onReadFromDisk(); 18724e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 18734e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick 18744e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 18754e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 18764e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 18774e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public static void noteDiskWrite() { 18784e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 18794e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick if (!(policy instanceof AndroidBlockGuardPolicy)) { 18804e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // StrictMode not enabled. 18814e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick return; 18824e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 18834e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick ((AndroidBlockGuardPolicy) policy).onWriteToDisk(); 18844e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 18854e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick 18865f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick // Guarded by StrictMode.class 18875f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick private static final HashMap<Class, Integer> sExpectedActivityInstanceCount = 18885f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick new HashMap<Class, Integer>(); 18895f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick 18904e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 18917e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown * Returns an object that is used to track instances of activites. 18927e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown * The activity should store a reference to the tracker object in one of its fields. 18937e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown * @hide 18947e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown */ 18957e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown public static Object trackActivity(Object instance) { 18967e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown return new InstanceTracker(instance); 18977e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 18987e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 18997e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown /** 1900758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * @hide 1901758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick */ 19025f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick public static void incrementExpectedActivityCount(Class klass) { 19037e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if (klass == null) { 1904758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return; 1905758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 19067e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 19075f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick synchronized (StrictMode.class) { 19087e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if ((sVmPolicy.mask & DETECT_VM_ACTIVITY_LEAKS) == 0) { 19097e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown return; 19107e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 19117e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 19125f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick Integer expected = sExpectedActivityInstanceCount.get(klass); 19135f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick Integer newExpected = expected == null ? 1 : expected + 1; 19145f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick sExpectedActivityInstanceCount.put(klass, newExpected); 19155f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } 19165f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } 19175f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick 19185f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick /** 19195f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick * @hide 19205f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick */ 19215f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick public static void decrementExpectedActivityCount(Class klass) { 19227e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if (klass == null) { 1923758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return; 1924758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 19257e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 19267e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown final int limit; 19275f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick synchronized (StrictMode.class) { 19287e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if ((sVmPolicy.mask & DETECT_VM_ACTIVITY_LEAKS) == 0) { 19297e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown return; 19307e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 19317e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 19325f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick Integer expected = sExpectedActivityInstanceCount.get(klass); 19337e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown int newExpected = (expected == null || expected == 0) ? 0 : expected - 1; 19345f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick if (newExpected == 0) { 19355f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick sExpectedActivityInstanceCount.remove(klass); 19365f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } else { 19375f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick sExpectedActivityInstanceCount.put(klass, newExpected); 19385f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } 19397e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 19405f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick // Note: adding 1 here to give some breathing room during 19415f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick // orientation changes. (shouldn't be necessary, though?) 19427e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown limit = newExpected + 1; 19435f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } 19445f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick 19457e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // Quick check. 19467e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown int actual = InstanceTracker.getInstanceCount(klass); 19477e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if (actual <= limit) { 19487e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown return; 19497e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 19507e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 19517e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // Do a GC and explicit count to double-check. 19527e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // This is the work that we are trying to avoid by tracking the object instances 19537e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // explicity. Running an explicit GC can be expensive (80ms) and so can walking 19547e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // the heap to count instance (30ms). This extra work can make the system feel 19557e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // noticeably less responsive during orientation changes when activities are 19567e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // being restarted. Granted, it is only a problem when StrictMode is enabled 19577e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // but it is annoying. 19587e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown Runtime.getRuntime().gc(); 19597e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 19607e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown long instances = VMDebug.countInstancesOfClass(klass, false); 19617e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if (instances > limit) { 19627e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown Throwable tr = new InstanceCountViolation(klass, instances, limit); 19637e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown onVmPolicyViolation(tr.getMessage(), tr); 19645f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } 1965758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 1966758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 1967758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick /** 1968cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Parcelable that gets sent in Binder call headers back to callers 1969cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * to report violations that happened during a cross-process call. 1970cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * 1971cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * @hide 1972cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1973cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public static class ViolationInfo { 1974cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1975cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Stack and other stuff info. 1976cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1977cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public final ApplicationErrorReport.CrashInfo crashInfo; 1978cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1979cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1980cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * The strict mode policy mask at the time of violation. 1981cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1982cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public final int policy; 1983cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1984cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1985cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * The wall time duration of the violation, when known. -1 when 1986cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * not known. 1987cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1988cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public int durationMillis = -1; 1989cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1990cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1991599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * The number of animations currently running. 1992599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick */ 1993599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick public int numAnimationsRunning = 0; 1994599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick 1995599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick /** 1996e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * List of tags from active Span instances during this 1997e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * violation, or null for none. 1998e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1999e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public String[] tags; 2000e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 2001e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 2002cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Which violation number this was (1-based) since the last Looper loop, 2003cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * from the perspective of the root caller (if it crossed any processes 2004cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * via Binder calls). The value is 0 if the root caller wasn't on a Looper 2005cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * thread. 2006cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 2007cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public int violationNumThisLoop; 2008cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2009cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 2010cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * The time (in terms of SystemClock.uptimeMillis()) that the 2011cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * violation occurred. 2012cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 2013cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public long violationUptimeMillis; 2014cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2015cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 2016bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick * The action of the Intent being broadcast to somebody's onReceive 2017bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick * on this thread right now, or null. 2018bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick */ 2019bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick public String broadcastIntentAction; 2020bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick 2021bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick /** 2022bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * If this is a instance count violation, the number of instances in memory, 2023bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * else -1. 2024bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick */ 2025bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public long numInstances = -1; 2026bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 2027bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick /** 2028cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an uninitialized instance of ViolationInfo 2029cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 2030cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo() { 2031cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo = null; 2032cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick policy = 0; 2033cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2034cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2035cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 2036cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an instance of ViolationInfo initialized from an exception. 2037cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 2038cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo(Throwable tr, int policy) { 2039cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo = new ApplicationErrorReport.CrashInfo(tr); 2040cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationUptimeMillis = SystemClock.uptimeMillis(); 2041cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick this.policy = policy; 2042599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick this.numAnimationsRunning = ValueAnimator.getCurrentAnimationsCount(); 2043bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick Intent broadcastIntent = ActivityThread.getIntentBeingBroadcast(); 2044bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick if (broadcastIntent != null) { 2045bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick broadcastIntentAction = broadcastIntent.getAction(); 2046bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick } 2047e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick ThreadSpanState state = sThisThreadSpanState.get(); 2048bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (tr instanceof InstanceCountViolation) { 2049bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick this.numInstances = ((InstanceCountViolation) tr).mInstances; 2050bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 2051e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick synchronized (state) { 2052e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick int spanActiveCount = state.mActiveSize; 2053e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (spanActiveCount > MAX_SPAN_TAGS) { 2054e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick spanActiveCount = MAX_SPAN_TAGS; 2055e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2056e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (spanActiveCount != 0) { 2057e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.tags = new String[spanActiveCount]; 2058e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick Span iter = state.mActiveHead; 2059e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick int index = 0; 2060e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick while (iter != null && index < spanActiveCount) { 2061e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.tags[index] = iter.mName; 2062e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick index++; 2063e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick iter = iter.mNext; 2064e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2065e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2066e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2067cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2068cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2069f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick @Override 2070f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick public int hashCode() { 2071f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick int result = 17; 2072f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick result = 37 * result + crashInfo.stackTrace.hashCode(); 2073f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick if (numAnimationsRunning != 0) { 2074f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick result *= 37; 2075f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 2076f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick if (broadcastIntentAction != null) { 2077f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick result = 37 * result + broadcastIntentAction.hashCode(); 2078f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 2079f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick if (tags != null) { 2080f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick for (String tag : tags) { 2081f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick result = 37 * result + tag.hashCode(); 2082f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 2083f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 2084f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick return result; 2085f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 2086f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick 2087cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 2088cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an instance of ViolationInfo initialized from a Parcel. 2089cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 2090cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo(Parcel in) { 2091cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick this(in, false); 2092cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2093cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2094cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 2095cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an instance of ViolationInfo initialized from a Parcel. 2096cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * 2097cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * @param unsetGatheringBit if true, the caller is the root caller 2098cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * and the gathering penalty should be removed. 2099cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 2100cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo(Parcel in, boolean unsetGatheringBit) { 2101cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo = new ApplicationErrorReport.CrashInfo(in); 2102cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick int rawPolicy = in.readInt(); 2103cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (unsetGatheringBit) { 2104cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick policy = rawPolicy & ~PENALTY_GATHER; 2105cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } else { 2106cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick policy = rawPolicy; 2107cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2108cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick durationMillis = in.readInt(); 2109cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationNumThisLoop = in.readInt(); 2110599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick numAnimationsRunning = in.readInt(); 2111cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationUptimeMillis = in.readLong(); 2112bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick numInstances = in.readLong(); 2113bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick broadcastIntentAction = in.readString(); 2114e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick tags = in.readStringArray(); 2115cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2116cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2117cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 2118cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Save a ViolationInfo instance to a parcel. 2119cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 2120cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public void writeToParcel(Parcel dest, int flags) { 2121cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo.writeToParcel(dest, flags); 2122cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeInt(policy); 2123cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeInt(durationMillis); 2124cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeInt(violationNumThisLoop); 2125599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick dest.writeInt(numAnimationsRunning); 2126cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeLong(violationUptimeMillis); 2127bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick dest.writeLong(numInstances); 2128bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick dest.writeString(broadcastIntentAction); 2129e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick dest.writeStringArray(tags); 2130cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2131cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2132cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2133cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 2134cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Dump a ViolationInfo instance to a Printer. 2135cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 2136cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public void dump(Printer pw, String prefix) { 2137cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo.dump(pw, prefix); 2138cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "policy: " + policy); 2139cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (durationMillis != -1) { 2140cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "durationMillis: " + durationMillis); 2141cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2142bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (numInstances != -1) { 2143bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick pw.println(prefix + "numInstances: " + numInstances); 2144bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 2145cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (violationNumThisLoop != 0) { 2146cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "violationNumThisLoop: " + violationNumThisLoop); 2147cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2148599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick if (numAnimationsRunning != 0) { 2149599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick pw.println(prefix + "numAnimationsRunning: " + numAnimationsRunning); 2150599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick } 2151cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "violationUptimeMillis: " + violationUptimeMillis); 2152bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick if (broadcastIntentAction != null) { 2153bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick pw.println(prefix + "broadcastIntentAction: " + broadcastIntentAction); 2154bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick } 2155e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (tags != null) { 2156e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick int index = 0; 2157e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick for (String tag : tags) { 2158e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick pw.println(prefix + "tag[" + (index++) + "]: " + tag); 2159e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2160e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2161cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2162cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2163cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2164bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 2165bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // Dummy throwable, for now, since we don't know when or where the 2166bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // leaked instances came from. We might in the future, but for 2167bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // now we suppress the stack trace because it's useless and/or 2168bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // misleading. 2169bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static class InstanceCountViolation extends Throwable { 2170bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final Class mClass; 2171bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final long mInstances; 2172bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final int mLimit; 2173bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 21745f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick private static final StackTraceElement[] FAKE_STACK = { 21755f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick new StackTraceElement("android.os.StrictMode", "setClassInstanceLimit", 21765f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick "StrictMode.java", 1) 21775f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick }; 2178bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 2179bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public InstanceCountViolation(Class klass, long instances, int limit) { 21805f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick super(klass.toString() + "; instances=" + instances + "; limit=" + limit); 2181bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick setStackTrace(FAKE_STACK); 2182bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mClass = klass; 2183bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mInstances = instances; 2184bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mLimit = limit; 2185bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 2186bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 21877e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 21887e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown private static final class InstanceTracker { 21897e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown private static final HashMap<Class<?>, Integer> sInstanceCounts = 21907e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown new HashMap<Class<?>, Integer>(); 21917e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 21927e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown private final Class<?> mKlass; 21937e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 21947e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown public InstanceTracker(Object instance) { 21957e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown mKlass = instance.getClass(); 21967e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 21977e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown synchronized (sInstanceCounts) { 21987e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown final Integer value = sInstanceCounts.get(mKlass); 21997e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown final int newValue = value != null ? value + 1 : 1; 22007e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown sInstanceCounts.put(mKlass, newValue); 22017e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 22027e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 22037e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 22047e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown @Override 22057e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown protected void finalize() throws Throwable { 22067e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown try { 22077e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown synchronized (sInstanceCounts) { 22087e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown final Integer value = sInstanceCounts.get(mKlass); 22097e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if (value != null) { 22107e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown final int newValue = value - 1; 22117e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if (newValue > 0) { 22127e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown sInstanceCounts.put(mKlass, newValue); 22137e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } else { 22147e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown sInstanceCounts.remove(mKlass); 22157e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 22167e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 22177e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 22187e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } finally { 22197e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown super.finalize(); 22207e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 22217e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 22227e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 22237e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown public static int getInstanceCount(Class<?> klass) { 22247e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown synchronized (sInstanceCounts) { 22257e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown final Integer value = sInstanceCounts.get(klass); 22267e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown return value != null ? value : 0; 22277e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 22287e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 22297e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 2230438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick} 2231