StrictMode.java revision be7c29c9f7e3d7b75d4374c8b5c0ca43c9d09c68
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; 23bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrickimport android.content.Intent; 24438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickimport android.util.Log; 25cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrickimport android.util.Printer; 26cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrickimport android.util.Singleton; 276804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrickimport android.view.IWindowManager; 28438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 29438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickimport com.android.internal.os.RuntimeInit; 30438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 31438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickimport dalvik.system.BlockGuard; 32fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstromimport dalvik.system.CloseGuard; 33bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrickimport dalvik.system.VMDebug; 34438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 355b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrickimport java.io.PrintWriter; 365b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrickimport java.io.StringWriter; 375b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrickimport java.util.ArrayList; 3846d42387464a651268648659e91d022566d4844cBrad Fitzpatrickimport java.util.HashMap; 395f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrickimport java.util.Map; 40bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrickimport java.util.concurrent.atomic.AtomicInteger; 4146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 42438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick/** 4332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>StrictMode is a developer tool which detects things you might be 4432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * doing by accident and brings them to your attention so you can fix 4532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * them. 4615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 4715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p>StrictMode is most commonly used to catch accidental disk or 4815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * network access on the application's main thread, where UI 4915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * operations are received and animations take place. Keeping disk 5015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * and network operations off the main thread makes for much smoother, 519fc2fc5757a3d28d098bd2b0ad0f869a3cf3fa14Brad Fitzpatrick * more responsive applications. By keeping your application's main thread 529fc2fc5757a3d28d098bd2b0ad0f869a3cf3fa14Brad Fitzpatrick * responsive, you also prevent 539fc2fc5757a3d28d098bd2b0ad0f869a3cf3fa14Brad Fitzpatrick * <a href="{@docRoot}guide/practices/design/responsiveness.html">ANR dialogs</a> 549fc2fc5757a3d28d098bd2b0ad0f869a3cf3fa14Brad Fitzpatrick * from being shown to users. 5515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 5615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p class="note">Note that even though an Android device's disk is 5715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * often on flash memory, many devices run a filesystem on top of that 5815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * memory with very limited concurrency. It's often the case that 5915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * almost all disk accesses are fast, but may in individual cases be 6015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * dramatically slower when certain I/O is happening in the background 6115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * from other processes. If possible, it's best to assume that such 6215ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * things are not fast.</p> 6315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 6415ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p>Example code to enable from early in your 6515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * {@link android.app.Application}, {@link android.app.Activity}, or 6615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * other application component's 6715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * {@link android.app.Application#onCreate} method: 6815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 6915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <pre> 7015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * public void onCreate() { 7115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * if (DEVELOPER_MODE) { 7232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.setThreadPolicy(new {@link ThreadPolicy.Builder StrictMode.ThreadPolicy.Builder}() 7332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectDiskReads() 7432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectDiskWrites() 7532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectNetwork() // or .detectAll() for all detectable problems 7632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 7732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build()); 7832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.setVmPolicy(new {@link VmPolicy.Builder StrictMode.VmPolicy.Builder}() 7962a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * .detectLeakedSqlLiteObjects() 80fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * .detectLeakedClosableObjects() 8132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 8232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyDeath() 8332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build()); 8415ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * } 8515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * super.onCreate(); 8615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * } 8715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * </pre> 8815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 8932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You can decide what should happen when a violation is detected. 9032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * For example, using {@link ThreadPolicy.Builder#penaltyLog} you can 9132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * watch the output of <code>adb logcat</code> while you use your 9232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * application to see the violations as they happen. 9315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 9415ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p>If you find violations that you feel are problematic, there are 9515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * a variety of tools to help solve them: threads, {@link android.os.Handler}, 9615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * {@link android.os.AsyncTask}, {@link android.app.IntentService}, etc. 9715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * But don't feel compelled to fix everything that StrictMode finds. In particular, 9832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * many cases of disk access are often necessary during the normal activity lifecycle. Use 9932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode to find things you did by accident. Network requests on the UI thread 10015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * are almost always a problem, though. 10115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 10215ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p class="note">StrictMode is not a security mechanism and is not 10315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * guaranteed to find all disk or network accesses. While it does 10415ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * propagate its state across process boundaries when doing 10515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * {@link android.os.Binder} calls, it's still ultimately a best 10615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * effort mechanism. Notably, disk or network access from JNI calls 10715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * won't necessarily trigger it. Future versions of Android may catch 10815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * more (or fewer) operations, so you should never leave StrictMode 10915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * enabled in shipping applications on the Android Market. 110438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 111438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickpublic final class StrictMode { 112438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick private static final String TAG = "StrictMode"; 11382829ef3b7c72bee36d8c17b36ac565f1856a310Brad Fitzpatrick private static final boolean LOG_V = Log.isLoggable(TAG, Log.VERBOSE); 114438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1151181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick private static final boolean IS_USER_BUILD = "user".equals(Build.TYPE); 1166804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick private static final boolean IS_ENG_BUILD = "eng".equals(Build.TYPE); 1171181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick 118c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick /** 119c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick * The boolean system property to control screen flashes on violations. 120c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick * 121c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick * @hide 122c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick */ 123c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick public static final String VISUAL_PROPERTY = "persist.sys.strictmode.visual"; 124c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 12546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Only log a duplicate stack trace to the logs every second. 12646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick private static final long MIN_LOG_INTERVAL_MS = 1000; 12746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 12846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Only show an annoying dialog at most every 30 seconds 12946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick private static final long MIN_DIALOG_INTERVAL_MS = 30000; 13046d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 131e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // How many Span tags (e.g. animations) to report. 132e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private static final int MAX_SPAN_TAGS = 20; 133e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 134191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick // How many offending stacks to keep track of (and time) per loop 135191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick // of the Looper. 136191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick private static final int MAX_OFFENSES_PER_LOOP = 10; 137191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick 13832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // Thread-policy: 139438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 14015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick /** 14132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 14215ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick */ 14332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final int DETECT_DISK_WRITE = 0x01; // for ThreadPolicy 14415ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick 14515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick /** 14632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 14715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick */ 14832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final int DETECT_DISK_READ = 0x02; // for ThreadPolicy 14915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick 15015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick /** 15132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 15215ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick */ 15332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final int DETECT_NETWORK = 0x04; // for ThreadPolicy 154438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 155e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick /** 156e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * For StrictMode.noteSlowCall() 157e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * 158e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * @hide 159e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick */ 160e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public static final int DETECT_CUSTOM = 0x08; // for ThreadPolicy 161e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 162e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick private static final int ALL_THREAD_DETECT_BITS = 163e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick DETECT_DISK_WRITE | DETECT_DISK_READ | DETECT_NETWORK | DETECT_CUSTOM; 164e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 16532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // Process-policy: 166438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 167438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 16832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Note, a "VM_" bit, not thread. 16932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 17032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 171758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public static final int DETECT_VM_CURSOR_LEAKS = 0x200; // for VmPolicy 17232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 17332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 174fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * Note, a "VM_" bit, not thread. 175fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * @hide 176fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom */ 177758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public static final int DETECT_VM_CLOSABLE_LEAKS = 0x400; // for VmPolicy 178758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 179758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick /** 180758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * Note, a "VM_" bit, not thread. 181758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * @hide 182758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick */ 183758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public static final int DETECT_VM_ACTIVITY_LEAKS = 0x800; // for VmPolicy 184fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom 185fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom /** 18632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 187438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 188bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static final int DETECT_VM_INSTANCE_LEAKS = 0x1000; // for VmPolicy 189bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 190bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static final int ALL_VM_DETECT_BITS = 191bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick DETECT_VM_CURSOR_LEAKS | DETECT_VM_CLOSABLE_LEAKS | 192bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick DETECT_VM_ACTIVITY_LEAKS | DETECT_VM_INSTANCE_LEAKS; 193bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 194bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick /** 195bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * @hide 196bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick */ 197438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public static final int PENALTY_LOG = 0x10; // normal android.util.Log 198438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 19932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // Used for both process and thread policy: 20032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 201438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 20232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 203438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 204438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public static final int PENALTY_DIALOG = 0x20; 205438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 206438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 207b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * Death on any detected violation. 208b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * 20932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 210438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 211438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public static final int PENALTY_DEATH = 0x40; 212438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 213438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 214b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * Death just for detected network usage. 215b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * 216b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * @hide 217b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick */ 218b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick public static final int PENALTY_DEATH_ON_NETWORK = 0x200; 219b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick 220b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick /** 2216804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick * Flash the screen during violations. 2226804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick * 2236804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick * @hide 2246804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick */ 2256804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick public static final int PENALTY_FLASH = 0x800; 2266804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick 2276804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick /** 22832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 229438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 230438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public static final int PENALTY_DROPBOX = 0x80; 231438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 232727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick /** 233727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * Non-public penalty mode which overrides all the other penalty 234727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * bits and signals that we're in a Binder call and we should 235727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * ignore the other penalty bits and instead serialize back all 236727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * our offending stack traces to the caller to ultimately handle 237727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * in the originating process. 238727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * 239703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * This must be kept in sync with the constant in libs/binder/Parcel.cpp 240703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * 241727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * @hide 242727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick */ 243727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick public static final int PENALTY_GATHER = 0x100; 244727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 24532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 246c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick * Mask of all the penalty bits valid for thread policies. 24771678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick */ 248c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick private static final int THREAD_PENALTY_MASK = 249b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick PENALTY_LOG | PENALTY_DIALOG | PENALTY_DEATH | PENALTY_DROPBOX | PENALTY_GATHER | 2506804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick PENALTY_DEATH_ON_NETWORK | PENALTY_FLASH; 25171678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick 252758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 253c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick /** 254c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick * Mask of all the penalty bits valid for VM policies. 255c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick */ 256c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick private static final int VM_PENALTY_MASK = 257c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick PENALTY_LOG | PENALTY_DEATH | PENALTY_DROPBOX; 258c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick 259c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick 260758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick // TODO: wrap in some ImmutableHashMap thing. 261758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick // Note: must be before static initialization of sVmPolicy. 262758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private static final HashMap<Class, Integer> EMPTY_CLASS_LIMIT_MAP = new HashMap<Class, Integer>(); 263758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 26471678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick /** 26532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * The current VmPolicy in effect. 266758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * 267758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * TODO: these are redundant (mask is in VmPolicy). Should remove sVmPolicyMask. 26832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 26932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private static volatile int sVmPolicyMask = 0; 270758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private static volatile VmPolicy sVmPolicy = VmPolicy.LAX; 27132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 272bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick /** 273bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * The number of threads trying to do an async dropbox write. 274bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * Just to limit ourselves out of paranoia. 275bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick */ 276bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick private static final AtomicInteger sDropboxCallsInFlight = new AtomicInteger(0); 277bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 27832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private StrictMode() {} 27932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 28032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 28132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link StrictMode} policy applied to a certain thread. 28232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 28332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>The policy is enabled by {@link #setThreadPolicy}. The current policy 28432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * can be retrieved with {@link #getThreadPolicy}. 28532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 28632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Note that multiple penalties may be provided and they're run 28732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * in order from least to most severe (logging before process 28832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * death, for example). There's currently no mechanism to choose 28932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * different penalties for different detected actions. 29032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 29132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class ThreadPolicy { 29232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 29332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * The default, lax policy which doesn't catch anything. 29432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 29532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final ThreadPolicy LAX = new ThreadPolicy(0); 29632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 29732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int mask; 29832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 29932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private ThreadPolicy(int mask) { 30032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick this.mask = mask; 30132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 30232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 30332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick @Override 30432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public String toString() { 30532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return "[StrictMode.ThreadPolicy; mask=" + mask + "]"; 30632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 30732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 30832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 309320274c5f17057a3a823fed50b7027cbd46fc025Brad Fitzpatrick * Creates {@link ThreadPolicy} instances. Methods whose names start 31032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@code detect} specify what problems we should look 31132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * for. Methods whose names start with {@code penalty} specify what 31232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * we should do when we detect a problem. 31332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 31432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You can call as many {@code detect} and {@code penalty} 31532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * methods as you like. Currently order is insignificant: all 31632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * penalties apply to all detected problems. 31732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 31832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>For example, detect everything and log anything that's found: 31932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <pre> 320320274c5f17057a3a823fed50b7027cbd46fc025Brad Fitzpatrick * StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder() 32132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectAll() 32232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 32332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build(); 324320274c5f17057a3a823fed50b7027cbd46fc025Brad Fitzpatrick * StrictMode.setThreadPolicy(policy); 32532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * </pre> 32632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 32732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class Builder { 32832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private int mMask = 0; 32932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 33032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 33132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Create a Builder that detects nothing and has no 33232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violations. (but note that {@link #build} will default 33332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to enabling {@link #penaltyLog} if no other penalties 33432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * are specified) 33532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 33632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder() { 33732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask = 0; 33832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 33932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 34032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 34132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Initialize a Builder from an existing ThreadPolicy. 34232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 34332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder(ThreadPolicy policy) { 34432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask = policy.mask; 34532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 34632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 34732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 34832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Detect everything that's potentially suspect. 34932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 35032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>As of the Gingerbread release this includes network and 35132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * disk operations but will likely expand in future releases. 35232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 35332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectAll() { 354e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return enable(ALL_THREAD_DETECT_BITS); 35532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 35632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 35732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 35832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable the detection of everything. 35932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 36032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitAll() { 361e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return disable(ALL_THREAD_DETECT_BITS); 36232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 36332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 36432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 36532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detection of network operations. 36632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 36732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectNetwork() { 36832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_NETWORK); 36932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 37032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 37132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 37232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable detection of network operations. 37332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 37432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitNetwork() { 37532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return disable(DETECT_NETWORK); 37632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 37732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 37832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 37932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detection of disk reads. 38032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 38132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectDiskReads() { 38232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_DISK_READ); 38332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 38432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 38532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 38632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable detection of disk reads. 38732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 38832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitDiskReads() { 38932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return disable(DETECT_DISK_READ); 39032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 39132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 39232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 393e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * Enable detection of disk reads. 394e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick */ 395e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public Builder detectCustomSlowCalls() { 396e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return enable(DETECT_CUSTOM); 397e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 398e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 399e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick /** 400e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * Enable detection of disk reads. 401e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick */ 402e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public Builder permitCustomSlowCalls() { 403e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return enable(DETECT_CUSTOM); 404e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 405e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 406e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick /** 40732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detection of disk writes. 40832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 40932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectDiskWrites() { 41032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_DISK_WRITE); 41132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 41232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 41332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 41432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable detection of disk writes. 41532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 41632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitDiskWrites() { 41732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return disable(DETECT_DISK_WRITE); 41832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 41932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 42032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 42132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Show an annoying dialog to the developer on detected 42232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violations, rate-limited to be only a little annoying. 42332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 42432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDialog() { 42532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DIALOG); 42632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 42732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 42832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 42932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Crash the whole process on violation. This penalty runs at 43032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * the end of all enabled penalties so you'll still get 43132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * see logging or other violations before the process dies. 432b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * 433b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * <p>Unlike {@link #penaltyDeathOnNetwork}, this applies 434b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * to disk reads, disk writes, and network usage if their 435b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * corresponding detect flags are set. 43632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 43732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDeath() { 43832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DEATH); 43932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 44032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 44132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 442b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * Crash the whole process on any network usage. Unlike 443b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * {@link #penaltyDeath}, this penalty runs 444b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * <em>before</em> anything else. You must still have 445b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * called {@link #detectNetwork} to enable this. 446b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * 447b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * <p>In the Honeycomb or later SDKs, this is on by default. 448b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick */ 449b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick public Builder penaltyDeathOnNetwork() { 450b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick return enable(PENALTY_DEATH_ON_NETWORK); 451b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick } 452b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick 453b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick /** 4546804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick * Flash the screen during a violation. 4556804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick */ 4566804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick public Builder penaltyFlashScreen() { 4576804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick return enable(PENALTY_FLASH); 4586804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick } 4596804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick 4606804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick /** 46132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Log detected violations to the system log. 46232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 46332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyLog() { 46432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_LOG); 46532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 46632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 46732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 46832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detected violations log a stacktrace and timing data 46932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to the {@link android.os.DropBoxManager DropBox} on policy 47032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violation. Intended mostly for platform integrators doing 47132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * beta user field data collection. 47232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 47332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDropBox() { 47432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DROPBOX); 47532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 47632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 47732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private Builder enable(int bit) { 47832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask |= bit; 47932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return this; 48032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 48132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 48232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private Builder disable(int bit) { 48332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask &= ~bit; 48432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return this; 48532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 48632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 48732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 48832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Construct the ThreadPolicy instance. 48932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 49032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Note: if no penalties are enabled before calling 49132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <code>build</code>, {@link #penaltyLog} is implicitly 49232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * set. 49332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 49432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public ThreadPolicy build() { 49532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // If there are detection bits set but no violation bits 49632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // set, enable simple logging. 49732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (mMask != 0 && 49832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick (mMask & (PENALTY_DEATH | PENALTY_LOG | 49932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick PENALTY_DROPBOX | PENALTY_DIALOG)) == 0) { 50032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick penaltyLog(); 50132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 50232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(mMask); 50332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 50432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 50532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 50632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 50732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 50832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link StrictMode} policy applied to all threads in the virtual machine's process. 50932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 51032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>The policy is enabled by {@link #setVmPolicy}. 51132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 51232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class VmPolicy { 51332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 51432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * The default, lax policy which doesn't catch anything. 51532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 516758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public static final VmPolicy LAX = new VmPolicy(0, EMPTY_CLASS_LIMIT_MAP); 51732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 51832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int mask; 51932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 520758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick // Map from class to max number of allowed instances in memory. 521758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick final HashMap<Class, Integer> classInstanceLimit; 522758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 523758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private VmPolicy(int mask, HashMap<Class, Integer> classInstanceLimit) { 524758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if (classInstanceLimit == null) { 525758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick throw new NullPointerException("classInstanceLimit == null"); 526758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 52732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick this.mask = mask; 528758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick this.classInstanceLimit = classInstanceLimit; 52932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 53032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 53132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick @Override 53232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public String toString() { 53332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return "[StrictMode.VmPolicy; mask=" + mask + "]"; 53432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 53532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 53632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 53732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Creates {@link VmPolicy} instances. Methods whose names start 53832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@code detect} specify what problems we should look 53932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * for. Methods whose names start with {@code penalty} specify what 54032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * we should do when we detect a problem. 54132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 54232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You can call as many {@code detect} and {@code penalty} 54332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * methods as you like. Currently order is insignificant: all 54432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * penalties apply to all detected problems. 54532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 54632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>For example, detect everything and log anything that's found: 54732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <pre> 54832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.VmPolicy policy = new StrictMode.VmPolicy.Builder() 54932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectAll() 55032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 55132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build(); 55232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.setVmPolicy(policy); 55332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * </pre> 55432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 55532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class Builder { 55632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private int mMask; 55732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 558758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private HashMap<Class, Integer> mClassInstanceLimit; // null until needed 559758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private boolean mClassInstanceLimitNeedCow = false; // need copy-on-write 560758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 561758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public Builder() { 562758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mMask = 0; 563758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 564758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 565758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick /** 566758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * Build upon an existing VmPolicy. 567758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick */ 568758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public Builder(VmPolicy base) { 569758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mMask = base.mask; 570758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimitNeedCow = true; 571758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit = base.classInstanceLimit; 572758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 573758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 574758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick /** 575758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * Set an upper bound on how many instances of a class can be in memory 576758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * at once. Helps to prevent object leaks. 577758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick */ 578758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public Builder setClassInstanceLimit(Class klass, int instanceLimit) { 579758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if (klass == null) { 580758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick throw new NullPointerException("klass == null"); 581758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 582758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if (mClassInstanceLimitNeedCow) { 583758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if (mClassInstanceLimit.containsKey(klass) && 584758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit.get(klass) == instanceLimit) { 585758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick // no-op; don't break COW 586758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return this; 587758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 588758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimitNeedCow = false; 589758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit = (HashMap<Class, Integer>) mClassInstanceLimit.clone(); 590758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } else if (mClassInstanceLimit == null) { 591758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit = new HashMap<Class, Integer>(); 592758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 593bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mMask |= DETECT_VM_INSTANCE_LEAKS; 594758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit.put(klass, instanceLimit); 595758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return this; 596758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 597758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 598bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick /** 599bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * Detect leaks of {@link android.app.Activity} subclasses. 600bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick */ 601bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public Builder detectActivityLeaks() { 602758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return enable(DETECT_VM_ACTIVITY_LEAKS); 603758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 604758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 60532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 60632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Detect everything that's potentially suspect. 60732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 608fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * <p>In the Honeycomb release this includes leaks of 609bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * SQLite cursors, Activities, and other closable objects 610bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * but will likely expand in future releases. 61132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 61232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectAll() { 613758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return enable(DETECT_VM_ACTIVITY_LEAKS | 614758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick DETECT_VM_CURSOR_LEAKS | DETECT_VM_CLOSABLE_LEAKS); 61532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 61632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 61732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 61832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Detect when an 61932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link android.database.sqlite.SQLiteCursor} or other 62032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * SQLite object is finalized without having been closed. 62132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 62232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You always want to explicitly close your SQLite 62332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * cursors to avoid unnecessary database contention and 62432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * temporary memory leaks. 62532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 62632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectLeakedSqlLiteObjects() { 62732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_VM_CURSOR_LEAKS); 62832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 62932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 63032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 631fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * Detect when an {@link java.io.Closeable} or other 632fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * object with a explict termination method is finalized 633fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * without having been closed. 634fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * 635fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * <p>You always want to explicitly close such objects to 636fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * avoid unnecessary resources leaks. 637fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom */ 638fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom public Builder detectLeakedClosableObjects() { 639fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom return enable(DETECT_VM_CLOSABLE_LEAKS); 640fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom } 641fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom 642fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom /** 64332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Crashes the whole process on violation. This penalty runs at 64432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * the end of all enabled penalties so yo you'll still get 64532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * your logging or other violations before the process dies. 64632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 64732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDeath() { 64832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DEATH); 64932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 65032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 65132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 65232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Log detected violations to the system log. 65332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 65432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyLog() { 65532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_LOG); 65632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 65732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 65832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 65932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detected violations log a stacktrace and timing data 66032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to the {@link android.os.DropBoxManager DropBox} on policy 66132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violation. Intended mostly for platform integrators doing 66232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * beta user field data collection. 66332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 66432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDropBox() { 66532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DROPBOX); 66632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 66732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 66832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private Builder enable(int bit) { 66932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask |= bit; 67032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return this; 67132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 67232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 67332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 67432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Construct the VmPolicy instance. 67532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 67632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Note: if no penalties are enabled before calling 67732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <code>build</code>, {@link #penaltyLog} is implicitly 67832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * set. 67932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 68032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public VmPolicy build() { 68132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // If there are detection bits set but no violation bits 68232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // set, enable simple logging. 68332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (mMask != 0 && 68432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick (mMask & (PENALTY_DEATH | PENALTY_LOG | 68532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick PENALTY_DROPBOX | PENALTY_DIALOG)) == 0) { 68632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick penaltyLog(); 68732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 688758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return new VmPolicy(mMask, 689758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit != null ? mClassInstanceLimit : EMPTY_CLASS_LIMIT_MAP); 69032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 69132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 69232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 693438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 694438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 6955b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Log of strict mode violation stack traces that have occurred 6965b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * during a Binder call, to be serialized back later to the caller 6975b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * via Parcel.writeNoException() (amusingly) where the caller can 6985b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * choose how to react. 6995b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 700cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick private static final ThreadLocal<ArrayList<ViolationInfo>> gatheredViolations = 701cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick new ThreadLocal<ArrayList<ViolationInfo>>() { 702cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick @Override protected ArrayList<ViolationInfo> initialValue() { 703703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick // Starts null to avoid unnecessary allocations when 704703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick // checking whether there are any violations or not in 705703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick // hasGatheredViolations() below. 706703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick return null; 7075b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7085b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick }; 7095b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 7105b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 71132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Sets the policy for what actions on the current thread should 71232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * be detected, as well as the penalty if such actions occur. 71315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 71432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Internally this sets a thread-local variable which is 71515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * propagated across cross-process IPC calls, meaning you can 71615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * catch violations when a system service or another process 71715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * accesses the disk or network on your behalf. 718438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 71932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @param policy the policy to put into place 720438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 72132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static void setThreadPolicy(final ThreadPolicy policy) { 72232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(policy.mask); 72332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 72432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 72532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private static void setThreadPolicyMask(final int policyMask) { 726727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // In addition to the Java-level thread-local in Dalvik's 727727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // BlockGuard, we also need to keep a native thread-local in 728727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // Binder in order to propagate the value across Binder calls, 729727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // even across native-only processes. The two are kept in 730727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // sync via the callback to onStrictModePolicyChange, below. 731727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick setBlockGuardPolicy(policyMask); 732727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 733727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // And set the Android native version... 734727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick Binder.setThreadStrictModePolicy(policyMask); 735727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } 736727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 737727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // Sets the policy in Dalvik/libcore (BlockGuard) 738727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick private static void setBlockGuardPolicy(final int policyMask) { 73946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick if (policyMask == 0) { 74046d42387464a651268648659e91d022566d4844cBrad Fitzpatrick BlockGuard.setThreadPolicy(BlockGuard.LAX_POLICY); 74146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick return; 74246d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 743438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 744438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick if (!(policy instanceof AndroidBlockGuardPolicy)) { 745438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick BlockGuard.setThreadPolicy(new AndroidBlockGuardPolicy(policyMask)); 746438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } else { 747438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick AndroidBlockGuardPolicy androidPolicy = (AndroidBlockGuardPolicy) policy; 748438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick androidPolicy.setPolicyMask(policyMask); 749438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 750438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 751438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 7524b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom // Sets up CloseGuard in Dalvik/libcore 7534b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom private static void setCloseGuardEnabled(boolean enabled) { 7547c2ae6570321575ad74a25bdc72bea1ec6558660Brad Fitzpatrick if (!(CloseGuard.getReporter() instanceof AndroidCloseGuardReporter)) { 7554b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom CloseGuard.setReporter(new AndroidCloseGuardReporter()); 7564b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 7574b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom CloseGuard.setEnabled(enabled); 7584b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 7594b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom 7604e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 7614e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 7624e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 7634e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public static class StrictModeViolation extends BlockGuard.BlockGuardPolicyException { 7644e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public StrictModeViolation(int policyState, int policyViolated, String message) { 7654e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick super(policyState, policyViolated, message); 7664e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 7674e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 7684e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick 7694e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 7704e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 7714e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 7724e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public static class StrictModeNetworkViolation extends StrictModeViolation { 7735b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public StrictModeNetworkViolation(int policyMask) { 7744e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick super(policyMask, DETECT_NETWORK, null); 7755b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7765b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7775b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 7784e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 7794e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 7804e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 7814e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick private static class StrictModeDiskReadViolation extends StrictModeViolation { 7825b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public StrictModeDiskReadViolation(int policyMask) { 7834e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick super(policyMask, DETECT_DISK_READ, null); 7845b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7855b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7865b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 7874e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 7884e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 7894e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 7904e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick private static class StrictModeDiskWriteViolation extends StrictModeViolation { 7915b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public StrictModeDiskWriteViolation(int policyMask) { 7924e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick super(policyMask, DETECT_DISK_WRITE, null); 7935b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7945b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7955b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 7964e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 7974e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 7984e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 7994e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick private static class StrictModeCustomViolation extends StrictModeViolation { 800e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public StrictModeCustomViolation(int policyMask, String name) { 801e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick super(policyMask, DETECT_CUSTOM, name); 802e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 803e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 804e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 805438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 80615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * Returns the bitmask of the current thread's policy. 807438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 80832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @return the bitmask of all the DETECT_* and PENALTY_* bits currently enabled 80932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 81032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 811438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 81232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static int getThreadPolicyMask() { 813438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return BlockGuard.getThreadPolicy().getPolicyMask(); 814438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 815438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 8165b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 81732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Returns the current thread's policy. 81832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 81932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static ThreadPolicy getThreadPolicy() { 820e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // TODO: this was a last minute Gingerbread API change (to 821e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // introduce VmPolicy cleanly) but this isn't particularly 822e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // optimal for users who might call this method often. This 823e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // should be in a thread-local and not allocate on each call. 82432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(getThreadPolicyMask()); 82532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 82632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 82732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 82832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * A convenience wrapper that takes the current 82932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link ThreadPolicy} from {@link #getThreadPolicy}, modifies it 83032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to permit both disk reads & writes, and sets the new policy 83132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@link #setThreadPolicy}, returning the old policy so you 83232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * can restore it at the end of a block. 83397461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick * 83432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @return the old policy, to be passed to {@link #setThreadPolicy} to 83532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * restore the policy at the end of a block 83697461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick */ 83732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static ThreadPolicy allowThreadDiskWrites() { 83832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int oldPolicyMask = getThreadPolicyMask(); 83932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int newPolicyMask = oldPolicyMask & ~(DETECT_DISK_WRITE | DETECT_DISK_READ); 84032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (newPolicyMask != oldPolicyMask) { 84132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(newPolicyMask); 84297461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 84332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(oldPolicyMask); 84497461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 84597461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick 84697461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick /** 84732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * A convenience wrapper that takes the current 84832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link ThreadPolicy} from {@link #getThreadPolicy}, modifies it 84932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to permit disk reads, and sets the new policy 85032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@link #setThreadPolicy}, returning the old policy so you 85132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * can restore it at the end of a block. 85297461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick * 85332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @return the old policy, to be passed to setThreadPolicy to 85497461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick * restore the policy. 85597461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick */ 85632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static ThreadPolicy allowThreadDiskReads() { 85732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int oldPolicyMask = getThreadPolicyMask(); 85832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int newPolicyMask = oldPolicyMask & ~(DETECT_DISK_READ); 85932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (newPolicyMask != oldPolicyMask) { 86032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(newPolicyMask); 86197461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 86232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(oldPolicyMask); 86397461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 86497461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick 865f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // We don't want to flash the screen red in the system server 866f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // process, nor do we want to modify all the call sites of 867f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // conditionallyEnableDebugLogging() in the system server, 868f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // so instead we use this to determine if we are the system server. 869f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick private static boolean amTheSystemServerProcess() { 870f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // Fast path. Most apps don't have the system server's UID. 871f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick if (Process.myUid() != Process.SYSTEM_UID) { 872f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick return false; 873f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick } 874f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick 875f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // The settings app, though, has the system server's UID so 876f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // look up our stack to see if we came from the system server. 877f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick Throwable stack = new Throwable(); 878f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick stack.fillInStackTrace(); 879f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick for (StackTraceElement ste : stack.getStackTrace()) { 880f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick String clsName = ste.getClassName(); 881f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick if (clsName != null && clsName.startsWith("com.android.server.")) { 882f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick return true; 883f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick } 884f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick } 885f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick return false; 886f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick } 887f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick 88897461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick /** 88950d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick * Enable DropBox logging for debug phone builds. 89050d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick * 89150d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick * @hide 89250d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick */ 89350d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick public static boolean conditionallyEnableDebugLogging() { 894f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick boolean doFlashes = !amTheSystemServerProcess() && 895f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick SystemProperties.getBoolean(VISUAL_PROPERTY, IS_ENG_BUILD); 896c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 89750d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick // For debug builds, log event loop stalls to dropbox for analysis. 89850d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick // Similar logic also appears in ActivityThread.java for system apps. 899c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick if (IS_USER_BUILD && !doFlashes) { 9007c2ae6570321575ad74a25bdc72bea1ec6558660Brad Fitzpatrick setCloseGuardEnabled(false); 90150d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick return false; 90250d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick } 903c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 904be7c29c9f7e3d7b75d4374c8b5c0ca43c9d09c68Jeff Brown // Thread policy controls BlockGuard. 905c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick int threadPolicyMask = StrictMode.DETECT_DISK_WRITE | 906c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick StrictMode.DETECT_DISK_READ | 907c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick StrictMode.DETECT_NETWORK; 908c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 909c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick if (!IS_USER_BUILD) { 910c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick threadPolicyMask |= StrictMode.PENALTY_DROPBOX; 911c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick } 912c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick if (doFlashes) { 913c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick threadPolicyMask |= StrictMode.PENALTY_FLASH; 914c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick } 915c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 916c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick StrictMode.setThreadPolicyMask(threadPolicyMask); 917c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 918be7c29c9f7e3d7b75d4374c8b5c0ca43c9d09c68Jeff Brown // VM Policy controls CloseGuard, detection of Activity leaks, 919be7c29c9f7e3d7b75d4374c8b5c0ca43c9d09c68Jeff Brown // and instance counting. 920c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick if (IS_USER_BUILD) { 921c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick setCloseGuardEnabled(false); 922c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick } else { 923d5875d98f06817f78bd974842a8a9c2d41802d20Jeff Brown VmPolicy.Builder policyBuilder = new VmPolicy.Builder().detectAll().penaltyDropBox(); 924d5875d98f06817f78bd974842a8a9c2d41802d20Jeff Brown if (IS_ENG_BUILD) { 925d5875d98f06817f78bd974842a8a9c2d41802d20Jeff Brown policyBuilder.penaltyLog(); 926d5875d98f06817f78bd974842a8a9c2d41802d20Jeff Brown } 927d5875d98f06817f78bd974842a8a9c2d41802d20Jeff Brown setVmPolicy(policyBuilder.build()); 928c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick setCloseGuardEnabled(vmClosableObjectLeaksEnabled()); 929c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick } 93050d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick return true; 93150d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick } 93250d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick 93350d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick /** 934b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * Used by the framework to make network usage on the main 935b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * thread a fatal error. 936b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * 937b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * @hide 938b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick */ 939b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick public static void enableDeathOnNetwork() { 940b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick int oldPolicy = getThreadPolicyMask(); 941b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick int newPolicy = oldPolicy | DETECT_NETWORK | PENALTY_DEATH_ON_NETWORK; 942b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick setThreadPolicyMask(newPolicy); 943b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick } 944b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick 945b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick /** 9465b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Parses the BlockGuard policy mask out from the Exception's 9475b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * getMessage() String value. Kinda gross, but least 9485b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * invasive. :/ 9495b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * 950e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * Input is of the following forms: 951e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * "policy=137 violation=64" 952e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * "policy=137 violation=64 msg=Arbitrary text" 9535b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * 9545b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Returns 0 on failure, which is a valid policy, but not a 9555b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * valid policy during a violation (else there must've been 9565b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * some policy in effect to violate). 9575b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 9585b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static int parsePolicyFromMessage(String message) { 9595b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (message == null || !message.startsWith("policy=")) { 9605b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9615b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9625b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick int spaceIndex = message.indexOf(' '); 9635b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (spaceIndex == -1) { 9645b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9655b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9665b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick String policyString = message.substring(7, spaceIndex); 9675b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick try { 9685b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return Integer.valueOf(policyString).intValue(); 9695b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } catch (NumberFormatException e) { 9705b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9715b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9725b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9735b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 9745b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 9755b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Like parsePolicyFromMessage(), but returns the violation. 9765b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 9775b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static int parseViolationFromMessage(String message) { 9785b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (message == null) { 9795b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9805b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9815b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick int violationIndex = message.indexOf("violation="); 9825b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (violationIndex == -1) { 9835b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9845b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 985e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick int numberStartIndex = violationIndex + "violation=".length(); 986e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick int numberEndIndex = message.indexOf(' ', numberStartIndex); 987e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick if (numberEndIndex == -1) { 988e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick numberEndIndex = message.length(); 989e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 990e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick String violationString = message.substring(numberStartIndex, numberEndIndex); 9915b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick try { 9925b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return Integer.valueOf(violationString).intValue(); 9935b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } catch (NumberFormatException e) { 9945b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9955b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9965b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9975b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 998191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick private static final ThreadLocal<ArrayList<ViolationInfo>> violationsBeingTimed = 999191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick new ThreadLocal<ArrayList<ViolationInfo>>() { 1000191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick @Override protected ArrayList<ViolationInfo> initialValue() { 1001191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return new ArrayList<ViolationInfo>(); 1002191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1003191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick }; 1004191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick 1005bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // Note: only access this once verifying the thread has a Looper. 1006bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick private static final ThreadLocal<Handler> threadHandler = new ThreadLocal<Handler>() { 1007bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick @Override protected Handler initialValue() { 1008bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick return new Handler(); 1009bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick } 1010bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick }; 1011bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick 1012191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick private static boolean tooManyViolationsThisLoop() { 1013191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return violationsBeingTimed.get().size() >= MAX_OFFENSES_PER_LOOP; 1014191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1015191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick 1016438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick private static class AndroidBlockGuardPolicy implements BlockGuard.Policy { 1017438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick private int mPolicyMask; 101846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 101946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Map from violation stacktrace hashcode -> uptimeMillis of 102046d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // last violation. No locking needed, as this is only 102146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // accessed by the same thread. 102246d42387464a651268648659e91d022566d4844cBrad Fitzpatrick private final HashMap<Integer, Long> mLastViolationTime = new HashMap<Integer, Long>(); 1023438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1024438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public AndroidBlockGuardPolicy(final int policyMask) { 1025438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick mPolicyMask = policyMask; 1026438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1027438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 10285b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick @Override 10295b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public String toString() { 10305b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return "AndroidBlockGuardPolicy; mPolicyMask=" + mPolicyMask; 10315b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 10325b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 1033438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 1034438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public int getPolicyMask() { 1035438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return mPolicyMask; 1036438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1037438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1038438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 1039438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void onWriteToDisk() { 104032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((mPolicyMask & DETECT_DISK_WRITE) == 0) { 1041438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return; 1042438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1043191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 1044191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return; 1045191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1046cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeDiskWriteViolation(mPolicyMask); 1047cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick e.fillInStackTrace(); 1048cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick startHandlingViolationException(e); 1049438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1050438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1051e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // Not part of BlockGuard.Policy; just part of StrictMode: 1052e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick void onCustomSlowCall(String name) { 1053e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick if ((mPolicyMask & DETECT_CUSTOM) == 0) { 1054e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return; 1055e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1056e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 1057e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return; 1058e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1059e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeCustomViolation(mPolicyMask, name); 1060e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick e.fillInStackTrace(); 1061e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick startHandlingViolationException(e); 1062e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1063e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 1064438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 1065438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void onReadFromDisk() { 106632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((mPolicyMask & DETECT_DISK_READ) == 0) { 1067438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return; 1068438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1069191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 1070191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return; 1071191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1072cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeDiskReadViolation(mPolicyMask); 1073cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick e.fillInStackTrace(); 1074cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick startHandlingViolationException(e); 1075438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1076438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1077438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 1078438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void onNetwork() { 107932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((mPolicyMask & DETECT_NETWORK) == 0) { 1080438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return; 1081438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1082b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick if ((mPolicyMask & PENALTY_DEATH_ON_NETWORK) != 0) { 1083b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick throw new NetworkOnMainThreadException(); 1084b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick } 1085191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 1086191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return; 1087191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1088cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeNetworkViolation(mPolicyMask); 1089cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick e.fillInStackTrace(); 1090cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick startHandlingViolationException(e); 1091438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1092438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1093438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void setPolicyMask(int policyMask) { 1094438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick mPolicyMask = policyMask; 1095438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1096438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 10975b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Start handling a violation that just started and hasn't 10985b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // actually run yet (e.g. no disk write or network operation 10995b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // has yet occurred). This sees if we're in an event loop 11005b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // thread and, if so, uses it to roughly measure how long the 11015b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // violation took. 11025b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick void startHandlingViolationException(BlockGuard.BlockGuardPolicyException e) { 1103cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick final ViolationInfo info = new ViolationInfo(e, e.getPolicy()); 1104cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.violationUptimeMillis = SystemClock.uptimeMillis(); 1105cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick handleViolationWithTimingAttempt(info); 1106cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1107438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1108cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // Attempts to fill in the provided ViolationInfo's 1109cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // durationMillis field if this thread has a Looper we can use 1110cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // to measure with. We measure from the time of violation 1111cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // until the time the looper is idle again (right before 1112cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // the next epoll_wait) 1113cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick void handleViolationWithTimingAttempt(final ViolationInfo info) { 1114438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick Looper looper = Looper.myLooper(); 1115cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1116cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // Without a Looper, we're unable to time how long the 1117cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // violation takes place. This case should be rare, as 1118cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // most users will care about timing violations that 1119cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // happen on their main UI thread. Note that this case is 1120cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // also hit when a violation takes place in a Binder 1121cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // thread, in "gather" mode. In this case, the duration 1122cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // of the violation is computed by the ultimate caller and 1123cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // its Looper, if any. 11244e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // 11254e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // Also, as a special short-cut case when the only penalty 11264e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // bit is death, we die immediately, rather than timing 11274e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // the violation's duration. This makes it convenient to 11284e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // use in unit tests too, rather than waiting on a Looper. 11294e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // 1130cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // TODO: if in gather mode, ignore Looper.myLooper() and always 1131cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // go into this immediate mode? 11324e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick if (looper == null || 1133c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick (info.policy & THREAD_PENALTY_MASK) == PENALTY_DEATH) { 1134cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.durationMillis = -1; // unknown (redundant, already set) 1135cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick handleViolation(info); 1136cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick return; 1137438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1138438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1139cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick final ArrayList<ViolationInfo> records = violationsBeingTimed.get(); 1140191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (records.size() >= MAX_OFFENSES_PER_LOOP) { 1141cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // Not worth measuring. Too many offenses in one loop. 1142cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick return; 1143cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1144cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick records.add(info); 1145cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (records.size() > 1) { 1146cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // There's already been a violation this loop, so we've already 1147cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // registered an idle handler to process the list of violations 1148cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // at the end of this Looper's loop. 1149cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick return; 1150cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1151cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 11526804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick final IWindowManager windowManager = (info.policy & PENALTY_FLASH) != 0 ? 1153cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick sWindowManager.get() : null; 11546804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick if (windowManager != null) { 11556804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick try { 11566804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick windowManager.showStrictModeViolation(true); 11576804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick } catch (RemoteException unused) { 11586804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick } 11596804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick } 11606804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick 1161bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // We post a runnable to a Handler (== delay 0 ms) for 1162bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // measuring the end time of a violation instead of using 1163bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // an IdleHandler (as was previously used) because an 1164bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // IdleHandler may not run for quite a long period of time 1165bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // if an ongoing animation is happening and continually 1166bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // posting ASAP (0 ms) animation steps. Animations are 1167bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // throttled back to 60fps via SurfaceFlinger/View 1168bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // invalidates, _not_ by posting frame updates every 16 1169bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // milliseconds. 1170bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick threadHandler.get().post(new Runnable() { 1171bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick public void run() { 1172cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick long loopFinishTime = SystemClock.uptimeMillis(); 1173bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick 1174bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // Note: we do this early, before handling the 1175bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // violation below, as handling the violation 1176bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // may include PENALTY_DEATH and we don't want 1177bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // to keep the red border on. 1178bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick if (windowManager != null) { 1179bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick try { 1180bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick windowManager.showStrictModeViolation(false); 1181bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick } catch (RemoteException unused) { 1182bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick } 1183bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick } 1184bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick 1185cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick for (int n = 0; n < records.size(); ++n) { 1186cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ViolationInfo v = records.get(n); 1187cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick v.violationNumThisLoop = n + 1; 1188cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick v.durationMillis = 1189cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick (int) (loopFinishTime - v.violationUptimeMillis); 1190cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick handleViolation(v); 1191cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1192cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick records.clear(); 1193cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1194cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick }); 11955b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1196438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 11975b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Note: It's possible (even quite likely) that the 11985b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // thread-local policy mask has changed from the time the 11995b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // violation fired and now (after the violating code ran) due 12005b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // to people who push/pop temporary policy in regions of code, 12015b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // hence the policy being passed around. 1202cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick void handleViolation(final ViolationInfo info) { 1203cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (info == null || info.crashInfo == null || info.crashInfo.stackTrace == null) { 1204cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick Log.wtf(TAG, "unexpected null stacktrace"); 12055b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return; 12065b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1207438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1208cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (LOG_V) Log.d(TAG, "handleViolation; policy=" + info.policy); 120946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1210cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_GATHER) != 0) { 1211cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ArrayList<ViolationInfo> violations = gatheredViolations.get(); 1212703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick if (violations == null) { 1213cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violations = new ArrayList<ViolationInfo>(1); 1214703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick gatheredViolations.set(violations); 1215703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } else if (violations.size() >= 5) { 12165b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Too many. In a loop or something? Don't gather them all. 12175b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return; 12185b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1219cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick for (ViolationInfo previous : violations) { 1220cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (info.crashInfo.stackTrace.equals(previous.crashInfo.stackTrace)) { 12215b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Duplicate. Don't log. 12225b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return; 12235b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 12245b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1225cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violations.add(info); 1226727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick return; 1227727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } 1228727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 122946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Not perfect, but fast and good enough for dup suppression. 1230f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick Integer crashFingerprint = info.hashCode(); 123146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick long lastViolationTime = 0; 123246d42387464a651268648659e91d022566d4844cBrad Fitzpatrick if (mLastViolationTime.containsKey(crashFingerprint)) { 123346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick lastViolationTime = mLastViolationTime.get(crashFingerprint); 123446d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 123546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick long now = SystemClock.uptimeMillis(); 123646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick mLastViolationTime.put(crashFingerprint, now); 123746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick long timeSinceLastViolationMillis = lastViolationTime == 0 ? 123846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick Long.MAX_VALUE : (now - lastViolationTime); 123946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1240cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_LOG) != 0 && 124146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick timeSinceLastViolationMillis > MIN_LOG_INTERVAL_MS) { 1242cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (info.durationMillis != -1) { 12435b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick Log.d(TAG, "StrictMode policy violation; ~duration=" + 1244cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.durationMillis + " ms: " + info.crashInfo.stackTrace); 1245438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } else { 1246cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick Log.d(TAG, "StrictMode policy violation: " + info.crashInfo.stackTrace); 1247438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1248438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1249438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 125071678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // The violationMaskSubset, passed to ActivityManager, is a 125146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // subset of the original StrictMode policy bitmask, with 125246d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // only the bit violated and penalty bits to be executed 125346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // by the ActivityManagerService remaining set. 1254cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick int violationMaskSubset = 0; 125546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1256cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_DIALOG) != 0 && 125746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick timeSinceLastViolationMillis > MIN_DIALOG_INTERVAL_MS) { 1258cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset |= PENALTY_DIALOG; 125946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 126046d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1261cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_DROPBOX) != 0 && lastViolationTime == 0) { 1262cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset |= PENALTY_DROPBOX; 126346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 126446d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1265cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (violationMaskSubset != 0) { 1266cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick int violationBit = parseViolationFromMessage(info.crashInfo.exceptionMessage); 1267cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset |= violationBit; 126832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int savedPolicyMask = getThreadPolicyMask(); 126971678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick 1270c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick final boolean justDropBox = (info.policy & THREAD_PENALTY_MASK) == PENALTY_DROPBOX; 127171678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick if (justDropBox) { 127271678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // If all we're going to ask the activity manager 127371678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // to do is dropbox it (the common case during 127471678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // platform development), we can avoid doing this 127571678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // call synchronously which Binder data suggests 127671678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // isn't always super fast, despite the implementation 127771678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // in the ActivityManager trying to be mostly async. 1278bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick dropboxViolationAsync(violationMaskSubset, info); 127971678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick return; 128071678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick } 128171678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick 128271678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // Normal synchronous call to the ActivityManager. 1283438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick try { 1284727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // First, remove any policy before we call into the Activity Manager, 1285727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // otherwise we'll infinite recurse as we try to log policy violations 1286727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // to disk, thus violating policy, thus requiring logging, etc... 1287727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // We restore the current policy below, in the finally block. 128832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(0); 1289727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 1290438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick ActivityManagerNative.getDefault().handleApplicationStrictModeViolation( 1291438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick RuntimeInit.getApplicationObject(), 1292cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset, 1293cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info); 1294438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } catch (RemoteException e) { 129546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick Log.e(TAG, "RemoteException trying to handle StrictMode violation", e); 1296727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } finally { 1297727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // Restore the policy. 129832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(savedPolicyMask); 1299438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1300438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1301438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1302cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_DEATH) != 0) { 13034e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick executeDeathPenalty(info); 1304438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1305438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1306438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1307727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 13084e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick private static void executeDeathPenalty(ViolationInfo info) { 13094e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick int violationBit = parseViolationFromMessage(info.crashInfo.exceptionMessage); 13104e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick throw new StrictModeViolation(info.policy, violationBit, null); 13114e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 13124e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick 1313bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick /** 1314bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * In the common case, as set by conditionallyEnableDebugLogging, 1315bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * we're just dropboxing any violations but not showing a dialog, 1316bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * not loggging, and not killing the process. In these cases we 1317bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * don't need to do a synchronous call to the ActivityManager. 1318bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * This is used by both per-thread and vm-wide violations when 1319bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * applicable. 1320bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick */ 1321bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick private static void dropboxViolationAsync( 1322bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick final int violationMaskSubset, final ViolationInfo info) { 1323bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick int outstanding = sDropboxCallsInFlight.incrementAndGet(); 1324bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (outstanding > 20) { 1325bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // What's going on? Let's not make make the situation 1326bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // worse and just not log. 1327bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick sDropboxCallsInFlight.decrementAndGet(); 1328bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick return; 1329bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 1330bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 1331bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (LOG_V) Log.d(TAG, "Dropboxing async; in-flight=" + outstanding); 1332bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 1333bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick new Thread("callActivityManagerForStrictModeDropbox") { 1334bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick public void run() { 1335bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 1336bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick try { 13371065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick IActivityManager am = ActivityManagerNative.getDefault(); 13381065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick if (am == null) { 13391065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick Log.d(TAG, "No activity manager; failed to Dropbox violation."); 13401065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick } else { 13411065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick am.handleApplicationStrictModeViolation( 13421065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick RuntimeInit.getApplicationObject(), 13431065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick violationMaskSubset, 13441065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick info); 13451065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick } 1346bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } catch (RemoteException e) { 1347bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick Log.e(TAG, "RemoteException handling StrictMode violation", e); 1348bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 1349bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick int outstanding = sDropboxCallsInFlight.decrementAndGet(); 1350bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (LOG_V) Log.d(TAG, "Dropbox complete; in-flight=" + outstanding); 1351bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 1352bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick }.start(); 1353bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 1354bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 13554b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom private static class AndroidCloseGuardReporter implements CloseGuard.Reporter { 13564b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom public void report (String message, Throwable allocationSite) { 13574b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom onVmPolicyViolation(message, allocationSite); 13584b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 13594b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 13604b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom 1361727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick /** 13625b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Called from Parcel.writeNoException() 13635b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 13645b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /* package */ static boolean hasGatheredViolations() { 1365703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick return gatheredViolations.get() != null; 1366703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } 1367703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick 1368703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick /** 1369703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * Called from Parcel.writeException(), so we drop this memory and 1370703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * don't incorrectly attribute it to the wrong caller on the next 1371703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * Binder call on this thread. 1372703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick */ 1373703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick /* package */ static void clearGatheredViolations() { 1374703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick gatheredViolations.set(null); 13755b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 13765b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 13775b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 1378bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * @hide 1379bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick */ 1380bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public static void conditionallyCheckInstanceCounts() { 1381bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick VmPolicy policy = getVmPolicy(); 1382bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (policy.classInstanceLimit.size() == 0) { 1383bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick return; 1384bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1385bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick Runtime.getRuntime().gc(); 1386bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // Note: classInstanceLimit is immutable, so this is lock-free 13875f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick for (Map.Entry<Class, Integer> entry : policy.classInstanceLimit.entrySet()) { 13885f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick Class klass = entry.getKey(); 13895f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick int limit = entry.getValue(); 1390bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick long instances = VMDebug.countInstancesOfClass(klass, false); 1391bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (instances <= limit) { 1392bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick continue; 1393bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1394bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick Throwable tr = new InstanceCountViolation(klass, instances, limit); 1395bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick onVmPolicyViolation(tr.getMessage(), tr); 1396bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1397bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1398bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 1399bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static long sLastInstanceCountCheckMillis = 0; 14005f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick private static boolean sIsIdlerRegistered = false; // guarded by StrictMode.class 1401bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static final MessageQueue.IdleHandler sProcessIdleHandler = 1402bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick new MessageQueue.IdleHandler() { 1403bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public boolean queueIdle() { 1404bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick long now = SystemClock.uptimeMillis(); 1405bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (now - sLastInstanceCountCheckMillis > 30 * 1000) { 1406bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick sLastInstanceCountCheckMillis = now; 1407bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick conditionallyCheckInstanceCounts(); 1408bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1409bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick return true; 1410bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1411bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick }; 1412bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 1413bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick /** 141432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Sets the policy for what actions in the VM process (on any 141532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * thread) should be detected, as well as the penalty if such 141632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * actions occur. 141732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 141832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @param policy the policy to put into place 141932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 142032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static void setVmPolicy(final VmPolicy policy) { 14215f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick synchronized (StrictMode.class) { 14225f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick sVmPolicy = policy; 14235f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick sVmPolicyMask = policy.mask; 14245f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick setCloseGuardEnabled(vmClosableObjectLeaksEnabled()); 14255f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick 14265f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick Looper looper = Looper.getMainLooper(); 14275f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick if (looper != null) { 14285f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick MessageQueue mq = looper.mQueue; 1429c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick if (policy.classInstanceLimit.size() == 0 || 1430c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick (sVmPolicyMask & VM_PENALTY_MASK) == 0) { 1431bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mq.removeIdleHandler(sProcessIdleHandler); 1432c0bb0bb5e3425b77b6e7820ebe25fe72bdd07782Brad Fitzpatrick sIsIdlerRegistered = false; 1433bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } else if (!sIsIdlerRegistered) { 1434bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mq.addIdleHandler(sProcessIdleHandler); 1435bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick sIsIdlerRegistered = true; 1436bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1437bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1438bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 143932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 144032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 144132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 144232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Gets the current VM policy. 144332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 144432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static VmPolicy getVmPolicy() { 14455f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick synchronized (StrictMode.class) { 14465f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick return sVmPolicy; 14475f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } 144832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 144932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 145032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 145162a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * Enable the recommended StrictMode defaults, with violations just being logged. 145262a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * 145362a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * <p>This catches disk and network access on the main thread, as 1454fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * well as leaked SQLite cursors and unclosed resources. This is 1455fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * simply a wrapper around {@link #setVmPolicy} and {@link 1456fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * #setThreadPolicy}. 145762a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick */ 145862a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick public static void enableDefaults() { 145962a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder() 146062a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .detectAll() 146162a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .penaltyLog() 146262a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .build()); 146362a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder() 1464e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick .detectAll() 146562a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .penaltyLog() 146662a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .build()); 146762a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick } 146862a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick 146962a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick /** 147032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 147132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 147232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static boolean vmSqliteObjectLeaksEnabled() { 147332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return (sVmPolicyMask & DETECT_VM_CURSOR_LEAKS) != 0; 147432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 147532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 147632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 147732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 147832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 1479fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom public static boolean vmClosableObjectLeaksEnabled() { 1480fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom return (sVmPolicyMask & DETECT_VM_CLOSABLE_LEAKS) != 0; 1481fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom } 1482fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom 1483fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom /** 1484fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * @hide 1485fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom */ 148632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static void onSqliteObjectLeaked(String message, Throwable originStack) { 14874b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom onVmPolicyViolation(message, originStack); 14884b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 14894b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom 149008d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block /** 149108d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block * @hide 149208d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block */ 149308d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block public static void onWebViewMethodCalledOnWrongThread(Throwable originStack) { 149408d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block onVmPolicyViolation(null, originStack); 149508d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block } 149608d584cd1cba05284ccd2d0ea128c297624f0c47Steve Block 1497bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // Map from VM violation fingerprint to uptime millis. 1498bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static final HashMap<Integer, Long> sLastVmViolationTime = new HashMap<Integer, Long>(); 1499bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 15004b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom /** 15014b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom * @hide 15024b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom */ 15034b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom public static void onVmPolicyViolation(String message, Throwable originStack) { 1504bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final boolean penaltyDropbox = (sVmPolicyMask & PENALTY_DROPBOX) != 0; 1505bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final boolean penaltyDeath = (sVmPolicyMask & PENALTY_DEATH) != 0; 1506bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final boolean penaltyLog = (sVmPolicyMask & PENALTY_LOG) != 0; 1507bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final ViolationInfo info = new ViolationInfo(originStack, sVmPolicyMask); 1508bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 15095f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick // Erase stuff not relevant for process-wide violations 15105f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick info.numAnimationsRunning = 0; 15115f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick info.tags = null; 15125f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick info.broadcastIntentAction = null; 15135f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick 1514bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final Integer fingerprint = info.hashCode(); 1515bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final long now = SystemClock.uptimeMillis(); 1516bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick long lastViolationTime = 0; 1517bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick long timeSinceLastViolationMillis = Long.MAX_VALUE; 1518bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick synchronized (sLastVmViolationTime) { 1519bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (sLastVmViolationTime.containsKey(fingerprint)) { 1520bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick lastViolationTime = sLastVmViolationTime.get(fingerprint); 1521bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick timeSinceLastViolationMillis = now - lastViolationTime; 1522bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1523bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (timeSinceLastViolationMillis > MIN_LOG_INTERVAL_MS) { 1524bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick sLastVmViolationTime.put(fingerprint, now); 1525bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 152632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 152732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 1528bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (penaltyLog && timeSinceLastViolationMillis > MIN_LOG_INTERVAL_MS) { 1529bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick Log.e(TAG, message, originStack); 1530bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1531bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 1532bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick int violationMaskSubset = PENALTY_DROPBOX | (ALL_VM_DETECT_BITS & sVmPolicyMask); 1533bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 1534bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (penaltyDropbox && !penaltyDeath) { 1535bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // Common case for userdebug/eng builds. If no death and 1536bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // just dropboxing, we can do the ActivityManager call 1537bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // asynchronously. 1538bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick dropboxViolationAsync(violationMaskSubset, info); 1539bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick return; 1540bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 154132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 1542bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (penaltyDropbox && lastViolationTime == 0) { 154332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // The violationMask, passed to ActivityManager, is a 154432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // subset of the original StrictMode policy bitmask, with 154532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // only the bit violated and penalty bits to be executed 154632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // by the ActivityManagerService remaining set. 154732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int savedPolicyMask = getThreadPolicyMask(); 154832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick try { 154932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // First, remove any policy before we call into the Activity Manager, 155032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // otherwise we'll infinite recurse as we try to log policy violations 155132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // to disk, thus violating policy, thus requiring logging, etc... 155232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // We restore the current policy below, in the finally block. 155332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(0); 155432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 155532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick ActivityManagerNative.getDefault().handleApplicationStrictModeViolation( 155632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick RuntimeInit.getApplicationObject(), 155732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick violationMaskSubset, 155832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick info); 155932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } catch (RemoteException e) { 156032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick Log.e(TAG, "RemoteException trying to handle StrictMode violation", e); 156132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } finally { 156232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // Restore the policy. 156332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(savedPolicyMask); 156432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 156532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 156632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 1567bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (penaltyDeath) { 156832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick System.err.println("StrictMode VmPolicy violation with POLICY_DEATH; shutting down."); 156932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick Process.killProcess(Process.myPid()); 157032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick System.exit(10); 157132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 157232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 157332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 157432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 15755b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Called from Parcel.writeNoException() 15765b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 15775b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /* package */ static void writeGatheredViolationsToParcel(Parcel p) { 1578cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ArrayList<ViolationInfo> violations = gatheredViolations.get(); 1579703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick if (violations == null) { 1580703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick p.writeInt(0); 1581703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } else { 1582703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick p.writeInt(violations.size()); 1583703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick for (int i = 0; i < violations.size(); ++i) { 1584703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick violations.get(i).writeToParcel(p, 0 /* unused flags? */); 1585703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } 1586703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick if (LOG_V) Log.d(TAG, "wrote violations to response parcel; num=" + violations.size()); 1587703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick violations.clear(); // somewhat redundant, as we're about to null the threadlocal 15885b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1589703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick gatheredViolations.set(null); 15905b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 15915b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 15925b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static class LogStackTrace extends Exception {} 15935b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 15945b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 15955b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Called from Parcel.readException() when the exception is EX_STRICT_MODE_VIOLATIONS, 15965b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * we here read back all the encoded violations. 15975b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 15985b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /* package */ static void readAndHandleBinderCallViolations(Parcel p) { 15995b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Our own stack trace to append 16005b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick StringWriter sw = new StringWriter(); 1601cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick new LogStackTrace().printStackTrace(new PrintWriter(sw)); 16025b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick String ourStack = sw.toString(); 16035b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 160432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int policyMask = getThreadPolicyMask(); 1605cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick boolean currentlyGathering = (policyMask & PENALTY_GATHER) != 0; 16065b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 16075b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick int numViolations = p.readInt(); 16085b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick for (int i = 0; i < numViolations; ++i) { 16095b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (LOG_V) Log.d(TAG, "strict mode violation stacks read from binder call. i=" + i); 1610cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ViolationInfo info = new ViolationInfo(p, !currentlyGathering); 1611cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.crashInfo.stackTrace += "# via Binder call with stack:\n" + ourStack; 16125b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 16135b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (policy instanceof AndroidBlockGuardPolicy) { 1614cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ((AndroidBlockGuardPolicy) policy).handleViolationWithTimingAttempt(info); 16155b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 16165b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 16175b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 16185b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 16195b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 1620727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * Called from android_util_Binder.cpp's 1621727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * android_os_Parcel_enforceInterface when an incoming Binder call 1622727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * requires changing the StrictMode policy mask. The role of this 1623727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * function is to ask Binder for its current (native) thread-local 1624727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * policy value and synchronize it to libcore's (Java) 1625727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * thread-local policy value. 1626727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick */ 1627727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick private static void onBinderStrictModePolicyChange(int newPolicy) { 1628727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick setBlockGuardPolicy(newPolicy); 1629727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } 1630cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1631cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1632e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * A tracked, critical time span. (e.g. during an animation.) 1633e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1634e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * The object itself is a linked list node, to avoid any allocations 1635e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * during rapid span entries and exits. 1636e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1637e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * @hide 1638e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1639e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public static class Span { 1640e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private String mName; 1641e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private long mCreateMillis; 1642e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private Span mNext; 1643e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private Span mPrev; // not used when in freeList, only active 1644e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private final ThreadSpanState mContainerState; 1645e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1646e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick Span(ThreadSpanState threadState) { 1647e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick mContainerState = threadState; 1648e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1649e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 16501181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick // Empty constructor for the NO_OP_SPAN 16511181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick protected Span() { 16521181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick mContainerState = null; 16531181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick } 16541181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick 1655e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 1656e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * To be called when the critical span is complete (i.e. the 1657e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * animation is done animating). This can be called on any 1658e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * thread (even a different one from where the animation was 1659e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * taking place), but that's only a defensive implementation 1660e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * measure. It really makes no sense for you to call this on 1661e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * thread other than that where you created it. 1662e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1663e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * @hide 1664e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1665e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public void finish() { 1666e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick ThreadSpanState state = mContainerState; 1667e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick synchronized (state) { 1668e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (mName == null) { 1669e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // Duplicate finish call. Ignore. 1670e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick return; 1671e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1672e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1673e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // Remove ourselves from the active list. 1674e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (mPrev != null) { 1675e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick mPrev.mNext = mNext; 1676e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1677e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (mNext != null) { 1678e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick mNext.mPrev = mPrev; 1679e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1680e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (state.mActiveHead == this) { 1681e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mActiveHead = mNext; 1682e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1683e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 16841cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick state.mActiveSize--; 16851cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 16861cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (LOG_V) Log.d(TAG, "Span finished=" + mName + "; size=" + state.mActiveSize); 16871cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 1688e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mCreateMillis = -1; 1689e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mName = null; 1690e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mPrev = null; 1691e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mNext = null; 1692e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1693e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // Add ourselves to the freeList, if it's not already 1694e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // too big. 1695e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (state.mFreeListSize < 5) { 1696e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mNext = state.mFreeListHead; 1697e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mFreeListHead = this; 1698e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mFreeListSize++; 1699e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1700e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1701e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1702e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1703e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 17041181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick // The no-op span that's used in user builds. 17051181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick private static final Span NO_OP_SPAN = new Span() { 17061181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick public void finish() { 17071181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick // Do nothing. 17081181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick } 17091181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick }; 17101181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick 1711e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 1712e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * Linked lists of active spans and a freelist. 1713e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1714e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * Locking notes: there's one of these structures per thread and 1715e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * all members of this structure (as well as the Span nodes under 1716e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * it) are guarded by the ThreadSpanState object instance. While 1717e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * in theory there'd be no locking required because it's all local 1718e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * per-thread, the finish() method above is defensive against 1719e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * people calling it on a different thread from where they created 1720e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * the Span, hence the locking. 1721e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1722e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private static class ThreadSpanState { 1723e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public Span mActiveHead; // doubly-linked list. 1724e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public int mActiveSize; 1725e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public Span mFreeListHead; // singly-linked list. only changes at head. 1726e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public int mFreeListSize; 1727e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1728e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1729e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private static final ThreadLocal<ThreadSpanState> sThisThreadSpanState = 1730e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick new ThreadLocal<ThreadSpanState>() { 1731e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick @Override protected ThreadSpanState initialValue() { 1732e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick return new ThreadSpanState(); 1733e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1734e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick }; 1735e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1736cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick private static Singleton<IWindowManager> sWindowManager = new Singleton<IWindowManager>() { 1737cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick protected IWindowManager create() { 1738cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick return IWindowManager.Stub.asInterface(ServiceManager.getService("window")); 1739cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick } 1740cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick }; 1741cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick 1742e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 1743e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * Enter a named critical span (e.g. an animation) 1744e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1745e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * <p>The name is an arbitary label (or tag) that will be applied 1746e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * to any strictmode violation that happens while this span is 1747e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * active. You must call finish() on the span when done. 1748e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1749e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * <p>This will never return null, but on devices without debugging 1750e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * enabled, this may return a dummy object on which the finish() 1751e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * method is a no-op. 1752e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1753e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * <p>TODO: add CloseGuard to this, verifying callers call finish. 1754e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1755e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * @hide 1756e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1757e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public static Span enterCriticalSpan(String name) { 17581181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick if (IS_USER_BUILD) { 17591181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick return NO_OP_SPAN; 17601181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick } 1761e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (name == null || name.isEmpty()) { 1762e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick throw new IllegalArgumentException("name must be non-null and non-empty"); 1763e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1764e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick ThreadSpanState state = sThisThreadSpanState.get(); 1765e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick Span span = null; 1766e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick synchronized (state) { 1767e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (state.mFreeListHead != null) { 1768e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span = state.mFreeListHead; 1769e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mFreeListHead = span.mNext; 1770e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mFreeListSize--; 1771e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } else { 1772e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // Shouldn't have to do this often. 1773e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span = new Span(state); 1774e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1775e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mName = name; 1776e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mCreateMillis = SystemClock.uptimeMillis(); 1777e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mNext = state.mActiveHead; 1778e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mPrev = null; 1779e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mActiveHead = span; 1780e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mActiveSize++; 1781e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (span.mNext != null) { 1782e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mNext.mPrev = span; 1783e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 17841cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (LOG_V) Log.d(TAG, "Span enter=" + name + "; size=" + state.mActiveSize); 1785e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1786e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick return span; 1787e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1788e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1789e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick /** 1790e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * For code to note that it's slow. This is a no-op unless the 1791e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * current thread's {@link android.os.StrictMode.ThreadPolicy} has 1792e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * {@link android.os.StrictMode.ThreadPolicy.Builder#detectCustomSlowCalls} 1793e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * enabled. 1794e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * 1795e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * @param name a short string for the exception stack trace that's 1796e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * built if when this fires. 1797e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick */ 1798e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public static void noteSlowCall(String name) { 1799e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 1800e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick if (!(policy instanceof AndroidBlockGuardPolicy)) { 1801e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // StrictMode not enabled. 1802e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return; 1803e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1804e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick ((AndroidBlockGuardPolicy) policy).onCustomSlowCall(name); 1805e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1806e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1807e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 18084e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 18094e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 18104e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public static void noteDiskRead() { 18114e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 18124e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick if (!(policy instanceof AndroidBlockGuardPolicy)) { 18134e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // StrictMode not enabled. 18144e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick return; 18154e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 18164e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick ((AndroidBlockGuardPolicy) policy).onReadFromDisk(); 18174e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 18184e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick 18194e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 18204e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 18214e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 18224e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public static void noteDiskWrite() { 18234e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 18244e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick if (!(policy instanceof AndroidBlockGuardPolicy)) { 18254e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // StrictMode not enabled. 18264e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick return; 18274e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 18284e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick ((AndroidBlockGuardPolicy) policy).onWriteToDisk(); 18294e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 18304e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick 18315f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick // Guarded by StrictMode.class 18325f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick private static final HashMap<Class, Integer> sExpectedActivityInstanceCount = 18335f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick new HashMap<Class, Integer>(); 18345f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick 18354e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 18367e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown * Returns an object that is used to track instances of activites. 18377e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown * The activity should store a reference to the tracker object in one of its fields. 18387e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown * @hide 18397e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown */ 18407e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown public static Object trackActivity(Object instance) { 18417e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown return new InstanceTracker(instance); 18427e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 18437e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 18447e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown /** 1845758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * @hide 1846758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick */ 18475f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick public static void incrementExpectedActivityCount(Class klass) { 18487e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if (klass == null) { 1849758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return; 1850758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 18517e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 18525f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick synchronized (StrictMode.class) { 18537e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if ((sVmPolicy.mask & DETECT_VM_ACTIVITY_LEAKS) == 0) { 18547e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown return; 18557e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 18567e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 18575f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick Integer expected = sExpectedActivityInstanceCount.get(klass); 18585f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick Integer newExpected = expected == null ? 1 : expected + 1; 18595f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick sExpectedActivityInstanceCount.put(klass, newExpected); 18605f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } 18615f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } 18625f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick 18635f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick /** 18645f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick * @hide 18655f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick */ 18665f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick public static void decrementExpectedActivityCount(Class klass) { 18677e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if (klass == null) { 1868758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return; 1869758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 18707e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 18717e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown final int limit; 18725f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick synchronized (StrictMode.class) { 18737e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if ((sVmPolicy.mask & DETECT_VM_ACTIVITY_LEAKS) == 0) { 18747e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown return; 18757e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 18767e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 18775f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick Integer expected = sExpectedActivityInstanceCount.get(klass); 18787e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown int newExpected = (expected == null || expected == 0) ? 0 : expected - 1; 18795f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick if (newExpected == 0) { 18805f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick sExpectedActivityInstanceCount.remove(klass); 18815f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } else { 18825f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick sExpectedActivityInstanceCount.put(klass, newExpected); 18835f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } 18847e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 18855f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick // Note: adding 1 here to give some breathing room during 18865f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick // orientation changes. (shouldn't be necessary, though?) 18877e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown limit = newExpected + 1; 18885f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } 18895f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick 18907e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // Quick check. 18917e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown int actual = InstanceTracker.getInstanceCount(klass); 18927e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if (actual <= limit) { 18937e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown return; 18947e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 18957e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 18967e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // Do a GC and explicit count to double-check. 18977e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // This is the work that we are trying to avoid by tracking the object instances 18987e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // explicity. Running an explicit GC can be expensive (80ms) and so can walking 18997e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // the heap to count instance (30ms). This extra work can make the system feel 19007e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // noticeably less responsive during orientation changes when activities are 19017e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // being restarted. Granted, it is only a problem when StrictMode is enabled 19027e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown // but it is annoying. 19037e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown Runtime.getRuntime().gc(); 19047e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 19057e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown long instances = VMDebug.countInstancesOfClass(klass, false); 19067e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if (instances > limit) { 19077e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown Throwable tr = new InstanceCountViolation(klass, instances, limit); 19087e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown onVmPolicyViolation(tr.getMessage(), tr); 19095f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick } 1910758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 1911758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 1912758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick /** 1913cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Parcelable that gets sent in Binder call headers back to callers 1914cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * to report violations that happened during a cross-process call. 1915cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * 1916cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * @hide 1917cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1918cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public static class ViolationInfo { 1919cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1920cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Stack and other stuff info. 1921cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1922cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public final ApplicationErrorReport.CrashInfo crashInfo; 1923cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1924cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1925cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * The strict mode policy mask at the time of violation. 1926cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1927cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public final int policy; 1928cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1929cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1930cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * The wall time duration of the violation, when known. -1 when 1931cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * not known. 1932cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1933cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public int durationMillis = -1; 1934cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1935cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1936599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * The number of animations currently running. 1937599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick */ 1938599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick public int numAnimationsRunning = 0; 1939599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick 1940599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick /** 1941e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * List of tags from active Span instances during this 1942e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * violation, or null for none. 1943e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1944e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public String[] tags; 1945e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1946e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 1947cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Which violation number this was (1-based) since the last Looper loop, 1948cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * from the perspective of the root caller (if it crossed any processes 1949cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * via Binder calls). The value is 0 if the root caller wasn't on a Looper 1950cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * thread. 1951cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1952cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public int violationNumThisLoop; 1953cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1954cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1955cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * The time (in terms of SystemClock.uptimeMillis()) that the 1956cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * violation occurred. 1957cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1958cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public long violationUptimeMillis; 1959cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1960cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1961bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick * The action of the Intent being broadcast to somebody's onReceive 1962bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick * on this thread right now, or null. 1963bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick */ 1964bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick public String broadcastIntentAction; 1965bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick 1966bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick /** 1967bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * If this is a instance count violation, the number of instances in memory, 1968bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * else -1. 1969bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick */ 1970bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public long numInstances = -1; 1971bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 1972bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick /** 1973cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an uninitialized instance of ViolationInfo 1974cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1975cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo() { 1976cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo = null; 1977cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick policy = 0; 1978cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1979cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1980cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1981cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an instance of ViolationInfo initialized from an exception. 1982cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1983cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo(Throwable tr, int policy) { 1984cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo = new ApplicationErrorReport.CrashInfo(tr); 1985cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationUptimeMillis = SystemClock.uptimeMillis(); 1986cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick this.policy = policy; 1987599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick this.numAnimationsRunning = ValueAnimator.getCurrentAnimationsCount(); 1988bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick Intent broadcastIntent = ActivityThread.getIntentBeingBroadcast(); 1989bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick if (broadcastIntent != null) { 1990bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick broadcastIntentAction = broadcastIntent.getAction(); 1991bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick } 1992e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick ThreadSpanState state = sThisThreadSpanState.get(); 1993bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (tr instanceof InstanceCountViolation) { 1994bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick this.numInstances = ((InstanceCountViolation) tr).mInstances; 1995bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1996e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick synchronized (state) { 1997e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick int spanActiveCount = state.mActiveSize; 1998e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (spanActiveCount > MAX_SPAN_TAGS) { 1999e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick spanActiveCount = MAX_SPAN_TAGS; 2000e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2001e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (spanActiveCount != 0) { 2002e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.tags = new String[spanActiveCount]; 2003e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick Span iter = state.mActiveHead; 2004e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick int index = 0; 2005e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick while (iter != null && index < spanActiveCount) { 2006e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.tags[index] = iter.mName; 2007e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick index++; 2008e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick iter = iter.mNext; 2009e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2010e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2011e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2012cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2013cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2014f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick @Override 2015f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick public int hashCode() { 2016f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick int result = 17; 2017f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick result = 37 * result + crashInfo.stackTrace.hashCode(); 2018f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick if (numAnimationsRunning != 0) { 2019f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick result *= 37; 2020f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 2021f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick if (broadcastIntentAction != null) { 2022f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick result = 37 * result + broadcastIntentAction.hashCode(); 2023f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 2024f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick if (tags != null) { 2025f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick for (String tag : tags) { 2026f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick result = 37 * result + tag.hashCode(); 2027f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 2028f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 2029f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick return result; 2030f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 2031f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick 2032cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 2033cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an instance of ViolationInfo initialized from a Parcel. 2034cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 2035cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo(Parcel in) { 2036cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick this(in, false); 2037cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2038cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2039cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 2040cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an instance of ViolationInfo initialized from a Parcel. 2041cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * 2042cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * @param unsetGatheringBit if true, the caller is the root caller 2043cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * and the gathering penalty should be removed. 2044cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 2045cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo(Parcel in, boolean unsetGatheringBit) { 2046cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo = new ApplicationErrorReport.CrashInfo(in); 2047cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick int rawPolicy = in.readInt(); 2048cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (unsetGatheringBit) { 2049cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick policy = rawPolicy & ~PENALTY_GATHER; 2050cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } else { 2051cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick policy = rawPolicy; 2052cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2053cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick durationMillis = in.readInt(); 2054cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationNumThisLoop = in.readInt(); 2055599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick numAnimationsRunning = in.readInt(); 2056cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationUptimeMillis = in.readLong(); 2057bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick numInstances = in.readLong(); 2058bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick broadcastIntentAction = in.readString(); 2059e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick tags = in.readStringArray(); 2060cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2061cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2062cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 2063cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Save a ViolationInfo instance to a parcel. 2064cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 2065cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public void writeToParcel(Parcel dest, int flags) { 2066cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo.writeToParcel(dest, flags); 2067cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeInt(policy); 2068cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeInt(durationMillis); 2069cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeInt(violationNumThisLoop); 2070599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick dest.writeInt(numAnimationsRunning); 2071cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeLong(violationUptimeMillis); 2072bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick dest.writeLong(numInstances); 2073bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick dest.writeString(broadcastIntentAction); 2074e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick dest.writeStringArray(tags); 2075cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2076cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2077cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2078cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 2079cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Dump a ViolationInfo instance to a Printer. 2080cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 2081cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public void dump(Printer pw, String prefix) { 2082cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo.dump(pw, prefix); 2083cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "policy: " + policy); 2084cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (durationMillis != -1) { 2085cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "durationMillis: " + durationMillis); 2086cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2087bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (numInstances != -1) { 2088bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick pw.println(prefix + "numInstances: " + numInstances); 2089bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 2090cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (violationNumThisLoop != 0) { 2091cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "violationNumThisLoop: " + violationNumThisLoop); 2092cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2093599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick if (numAnimationsRunning != 0) { 2094599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick pw.println(prefix + "numAnimationsRunning: " + numAnimationsRunning); 2095599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick } 2096cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "violationUptimeMillis: " + violationUptimeMillis); 2097bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick if (broadcastIntentAction != null) { 2098bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick pw.println(prefix + "broadcastIntentAction: " + broadcastIntentAction); 2099bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick } 2100e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (tags != null) { 2101e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick int index = 0; 2102e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick for (String tag : tags) { 2103e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick pw.println(prefix + "tag[" + (index++) + "]: " + tag); 2104e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2105e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2106cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2107cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2108cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2109bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 2110bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // Dummy throwable, for now, since we don't know when or where the 2111bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // leaked instances came from. We might in the future, but for 2112bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // now we suppress the stack trace because it's useless and/or 2113bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // misleading. 2114bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static class InstanceCountViolation extends Throwable { 2115bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final Class mClass; 2116bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final long mInstances; 2117bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final int mLimit; 2118bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 21195f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick private static final StackTraceElement[] FAKE_STACK = { 21205f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick new StackTraceElement("android.os.StrictMode", "setClassInstanceLimit", 21215f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick "StrictMode.java", 1) 21225f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick }; 2123bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 2124bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public InstanceCountViolation(Class klass, long instances, int limit) { 21255f8b5c191cae77f536ee64f0b625e4a7f8596787Brad Fitzpatrick super(klass.toString() + "; instances=" + instances + "; limit=" + limit); 2126bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick setStackTrace(FAKE_STACK); 2127bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mClass = klass; 2128bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mInstances = instances; 2129bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mLimit = limit; 2130bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 2131bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 21327e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 21337e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown private static final class InstanceTracker { 21347e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown private static final HashMap<Class<?>, Integer> sInstanceCounts = 21357e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown new HashMap<Class<?>, Integer>(); 21367e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 21377e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown private final Class<?> mKlass; 21387e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 21397e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown public InstanceTracker(Object instance) { 21407e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown mKlass = instance.getClass(); 21417e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 21427e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown synchronized (sInstanceCounts) { 21437e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown final Integer value = sInstanceCounts.get(mKlass); 21447e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown final int newValue = value != null ? value + 1 : 1; 21457e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown sInstanceCounts.put(mKlass, newValue); 21467e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 21477e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 21487e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 21497e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown @Override 21507e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown protected void finalize() throws Throwable { 21517e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown try { 21527e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown synchronized (sInstanceCounts) { 21537e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown final Integer value = sInstanceCounts.get(mKlass); 21547e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if (value != null) { 21557e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown final int newValue = value - 1; 21567e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown if (newValue > 0) { 21577e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown sInstanceCounts.put(mKlass, newValue); 21587e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } else { 21597e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown sInstanceCounts.remove(mKlass); 21607e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 21617e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 21627e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 21637e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } finally { 21647e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown super.finalize(); 21657e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 21667e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 21677e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown 21687e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown public static int getInstanceCount(Class<?> klass) { 21697e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown synchronized (sInstanceCounts) { 21707e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown final Integer value = sInstanceCounts.get(klass); 21717e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown return value != null ? value : 0; 21727e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 21737e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 21747e442837702a6e026c73a01fedb62c222b63cfc9Jeff Brown } 2175438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick} 2176