StrictMode.java revision bfbe5771106a07f9c8e8685e402b1003db40526f
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; 38758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrickimport java.util.Collections; 3946d42387464a651268648659e91d022566d4844cBrad Fitzpatrickimport java.util.HashMap; 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 /** 24671678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick * Mask of all the penalty bits. 24771678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick */ 24871678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick private static final int 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 253758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick // TODO: wrap in some ImmutableHashMap thing. 254758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick // Note: must be before static initialization of sVmPolicy. 255758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private static final HashMap<Class, Integer> EMPTY_CLASS_LIMIT_MAP = new HashMap<Class, Integer>(); 256758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 25771678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick /** 25832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * The current VmPolicy in effect. 259758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * 260758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * TODO: these are redundant (mask is in VmPolicy). Should remove sVmPolicyMask. 26132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 26232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private static volatile int sVmPolicyMask = 0; 263758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private static volatile VmPolicy sVmPolicy = VmPolicy.LAX; 26432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 265bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick /** 266bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * The number of threads trying to do an async dropbox write. 267bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * Just to limit ourselves out of paranoia. 268bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick */ 269bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick private static final AtomicInteger sDropboxCallsInFlight = new AtomicInteger(0); 270bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 27132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private StrictMode() {} 27232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 27332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 27432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link StrictMode} policy applied to a certain thread. 27532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 27632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>The policy is enabled by {@link #setThreadPolicy}. The current policy 27732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * can be retrieved with {@link #getThreadPolicy}. 27832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 27932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Note that multiple penalties may be provided and they're run 28032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * in order from least to most severe (logging before process 28132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * death, for example). There's currently no mechanism to choose 28232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * different penalties for different detected actions. 28332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 28432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class ThreadPolicy { 28532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 28632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * The default, lax policy which doesn't catch anything. 28732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 28832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final ThreadPolicy LAX = new ThreadPolicy(0); 28932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 29032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int mask; 29132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 29232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private ThreadPolicy(int mask) { 29332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick this.mask = mask; 29432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 29532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 29632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick @Override 29732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public String toString() { 29832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return "[StrictMode.ThreadPolicy; mask=" + mask + "]"; 29932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 30032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 30132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 302320274c5f17057a3a823fed50b7027cbd46fc025Brad Fitzpatrick * Creates {@link ThreadPolicy} instances. Methods whose names start 30332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@code detect} specify what problems we should look 30432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * for. Methods whose names start with {@code penalty} specify what 30532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * we should do when we detect a problem. 30632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 30732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You can call as many {@code detect} and {@code penalty} 30832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * methods as you like. Currently order is insignificant: all 30932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * penalties apply to all detected problems. 31032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 31132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>For example, detect everything and log anything that's found: 31232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <pre> 313320274c5f17057a3a823fed50b7027cbd46fc025Brad Fitzpatrick * StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder() 31432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectAll() 31532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 31632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build(); 317320274c5f17057a3a823fed50b7027cbd46fc025Brad Fitzpatrick * StrictMode.setThreadPolicy(policy); 31832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * </pre> 31932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 32032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class Builder { 32132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private int mMask = 0; 32232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 32332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 32432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Create a Builder that detects nothing and has no 32532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violations. (but note that {@link #build} will default 32632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to enabling {@link #penaltyLog} if no other penalties 32732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * are specified) 32832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 32932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder() { 33032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask = 0; 33132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 33232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 33332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 33432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Initialize a Builder from an existing ThreadPolicy. 33532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 33632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder(ThreadPolicy policy) { 33732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask = policy.mask; 33832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 33932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 34032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 34132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Detect everything that's potentially suspect. 34232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 34332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>As of the Gingerbread release this includes network and 34432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * disk operations but will likely expand in future releases. 34532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 34632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectAll() { 347e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return enable(ALL_THREAD_DETECT_BITS); 34832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 34932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 35032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 35132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable the detection of everything. 35232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 35332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitAll() { 354e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return disable(ALL_THREAD_DETECT_BITS); 35532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 35632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 35732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 35832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detection of network operations. 35932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 36032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectNetwork() { 36132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_NETWORK); 36232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 36332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 36432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 36532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable detection of network operations. 36632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 36732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitNetwork() { 36832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return disable(DETECT_NETWORK); 36932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 37032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 37132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 37232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detection of disk reads. 37332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 37432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectDiskReads() { 37532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_DISK_READ); 37632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 37732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 37832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 37932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable detection of disk reads. 38032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 38132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitDiskReads() { 38232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return disable(DETECT_DISK_READ); 38332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 38432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 38532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 386e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * Enable detection of disk reads. 387e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick */ 388e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public Builder detectCustomSlowCalls() { 389e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return enable(DETECT_CUSTOM); 390e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 391e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 392e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick /** 393e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * Enable detection of disk reads. 394e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick */ 395e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public Builder permitCustomSlowCalls() { 396e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return enable(DETECT_CUSTOM); 397e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 398e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 399e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick /** 40032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detection of disk writes. 40132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 40232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectDiskWrites() { 40332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_DISK_WRITE); 40432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 40532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 40632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 40732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable detection of disk writes. 40832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 40932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitDiskWrites() { 41032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return disable(DETECT_DISK_WRITE); 41132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 41232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 41332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 41432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Show an annoying dialog to the developer on detected 41532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violations, rate-limited to be only a little annoying. 41632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 41732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDialog() { 41832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DIALOG); 41932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 42032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 42132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 42232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Crash the whole process on violation. This penalty runs at 42332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * the end of all enabled penalties so you'll still get 42432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * see logging or other violations before the process dies. 425b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * 426b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * <p>Unlike {@link #penaltyDeathOnNetwork}, this applies 427b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * to disk reads, disk writes, and network usage if their 428b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * corresponding detect flags are set. 42932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 43032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDeath() { 43132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DEATH); 43232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 43332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 43432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 435b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * Crash the whole process on any network usage. Unlike 436b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * {@link #penaltyDeath}, this penalty runs 437b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * <em>before</em> anything else. You must still have 438b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * called {@link #detectNetwork} to enable this. 439b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * 440b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * <p>In the Honeycomb or later SDKs, this is on by default. 441b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick */ 442b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick public Builder penaltyDeathOnNetwork() { 443b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick return enable(PENALTY_DEATH_ON_NETWORK); 444b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick } 445b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick 446b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick /** 4476804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick * Flash the screen during a violation. 4486804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick */ 4496804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick public Builder penaltyFlashScreen() { 4506804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick return enable(PENALTY_FLASH); 4516804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick } 4526804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick 4536804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick /** 45432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Log detected violations to the system log. 45532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 45632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyLog() { 45732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_LOG); 45832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 45932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 46032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 46132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detected violations log a stacktrace and timing data 46232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to the {@link android.os.DropBoxManager DropBox} on policy 46332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violation. Intended mostly for platform integrators doing 46432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * beta user field data collection. 46532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 46632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDropBox() { 46732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DROPBOX); 46832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 46932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 47032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private Builder enable(int bit) { 47132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask |= bit; 47232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return this; 47332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 47432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 47532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private Builder disable(int bit) { 47632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask &= ~bit; 47732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return this; 47832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 47932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 48032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 48132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Construct the ThreadPolicy instance. 48232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 48332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Note: if no penalties are enabled before calling 48432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <code>build</code>, {@link #penaltyLog} is implicitly 48532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * set. 48632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 48732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public ThreadPolicy build() { 48832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // If there are detection bits set but no violation bits 48932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // set, enable simple logging. 49032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (mMask != 0 && 49132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick (mMask & (PENALTY_DEATH | PENALTY_LOG | 49232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick PENALTY_DROPBOX | PENALTY_DIALOG)) == 0) { 49332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick penaltyLog(); 49432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 49532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(mMask); 49632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 49732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 49832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 49932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 50032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 50132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link StrictMode} policy applied to all threads in the virtual machine's process. 50232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 50332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>The policy is enabled by {@link #setVmPolicy}. 50432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 50532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class VmPolicy { 50632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 50732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * The default, lax policy which doesn't catch anything. 50832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 509758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public static final VmPolicy LAX = new VmPolicy(0, EMPTY_CLASS_LIMIT_MAP); 51032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 51132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int mask; 51232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 513758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick // Map from class to max number of allowed instances in memory. 514758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick final HashMap<Class, Integer> classInstanceLimit; 515758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 516758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private VmPolicy(int mask, HashMap<Class, Integer> classInstanceLimit) { 517758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if (classInstanceLimit == null) { 518758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick throw new NullPointerException("classInstanceLimit == null"); 519758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 52032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick this.mask = mask; 521758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick this.classInstanceLimit = classInstanceLimit; 52232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 52332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 52432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick @Override 52532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public String toString() { 52632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return "[StrictMode.VmPolicy; mask=" + mask + "]"; 52732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 52832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 52932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 53032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Creates {@link VmPolicy} instances. Methods whose names start 53132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@code detect} specify what problems we should look 53232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * for. Methods whose names start with {@code penalty} specify what 53332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * we should do when we detect a problem. 53432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 53532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You can call as many {@code detect} and {@code penalty} 53632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * methods as you like. Currently order is insignificant: all 53732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * penalties apply to all detected problems. 53832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 53932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>For example, detect everything and log anything that's found: 54032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <pre> 54132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.VmPolicy policy = new StrictMode.VmPolicy.Builder() 54232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectAll() 54332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 54432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build(); 54532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.setVmPolicy(policy); 54632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * </pre> 54732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 54832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class Builder { 54932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private int mMask; 55032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 551758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private HashMap<Class, Integer> mClassInstanceLimit; // null until needed 552758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick private boolean mClassInstanceLimitNeedCow = false; // need copy-on-write 553758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 554758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public Builder() { 555758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mMask = 0; 556758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 557758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 558758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick /** 559758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * Build upon an existing VmPolicy. 560758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick */ 561758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public Builder(VmPolicy base) { 562758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mMask = base.mask; 563758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimitNeedCow = true; 564758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit = base.classInstanceLimit; 565758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 566758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 567758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick /** 568758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * Set an upper bound on how many instances of a class can be in memory 569758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * at once. Helps to prevent object leaks. 570758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick */ 571758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public Builder setClassInstanceLimit(Class klass, int instanceLimit) { 572758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if (klass == null) { 573758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick throw new NullPointerException("klass == null"); 574758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 575758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if (mClassInstanceLimitNeedCow) { 576758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if (mClassInstanceLimit.containsKey(klass) && 577758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit.get(klass) == instanceLimit) { 578758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick // no-op; don't break COW 579758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return this; 580758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 581758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimitNeedCow = false; 582758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit = (HashMap<Class, Integer>) mClassInstanceLimit.clone(); 583758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } else if (mClassInstanceLimit == null) { 584758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit = new HashMap<Class, Integer>(); 585758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 586bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mMask |= DETECT_VM_INSTANCE_LEAKS; 587758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit.put(klass, instanceLimit); 588758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return this; 589758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 590758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 591bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick /** 592bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * Detect leaks of {@link android.app.Activity} subclasses. 593bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick */ 594bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public Builder detectActivityLeaks() { 595758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return enable(DETECT_VM_ACTIVITY_LEAKS); 596758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 597758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 59832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 59932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Detect everything that's potentially suspect. 60032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 601fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * <p>In the Honeycomb release this includes leaks of 602bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * SQLite cursors, Activities, and other closable objects 603bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * but will likely expand in future releases. 60432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 60532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectAll() { 606758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return enable(DETECT_VM_ACTIVITY_LEAKS | 607758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick DETECT_VM_CURSOR_LEAKS | DETECT_VM_CLOSABLE_LEAKS); 60832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 60932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 61032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 61132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Detect when an 61232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link android.database.sqlite.SQLiteCursor} or other 61332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * SQLite object is finalized without having been closed. 61432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 61532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You always want to explicitly close your SQLite 61632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * cursors to avoid unnecessary database contention and 61732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * temporary memory leaks. 61832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 61932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectLeakedSqlLiteObjects() { 62032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_VM_CURSOR_LEAKS); 62132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 62232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 62332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 624fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * Detect when an {@link java.io.Closeable} or other 625fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * object with a explict termination method is finalized 626fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * without having been closed. 627fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * 628fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * <p>You always want to explicitly close such objects to 629fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * avoid unnecessary resources leaks. 630fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom */ 631fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom public Builder detectLeakedClosableObjects() { 632fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom return enable(DETECT_VM_CLOSABLE_LEAKS); 633fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom } 634fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom 635fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom /** 63632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Crashes the whole process on violation. This penalty runs at 63732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * the end of all enabled penalties so yo you'll still get 63832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * your logging or other violations before the process dies. 63932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 64032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDeath() { 64132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DEATH); 64232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 64332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 64432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 64532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Log detected violations to the system log. 64632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 64732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyLog() { 64832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_LOG); 64932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 65032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 65132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 65232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detected violations log a stacktrace and timing data 65332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to the {@link android.os.DropBoxManager DropBox} on policy 65432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violation. Intended mostly for platform integrators doing 65532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * beta user field data collection. 65632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 65732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDropBox() { 65832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DROPBOX); 65932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 66032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 66132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private Builder enable(int bit) { 66232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask |= bit; 66332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return this; 66432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 66532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 66632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 66732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Construct the VmPolicy instance. 66832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 66932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Note: if no penalties are enabled before calling 67032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <code>build</code>, {@link #penaltyLog} is implicitly 67132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * set. 67232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 67332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public VmPolicy build() { 67432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // If there are detection bits set but no violation bits 67532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // set, enable simple logging. 67632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (mMask != 0 && 67732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick (mMask & (PENALTY_DEATH | PENALTY_LOG | 67832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick PENALTY_DROPBOX | PENALTY_DIALOG)) == 0) { 67932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick penaltyLog(); 68032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 681758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return new VmPolicy(mMask, 682758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick mClassInstanceLimit != null ? mClassInstanceLimit : EMPTY_CLASS_LIMIT_MAP); 68332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 68432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 68532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 686438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 687438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 6885b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Log of strict mode violation stack traces that have occurred 6895b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * during a Binder call, to be serialized back later to the caller 6905b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * via Parcel.writeNoException() (amusingly) where the caller can 6915b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * choose how to react. 6925b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 693cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick private static final ThreadLocal<ArrayList<ViolationInfo>> gatheredViolations = 694cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick new ThreadLocal<ArrayList<ViolationInfo>>() { 695cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick @Override protected ArrayList<ViolationInfo> initialValue() { 696703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick // Starts null to avoid unnecessary allocations when 697703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick // checking whether there are any violations or not in 698703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick // hasGatheredViolations() below. 699703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick return null; 7005b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7015b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick }; 7025b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 7035b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 70432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Sets the policy for what actions on the current thread should 70532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * be detected, as well as the penalty if such actions occur. 70615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 70732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Internally this sets a thread-local variable which is 70815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * propagated across cross-process IPC calls, meaning you can 70915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * catch violations when a system service or another process 71015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * accesses the disk or network on your behalf. 711438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 71232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @param policy the policy to put into place 713438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 71432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static void setThreadPolicy(final ThreadPolicy policy) { 71532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(policy.mask); 71632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 71732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 71832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private static void setThreadPolicyMask(final int policyMask) { 719727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // In addition to the Java-level thread-local in Dalvik's 720727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // BlockGuard, we also need to keep a native thread-local in 721727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // Binder in order to propagate the value across Binder calls, 722727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // even across native-only processes. The two are kept in 723727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // sync via the callback to onStrictModePolicyChange, below. 724727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick setBlockGuardPolicy(policyMask); 725727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 726727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // And set the Android native version... 727727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick Binder.setThreadStrictModePolicy(policyMask); 728727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } 729727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 730727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // Sets the policy in Dalvik/libcore (BlockGuard) 731727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick private static void setBlockGuardPolicy(final int policyMask) { 73246d42387464a651268648659e91d022566d4844cBrad Fitzpatrick if (policyMask == 0) { 73346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick BlockGuard.setThreadPolicy(BlockGuard.LAX_POLICY); 73446d42387464a651268648659e91d022566d4844cBrad Fitzpatrick return; 73546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 736438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 737438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick if (!(policy instanceof AndroidBlockGuardPolicy)) { 738438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick BlockGuard.setThreadPolicy(new AndroidBlockGuardPolicy(policyMask)); 739438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } else { 740438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick AndroidBlockGuardPolicy androidPolicy = (AndroidBlockGuardPolicy) policy; 741438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick androidPolicy.setPolicyMask(policyMask); 742438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 743438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 744438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 7454b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom // Sets up CloseGuard in Dalvik/libcore 7464b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom private static void setCloseGuardEnabled(boolean enabled) { 7477c2ae6570321575ad74a25bdc72bea1ec6558660Brad Fitzpatrick if (!(CloseGuard.getReporter() instanceof AndroidCloseGuardReporter)) { 7484b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom CloseGuard.setReporter(new AndroidCloseGuardReporter()); 7494b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 7504b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom CloseGuard.setEnabled(enabled); 7514b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 7524b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom 7534e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 7544e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 7554e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 7564e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public static class StrictModeViolation extends BlockGuard.BlockGuardPolicyException { 7574e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public StrictModeViolation(int policyState, int policyViolated, String message) { 7584e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick super(policyState, policyViolated, message); 7594e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 7604e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 7614e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick 7624e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 7634e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 7644e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 7654e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public static class StrictModeNetworkViolation extends StrictModeViolation { 7665b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public StrictModeNetworkViolation(int policyMask) { 7674e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick super(policyMask, DETECT_NETWORK, null); 7685b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7695b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7705b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 7714e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 7724e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 7734e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 7744e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick private static class StrictModeDiskReadViolation extends StrictModeViolation { 7755b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public StrictModeDiskReadViolation(int policyMask) { 7764e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick super(policyMask, DETECT_DISK_READ, null); 7775b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7785b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7795b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 7804e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 7814e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 7824e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 7834e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick private static class StrictModeDiskWriteViolation extends StrictModeViolation { 7845b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public StrictModeDiskWriteViolation(int policyMask) { 7854e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick super(policyMask, DETECT_DISK_WRITE, null); 7865b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7875b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7885b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 7894e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 7904e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 7914e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 7924e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick private static class StrictModeCustomViolation extends StrictModeViolation { 793e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public StrictModeCustomViolation(int policyMask, String name) { 794e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick super(policyMask, DETECT_CUSTOM, name); 795e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 796e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 797e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 798438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 79915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * Returns the bitmask of the current thread's policy. 800438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 80132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @return the bitmask of all the DETECT_* and PENALTY_* bits currently enabled 80232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 80332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 804438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 80532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static int getThreadPolicyMask() { 806438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return BlockGuard.getThreadPolicy().getPolicyMask(); 807438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 808438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 8095b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 81032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Returns the current thread's policy. 81132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 81232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static ThreadPolicy getThreadPolicy() { 813e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // TODO: this was a last minute Gingerbread API change (to 814e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // introduce VmPolicy cleanly) but this isn't particularly 815e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // optimal for users who might call this method often. This 816e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // should be in a thread-local and not allocate on each call. 81732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(getThreadPolicyMask()); 81832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 81932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 82032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 82132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * A convenience wrapper that takes the current 82232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link ThreadPolicy} from {@link #getThreadPolicy}, modifies it 82332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to permit both disk reads & writes, and sets the new policy 82432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@link #setThreadPolicy}, returning the old policy so you 82532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * can restore it at the end of a block. 82697461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick * 82732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @return the old policy, to be passed to {@link #setThreadPolicy} to 82832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * restore the policy at the end of a block 82997461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick */ 83032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static ThreadPolicy allowThreadDiskWrites() { 83132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int oldPolicyMask = getThreadPolicyMask(); 83232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int newPolicyMask = oldPolicyMask & ~(DETECT_DISK_WRITE | DETECT_DISK_READ); 83332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (newPolicyMask != oldPolicyMask) { 83432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(newPolicyMask); 83597461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 83632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(oldPolicyMask); 83797461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 83897461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick 83997461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick /** 84032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * A convenience wrapper that takes the current 84132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link ThreadPolicy} from {@link #getThreadPolicy}, modifies it 84232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to permit disk reads, and sets the new policy 84332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@link #setThreadPolicy}, returning the old policy so you 84432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * can restore it at the end of a block. 84597461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick * 84632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @return the old policy, to be passed to setThreadPolicy to 84797461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick * restore the policy. 84897461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick */ 84932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static ThreadPolicy allowThreadDiskReads() { 85032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int oldPolicyMask = getThreadPolicyMask(); 85132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int newPolicyMask = oldPolicyMask & ~(DETECT_DISK_READ); 85232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (newPolicyMask != oldPolicyMask) { 85332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(newPolicyMask); 85497461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 85532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(oldPolicyMask); 85697461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 85797461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick 858f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // We don't want to flash the screen red in the system server 859f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // process, nor do we want to modify all the call sites of 860f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // conditionallyEnableDebugLogging() in the system server, 861f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // so instead we use this to determine if we are the system server. 862f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick private static boolean amTheSystemServerProcess() { 863f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // Fast path. Most apps don't have the system server's UID. 864f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick if (Process.myUid() != Process.SYSTEM_UID) { 865f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick return false; 866f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick } 867f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick 868f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // The settings app, though, has the system server's UID so 869f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick // look up our stack to see if we came from the system server. 870f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick Throwable stack = new Throwable(); 871f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick stack.fillInStackTrace(); 872f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick for (StackTraceElement ste : stack.getStackTrace()) { 873f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick String clsName = ste.getClassName(); 874f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick if (clsName != null && clsName.startsWith("com.android.server.")) { 875f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick return true; 876f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick } 877f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick } 878f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick return false; 879f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick } 880f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick 88197461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick /** 88250d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick * Enable DropBox logging for debug phone builds. 88350d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick * 88450d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick * @hide 88550d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick */ 88650d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick public static boolean conditionallyEnableDebugLogging() { 887f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick boolean doFlashes = !amTheSystemServerProcess() && 888f54545927f365d6e55cbf66ff9f7ffe91aada774Brad Fitzpatrick SystemProperties.getBoolean(VISUAL_PROPERTY, IS_ENG_BUILD); 889c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 89050d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick // For debug builds, log event loop stalls to dropbox for analysis. 89150d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick // Similar logic also appears in ActivityThread.java for system apps. 892c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick if (IS_USER_BUILD && !doFlashes) { 8937c2ae6570321575ad74a25bdc72bea1ec6558660Brad Fitzpatrick setCloseGuardEnabled(false); 89450d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick return false; 89550d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick } 896c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 897c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick int threadPolicyMask = StrictMode.DETECT_DISK_WRITE | 898c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick StrictMode.DETECT_DISK_READ | 899c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick StrictMode.DETECT_NETWORK; 900c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 901c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick if (!IS_USER_BUILD) { 902c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick threadPolicyMask |= StrictMode.PENALTY_DROPBOX; 903c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick } 904c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick if (doFlashes) { 905c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick threadPolicyMask |= StrictMode.PENALTY_FLASH; 906c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick } 907c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 908c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick StrictMode.setThreadPolicyMask(threadPolicyMask); 909c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick 910c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick if (IS_USER_BUILD) { 911c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick setCloseGuardEnabled(false); 912c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick } else { 913758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick setVmPolicy(new VmPolicy.Builder().detectAll().penaltyDropBox().build()); 914c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick setCloseGuardEnabled(vmClosableObjectLeaksEnabled()); 915c1a968a8ed45181312f7d4bcdbba0cc8ddc201baBrad Fitzpatrick } 91650d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick return true; 91750d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick } 91850d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick 91950d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick /** 920b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * Used by the framework to make network usage on the main 921b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * thread a fatal error. 922b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * 923b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick * @hide 924b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick */ 925b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick public static void enableDeathOnNetwork() { 926b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick int oldPolicy = getThreadPolicyMask(); 927b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick int newPolicy = oldPolicy | DETECT_NETWORK | PENALTY_DEATH_ON_NETWORK; 928b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick setThreadPolicyMask(newPolicy); 929b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick } 930b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick 931b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick /** 9325b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Parses the BlockGuard policy mask out from the Exception's 9335b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * getMessage() String value. Kinda gross, but least 9345b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * invasive. :/ 9355b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * 936e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * Input is of the following forms: 937e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * "policy=137 violation=64" 938e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * "policy=137 violation=64 msg=Arbitrary text" 9395b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * 9405b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Returns 0 on failure, which is a valid policy, but not a 9415b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * valid policy during a violation (else there must've been 9425b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * some policy in effect to violate). 9435b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 9445b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static int parsePolicyFromMessage(String message) { 9455b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (message == null || !message.startsWith("policy=")) { 9465b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9475b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9485b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick int spaceIndex = message.indexOf(' '); 9495b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (spaceIndex == -1) { 9505b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9515b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9525b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick String policyString = message.substring(7, spaceIndex); 9535b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick try { 9545b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return Integer.valueOf(policyString).intValue(); 9555b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } catch (NumberFormatException e) { 9565b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9575b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9585b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9595b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 9605b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 9615b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Like parsePolicyFromMessage(), but returns the violation. 9625b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 9635b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static int parseViolationFromMessage(String message) { 9645b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (message == null) { 9655b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9665b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9675b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick int violationIndex = message.indexOf("violation="); 9685b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (violationIndex == -1) { 9695b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9705b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 971e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick int numberStartIndex = violationIndex + "violation=".length(); 972e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick int numberEndIndex = message.indexOf(' ', numberStartIndex); 973e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick if (numberEndIndex == -1) { 974e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick numberEndIndex = message.length(); 975e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 976e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick String violationString = message.substring(numberStartIndex, numberEndIndex); 9775b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick try { 9785b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return Integer.valueOf(violationString).intValue(); 9795b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } catch (NumberFormatException e) { 9805b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 9815b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9825b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9835b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 984191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick private static final ThreadLocal<ArrayList<ViolationInfo>> violationsBeingTimed = 985191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick new ThreadLocal<ArrayList<ViolationInfo>>() { 986191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick @Override protected ArrayList<ViolationInfo> initialValue() { 987191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return new ArrayList<ViolationInfo>(); 988191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 989191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick }; 990191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick 991bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // Note: only access this once verifying the thread has a Looper. 992bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick private static final ThreadLocal<Handler> threadHandler = new ThreadLocal<Handler>() { 993bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick @Override protected Handler initialValue() { 994bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick return new Handler(); 995bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick } 996bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick }; 997bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick 998191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick private static boolean tooManyViolationsThisLoop() { 999191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return violationsBeingTimed.get().size() >= MAX_OFFENSES_PER_LOOP; 1000191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1001191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick 1002438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick private static class AndroidBlockGuardPolicy implements BlockGuard.Policy { 1003438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick private int mPolicyMask; 100446d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 100546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Map from violation stacktrace hashcode -> uptimeMillis of 100646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // last violation. No locking needed, as this is only 100746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // accessed by the same thread. 100846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick private final HashMap<Integer, Long> mLastViolationTime = new HashMap<Integer, Long>(); 1009438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1010438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public AndroidBlockGuardPolicy(final int policyMask) { 1011438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick mPolicyMask = policyMask; 1012438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1013438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 10145b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick @Override 10155b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public String toString() { 10165b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return "AndroidBlockGuardPolicy; mPolicyMask=" + mPolicyMask; 10175b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 10185b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 1019438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 1020438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public int getPolicyMask() { 1021438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return mPolicyMask; 1022438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1023438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1024438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 1025438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void onWriteToDisk() { 102632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((mPolicyMask & DETECT_DISK_WRITE) == 0) { 1027438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return; 1028438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1029191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 1030191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return; 1031191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1032cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeDiskWriteViolation(mPolicyMask); 1033cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick e.fillInStackTrace(); 1034cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick startHandlingViolationException(e); 1035438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1036438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1037e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // Not part of BlockGuard.Policy; just part of StrictMode: 1038e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick void onCustomSlowCall(String name) { 1039e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick if ((mPolicyMask & DETECT_CUSTOM) == 0) { 1040e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return; 1041e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1042e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 1043e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return; 1044e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1045e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeCustomViolation(mPolicyMask, name); 1046e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick e.fillInStackTrace(); 1047e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick startHandlingViolationException(e); 1048e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1049e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick 1050438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 1051438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void onReadFromDisk() { 105232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((mPolicyMask & DETECT_DISK_READ) == 0) { 1053438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return; 1054438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1055191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 1056191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return; 1057191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1058cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeDiskReadViolation(mPolicyMask); 1059cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick e.fillInStackTrace(); 1060cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick startHandlingViolationException(e); 1061438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1062438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1063438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 1064438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void onNetwork() { 106532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((mPolicyMask & DETECT_NETWORK) == 0) { 1066438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return; 1067438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1068b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick if ((mPolicyMask & PENALTY_DEATH_ON_NETWORK) != 0) { 1069b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick throw new NetworkOnMainThreadException(); 1070b6e18412af35bf724298796eed65ef1fbbe1925eBrad Fitzpatrick } 1071191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 1072191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return; 1073191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 1074cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeNetworkViolation(mPolicyMask); 1075cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick e.fillInStackTrace(); 1076cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick startHandlingViolationException(e); 1077438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1078438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1079438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void setPolicyMask(int policyMask) { 1080438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick mPolicyMask = policyMask; 1081438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1082438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 10835b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Start handling a violation that just started and hasn't 10845b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // actually run yet (e.g. no disk write or network operation 10855b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // has yet occurred). This sees if we're in an event loop 10865b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // thread and, if so, uses it to roughly measure how long the 10875b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // violation took. 10885b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick void startHandlingViolationException(BlockGuard.BlockGuardPolicyException e) { 1089cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick final ViolationInfo info = new ViolationInfo(e, e.getPolicy()); 1090cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.violationUptimeMillis = SystemClock.uptimeMillis(); 1091cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick handleViolationWithTimingAttempt(info); 1092cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1093438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1094cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // Attempts to fill in the provided ViolationInfo's 1095cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // durationMillis field if this thread has a Looper we can use 1096cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // to measure with. We measure from the time of violation 1097cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // until the time the looper is idle again (right before 1098cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // the next epoll_wait) 1099cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick void handleViolationWithTimingAttempt(final ViolationInfo info) { 1100438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick Looper looper = Looper.myLooper(); 1101cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1102cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // Without a Looper, we're unable to time how long the 1103cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // violation takes place. This case should be rare, as 1104cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // most users will care about timing violations that 1105cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // happen on their main UI thread. Note that this case is 1106cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // also hit when a violation takes place in a Binder 1107cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // thread, in "gather" mode. In this case, the duration 1108cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // of the violation is computed by the ultimate caller and 1109cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // its Looper, if any. 11104e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // 11114e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // Also, as a special short-cut case when the only penalty 11124e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // bit is death, we die immediately, rather than timing 11134e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // the violation's duration. This makes it convenient to 11144e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // use in unit tests too, rather than waiting on a Looper. 11154e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // 1116cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // TODO: if in gather mode, ignore Looper.myLooper() and always 1117cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // go into this immediate mode? 11184e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick if (looper == null || 11194e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick (info.policy & PENALTY_MASK) == PENALTY_DEATH) { 1120cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.durationMillis = -1; // unknown (redundant, already set) 1121cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick handleViolation(info); 1122cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick return; 1123438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1124438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1125cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick final ArrayList<ViolationInfo> records = violationsBeingTimed.get(); 1126191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (records.size() >= MAX_OFFENSES_PER_LOOP) { 1127cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // Not worth measuring. Too many offenses in one loop. 1128cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick return; 1129cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1130cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick records.add(info); 1131cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (records.size() > 1) { 1132cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // There's already been a violation this loop, so we've already 1133cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // registered an idle handler to process the list of violations 1134cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // at the end of this Looper's loop. 1135cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick return; 1136cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1137cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 11386804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick final IWindowManager windowManager = (info.policy & PENALTY_FLASH) != 0 ? 1139cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick sWindowManager.get() : null; 11406804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick if (windowManager != null) { 11416804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick try { 11426804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick windowManager.showStrictModeViolation(true); 11436804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick } catch (RemoteException unused) { 11446804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick } 11456804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick } 11466804433b0af50f33a338307ae8ddb50bc49e886bBrad Fitzpatrick 1147bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // We post a runnable to a Handler (== delay 0 ms) for 1148bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // measuring the end time of a violation instead of using 1149bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // an IdleHandler (as was previously used) because an 1150bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // IdleHandler may not run for quite a long period of time 1151bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // if an ongoing animation is happening and continually 1152bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // posting ASAP (0 ms) animation steps. Animations are 1153bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // throttled back to 60fps via SurfaceFlinger/View 1154bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // invalidates, _not_ by posting frame updates every 16 1155bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // milliseconds. 1156bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick threadHandler.get().post(new Runnable() { 1157bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick public void run() { 1158cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick long loopFinishTime = SystemClock.uptimeMillis(); 1159bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick 1160bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // Note: we do this early, before handling the 1161bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // violation below, as handling the violation 1162bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // may include PENALTY_DEATH and we don't want 1163bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick // to keep the red border on. 1164bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick if (windowManager != null) { 1165bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick try { 1166bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick windowManager.showStrictModeViolation(false); 1167bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick } catch (RemoteException unused) { 1168bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick } 1169bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick } 1170bea168c09d173fb99cfc91c562c4a497a5e7d2d2Brad Fitzpatrick 1171cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick for (int n = 0; n < records.size(); ++n) { 1172cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ViolationInfo v = records.get(n); 1173cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick v.violationNumThisLoop = n + 1; 1174cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick v.durationMillis = 1175cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick (int) (loopFinishTime - v.violationUptimeMillis); 1176cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick handleViolation(v); 1177cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1178cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick records.clear(); 1179cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1180cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick }); 11815b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1182438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 11835b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Note: It's possible (even quite likely) that the 11845b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // thread-local policy mask has changed from the time the 11855b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // violation fired and now (after the violating code ran) due 11865b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // to people who push/pop temporary policy in regions of code, 11875b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // hence the policy being passed around. 1188cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick void handleViolation(final ViolationInfo info) { 1189cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (info == null || info.crashInfo == null || info.crashInfo.stackTrace == null) { 1190cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick Log.wtf(TAG, "unexpected null stacktrace"); 11915b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return; 11925b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1193438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1194cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (LOG_V) Log.d(TAG, "handleViolation; policy=" + info.policy); 119546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1196cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_GATHER) != 0) { 1197cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ArrayList<ViolationInfo> violations = gatheredViolations.get(); 1198703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick if (violations == null) { 1199cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violations = new ArrayList<ViolationInfo>(1); 1200703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick gatheredViolations.set(violations); 1201703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } else if (violations.size() >= 5) { 12025b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Too many. In a loop or something? Don't gather them all. 12035b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return; 12045b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1205cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick for (ViolationInfo previous : violations) { 1206cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (info.crashInfo.stackTrace.equals(previous.crashInfo.stackTrace)) { 12075b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Duplicate. Don't log. 12085b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return; 12095b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 12105b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1211cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violations.add(info); 1212727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick return; 1213727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } 1214727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 121546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Not perfect, but fast and good enough for dup suppression. 1216f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick Integer crashFingerprint = info.hashCode(); 121746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick long lastViolationTime = 0; 121846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick if (mLastViolationTime.containsKey(crashFingerprint)) { 121946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick lastViolationTime = mLastViolationTime.get(crashFingerprint); 122046d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 122146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick long now = SystemClock.uptimeMillis(); 122246d42387464a651268648659e91d022566d4844cBrad Fitzpatrick mLastViolationTime.put(crashFingerprint, now); 122346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick long timeSinceLastViolationMillis = lastViolationTime == 0 ? 122446d42387464a651268648659e91d022566d4844cBrad Fitzpatrick Long.MAX_VALUE : (now - lastViolationTime); 122546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1226cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_LOG) != 0 && 122746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick timeSinceLastViolationMillis > MIN_LOG_INTERVAL_MS) { 1228cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (info.durationMillis != -1) { 12295b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick Log.d(TAG, "StrictMode policy violation; ~duration=" + 1230cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.durationMillis + " ms: " + info.crashInfo.stackTrace); 1231438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } else { 1232cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick Log.d(TAG, "StrictMode policy violation: " + info.crashInfo.stackTrace); 1233438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1234438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1235438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 123671678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // The violationMaskSubset, passed to ActivityManager, is a 123746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // subset of the original StrictMode policy bitmask, with 123846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // only the bit violated and penalty bits to be executed 123946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // by the ActivityManagerService remaining set. 1240cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick int violationMaskSubset = 0; 124146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1242cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_DIALOG) != 0 && 124346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick timeSinceLastViolationMillis > MIN_DIALOG_INTERVAL_MS) { 1244cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset |= PENALTY_DIALOG; 124546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 124646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1247cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_DROPBOX) != 0 && lastViolationTime == 0) { 1248cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset |= PENALTY_DROPBOX; 124946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 125046d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 1251cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (violationMaskSubset != 0) { 1252cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick int violationBit = parseViolationFromMessage(info.crashInfo.exceptionMessage); 1253cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset |= violationBit; 125432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int savedPolicyMask = getThreadPolicyMask(); 125571678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick 125671678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick final boolean justDropBox = (info.policy & PENALTY_MASK) == PENALTY_DROPBOX; 125771678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick if (justDropBox) { 125871678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // If all we're going to ask the activity manager 125971678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // to do is dropbox it (the common case during 126071678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // platform development), we can avoid doing this 126171678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // call synchronously which Binder data suggests 126271678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // isn't always super fast, despite the implementation 126371678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // in the ActivityManager trying to be mostly async. 1264bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick dropboxViolationAsync(violationMaskSubset, info); 126571678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick return; 126671678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick } 126771678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick 126871678ddcc45d9cd4557f3bed8bba5382bf36b68bBrad Fitzpatrick // Normal synchronous call to the ActivityManager. 1269438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick try { 1270727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // First, remove any policy before we call into the Activity Manager, 1271727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // otherwise we'll infinite recurse as we try to log policy violations 1272727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // to disk, thus violating policy, thus requiring logging, etc... 1273727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // We restore the current policy below, in the finally block. 127432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(0); 1275727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 1276438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick ActivityManagerNative.getDefault().handleApplicationStrictModeViolation( 1277438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick RuntimeInit.getApplicationObject(), 1278cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset, 1279cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info); 1280438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } catch (RemoteException e) { 128146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick Log.e(TAG, "RemoteException trying to handle StrictMode violation", e); 1282727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } finally { 1283727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // Restore the policy. 128432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(savedPolicyMask); 1285438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1286438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1287438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 1288cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_DEATH) != 0) { 12894e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick executeDeathPenalty(info); 1290438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1291438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1292438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 1293727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 12944e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick private static void executeDeathPenalty(ViolationInfo info) { 12954e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick int violationBit = parseViolationFromMessage(info.crashInfo.exceptionMessage); 12964e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick throw new StrictModeViolation(info.policy, violationBit, null); 12974e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 12984e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick 1299bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick /** 1300bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * In the common case, as set by conditionallyEnableDebugLogging, 1301bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * we're just dropboxing any violations but not showing a dialog, 1302bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * not loggging, and not killing the process. In these cases we 1303bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * don't need to do a synchronous call to the ActivityManager. 1304bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * This is used by both per-thread and vm-wide violations when 1305bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick * applicable. 1306bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick */ 1307bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick private static void dropboxViolationAsync( 1308bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick final int violationMaskSubset, final ViolationInfo info) { 1309bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick int outstanding = sDropboxCallsInFlight.incrementAndGet(); 1310bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (outstanding > 20) { 1311bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // What's going on? Let's not make make the situation 1312bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // worse and just not log. 1313bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick sDropboxCallsInFlight.decrementAndGet(); 1314bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick return; 1315bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 1316bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 1317bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (LOG_V) Log.d(TAG, "Dropboxing async; in-flight=" + outstanding); 1318bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 1319bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick new Thread("callActivityManagerForStrictModeDropbox") { 1320bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick public void run() { 1321bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 1322bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick try { 13231065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick IActivityManager am = ActivityManagerNative.getDefault(); 13241065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick if (am == null) { 13251065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick Log.d(TAG, "No activity manager; failed to Dropbox violation."); 13261065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick } else { 13271065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick am.handleApplicationStrictModeViolation( 13281065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick RuntimeInit.getApplicationObject(), 13291065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick violationMaskSubset, 13301065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick info); 13311065685400335ef8c1220f34b4e896e7da603789Brad Fitzpatrick } 1332bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } catch (RemoteException e) { 1333bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick Log.e(TAG, "RemoteException handling StrictMode violation", e); 1334bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 1335bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick int outstanding = sDropboxCallsInFlight.decrementAndGet(); 1336bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (LOG_V) Log.d(TAG, "Dropbox complete; in-flight=" + outstanding); 1337bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 1338bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick }.start(); 1339bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 1340bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 13414b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom private static class AndroidCloseGuardReporter implements CloseGuard.Reporter { 13424b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom public void report (String message, Throwable allocationSite) { 13434b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom onVmPolicyViolation(message, allocationSite); 13444b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 13454b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 13464b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom 1347727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick /** 13485b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Called from Parcel.writeNoException() 13495b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 13505b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /* package */ static boolean hasGatheredViolations() { 1351703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick return gatheredViolations.get() != null; 1352703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } 1353703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick 1354703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick /** 1355703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * Called from Parcel.writeException(), so we drop this memory and 1356703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * don't incorrectly attribute it to the wrong caller on the next 1357703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * Binder call on this thread. 1358703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick */ 1359703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick /* package */ static void clearGatheredViolations() { 1360703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick gatheredViolations.set(null); 13615b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 13625b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 13635b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 1364bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * @hide 1365bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick */ 1366bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public static void conditionallyCheckInstanceCounts() { 1367bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick VmPolicy policy = getVmPolicy(); 1368bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (policy.classInstanceLimit.size() == 0) { 1369bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick return; 1370bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1371bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick Runtime.getRuntime().gc(); 1372bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // Note: classInstanceLimit is immutable, so this is lock-free 1373bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick for (Class klass : policy.classInstanceLimit.keySet()) { 1374bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick int limit = policy.classInstanceLimit.get(klass); 1375bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick long instances = VMDebug.countInstancesOfClass(klass, false); 1376bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (instances <= limit) { 1377bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick continue; 1378bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1379bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick Throwable tr = new InstanceCountViolation(klass, instances, limit); 1380bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick onVmPolicyViolation(tr.getMessage(), tr); 1381bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1382bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1383bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 1384bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static long sLastInstanceCountCheckMillis = 0; 1385bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static boolean sIsIdlerRegistered = false; // guarded by sProcessIdleHandler 1386bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static final MessageQueue.IdleHandler sProcessIdleHandler = 1387bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick new MessageQueue.IdleHandler() { 1388bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public boolean queueIdle() { 1389bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick long now = SystemClock.uptimeMillis(); 1390bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (now - sLastInstanceCountCheckMillis > 30 * 1000) { 1391bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick sLastInstanceCountCheckMillis = now; 1392bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick conditionallyCheckInstanceCounts(); 1393bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1394bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick return true; 1395bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1396bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick }; 1397bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 1398bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick /** 139932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Sets the policy for what actions in the VM process (on any 140032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * thread) should be detected, as well as the penalty if such 140132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * actions occur. 140232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 140332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @param policy the policy to put into place 140432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 140532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static void setVmPolicy(final VmPolicy policy) { 1406758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick sVmPolicy = policy; 140732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick sVmPolicyMask = policy.mask; 14084b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom setCloseGuardEnabled(vmClosableObjectLeaksEnabled()); 1409bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 1410bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick Looper looper = Looper.getMainLooper(); 1411bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (looper != null) { 1412bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick MessageQueue mq = looper.mQueue; 1413bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick synchronized (sProcessIdleHandler) { 1414bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (policy.classInstanceLimit.size() == 0) { 1415bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mq.removeIdleHandler(sProcessIdleHandler); 1416bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } else if (!sIsIdlerRegistered) { 1417bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mq.addIdleHandler(sProcessIdleHandler); 1418bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick sIsIdlerRegistered = true; 1419bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1420bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1421bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 142232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 142332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 142432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 142532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Gets the current VM policy. 142632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 142732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static VmPolicy getVmPolicy() { 1428758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return sVmPolicy; 142932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 143032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 143132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 143262a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * Enable the recommended StrictMode defaults, with violations just being logged. 143362a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * 143462a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * <p>This catches disk and network access on the main thread, as 1435fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * well as leaked SQLite cursors and unclosed resources. This is 1436fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * simply a wrapper around {@link #setVmPolicy} and {@link 1437fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * #setThreadPolicy}. 143862a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick */ 143962a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick public static void enableDefaults() { 144062a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder() 144162a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .detectAll() 144262a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .penaltyLog() 144362a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .build()); 144462a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder() 1445e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick .detectAll() 144662a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .penaltyLog() 144762a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .build()); 144862a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick } 144962a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick 145062a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick /** 145132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 145232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 145332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static boolean vmSqliteObjectLeaksEnabled() { 145432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return (sVmPolicyMask & DETECT_VM_CURSOR_LEAKS) != 0; 145532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 145632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 145732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 145832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 145932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 1460fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom public static boolean vmClosableObjectLeaksEnabled() { 1461fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom return (sVmPolicyMask & DETECT_VM_CLOSABLE_LEAKS) != 0; 1462fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom } 1463fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom 1464fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom /** 1465fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom * @hide 1466fd9ddd1a40efc801dc7512950cb9336967b6f775Brian Carlstrom */ 146732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static void onSqliteObjectLeaked(String message, Throwable originStack) { 14684b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom onVmPolicyViolation(message, originStack); 14694b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom } 14704b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom 1471bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // Map from VM violation fingerprint to uptime millis. 1472bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static final HashMap<Integer, Long> sLastVmViolationTime = new HashMap<Integer, Long>(); 1473bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 14744b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom /** 14754b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom * @hide 14764b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom */ 14774b9b7c38e8f52259f9d2f960072d35e8a1ab2129Brian Carlstrom public static void onVmPolicyViolation(String message, Throwable originStack) { 1478bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final boolean penaltyDropbox = (sVmPolicyMask & PENALTY_DROPBOX) != 0; 1479bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final boolean penaltyDeath = (sVmPolicyMask & PENALTY_DEATH) != 0; 1480bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final boolean penaltyLog = (sVmPolicyMask & PENALTY_LOG) != 0; 1481bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final ViolationInfo info = new ViolationInfo(originStack, sVmPolicyMask); 1482bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 1483bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final Integer fingerprint = info.hashCode(); 1484bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final long now = SystemClock.uptimeMillis(); 1485bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick long lastViolationTime = 0; 1486bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick long timeSinceLastViolationMillis = Long.MAX_VALUE; 1487bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick synchronized (sLastVmViolationTime) { 1488bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (sLastVmViolationTime.containsKey(fingerprint)) { 1489bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick lastViolationTime = sLastVmViolationTime.get(fingerprint); 1490bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick timeSinceLastViolationMillis = now - lastViolationTime; 1491bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1492bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (timeSinceLastViolationMillis > MIN_LOG_INTERVAL_MS) { 1493bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick sLastVmViolationTime.put(fingerprint, now); 1494bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 149532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 149632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 1497bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick Log.d(TAG, "Time since last vm violation: " + timeSinceLastViolationMillis); 1498bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 1499bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (penaltyLog && timeSinceLastViolationMillis > MIN_LOG_INTERVAL_MS) { 1500bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick Log.e(TAG, message, originStack); 1501bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1502bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 1503bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick int violationMaskSubset = PENALTY_DROPBOX | (ALL_VM_DETECT_BITS & sVmPolicyMask); 1504bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick 1505bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (penaltyDropbox && !penaltyDeath) { 1506bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // Common case for userdebug/eng builds. If no death and 1507bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // just dropboxing, we can do the ActivityManager call 1508bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick // asynchronously. 1509bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick dropboxViolationAsync(violationMaskSubset, info); 1510bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick return; 1511bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick } 151232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 1513bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (penaltyDropbox && lastViolationTime == 0) { 151432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // The violationMask, passed to ActivityManager, is a 151532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // subset of the original StrictMode policy bitmask, with 151632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // only the bit violated and penalty bits to be executed 151732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // by the ActivityManagerService remaining set. 151832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int savedPolicyMask = getThreadPolicyMask(); 151932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick try { 152032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // First, remove any policy before we call into the Activity Manager, 152132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // otherwise we'll infinite recurse as we try to log policy violations 152232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // to disk, thus violating policy, thus requiring logging, etc... 152332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // We restore the current policy below, in the finally block. 152432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(0); 152532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 152632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick ActivityManagerNative.getDefault().handleApplicationStrictModeViolation( 152732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick RuntimeInit.getApplicationObject(), 152832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick violationMaskSubset, 152932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick info); 153032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } catch (RemoteException e) { 153132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick Log.e(TAG, "RemoteException trying to handle StrictMode violation", e); 153232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } finally { 153332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // Restore the policy. 153432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(savedPolicyMask); 153532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 153632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 153732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 1538bee248769d51adb335b71b329b3d7813c5c71851Brad Fitzpatrick if (penaltyDeath) { 153932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick System.err.println("StrictMode VmPolicy violation with POLICY_DEATH; shutting down."); 154032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick Process.killProcess(Process.myPid()); 154132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick System.exit(10); 154232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 154332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 154432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 154532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 15465b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Called from Parcel.writeNoException() 15475b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 15485b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /* package */ static void writeGatheredViolationsToParcel(Parcel p) { 1549cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ArrayList<ViolationInfo> violations = gatheredViolations.get(); 1550703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick if (violations == null) { 1551703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick p.writeInt(0); 1552703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } else { 1553703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick p.writeInt(violations.size()); 1554703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick for (int i = 0; i < violations.size(); ++i) { 1555703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick violations.get(i).writeToParcel(p, 0 /* unused flags? */); 1556703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } 1557703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick if (LOG_V) Log.d(TAG, "wrote violations to response parcel; num=" + violations.size()); 1558703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick violations.clear(); // somewhat redundant, as we're about to null the threadlocal 15595b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1560703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick gatheredViolations.set(null); 15615b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 15625b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 15635b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static class LogStackTrace extends Exception {} 15645b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 15655b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 15665b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Called from Parcel.readException() when the exception is EX_STRICT_MODE_VIOLATIONS, 15675b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * we here read back all the encoded violations. 15685b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 15695b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /* package */ static void readAndHandleBinderCallViolations(Parcel p) { 15705b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Our own stack trace to append 15715b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick StringWriter sw = new StringWriter(); 1572cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick new LogStackTrace().printStackTrace(new PrintWriter(sw)); 15735b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick String ourStack = sw.toString(); 15745b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 157532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int policyMask = getThreadPolicyMask(); 1576cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick boolean currentlyGathering = (policyMask & PENALTY_GATHER) != 0; 15775b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 15785b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick int numViolations = p.readInt(); 15795b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick for (int i = 0; i < numViolations; ++i) { 15805b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (LOG_V) Log.d(TAG, "strict mode violation stacks read from binder call. i=" + i); 1581cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ViolationInfo info = new ViolationInfo(p, !currentlyGathering); 1582cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.crashInfo.stackTrace += "# via Binder call with stack:\n" + ourStack; 15835b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 15845b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (policy instanceof AndroidBlockGuardPolicy) { 1585cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ((AndroidBlockGuardPolicy) policy).handleViolationWithTimingAttempt(info); 15865b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 15875b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 15885b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 15895b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 15905b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 1591727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * Called from android_util_Binder.cpp's 1592727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * android_os_Parcel_enforceInterface when an incoming Binder call 1593727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * requires changing the StrictMode policy mask. The role of this 1594727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * function is to ask Binder for its current (native) thread-local 1595727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * policy value and synchronize it to libcore's (Java) 1596727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * thread-local policy value. 1597727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick */ 1598727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick private static void onBinderStrictModePolicyChange(int newPolicy) { 1599727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick setBlockGuardPolicy(newPolicy); 1600727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } 1601cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1602cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1603e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * A tracked, critical time span. (e.g. during an animation.) 1604e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1605e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * The object itself is a linked list node, to avoid any allocations 1606e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * during rapid span entries and exits. 1607e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1608e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * @hide 1609e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1610e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public static class Span { 1611e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private String mName; 1612e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private long mCreateMillis; 1613e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private Span mNext; 1614e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private Span mPrev; // not used when in freeList, only active 1615e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private final ThreadSpanState mContainerState; 1616e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1617e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick Span(ThreadSpanState threadState) { 1618e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick mContainerState = threadState; 1619e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1620e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 16211181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick // Empty constructor for the NO_OP_SPAN 16221181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick protected Span() { 16231181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick mContainerState = null; 16241181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick } 16251181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick 1626e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 1627e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * To be called when the critical span is complete (i.e. the 1628e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * animation is done animating). This can be called on any 1629e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * thread (even a different one from where the animation was 1630e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * taking place), but that's only a defensive implementation 1631e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * measure. It really makes no sense for you to call this on 1632e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * thread other than that where you created it. 1633e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1634e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * @hide 1635e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1636e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public void finish() { 1637e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick ThreadSpanState state = mContainerState; 1638e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick synchronized (state) { 1639e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (mName == null) { 1640e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // Duplicate finish call. Ignore. 1641e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick return; 1642e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1643e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1644e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // Remove ourselves from the active list. 1645e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (mPrev != null) { 1646e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick mPrev.mNext = mNext; 1647e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1648e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (mNext != null) { 1649e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick mNext.mPrev = mPrev; 1650e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1651e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (state.mActiveHead == this) { 1652e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mActiveHead = mNext; 1653e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1654e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 16551cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick state.mActiveSize--; 16561cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 16571cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (LOG_V) Log.d(TAG, "Span finished=" + mName + "; size=" + state.mActiveSize); 16581cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 1659e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mCreateMillis = -1; 1660e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mName = null; 1661e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mPrev = null; 1662e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mNext = null; 1663e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1664e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // Add ourselves to the freeList, if it's not already 1665e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // too big. 1666e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (state.mFreeListSize < 5) { 1667e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.mNext = state.mFreeListHead; 1668e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mFreeListHead = this; 1669e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mFreeListSize++; 1670e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1671e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1672e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1673e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1674e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 16751181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick // The no-op span that's used in user builds. 16761181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick private static final Span NO_OP_SPAN = new Span() { 16771181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick public void finish() { 16781181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick // Do nothing. 16791181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick } 16801181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick }; 16811181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick 1682e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 1683e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * Linked lists of active spans and a freelist. 1684e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1685e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * Locking notes: there's one of these structures per thread and 1686e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * all members of this structure (as well as the Span nodes under 1687e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * it) are guarded by the ThreadSpanState object instance. While 1688e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * in theory there'd be no locking required because it's all local 1689e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * per-thread, the finish() method above is defensive against 1690e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * people calling it on a different thread from where they created 1691e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * the Span, hence the locking. 1692e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1693e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private static class ThreadSpanState { 1694e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public Span mActiveHead; // doubly-linked list. 1695e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public int mActiveSize; 1696e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public Span mFreeListHead; // singly-linked list. only changes at head. 1697e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public int mFreeListSize; 1698e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1699e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1700e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick private static final ThreadLocal<ThreadSpanState> sThisThreadSpanState = 1701e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick new ThreadLocal<ThreadSpanState>() { 1702e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick @Override protected ThreadSpanState initialValue() { 1703e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick return new ThreadSpanState(); 1704e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1705e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick }; 1706e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1707cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick private static Singleton<IWindowManager> sWindowManager = new Singleton<IWindowManager>() { 1708cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick protected IWindowManager create() { 1709cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick return IWindowManager.Stub.asInterface(ServiceManager.getService("window")); 1710cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick } 1711cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick }; 1712cdcb73ef781b8f7d37d9f758409a0c7671517b37Brad Fitzpatrick 1713e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 1714e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * Enter a named critical span (e.g. an animation) 1715e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1716e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * <p>The name is an arbitary label (or tag) that will be applied 1717e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * to any strictmode violation that happens while this span is 1718e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * active. You must call finish() on the span when done. 1719e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1720e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * <p>This will never return null, but on devices without debugging 1721e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * enabled, this may return a dummy object on which the finish() 1722e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * method is a no-op. 1723e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1724e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * <p>TODO: add CloseGuard to this, verifying callers call finish. 1725e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * 1726e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * @hide 1727e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1728e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public static Span enterCriticalSpan(String name) { 17291181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick if (IS_USER_BUILD) { 17301181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick return NO_OP_SPAN; 17311181cbbfd7c913c51d9836272ad30cfe851c4699Brad Fitzpatrick } 1732e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (name == null || name.isEmpty()) { 1733e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick throw new IllegalArgumentException("name must be non-null and non-empty"); 1734e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1735e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick ThreadSpanState state = sThisThreadSpanState.get(); 1736e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick Span span = null; 1737e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick synchronized (state) { 1738e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (state.mFreeListHead != null) { 1739e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span = state.mFreeListHead; 1740e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mFreeListHead = span.mNext; 1741e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mFreeListSize--; 1742e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } else { 1743e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick // Shouldn't have to do this often. 1744e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span = new Span(state); 1745e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1746e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mName = name; 1747e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mCreateMillis = SystemClock.uptimeMillis(); 1748e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mNext = state.mActiveHead; 1749e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mPrev = null; 1750e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mActiveHead = span; 1751e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick state.mActiveSize++; 1752e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (span.mNext != null) { 1753e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick span.mNext.mPrev = span; 1754e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 17551cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (LOG_V) Log.d(TAG, "Span enter=" + name + "; size=" + state.mActiveSize); 1756e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1757e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick return span; 1758e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1759e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1760e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick /** 1761e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * For code to note that it's slow. This is a no-op unless the 1762e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * current thread's {@link android.os.StrictMode.ThreadPolicy} has 1763e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * {@link android.os.StrictMode.ThreadPolicy.Builder#detectCustomSlowCalls} 1764e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * enabled. 1765e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * 1766e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * @param name a short string for the exception stack trace that's 1767e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick * built if when this fires. 1768e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick */ 1769e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick public static void noteSlowCall(String name) { 1770e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 1771e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick if (!(policy instanceof AndroidBlockGuardPolicy)) { 1772e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick // StrictMode not enabled. 1773e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick return; 1774e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1775e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick ((AndroidBlockGuardPolicy) policy).onCustomSlowCall(name); 1776e36f9bf123c7cd07ce1007a16de564b2840ea1feBrad Fitzpatrick } 1777e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1778e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 17794e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 17804e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 17814e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public static void noteDiskRead() { 17824e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 17834e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick if (!(policy instanceof AndroidBlockGuardPolicy)) { 17844e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // StrictMode not enabled. 17854e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick return; 17864e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 17874e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick ((AndroidBlockGuardPolicy) policy).onReadFromDisk(); 17884e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 17894e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick 17904e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 17914e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick * @hide 17924e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick */ 17934e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick public static void noteDiskWrite() { 17944e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 17954e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick if (!(policy instanceof AndroidBlockGuardPolicy)) { 17964e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick // StrictMode not enabled. 17974e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick return; 17984e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 17994e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick ((AndroidBlockGuardPolicy) policy).onWriteToDisk(); 18004e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick } 18014e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick 18024e920f70f38d52d3a74c6a3133388a2e2cb6c175Brad Fitzpatrick /** 1803758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick * @hide 1804758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick */ 1805758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick public static void noteActivityClass(Class klass) { 1806758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if ((sVmPolicy.mask & DETECT_VM_ACTIVITY_LEAKS) == 0) { 1807758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return; 1808758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 1809758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick if (sVmPolicy.classInstanceLimit.containsKey(klass)) { 1810758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick return; 1811758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 1812758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick // Note: capping at 2, not 1, to give some breathing room. 1813758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick setVmPolicy(new VmPolicy.Builder(sVmPolicy).setClassInstanceLimit(klass, 2).build()); 1814758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick } 1815758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick 1816758035757f11a085a12b54daa9467f1d6bb251efBrad Fitzpatrick /** 1817cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Parcelable that gets sent in Binder call headers back to callers 1818cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * to report violations that happened during a cross-process call. 1819cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * 1820cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * @hide 1821cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1822cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public static class ViolationInfo { 1823cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1824cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Stack and other stuff info. 1825cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1826cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public final ApplicationErrorReport.CrashInfo crashInfo; 1827cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1828cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1829cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * The strict mode policy mask at the time of violation. 1830cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1831cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public final int policy; 1832cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1833cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1834cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * The wall time duration of the violation, when known. -1 when 1835cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * not known. 1836cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1837cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public int durationMillis = -1; 1838cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1839cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1840599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick * The number of animations currently running. 1841599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick */ 1842599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick public int numAnimationsRunning = 0; 1843599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick 1844599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick /** 1845e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * List of tags from active Span instances during this 1846e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick * violation, or null for none. 1847e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick */ 1848e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick public String[] tags; 1849e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick 1850e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick /** 1851cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Which violation number this was (1-based) since the last Looper loop, 1852cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * from the perspective of the root caller (if it crossed any processes 1853cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * via Binder calls). The value is 0 if the root caller wasn't on a Looper 1854cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * thread. 1855cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1856cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public int violationNumThisLoop; 1857cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1858cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1859cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * The time (in terms of SystemClock.uptimeMillis()) that the 1860cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * violation occurred. 1861cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1862cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public long violationUptimeMillis; 1863cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1864cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1865bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick * The action of the Intent being broadcast to somebody's onReceive 1866bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick * on this thread right now, or null. 1867bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick */ 1868bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick public String broadcastIntentAction; 1869bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick 1870bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick /** 1871bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * If this is a instance count violation, the number of instances in memory, 1872bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick * else -1. 1873bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick */ 1874bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public long numInstances = -1; 1875bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 1876bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick /** 1877cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an uninitialized instance of ViolationInfo 1878cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1879cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo() { 1880cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo = null; 1881cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick policy = 0; 1882cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1883cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1884cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1885cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an instance of ViolationInfo initialized from an exception. 1886cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1887cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo(Throwable tr, int policy) { 1888cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo = new ApplicationErrorReport.CrashInfo(tr); 1889cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationUptimeMillis = SystemClock.uptimeMillis(); 1890cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick this.policy = policy; 1891599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick this.numAnimationsRunning = ValueAnimator.getCurrentAnimationsCount(); 1892bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick Intent broadcastIntent = ActivityThread.getIntentBeingBroadcast(); 1893bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick if (broadcastIntent != null) { 1894bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick broadcastIntentAction = broadcastIntent.getAction(); 1895bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick } 1896e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick ThreadSpanState state = sThisThreadSpanState.get(); 1897bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (tr instanceof InstanceCountViolation) { 1898bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick this.numInstances = ((InstanceCountViolation) tr).mInstances; 1899bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1900e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick synchronized (state) { 1901e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick int spanActiveCount = state.mActiveSize; 1902e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (spanActiveCount > MAX_SPAN_TAGS) { 1903e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick spanActiveCount = MAX_SPAN_TAGS; 1904e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1905e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (spanActiveCount != 0) { 1906e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.tags = new String[spanActiveCount]; 1907e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick Span iter = state.mActiveHead; 1908e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick int index = 0; 1909e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick while (iter != null && index < spanActiveCount) { 1910e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick this.tags[index] = iter.mName; 1911e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick index++; 1912e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick iter = iter.mNext; 1913e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1914e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1915e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 1916cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1917cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1918f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick @Override 1919f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick public int hashCode() { 1920f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick int result = 17; 1921f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick result = 37 * result + crashInfo.stackTrace.hashCode(); 1922f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick if (numAnimationsRunning != 0) { 1923f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick result *= 37; 1924f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 1925f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick if (broadcastIntentAction != null) { 1926f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick result = 37 * result + broadcastIntentAction.hashCode(); 1927f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 1928f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick if (tags != null) { 1929f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick for (String tag : tags) { 1930f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick result = 37 * result + tag.hashCode(); 1931f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 1932f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 1933f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick return result; 1934f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick } 1935f3d86be6d7d2999cd6bae236817688490df7da71Brad Fitzpatrick 1936cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1937cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an instance of ViolationInfo initialized from a Parcel. 1938cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1939cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo(Parcel in) { 1940cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick this(in, false); 1941cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1942cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1943cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1944cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an instance of ViolationInfo initialized from a Parcel. 1945cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * 1946cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * @param unsetGatheringBit if true, the caller is the root caller 1947cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * and the gathering penalty should be removed. 1948cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1949cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo(Parcel in, boolean unsetGatheringBit) { 1950cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo = new ApplicationErrorReport.CrashInfo(in); 1951cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick int rawPolicy = in.readInt(); 1952cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (unsetGatheringBit) { 1953cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick policy = rawPolicy & ~PENALTY_GATHER; 1954cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } else { 1955cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick policy = rawPolicy; 1956cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1957cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick durationMillis = in.readInt(); 1958cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationNumThisLoop = in.readInt(); 1959599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick numAnimationsRunning = in.readInt(); 1960cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationUptimeMillis = in.readLong(); 1961bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick numInstances = in.readLong(); 1962bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick broadcastIntentAction = in.readString(); 1963e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick tags = in.readStringArray(); 1964cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1965cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1966cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1967cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Save a ViolationInfo instance to a parcel. 1968cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1969cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public void writeToParcel(Parcel dest, int flags) { 1970cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo.writeToParcel(dest, flags); 1971cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeInt(policy); 1972cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeInt(durationMillis); 1973cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeInt(violationNumThisLoop); 1974599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick dest.writeInt(numAnimationsRunning); 1975cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeLong(violationUptimeMillis); 1976bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick dest.writeLong(numInstances); 1977bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick dest.writeString(broadcastIntentAction); 1978e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick dest.writeStringArray(tags); 1979cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1980cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1981cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1982cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1983cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Dump a ViolationInfo instance to a Printer. 1984cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1985cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public void dump(Printer pw, String prefix) { 1986cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo.dump(pw, prefix); 1987cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "policy: " + policy); 1988cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (durationMillis != -1) { 1989cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "durationMillis: " + durationMillis); 1990cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1991bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick if (numInstances != -1) { 1992bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick pw.println(prefix + "numInstances: " + numInstances); 1993bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 1994cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (violationNumThisLoop != 0) { 1995cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "violationNumThisLoop: " + violationNumThisLoop); 1996cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1997599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick if (numAnimationsRunning != 0) { 1998599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick pw.println(prefix + "numAnimationsRunning: " + numAnimationsRunning); 1999599ca29986235e07f532c7b112507f6c39b5dba9Brad Fitzpatrick } 2000cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "violationUptimeMillis: " + violationUptimeMillis); 2001bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick if (broadcastIntentAction != null) { 2002bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick pw.println(prefix + "broadcastIntentAction: " + broadcastIntentAction); 2003bfb191998eba2ebc710ff9eb59480b10909ba4c9Brad Fitzpatrick } 2004e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick if (tags != null) { 2005e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick int index = 0; 2006e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick for (String tag : tags) { 2007e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick pw.println(prefix + "tag[" + (index++) + "]: " + tag); 2008e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2009e7520d89fe2c5dc9dd833ecd9769c981df855b61Brad Fitzpatrick } 2010cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2011cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 2012cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 2013bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 2014bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // Dummy throwable, for now, since we don't know when or where the 2015bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // leaked instances came from. We might in the future, but for 2016bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // now we suppress the stack trace because it's useless and/or 2017bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // misleading. 2018bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static class InstanceCountViolation extends Throwable { 2019bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final Class mClass; 2020bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final long mInstances; 2021bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick final int mLimit; 2022bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 2023bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick private static final StackTraceElement[] FAKE_STACK = new StackTraceElement[1]; 2024bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick static { 2025bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick FAKE_STACK[0] = new StackTraceElement("android.os.StrictMode", "setClassInstanceLimit", 2026bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick "StrictMode.java", 1); 2027bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 2028bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick 2029bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick public InstanceCountViolation(Class klass, long instances, int limit) { 2030bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick // Note: now including instances here, otherwise signatures would all be different. 2031bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick super(klass.toString() + "; limit=" + limit); 2032bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick setStackTrace(FAKE_STACK); 2033bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mClass = klass; 2034bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mInstances = instances; 2035bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick mLimit = limit; 2036bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 2037bfbe5771106a07f9c8e8685e402b1003db40526fBrad Fitzpatrick } 2038438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick} 2039