19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.os; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.net.LocalSocket; 20973b4663b0b5ee62006522bf4742af076096e548Narayan Kamathimport android.net.LocalSocketAddress; 2134385d352da19805ae948215e2edbeedd16b7941Elliott Hughesimport android.system.Os; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log; 23973b4663b0b5ee62006522bf4742af076096e548Narayan Kamathimport com.android.internal.os.Zygote; 24ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampeimport dalvik.system.VMRuntime; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.BufferedWriter; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.DataInputStream; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.IOException; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.OutputStreamWriter; 294444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamathimport java.nio.charset.StandardCharsets; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 314444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamathimport java.util.Arrays; 324444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamathimport java.util.List; 33406ec15647b7664cadadde41dbaaa10e298c582bJeff Hao 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/*package*/ class ZygoteStartFailedEx extends Exception { 3564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath ZygoteStartFailedEx(String s) { 3664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath super(s); 3764cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3964cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath ZygoteStartFailedEx(Throwable cause) { 4064cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath super(cause); 4164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } 4264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath 4364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath ZygoteStartFailedEx(String s, Throwable cause) { 4464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath super(s, cause); 4564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tools for managing OS processes. 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class Process { 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final String LOG_TAG = "Process"; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath /** 5564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath * @hide for internal use only. 5664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath */ 5764cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath public static final String ZYGOTE_SOCKET = "zygote"; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5964cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath /** 6064cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath * @hide for internal use only. 6164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath */ 6264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath public static final String SECONDARY_ZYGOTE_SOCKET = "zygote_secondary"; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 651cb2d0d4bba387665128c62c342e59103ea4be26Jeff Sharkey * Defines the root UID. 661cb2d0d4bba387665128c62c342e59103ea4be26Jeff Sharkey * @hide 671cb2d0d4bba387665128c62c342e59103ea4be26Jeff Sharkey */ 681cb2d0d4bba387665128c62c342e59103ea4be26Jeff Sharkey public static final int ROOT_UID = 0; 691cb2d0d4bba387665128c62c342e59103ea4be26Jeff Sharkey 701cb2d0d4bba387665128c62c342e59103ea4be26Jeff Sharkey /** 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the UID/GID under which system code runs. 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int SYSTEM_UID = 1000; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the UID/GID under which the telephony code runs. 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PHONE_UID = 1001; 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 81854060af30f928c0a65591e9c8314ae17056e6b8Dianne Hackborn * Defines the UID/GID for the user shell. 82854060af30f928c0a65591e9c8314ae17056e6b8Dianne Hackborn * @hide 83854060af30f928c0a65591e9c8314ae17056e6b8Dianne Hackborn */ 84854060af30f928c0a65591e9c8314ae17056e6b8Dianne Hackborn public static final int SHELL_UID = 2000; 85854060af30f928c0a65591e9c8314ae17056e6b8Dianne Hackborn 86854060af30f928c0a65591e9c8314ae17056e6b8Dianne Hackborn /** 87d42685d5de1dbd6d75b48d42418f370adaa4daefMike Lockwood * Defines the UID/GID for the log group. 88d42685d5de1dbd6d75b48d42418f370adaa4daefMike Lockwood * @hide 89d42685d5de1dbd6d75b48d42418f370adaa4daefMike Lockwood */ 90d42685d5de1dbd6d75b48d42418f370adaa4daefMike Lockwood public static final int LOG_UID = 1007; 91d42685d5de1dbd6d75b48d42418f370adaa4daefMike Lockwood 92d42685d5de1dbd6d75b48d42418f370adaa4daefMike Lockwood /** 93d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani * Defines the UID/GID for the WIFI supplicant process. 94d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani * @hide 95d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani */ 96d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani public static final int WIFI_UID = 1010; 97d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani 98d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani /** 998b7d1b4d4a33e9429c5cedaa6317efcaad95da68Glenn Kasten * Defines the UID/GID for the mediaserver process. 1008b7d1b4d4a33e9429c5cedaa6317efcaad95da68Glenn Kasten * @hide 1018b7d1b4d4a33e9429c5cedaa6317efcaad95da68Glenn Kasten */ 1028b7d1b4d4a33e9429c5cedaa6317efcaad95da68Glenn Kasten public static final int MEDIA_UID = 1013; 1038b7d1b4d4a33e9429c5cedaa6317efcaad95da68Glenn Kasten 1048b7d1b4d4a33e9429c5cedaa6317efcaad95da68Glenn Kasten /** 1055294a2fc2f401cd248a4bc3f0f9ee1e2854f4e9aJeff Sharkey * Defines the UID/GID for the DRM process. 1065294a2fc2f401cd248a4bc3f0f9ee1e2854f4e9aJeff Sharkey * @hide 1075294a2fc2f401cd248a4bc3f0f9ee1e2854f4e9aJeff Sharkey */ 1085294a2fc2f401cd248a4bc3f0f9ee1e2854f4e9aJeff Sharkey public static final int DRM_UID = 1019; 1095294a2fc2f401cd248a4bc3f0f9ee1e2854f4e9aJeff Sharkey 1105294a2fc2f401cd248a4bc3f0f9ee1e2854f4e9aJeff Sharkey /** 11126993b37d525fd64efebd51daec1b4abfebd8a74Kenny Root * Defines the UID/GID for the group that controls VPN services. 11226993b37d525fd64efebd51daec1b4abfebd8a74Kenny Root * @hide 11326993b37d525fd64efebd51daec1b4abfebd8a74Kenny Root */ 11426993b37d525fd64efebd51daec1b4abfebd8a74Kenny Root public static final int VPN_UID = 1016; 11526993b37d525fd64efebd51daec1b4abfebd8a74Kenny Root 11626993b37d525fd64efebd51daec1b4abfebd8a74Kenny Root /** 117cd0e839a2448deea50f79bddeba782c546b33893Nick Pelly * Defines the UID/GID for the NFC service process. 118cd0e839a2448deea50f79bddeba782c546b33893Nick Pelly * @hide 119cd0e839a2448deea50f79bddeba782c546b33893Nick Pelly */ 120a5cb9f42174a52afbeb7e33dab64282f52f8cedbNick Pelly public static final int NFC_UID = 1027; 121cd0e839a2448deea50f79bddeba782c546b33893Nick Pelly 122cd0e839a2448deea50f79bddeba782c546b33893Nick Pelly /** 1231abb1cb3a8fe17f7866150604c2fd73751da787eJaikumar Ganesh * Defines the UID/GID for the Bluetooth service process. 1241abb1cb3a8fe17f7866150604c2fd73751da787eJaikumar Ganesh * @hide 1251abb1cb3a8fe17f7866150604c2fd73751da787eJaikumar Ganesh */ 1261abb1cb3a8fe17f7866150604c2fd73751da787eJaikumar Ganesh public static final int BLUETOOTH_UID = 1002; 1271abb1cb3a8fe17f7866150604c2fd73751da787eJaikumar Ganesh 1281abb1cb3a8fe17f7866150604c2fd73751da787eJaikumar Ganesh /** 129dcaa10cd361a543cfa93bbb5c53444f437bd07a4Mike Lockwood * Defines the GID for the group that allows write access to the internal media storage. 130dcaa10cd361a543cfa93bbb5c53444f437bd07a4Mike Lockwood * @hide 131dcaa10cd361a543cfa93bbb5c53444f437bd07a4Mike Lockwood */ 132dcaa10cd361a543cfa93bbb5c53444f437bd07a4Mike Lockwood public static final int MEDIA_RW_GID = 1023; 133dcaa10cd361a543cfa93bbb5c53444f437bd07a4Mike Lockwood 134dcaa10cd361a543cfa93bbb5c53444f437bd07a4Mike Lockwood /** 135184a0100abc431fc3d6d8dd1b20212b84958cadaJeff Sharkey * Access to installed package details 136184a0100abc431fc3d6d8dd1b20212b84958cadaJeff Sharkey * @hide 137184a0100abc431fc3d6d8dd1b20212b84958cadaJeff Sharkey */ 138184a0100abc431fc3d6d8dd1b20212b84958cadaJeff Sharkey public static final int PACKAGE_INFO_GID = 1032; 139184a0100abc431fc3d6d8dd1b20212b84958cadaJeff Sharkey 140184a0100abc431fc3d6d8dd1b20212b84958cadaJeff Sharkey /** 14108cfaf672604422dd355d6703aec78f3aa5ee74eTorne (Richard Coles) * Defines the UID/GID for the shared RELRO file updater process. 14208cfaf672604422dd355d6703aec78f3aa5ee74eTorne (Richard Coles) * @hide 14308cfaf672604422dd355d6703aec78f3aa5ee74eTorne (Richard Coles) */ 14408cfaf672604422dd355d6703aec78f3aa5ee74eTorne (Richard Coles) public static final int SHARED_RELRO_UID = 1037; 14508cfaf672604422dd355d6703aec78f3aa5ee74eTorne (Richard Coles) 14608cfaf672604422dd355d6703aec78f3aa5ee74eTorne (Richard Coles) /** 147ed0ea40a41aae8e65bc189efe6b631ca78259383Andy Hung * Defines the UID/GID for the audioserver process. 148ed0ea40a41aae8e65bc189efe6b631ca78259383Andy Hung * @hide 149ed0ea40a41aae8e65bc189efe6b631ca78259383Andy Hung */ 150ed0ea40a41aae8e65bc189efe6b631ca78259383Andy Hung public static final int AUDIOSERVER_UID = 1041; 151ed0ea40a41aae8e65bc189efe6b631ca78259383Andy Hung 152ed0ea40a41aae8e65bc189efe6b631ca78259383Andy Hung /** 15375cade0a5fd5ec432870de9977f81091ab389423Chien-Yu Chen * Defines the UID/GID for the cameraserver process 15475cade0a5fd5ec432870de9977f81091ab389423Chien-Yu Chen * @hide 15575cade0a5fd5ec432870de9977f81091ab389423Chien-Yu Chen */ 156b8b4e85879e93db2ba7821b7fe54710cb6a6de71Chien-Yu Chen public static final int CAMERASERVER_UID = 1047; 15775cade0a5fd5ec432870de9977f81091ab389423Chien-Yu Chen 15875cade0a5fd5ec432870de9977f81091ab389423Chien-Yu Chen /** 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the start of a range of UIDs (and GIDs), going from this 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * number to {@link #LAST_APPLICATION_UID} that are reserved for assigning 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to applications. 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int FIRST_APPLICATION_UID = 10000; 164184a0100abc431fc3d6d8dd1b20212b84958cadaJeff Sharkey 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Last of application-specific UIDs starting at 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #FIRST_APPLICATION_UID}. 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16921fbd1f7da53dc044737803dccddf8099f1fc1e9Dianne Hackborn public static final int LAST_APPLICATION_UID = 19999; 170a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn 171a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn /** 172a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn * First uid used for fully isolated sandboxed processes (with no permissions of their own) 173a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn * @hide 174a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn */ 175a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn public static final int FIRST_ISOLATED_UID = 99000; 176a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn 177a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn /** 178a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn * Last uid used for fully isolated sandboxed processes (with no permissions of their own) 179a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn * @hide 180a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn */ 181a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn public static final int LAST_ISOLATED_UID = 99999; 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 184e66b6890ee59d108ae5c608f6ec8d4ad20cb06a8Robin Lee * Defines the gid shared by all applications running under the same profile. 185e66b6890ee59d108ae5c608f6ec8d4ad20cb06a8Robin Lee * @hide 186e66b6890ee59d108ae5c608f6ec8d4ad20cb06a8Robin Lee */ 187e66b6890ee59d108ae5c608f6ec8d4ad20cb06a8Robin Lee public static final int SHARED_USER_GID = 9997; 188e66b6890ee59d108ae5c608f6ec8d4ad20cb06a8Robin Lee 189e66b6890ee59d108ae5c608f6ec8d4ad20cb06a8Robin Lee /** 190e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root * First gid for applications to share resources. Used when forward-locking 191e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root * is enabled but all UserHandles need to be able to read the resources. 192e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root * @hide 193e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root */ 194e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root public static final int FIRST_SHARED_APPLICATION_GID = 50000; 195e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root 196e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root /** 197e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root * Last gid for applications to share resources. Used when forward-locking 198e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root * is enabled but all UserHandles need to be able to read the resources. 199e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root * @hide 200e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root */ 201e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root public static final int LAST_SHARED_APPLICATION_GID = 59999; 202e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root 203e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root /** 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of application threads. 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_DEFAULT = 0; 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * *************************************** 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ** Keep in sync with utils/threads.h ** 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * *************************************** 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Lowest available thread priority. Only for those who really, really 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * don't want to run if anything else is happening. 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_LOWEST = 19; 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority background threads. This gives your thread a slightly 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * lower than normal priority, so that it will have less chance of impacting 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the responsiveness of the user interface. 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_BACKGROUND = 10; 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of threads that are currently running a user interface 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that the user is interacting with. Applications can not normally 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * change to this priority; the system will automatically adjust your 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * application threads as the user moves through the UI. 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_FOREGROUND = -2; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of system display threads, involved in updating 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the user interface. Applications can not 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * normally change to this priority. 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_DISPLAY = -4; 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of the most important display threads, for compositing 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the screen and retrieving input events. Applications can not normally 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * change to this priority. 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_URGENT_DISPLAY = -8; 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of audio threads. Applications can not normally 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * change to this priority. 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_AUDIO = -16; 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of the most important audio threads. 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Applications can not normally change to this priority. 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_URGENT_AUDIO = -19; 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Minimum increment to make a priority more favorable. 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_MORE_FAVORABLE = -1; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Minimum increment to make a priority less favorable. 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_LESS_FAVORABLE = +1; 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 295e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat /** 2966793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * Default scheduling policy 2976793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @hide 2986793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten */ 2996793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten public static final int SCHED_OTHER = 0; 3006793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 3016793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten /** 3026793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * First-In First-Out scheduling policy 3036793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @hide 3046793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten */ 3056793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten public static final int SCHED_FIFO = 1; 3066793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 3076793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten /** 3086793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * Round-Robin scheduling policy 3096793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @hide 3106793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten */ 3116793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten public static final int SCHED_RR = 2; 3126793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 3136793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten /** 3146793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * Batch scheduling policy 3156793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @hide 3166793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten */ 3176793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten public static final int SCHED_BATCH = 3; 3186793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 3196793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten /** 3206793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * Idle scheduling policy 3216793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @hide 3226793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten */ 3236793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten public static final int SCHED_IDLE = 5; 3246793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 325f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten // Keep in sync with SP_* constants of enum type SchedPolicy 326f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten // declared in system/core/include/cutils/sched_policy.h, 327f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten // except THREAD_GROUP_DEFAULT does not correspond to any SP_* value. 328f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten 3296793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten /** 330f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * Default thread group - 331f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * has meaning with setProcessGroup() only, cannot be used with setThreadGroup(). 332f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * When used with setProcessGroup(), the group of each thread in the process 333f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * is conditionally changed based on that thread's current priority, as follows: 334f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * threads with priority numerically less than THREAD_PRIORITY_BACKGROUND 335f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * are moved to foreground thread group. All other threads are left unchanged. 336e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @hide 337e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat */ 338f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten public static final int THREAD_GROUP_DEFAULT = -1; 339e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 340e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat /** 341f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * Background thread group - All threads in 342e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * this group are scheduled with a reduced share of the CPU. 343f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * Value is same as constant SP_BACKGROUND of enum SchedPolicy. 344f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * FIXME rename to THREAD_GROUP_BACKGROUND. 345e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @hide 346e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat */ 347f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten public static final int THREAD_GROUP_BG_NONINTERACTIVE = 0; 348e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 349e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat /** 350f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * Foreground thread group - All threads in 351f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * this group are scheduled with a normal share of the CPU. 352f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * Value is same as constant SP_FOREGROUND of enum SchedPolicy. 353f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * Not used at this level. 354e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @hide 355e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat **/ 356f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten private static final int THREAD_GROUP_FOREGROUND = 1; 357e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 35807b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten /** 35907b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * System thread group. 36007b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * @hide 36107b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten **/ 36207b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten public static final int THREAD_GROUP_SYSTEM = 2; 36307b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten 36407b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten /** 36507b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * Application audio thread group. 36607b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * @hide 36707b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten **/ 36807b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten public static final int THREAD_GROUP_AUDIO_APP = 3; 36907b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten 37007b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten /** 37107b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * System audio thread group. 37207b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * @hide 37307b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten **/ 37407b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten public static final int THREAD_GROUP_AUDIO_SYS = 4; 37507b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten 376ece6a22f00de4ab815588e2f7951203adcd2b9c4Tim Murray /** 377ece6a22f00de4ab815588e2f7951203adcd2b9c4Tim Murray * Thread group for top foreground app. 378ece6a22f00de4ab815588e2f7951203adcd2b9c4Tim Murray * @hide 379ece6a22f00de4ab815588e2f7951203adcd2b9c4Tim Murray **/ 380ece6a22f00de4ab815588e2f7951203adcd2b9c4Tim Murray public static final int THREAD_GROUP_TOP_APP = 5; 381ece6a22f00de4ab815588e2f7951203adcd2b9c4Tim Murray 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int SIGNAL_QUIT = 3; 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int SIGNAL_KILL = 9; 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int SIGNAL_USR1 = 10; 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 386d98885c128e7045da244098d82751da6e792d677Dianne Hackborn private static long sStartElapsedRealtime; 387d98885c128e7045da244098d82751da6e792d677Dianne Hackborn private static long sStartUptimeMillis; 388d98885c128e7045da244098d82751da6e792d677Dianne Hackborn 3894444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath /** 3904444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * State for communicating with the zygote process. 39164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath * 39264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath * @hide for internal use only. 3934444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath */ 39464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath public static class ZygoteState { 3954444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath final LocalSocket socket; 3964444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath final DataInputStream inputStream; 3974444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath final BufferedWriter writer; 3984444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath final List<String> abiList; 3994444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4004444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath boolean mClosed; 4014444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4024444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath private ZygoteState(LocalSocket socket, DataInputStream inputStream, 4034444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath BufferedWriter writer, List<String> abiList) { 4044444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath this.socket = socket; 4054444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath this.inputStream = inputStream; 4064444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath this.writer = writer; 4074444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath this.abiList = abiList; 4084444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4094444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 41064cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath public static ZygoteState connect(String socketAddress) throws IOException { 4114444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath DataInputStream zygoteInputStream = null; 4124444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath BufferedWriter zygoteWriter = null; 41364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath final LocalSocket zygoteSocket = new LocalSocket(); 4144444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 41564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath try { 41664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath zygoteSocket.connect(new LocalSocketAddress(socketAddress, 41764cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath LocalSocketAddress.Namespace.RESERVED)); 4184444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 41964cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath zygoteInputStream = new DataInputStream(zygoteSocket.getInputStream()); 4204444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 42164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath zygoteWriter = new BufferedWriter(new OutputStreamWriter( 42264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath zygoteSocket.getOutputStream()), 256); 42364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } catch (IOException ex) { 42464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath try { 42564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath zygoteSocket.close(); 42664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } catch (IOException ignore) { 4274444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4284444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 42964cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath throw ex; 4304444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4314444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4324444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath String abiListString = getAbiList(zygoteWriter, zygoteInputStream); 4334444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath Log.i("Zygote", "Process: zygote socket opened, supported ABIS: " + abiListString); 4344444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4354444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath return new ZygoteState(zygoteSocket, zygoteInputStream, zygoteWriter, 4364444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath Arrays.asList(abiListString.split(","))); 4374444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4384444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4394444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath boolean matches(String abi) { 4404444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath return abiList.contains(abi); 4414444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4424444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 44364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath public void close() { 4444444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath try { 4454444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath socket.close(); 4464444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } catch (IOException ex) { 4474444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath Log.e(LOG_TAG,"I/O exception on routine close", ex); 4484444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4494444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4504444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath mClosed = true; 4514444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4524444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4534444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath boolean isClosed() { 4544444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath return mClosed; 4554444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4564444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4574444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4584444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath /** 4594444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * The state of the connection to the primary zygote. 4604444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath */ 4614444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath static ZygoteState primaryZygoteState; 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4634444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath /** 4644444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * The state of the connection to the secondary zygote. 4654444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath */ 4664444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath static ZygoteState secondaryZygoteState; 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Start a new process. 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>If processes are enabled, a new process is created and the 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * static main() function of a <var>processClass</var> is executed there. 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The process will continue running after this function returns. 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>If processes are not enabled, a new thread in the caller's 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * process is created and main() of <var>processClass</var> called there. 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>The niceName parameter, if not an empty string, is a custom name to 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * give to the process instead of using processClass. This allows you to 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * make easily identifyable processes even if you are using the same base 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <var>processClass</var> to start them. 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param processClass The class to use as the process's main entry 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * point. 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param niceName A more readable name to use for the process. 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param uid The user-id under which the process will run. 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gid The group-id under which the process will run. 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gids Additional group-ids associated with the process. 489e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes * @param debugFlags Additional flags. 490e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes * @param targetSdkVersion The target SDK version for the app. 491bd19b9ee305c11d8aa3cbb105bf2d3a6b06389b5Stephen Smalley * @param seInfo null-ok SELinux information for the new process. 492ff0c470833b2cb4130a30895093630242d5f238dRamin Zaghi * @param abi non-null the ABI this app should be started with. 493aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe * @param instructionSet null-ok the instruction set to use. 4942eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu * @param appDataDir null-ok the data directory of the app. 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param zygoteArgs Additional arguments to supply to the zygote process. 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4973f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * @return An object that describes the result of the attempt to start the process. 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws RuntimeException on fatal start failure 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@hide} 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5023f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown public static final ProcessStartResult start(final String processClass, 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final String niceName, 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int uid, int gid, int[] gids, 5055b1ada2562c17921adf6a62ea62bcb445160983cJeff Sharkey int debugFlags, int mountExternal, 5065b1ada2562c17921adf6a62ea62bcb445160983cJeff Sharkey int targetSdkVersion, 50783d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley String seInfo, 508ff0c470833b2cb4130a30895093630242d5f238dRamin Zaghi String abi, 509aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe String instructionSet, 5102eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu String appDataDir, 51110e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown String[] zygoteArgs) { 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 51310e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown return startViaZygote(processClass, niceName, uid, gid, gids, 5144444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath debugFlags, mountExternal, targetSdkVersion, seInfo, 5152eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu abi, instructionSet, appDataDir, zygoteArgs); 51610e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown } catch (ZygoteStartFailedEx ex) { 51710e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown Log.e(LOG_TAG, 51810e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown "Starting VM process through Zygote failed"); 51910e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown throw new RuntimeException( 52010e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown "Starting VM process through Zygote failed", ex); 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** retry interval for opening a zygote socket */ 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int ZYGOTE_RETRY_MILLIS = 500; 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5284444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * Queries the zygote for the list of ABIS it supports. 5294444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * 5304444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * @throws ZygoteStartFailedEx if the query failed. 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5324444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath private static String getAbiList(BufferedWriter writer, DataInputStream inputStream) 53364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath throws IOException { 53464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath // Each query starts with the argument count (1 in this case) 53564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath writer.write("1"); 53664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath // ... followed by a new-line. 53764cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath writer.newLine(); 53864cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath // ... followed by our only argument. 53964cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath writer.write("--query-abi-list"); 54064cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath writer.newLine(); 54164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath writer.flush(); 54264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath 54364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath // The response is a length prefixed stream of ASCII bytes. 54464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath int numBytes = inputStream.readInt(); 54564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath byte[] bytes = new byte[numBytes]; 54664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath inputStream.readFully(bytes); 54764cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath 54864cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath return new String(bytes, StandardCharsets.US_ASCII); 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends an argument list to the zygote process, which starts a new child 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and returns the child's pid. Please note: the present implementation 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * replaces newlines in the argument list with spaces. 5554444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ZygoteStartFailedEx if process start failed for any reason 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5584444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath private static ProcessStartResult zygoteSendArgsAndGetResult( 5594444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath ZygoteState zygoteState, ArrayList<String> args) 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws ZygoteStartFailedEx { 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See com.android.internal.os.ZygoteInit.readArgumentList() 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Presently the wire format to the zygote process is: 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a) a count of arguments (argc, in essence) 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * b) a number of newline-separated argument strings equal to count 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * After the zygote process reads these it will write the pid of 5693f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * the child or -1 on failure, followed by boolean to 5703f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * indicate whether a wrapper process was used. 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5724444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath final BufferedWriter writer = zygoteState.writer; 5734444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath final DataInputStream inputStream = zygoteState.inputStream; 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5754444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath writer.write(Integer.toString(args.size())); 5764444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath writer.newLine(); 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sz = args.size(); 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < sz; i++) { 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String arg = args.get(i); 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (arg.indexOf('\n') >= 0) { 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ZygoteStartFailedEx( 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "embedded newlines not allowed"); 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5854444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath writer.write(arg); 5864444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath writer.newLine(); 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5894444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath writer.flush(); 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Should there be a timeout on this? 5923f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown ProcessStartResult result = new ProcessStartResult(); 5934444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath result.pid = inputStream.readInt(); 5943f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown if (result.pid < 0) { 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ZygoteStartFailedEx("fork() failed"); 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5974444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath result.usingWrapper = inputStream.readBoolean(); 5983f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown return result; 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 6004444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath zygoteState.close(); 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ZygoteStartFailedEx(ex); 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Starts a new process via the zygote mechanism. 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param processClass Class name whose static main() to run 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param niceName 'nice' process name to appear in ps 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param uid a POSIX uid that the new process should setuid() to 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gid a POSIX gid that the new process shuold setgid() to 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gids null-ok; a list of supplementary group IDs that the 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * new process should setgroup() to. 614e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes * @param debugFlags Additional flags. 615e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes * @param targetSdkVersion The target SDK version for the app. 616bd19b9ee305c11d8aa3cbb105bf2d3a6b06389b5Stephen Smalley * @param seInfo null-ok SELinux information for the new process. 6174444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * @param abi the ABI the process should use. 618aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe * @param instructionSet null-ok the instruction set to use. 6192eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu * @param appDataDir null-ok the data directory of the app. 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param extraArgs Additional arguments to supply to the zygote process. 6213f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * @return An object that describes the result of the attempt to start the process. 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ZygoteStartFailedEx if process start failed for any reason 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6243f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown private static ProcessStartResult startViaZygote(final String processClass, 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final String niceName, 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int uid, final int gid, 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] gids, 6285b1ada2562c17921adf6a62ea62bcb445160983cJeff Sharkey int debugFlags, int mountExternal, 6295b1ada2562c17921adf6a62ea62bcb445160983cJeff Sharkey int targetSdkVersion, 63083d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley String seInfo, 6314444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath String abi, 632aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe String instructionSet, 6332eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu String appDataDir, 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String[] extraArgs) 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws ZygoteStartFailedEx { 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized(Process.class) { 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<String> argsForZygote = new ArrayList<String>(); 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 639f48029f00a66e23d7872a00b56fbcf88528ba476Narayan Kamath // --runtime-args, --setuid=, --setgid=, 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and --setgroups= must go first 641f48029f00a66e23d7872a00b56fbcf88528ba476Narayan Kamath argsForZygote.add("--runtime-args"); 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--setuid=" + uid); 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--setgid=" + gid); 644ae07ecf3766c38af1c12822458b98036b28bd4c0Elliott Hughes if ((debugFlags & Zygote.DEBUG_ENABLE_JNI_LOGGING) != 0) { 645ae07ecf3766c38af1c12822458b98036b28bd4c0Elliott Hughes argsForZygote.add("--enable-jni-logging"); 646ae07ecf3766c38af1c12822458b98036b28bd4c0Elliott Hughes } 64723085b781e145ed684e7270af1d5ced6800b8effBen Cheng if ((debugFlags & Zygote.DEBUG_ENABLE_SAFEMODE) != 0) { 64823085b781e145ed684e7270af1d5ced6800b8effBen Cheng argsForZygote.add("--enable-safemode"); 64923085b781e145ed684e7270af1d5ced6800b8effBen Cheng } 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((debugFlags & Zygote.DEBUG_ENABLE_DEBUGGER) != 0) { 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--enable-debugger"); 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((debugFlags & Zygote.DEBUG_ENABLE_CHECKJNI) != 0) { 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--enable-checkjni"); 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 656065075e1f993a68579ed7f8034ab09d96ec957a9David Srbecky if ((debugFlags & Zygote.DEBUG_GENERATE_DEBUG_INFO) != 0) { 657065075e1f993a68579ed7f8034ab09d96ec957a9David Srbecky argsForZygote.add("--generate-debug-info"); 65827c39f1adeaf1a653fb41a5af64ee815b8048dd6Andreas Gampe } 659df6cb282937e5f804686ebbc952ae9f2290d93c7Tamas Berghammer if ((debugFlags & Zygote.DEBUG_ALWAYS_JIT) != 0) { 660df6cb282937e5f804686ebbc952ae9f2290d93c7Tamas Berghammer argsForZygote.add("--always-jit"); 661df6cb282937e5f804686ebbc952ae9f2290d93c7Tamas Berghammer } 662df6cb282937e5f804686ebbc952ae9f2290d93c7Tamas Berghammer if ((debugFlags & Zygote.DEBUG_NATIVE_DEBUGGABLE) != 0) { 663df6cb282937e5f804686ebbc952ae9f2290d93c7Tamas Berghammer argsForZygote.add("--native-debuggable"); 664df6cb282937e5f804686ebbc952ae9f2290d93c7Tamas Berghammer } 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((debugFlags & Zygote.DEBUG_ENABLE_ASSERT) != 0) { 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--enable-assert"); 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6684887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey if (mountExternal == Zygote.MOUNT_EXTERNAL_DEFAULT) { 6694887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey argsForZygote.add("--mount-external-default"); 6709527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey } else if (mountExternal == Zygote.MOUNT_EXTERNAL_READ) { 6719527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey argsForZygote.add("--mount-external-read"); 6729527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey } else if (mountExternal == Zygote.MOUNT_EXTERNAL_WRITE) { 6739527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey argsForZygote.add("--mount-external-write"); 6745b1ada2562c17921adf6a62ea62bcb445160983cJeff Sharkey } 675e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes argsForZygote.add("--target-sdk-version=" + targetSdkVersion); 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //TODO optionally enable debuger 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //argsForZygote.add("--enable-debugger"); 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // --setgroups is a comma-separated list 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gids != null && gids.length > 0) { 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project StringBuilder sb = new StringBuilder(); 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sb.append("--setgroups="); 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sz = gids.length; 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < sz; i++) { 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i != 0) { 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sb.append(','); 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sb.append(gids[i]); 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add(sb.toString()); 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (niceName != null) { 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--nice-name=" + niceName); 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 70083d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley if (seInfo != null) { 70183d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley argsForZygote.add("--seinfo=" + seInfo); 70283d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley } 70383d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley 704aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe if (instructionSet != null) { 705aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe argsForZygote.add("--instruction-set=" + instructionSet); 706aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe } 707aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe 7082eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu if (appDataDir != null) { 7092eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu argsForZygote.add("--app-data-dir=" + appDataDir); 7102eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu } 71183d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add(processClass); 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (extraArgs != null) { 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (String arg : extraArgs) { 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add(arg); 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7204444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath return zygoteSendArgsAndGetResult(openZygoteSocketIfNeeded(abi), argsForZygote); 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7234444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 7244444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath /** 725343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath * Tries to establish a connection to the zygote that handles a given {@code abi}. Might block and retry if the 726343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath * zygote is unresponsive. This method is a no-op if a connection is already open. 727343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath * 728343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath * @hide 729343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath */ 730343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath public static void establishZygoteConnectionForAbi(String abi) { 731343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath try { 732343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath openZygoteSocketIfNeeded(abi); 733343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath } catch (ZygoteStartFailedEx ex) { 734343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath throw new RuntimeException("Unable to connect to zygote for abi: " + abi, ex); 735343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath } 736343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath } 737343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath 738343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath /** 7394444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * Tries to open socket to Zygote process if not already open. If 7404444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * already open, does nothing. May block and retry. 7414444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath */ 7424444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath private static ZygoteState openZygoteSocketIfNeeded(String abi) throws ZygoteStartFailedEx { 7434444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath if (primaryZygoteState == null || primaryZygoteState.isClosed()) { 74464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath try { 74564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath primaryZygoteState = ZygoteState.connect(ZYGOTE_SOCKET); 74664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } catch (IOException ioe) { 74764cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath throw new ZygoteStartFailedEx("Error connecting to primary zygote", ioe); 74864cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } 7494444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 7504444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 7514444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath if (primaryZygoteState.matches(abi)) { 7524444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath return primaryZygoteState; 7534444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 7544444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 7554444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath // The primary zygote didn't match. Try the secondary. 7564444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath if (secondaryZygoteState == null || secondaryZygoteState.isClosed()) { 75764cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath try { 75864cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath secondaryZygoteState = ZygoteState.connect(SECONDARY_ZYGOTE_SOCKET); 75964cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } catch (IOException ioe) { 76064cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath throw new ZygoteStartFailedEx("Error connecting to secondary zygote", ioe); 76164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } 7624444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 7634444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 7644444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath if (secondaryZygoteState.matches(abi)) { 7654444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath return secondaryZygoteState; 7664444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 7674444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 7684444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath throw new ZygoteStartFailedEx("Unsupported zygote ABI: " + abi); 7694444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 7704444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns elapsed milliseconds of the time this process has run. 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Returns the number of milliseconds this process has return. 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native long getElapsedCpuTime(); 776ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe 777ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe /** 778d98885c128e7045da244098d82751da6e792d677Dianne Hackborn * Return the {@link SystemClock#elapsedRealtime()} at which this process was started. 779d98885c128e7045da244098d82751da6e792d677Dianne Hackborn */ 780d98885c128e7045da244098d82751da6e792d677Dianne Hackborn public static final long getStartElapsedRealtime() { 781d98885c128e7045da244098d82751da6e792d677Dianne Hackborn return sStartElapsedRealtime; 782d98885c128e7045da244098d82751da6e792d677Dianne Hackborn } 783d98885c128e7045da244098d82751da6e792d677Dianne Hackborn 784d98885c128e7045da244098d82751da6e792d677Dianne Hackborn /** 785d98885c128e7045da244098d82751da6e792d677Dianne Hackborn * Return the {@link SystemClock#uptimeMillis()} at which this process was started. 786d98885c128e7045da244098d82751da6e792d677Dianne Hackborn */ 787d98885c128e7045da244098d82751da6e792d677Dianne Hackborn public static final long getStartUptimeMillis() { 788d98885c128e7045da244098d82751da6e792d677Dianne Hackborn return sStartUptimeMillis; 789d98885c128e7045da244098d82751da6e792d677Dianne Hackborn } 790d98885c128e7045da244098d82751da6e792d677Dianne Hackborn 791d98885c128e7045da244098d82751da6e792d677Dianne Hackborn /** @hide */ 792d98885c128e7045da244098d82751da6e792d677Dianne Hackborn public static final void setStartTimes(long elapsedRealtime, long uptimeMillis) { 793d98885c128e7045da244098d82751da6e792d677Dianne Hackborn sStartElapsedRealtime = elapsedRealtime; 794d98885c128e7045da244098d82751da6e792d677Dianne Hackborn sStartUptimeMillis = uptimeMillis; 795d98885c128e7045da244098d82751da6e792d677Dianne Hackborn } 796d98885c128e7045da244098d82751da6e792d677Dianne Hackborn 797d98885c128e7045da244098d82751da6e792d677Dianne Hackborn /** 798ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe * Returns true if the current process is a 64-bit runtime. 799ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe */ 800ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe public static final boolean is64Bit() { 801ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe return VMRuntime.getRuntime().is64Bit(); 802ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe } 803ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the identifier of this process, which can be used with 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #killProcess} and {@link #sendSignal}. 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 808406ec15647b7664cadadde41dbaaa10e298c582bJeff Hao public static final int myPid() { 80934385d352da19805ae948215e2edbeedd16b7941Elliott Hughes return Os.getpid(); 810406ec15647b7664cadadde41dbaaa10e298c582bJeff Hao } 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 81380b12fcaaec458377d966803c3a61504f0897ea1Romain Guy * Returns the identifier of this process' parent. 81480b12fcaaec458377d966803c3a61504f0897ea1Romain Guy * @hide 81580b12fcaaec458377d966803c3a61504f0897ea1Romain Guy */ 8162a805f930463ece57bc0d0fd8dee7f5d50681b22Elliott Hughes public static final int myPpid() { 81734385d352da19805ae948215e2edbeedd16b7941Elliott Hughes return Os.getppid(); 8182a805f930463ece57bc0d0fd8dee7f5d50681b22Elliott Hughes } 81980b12fcaaec458377d966803c3a61504f0897ea1Romain Guy 82080b12fcaaec458377d966803c3a61504f0897ea1Romain Guy /** 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the identifier of the calling thread, which be used with 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}. 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8246d4b1e24aef5b74b40de4d8f6e63c21874ce8e3aElliott Hughes public static final int myTid() { 82534385d352da19805ae948215e2edbeedd16b7941Elliott Hughes return Os.gettid(); 8266d4b1e24aef5b74b40de4d8f6e63c21874ce8e3aElliott Hughes } 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8297d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * Returns the identifier of this process's uid. This is the kernel uid 8307d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * that the process is running under, which is the identity of its 8317d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * app-specific sandbox. It is different from {@link #myUserHandle} in that 8327d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * a uid identifies a specific app sandbox in a specific user. 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 834406ec15647b7664cadadde41dbaaa10e298c582bJeff Hao public static final int myUid() { 83534385d352da19805ae948215e2edbeedd16b7941Elliott Hughes return Os.getuid(); 836406ec15647b7664cadadde41dbaaa10e298c582bJeff Hao } 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 83979af1dd54c16cde063152922b42c96d72ae9eca8Dianne Hackborn * Returns this process's user handle. This is the 8407d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * user the process is running under. It is distinct from 8417d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * {@link #myUid()} in that a particular user will have multiple 8427d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * distinct apps running under it each with their own uid. 8437d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn */ 84402cb6e773b323a0d54b21f43460a23f668b7727cFyodor Kupolov public static UserHandle myUserHandle() { 84502cb6e773b323a0d54b21f43460a23f668b7727cFyodor Kupolov return UserHandle.of(UserHandle.getUserId(myUid())); 8467d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn } 8477d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn 8487d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn /** 84948aa86bd0b30815f4c02561f713bd33b032ef2b7Jeff Davidson * Returns whether the given uid belongs to an application. 85048aa86bd0b30815f4c02561f713bd33b032ef2b7Jeff Davidson * @param uid A kernel uid. 85148aa86bd0b30815f4c02561f713bd33b032ef2b7Jeff Davidson * @return Whether the uid corresponds to an application sandbox running in 85248aa86bd0b30815f4c02561f713bd33b032ef2b7Jeff Davidson * a specific user. 85348aa86bd0b30815f4c02561f713bd33b032ef2b7Jeff Davidson */ 85448aa86bd0b30815f4c02561f713bd33b032ef2b7Jeff Davidson public static boolean isApplicationUid(int uid) { 85548aa86bd0b30815f4c02561f713bd33b032ef2b7Jeff Davidson return UserHandle.isApp(uid); 85648aa86bd0b30815f4c02561f713bd33b032ef2b7Jeff Davidson } 85748aa86bd0b30815f4c02561f713bd33b032ef2b7Jeff Davidson 85848aa86bd0b30815f4c02561f713bd33b032ef2b7Jeff Davidson /** 859a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn * Returns whether the current process is in an isolated sandbox. 860a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn * @hide 861a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn */ 862a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn public static final boolean isIsolated() { 8639527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey return isIsolated(myUid()); 8649527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey } 8659527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey 8669527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey /** {@hide} */ 8679527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey public static final boolean isIsolated(int uid) { 8689527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey uid = UserHandle.getAppId(uid); 869a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn return uid >= FIRST_ISOLATED_UID && uid <= LAST_ISOLATED_UID; 870a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn } 871a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn 872a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn /** 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the UID assigned to a particular user name, or -1 if there is 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * none. If the given string consists of only numbers, it is converted 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * directly to a uid. 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int getUidForName(String name); 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the GID assigned to a particular user name, or -1 if there is 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * none. If the given string consists of only numbers, it is converted 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * directly to a gid. 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int getGidForName(String name); 885819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani 886819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani /** 887819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani * Returns a uid for a currently running process. 888819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani * @param pid the process id 889819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani * @return the uid of the process, or -1 if the process is not running. 890819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani * @hide pending API council review 891819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani */ 892819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani public static final int getUidForPid(int pid) { 893819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani String[] procStatusLabels = { "Uid:" }; 894819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani long[] procStatusValues = new long[1]; 895819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani procStatusValues[0] = -1; 896819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani Process.readProcLines("/proc/" + pid + "/status", procStatusLabels, procStatusValues); 897819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani return (int) procStatusValues[0]; 898819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani } 899819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 901ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown * Returns the parent process id for a currently running process. 902ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown * @param pid the process id 903ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown * @return the parent process id of the process, or -1 if the process is not running. 904ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown * @hide 905ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown */ 906ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown public static final int getParentPid(int pid) { 907ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown String[] procStatusLabels = { "PPid:" }; 908ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown long[] procStatusValues = new long[1]; 909ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown procStatusValues[0] = -1; 910ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown Process.readProcLines("/proc/" + pid + "/status", procStatusLabels, procStatusValues); 911ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown return (int) procStatusValues[0]; 912ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown } 913ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown 914ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown /** 91507b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * Returns the thread group leader id for a currently running thread. 91607b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * @param tid the thread id 91707b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * @return the thread group leader id of the thread, or -1 if the thread is not running. 91807b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * This is same as what getpid(2) would return if called by tid. 91907b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * @hide 92007b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten */ 92107b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten public static final int getThreadGroupLeader(int tid) { 92207b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten String[] procStatusLabels = { "Tgid:" }; 92307b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten long[] procStatusValues = new long[1]; 92407b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten procStatusValues[0] = -1; 92507b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten Process.readProcLines("/proc/" + tid + "/status", procStatusLabels, procStatusValues); 92607b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten return (int) procStatusValues[0]; 92707b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten } 92807b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten 92907b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten /** 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the priority of a thread, based on Linux priorities. 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param tid The identifier of the thread/process to change. 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param priority A Linux priority level, from -20 for highest scheduling 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority to 19 for lowest scheduling priority. 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException Throws IllegalArgumentException if 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <var>tid</var> does not exist. 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws SecurityException Throws SecurityException if your process does 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not have permission to modify the given thread, or to use the given 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority. 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void setThreadPriority(int tid, int priority) 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IllegalArgumentException, SecurityException; 944e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 945e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat /** 946160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * Call with 'false' to cause future calls to {@link #setThreadPriority(int)} to 947160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * throw an exception if passed a background-level thread priority. This is only 948160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * effective if the JNI layer is built with GUARD_THREAD_PRIORITY defined to 1. 949160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * 950160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * @hide 951160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate */ 952160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate public static final native void setCanSelfBackground(boolean backgroundOk); 953160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate 954160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate /** 955e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * Sets the scheduling group for a thread. 956e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @hide 957f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * @param tid The identifier of the thread to change. 958f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * @param group The target group for this thread from THREAD_GROUP_*. 959e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * 960e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @throws IllegalArgumentException Throws IllegalArgumentException if 961e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * <var>tid</var> does not exist. 962e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @throws SecurityException Throws SecurityException if your process does 963e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * not have permission to modify the given thread, or to use the given 964e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * priority. 965f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * If the thread is a thread group leader, that is it's gettid() == getpid(), 966f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * then the other threads in the same thread group are _not_ affected. 967e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat */ 968e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat public static final native void setThreadGroup(int tid, int group) 969e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat throws IllegalArgumentException, SecurityException; 970f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten 9713e458241d9930465a20a861ecb42744355d48e48San Mehat /** 9723e458241d9930465a20a861ecb42744355d48e48San Mehat * Sets the scheduling group for a process and all child threads 9733e458241d9930465a20a861ecb42744355d48e48San Mehat * @hide 974f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * @param pid The identifier of the process to change. 975f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * @param group The target group for this process from THREAD_GROUP_*. 9763e458241d9930465a20a861ecb42744355d48e48San Mehat * 9773e458241d9930465a20a861ecb42744355d48e48San Mehat * @throws IllegalArgumentException Throws IllegalArgumentException if 9783e458241d9930465a20a861ecb42744355d48e48San Mehat * <var>tid</var> does not exist. 9793e458241d9930465a20a861ecb42744355d48e48San Mehat * @throws SecurityException Throws SecurityException if your process does 9803e458241d9930465a20a861ecb42744355d48e48San Mehat * not have permission to modify the given thread, or to use the given 9813e458241d9930465a20a861ecb42744355d48e48San Mehat * priority. 982f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * 983f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * group == THREAD_GROUP_DEFAULT means to move all non-background priority 984f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * threads to the foreground scheduling group, but to leave background 985f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * priority threads alone. group == THREAD_GROUP_BG_NONINTERACTIVE moves all 986f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * threads, regardless of priority, to the background scheduling group. 987f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * group == THREAD_GROUP_FOREGROUND is not allowed. 9883e458241d9930465a20a861ecb42744355d48e48San Mehat */ 9893e458241d9930465a20a861ecb42744355d48e48San Mehat public static final native void setProcessGroup(int pid, int group) 9903e458241d9930465a20a861ecb42744355d48e48San Mehat throws IllegalArgumentException, SecurityException; 9919e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey 9929e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey /** 9939e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey * Return the scheduling group of requested process. 9949e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey * 9959e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey * @hide 9969e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey */ 9979e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey public static final native int getProcessGroup(int pid) 9989e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey throws IllegalArgumentException, SecurityException; 9999e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1001cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * On some devices, the foreground process may have one or more CPU 1002cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * cores exclusively reserved for it. This method can be used to 1003cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * retrieve which cores that are (if any), so the calling process 1004cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * can then use sched_setaffinity() to lock a thread to these cores. 1005cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * Note that the calling process must currently be running in the 1006cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * foreground for this method to return any cores. 1007cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * 1008cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * The CPU core(s) exclusively reserved for the foreground process will 1009cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * stay reserved for as long as the process stays in the foreground. 1010cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * 1011cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * As soon as a process leaves the foreground, those CPU cores will 1012cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * no longer be reserved for it, and will most likely be reserved for 1013cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * the new foreground process. It's not necessary to change the affinity 1014cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * of your process when it leaves the foreground (if you had previously 1015cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * set it to use a reserved core); the OS will automatically take care 1016cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * of resetting the affinity at that point. 1017cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * 1018cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * @return an array of integers, indicating the CPU cores exclusively 1019cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * reserved for this process. The array will have length zero if no 1020cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * CPU cores are exclusively reserved for this process at this point 1021cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * in time. 1022cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen */ 1023cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen public static final native int[] getExclusiveCores(); 1024cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen 1025cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen /** 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the priority of the calling thread, based on Linux priorities. See 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)} for more information. 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param priority A Linux priority level, from -20 for highest scheduling 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority to 19 for lowest scheduling priority. 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException Throws IllegalArgumentException if 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <var>tid</var> does not exist. 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws SecurityException Throws SecurityException if your process does 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not have permission to modify the given thread, or to use the given 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority. 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setThreadPriority(int, int) 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void setThreadPriority(int priority) 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IllegalArgumentException, SecurityException; 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return the current priority of a thread, based on Linux priorities. 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param tid The identifier of the thread/process to change. 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Returns the current priority, as a Linux priority level, 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * from -20 for highest scheduling priority to 19 for lowest scheduling 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority. 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException Throws IllegalArgumentException if 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <var>tid</var> does not exist. 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int getThreadPriority(int tid) 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IllegalArgumentException; 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10596793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * Set the scheduling policy and priority of a thread, based on Linux. 10606793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * 10616793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @param tid The identifier of the thread/process to change. 10626793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @param policy A Linux scheduling policy such as SCHED_OTHER etc. 10636793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @param priority A Linux priority level in a range appropriate for the given policy. 10646793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * 10656793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @throws IllegalArgumentException Throws IllegalArgumentException if 10666793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * <var>tid</var> does not exist, or if <var>priority</var> is out of range for the policy. 10676793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @throws SecurityException Throws SecurityException if your process does 10686793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * not have permission to modify the given thread, or to use the given 10696793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * scheduling policy or priority. 10706793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * 10716793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * {@hide} 10726793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten */ 10736793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten public static final native void setThreadScheduler(int tid, int policy, int priority) 10746793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten throws IllegalArgumentException; 10756793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 10766793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten /** 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determine whether the current environment supports multiple processes. 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Returns true if the system can run in multiple processes, else 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false if everything is running in a single process. 108110e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown * 108210e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown * @deprecated This method always returns true. Do not use. 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 108410e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown @Deprecated 108510e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown public static final boolean supportsProcesses() { 108610e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown return true; 108710e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown } 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10905534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * Adjust the swappiness level for a process. 10915534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * 10925534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * @param pid The process identifier to set. 10935534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * @param is_increased Whether swappiness should be increased or default. 10945534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * 10955534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * @return Returns true if the underlying system supports this 10965534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * feature, else false. 10975534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * 10985534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * {@hide} 10995534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand */ 11005534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand public static final native boolean setSwappiness(int pid, boolean is_increased); 11015534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand 11025534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand /** 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Change this process's argv[0] parameter. This can be useful to show 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * more descriptive information in things like the 'ps' command. 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The new name of this process. 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@hide} 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void setArgV0(String text); 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Kill the process with the given PID. 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that, though this API allows us to request to 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * kill any process based on its PID, the kernel will 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * still impose standard restrictions on which PIDs you 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * are actually able to kill. Typically this means only 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the process running the caller's packages/application 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and any additional processes created by that app; packages 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * sharing a common UID will also be able to kill each 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * other's processes. 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final void killProcess(int pid) { 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sendSignal(pid, SIGNAL_KILL); 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int setUid(int uid); 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int setGid(int uid); 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Send a signal to the given process. 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pid The pid of the target process. 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param signal The signal to send. 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void sendSignal(int pid, int signal); 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1141906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn /** 1142906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * @hide 1143906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * Private impl for avoiding a log message... DO NOT USE without doing 1144906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * your own log, or the Android Illuminati will find you some night and 1145906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * beat you up. 1146906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn */ 1147906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn public static final void killProcessQuiet(int pid) { 1148906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn sendSignalQuiet(pid, SIGNAL_KILL); 1149906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn } 1150906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn 1151906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn /** 1152906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * @hide 1153906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * Private impl for avoiding a log message... DO NOT USE without doing 1154906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * your own log, or the Android Illuminati will find you some night and 1155906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * beat you up. 1156906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn */ 1157906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn public static final native void sendSignalQuiet(int pid, int signal); 1158906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11600bca96bcbfe559f9330a01f723c5c9cba51ec05aMarco Nelissen public static final native long getFreeMemory(); 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 116359325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn public static final native long getTotalMemory(); 116459325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn 116559325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn /** @hide */ 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void readProcLines(String path, 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String[] reqFields, long[] outSizes); 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int[] getPids(String path, int[] lastArray); 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_TERM_MASK = 0xff; 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_ZERO_TERM = 0; 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_SPACE_TERM = (int)' '; 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 1179c64edde69d18498fb2954f71a546357b07ab996aEvan Millar public static final int PROC_TAB_TERM = (int)'\t'; 1180c64edde69d18498fb2954f71a546357b07ab996aEvan Millar /** @hide */ 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_COMBINE = 0x100; 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_PARENS = 0x200; 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 118513ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn public static final int PROC_QUOTES = 0x400; 118613ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn /** @hide */ 11874de5a3ac6655f76b67af38712ae5aeb6d7c15938Dianne Hackborn public static final int PROC_CHAR = 0x800; 11884de5a3ac6655f76b67af38712ae5aeb6d7c15938Dianne Hackborn /** @hide */ 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_OUT_STRING = 0x1000; 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_OUT_LONG = 0x2000; 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_OUT_FLOAT = 0x4000; 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native boolean readProcFile(String file, int[] format, 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String[] outStrings, long[] outLongs, float[] outFloats); 1198c64edde69d18498fb2954f71a546357b07ab996aEvan Millar 1199c64edde69d18498fb2954f71a546357b07ab996aEvan Millar /** @hide */ 1200c64edde69d18498fb2954f71a546357b07ab996aEvan Millar public static final native boolean parseProcLine(byte[] buffer, int startIndex, 1201c64edde69d18498fb2954f71a546357b07ab996aEvan Millar int endIndex, int[] format, String[] outStrings, long[] outLongs, float[] outFloats); 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1203f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn /** @hide */ 1204f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn public static final native int[] getPidsForCommands(String[] cmds); 1205f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Gets the total Pss value for a given process, in bytes. 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pid the process to the Pss for 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the total Pss value for the given process in bytes, 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or -1 if the value cannot be determined 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native long getPss(int pid); 12153f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown 12163f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown /** 12173f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * Specifies the outcome of having started a process. 12183f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * @hide 12193f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown */ 12203f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown public static final class ProcessStartResult { 12213f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown /** 12223f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * The PID of the newly started process. 12233f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * Always >= 0. (If the start failed, an exception will have been thrown instead.) 12243f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown */ 12253f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown public int pid; 12263f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown 12273f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown /** 12283f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * True if the process was started with a wrapper attached. 12293f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown */ 12303f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown public boolean usingWrapper; 12313f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown } 12320769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross 12330769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross /** 12340769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross * Kill all processes in a process group started for the given 12350769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross * pid. 12360769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross * @hide 12370769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross */ 12380769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross public static final native int killProcessGroup(int uid, int pid); 12390769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross 12400769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross /** 12410769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross * Remove all process groups. Expected to be called when ActivityManager 12420769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross * is restarted. 12430769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross * @hide 12440769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross */ 12450769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross public static final native void removeAllProcessGroups(); 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1247