android_util_Process.cpp revision 4c0c4df7cfa0b4228ef547aa940674393cb2ab77
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* //device/libs/android_runtime/android_util_Process.cpp 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** Copyright 2006, The Android Open Source Project 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes** Licensed under the Apache License, Version 2.0 (the "License"); 669a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes** you may not use this file except in compliance with the License. 769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes** You may obtain a copy of the License at 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes** http://www.apache.org/licenses/LICENSE-2.0 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** 1169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes** Unless required by applicable law or agreed to in writing, software 1269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes** distributed under the License is distributed on an "AS IS" BASIS, 1369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes** See the License for the specific language governing permissions and 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project** limitations under the License. 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project*/ 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define LOG_TAG "Process" 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen// To make sure cpu_set_t is included from sched.h 21cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen#define _GNU_SOURCE 1 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/Log.h> 230795272aa226f4e965968a03daddc53ce30b7cdaMathias Agopian#include <binder/IPCThreadState.h> 240795272aa226f4e965968a03daddc53ce30b7cdaMathias Agopian#include <binder/IServiceManager.h> 25a23fcd7be8e40078a913b1a99222cdd89229e67bNarayan Kamath#include <cutils/process_name.h> 26f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten#include <cutils/sched_policy.h> 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/String8.h> 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/Vector.h> 290769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross#include <processgroup/processgroup.h> 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe#include "core_jni_helpers.h" 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "android_util_Binder.h" 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "JNIHelp.h" 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <dirent.h> 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <fcntl.h> 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <grp.h> 39c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn#include <inttypes.h> 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <pwd.h> 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <signal.h> 42c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn#include <sys/errno.h> 43c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn#include <sys/resource.h> 44c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn#include <sys/stat.h> 45c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn#include <sys/types.h> 466af763bec7c3f4d50fee8dd0046409bb8a7fe8f6Glenn Kasten#include <unistd.h> 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#define GUARD_THREAD_PRIORITY 0 49a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectusing namespace android; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 520f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampestatic const bool kDebugPolicy = false; 530f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampestatic const bool kDebugProc = false; 540f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe 55160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#if GUARD_THREAD_PRIORITY 56160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher TateMutex gKeyCreateMutex; 57160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tatestatic pthread_key_t gBgKey = -1; 58160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#endif 59160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate 60f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten// For both of these, err should be in the errno range (positive), not a status_t (negative) 614c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunkstatic void signalExceptionForError(JNIEnv* env, int err, int tid) { 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (err) { 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case EINVAL: 644c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", 654c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk "Invalid argument: %d", tid); 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case ESRCH: 684c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", 694c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk "Given thread %d does not exist", tid); 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case EPERM: 724c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk jniThrowExceptionFmt(env, "java/lang/SecurityException", 734c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk "No permission to modify given thread %d", tid); 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/RuntimeException", "Unknown error"); 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 814c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunkstatic void signalExceptionForPriorityError(JNIEnv* env, int err, int tid) { 82e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat switch (err) { 834c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk case EACCES: 844c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk jniThrowExceptionFmt(env, "java/lang/SecurityException", 854c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk "No permission to set the priority of %d", tid); 86e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat break; 874c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk default: 884c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForError(env, err, tid); 89e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat break; 904c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk } 914c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk 924c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk} 934c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk 944c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunkstatic void signalExceptionForGroupError(JNIEnv* env, int err, int tid) { 954c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk switch (err) { 96e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat case EACCES: 974c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk jniThrowExceptionFmt(env, "java/lang/SecurityException", 984c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk "No permission to set the group of %d", tid); 99e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat break; 100e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat default: 1014c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForError(env, err, tid); 102e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat break; 103e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat } 104e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat} 105e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjint android_os_Process_getUidForName(JNIEnv* env, jobject clazz, jstring name) 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (name == NULL) { 10969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jchar* str16 = env->GetStringCritical(name, 0); 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String8 name8; 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (str16) { 1166698749dd4d4d6513b26aa9071af290b956b68a7Dan Albert name8 = String8(reinterpret_cast<const char16_t*>(str16), 1176698749dd4d4d6513b26aa9071af290b956b68a7Dan Albert env->GetStringLength(name)); 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringCritical(name, str16); 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const size_t N = name8.size(); 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (N > 0) { 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* str = name8.string(); 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (size_t i=0; i<N; i++) { 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (str[i] < '0' || str[i] > '9') { 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project struct passwd* pwd = getpwnam(str); 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (pwd == NULL) { 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return pwd->pw_uid; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return atoi(str); 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjint android_os_Process_getGidForName(JNIEnv* env, jobject clazz, jstring name) 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (name == NULL) { 14169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jchar* str16 = env->GetStringCritical(name, 0); 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String8 name8; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (str16) { 1486698749dd4d4d6513b26aa9071af290b956b68a7Dan Albert name8 = String8(reinterpret_cast<const char16_t*>(str16), 1496698749dd4d4d6513b26aa9071af290b956b68a7Dan Albert env->GetStringLength(name)); 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringCritical(name, str16); 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const size_t N = name8.size(); 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (N > 0) { 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* str = name8.string(); 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (size_t i=0; i<N; i++) { 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (str[i] < '0' || str[i] > '9') { 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project struct group* grp = getgrnam(str); 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (grp == NULL) { 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return grp->gr_gid; 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return atoi(str); 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 170f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kastenvoid android_os_Process_setThreadGroup(JNIEnv* env, jobject clazz, int tid, jint grp) 171e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat{ 172c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn ALOGV("%s tid=%d grp=%" PRId32, __func__, tid, grp); 173f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten SchedPolicy sp = (SchedPolicy) grp; 174f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten int res = set_sched_policy(tid, sp); 175887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn if (res != NO_ERROR) { 1764c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForGroupError(env, -res, tid); 177e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat } 178e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat} 179e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 18069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughesvoid android_os_Process_setProcessGroup(JNIEnv* env, jobject clazz, int pid, jint grp) 1813e458241d9930465a20a861ecb42744355d48e48San Mehat{ 182c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn ALOGV("%s pid=%d grp=%" PRId32, __func__, pid, grp); 1833e458241d9930465a20a861ecb42744355d48e48San Mehat DIR *d; 1843e458241d9930465a20a861ecb42744355d48e48San Mehat char proc_path[255]; 1853e458241d9930465a20a861ecb42744355d48e48San Mehat struct dirent *de; 1863e458241d9930465a20a861ecb42744355d48e48San Mehat 187f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten if ((grp == SP_FOREGROUND) || (grp > SP_MAX)) { 1884c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForGroupError(env, EINVAL, pid); 1893e458241d9930465a20a861ecb42744355d48e48San Mehat return; 1903e458241d9930465a20a861ecb42744355d48e48San Mehat } 1913e458241d9930465a20a861ecb42744355d48e48San Mehat 192f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten bool isDefault = false; 193f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten if (grp < 0) { 194f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten grp = SP_FOREGROUND; 195f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten isDefault = true; 196f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten } 197f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten SchedPolicy sp = (SchedPolicy) grp; 198f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten 1990f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe if (kDebugPolicy) { 2000f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe char cmdline[32]; 2010f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe int fd; 202a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat 2030f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe strcpy(cmdline, "unknown"); 204a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat 2050f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe sprintf(proc_path, "/proc/%d/cmdline", pid); 2060f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe fd = open(proc_path, O_RDONLY); 2070f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe if (fd >= 0) { 2080f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe int rc = read(fd, cmdline, sizeof(cmdline)-1); 2090f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe cmdline[rc] = 0; 2100f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe close(fd); 2110f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe } 21269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 2130f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe if (sp == SP_BACKGROUND) { 2140f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe ALOGD("setProcessGroup: vvv pid %d (%s)", pid, cmdline); 2150f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe } else { 2160f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe ALOGD("setProcessGroup: ^^^ pid %d (%s)", pid, cmdline); 2170f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe } 218a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat } 2190f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe 2203e458241d9930465a20a861ecb42744355d48e48San Mehat sprintf(proc_path, "/proc/%d/task", pid); 2213e458241d9930465a20a861ecb42744355d48e48San Mehat if (!(d = opendir(proc_path))) { 2221fd0ec738b0a2b97cc28701aa37b1a9869afc684San Mehat // If the process exited on us, don't generate an exception 2231fd0ec738b0a2b97cc28701aa37b1a9869afc684San Mehat if (errno != ENOENT) 2244c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForGroupError(env, errno, pid); 2253e458241d9930465a20a861ecb42744355d48e48San Mehat return; 2263e458241d9930465a20a861ecb42744355d48e48San Mehat } 2273e458241d9930465a20a861ecb42744355d48e48San Mehat 2283e458241d9930465a20a861ecb42744355d48e48San Mehat while ((de = readdir(d))) { 2297e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat int t_pid; 2307e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat int t_pri; 2317e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat 2323e458241d9930465a20a861ecb42744355d48e48San Mehat if (de->d_name[0] == '.') 2333e458241d9930465a20a861ecb42744355d48e48San Mehat continue; 2347e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat t_pid = atoi(de->d_name); 2357e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat 2367e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat if (!t_pid) { 2373762c311729fe9f3af085c14c5c1fb471d994c03Steve Block ALOGE("Error getting pid for '%s'\n", de->d_name); 2387e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat continue; 2397e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat } 2401fd0ec738b0a2b97cc28701aa37b1a9869afc684San Mehat 24107b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten t_pri = getpriority(PRIO_PROCESS, t_pid); 24207b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten 24307b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten if (t_pri <= ANDROID_PRIORITY_AUDIO) { 24407b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten int scheduler = sched_getscheduler(t_pid); 24507b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten if ((scheduler == SCHED_FIFO) || (scheduler == SCHED_RR)) { 2469e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray // This task wants to stay in its current audio group so it can keep its budget 2479e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray // don't update its cpuset or cgroup 24807b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten continue; 24907b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten } 25007b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten } 2517e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat 25207b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten if (isDefault) { 253f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten if (t_pri >= ANDROID_PRIORITY_BACKGROUND) { 254f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten // This task wants to stay at background 2559e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray // update its cpuset so it doesn't only run on bg core(s) 2569e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray#ifdef ENABLE_CPUSETS 2579e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray int err = set_cpuset_policy(t_pid, sp); 2589e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray if (err != NO_ERROR) { 2594c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForGroupError(env, -err, t_pid); 2609e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray break; 2619e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray } 2629e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray#endif 263f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten continue; 264f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten } 2657e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat } 2669e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray int err; 2679e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray#ifdef ENABLE_CPUSETS 2689e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray // set both cpuset and cgroup for general threads 2699e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray err = set_cpuset_policy(t_pid, sp); 2709e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray if (err != NO_ERROR) { 2714c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForGroupError(env, -err, t_pid); 2729e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray break; 2739e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray } 2749e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray#endif 27569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 2769e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray err = set_sched_policy(t_pid, sp); 277f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten if (err != NO_ERROR) { 2784c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForGroupError(env, -err, t_pid); 2790a42b811aea490a9a605b75f0320101f6eafd283San Mehat break; 280242d65bf9faf1d2bc3468490e510551140e23462San Mehat } 2819e41c7479ccaedb89a89a58079570ca0ee0e3727Tim Murray 2823e458241d9930465a20a861ecb42744355d48e48San Mehat } 2833e458241d9930465a20a861ecb42744355d48e48San Mehat closedir(d); 2843e458241d9930465a20a861ecb42744355d48e48San Mehat} 2853e458241d9930465a20a861ecb42744355d48e48San Mehat 2869e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkeyjint android_os_Process_getProcessGroup(JNIEnv* env, jobject clazz, jint pid) 2879e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey{ 2889e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey SchedPolicy sp; 2899e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey if (get_sched_policy(pid, &sp) != 0) { 2904c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForGroupError(env, errno, pid); 2919e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey } 2929e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey return (int) sp; 2939e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey} 2949e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey 295cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen#ifdef ENABLE_CPUSETS 296cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen/** Sample CPUset list format: 297cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * 0-3,4,6-8 298cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen */ 299cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenenstatic void parse_cpuset_cpus(char *cpus, cpu_set_t *cpu_set) { 300cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen unsigned int start, end, matched, i; 301cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen char *cpu_range = strtok(cpus, ","); 302cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen while (cpu_range != NULL) { 303cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen start = end = 0; 304cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen matched = sscanf(cpu_range, "%u-%u", &start, &end); 305cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen cpu_range = strtok(NULL, ","); 306cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen if (start >= CPU_SETSIZE) { 307cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen ALOGE("parse_cpuset_cpus: ignoring CPU number larger than %d.", CPU_SETSIZE); 308cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen continue; 309cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } else if (end >= CPU_SETSIZE) { 310cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen ALOGE("parse_cpuset_cpus: ignoring CPU numbers larger than %d.", CPU_SETSIZE); 311cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen end = CPU_SETSIZE - 1; 312cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } 313cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen if (matched == 1) { 314cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen CPU_SET(start, cpu_set); 315cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } else if (matched == 2) { 316cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen for (i = start; i <= end; i++) { 317cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen CPU_SET(i, cpu_set); 318cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } 319cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } else { 320cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen ALOGE("Failed to match cpus"); 321cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } 322cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } 323cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen return; 324cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen} 325cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen 326cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen/** 327cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * Stores the CPUs assigned to the cpuset corresponding to the 328cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * SchedPolicy in the passed in cpu_set. 329cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen */ 330cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenenstatic void get_cpuset_cores_for_policy(SchedPolicy policy, cpu_set_t *cpu_set) 331cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen{ 332cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen FILE *file; 333cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen const char *filename; 334cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen 335cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen CPU_ZERO(cpu_set); 336cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen 337cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen switch (policy) { 338cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen case SP_BACKGROUND: 339cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen filename = "/dev/cpuset/background/cpus"; 340cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen break; 341cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen case SP_FOREGROUND: 342cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen case SP_AUDIO_APP: 343cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen case SP_AUDIO_SYS: 344cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen filename = "/dev/cpuset/foreground/cpus"; 345cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen break; 346cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen case SP_TOP_APP: 347cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen filename = "/dev/cpuset/top-app/cpus"; 348cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen break; 349cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen default: 350cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen filename = NULL; 351cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } 352cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen 353cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen if (!filename) return; 354cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen 355cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen file = fopen(filename, "re"); 356cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen if (file != NULL) { 357cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen // Parse cpus string 358cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen char *line = NULL; 359cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen size_t len = 0; 360cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen ssize_t num_read = getline(&line, &len, file); 361cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen fclose (file); 362cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen if (num_read > 0) { 363cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen parse_cpuset_cpus(line, cpu_set); 364cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } else { 365cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen ALOGE("Failed to read %s", filename); 366cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } 367cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen free(line); 368cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } 369cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen return; 370cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen} 371cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen#endif 372cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen 373cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen 374cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen/** 375cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * Determine CPU cores exclusively assigned to the 376cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * cpuset corresponding to the SchedPolicy and store 377cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen * them in the passed in cpu_set_t 378cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen */ 379cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenenvoid get_exclusive_cpuset_cores(SchedPolicy policy, cpu_set_t *cpu_set) { 380cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen#ifdef ENABLE_CPUSETS 381cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen int i; 382cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen cpu_set_t tmp_set; 383cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen get_cpuset_cores_for_policy(policy, cpu_set); 384cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen for (i = 0; i < SP_CNT; i++) { 385cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen if ((SchedPolicy) i == policy) continue; 386cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen get_cpuset_cores_for_policy((SchedPolicy)i, &tmp_set); 387cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen // First get cores exclusive to one set or the other 388cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen CPU_XOR(&tmp_set, cpu_set, &tmp_set); 389cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen // Then get the ones only in cpu_set 390cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen CPU_AND(cpu_set, cpu_set, &tmp_set); 391cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } 392cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen#else 393cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen (void) policy; 394cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen CPU_ZERO(cpu_set); 395cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen#endif 396cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen return; 397cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen} 398cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen 399cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn CoenenjintArray android_os_Process_getExclusiveCores(JNIEnv* env, jobject clazz) { 400cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen SchedPolicy sp; 401cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen cpu_set_t cpu_set; 402cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen jintArray cpus; 403cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen int pid = getpid(); 404cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen if (get_sched_policy(pid, &sp) != 0) { 4054c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForGroupError(env, errno, pid); 406cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen return NULL; 407cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } 408cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen get_exclusive_cpuset_cores(sp, &cpu_set); 409cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen int num_cpus = CPU_COUNT(&cpu_set); 410cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen cpus = env->NewIntArray(num_cpus); 411cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen if (cpus == NULL) { 412cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen jniThrowException(env, "java/lang/OutOfMemoryError", NULL); 413cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen return NULL; 414cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } 415cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen 416cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen jint* cpu_elements = env->GetIntArrayElements(cpus, 0); 417cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen int count = 0; 418cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen for (int i = 0; i < CPU_SETSIZE && count < num_cpus; i++) { 419cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen if (CPU_ISSET(i, &cpu_set)) { 420cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen cpu_elements[count++] = i; 421cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } 422cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen } 423cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen 424cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen env->ReleaseIntArrayElements(cpus, cpu_elements, 0); 425cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen return cpus; 426cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen} 427cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen 428160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tatestatic void android_os_Process_setCanSelfBackground(JNIEnv* env, jobject clazz, jboolean bgOk) { 429160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate // Establishes the calling thread as illegal to put into the background. 430160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate // Typically used only for the system process's main looper. 431160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#if GUARD_THREAD_PRIORITY 43206451fe081d5ae79121a6f301475c7042f7f3a5dElliott Hughes ALOGV("Process.setCanSelfBackground(%d) : tid=%d", bgOk, gettid()); 433160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate { 434160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate Mutex::Autolock _l(gKeyCreateMutex); 435160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate if (gBgKey == -1) { 436160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate pthread_key_create(&gBgKey, NULL); 437160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate } 438160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate } 439160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate 440160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate // inverted: not-okay, we set a sentinel value 441160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate pthread_setspecific(gBgKey, (void*)(bgOk ? 0 : 0xbaad)); 442160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#endif 443160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate} 444160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate 4451b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharanjint android_os_Process_getThreadScheduler(JNIEnv* env, jclass clazz, 4461b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan jint tid) 4471b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan{ 4481b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan int policy = 0; 4491b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan// linux has sched_getscheduler(), others don't. 4501b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan#if defined(__linux__) 4511b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan errno = 0; 4521b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan policy = sched_getscheduler(tid); 4531b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan if (errno != 0) { 4544c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForPriorityError(env, errno, tid); 4551b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan } 4561b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan#else 4574c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForPriorityError(env, ENOSYS, tid); 4581b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan#endif 4591b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan return policy; 4601b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan} 4611b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan 4626793ac943afeb16642f477c43ddfd27e498db37bGlenn Kastenvoid android_os_Process_setThreadScheduler(JNIEnv* env, jclass clazz, 4636793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten jint tid, jint policy, jint pri) 4646793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten{ 46565b4a68669227a57696e0e7ed1e4ef8da2705d9eYabin Cui// linux has sched_setscheduler(), others don't. 46665b4a68669227a57696e0e7ed1e4ef8da2705d9eYabin Cui#if defined(__linux__) 4676793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten struct sched_param param; 4686793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten param.sched_priority = pri; 4696793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten int rc = sched_setscheduler(tid, policy, ¶m); 4706793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten if (rc) { 4714c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForPriorityError(env, errno, tid); 4726793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten } 473cc767191cfb675f744e0165608b0a4196aba2b37Glenn Kasten#else 4744c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForPriorityError(env, ENOSYS, tid); 475cc767191cfb675f744e0165608b0a4196aba2b37Glenn Kasten#endif 4766793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten} 4776793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid android_os_Process_setThreadPriority(JNIEnv* env, jobject clazz, 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint pid, jint pri) 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 481160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#if GUARD_THREAD_PRIORITY 482160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate // if we're putting the current thread into the background, check the TLS 483160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate // to make sure this thread isn't guarded. If it is, raise an exception. 484160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate if (pri >= ANDROID_PRIORITY_BACKGROUND) { 48506451fe081d5ae79121a6f301475c7042f7f3a5dElliott Hughes if (pid == gettid()) { 486160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate void* bgOk = pthread_getspecific(gBgKey); 487160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate if (bgOk == ((void*)0xbaad)) { 4883762c311729fe9f3af085c14c5c1fb471d994c03Steve Block ALOGE("Thread marked fg-only put self in background!"); 489160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate jniThrowException(env, "java/lang/SecurityException", "May not put this thread into background"); 490160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate return; 491160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate } 492160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate } 493160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate } 494160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#endif 495160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate 496887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn int rc = androidSetThreadPriority(pid, pri); 497887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn if (rc != 0) { 498887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn if (rc == INVALID_OPERATION) { 4994c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForPriorityError(env, errno, pid); 500887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn } else { 5014c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForGroupError(env, errno, pid); 502887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn } 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 505c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn //ALOGI("Setting priority of %" PRId32 ": %" PRId32 ", getpriority returns %d\n", 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // pid, pri, getpriority(PRIO_PROCESS, pid)); 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid android_os_Process_setCallingThreadPriority(JNIEnv* env, jobject clazz, 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint pri) 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 51206451fe081d5ae79121a6f301475c7042f7f3a5dElliott Hughes android_os_Process_setThreadPriority(env, clazz, gettid(), pri); 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjint android_os_Process_getThreadPriority(JNIEnv* env, jobject clazz, 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint pid) 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project errno = 0; 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint pri = getpriority(PRIO_PROCESS, pid); 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (errno != 0) { 5214c0c4df7cfa0b4228ef547aa940674393cb2ab77Ruben Brunk signalExceptionForPriorityError(env, errno, pid); 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 523c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn //ALOGI("Returning priority of %" PRId32 ": %" PRId32 "\n", pid, pri); 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return pri; 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5275534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchandjboolean android_os_Process_setSwappiness(JNIEnv *env, jobject clazz, 5285534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand jint pid, jboolean is_increased) 5295534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand{ 5305534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand char text[64]; 5315534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand 5325534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand if (is_increased) { 5335534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand strcpy(text, "/sys/fs/cgroup/memory/sw/tasks"); 5345534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand } else { 5355534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand strcpy(text, "/sys/fs/cgroup/memory/tasks"); 5365534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand } 5375534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand 5385534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand struct stat st; 5395534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand if (stat(text, &st) || !S_ISREG(st.st_mode)) { 5405534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand return false; 5415534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand } 5425534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand 5435534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand int fd = open(text, O_WRONLY); 5445534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand if (fd >= 0) { 545c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn sprintf(text, "%" PRId32, pid); 5465534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand write(fd, text, strlen(text)); 5475534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand close(fd); 5485534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand } 5495534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand 5505534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand return true; 5515534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand} 5525534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid android_os_Process_setArgV0(JNIEnv* env, jobject clazz, jstring name) 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (name == NULL) { 55669a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jchar* str = env->GetStringCritical(name, 0); 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String8 name8; 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (str) { 5636698749dd4d4d6513b26aa9071af290b956b68a7Dan Albert name8 = String8(reinterpret_cast<const char16_t*>(str), 5646698749dd4d4d6513b26aa9071af290b956b68a7Dan Albert env->GetStringLength(name)); 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringCritical(name, str); 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (name8.size() > 0) { 569a23fcd7be8e40078a913b1a99222cdd89229e67bNarayan Kamath const char* procName = name8.string(); 570a23fcd7be8e40078a913b1a99222cdd89229e67bNarayan Kamath set_process_name(procName); 571a23fcd7be8e40078a913b1a99222cdd89229e67bNarayan Kamath AndroidRuntime::getRuntime()->setArgv0(procName); 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjint android_os_Process_setUid(JNIEnv* env, jobject clazz, jint uid) 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return setuid(uid) == 0 ? 0 : errno; 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjint android_os_Process_setGid(JNIEnv* env, jobject clazz, jint uid) 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return setgid(uid) == 0 ? 0 : errno; 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic int pid_compare(const void* v1, const void* v2) 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 587c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn //ALOGI("Compare %" PRId32 " vs %" PRId32 "\n", *((const jint*)v1), *((const jint*)v2)); 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return *((const jint*)v1) - *((const jint*)v2); 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 591c367d48c55e5a3fa0df14fd62889e4bb6b63cb01Elliott Hughesstatic jlong getFreeMemoryImpl(const char* const sums[], const size_t sumsLen[], size_t num) 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int fd = open("/proc/meminfo", O_RDONLY); 59469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fd < 0) { 5968564c8da817a845353d213acd8636b76f567b234Steve Block ALOGW("Unable to open /proc/meminfo"); 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char buffer[256]; 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const int len = read(fd, buffer, sizeof(buffer)-1); 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project close(fd); 60369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (len < 0) { 6058564c8da817a845353d213acd8636b76f567b234Steve Block ALOGW("Unable to read /proc/meminfo"); 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer[len] = 0; 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 610c367d48c55e5a3fa0df14fd62889e4bb6b63cb01Elliott Hughes size_t numFound = 0; 6110bca96bcbfe559f9330a01f723c5c9cba51ec05aMarco Nelissen jlong mem = 0; 61269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* p = buffer; 61459325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn while (*p && numFound < num) { 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i = 0; 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (sums[i]) { 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (strncmp(p, sums[i], sumsLen[i]) == 0) { 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p += sumsLen[i]; 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (*p == ' ') p++; 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* num = p; 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (*p >= '0' && *p <= '9') p++; 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*p != 0) { 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *p = 0; 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p++; 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*p == 0) p--; 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6270bca96bcbfe559f9330a01f723c5c9cba51ec05aMarco Nelissen mem += atoll(num) * 1024; 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project numFound++; 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p++; 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return numFound > 0 ? mem : -1; 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63959325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackbornstatic jlong android_os_Process_getFreeMemory(JNIEnv* env, jobject clazz) 64059325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn{ 64159325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn static const char* const sums[] = { "MemFree:", "Cached:", NULL }; 642c367d48c55e5a3fa0df14fd62889e4bb6b63cb01Elliott Hughes static const size_t sumsLen[] = { strlen("MemFree:"), strlen("Cached:"), 0 }; 64359325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn return getFreeMemoryImpl(sums, sumsLen, 2); 64459325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn} 64559325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn 64659325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackbornstatic jlong android_os_Process_getTotalMemory(JNIEnv* env, jobject clazz) 64759325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn{ 64859325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn static const char* const sums[] = { "MemTotal:", NULL }; 649c367d48c55e5a3fa0df14fd62889e4bb6b63cb01Elliott Hughes static const size_t sumsLen[] = { strlen("MemTotal:"), 0 }; 65059325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn return getFreeMemoryImpl(sums, sumsLen, 1); 65159325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn} 65259325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid android_os_Process_readProcLines(JNIEnv* env, jobject clazz, jstring fileStr, 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jobjectArray reqFields, jlongArray outFields) 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 6566215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("getMemInfo: %p %p", reqFields, outFields); 65769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fileStr == NULL || reqFields == NULL || outFields == NULL) { 65969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* file8 = env->GetStringUTFChars(fileStr, NULL); 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (file8 == NULL) { 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String8 file(file8); 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(fileStr, file8); 66969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jsize count = env->GetArrayLength(reqFields); 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > env->GetArrayLength(outFields)) { 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/IllegalArgumentException", "Array lengths differ"); 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Vector<String8> fields; 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i; 67869a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i=0; i<count; i++) { 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jobject obj = env->GetObjectArrayElement(reqFields, i); 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (obj != NULL) { 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* str8 = env->GetStringUTFChars((jstring)obj, NULL); 6836215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("String at %d: %p = %s", i, obj, str8); 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (str8 == NULL) { 68569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, "Element in reqFields"); 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fields.add(String8(str8)); 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars((jstring)obj, str8); 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 69169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, "Element in reqFields"); 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 69569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jlong* sizesArray = env->GetLongArrayElements(outFields, 0); 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sizesArray == NULL) { 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 70069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 701c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn //ALOGI("Clearing %" PRId32 " sizes", count); 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i=0; i<count; i++) { 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sizesArray[i] = 0; 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 70569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int fd = open(file.string(), O_RDONLY); 70769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fd >= 0) { 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const size_t BUFFER_SIZE = 2048; 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* buffer = (char*)malloc(BUFFER_SIZE); 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int len = read(fd, buffer, BUFFER_SIZE-1); 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project close(fd); 71369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (len < 0) { 7158564c8da817a845353d213acd8636b76f567b234Steve Block ALOGW("Unable to read %s", file.string()); 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project len = 0; 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer[len] = 0; 71969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int foundCount = 0; 72169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* p = buffer; 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (*p && foundCount < count) { 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bool skipToEol = true; 7256215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("Parsing at: %s", p); 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i=0; i<count; i++) { 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const String8& field = fields[i]; 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (strncmp(p, field.string(), field.length()) == 0) { 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p += field.length(); 730add868cebaf62cffe96e79764ea0b7f2320a03ebAmith Yamasani while (*p == ' ' || *p == '\t') p++; 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* num = p; 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (*p >= '0' && *p <= '9') p++; 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project skipToEol = *p != '\n'; 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*p != 0) { 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *p = 0; 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p++; 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* end; 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sizesArray[i] = strtoll(num, &end, 10); 740c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn //ALOGI("Field %s = %" PRId64, field.string(), sizesArray[i]); 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project foundCount++; 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (skipToEol) { 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (*p && *p != '\n') { 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p++; 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*p == '\n') { 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p++; 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 75469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project free(buffer); 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7578564c8da817a845353d213acd8636b76f567b234Steve Block ALOGW("Unable to open %s", file.string()); 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 75969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7606215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("Done!"); 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseLongArrayElements(outFields, sizesArray, 0); 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectjintArray android_os_Process_getPids(JNIEnv* env, jobject clazz, 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jstring file, jintArray lastArray) 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (file == NULL) { 76869a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NULL; 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 77169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* file8 = env->GetStringUTFChars(file, NULL); 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (file8 == NULL) { 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/OutOfMemoryError", NULL); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NULL; 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 77769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project DIR* dirp = opendir(file8); 77969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(file, file8); 78169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if(dirp == NULL) { 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NULL; 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 78569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jsize curCount = 0; 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint* curData = NULL; 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lastArray != NULL) { 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curCount = env->GetArrayLength(lastArray); 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curData = env->GetIntArrayElements(lastArray, 0); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 79269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint curPos = 0; 79469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project struct dirent* entry; 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while ((entry=readdir(dirp)) != NULL) { 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* p = entry->d_name; 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (*p) { 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*p < '0' || *p > '9') break; 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p++; 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*p != 0) continue; 80369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* end; 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int pid = strtol(entry->d_name, &end, 10); 8066215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("File %s pid=%d\n", entry->d_name, pid); 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (curPos >= curCount) { 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jsize newCount = (curCount == 0) ? 10 : (curCount*2); 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jintArray newArray = env->NewIntArray(newCount); 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newArray == NULL) { 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project closedir(dirp); 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/OutOfMemoryError", NULL); 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NULL; 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint* newData = env->GetIntArrayElements(newArray, 0); 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (curData != NULL) { 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project memcpy(newData, curData, sizeof(jint)*curCount); 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseIntArrayElements(lastArray, curData, 0); 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lastArray = newArray; 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curCount = newCount; 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curData = newData; 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 82469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curData[curPos] = pid; 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curPos++; 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 82869a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project closedir(dirp); 83069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (curData != NULL && curPos > 0) { 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project qsort(curData, curPos, sizeof(jint), pid_compare); 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 83469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (curPos < curCount) { 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curData[curPos] = -1; 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curPos++; 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 83969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (curData != NULL) { 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseIntArrayElements(lastArray, curData, 0); 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 84369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return lastArray; 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectenum { 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_TERM_MASK = 0xff, 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_ZERO_TERM = 0, 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_SPACE_TERM = ' ', 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_COMBINE = 0x100, 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_PARENS = 0x200, 85313ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn PROC_QUOTES = 0x400, 8544de5a3ac6655f76b67af38712ae5aeb6d7c15938Dianne Hackborn PROC_CHAR = 0x800, 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_OUT_STRING = 0x1000, 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_OUT_LONG = 0x2000, 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_OUT_FLOAT = 0x4000, 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 860c64edde69d18498fb2954f71a546357b07ab996aEvan Millarjboolean android_os_Process_parseProcLineArray(JNIEnv* env, jobject clazz, 86169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes char* buffer, jint startIndex, jint endIndex, jintArray format, 862c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jobjectArray outStrings, jlongArray outLongs, jfloatArray outFloats) 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 86469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jsize NF = env->GetArrayLength(format); 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jsize NS = outStrings ? env->GetArrayLength(outStrings) : 0; 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jsize NL = outLongs ? env->GetArrayLength(outLongs) : 0; 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jsize NR = outFloats ? env->GetArrayLength(outFloats) : 0; 86969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint* formatData = env->GetIntArrayElements(format, 0); 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jlong* longsData = outLongs ? 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->GetLongArrayElements(outLongs, 0) : NULL; 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfloat* floatsData = outFloats ? 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->GetFloatArrayElements(outFloats, 0) : NULL; 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (formatData == NULL || (NL > 0 && longsData == NULL) 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (NR > 0 && floatsData == NULL)) { 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (formatData != NULL) { 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseIntArrayElements(format, formatData, 0); 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longsData != NULL) { 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseLongArrayElements(outLongs, longsData, 0); 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (floatsData != NULL) { 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseFloatArrayElements(outFloats, floatsData, 0); 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/OutOfMemoryError", NULL); 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return JNI_FALSE; 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 890c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jsize i = startIndex; 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jsize di = 0; 89269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jboolean res = JNI_TRUE; 89469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (jsize fi=0; fi<NF; fi++) { 89613ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn jint mode = formatData[fi]; 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&PROC_PARENS) != 0) { 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 8993b1e22e2898e27fe486ac4137692e0f20166e13eBernhard Rosenkränzer } else if ((mode&PROC_QUOTES) != 0) { 90013ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn if (buffer[i] == '"') { 90113ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn i++; 90213ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn } else { 90313ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn mode &= ~PROC_QUOTES; 90413ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn } 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char term = (char)(mode&PROC_TERM_MASK); 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jsize start = i; 908c64edde69d18498fb2954f71a546357b07ab996aEvan Millar if (i >= endIndex) { 9090f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe if (kDebugProc) { 9100f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe ALOGW("Ran off end of data @%d", i); 9110f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe } 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project res = JNI_FALSE; 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 91569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jsize end = -1; 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&PROC_PARENS) != 0) { 918c367d48c55e5a3fa0df14fd62889e4bb6b63cb01Elliott Hughes while (i < endIndex && buffer[i] != ')') { 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project end = i; 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 92313ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn } else if ((mode&PROC_QUOTES) != 0) { 92413ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn while (buffer[i] != '"' && i < endIndex) { 92513ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn i++; 92613ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn } 92713ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn end = i; 92813ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn i++; 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 930c367d48c55e5a3fa0df14fd62889e4bb6b63cb01Elliott Hughes while (i < endIndex && buffer[i] != term) { 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (end < 0) { 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project end = i; 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 93669a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 937c64edde69d18498fb2954f71a546357b07ab996aEvan Millar if (i < endIndex) { 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&PROC_COMBINE) != 0) { 940c367d48c55e5a3fa0df14fd62889e4bb6b63cb01Elliott Hughes while (i < endIndex && buffer[i] == term) { 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 94569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 946c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn //ALOGI("Field %" PRId32 ": %" PRId32 "-%" PRId32 " dest=%" PRId32 " mode=0x%" PRIx32 "\n", i, start, end, di, mode); 94769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&(PROC_OUT_FLOAT|PROC_OUT_LONG|PROC_OUT_STRING)) != 0) { 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char c = buffer[end]; 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer[end] = 0; 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&PROC_OUT_FLOAT) != 0 && di < NR) { 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* end; 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project floatsData[di] = strtof(buffer+start, &end); 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&PROC_OUT_LONG) != 0 && di < NL) { 9564de5a3ac6655f76b67af38712ae5aeb6d7c15938Dianne Hackborn if ((mode&PROC_CHAR) != 0) { 9574de5a3ac6655f76b67af38712ae5aeb6d7c15938Dianne Hackborn // Caller wants single first character returned as one long. 9584de5a3ac6655f76b67af38712ae5aeb6d7c15938Dianne Hackborn longsData[di] = buffer[start]; 9594de5a3ac6655f76b67af38712ae5aeb6d7c15938Dianne Hackborn } else { 9604de5a3ac6655f76b67af38712ae5aeb6d7c15938Dianne Hackborn char* end; 9614de5a3ac6655f76b67af38712ae5aeb6d7c15938Dianne Hackborn longsData[di] = strtoll(buffer+start, &end, 10); 9624de5a3ac6655f76b67af38712ae5aeb6d7c15938Dianne Hackborn } 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&PROC_OUT_STRING) != 0 && di < NS) { 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jstring str = env->NewStringUTF(buffer+start); 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetObjectArrayElement(outStrings, di, str); 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer[end] = c; 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project di++; 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 97269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseIntArrayElements(format, formatData, 0); 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longsData != NULL) { 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseLongArrayElements(outLongs, longsData, 0); 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (floatsData != NULL) { 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseFloatArrayElements(outFloats, floatsData, 0); 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 98069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return res; 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 984c64edde69d18498fb2954f71a546357b07ab996aEvan Millarjboolean android_os_Process_parseProcLine(JNIEnv* env, jobject clazz, 98569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jbyteArray buffer, jint startIndex, jint endIndex, jintArray format, 986c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jobjectArray outStrings, jlongArray outLongs, jfloatArray outFloats) 987c64edde69d18498fb2954f71a546357b07ab996aEvan Millar{ 988c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jbyte* bufferArray = env->GetByteArrayElements(buffer, NULL); 989c64edde69d18498fb2954f71a546357b07ab996aEvan Millar 99069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jboolean result = android_os_Process_parseProcLineArray(env, clazz, 99169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes (char*) bufferArray, startIndex, endIndex, format, outStrings, 992c64edde69d18498fb2954f71a546357b07ab996aEvan Millar outLongs, outFloats); 99369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 994c64edde69d18498fb2954f71a546357b07ab996aEvan Millar env->ReleaseByteArrayElements(buffer, bufferArray, 0); 99569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 996c64edde69d18498fb2954f71a546357b07ab996aEvan Millar return result; 997c64edde69d18498fb2954f71a546357b07ab996aEvan Millar} 998c64edde69d18498fb2954f71a546357b07ab996aEvan Millar 999c64edde69d18498fb2954f71a546357b07ab996aEvan Millarjboolean android_os_Process_readProcFile(JNIEnv* env, jobject clazz, 1000c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jstring file, jintArray format, jobjectArray outStrings, 1001c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jlongArray outLongs, jfloatArray outFloats) 1002c64edde69d18498fb2954f71a546357b07ab996aEvan Millar{ 1003c64edde69d18498fb2954f71a546357b07ab996aEvan Millar if (file == NULL || format == NULL) { 100469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 1005c64edde69d18498fb2954f71a546357b07ab996aEvan Millar return JNI_FALSE; 1006c64edde69d18498fb2954f71a546357b07ab996aEvan Millar } 1007c64edde69d18498fb2954f71a546357b07ab996aEvan Millar 1008c64edde69d18498fb2954f71a546357b07ab996aEvan Millar const char* file8 = env->GetStringUTFChars(file, NULL); 1009c64edde69d18498fb2954f71a546357b07ab996aEvan Millar if (file8 == NULL) { 1010c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jniThrowException(env, "java/lang/OutOfMemoryError", NULL); 1011c64edde69d18498fb2954f71a546357b07ab996aEvan Millar return JNI_FALSE; 1012c64edde69d18498fb2954f71a546357b07ab996aEvan Millar } 1013c64edde69d18498fb2954f71a546357b07ab996aEvan Millar int fd = open(file8, O_RDONLY); 101469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 1015c64edde69d18498fb2954f71a546357b07ab996aEvan Millar if (fd < 0) { 10160f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe if (kDebugProc) { 10170f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe ALOGW("Unable to open process file: %s\n", file8); 10180f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe } 1019306af678a5f1938629e1182b46cc43f2da6e7774Dianne Hackborn env->ReleaseStringUTFChars(file, file8); 1020c64edde69d18498fb2954f71a546357b07ab996aEvan Millar return JNI_FALSE; 1021c64edde69d18498fb2954f71a546357b07ab996aEvan Millar } 1022306af678a5f1938629e1182b46cc43f2da6e7774Dianne Hackborn env->ReleaseStringUTFChars(file, file8); 102369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 1024c64edde69d18498fb2954f71a546357b07ab996aEvan Millar char buffer[256]; 1025c64edde69d18498fb2954f71a546357b07ab996aEvan Millar const int len = read(fd, buffer, sizeof(buffer)-1); 1026c64edde69d18498fb2954f71a546357b07ab996aEvan Millar close(fd); 102769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 1028c64edde69d18498fb2954f71a546357b07ab996aEvan Millar if (len < 0) { 10290f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe if (kDebugProc) { 10300f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe ALOGW("Unable to open process file: %s fd=%d\n", file8, fd); 10310f0b4919667f418b249c497f5ad3e83fdf4437e5Andreas Gampe } 1032c64edde69d18498fb2954f71a546357b07ab996aEvan Millar return JNI_FALSE; 1033c64edde69d18498fb2954f71a546357b07ab996aEvan Millar } 1034c64edde69d18498fb2954f71a546357b07ab996aEvan Millar buffer[len] = 0; 103569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 103669a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes return android_os_Process_parseProcLineArray(env, clazz, buffer, 0, len, 1037c64edde69d18498fb2954f71a546357b07ab996aEvan Millar format, outStrings, outLongs, outFloats); 103869a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 1039c64edde69d18498fb2954f71a546357b07ab996aEvan Millar} 1040c64edde69d18498fb2954f71a546357b07ab996aEvan Millar 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid android_os_Process_setApplicationObject(JNIEnv* env, jobject clazz, 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jobject binderObject) 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (binderObject == NULL) { 104569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<IBinder> binder = ibinderForJavaObject(env, binderObject); 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid android_os_Process_sendSignal(JNIEnv* env, jobject clazz, jint pid, jint sig) 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (pid > 0) { 1055c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn ALOGI("Sending signal. PID: %" PRId32 " SIG: %" PRId32, pid, sig); 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project kill(pid, sig); 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1060906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackbornvoid android_os_Process_sendSignalQuiet(JNIEnv* env, jobject clazz, jint pid, jint sig) 1061906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn{ 1062906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn if (pid > 0) { 1063906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn kill(pid, sig); 1064906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn } 1065906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn} 1066906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jlong android_os_Process_getElapsedCpuTime(JNIEnv* env, jobject clazz) 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project struct timespec ts; 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int res = clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts); 107269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (res != 0) { 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (jlong) 0; 107569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes } 107669a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nsecs_t when = seconds_to_nanoseconds(ts.tv_sec) + ts.tv_nsec; 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (jlong) nanoseconds_to_milliseconds(when); 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jlong android_os_Process_getPss(JNIEnv* env, jobject clazz, jint pid) 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char filename[64]; 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1085c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn snprintf(filename, sizeof(filename), "/proc/%" PRId32 "/smaps", pid); 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project FILE * file = fopen(filename, "r"); 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!file) { 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (jlong) -1; 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Tally up all of the Pss from the various maps 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char line[256]; 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jlong pss = 0; 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (fgets(line, sizeof(line), file)) { 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jlong v; 1097c6a410164e1fd728cf7873493baacca7bc29548dMark Salyzyn if (sscanf(line, "Pss: %" SCNd64 " kB", &v) == 1) { 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pss += v; 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fclose(file); 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Return the Pss value in bytes, not kilobytes 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return pss * 1024; 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1108f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne HackbornjintArray android_os_Process_getPidsForCommands(JNIEnv* env, jobject clazz, 1109f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jobjectArray commandNames) 1110f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn{ 1111f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (commandNames == NULL) { 1112f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jniThrowNullPointerException(env, NULL); 1113f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn return NULL; 1114f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1115f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1116f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn Vector<String8> commands; 1117f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1118f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jsize count = env->GetArrayLength(commandNames); 1119f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1120f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn for (int i=0; i<count; i++) { 1121f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jobject obj = env->GetObjectArrayElement(commandNames, i); 1122f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (obj != NULL) { 1123f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn const char* str8 = env->GetStringUTFChars((jstring)obj, NULL); 1124f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (str8 == NULL) { 1125f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jniThrowNullPointerException(env, "Element in commandNames"); 1126f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn return NULL; 1127f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1128f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn commands.add(String8(str8)); 1129f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn env->ReleaseStringUTFChars((jstring)obj, str8); 1130f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } else { 1131f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jniThrowNullPointerException(env, "Element in commandNames"); 1132f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn return NULL; 1133f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1134f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1135f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1136f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn Vector<jint> pids; 1137f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1138f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn DIR *proc = opendir("/proc"); 1139f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (proc == NULL) { 1140f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn fprintf(stderr, "/proc: %s\n", strerror(errno)); 1141f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn return NULL; 1142f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1143f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1144f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn struct dirent *d; 1145f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn while ((d = readdir(proc))) { 1146f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn int pid = atoi(d->d_name); 1147f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (pid <= 0) continue; 1148f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1149f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn char path[PATH_MAX]; 1150f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn char data[PATH_MAX]; 1151f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn snprintf(path, sizeof(path), "/proc/%d/cmdline", pid); 1152f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1153f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn int fd = open(path, O_RDONLY); 1154f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (fd < 0) { 1155f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn continue; 1156f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1157f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn const int len = read(fd, data, sizeof(data)-1); 1158f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn close(fd); 1159f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1160f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (len < 0) { 1161f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn continue; 1162f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1163f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn data[len] = 0; 1164f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1165f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn for (int i=0; i<len; i++) { 1166f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (data[i] == ' ') { 1167f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn data[i] = 0; 1168f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn break; 1169f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1170f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1171f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1172f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn for (size_t i=0; i<commands.size(); i++) { 1173f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (commands[i] == data) { 1174f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn pids.add(pid); 1175f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn break; 1176f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1177f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1178f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1179f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1180f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn closedir(proc); 1181f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1182f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jintArray pidArray = env->NewIntArray(pids.size()); 1183f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (pidArray == NULL) { 1184f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jniThrowException(env, "java/lang/OutOfMemoryError", NULL); 1185f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn return NULL; 1186f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1187f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1188f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (pids.size() > 0) { 1189f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn env->SetIntArrayRegion(pidArray, 0, pids.size(), pids.array()); 1190f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1191f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1192f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn return pidArray; 1193f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn} 1194f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 11950769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Crossjint android_os_Process_killProcessGroup(JNIEnv* env, jobject clazz, jint uid, jint pid) 11960769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross{ 11970769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross return killProcessGroup(uid, pid, SIGKILL); 11980769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross} 11990769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross 12000769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Crossvoid android_os_Process_removeAllProcessGroups(JNIEnv* env, jobject clazz) 12010769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross{ 12020769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross return removeAllProcessGroups(); 12030769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross} 12040769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic const JNINativeMethod methods[] = { 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getUidForName", "(Ljava/lang/String;)I", (void*)android_os_Process_getUidForName}, 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getGidForName", "(Ljava/lang/String;)I", (void*)android_os_Process_getGidForName}, 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setThreadPriority", "(II)V", (void*)android_os_Process_setThreadPriority}, 12096793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten {"setThreadScheduler", "(III)V", (void*)android_os_Process_setThreadScheduler}, 1210160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate {"setCanSelfBackground", "(Z)V", (void*)android_os_Process_setCanSelfBackground}, 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setThreadPriority", "(I)V", (void*)android_os_Process_setCallingThreadPriority}, 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getThreadPriority", "(I)I", (void*)android_os_Process_getThreadPriority}, 12131b15d13243d7e7f672713f21f0c46d88c3c067a2Srinath Sridharan {"getThreadScheduler", "(I)I", (void*)android_os_Process_getThreadScheduler}, 1214e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat {"setThreadGroup", "(II)V", (void*)android_os_Process_setThreadGroup}, 12159e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey {"setProcessGroup", "(II)V", (void*)android_os_Process_setProcessGroup}, 12169e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey {"getProcessGroup", "(I)I", (void*)android_os_Process_getProcessGroup}, 1217cd4bdf3eb91c1cc2757d32a86fc90745d0dff990Martijn Coenen {"getExclusiveCores", "()[I", (void*)android_os_Process_getExclusiveCores}, 12185534ba91ac0a0c9af822af62bcf92e2c5a8d6ec8Rom Lemarchand {"setSwappiness", "(IZ)Z", (void*)android_os_Process_setSwappiness}, 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setArgV0", "(Ljava/lang/String;)V", (void*)android_os_Process_setArgV0}, 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setUid", "(I)I", (void*)android_os_Process_setUid}, 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setGid", "(I)I", (void*)android_os_Process_setGid}, 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"sendSignal", "(II)V", (void*)android_os_Process_sendSignal}, 1223906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn {"sendSignalQuiet", "(II)V", (void*)android_os_Process_sendSignalQuiet}, 12240bca96bcbfe559f9330a01f723c5c9cba51ec05aMarco Nelissen {"getFreeMemory", "()J", (void*)android_os_Process_getFreeMemory}, 122559325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn {"getTotalMemory", "()J", (void*)android_os_Process_getTotalMemory}, 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"readProcLines", "(Ljava/lang/String;[Ljava/lang/String;[J)V", (void*)android_os_Process_readProcLines}, 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getPids", "(Ljava/lang/String;[I)[I", (void*)android_os_Process_getPids}, 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"readProcFile", "(Ljava/lang/String;[I[Ljava/lang/String;[J[F)Z", (void*)android_os_Process_readProcFile}, 1229c64edde69d18498fb2954f71a546357b07ab996aEvan Millar {"parseProcLine", "([BII[I[Ljava/lang/String;[J[F)Z", (void*)android_os_Process_parseProcLine}, 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getElapsedCpuTime", "()J", (void*)android_os_Process_getElapsedCpuTime}, 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getPss", "(I)J", (void*)android_os_Process_getPss}, 1232f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn {"getPidsForCommands", "([Ljava/lang/String;)[I", (void*)android_os_Process_getPidsForCommands}, 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //{"setApplicationObject", "(Landroid/os/IBinder;)V", (void*)android_os_Process_setApplicationObject}, 12340769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross {"killProcessGroup", "(II)I", (void*)android_os_Process_killProcessGroup}, 12350769e550011d8f8a19e333efe1706ef0e6cc6a5fColin Cross {"removeAllProcessGroups", "()V", (void*)android_os_Process_removeAllProcessGroups}, 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint register_android_os_Process(JNIEnv* env) 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1240ed6b9dff563c5e22f040ff37e12c0d771e0478aeAndreas Gampe return RegisterMethodsOrDie(env, "android/os/Process", methods, NELEM(methods)); 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1242