android_util_Process.cpp revision 13ac041b9f21043bc7c848a743be618bfd7a67e9
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 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/Log.h> 210795272aa226f4e965968a03daddc53ce30b7cdaMathias Agopian#include <binder/IPCThreadState.h> 220795272aa226f4e965968a03daddc53ce30b7cdaMathias Agopian#include <binder/ProcessState.h> 230795272aa226f4e965968a03daddc53ce30b7cdaMathias Agopian#include <binder/IServiceManager.h> 24f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten#include <cutils/sched_policy.h> 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/String8.h> 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/Vector.h> 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <android_runtime/AndroidRuntime.h> 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "android_util_Binder.h" 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "JNIHelp.h" 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <sys/errno.h> 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <sys/resource.h> 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <sys/types.h> 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <dirent.h> 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <fcntl.h> 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <grp.h> 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <pwd.h> 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <signal.h> 416af763bec7c3f4d50fee8dd0046409bb8a7fe8f6Glenn Kasten#include <unistd.h> 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43957e58670baad8c5995f1368e3b5280f0dbd891fSan Mehat#define POLICY_DEBUG 0 44160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#define GUARD_THREAD_PRIORITY 0 45a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectusing namespace android; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#if GUARD_THREAD_PRIORITY 49160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher TateMutex gKeyCreateMutex; 50160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tatestatic pthread_key_t gBgKey = -1; 51160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#endif 52160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate 53f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten// For both of these, err should be in the errno range (positive), not a status_t (negative) 54f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten 556793ac943afeb16642f477c43ddfd27e498db37bGlenn Kastenstatic void signalExceptionForPriorityError(JNIEnv* env, int err) 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (err) { 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case EINVAL: 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/IllegalArgumentException", NULL); 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case ESRCH: 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/IllegalArgumentException", "Given thread does not exist"); 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case EPERM: 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/SecurityException", "No permission to modify given thread"); 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case EACCES: 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/SecurityException", "No permission to set to given priority"); 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/RuntimeException", "Unknown error"); 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 766793ac943afeb16642f477c43ddfd27e498db37bGlenn Kastenstatic void signalExceptionForGroupError(JNIEnv* env, int err) 77e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat{ 78e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat switch (err) { 79e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat case EINVAL: 80e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat jniThrowException(env, "java/lang/IllegalArgumentException", NULL); 81e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat break; 82e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat case ESRCH: 83e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat jniThrowException(env, "java/lang/IllegalArgumentException", "Given thread does not exist"); 84e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat break; 85e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat case EPERM: 86e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat jniThrowException(env, "java/lang/SecurityException", "No permission to modify given thread"); 87e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat break; 88e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat case EACCES: 89e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat jniThrowException(env, "java/lang/SecurityException", "No permission to set to given group"); 90e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat break; 91e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat default: 92e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat jniThrowException(env, "java/lang/RuntimeException", "Unknown error"); 93e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat break; 94e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat } 95e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat} 96e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjint android_os_Process_myPid(JNIEnv* env, jobject clazz) 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getpid(); 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10280b12fcaaec458377d966803c3a61504f0897ea1Romain Guyjint android_os_Process_myPpid(JNIEnv* env, jobject clazz) 10380b12fcaaec458377d966803c3a61504f0897ea1Romain Guy{ 10480b12fcaaec458377d966803c3a61504f0897ea1Romain Guy return getppid(); 10580b12fcaaec458377d966803c3a61504f0897ea1Romain Guy} 10680b12fcaaec458377d966803c3a61504f0897ea1Romain Guy 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjint android_os_Process_myUid(JNIEnv* env, jobject clazz) 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getuid(); 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjint android_os_Process_myTid(JNIEnv* env, jobject clazz) 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 114887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn return androidGetTid(); 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjint android_os_Process_getUidForName(JNIEnv* env, jobject clazz, jstring name) 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (name == NULL) { 12069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jchar* str16 = env->GetStringCritical(name, 0); 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String8 name8; 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (str16) { 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project name8 = String8(str16, env->GetStringLength(name)); 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringCritical(name, str16); 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const size_t N = name8.size(); 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (N > 0) { 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* str = name8.string(); 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (size_t i=0; i<N; i++) { 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (str[i] < '0' || str[i] > '9') { 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project struct passwd* pwd = getpwnam(str); 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (pwd == NULL) { 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return pwd->pw_uid; 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return atoi(str); 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjint android_os_Process_getGidForName(JNIEnv* env, jobject clazz, jstring name) 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (name == NULL) { 15169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jchar* str16 = env->GetStringCritical(name, 0); 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String8 name8; 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (str16) { 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project name8 = String8(str16, env->GetStringLength(name)); 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringCritical(name, str16); 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const size_t N = name8.size(); 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (N > 0) { 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* str = name8.string(); 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (size_t i=0; i<N; i++) { 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (str[i] < '0' || str[i] > '9') { 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project struct group* grp = getgrnam(str); 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (grp == NULL) { 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return grp->gr_gid; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return atoi(str); 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kastenvoid android_os_Process_setThreadGroup(JNIEnv* env, jobject clazz, int tid, jint grp) 180e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat{ 181f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten ALOGV("%s tid=%d grp=%d", __func__, tid, grp); 182f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten SchedPolicy sp = (SchedPolicy) grp; 183f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten int res = set_sched_policy(tid, sp); 184887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn if (res != NO_ERROR) { 185f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten signalExceptionForGroupError(env, -res); 186e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat } 187e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat} 188e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat 18969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughesvoid android_os_Process_setProcessGroup(JNIEnv* env, jobject clazz, int pid, jint grp) 1903e458241d9930465a20a861ecb42744355d48e48San Mehat{ 191f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten ALOGV("%s pid=%d grp=%d", __func__, pid, grp); 1923e458241d9930465a20a861ecb42744355d48e48San Mehat DIR *d; 1933e458241d9930465a20a861ecb42744355d48e48San Mehat FILE *fp; 1943e458241d9930465a20a861ecb42744355d48e48San Mehat char proc_path[255]; 1953e458241d9930465a20a861ecb42744355d48e48San Mehat struct dirent *de; 1963e458241d9930465a20a861ecb42744355d48e48San Mehat 197f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten if ((grp == SP_FOREGROUND) || (grp > SP_MAX)) { 1986793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten signalExceptionForGroupError(env, EINVAL); 1993e458241d9930465a20a861ecb42744355d48e48San Mehat return; 2003e458241d9930465a20a861ecb42744355d48e48San Mehat } 2013e458241d9930465a20a861ecb42744355d48e48San Mehat 202f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten bool isDefault = false; 203f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten if (grp < 0) { 204f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten grp = SP_FOREGROUND; 205f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten isDefault = true; 206f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten } 207f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten SchedPolicy sp = (SchedPolicy) grp; 208f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten 209a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat#if POLICY_DEBUG 210a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat char cmdline[32]; 211a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat int fd; 212a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat 213a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat strcpy(cmdline, "unknown"); 214a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat 215a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat sprintf(proc_path, "/proc/%d/cmdline", pid); 216a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat fd = open(proc_path, O_RDONLY); 217a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat if (fd >= 0) { 218a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat int rc = read(fd, cmdline, sizeof(cmdline)-1); 219a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat cmdline[rc] = 0; 220a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat close(fd); 221a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat } 22269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 223f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten if (sp == SP_BACKGROUND) { 2245baa3a62a97544669fba6d65a11c07f252e654ddSteve Block ALOGD("setProcessGroup: vvv pid %d (%s)", pid, cmdline); 225a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat } else { 2265baa3a62a97544669fba6d65a11c07f252e654ddSteve Block ALOGD("setProcessGroup: ^^^ pid %d (%s)", pid, cmdline); 227a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat } 228a5109a878eeff22e32ee5ce1b1cd15e8daad5234San Mehat#endif 2293e458241d9930465a20a861ecb42744355d48e48San Mehat sprintf(proc_path, "/proc/%d/task", pid); 2303e458241d9930465a20a861ecb42744355d48e48San Mehat if (!(d = opendir(proc_path))) { 2311fd0ec738b0a2b97cc28701aa37b1a9869afc684San Mehat // If the process exited on us, don't generate an exception 2321fd0ec738b0a2b97cc28701aa37b1a9869afc684San Mehat if (errno != ENOENT) 2336793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten signalExceptionForGroupError(env, errno); 2343e458241d9930465a20a861ecb42744355d48e48San Mehat return; 2353e458241d9930465a20a861ecb42744355d48e48San Mehat } 2363e458241d9930465a20a861ecb42744355d48e48San Mehat 2373e458241d9930465a20a861ecb42744355d48e48San Mehat while ((de = readdir(d))) { 2387e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat int t_pid; 2397e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat int t_pri; 2407e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat 2413e458241d9930465a20a861ecb42744355d48e48San Mehat if (de->d_name[0] == '.') 2423e458241d9930465a20a861ecb42744355d48e48San Mehat continue; 2437e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat t_pid = atoi(de->d_name); 2447e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat 2457e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat if (!t_pid) { 2463762c311729fe9f3af085c14c5c1fb471d994c03Steve Block ALOGE("Error getting pid for '%s'\n", de->d_name); 2477e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat continue; 2487e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat } 2491fd0ec738b0a2b97cc28701aa37b1a9869afc684San Mehat 25007b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten t_pri = getpriority(PRIO_PROCESS, t_pid); 25107b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten 25207b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten if (t_pri <= ANDROID_PRIORITY_AUDIO) { 25307b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten int scheduler = sched_getscheduler(t_pid); 25407b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten if ((scheduler == SCHED_FIFO) || (scheduler == SCHED_RR)) { 25507b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten // This task wants to stay in it's current audio group so it can keep it's budget 25607b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten continue; 25707b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten } 25807b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten } 2597e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat 26007b0465095bd9ab3412caefa4fcacbdc3825c64bGlenn Kasten if (isDefault) { 261f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten if (t_pri >= ANDROID_PRIORITY_BACKGROUND) { 262f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten // This task wants to stay at background 263f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten continue; 264f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten } 2657e63789a0e0689d940609b1daceebc1bc08dcbefSan Mehat } 26669a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 267f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten int err = set_sched_policy(t_pid, sp); 268f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten if (err != NO_ERROR) { 269f1b56449f58963e4f0473d5e26961f68c31759f4Glenn Kasten signalExceptionForGroupError(env, -err); 2700a42b811aea490a9a605b75f0320101f6eafd283San Mehat break; 271242d65bf9faf1d2bc3468490e510551140e23462San Mehat } 2723e458241d9930465a20a861ecb42744355d48e48San Mehat } 2733e458241d9930465a20a861ecb42744355d48e48San Mehat closedir(d); 2743e458241d9930465a20a861ecb42744355d48e48San Mehat} 2753e458241d9930465a20a861ecb42744355d48e48San Mehat 2769e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkeyjint android_os_Process_getProcessGroup(JNIEnv* env, jobject clazz, jint pid) 2779e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey{ 2789e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey SchedPolicy sp; 2799e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey if (get_sched_policy(pid, &sp) != 0) { 2809e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey signalExceptionForGroupError(env, errno); 2819e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey } 2829e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey return (int) sp; 2839e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey} 2849e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey 285160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tatestatic void android_os_Process_setCanSelfBackground(JNIEnv* env, jobject clazz, jboolean bgOk) { 286160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate // Establishes the calling thread as illegal to put into the background. 287160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate // Typically used only for the system process's main looper. 288160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#if GUARD_THREAD_PRIORITY 28971f2cf116aab893e224056c38ab146bd1538dd3eSteve Block ALOGV("Process.setCanSelfBackground(%d) : tid=%d", bgOk, androidGetTid()); 290160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate { 291160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate Mutex::Autolock _l(gKeyCreateMutex); 292160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate if (gBgKey == -1) { 293160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate pthread_key_create(&gBgKey, NULL); 294160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate } 295160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate } 296160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate 297160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate // inverted: not-okay, we set a sentinel value 298160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate pthread_setspecific(gBgKey, (void*)(bgOk ? 0 : 0xbaad)); 299160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#endif 300160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate} 301160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate 3026793ac943afeb16642f477c43ddfd27e498db37bGlenn Kastenvoid android_os_Process_setThreadScheduler(JNIEnv* env, jclass clazz, 3036793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten jint tid, jint policy, jint pri) 3046793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten{ 305cc767191cfb675f744e0165608b0a4196aba2b37Glenn Kasten#ifdef HAVE_SCHED_SETSCHEDULER 3066793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten struct sched_param param; 3076793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten param.sched_priority = pri; 3086793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten int rc = sched_setscheduler(tid, policy, ¶m); 3096793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten if (rc) { 3106793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten signalExceptionForPriorityError(env, errno); 3116793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten } 312cc767191cfb675f744e0165608b0a4196aba2b37Glenn Kasten#else 313cc767191cfb675f744e0165608b0a4196aba2b37Glenn Kasten signalExceptionForPriorityError(env, ENOSYS); 314cc767191cfb675f744e0165608b0a4196aba2b37Glenn Kasten#endif 3156793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten} 3166793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid android_os_Process_setThreadPriority(JNIEnv* env, jobject clazz, 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint pid, jint pri) 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 320160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#if GUARD_THREAD_PRIORITY 321160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate // if we're putting the current thread into the background, check the TLS 322160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate // to make sure this thread isn't guarded. If it is, raise an exception. 323160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate if (pri >= ANDROID_PRIORITY_BACKGROUND) { 324160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate if (pid == androidGetTid()) { 325160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate void* bgOk = pthread_getspecific(gBgKey); 326160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate if (bgOk == ((void*)0xbaad)) { 3273762c311729fe9f3af085c14c5c1fb471d994c03Steve Block ALOGE("Thread marked fg-only put self in background!"); 328160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate jniThrowException(env, "java/lang/SecurityException", "May not put this thread into background"); 329160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate return; 330160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate } 331160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate } 332160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate } 333160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate#endif 334160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate 335887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn int rc = androidSetThreadPriority(pid, pri); 336887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn if (rc != 0) { 337887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn if (rc == INVALID_OPERATION) { 3386793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten signalExceptionForPriorityError(env, errno); 339887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn } else { 3406793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten signalExceptionForGroupError(env, errno); 341887f355f99ff83d568ef2885a4fdcaae475583dfDianne Hackborn } 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 3446215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("Setting priority of %d: %d, getpriority returns %d\n", 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // pid, pri, getpriority(PRIO_PROCESS, pid)); 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid android_os_Process_setCallingThreadPriority(JNIEnv* env, jobject clazz, 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint pri) 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint tid = android_os_Process_myTid(env, clazz); 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project android_os_Process_setThreadPriority(env, clazz, tid, pri); 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjint android_os_Process_getThreadPriority(JNIEnv* env, jobject clazz, 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint pid) 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project errno = 0; 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint pri = getpriority(PRIO_PROCESS, pid); 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (errno != 0) { 3616793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten signalExceptionForPriorityError(env, errno); 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3636215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("Returning priority of %d: %d\n", pid, pri); 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return pri; 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjboolean android_os_Process_setOomAdj(JNIEnv* env, jobject clazz, 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint pid, jint adj) 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#ifdef HAVE_OOM_ADJ 37110e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown char text[64]; 37210e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown sprintf(text, "/proc/%d/oom_adj", pid); 37310e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown int fd = open(text, O_WRONLY); 37410e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown if (fd >= 0) { 37510e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown sprintf(text, "%d", adj); 37610e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown write(fd, text, strlen(text)); 37710e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown close(fd); 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37910e89712863f5b91a2982dc1783fbdfe39c1485dJeff Brown return true; 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#endif 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid android_os_Process_setArgV0(JNIEnv* env, jobject clazz, jstring name) 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (name == NULL) { 38769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jchar* str = env->GetStringCritical(name, 0); 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String8 name8; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (str) { 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project name8 = String8(str, env->GetStringLength(name)); 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringCritical(name, str); 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (name8.size() > 0) { 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ProcessState::self()->setArgV0(name8.string()); 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjint android_os_Process_setUid(JNIEnv* env, jobject clazz, jint uid) 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return setuid(uid) == 0 ? 0 : errno; 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectjint android_os_Process_setGid(JNIEnv* env, jobject clazz, jint uid) 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return setgid(uid) == 0 ? 0 : errno; 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic int pid_compare(const void* v1, const void* v2) 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4156215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("Compare %d vs %d\n", *((const jint*)v1), *((const jint*)v2)); 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return *((const jint*)v1) - *((const jint*)v2); 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41959325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackbornstatic jlong getFreeMemoryImpl(const char* const sums[], const int sumsLen[], int num) 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int fd = open("/proc/meminfo", O_RDONLY); 42269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fd < 0) { 4248564c8da817a845353d213acd8636b76f567b234Steve Block ALOGW("Unable to open /proc/meminfo"); 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char buffer[256]; 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const int len = read(fd, buffer, sizeof(buffer)-1); 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project close(fd); 43169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (len < 0) { 4338564c8da817a845353d213acd8636b76f567b234Steve Block ALOGW("Unable to read /proc/meminfo"); 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return -1; 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer[len] = 0; 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int numFound = 0; 4390bca96bcbfe559f9330a01f723c5c9cba51ec05aMarco Nelissen jlong mem = 0; 44069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* p = buffer; 44259325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn while (*p && numFound < num) { 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i = 0; 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (sums[i]) { 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (strncmp(p, sums[i], sumsLen[i]) == 0) { 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p += sumsLen[i]; 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (*p == ' ') p++; 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* num = p; 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (*p >= '0' && *p <= '9') p++; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*p != 0) { 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *p = 0; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p++; 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*p == 0) p--; 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4550bca96bcbfe559f9330a01f723c5c9cba51ec05aMarco Nelissen mem += atoll(num) * 1024; 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project numFound++; 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p++; 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return numFound > 0 ? mem : -1; 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46759325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackbornstatic jlong android_os_Process_getFreeMemory(JNIEnv* env, jobject clazz) 46859325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn{ 46959325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn static const char* const sums[] = { "MemFree:", "Cached:", NULL }; 47059325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn static const int sumsLen[] = { strlen("MemFree:"), strlen("Cached:"), 0 }; 47159325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn return getFreeMemoryImpl(sums, sumsLen, 2); 47259325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn} 47359325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn 47459325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackbornstatic jlong android_os_Process_getTotalMemory(JNIEnv* env, jobject clazz) 47559325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn{ 47659325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn static const char* const sums[] = { "MemTotal:", NULL }; 47759325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn static const int sumsLen[] = { strlen("MemTotal:"), 0 }; 47859325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn return getFreeMemoryImpl(sums, sumsLen, 1); 47959325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn} 48059325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid android_os_Process_readProcLines(JNIEnv* env, jobject clazz, jstring fileStr, 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jobjectArray reqFields, jlongArray outFields) 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 4846215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("getMemInfo: %p %p", reqFields, outFields); 48569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fileStr == NULL || reqFields == NULL || outFields == NULL) { 48769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* file8 = env->GetStringUTFChars(fileStr, NULL); 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (file8 == NULL) { 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String8 file(file8); 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(fileStr, file8); 49769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jsize count = env->GetArrayLength(reqFields); 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > env->GetArrayLength(outFields)) { 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/IllegalArgumentException", "Array lengths differ"); 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Vector<String8> fields; 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int i; 50669a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i=0; i<count; i++) { 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jobject obj = env->GetObjectArrayElement(reqFields, i); 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (obj != NULL) { 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* str8 = env->GetStringUTFChars((jstring)obj, NULL); 5116215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("String at %d: %p = %s", i, obj, str8); 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (str8 == NULL) { 51369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, "Element in reqFields"); 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fields.add(String8(str8)); 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars((jstring)obj, str8); 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, "Element in reqFields"); 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jlong* sizesArray = env->GetLongArrayElements(outFields, 0); 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sizesArray == NULL) { 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52869a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 5296215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("Clearing %d sizes", count); 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i=0; i<count; i++) { 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sizesArray[i] = 0; 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int fd = open(file.string(), O_RDONLY); 53569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fd >= 0) { 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const size_t BUFFER_SIZE = 2048; 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* buffer = (char*)malloc(BUFFER_SIZE); 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int len = read(fd, buffer, BUFFER_SIZE-1); 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project close(fd); 54169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (len < 0) { 5438564c8da817a845353d213acd8636b76f567b234Steve Block ALOGW("Unable to read %s", file.string()); 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project len = 0; 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer[len] = 0; 54769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int foundCount = 0; 54969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* p = buffer; 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (*p && foundCount < count) { 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bool skipToEol = true; 5536215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("Parsing at: %s", p); 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (i=0; i<count; i++) { 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const String8& field = fields[i]; 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (strncmp(p, field.string(), field.length()) == 0) { 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p += field.length(); 558add868cebaf62cffe96e79764ea0b7f2320a03ebAmith Yamasani while (*p == ' ' || *p == '\t') p++; 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* num = p; 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (*p >= '0' && *p <= '9') p++; 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project skipToEol = *p != '\n'; 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*p != 0) { 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project *p = 0; 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p++; 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* end; 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sizesArray[i] = strtoll(num, &end, 10); 5686215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("Field %s = %d", field.string(), sizesArray[i]); 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project foundCount++; 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (skipToEol) { 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (*p && *p != '\n') { 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p++; 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*p == '\n') { 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p++; 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project free(buffer); 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5858564c8da817a845353d213acd8636b76f567b234Steve Block ALOGW("Unable to open %s", file.string()); 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 5886215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("Done!"); 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseLongArrayElements(outFields, sizesArray, 0); 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source ProjectjintArray android_os_Process_getPids(JNIEnv* env, jobject clazz, 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jstring file, jintArray lastArray) 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (file == NULL) { 59669a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NULL; 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* file8 = env->GetStringUTFChars(file, NULL); 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (file8 == NULL) { 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/OutOfMemoryError", NULL); 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NULL; 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60569a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project DIR* dirp = opendir(file8); 60769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseStringUTFChars(file, file8); 60969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if(dirp == NULL) { 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NULL; 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jsize curCount = 0; 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint* curData = NULL; 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lastArray != NULL) { 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curCount = env->GetArrayLength(lastArray); 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curData = env->GetIntArrayElements(lastArray, 0); 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint curPos = 0; 62269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project struct dirent* entry; 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while ((entry=readdir(dirp)) != NULL) { 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char* p = entry->d_name; 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (*p) { 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*p < '0' || *p > '9') break; 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p++; 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (*p != 0) continue; 63169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* end; 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int pid = strtol(entry->d_name, &end, 10); 6346215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("File %s pid=%d\n", entry->d_name, pid); 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (curPos >= curCount) { 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jsize newCount = (curCount == 0) ? 10 : (curCount*2); 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jintArray newArray = env->NewIntArray(newCount); 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newArray == NULL) { 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project closedir(dirp); 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/OutOfMemoryError", NULL); 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return NULL; 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint* newData = env->GetIntArrayElements(newArray, 0); 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (curData != NULL) { 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project memcpy(newData, curData, sizeof(jint)*curCount); 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseIntArrayElements(lastArray, curData, 0); 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lastArray = newArray; 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curCount = newCount; 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curData = newData; 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curData[curPos] = pid; 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curPos++; 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65669a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project closedir(dirp); 65869a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (curData != NULL && curPos > 0) { 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project qsort(curData, curPos, sizeof(jint), pid_compare); 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (curPos < curCount) { 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curData[curPos] = -1; 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project curPos++; 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 66769a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (curData != NULL) { 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseIntArrayElements(lastArray, curData, 0); 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 67169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return lastArray; 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectenum { 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_TERM_MASK = 0xff, 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_ZERO_TERM = 0, 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_SPACE_TERM = ' ', 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_COMBINE = 0x100, 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_PARENS = 0x200, 68113ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn PROC_QUOTES = 0x400, 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_OUT_STRING = 0x1000, 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_OUT_LONG = 0x2000, 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PROC_OUT_FLOAT = 0x4000, 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 687c64edde69d18498fb2954f71a546357b07ab996aEvan Millarjboolean android_os_Process_parseProcLineArray(JNIEnv* env, jobject clazz, 68869a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes char* buffer, jint startIndex, jint endIndex, jintArray format, 689c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jobjectArray outStrings, jlongArray outLongs, jfloatArray outFloats) 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 69169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jsize NF = env->GetArrayLength(format); 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jsize NS = outStrings ? env->GetArrayLength(outStrings) : 0; 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jsize NL = outLongs ? env->GetArrayLength(outLongs) : 0; 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jsize NR = outFloats ? env->GetArrayLength(outFloats) : 0; 69669a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jint* formatData = env->GetIntArrayElements(format, 0); 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jlong* longsData = outLongs ? 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->GetLongArrayElements(outLongs, 0) : NULL; 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jfloat* floatsData = outFloats ? 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->GetFloatArrayElements(outFloats, 0) : NULL; 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (formatData == NULL || (NL > 0 && longsData == NULL) 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (NR > 0 && floatsData == NULL)) { 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (formatData != NULL) { 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseIntArrayElements(format, formatData, 0); 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longsData != NULL) { 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseLongArrayElements(outLongs, longsData, 0); 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (floatsData != NULL) { 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseFloatArrayElements(outFloats, floatsData, 0); 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jniThrowException(env, "java/lang/OutOfMemoryError", NULL); 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return JNI_FALSE; 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 717c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jsize i = startIndex; 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jsize di = 0; 71969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jboolean res = JNI_TRUE; 72169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (jsize fi=0; fi<NF; fi++) { 72313ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn jint mode = formatData[fi]; 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&PROC_PARENS) != 0) { 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 72613ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn } else if ((mode&PROC_QUOTES != 0)) { 72713ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn if (buffer[i] == '"') { 72813ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn i++; 72913ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn } else { 73013ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn mode &= ~PROC_QUOTES; 73113ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn } 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const char term = (char)(mode&PROC_TERM_MASK); 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project const jsize start = i; 735c64edde69d18498fb2954f71a546357b07ab996aEvan Millar if (i >= endIndex) { 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project res = JNI_FALSE; 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 73969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jsize end = -1; 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&PROC_PARENS) != 0) { 742c64edde69d18498fb2954f71a546357b07ab996aEvan Millar while (buffer[i] != ')' && i < endIndex) { 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project end = i; 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 74713ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn } else if ((mode&PROC_QUOTES) != 0) { 74813ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn while (buffer[i] != '"' && i < endIndex) { 74913ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn i++; 75013ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn } 75113ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn end = i; 75213ac041b9f21043bc7c848a743be618bfd7a67e9Dianne Hackborn i++; 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 754c64edde69d18498fb2954f71a546357b07ab996aEvan Millar while (buffer[i] != term && i < endIndex) { 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (end < 0) { 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project end = i; 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 76069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 761c64edde69d18498fb2954f71a546357b07ab996aEvan Millar if (i < endIndex) { 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&PROC_COMBINE) != 0) { 764c64edde69d18498fb2954f71a546357b07ab996aEvan Millar while (buffer[i] == term && i < endIndex) { 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i++; 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 76969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7706215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block //ALOGI("Field %d: %d-%d dest=%d mode=0x%x\n", i, start, end, di, mode); 77169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&(PROC_OUT_FLOAT|PROC_OUT_LONG|PROC_OUT_STRING)) != 0) { 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char c = buffer[end]; 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer[end] = 0; 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&PROC_OUT_FLOAT) != 0 && di < NR) { 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* end; 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project floatsData[di] = strtof(buffer+start, &end); 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&PROC_OUT_LONG) != 0 && di < NL) { 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char* end; 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longsData[di] = strtoll(buffer+start, &end, 10); 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mode&PROC_OUT_STRING) != 0 && di < NS) { 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jstring str = env->NewStringUTF(buffer+start); 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->SetObjectArrayElement(outStrings, di, str); 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer[end] = c; 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project di++; 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 79169a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseIntArrayElements(format, formatData, 0); 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longsData != NULL) { 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseLongArrayElements(outLongs, longsData, 0); 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (floatsData != NULL) { 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env->ReleaseFloatArrayElements(outFloats, floatsData, 0); 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 79969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return res; 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 803c64edde69d18498fb2954f71a546357b07ab996aEvan Millarjboolean android_os_Process_parseProcLine(JNIEnv* env, jobject clazz, 80469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jbyteArray buffer, jint startIndex, jint endIndex, jintArray format, 805c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jobjectArray outStrings, jlongArray outLongs, jfloatArray outFloats) 806c64edde69d18498fb2954f71a546357b07ab996aEvan Millar{ 807c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jbyte* bufferArray = env->GetByteArrayElements(buffer, NULL); 808c64edde69d18498fb2954f71a546357b07ab996aEvan Millar 80969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jboolean result = android_os_Process_parseProcLineArray(env, clazz, 81069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes (char*) bufferArray, startIndex, endIndex, format, outStrings, 811c64edde69d18498fb2954f71a546357b07ab996aEvan Millar outLongs, outFloats); 81269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 813c64edde69d18498fb2954f71a546357b07ab996aEvan Millar env->ReleaseByteArrayElements(buffer, bufferArray, 0); 81469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 815c64edde69d18498fb2954f71a546357b07ab996aEvan Millar return result; 816c64edde69d18498fb2954f71a546357b07ab996aEvan Millar} 817c64edde69d18498fb2954f71a546357b07ab996aEvan Millar 818c64edde69d18498fb2954f71a546357b07ab996aEvan Millarjboolean android_os_Process_readProcFile(JNIEnv* env, jobject clazz, 819c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jstring file, jintArray format, jobjectArray outStrings, 820c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jlongArray outLongs, jfloatArray outFloats) 821c64edde69d18498fb2954f71a546357b07ab996aEvan Millar{ 822c64edde69d18498fb2954f71a546357b07ab996aEvan Millar if (file == NULL || format == NULL) { 82369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 824c64edde69d18498fb2954f71a546357b07ab996aEvan Millar return JNI_FALSE; 825c64edde69d18498fb2954f71a546357b07ab996aEvan Millar } 826c64edde69d18498fb2954f71a546357b07ab996aEvan Millar 827c64edde69d18498fb2954f71a546357b07ab996aEvan Millar const char* file8 = env->GetStringUTFChars(file, NULL); 828c64edde69d18498fb2954f71a546357b07ab996aEvan Millar if (file8 == NULL) { 829c64edde69d18498fb2954f71a546357b07ab996aEvan Millar jniThrowException(env, "java/lang/OutOfMemoryError", NULL); 830c64edde69d18498fb2954f71a546357b07ab996aEvan Millar return JNI_FALSE; 831c64edde69d18498fb2954f71a546357b07ab996aEvan Millar } 832c64edde69d18498fb2954f71a546357b07ab996aEvan Millar int fd = open(file8, O_RDONLY); 833c64edde69d18498fb2954f71a546357b07ab996aEvan Millar env->ReleaseStringUTFChars(file, file8); 83469a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 835c64edde69d18498fb2954f71a546357b07ab996aEvan Millar if (fd < 0) { 8368564c8da817a845353d213acd8636b76f567b234Steve Block //ALOGW("Unable to open process file: %s\n", file8); 837c64edde69d18498fb2954f71a546357b07ab996aEvan Millar return JNI_FALSE; 838c64edde69d18498fb2954f71a546357b07ab996aEvan Millar } 83969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 840c64edde69d18498fb2954f71a546357b07ab996aEvan Millar char buffer[256]; 841c64edde69d18498fb2954f71a546357b07ab996aEvan Millar const int len = read(fd, buffer, sizeof(buffer)-1); 842c64edde69d18498fb2954f71a546357b07ab996aEvan Millar close(fd); 84369a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 844c64edde69d18498fb2954f71a546357b07ab996aEvan Millar if (len < 0) { 8458564c8da817a845353d213acd8636b76f567b234Steve Block //ALOGW("Unable to open process file: %s fd=%d\n", file8, fd); 846c64edde69d18498fb2954f71a546357b07ab996aEvan Millar return JNI_FALSE; 847c64edde69d18498fb2954f71a546357b07ab996aEvan Millar } 848c64edde69d18498fb2954f71a546357b07ab996aEvan Millar buffer[len] = 0; 84969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 85069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes return android_os_Process_parseProcLineArray(env, clazz, buffer, 0, len, 851c64edde69d18498fb2954f71a546357b07ab996aEvan Millar format, outStrings, outLongs, outFloats); 85269a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 853c64edde69d18498fb2954f71a546357b07ab996aEvan Millar} 854c64edde69d18498fb2954f71a546357b07ab996aEvan Millar 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid android_os_Process_setApplicationObject(JNIEnv* env, jobject clazz, 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jobject binderObject) 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (binderObject == NULL) { 85969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes jniThrowNullPointerException(env, NULL); 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sp<IBinder> binder = ibinderForJavaObject(env, binderObject); 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectvoid android_os_Process_sendSignal(JNIEnv* env, jobject clazz, jint pid, jint sig) 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (pid > 0) { 8696215d3ff4b5dfa52a5d8b9a42e343051f31066a5Steve Block ALOGI("Sending signal. PID: %d SIG: %d", pid, sig); 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project kill(pid, sig); 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 874906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackbornvoid android_os_Process_sendSignalQuiet(JNIEnv* env, jobject clazz, jint pid, jint sig) 875906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn{ 876906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn if (pid > 0) { 877906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn kill(pid, sig); 878906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn } 879906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn} 880906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jlong android_os_Process_getElapsedCpuTime(JNIEnv* env, jobject clazz) 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project struct timespec ts; 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int res = clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts); 88669a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (res != 0) { 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (jlong) 0; 88969a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes } 89069a017bc1d1649350f830dfada5c6ed5eac0b770Elliott Hughes 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nsecs_t when = seconds_to_nanoseconds(ts.tv_sec) + ts.tv_nsec; 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (jlong) nanoseconds_to_milliseconds(when); 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic jlong android_os_Process_getPss(JNIEnv* env, jobject clazz, jint pid) 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char filename[64]; 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project snprintf(filename, sizeof(filename), "/proc/%d/smaps", pid); 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project FILE * file = fopen(filename, "r"); 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!file) { 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (jlong) -1; 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Tally up all of the Pss from the various maps 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char line[256]; 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jlong pss = 0; 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project while (fgets(line, sizeof(line), file)) { 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jlong v; 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sscanf(line, "Pss: %lld kB", &v) == 1) { 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pss += v; 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fclose(file); 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Return the Pss value in bytes, not kilobytes 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return pss * 1024; 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 922f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne HackbornjintArray android_os_Process_getPidsForCommands(JNIEnv* env, jobject clazz, 923f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jobjectArray commandNames) 924f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn{ 925f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (commandNames == NULL) { 926f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jniThrowNullPointerException(env, NULL); 927f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn return NULL; 928f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 929f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 930f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn Vector<String8> commands; 931f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 932f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jsize count = env->GetArrayLength(commandNames); 933f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 934f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn for (int i=0; i<count; i++) { 935f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jobject obj = env->GetObjectArrayElement(commandNames, i); 936f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (obj != NULL) { 937f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn const char* str8 = env->GetStringUTFChars((jstring)obj, NULL); 938f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (str8 == NULL) { 939f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jniThrowNullPointerException(env, "Element in commandNames"); 940f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn return NULL; 941f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 942f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn commands.add(String8(str8)); 943f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn env->ReleaseStringUTFChars((jstring)obj, str8); 944f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } else { 945f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jniThrowNullPointerException(env, "Element in commandNames"); 946f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn return NULL; 947f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 948f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 949f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 950f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn Vector<jint> pids; 951f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 952f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn DIR *proc = opendir("/proc"); 953f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (proc == NULL) { 954f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn fprintf(stderr, "/proc: %s\n", strerror(errno)); 955f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn return NULL; 956f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 957f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 958f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn struct dirent *d; 959f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn while ((d = readdir(proc))) { 960f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn int pid = atoi(d->d_name); 961f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (pid <= 0) continue; 962f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 963f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn char path[PATH_MAX]; 964f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn char data[PATH_MAX]; 965f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn snprintf(path, sizeof(path), "/proc/%d/cmdline", pid); 966f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 967f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn int fd = open(path, O_RDONLY); 968f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (fd < 0) { 969f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn continue; 970f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 971f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn const int len = read(fd, data, sizeof(data)-1); 972f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn close(fd); 973f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 974f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (len < 0) { 975f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn continue; 976f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 977f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn data[len] = 0; 978f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 979f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn for (int i=0; i<len; i++) { 980f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (data[i] == ' ') { 981f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn data[i] = 0; 982f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn break; 983f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 984f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 985f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 986f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn for (size_t i=0; i<commands.size(); i++) { 987f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (commands[i] == data) { 988f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn pids.add(pid); 989f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn break; 990f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 991f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 992f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 993f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 994f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn closedir(proc); 995f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 996f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jintArray pidArray = env->NewIntArray(pids.size()); 997f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (pidArray == NULL) { 998f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn jniThrowException(env, "java/lang/OutOfMemoryError", NULL); 999f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn return NULL; 1000f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1001f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1002f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn if (pids.size() > 0) { 1003f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn env->SetIntArrayRegion(pidArray, 0, pids.size(), pids.array()); 1004f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn } 1005f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 1006f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn return pidArray; 1007f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn} 1008f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic const JNINativeMethod methods[] = { 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"myPid", "()I", (void*)android_os_Process_myPid}, 101180b12fcaaec458377d966803c3a61504f0897ea1Romain Guy {"myPpid", "()I", (void*)android_os_Process_myPpid}, 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"myTid", "()I", (void*)android_os_Process_myTid}, 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"myUid", "()I", (void*)android_os_Process_myUid}, 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getUidForName", "(Ljava/lang/String;)I", (void*)android_os_Process_getUidForName}, 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getGidForName", "(Ljava/lang/String;)I", (void*)android_os_Process_getGidForName}, 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setThreadPriority", "(II)V", (void*)android_os_Process_setThreadPriority}, 10176793ac943afeb16642f477c43ddfd27e498db37bGlenn Kasten {"setThreadScheduler", "(III)V", (void*)android_os_Process_setThreadScheduler}, 1018160edb3645f8b7012bab70ae6e6e8c4a5733082bChristopher Tate {"setCanSelfBackground", "(Z)V", (void*)android_os_Process_setCanSelfBackground}, 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setThreadPriority", "(I)V", (void*)android_os_Process_setCallingThreadPriority}, 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getThreadPriority", "(I)I", (void*)android_os_Process_getThreadPriority}, 1021e9d376b801b7890b1ef5006ed55de4208e64bb63San Mehat {"setThreadGroup", "(II)V", (void*)android_os_Process_setThreadGroup}, 10229e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey {"setProcessGroup", "(II)V", (void*)android_os_Process_setProcessGroup}, 10239e57c414f39e1a31349bc215635fdcfaf1902ceeJeff Sharkey {"getProcessGroup", "(I)I", (void*)android_os_Process_getProcessGroup}, 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setOomAdj", "(II)Z", (void*)android_os_Process_setOomAdj}, 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setArgV0", "(Ljava/lang/String;)V", (void*)android_os_Process_setArgV0}, 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setUid", "(I)I", (void*)android_os_Process_setUid}, 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"setGid", "(I)I", (void*)android_os_Process_setGid}, 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"sendSignal", "(II)V", (void*)android_os_Process_sendSignal}, 1029906497c574d45d8dfd295b16dece0d0bc32c0895Dianne Hackborn {"sendSignalQuiet", "(II)V", (void*)android_os_Process_sendSignalQuiet}, 10300bca96bcbfe559f9330a01f723c5c9cba51ec05aMarco Nelissen {"getFreeMemory", "()J", (void*)android_os_Process_getFreeMemory}, 103159325eb31f25704bb88c348160bb69e7c1aa3b48Dianne Hackborn {"getTotalMemory", "()J", (void*)android_os_Process_getTotalMemory}, 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"readProcLines", "(Ljava/lang/String;[Ljava/lang/String;[J)V", (void*)android_os_Process_readProcLines}, 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getPids", "(Ljava/lang/String;[I)[I", (void*)android_os_Process_getPids}, 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"readProcFile", "(Ljava/lang/String;[I[Ljava/lang/String;[J[F)Z", (void*)android_os_Process_readProcFile}, 1035c64edde69d18498fb2954f71a546357b07ab996aEvan Millar {"parseProcLine", "([BII[I[Ljava/lang/String;[J[F)Z", (void*)android_os_Process_parseProcLine}, 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getElapsedCpuTime", "()J", (void*)android_os_Process_getElapsedCpuTime}, 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getPss", "(I)J", (void*)android_os_Process_getPss}, 1038f72467ad9843bf5d4b75fb308386e77ebb5c3447Dianne Hackborn {"getPidsForCommands", "([Ljava/lang/String;)[I", (void*)android_os_Process_getPidsForCommands}, 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //{"setApplicationObject", "(Landroid/os/IBinder;)V", (void*)android_os_Process_setApplicationObject}, 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectconst char* const kProcessPathName = "android/os/Process"; 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint register_android_os_Process(JNIEnv* env) 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return AndroidRuntime::registerNativeMethods( 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project env, kProcessPathName, 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project methods, NELEM(methods)); 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1050