Process.java revision 9527b223a9d4a4d149bb005afc77148dbeeff785
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) /** 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the start of a range of UIDs (and GIDs), going from this 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * number to {@link #LAST_APPLICATION_UID} that are reserved for assigning 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to applications. 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int FIRST_APPLICATION_UID = 10000; 152184a0100abc431fc3d6d8dd1b20212b84958cadaJeff Sharkey 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Last of application-specific UIDs starting at 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #FIRST_APPLICATION_UID}. 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15721fbd1f7da53dc044737803dccddf8099f1fc1e9Dianne Hackborn public static final int LAST_APPLICATION_UID = 19999; 158a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn 159a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn /** 160a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn * First uid used for fully isolated sandboxed processes (with no permissions of their own) 161a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn * @hide 162a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn */ 163a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn public static final int FIRST_ISOLATED_UID = 99000; 164a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn 165a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn /** 166a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn * Last uid used for fully isolated sandboxed processes (with no permissions of their own) 167a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn * @hide 168a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn */ 169a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn public static final int LAST_ISOLATED_UID = 99999; 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 172e66b6890ee59d108ae5c608f6ec8d4ad20cb06a8Robin Lee * Defines the gid shared by all applications running under the same profile. 173e66b6890ee59d108ae5c608f6ec8d4ad20cb06a8Robin Lee * @hide 174e66b6890ee59d108ae5c608f6ec8d4ad20cb06a8Robin Lee */ 175e66b6890ee59d108ae5c608f6ec8d4ad20cb06a8Robin Lee public static final int SHARED_USER_GID = 9997; 176e66b6890ee59d108ae5c608f6ec8d4ad20cb06a8Robin Lee 177e66b6890ee59d108ae5c608f6ec8d4ad20cb06a8Robin Lee /** 178e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root * First gid for applications to share resources. Used when forward-locking 179e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root * is enabled but all UserHandles need to be able to read the resources. 180e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root * @hide 181e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root */ 182e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root public static final int FIRST_SHARED_APPLICATION_GID = 50000; 183e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root 184e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root /** 185e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root * Last gid for applications to share resources. Used when forward-locking 186e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root * is enabled but all UserHandles need to be able to read the resources. 187e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root * @hide 188e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root */ 189e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root public static final int LAST_SHARED_APPLICATION_GID = 59999; 190e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root 191e091f22e226f7177e45e23850670c1ad9b63fd75Kenny Root /** 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of application threads. 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_DEFAULT = 0; 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * *************************************** 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ** Keep in sync with utils/threads.h ** 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * *************************************** 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Lowest available thread priority. Only for those who really, really 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * don't want to run if anything else is happening. 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_LOWEST = 19; 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority background threads. This gives your thread a slightly 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * lower than normal priority, so that it will have less chance of impacting 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the responsiveness of the user interface. 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_BACKGROUND = 10; 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of threads that are currently running a user interface 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that the user is interacting with. Applications can not normally 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * change to this priority; the system will automatically adjust your 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * application threads as the user moves through the UI. 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_FOREGROUND = -2; 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of system display threads, involved in updating 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the user interface. Applications can not 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * normally change to this priority. 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_DISPLAY = -4; 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of the most important display threads, for compositing 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the screen and retrieving input events. Applications can not normally 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * change to this priority. 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_URGENT_DISPLAY = -8; 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of audio threads. Applications can not normally 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * change to this priority. 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_AUDIO = -16; 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of the most important audio threads. 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Applications can not normally change to this priority. 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_URGENT_AUDIO = -19; 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Minimum increment to make a priority more favorable. 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_MORE_FAVORABLE = -1; 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Minimum increment to make a priority less favorable. 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_LESS_FAVORABLE = +1; 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 283e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat /** 2846793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * Default scheduling policy 2856793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @hide 2866793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten */ 2876793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten public static final int SCHED_OTHER = 0; 2886793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 2896793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten /** 2906793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * First-In First-Out scheduling policy 2916793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @hide 2926793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten */ 2936793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten public static final int SCHED_FIFO = 1; 2946793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 2956793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten /** 2966793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * Round-Robin scheduling policy 2976793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @hide 2986793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten */ 2996793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten public static final int SCHED_RR = 2; 3006793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 3016793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten /** 3026793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * Batch scheduling policy 3036793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @hide 3046793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten */ 3056793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten public static final int SCHED_BATCH = 3; 3066793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 3076793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten /** 3086793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * Idle scheduling policy 3096793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @hide 3106793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten */ 3116793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten public static final int SCHED_IDLE = 5; 3126793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 313f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten // Keep in sync with SP_* constants of enum type SchedPolicy 314f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten // declared in system/core/include/cutils/sched_policy.h, 315f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten // except THREAD_GROUP_DEFAULT does not correspond to any SP_* value. 316f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten 3176793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten /** 318f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * Default thread group - 319f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * has meaning with setProcessGroup() only, cannot be used with setThreadGroup(). 320f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * When used with setProcessGroup(), the group of each thread in the process 321f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * is conditionally changed based on that thread's current priority, as follows: 322f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * threads with priority numerically less than THREAD_PRIORITY_BACKGROUND 323f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * are moved to foreground thread group. All other threads are left unchanged. 324e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @hide 325e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat */ 326f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten public static final int THREAD_GROUP_DEFAULT = -1; 327e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 328e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat /** 329f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * Background thread group - All threads in 330e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * this group are scheduled with a reduced share of the CPU. 331f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * Value is same as constant SP_BACKGROUND of enum SchedPolicy. 332f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * FIXME rename to THREAD_GROUP_BACKGROUND. 333e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @hide 334e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat */ 335f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten public static final int THREAD_GROUP_BG_NONINTERACTIVE = 0; 336e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 337e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat /** 338f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * Foreground thread group - All threads in 339f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * this group are scheduled with a normal share of the CPU. 340f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * Value is same as constant SP_FOREGROUND of enum SchedPolicy. 341f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * Not used at this level. 342e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @hide 343e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat **/ 344f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten private static final int THREAD_GROUP_FOREGROUND = 1; 345e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 34607b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten /** 34707b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * System thread group. 34807b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * @hide 34907b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten **/ 35007b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten public static final int THREAD_GROUP_SYSTEM = 2; 35107b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten 35207b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten /** 35307b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * Application audio thread group. 35407b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * @hide 35507b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten **/ 35607b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten public static final int THREAD_GROUP_AUDIO_APP = 3; 35707b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten 35807b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten /** 35907b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * System audio thread group. 36007b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * @hide 36107b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten **/ 36207b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten public static final int THREAD_GROUP_AUDIO_SYS = 4; 36307b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int SIGNAL_QUIT = 3; 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int SIGNAL_KILL = 9; 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int SIGNAL_USR1 = 10; 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3684444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath /** 3694444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * State for communicating with the zygote process. 37064cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath * 37164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath * @hide for internal use only. 3724444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath */ 37364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath public static class ZygoteState { 3744444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath final LocalSocket socket; 3754444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath final DataInputStream inputStream; 3764444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath final BufferedWriter writer; 3774444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath final List<String> abiList; 3784444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 3794444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath boolean mClosed; 3804444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 3814444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath private ZygoteState(LocalSocket socket, DataInputStream inputStream, 3824444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath BufferedWriter writer, List<String> abiList) { 3834444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath this.socket = socket; 3844444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath this.inputStream = inputStream; 3854444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath this.writer = writer; 3864444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath this.abiList = abiList; 3874444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 3884444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 38964cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath public static ZygoteState connect(String socketAddress) throws IOException { 3904444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath DataInputStream zygoteInputStream = null; 3914444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath BufferedWriter zygoteWriter = null; 39264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath final LocalSocket zygoteSocket = new LocalSocket(); 3934444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 39464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath try { 39564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath zygoteSocket.connect(new LocalSocketAddress(socketAddress, 39664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath LocalSocketAddress.Namespace.RESERVED)); 3974444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 39864cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath zygoteInputStream = new DataInputStream(zygoteSocket.getInputStream()); 3994444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 40064cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath zygoteWriter = new BufferedWriter(new OutputStreamWriter( 40164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath zygoteSocket.getOutputStream()), 256); 40264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } catch (IOException ex) { 40364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath try { 40464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath zygoteSocket.close(); 40564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } catch (IOException ignore) { 4064444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4074444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 40864cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath throw ex; 4094444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4104444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4114444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath String abiListString = getAbiList(zygoteWriter, zygoteInputStream); 4124444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath Log.i("Zygote", "Process: zygote socket opened, supported ABIS: " + abiListString); 4134444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4144444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath return new ZygoteState(zygoteSocket, zygoteInputStream, zygoteWriter, 4154444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath Arrays.asList(abiListString.split(","))); 4164444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4174444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4184444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath boolean matches(String abi) { 4194444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath return abiList.contains(abi); 4204444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4214444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 42264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath public void close() { 4234444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath try { 4244444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath socket.close(); 4254444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } catch (IOException ex) { 4264444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath Log.e(LOG_TAG,"I/O exception on routine close", ex); 4274444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4284444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4294444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath mClosed = true; 4304444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4314444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4324444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath boolean isClosed() { 4334444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath return mClosed; 4344444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4354444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 4364444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 4374444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath /** 4384444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * The state of the connection to the primary zygote. 4394444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath */ 4404444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath static ZygoteState primaryZygoteState; 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4424444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath /** 4434444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * The state of the connection to the secondary zygote. 4444444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath */ 4454444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath static ZygoteState secondaryZygoteState; 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Start a new process. 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>If processes are enabled, a new process is created and the 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * static main() function of a <var>processClass</var> is executed there. 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The process will continue running after this function returns. 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>If processes are not enabled, a new thread in the caller's 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * process is created and main() of <var>processClass</var> called there. 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>The niceName parameter, if not an empty string, is a custom name to 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * give to the process instead of using processClass. This allows you to 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * make easily identifyable processes even if you are using the same base 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <var>processClass</var> to start them. 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param processClass The class to use as the process's main entry 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * point. 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param niceName A more readable name to use for the process. 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param uid The user-id under which the process will run. 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gid The group-id under which the process will run. 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gids Additional group-ids associated with the process. 468e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes * @param debugFlags Additional flags. 469e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes * @param targetSdkVersion The target SDK version for the app. 470bd19b9ee305c11d8aa3cbb105bf2d3a6b06389b5Stephen Smalley * @param seInfo null-ok SELinux information for the new process. 471ff0c470833b2cb4130a30895093630242d5f238dRamin Zaghi * @param abi non-null the ABI this app should be started with. 472aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe * @param instructionSet null-ok the instruction set to use. 4732eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu * @param appDataDir null-ok the data directory of the app. 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param zygoteArgs Additional arguments to supply to the zygote process. 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4763f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * @return An object that describes the result of the attempt to start the process. 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws RuntimeException on fatal start failure 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@hide} 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4813f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown public static final ProcessStartResult start(final String processClass, 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final String niceName, 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int uid, int gid, int[] gids, 4845b1ada2562c17921adf6a62ea62bcb445160983cJeff Sharkey int debugFlags, int mountExternal, 4855b1ada2562c17921adf6a62ea62bcb445160983cJeff Sharkey int targetSdkVersion, 48683d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley String seInfo, 487ff0c470833b2cb4130a30895093630242d5f238dRamin Zaghi String abi, 488aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe String instructionSet, 4892eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu String appDataDir, 49010e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown String[] zygoteArgs) { 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 49210e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown return startViaZygote(processClass, niceName, uid, gid, gids, 4934444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath debugFlags, mountExternal, targetSdkVersion, seInfo, 4942eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu abi, instructionSet, appDataDir, zygoteArgs); 49510e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown } catch (ZygoteStartFailedEx ex) { 49610e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown Log.e(LOG_TAG, 49710e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown "Starting VM process through Zygote failed"); 49810e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown throw new RuntimeException( 49910e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown "Starting VM process through Zygote failed", ex); 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** retry interval for opening a zygote socket */ 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int ZYGOTE_RETRY_MILLIS = 500; 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5074444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * Queries the zygote for the list of ABIS it supports. 5084444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * 5094444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * @throws ZygoteStartFailedEx if the query failed. 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5114444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath private static String getAbiList(BufferedWriter writer, DataInputStream inputStream) 51264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath throws IOException { 51364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath // Each query starts with the argument count (1 in this case) 51464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath writer.write("1"); 51564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath // ... followed by a new-line. 51664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath writer.newLine(); 51764cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath // ... followed by our only argument. 51864cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath writer.write("--query-abi-list"); 51964cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath writer.newLine(); 52064cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath writer.flush(); 52164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath 52264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath // The response is a length prefixed stream of ASCII bytes. 52364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath int numBytes = inputStream.readInt(); 52464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath byte[] bytes = new byte[numBytes]; 52564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath inputStream.readFully(bytes); 52664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath 52764cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath return new String(bytes, StandardCharsets.US_ASCII); 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends an argument list to the zygote process, which starts a new child 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and returns the child's pid. Please note: the present implementation 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * replaces newlines in the argument list with spaces. 5344444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ZygoteStartFailedEx if process start failed for any reason 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5374444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath private static ProcessStartResult zygoteSendArgsAndGetResult( 5384444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath ZygoteState zygoteState, ArrayList<String> args) 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws ZygoteStartFailedEx { 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See com.android.internal.os.ZygoteInit.readArgumentList() 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Presently the wire format to the zygote process is: 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a) a count of arguments (argc, in essence) 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * b) a number of newline-separated argument strings equal to count 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * After the zygote process reads these it will write the pid of 5483f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * the child or -1 on failure, followed by boolean to 5493f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * indicate whether a wrapper process was used. 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5514444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath final BufferedWriter writer = zygoteState.writer; 5524444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath final DataInputStream inputStream = zygoteState.inputStream; 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5544444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath writer.write(Integer.toString(args.size())); 5554444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath writer.newLine(); 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sz = args.size(); 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < sz; i++) { 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String arg = args.get(i); 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (arg.indexOf('\n') >= 0) { 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ZygoteStartFailedEx( 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "embedded newlines not allowed"); 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5644444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath writer.write(arg); 5654444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath writer.newLine(); 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5684444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath writer.flush(); 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Should there be a timeout on this? 5713f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown ProcessStartResult result = new ProcessStartResult(); 5724444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath result.pid = inputStream.readInt(); 5733f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown if (result.pid < 0) { 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ZygoteStartFailedEx("fork() failed"); 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5764444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath result.usingWrapper = inputStream.readBoolean(); 5773f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown return result; 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 5794444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath zygoteState.close(); 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ZygoteStartFailedEx(ex); 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Starts a new process via the zygote mechanism. 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param processClass Class name whose static main() to run 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param niceName 'nice' process name to appear in ps 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param uid a POSIX uid that the new process should setuid() to 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gid a POSIX gid that the new process shuold setgid() to 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gids null-ok; a list of supplementary group IDs that the 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * new process should setgroup() to. 593e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes * @param debugFlags Additional flags. 594e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes * @param targetSdkVersion The target SDK version for the app. 595bd19b9ee305c11d8aa3cbb105bf2d3a6b06389b5Stephen Smalley * @param seInfo null-ok SELinux information for the new process. 5964444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * @param abi the ABI the process should use. 597aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe * @param instructionSet null-ok the instruction set to use. 5982eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu * @param appDataDir null-ok the data directory of the app. 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param extraArgs Additional arguments to supply to the zygote process. 6003f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * @return An object that describes the result of the attempt to start the process. 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ZygoteStartFailedEx if process start failed for any reason 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6033f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown private static ProcessStartResult startViaZygote(final String processClass, 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final String niceName, 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int uid, final int gid, 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] gids, 6075b1ada2562c17921adf6a62ea62bcb445160983cJeff Sharkey int debugFlags, int mountExternal, 6085b1ada2562c17921adf6a62ea62bcb445160983cJeff Sharkey int targetSdkVersion, 60983d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley String seInfo, 6104444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath String abi, 611aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe String instructionSet, 6122eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu String appDataDir, 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String[] extraArgs) 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws ZygoteStartFailedEx { 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized(Process.class) { 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<String> argsForZygote = new ArrayList<String>(); 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 618f48029f00a66e23d7872a00b56fbcf88528ba476Narayan Kamath // --runtime-args, --setuid=, --setgid=, 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and --setgroups= must go first 620f48029f00a66e23d7872a00b56fbcf88528ba476Narayan Kamath argsForZygote.add("--runtime-args"); 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--setuid=" + uid); 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--setgid=" + gid); 623ae07ecf3766c38af1c12822458b98036b28bd4c0Elliott Hughes if ((debugFlags & Zygote.DEBUG_ENABLE_JNI_LOGGING) != 0) { 624ae07ecf3766c38af1c12822458b98036b28bd4c0Elliott Hughes argsForZygote.add("--enable-jni-logging"); 625ae07ecf3766c38af1c12822458b98036b28bd4c0Elliott Hughes } 62623085b781e145ed684e7270af1d5ced6800b8effBen Cheng if ((debugFlags & Zygote.DEBUG_ENABLE_SAFEMODE) != 0) { 62723085b781e145ed684e7270af1d5ced6800b8effBen Cheng argsForZygote.add("--enable-safemode"); 62823085b781e145ed684e7270af1d5ced6800b8effBen Cheng } 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((debugFlags & Zygote.DEBUG_ENABLE_DEBUGGER) != 0) { 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--enable-debugger"); 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((debugFlags & Zygote.DEBUG_ENABLE_CHECKJNI) != 0) { 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--enable-checkjni"); 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6357a49028aa2f25364042fae031d95f9283844e645Mathieu Chartier if ((debugFlags & Zygote.DEBUG_ENABLE_JIT) != 0) { 6367a49028aa2f25364042fae031d95f9283844e645Mathieu Chartier argsForZygote.add("--enable-jit"); 6377a49028aa2f25364042fae031d95f9283844e645Mathieu Chartier } 638065075e1f993a68579ed7f8034ab09d96ec957a9David Srbecky if ((debugFlags & Zygote.DEBUG_GENERATE_DEBUG_INFO) != 0) { 639065075e1f993a68579ed7f8034ab09d96ec957a9David Srbecky argsForZygote.add("--generate-debug-info"); 64027c39f1adeaf1a653fb41a5af64ee815b8048dd6Andreas Gampe } 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((debugFlags & Zygote.DEBUG_ENABLE_ASSERT) != 0) { 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--enable-assert"); 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6444887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey if (mountExternal == Zygote.MOUNT_EXTERNAL_DEFAULT) { 6454887789e44cdb16b042a35e8ec03983213e88ac6Jeff Sharkey argsForZygote.add("--mount-external-default"); 6469527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey } else if (mountExternal == Zygote.MOUNT_EXTERNAL_READ) { 6479527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey argsForZygote.add("--mount-external-read"); 6489527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey } else if (mountExternal == Zygote.MOUNT_EXTERNAL_WRITE) { 6499527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey argsForZygote.add("--mount-external-write"); 6505b1ada2562c17921adf6a62ea62bcb445160983cJeff Sharkey } 651e1dfcb7ab01fb991079ec1f70f75281a0ca9073eElliott Hughes argsForZygote.add("--target-sdk-version=" + targetSdkVersion); 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //TODO optionally enable debuger 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //argsForZygote.add("--enable-debugger"); 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // --setgroups is a comma-separated list 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gids != null && gids.length > 0) { 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project StringBuilder sb = new StringBuilder(); 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sb.append("--setgroups="); 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sz = gids.length; 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < sz; i++) { 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i != 0) { 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sb.append(','); 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sb.append(gids[i]); 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add(sb.toString()); 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (niceName != null) { 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--nice-name=" + niceName); 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 67683d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley if (seInfo != null) { 67783d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley argsForZygote.add("--seinfo=" + seInfo); 67883d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley } 67983d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley 680aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe if (instructionSet != null) { 681aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe argsForZygote.add("--instruction-set=" + instructionSet); 682aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe } 683aec67dcc02362e4d2f7641c6605405b839bd1bd4Andreas Gampe 6842eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu if (appDataDir != null) { 6852eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu argsForZygote.add("--app-data-dir=" + appDataDir); 6862eacd06bfb82b33dfcbccafbcfc0bf1218484bb5jgu } 68783d9eda9c2c411e3480c52f01e192bf3c86be8e9Stephen Smalley 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add(processClass); 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (extraArgs != null) { 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (String arg : extraArgs) { 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add(arg); 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6964444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath return zygoteSendArgsAndGetResult(openZygoteSocketIfNeeded(abi), argsForZygote); 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6994444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 7004444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath /** 701343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath * Tries to establish a connection to the zygote that handles a given {@code abi}. Might block and retry if the 702343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath * zygote is unresponsive. This method is a no-op if a connection is already open. 703343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath * 704343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath * @hide 705343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath */ 706343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath public static void establishZygoteConnectionForAbi(String abi) { 707343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath try { 708343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath openZygoteSocketIfNeeded(abi); 709343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath } catch (ZygoteStartFailedEx ex) { 710343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath throw new RuntimeException("Unable to connect to zygote for abi: " + abi, ex); 711343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath } 712343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath } 713343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath 714343f478241fab49c909b229d6876ff8405e7b0d5Narayan Kamath /** 7154444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * Tries to open socket to Zygote process if not already open. If 7164444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath * already open, does nothing. May block and retry. 7174444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath */ 7184444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath private static ZygoteState openZygoteSocketIfNeeded(String abi) throws ZygoteStartFailedEx { 7194444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath if (primaryZygoteState == null || primaryZygoteState.isClosed()) { 72064cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath try { 72164cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath primaryZygoteState = ZygoteState.connect(ZYGOTE_SOCKET); 72264cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } catch (IOException ioe) { 72364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath throw new ZygoteStartFailedEx("Error connecting to primary zygote", ioe); 72464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } 7254444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 7264444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 7274444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath if (primaryZygoteState.matches(abi)) { 7284444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath return primaryZygoteState; 7294444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 7304444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 7314444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath // The primary zygote didn't match. Try the secondary. 7324444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath if (secondaryZygoteState == null || secondaryZygoteState.isClosed()) { 73364cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath try { 73464cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath secondaryZygoteState = ZygoteState.connect(SECONDARY_ZYGOTE_SOCKET); 73564cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } catch (IOException ioe) { 73664cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath throw new ZygoteStartFailedEx("Error connecting to secondary zygote", ioe); 73764cd907af99ce9702e8975a657ee437c2626f8b5Narayan Kamath } 7384444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 7394444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 7404444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath if (secondaryZygoteState.matches(abi)) { 7414444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath return secondaryZygoteState; 7424444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 7434444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 7444444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath throw new ZygoteStartFailedEx("Unsupported zygote ABI: " + abi); 7454444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath } 7464444dcd0adc7e035cca030b90ed91f0cff9a772bNarayan Kamath 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns elapsed milliseconds of the time this process has run. 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Returns the number of milliseconds this process has return. 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native long getElapsedCpuTime(); 752ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe 753ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe /** 754ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe * Returns true if the current process is a 64-bit runtime. 755ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe */ 756ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe public static final boolean is64Bit() { 757ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe return VMRuntime.getRuntime().is64Bit(); 758ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe } 759ee0cdce2a80f8cc033378134e37092bc467c0f38Andreas Gampe 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the identifier of this process, which can be used with 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #killProcess} and {@link #sendSignal}. 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 764406ec15647b7664cadadde41dbaaa10e298c582bJeff Hao public static final int myPid() { 76534385d352da19805ae948215e2edbeedd16b7941Elliott Hughes return Os.getpid(); 766406ec15647b7664cadadde41dbaaa10e298c582bJeff Hao } 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 76980b12fcaaec458377d966803c3a61504f0897ea1Romain Guy * Returns the identifier of this process' parent. 77080b12fcaaec458377d966803c3a61504f0897ea1Romain Guy * @hide 77180b12fcaaec458377d966803c3a61504f0897ea1Romain Guy */ 7722a805f930463ece57bc0d0fd8dee7f5d50681b22Elliott Hughes public static final int myPpid() { 77334385d352da19805ae948215e2edbeedd16b7941Elliott Hughes return Os.getppid(); 7742a805f930463ece57bc0d0fd8dee7f5d50681b22Elliott Hughes } 77580b12fcaaec458377d966803c3a61504f0897ea1Romain Guy 77680b12fcaaec458377d966803c3a61504f0897ea1Romain Guy /** 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the identifier of the calling thread, which be used with 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}. 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7806d4b1e24aef5b74b40de4d8f6e63c21874ce8e3aElliott Hughes public static final int myTid() { 78134385d352da19805ae948215e2edbeedd16b7941Elliott Hughes return Os.gettid(); 7826d4b1e24aef5b74b40de4d8f6e63c21874ce8e3aElliott Hughes } 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7857d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * Returns the identifier of this process's uid. This is the kernel uid 7867d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * that the process is running under, which is the identity of its 7877d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * app-specific sandbox. It is different from {@link #myUserHandle} in that 7887d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * a uid identifies a specific app sandbox in a specific user. 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 790406ec15647b7664cadadde41dbaaa10e298c582bJeff Hao public static final int myUid() { 79134385d352da19805ae948215e2edbeedd16b7941Elliott Hughes return Os.getuid(); 792406ec15647b7664cadadde41dbaaa10e298c582bJeff Hao } 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 79579af1dd54c16cde063152922b42c96d72ae9eca8Dianne Hackborn * Returns this process's user handle. This is the 7967d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * user the process is running under. It is distinct from 7977d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * {@link #myUid()} in that a particular user will have multiple 7987d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn * distinct apps running under it each with their own uid. 7997d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn */ 80079af1dd54c16cde063152922b42c96d72ae9eca8Dianne Hackborn public static final UserHandle myUserHandle() { 80179af1dd54c16cde063152922b42c96d72ae9eca8Dianne Hackborn return new UserHandle(UserHandle.getUserId(myUid())); 8027d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn } 8037d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn 8047d19e0242faac8017033dabb872cdf1542fa184cDianne Hackborn /** 805a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn * Returns whether the current process is in an isolated sandbox. 806a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn * @hide 807a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn */ 808a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn public static final boolean isIsolated() { 8099527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey return isIsolated(myUid()); 8109527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey } 8119527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey 8129527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey /** {@hide} */ 8139527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey public static final boolean isIsolated(int uid) { 8149527b223a9d4a4d149bb005afc77148dbeeff785Jeff Sharkey uid = UserHandle.getAppId(uid); 815a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn return uid >= FIRST_ISOLATED_UID && uid <= LAST_ISOLATED_UID; 816a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn } 817a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn 818a0c283eac33dd2da72235751bbfa4f2d9898d5eaDianne Hackborn /** 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the UID assigned to a particular user name, or -1 if there is 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * none. If the given string consists of only numbers, it is converted 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * directly to a uid. 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int getUidForName(String name); 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the GID assigned to a particular user name, or -1 if there is 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * none. If the given string consists of only numbers, it is converted 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * directly to a gid. 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int getGidForName(String name); 831819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani 832819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani /** 833819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani * Returns a uid for a currently running process. 834819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani * @param pid the process id 835819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani * @return the uid of the process, or -1 if the process is not running. 836819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani * @hide pending API council review 837819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani */ 838819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani public static final int getUidForPid(int pid) { 839819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani String[] procStatusLabels = { "Uid:" }; 840819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani long[] procStatusValues = new long[1]; 841819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani procStatusValues[0] = -1; 842819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani Process.readProcLines("/proc/" + pid + "/status", procStatusLabels, procStatusValues); 843819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani return (int) procStatusValues[0]; 844819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani } 845819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 847ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown * Returns the parent process id for a currently running process. 848ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown * @param pid the process id 849ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown * @return the parent process id of the process, or -1 if the process is not running. 850ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown * @hide 851ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown */ 852ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown public static final int getParentPid(int pid) { 853ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown String[] procStatusLabels = { "PPid:" }; 854ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown long[] procStatusValues = new long[1]; 855ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown procStatusValues[0] = -1; 856ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown Process.readProcLines("/proc/" + pid + "/status", procStatusLabels, procStatusValues); 857ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown return (int) procStatusValues[0]; 858ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown } 859ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown 860ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown /** 86107b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * Returns the thread group leader id for a currently running thread. 86207b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * @param tid the thread id 86307b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * @return the thread group leader id of the thread, or -1 if the thread is not running. 86407b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * This is same as what getpid(2) would return if called by tid. 86507b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten * @hide 86607b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten */ 86707b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten public static final int getThreadGroupLeader(int tid) { 86807b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten String[] procStatusLabels = { "Tgid:" }; 86907b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten long[] procStatusValues = new long[1]; 87007b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten procStatusValues[0] = -1; 87107b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten Process.readProcLines("/proc/" + tid + "/status", procStatusLabels, procStatusValues); 87207b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten return (int) procStatusValues[0]; 87307b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten } 87407b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten 87507b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten /** 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the priority of a thread, based on Linux priorities. 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param tid The identifier of the thread/process to change. 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param priority A Linux priority level, from -20 for highest scheduling 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority to 19 for lowest scheduling priority. 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException Throws IllegalArgumentException if 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <var>tid</var> does not exist. 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws SecurityException Throws SecurityException if your process does 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not have permission to modify the given thread, or to use the given 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority. 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void setThreadPriority(int tid, int priority) 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IllegalArgumentException, SecurityException; 890e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 891e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat /** 892160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * Call with 'false' to cause future calls to {@link #setThreadPriority(int)} to 893160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * throw an exception if passed a background-level thread priority. This is only 894160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * effective if the JNI layer is built with GUARD_THREAD_PRIORITY defined to 1. 895160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * 896160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * @hide 897160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate */ 898160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate public static final native void setCanSelfBackground(boolean backgroundOk); 899160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate 900160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate /** 901e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * Sets the scheduling group for a thread. 902e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @hide 903f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * @param tid The identifier of the thread to change. 904f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * @param group The target group for this thread from THREAD_GROUP_*. 905e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * 906e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @throws IllegalArgumentException Throws IllegalArgumentException if 907e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * <var>tid</var> does not exist. 908e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @throws SecurityException Throws SecurityException if your process does 909e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * not have permission to modify the given thread, or to use the given 910e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * priority. 911f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * If the thread is a thread group leader, that is it's gettid() == getpid(), 912f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * then the other threads in the same thread group are _not_ affected. 913e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat */ 914e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat public static final native void setThreadGroup(int tid, int group) 915e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat throws IllegalArgumentException, SecurityException; 916f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten 9173e458241d9930465a20a861ecb42744355d48e48San Mehat /** 9183e458241d9930465a20a861ecb42744355d48e48San Mehat * Sets the scheduling group for a process and all child threads 9193e458241d9930465a20a861ecb42744355d48e48San Mehat * @hide 920f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * @param pid The identifier of the process to change. 921f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * @param group The target group for this process from THREAD_GROUP_*. 9223e458241d9930465a20a861ecb42744355d48e48San Mehat * 9233e458241d9930465a20a861ecb42744355d48e48San Mehat * @throws IllegalArgumentException Throws IllegalArgumentException if 9243e458241d9930465a20a861ecb42744355d48e48San Mehat * <var>tid</var> does not exist. 9253e458241d9930465a20a861ecb42744355d48e48San Mehat * @throws SecurityException Throws SecurityException if your process does 9263e458241d9930465a20a861ecb42744355d48e48San Mehat * not have permission to modify the given thread, or to use the given 9273e458241d9930465a20a861ecb42744355d48e48San Mehat * priority. 928f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * 929f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * group == THREAD_GROUP_DEFAULT means to move all non-background priority 930f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * threads to the foreground scheduling group, but to leave background 931f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * priority threads alone. group == THREAD_GROUP_BG_NONINTERACTIVE moves all 932f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * threads, regardless of priority, to the background scheduling group. 933f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten * group == THREAD_GROUP_FOREGROUND is not allowed. 9343e458241d9930465a20a861ecb42744355d48e48San Mehat */ 9353e458241d9930465a20a861ecb42744355d48e48San Mehat public static final native void setProcessGroup(int pid, int group) 9363e458241d9930465a20a861ecb42744355d48e48San Mehat throws IllegalArgumentException, SecurityException; 9379e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey 9389e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey /** 9399e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey * Return the scheduling group of requested process. 9409e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey * 9419e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey * @hide 9429e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey */ 9439e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey public static final native int getProcessGroup(int pid) 9449e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey throws IllegalArgumentException, SecurityException; 9459e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the priority of the calling thread, based on Linux priorities. See 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)} for more information. 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param priority A Linux priority level, from -20 for highest scheduling 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority to 19 for lowest scheduling priority. 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException Throws IllegalArgumentException if 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <var>tid</var> does not exist. 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws SecurityException Throws SecurityException if your process does 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not have permission to modify the given thread, or to use the given 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority. 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setThreadPriority(int, int) 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void setThreadPriority(int priority) 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IllegalArgumentException, SecurityException; 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return the current priority of a thread, based on Linux priorities. 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param tid The identifier of the thread/process to change. 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Returns the current priority, as a Linux priority level, 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * from -20 for highest scheduling priority to 19 for lowest scheduling 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority. 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException Throws IllegalArgumentException if 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <var>tid</var> does not exist. 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int getThreadPriority(int tid) 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IllegalArgumentException; 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9806793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * Set the scheduling policy and priority of a thread, based on Linux. 9816793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * 9826793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @param tid The identifier of the thread/process to change. 9836793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @param policy A Linux scheduling policy such as SCHED_OTHER etc. 9846793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @param priority A Linux priority level in a range appropriate for the given policy. 9856793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * 9866793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @throws IllegalArgumentException Throws IllegalArgumentException if 9876793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * <var>tid</var> does not exist, or if <var>priority</var> is out of range for the policy. 9886793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * @throws SecurityException Throws SecurityException if your process does 9896793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * not have permission to modify the given thread, or to use the given 9906793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * scheduling policy or priority. 9916793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * 9926793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten * {@hide} 9936793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten */ 9946793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten public static final native void setThreadScheduler(int tid, int policy, int priority) 9956793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten throws IllegalArgumentException; 9966793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 9976793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten /** 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determine whether the current environment supports multiple processes. 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Returns true if the system can run in multiple processes, else 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false if everything is running in a single process. 100210e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown * 100310e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown * @deprecated This method always returns true. Do not use. 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 100510e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown @Deprecated 100610e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown public static final boolean supportsProcesses() { 100710e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown return true; 100810e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown } 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10115534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * Adjust the swappiness level for a process. 10125534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * 10135534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * @param pid The process identifier to set. 10145534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * @param is_increased Whether swappiness should be increased or default. 10155534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * 10165534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * @return Returns true if the underlying system supports this 10175534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * feature, else false. 10185534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * 10195534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand * {@hide} 10205534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand */ 10215534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand public static final native boolean setSwappiness(int pid, boolean is_increased); 10225534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand 10235534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand /** 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Change this process's argv[0] parameter. This can be useful to show 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * more descriptive information in things like the 'ps' command. 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The new name of this process. 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@hide} 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void setArgV0(String text); 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Kill the process with the given PID. 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that, though this API allows us to request to 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * kill any process based on its PID, the kernel will 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * still impose standard restrictions on which PIDs you 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * are actually able to kill. Typically this means only 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the process running the caller's packages/application 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and any additional processes created by that app; packages 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * sharing a common UID will also be able to kill each 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * other's processes. 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final void killProcess(int pid) { 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sendSignal(pid, SIGNAL_KILL); 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int setUid(int uid); 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int setGid(int uid); 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Send a signal to the given process. 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pid The pid of the target process. 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param signal The signal to send. 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void sendSignal(int pid, int signal); 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1062906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn /** 1063906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * @hide 1064906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * Private impl for avoiding a log message... DO NOT USE without doing 1065906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * your own log, or the Android Illuminati will find you some night and 1066906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * beat you up. 1067906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn */ 1068906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn public static final void killProcessQuiet(int pid) { 1069906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn sendSignalQuiet(pid, SIGNAL_KILL); 1070906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn } 1071906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn 1072906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn /** 1073906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * @hide 1074906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * Private impl for avoiding a log message... DO NOT USE without doing 1075906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * your own log, or the Android Illuminati will find you some night and 1076906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * beat you up. 1077906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn */ 1078906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn public static final native void sendSignalQuiet(int pid, int signal); 1079906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 10810bca96bcbfe559f9330a01f723c5c9cba51ec05aMarco Nelissen public static final native long getFreeMemory(); 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 108459325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn public static final native long getTotalMemory(); 108559325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn 108659325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn /** @hide */ 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void readProcLines(String path, 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String[] reqFields, long[] outSizes); 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int[] getPids(String path, int[] lastArray); 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_TERM_MASK = 0xff; 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_ZERO_TERM = 0; 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_SPACE_TERM = (int)' '; 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 1100c64edde69d18498fb2954f71a546357b07ab996aEvan Millar public static final int PROC_TAB_TERM = (int)'\t'; 1101c64edde69d18498fb2954f71a546357b07ab996aEvan Millar /** @hide */ 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_COMBINE = 0x100; 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_PARENS = 0x200; 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 110613ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn public static final int PROC_QUOTES = 0x400; 110713ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn /** @hide */ 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_OUT_STRING = 0x1000; 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_OUT_LONG = 0x2000; 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_OUT_FLOAT = 0x4000; 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native boolean readProcFile(String file, int[] format, 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String[] outStrings, long[] outLongs, float[] outFloats); 1117c64edde69d18498fb2954f71a546357b07ab996aEvan Millar 1118c64edde69d18498fb2954f71a546357b07ab996aEvan Millar /** @hide */ 1119c64edde69d18498fb2954f71a546357b07ab996aEvan Millar public static final native boolean parseProcLine(byte[] buffer, int startIndex, 1120c64edde69d18498fb2954f71a546357b07ab996aEvan Millar int endIndex, int[] format, String[] outStrings, long[] outLongs, float[] outFloats); 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1122f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn /** @hide */ 1123f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn public static final native int[] getPidsForCommands(String[] cmds); 1124f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Gets the total Pss value for a given process, in bytes. 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pid the process to the Pss for 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the total Pss value for the given process in bytes, 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or -1 if the value cannot be determined 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native long getPss(int pid); 11343f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown 11353f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown /** 11363f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * Specifies the outcome of having started a process. 11373f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * @hide 11383f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown */ 11393f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown public static final class ProcessStartResult { 11403f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown /** 11413f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * The PID of the newly started process. 11423f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * Always >= 0. (If the start failed, an exception will have been thrown instead.) 11433f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown */ 11443f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown public int pid; 11453f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown 11463f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown /** 11473f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown * True if the process was started with a wrapper attached. 11483f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown */ 11493f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown public boolean usingWrapper; 11503f9dd287b99340efaaa257759e71a8f81b2ed113Jeff Brown } 11510769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross 11520769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross /** 11530769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross * Kill all processes in a process group started for the given 11540769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross * pid. 11550769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross * @hide 11560769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross */ 11570769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross public static final native int killProcessGroup(int uid, int pid); 11580769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross 11590769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross /** 11600769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross * Remove all process groups. Expected to be called when ActivityManager 11610769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross * is restarted. 11620769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross * @hide 11630769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross */ 11640769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross public static final native void removeAllProcessGroups(); 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1166