jbudorick | d79351a | 2015-08-26 06:36:59 +0900 | [diff] [blame] | 1 | // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | package org.chromium.base.multidex; |
| 6 | |
tedchoc | c1dad41 | 2015-11-26 06:16:11 +0900 | [diff] [blame^] | 7 | import android.app.ActivityManager; |
| 8 | import android.app.ActivityManager.RunningAppProcessInfo; |
jbudorick | d79351a | 2015-08-26 06:36:59 +0900 | [diff] [blame] | 9 | import android.content.Context; |
tedchoc | c1dad41 | 2015-11-26 06:16:11 +0900 | [diff] [blame^] | 10 | import android.content.pm.ApplicationInfo; |
| 11 | import android.content.pm.PackageManager; |
jbudorick | d79351a | 2015-08-26 06:36:59 +0900 | [diff] [blame] | 12 | import android.os.Build; |
| 13 | import android.os.Process; |
| 14 | import android.support.multidex.MultiDex; |
| 15 | |
| 16 | import org.chromium.base.Log; |
| 17 | import org.chromium.base.VisibleForTesting; |
| 18 | |
| 19 | import java.lang.reflect.InvocationTargetException; |
tedchoc | c1dad41 | 2015-11-26 06:16:11 +0900 | [diff] [blame^] | 20 | import java.lang.reflect.Method; |
jbudorick | d79351a | 2015-08-26 06:36:59 +0900 | [diff] [blame] | 21 | |
| 22 | /** |
| 23 | * Performs multidex installation for non-isolated processes. |
| 24 | */ |
| 25 | public class ChromiumMultiDex { |
| 26 | |
dgn | 894055e | 2015-10-14 19:29:49 +0900 | [diff] [blame] | 27 | private static final String TAG = "base_multidex"; |
jbudorick | d79351a | 2015-08-26 06:36:59 +0900 | [diff] [blame] | 28 | |
| 29 | /** |
tedchoc | c1dad41 | 2015-11-26 06:16:11 +0900 | [diff] [blame^] | 30 | * Suffix for the meta-data tag in the AndroidManifext.xml that determines whether loading |
| 31 | * secondary dexes should be skipped for a given process name. |
| 32 | */ |
| 33 | private static final String IGNORE_MULTIDEX_KEY = ".ignore_multidex"; |
| 34 | |
| 35 | /** |
jbudorick | 42cca5e | 2015-11-21 08:19:23 +0900 | [diff] [blame] | 36 | * Installs secondary dexes if possible/necessary. |
jbudorick | d79351a | 2015-08-26 06:36:59 +0900 | [diff] [blame] | 37 | * |
| 38 | * Isolated processes (e.g. renderer processes) can't load secondary dex files on |
| 39 | * K and below, so we don't even try in that case. |
| 40 | * |
jbudorick | 42cca5e | 2015-11-21 08:19:23 +0900 | [diff] [blame] | 41 | * In release builds, this is a no-op because: |
| 42 | * - multidex isn't necessary in release builds because we run proguard there and |
| 43 | * thus aren't threatening to hit the dex limit; and |
| 44 | * - calling MultiDex.install, even in the absence of secondary dexes, causes a |
| 45 | * significant regression in start-up time (crbug.com/525695). |
| 46 | * |
jbudorick | d79351a | 2015-08-26 06:36:59 +0900 | [diff] [blame] | 47 | * @param context The application context. |
| 48 | */ |
| 49 | @VisibleForTesting |
jbudorick | 42cca5e | 2015-11-21 08:19:23 +0900 | [diff] [blame] | 50 | #if defined(MULTIDEX_CONFIGURATION_Debug) |
jbudorick | d79351a | 2015-08-26 06:36:59 +0900 | [diff] [blame] | 51 | public static void install(Context context) { |
tedchoc | c1dad41 | 2015-11-26 06:16:11 +0900 | [diff] [blame^] | 52 | // TODO(jbudorick): Back out this version check once support for K & below works. |
| 53 | // http://crbug.com/512357 |
| 54 | if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP |
| 55 | && !shouldInstallMultiDex(context)) { |
| 56 | Log.i(TAG, "Skipping multidex installation: not needed for process."); |
| 57 | } else { |
| 58 | MultiDex.install(context); |
| 59 | Log.i(TAG, "Completed multidex installation."); |
jbudorick | d79351a | 2015-08-26 06:36:59 +0900 | [diff] [blame] | 60 | } |
| 61 | } |
| 62 | |
tedchoc | c1dad41 | 2015-11-26 06:16:11 +0900 | [diff] [blame^] | 63 | private static String getProcessName(Context context) { |
| 64 | try { |
| 65 | String currentProcessName = null; |
| 66 | int pid = android.os.Process.myPid(); |
| 67 | |
| 68 | ActivityManager manager = |
| 69 | (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); |
| 70 | for (RunningAppProcessInfo processInfo : manager.getRunningAppProcesses()) { |
| 71 | if (processInfo.pid == pid) { |
| 72 | currentProcessName = processInfo.processName; |
| 73 | break; |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | return currentProcessName; |
| 78 | } catch (SecurityException ex) { |
| 79 | return null; |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | // Determines whether MultiDex should be installed for the current process. Isolated |
| 84 | // Processes should skip MultiDex as they can not actually access the files on disk. |
| 85 | // Privileged processes need ot have all of their dependencies in the MainDex for |
| 86 | // performance reasons. |
| 87 | private static boolean shouldInstallMultiDex(Context context) { |
| 88 | try { |
| 89 | Method isIsolatedMethod = |
| 90 | android.os.Process.class.getMethod("isIsolated"); |
| 91 | Object retVal = isIsolatedMethod.invoke(null); |
| 92 | if (retVal != null && retVal instanceof Boolean && ((Boolean) retVal)) { |
| 93 | return false; |
| 94 | } |
| 95 | } catch (IllegalAccessException | IllegalArgumentException |
| 96 | | InvocationTargetException | NoSuchMethodException e) { |
| 97 | // Ignore and fall back to checking the app processes. |
| 98 | } |
| 99 | |
| 100 | String currentProcessName = getProcessName(context); |
| 101 | if (currentProcessName == null) return true; |
| 102 | |
| 103 | PackageManager packageManager = context.getPackageManager(); |
| 104 | try { |
| 105 | ApplicationInfo appInfo = packageManager.getApplicationInfo(context.getPackageName(), |
| 106 | PackageManager.GET_META_DATA); |
| 107 | return !appInfo.metaData.getBoolean(currentProcessName + IGNORE_MULTIDEX_KEY, false); |
| 108 | } catch (PackageManager.NameNotFoundException e) { |
| 109 | return true; |
| 110 | } |
jbudorick | d79351a | 2015-08-26 06:36:59 +0900 | [diff] [blame] | 111 | } |
jbudorick | 562aab6 | 2015-11-13 09:44:58 +0900 | [diff] [blame] | 112 | #else |
| 113 | public static void install(Context context) { |
| 114 | } |
| 115 | #endif |
jbudorick | d79351a | 2015-08-26 06:36:59 +0900 | [diff] [blame] | 116 | |
| 117 | } |