Process.java revision ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3
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.LocalSocketAddress; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.net.LocalSocket; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport dalvik.system.Zygote; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.BufferedWriter; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.DataInputStream; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.IOException; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.OutputStreamWriter; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/*package*/ class ZygoteStartFailedEx extends Exception { 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Something prevented the zygote process startup from happening normally 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ZygoteStartFailedEx() {}; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ZygoteStartFailedEx(String s) {super(s);} 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ZygoteStartFailedEx(Throwable cause) {super(cause);} 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tools for managing OS processes. 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class Process { 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final String LOG_TAG = "Process"; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final String ZYGOTE_SOCKET = "zygote"; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Name of a process for running the platform's media services. 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@hide} 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final String ANDROID_SHARED_MEDIA = "com.android.process.media"; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Name of the process that Google content providers can share. 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@hide} 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final String GOOGLE_SHARED_APP_CONTENT = "com.google.process.content"; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the UID/GID under which system code runs. 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int SYSTEM_UID = 1000; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the UID/GID under which the telephony code runs. 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PHONE_UID = 1001; 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 71854060af30f928c0a65591e9c8314ae17056e6b8Dianne Hackborn * Defines the UID/GID for the user shell. 72854060af30f928c0a65591e9c8314ae17056e6b8Dianne Hackborn * @hide 73854060af30f928c0a65591e9c8314ae17056e6b8Dianne Hackborn */ 74854060af30f928c0a65591e9c8314ae17056e6b8Dianne Hackborn public static final int SHELL_UID = 2000; 75854060af30f928c0a65591e9c8314ae17056e6b8Dianne Hackborn 76854060af30f928c0a65591e9c8314ae17056e6b8Dianne Hackborn /** 77d42685d5de1dbd6d75b48d42418f370adaa4daefMike Lockwood * Defines the UID/GID for the log group. 78d42685d5de1dbd6d75b48d42418f370adaa4daefMike Lockwood * @hide 79d42685d5de1dbd6d75b48d42418f370adaa4daefMike Lockwood */ 80d42685d5de1dbd6d75b48d42418f370adaa4daefMike Lockwood public static final int LOG_UID = 1007; 81d42685d5de1dbd6d75b48d42418f370adaa4daefMike Lockwood 82d42685d5de1dbd6d75b48d42418f370adaa4daefMike Lockwood /** 83d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani * Defines the UID/GID for the WIFI supplicant process. 84d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani * @hide 85d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani */ 86d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani public static final int WIFI_UID = 1010; 87d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani 88d158214511a3c04753de04fa6389e46d33135c38Amith Yamasani /** 8958fd98accbff409601587b3357f2b3acf370f606Mike Lockwood * Defines the GID for the group that allows write access to the SD card. 9058fd98accbff409601587b3357f2b3acf370f606Mike Lockwood * @hide 9158fd98accbff409601587b3357f2b3acf370f606Mike Lockwood */ 9258fd98accbff409601587b3357f2b3acf370f606Mike Lockwood public static final int SDCARD_RW_GID = 1015; 9358fd98accbff409601587b3357f2b3acf370f606Mike Lockwood 9458fd98accbff409601587b3357f2b3acf370f606Mike Lockwood /** 958c2a1a90a81f04573bfa578eab32f5fd4a30eafbBrian Carlstrom * Defines the UID for the KeyChain service. 968c2a1a90a81f04573bfa578eab32f5fd4a30eafbBrian Carlstrom * @hide 978c2a1a90a81f04573bfa578eab32f5fd4a30eafbBrian Carlstrom */ 988c2a1a90a81f04573bfa578eab32f5fd4a30eafbBrian Carlstrom public static final int KEYCHAIN_UID = 1020; 998c2a1a90a81f04573bfa578eab32f5fd4a30eafbBrian Carlstrom 1008c2a1a90a81f04573bfa578eab32f5fd4a30eafbBrian Carlstrom /** 101cd0e839a2448deea50f79bddeba782c546b33893Nick Pelly * Defines the UID/GID for the NFC service process. 102cd0e839a2448deea50f79bddeba782c546b33893Nick Pelly * @hide 103cd0e839a2448deea50f79bddeba782c546b33893Nick Pelly */ 10484d340781b1e148ead9fb4790755737c9dcc1cdeJeff Hamilton public static final int NFC_UID = 1025; 105cd0e839a2448deea50f79bddeba782c546b33893Nick Pelly 106cd0e839a2448deea50f79bddeba782c546b33893Nick Pelly /** 107dcaa10cd361a543cfa93bbb5c53444f437bd07a4Mike Lockwood * Defines the GID for the group that allows write access to the internal media storage. 108dcaa10cd361a543cfa93bbb5c53444f437bd07a4Mike Lockwood * @hide 109dcaa10cd361a543cfa93bbb5c53444f437bd07a4Mike Lockwood */ 110dcaa10cd361a543cfa93bbb5c53444f437bd07a4Mike Lockwood public static final int MEDIA_RW_GID = 1023; 111dcaa10cd361a543cfa93bbb5c53444f437bd07a4Mike Lockwood 112dcaa10cd361a543cfa93bbb5c53444f437bd07a4Mike Lockwood /** 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the start of a range of UIDs (and GIDs), going from this 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * number to {@link #LAST_APPLICATION_UID} that are reserved for assigning 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to applications. 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int FIRST_APPLICATION_UID = 10000; 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Last of application-specific UIDs starting at 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #FIRST_APPLICATION_UID}. 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int LAST_APPLICATION_UID = 99999; 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines a secondary group id for access to the bluetooth hardware. 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int BLUETOOTH_GID = 2000; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of application threads. 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_DEFAULT = 0; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * *************************************** 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ** Keep in sync with utils/threads.h ** 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * *************************************** 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Lowest available thread priority. Only for those who really, really 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * don't want to run if anything else is happening. 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_LOWEST = 19; 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority background threads. This gives your thread a slightly 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * lower than normal priority, so that it will have less chance of impacting 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the responsiveness of the user interface. 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_BACKGROUND = 10; 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of threads that are currently running a user interface 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that the user is interacting with. Applications can not normally 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * change to this priority; the system will automatically adjust your 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * application threads as the user moves through the UI. 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_FOREGROUND = -2; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of system display threads, involved in updating 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the user interface. Applications can not 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * normally change to this priority. 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_DISPLAY = -4; 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of the most important display threads, for compositing 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the screen and retrieving input events. Applications can not normally 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * change to this priority. 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_URGENT_DISPLAY = -8; 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of audio threads. Applications can not normally 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * change to this priority. 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_AUDIO = -16; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Standard priority of the most important audio threads. 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Applications can not normally change to this priority. 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Use with {@link #setThreadPriority(int)} and 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}, <b>not</b> with the normal 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link java.lang.Thread} class. 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_URGENT_AUDIO = -19; 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Minimum increment to make a priority more favorable. 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_MORE_FAVORABLE = -1; 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Minimum increment to make a priority less favorable. 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int THREAD_PRIORITY_LESS_FAVORABLE = +1; 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 221e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat /** 222e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * Default thread group - gets a 'normal' share of the CPU 223e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @hide 224e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat */ 225e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat public static final int THREAD_GROUP_DEFAULT = 0; 226e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 227e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat /** 228e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * Background non-interactive thread group - All threads in 229e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * this group are scheduled with a reduced share of the CPU. 230e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @hide 231e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat */ 232e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat public static final int THREAD_GROUP_BG_NONINTERACTIVE = 1; 233e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 234e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat /** 235e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * Foreground 'boost' thread group - All threads in 236e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * this group are scheduled with an increased share of the CPU 237e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @hide 238e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat **/ 239e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat public static final int THREAD_GROUP_FG_BOOST = 2; 240e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int SIGNAL_QUIT = 3; 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int SIGNAL_KILL = 9; 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int SIGNAL_USR1 = 10; 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // State for communicating with zygote process 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static LocalSocket sZygoteSocket; 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static DataInputStream sZygoteInputStream; 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static BufferedWriter sZygoteWriter; 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** true if previous zygote open failed */ 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static boolean sPreviousZygoteOpenFailed; 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Start a new process. 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>If processes are enabled, a new process is created and the 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * static main() function of a <var>processClass</var> is executed there. 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The process will continue running after this function returns. 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>If processes are not enabled, a new thread in the caller's 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * process is created and main() of <var>processClass</var> called there. 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>The niceName parameter, if not an empty string, is a custom name to 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * give to the process instead of using processClass. This allows you to 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * make easily identifyable processes even if you are using the same base 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <var>processClass</var> to start them. 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param processClass The class to use as the process's main entry 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * point. 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param niceName A more readable name to use for the process. 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param uid The user-id under which the process will run. 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gid The group-id under which the process will run. 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gids Additional group-ids associated with the process. 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enableDebugger True if debugging should be enabled for this process. 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param zygoteArgs Additional arguments to supply to the zygote process. 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return int If > 0 the pid of the new process; if 0 the process is 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being emulated by a thread 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws RuntimeException on fatal start failure 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@hide} 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int start(final String processClass, 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final String niceName, 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int uid, int gid, int[] gids, 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int debugFlags, 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String[] zygoteArgs) 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project { 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (supportsProcesses()) { 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return startViaZygote(processClass, niceName, uid, gid, gids, 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project debugFlags, zygoteArgs); 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (ZygoteStartFailedEx ex) { 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(LOG_TAG, 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Starting VM process through Zygote failed"); 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException( 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "Starting VM process through Zygote failed", ex); 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Running in single-process mode 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Runnable runnable = new Runnable() { 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Process.invokeStaticMain(processClass); 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Thread constructors must not be called with null names (see spec). 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (niceName != null) { 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new Thread(runnable, niceName).start(); 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new Thread(runnable).start(); 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Start a new process. Don't supply a custom nice name. 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@hide} 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int start(String processClass, int uid, int gid, 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] gids, int debugFlags, String[] zygoteArgs) { 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return start(processClass, "", uid, gid, gids, 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project debugFlags, zygoteArgs); 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void invokeStaticMain(String className) { 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Class cl; 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object args[] = new Object[1]; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project args[0] = new String[0]; //this is argv 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cl = Class.forName(className); 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project cl.getMethod("main", new Class[] { String[].class }) 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project .invoke(null, args); 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (Exception ex) { 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // can be: ClassNotFoundException, 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // NoSuchMethodException, SecurityException, 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // IllegalAccessException, IllegalArgumentException 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // InvocationTargetException 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // or uncaught exception from main() 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(LOG_TAG, "Exception invoking static main on " 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + className, ex); 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException(ex); 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** retry interval for opening a zygote socket */ 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int ZYGOTE_RETRY_MILLIS = 500; 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tries to open socket to Zygote process if not already open. If 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * already open, does nothing. May block and retry. 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void openZygoteSocketIfNeeded() 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws ZygoteStartFailedEx { 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int retryCount; 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sPreviousZygoteOpenFailed) { 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If we've failed before, expect that we'll fail again and 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * don't pause for retries. 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project retryCount = 0; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project retryCount = 10; 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See bug #811181: Sometimes runtime can make it up before zygote. 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Really, we'd like to do something better to avoid this condition, 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * but for now just wait a bit... 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int retry = 0 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ; (sZygoteSocket == null) && (retry < (retryCount + 1)) 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ; retry++ ) { 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (retry > 0) { 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i("Zygote", "Zygote not up yet, sleeping..."); 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Thread.sleep(ZYGOTE_RETRY_MILLIS); 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (InterruptedException ex) { 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // should never happen 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteSocket = new LocalSocket(); 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteSocket.connect(new LocalSocketAddress(ZYGOTE_SOCKET, 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LocalSocketAddress.Namespace.RESERVED)); 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteInputStream 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new DataInputStream(sZygoteSocket.getInputStream()); 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteWriter = 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new BufferedWriter( 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project new OutputStreamWriter( 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteSocket.getOutputStream()), 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 256); 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.i("Zygote", "Process: zygote socket opened"); 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sPreviousZygoteOpenFailed = false; 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sZygoteSocket != null) { 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteSocket.close(); 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex2) { 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(LOG_TAG,"I/O exception on close after exception", 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ex2); 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteSocket = null; 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sZygoteSocket == null) { 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sPreviousZygoteOpenFailed = true; 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ZygoteStartFailedEx("connect failed"); 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends an argument list to the zygote process, which starts a new child 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and returns the child's pid. Please note: the present implementation 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * replaces newlines in the argument list with spaces. 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param args argument list 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return PID of new child process 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ZygoteStartFailedEx if process start failed for any reason 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static int zygoteSendArgsAndGetPid(ArrayList<String> args) 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws ZygoteStartFailedEx { 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int pid; 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project openZygoteSocketIfNeeded(); 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See com.android.internal.os.ZygoteInit.readArgumentList() 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Presently the wire format to the zygote process is: 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a) a count of arguments (argc, in essence) 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * b) a number of newline-separated argument strings equal to count 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * After the zygote process reads these it will write the pid of 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the child or -1 on failure. 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteWriter.write(Integer.toString(args.size())); 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteWriter.newLine(); 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sz = args.size(); 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < sz; i++) { 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String arg = args.get(i); 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (arg.indexOf('\n') >= 0) { 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ZygoteStartFailedEx( 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "embedded newlines not allowed"); 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteWriter.write(arg); 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteWriter.newLine(); 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteWriter.flush(); 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Should there be a timeout on this? 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pid = sZygoteInputStream.readInt(); 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (pid < 0) { 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ZygoteStartFailedEx("fork() failed"); 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex) { 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sZygoteSocket != null) { 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteSocket.close(); 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IOException ex2) { 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we're going to fail anyway 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.e(LOG_TAG,"I/O exception on routine close", ex2); 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sZygoteSocket = null; 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ZygoteStartFailedEx(ex); 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return pid; 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Starts a new process via the zygote mechanism. 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param processClass Class name whose static main() to run 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param niceName 'nice' process name to appear in ps 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param uid a POSIX uid that the new process should setuid() to 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gid a POSIX gid that the new process shuold setgid() to 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param gids null-ok; a list of supplementary group IDs that the 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * new process should setgroup() to. 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enableDebugger True if debugging should be enabled for this process. 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param extraArgs Additional arguments to supply to the zygote process. 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return PID 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws ZygoteStartFailedEx if process start failed for any reason 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static int startViaZygote(final String processClass, 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final String niceName, 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int uid, final int gid, 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] gids, 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int debugFlags, 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String[] extraArgs) 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws ZygoteStartFailedEx { 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int pid; 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project synchronized(Process.class) { 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<String> argsForZygote = new ArrayList<String>(); 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // --runtime-init, --setuid=, --setgid=, 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and --setgroups= must go first 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--runtime-init"); 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--setuid=" + uid); 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--setgid=" + gid); 53123085b781e145ed684e7270af1d5ced6800b8effBen Cheng if ((debugFlags & Zygote.DEBUG_ENABLE_SAFEMODE) != 0) { 53223085b781e145ed684e7270af1d5ced6800b8effBen Cheng argsForZygote.add("--enable-safemode"); 53323085b781e145ed684e7270af1d5ced6800b8effBen Cheng } 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((debugFlags & Zygote.DEBUG_ENABLE_DEBUGGER) != 0) { 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--enable-debugger"); 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((debugFlags & Zygote.DEBUG_ENABLE_CHECKJNI) != 0) { 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--enable-checkjni"); 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((debugFlags & Zygote.DEBUG_ENABLE_ASSERT) != 0) { 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--enable-assert"); 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //TODO optionally enable debuger 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //argsForZygote.add("--enable-debugger"); 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // --setgroups is a comma-separated list 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gids != null && gids.length > 0) { 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project StringBuilder sb = new StringBuilder(); 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sb.append("--setgroups="); 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sz = gids.length; 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < sz; i++) { 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i != 0) { 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sb.append(','); 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sb.append(gids[i]); 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add(sb.toString()); 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (niceName != null) { 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add("--nice-name=" + niceName); 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add(processClass); 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (extraArgs != null) { 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (String arg : extraArgs) { 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project argsForZygote.add(arg); 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pid = zygoteSendArgsAndGetPid(argsForZygote); 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (pid <= 0) { 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ZygoteStartFailedEx("zygote start failed:" + pid); 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return pid; 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns elapsed milliseconds of the time this process has run. 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Returns the number of milliseconds this process has return. 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native long getElapsedCpuTime(); 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the identifier of this process, which can be used with 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #killProcess} and {@link #sendSignal}. 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int myPid(); 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the identifier of the calling thread, which be used with 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)}. 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int myTid(); 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the identifier of this process's user. 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int myUid(); 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the UID assigned to a particular user name, or -1 if there is 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * none. If the given string consists of only numbers, it is converted 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * directly to a uid. 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int getUidForName(String name); 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the GID assigned to a particular user name, or -1 if there is 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * none. If the given string consists of only numbers, it is converted 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * directly to a gid. 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int getGidForName(String name); 621819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani 622819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani /** 623819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani * Returns a uid for a currently running process. 624819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani * @param pid the process id 625819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani * @return the uid of the process, or -1 if the process is not running. 626819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani * @hide pending API council review 627819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani */ 628819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani public static final int getUidForPid(int pid) { 629819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani String[] procStatusLabels = { "Uid:" }; 630819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani long[] procStatusValues = new long[1]; 631819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani procStatusValues[0] = -1; 632819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani Process.readProcLines("/proc/" + pid + "/status", procStatusLabels, procStatusValues); 633819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani return (int) procStatusValues[0]; 634819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani } 635819f928f6a9dc3fdf408236f33e17f03a7dfed2cAmith Yamasani 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 637ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown * Returns the parent process id for a currently running process. 638ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown * @param pid the process id 639ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown * @return the parent process id of the process, or -1 if the process is not running. 640ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown * @hide 641ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown */ 642ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown public static final int getParentPid(int pid) { 643ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown String[] procStatusLabels = { "PPid:" }; 644ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown long[] procStatusValues = new long[1]; 645ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown procStatusValues[0] = -1; 646ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown Process.readProcLines("/proc/" + pid + "/status", procStatusLabels, procStatusValues); 647ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown return (int) procStatusValues[0]; 648ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown } 649ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown 650ebed7d6e35f7f960e6e6add2b8ab7c7a31a511c3Jeff Brown /** 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the priority of a thread, based on Linux priorities. 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param tid The identifier of the thread/process to change. 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param priority A Linux priority level, from -20 for highest scheduling 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority to 19 for lowest scheduling priority. 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException Throws IllegalArgumentException if 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <var>tid</var> does not exist. 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws SecurityException Throws SecurityException if your process does 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not have permission to modify the given thread, or to use the given 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority. 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void setThreadPriority(int tid, int priority) 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IllegalArgumentException, SecurityException; 665e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 666e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat /** 667160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * Call with 'false' to cause future calls to {@link #setThreadPriority(int)} to 668160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * throw an exception if passed a background-level thread priority. This is only 669160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * effective if the JNI layer is built with GUARD_THREAD_PRIORITY defined to 1. 670160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * 671160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate * @hide 672160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate */ 673160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate public static final native void setCanSelfBackground(boolean backgroundOk); 674160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate 675160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate /** 676e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * Sets the scheduling group for a thread. 677e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @hide 678e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @param tid The indentifier of the thread/process to change. 679e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @param group The target group for this thread/process. 680e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * 681e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @throws IllegalArgumentException Throws IllegalArgumentException if 682e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * <var>tid</var> does not exist. 683e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * @throws SecurityException Throws SecurityException if your process does 684e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * not have permission to modify the given thread, or to use the given 685e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat * priority. 686e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat */ 687e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat public static final native void setThreadGroup(int tid, int group) 688e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat throws IllegalArgumentException, SecurityException; 6893e458241d9930465a20a861ecb42744355d48e48San Mehat /** 6903e458241d9930465a20a861ecb42744355d48e48San Mehat * Sets the scheduling group for a process and all child threads 6913e458241d9930465a20a861ecb42744355d48e48San Mehat * @hide 6923e458241d9930465a20a861ecb42744355d48e48San Mehat * @param pid The indentifier of the process to change. 6933e458241d9930465a20a861ecb42744355d48e48San Mehat * @param group The target group for this process. 6943e458241d9930465a20a861ecb42744355d48e48San Mehat * 6953e458241d9930465a20a861ecb42744355d48e48San Mehat * @throws IllegalArgumentException Throws IllegalArgumentException if 6963e458241d9930465a20a861ecb42744355d48e48San Mehat * <var>tid</var> does not exist. 6973e458241d9930465a20a861ecb42744355d48e48San Mehat * @throws SecurityException Throws SecurityException if your process does 6983e458241d9930465a20a861ecb42744355d48e48San Mehat * not have permission to modify the given thread, or to use the given 6993e458241d9930465a20a861ecb42744355d48e48San Mehat * priority. 7003e458241d9930465a20a861ecb42744355d48e48San Mehat */ 7013e458241d9930465a20a861ecb42744355d48e48San Mehat public static final native void setProcessGroup(int pid, int group) 7023e458241d9930465a20a861ecb42744355d48e48San Mehat throws IllegalArgumentException, SecurityException; 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the priority of the calling thread, based on Linux priorities. See 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #setThreadPriority(int, int)} for more information. 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param priority A Linux priority level, from -20 for highest scheduling 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority to 19 for lowest scheduling priority. 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException Throws IllegalArgumentException if 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <var>tid</var> does not exist. 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws SecurityException Throws SecurityException if your process does 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not have permission to modify the given thread, or to use the given 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority. 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setThreadPriority(int, int) 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void setThreadPriority(int priority) 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IllegalArgumentException, SecurityException; 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return the current priority of a thread, based on Linux priorities. 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param tid The identifier of the thread/process to change. 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Returns the current priority, as a Linux priority level, 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * from -20 for highest scheduling priority to 19 for lowest scheduling 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * priority. 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @throws IllegalArgumentException Throws IllegalArgumentException if 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <var>tid</var> does not exist. 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int getThreadPriority(int tid) 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throws IllegalArgumentException; 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determine whether the current environment supports multiple processes. 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Returns true if the system can run in multiple processes, else 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false if everything is running in a single process. 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native boolean supportsProcesses(); 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the out-of-memory badness adjustment for a process. 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pid The process identifier to set. 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param amt Adjustment value -- linux allows -16 to +15. 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Returns true if the underlying system supports this 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * feature, else false. 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@hide} 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native boolean setOomAdj(int pid, int amt); 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Change this process's argv[0] parameter. This can be useful to show 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * more descriptive information in things like the 'ps' command. 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The new name of this process. 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@hide} 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void setArgV0(String text); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Kill the process with the given PID. 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that, though this API allows us to request to 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * kill any process based on its PID, the kernel will 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * still impose standard restrictions on which PIDs you 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * are actually able to kill. Typically this means only 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the process running the caller's packages/application 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and any additional processes created by that app; packages 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * sharing a common UID will also be able to kill each 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * other's processes. 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final void killProcess(int pid) { 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sendSignal(pid, SIGNAL_KILL); 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int setUid(int uid); 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int setGid(int uid); 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Send a signal to the given process. 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pid The pid of the target process. 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param signal The signal to send. 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void sendSignal(int pid, int signal); 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 797906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn /** 798906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * @hide 799906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * Private impl for avoiding a log message... DO NOT USE without doing 800906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * your own log, or the Android Illuminati will find you some night and 801906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * beat you up. 802906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn */ 803906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn public static final void killProcessQuiet(int pid) { 804906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn sendSignalQuiet(pid, SIGNAL_KILL); 805906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn } 806906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn 807906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn /** 808906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * @hide 809906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * Private impl for avoiding a log message... DO NOT USE without doing 810906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * your own log, or the Android Illuminati will find you some night and 811906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn * beat you up. 812906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn */ 813906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn public static final native void sendSignalQuiet(int pid, int signal); 814906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 8160bca96bcbfe559f9330a01f723c5c9cba51ec05aMarco Nelissen public static final native long getFreeMemory(); 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native void readProcLines(String path, 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String[] reqFields, long[] outSizes); 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native int[] getPids(String path, int[] lastArray); 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_TERM_MASK = 0xff; 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_ZERO_TERM = 0; 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_SPACE_TERM = (int)' '; 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 832c64edde69d18498fb2954f71a546357b07ab996aEvan Millar public static final int PROC_TAB_TERM = (int)'\t'; 833c64edde69d18498fb2954f71a546357b07ab996aEvan Millar /** @hide */ 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_COMBINE = 0x100; 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_PARENS = 0x200; 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_OUT_STRING = 0x1000; 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_OUT_LONG = 0x2000; 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int PROC_OUT_FLOAT = 0x4000; 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** @hide */ 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native boolean readProcFile(String file, int[] format, 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String[] outStrings, long[] outLongs, float[] outFloats); 847c64edde69d18498fb2954f71a546357b07ab996aEvan Millar 848c64edde69d18498fb2954f71a546357b07ab996aEvan Millar /** @hide */ 849c64edde69d18498fb2954f71a546357b07ab996aEvan Millar public static final native boolean parseProcLine(byte[] buffer, int startIndex, 850c64edde69d18498fb2954f71a546357b07ab996aEvan Millar int endIndex, int[] format, String[] outStrings, long[] outLongs, float[] outFloats); 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Gets the total Pss value for a given process, in bytes. 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pid the process to the Pss for 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the total Pss value for the given process in bytes, 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or -1 if the value cannot be determined 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final native long getPss(int pid); 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 862