blob: d1ba2d13499ee5b3d9b2949545e53ea40146947d [file] [log] [blame]
/* //device/libs/android_runtime/android_util_Process.cpp
**
** Copyright 2006, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#define LOG_TAG "Process"
#include <utils/Log.h>
#include <binder/IPCThreadState.h>
#include <binder/ProcessState.h>
#include <binder/IServiceManager.h>
#include <utils/String8.h>
#include <utils/Vector.h>
#include <android_runtime/AndroidRuntime.h>
#include "android_util_Binder.h"
#include "JNIHelp.h"
#include <sys/errno.h>
#include <sys/resource.h>
#include <sys/types.h>
#include <cutils/sched_policy.h>
#include <dirent.h>
#include <fcntl.h>
#include <grp.h>
#include <pwd.h>
#include <signal.h>
#include <unistd.h>
#define POLICY_DEBUG 0
#define GUARD_THREAD_PRIORITY 0
using namespace android;
#if GUARD_THREAD_PRIORITY
Mutex gKeyCreateMutex;
static pthread_key_t gBgKey = -1;
#endif
static void signalExceptionForPriorityError(JNIEnv* env, jobject obj, int err)
{
switch (err) {
case EINVAL:
jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
break;
case ESRCH:
jniThrowException(env, "java/lang/IllegalArgumentException", "Given thread does not exist");
break;
case EPERM:
jniThrowException(env, "java/lang/SecurityException", "No permission to modify given thread");
break;
case EACCES:
jniThrowException(env, "java/lang/SecurityException", "No permission to set to given priority");
break;
default:
jniThrowException(env, "java/lang/RuntimeException", "Unknown error");
break;
}
}
static void signalExceptionForGroupError(JNIEnv* env, jobject obj, int err)
{
switch (err) {
case EINVAL:
jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
break;
case ESRCH:
jniThrowException(env, "java/lang/IllegalArgumentException", "Given thread does not exist");
break;
case EPERM:
jniThrowException(env, "java/lang/SecurityException", "No permission to modify given thread");
break;
case EACCES:
jniThrowException(env, "java/lang/SecurityException", "No permission to set to given group");
break;
default:
jniThrowException(env, "java/lang/RuntimeException", "Unknown error");
break;
}
}
jint android_os_Process_myPid(JNIEnv* env, jobject clazz)
{
return getpid();
}
jint android_os_Process_myUid(JNIEnv* env, jobject clazz)
{
return getuid();
}
jint android_os_Process_myTid(JNIEnv* env, jobject clazz)
{
return androidGetTid();
}
jint android_os_Process_getUidForName(JNIEnv* env, jobject clazz, jstring name)
{
if (name == NULL) {
jniThrowNullPointerException(env, NULL);
return -1;
}
const jchar* str16 = env->GetStringCritical(name, 0);
String8 name8;
if (str16) {
name8 = String8(str16, env->GetStringLength(name));
env->ReleaseStringCritical(name, str16);
}
const size_t N = name8.size();
if (N > 0) {
const char* str = name8.string();
for (size_t i=0; i<N; i++) {
if (str[i] < '0' || str[i] > '9') {
struct passwd* pwd = getpwnam(str);
if (pwd == NULL) {
return -1;
}
return pwd->pw_uid;
}
}
return atoi(str);
}
return -1;
}
jint android_os_Process_getGidForName(JNIEnv* env, jobject clazz, jstring name)
{
if (name == NULL) {
jniThrowNullPointerException(env, NULL);
return -1;
}
const jchar* str16 = env->GetStringCritical(name, 0);
String8 name8;
if (str16) {
name8 = String8(str16, env->GetStringLength(name));
env->ReleaseStringCritical(name, str16);
}
const size_t N = name8.size();
if (N > 0) {
const char* str = name8.string();
for (size_t i=0; i<N; i++) {
if (str[i] < '0' || str[i] > '9') {
struct group* grp = getgrnam(str);
if (grp == NULL) {
return -1;
}
return grp->gr_gid;
}
}
return atoi(str);
}
return -1;
}
void android_os_Process_setThreadGroup(JNIEnv* env, jobject clazz, int pid, jint grp)
{
int res = androidSetThreadSchedulingGroup(pid, grp);
if (res != NO_ERROR) {
signalExceptionForGroupError(env, clazz, res == BAD_VALUE ? EINVAL : errno);
return;
}
}
void android_os_Process_setProcessGroup(JNIEnv* env, jobject clazz, int pid, jint grp)
{
DIR *d;
FILE *fp;
char proc_path[255];
struct dirent *de;
if (grp > ANDROID_TGROUP_MAX || grp < 0) {
signalExceptionForGroupError(env, clazz, EINVAL);
return;
}
#if POLICY_DEBUG
char cmdline[32];
int fd;
strcpy(cmdline, "unknown");
sprintf(proc_path, "/proc/%d/cmdline", pid);
fd = open(proc_path, O_RDONLY);
if (fd >= 0) {
int rc = read(fd, cmdline, sizeof(cmdline)-1);
cmdline[rc] = 0;
close(fd);
}
if (grp == ANDROID_TGROUP_BG_NONINTERACT) {
LOGD("setProcessGroup: vvv pid %d (%s)", pid, cmdline);
} else {
LOGD("setProcessGroup: ^^^ pid %d (%s)", pid, cmdline);
}
#endif
sprintf(proc_path, "/proc/%d/task", pid);
if (!(d = opendir(proc_path))) {
// If the process exited on us, don't generate an exception
if (errno != ENOENT)
signalExceptionForGroupError(env, clazz, errno);
return;
}
while ((de = readdir(d))) {
int t_pid;
int t_pri;
if (de->d_name[0] == '.')
continue;
t_pid = atoi(de->d_name);
if (!t_pid) {
LOGE("Error getting pid for '%s'\n", de->d_name);
continue;
}
t_pri = getpriority(PRIO_PROCESS, t_pid);
if (grp == ANDROID_TGROUP_DEFAULT &&
t_pri >= ANDROID_PRIORITY_BACKGROUND) {
// This task wants to stay at background
continue;
}
if (androidSetThreadSchedulingGroup(t_pid, grp) != NO_ERROR) {
signalExceptionForGroupError(env, clazz, errno);
break;
}
}
closedir(d);
}
static void android_os_Process_setCanSelfBackground(JNIEnv* env, jobject clazz, jboolean bgOk) {
// Establishes the calling thread as illegal to put into the background.
// Typically used only for the system process's main looper.
#if GUARD_THREAD_PRIORITY
LOGV("Process.setCanSelfBackground(%d) : tid=%d", bgOk, androidGetTid());
{
Mutex::Autolock _l(gKeyCreateMutex);
if (gBgKey == -1) {
pthread_key_create(&gBgKey, NULL);
}
}
// inverted: not-okay, we set a sentinel value
pthread_setspecific(gBgKey, (void*)(bgOk ? 0 : 0xbaad));
#endif
}
void android_os_Process_setThreadPriority(JNIEnv* env, jobject clazz,
jint pid, jint pri)
{
#if GUARD_THREAD_PRIORITY
// if we're putting the current thread into the background, check the TLS
// to make sure this thread isn't guarded. If it is, raise an exception.
if (pri >= ANDROID_PRIORITY_BACKGROUND) {
if (pid == androidGetTid()) {
void* bgOk = pthread_getspecific(gBgKey);
if (bgOk == ((void*)0xbaad)) {
LOGE("Thread marked fg-only put self in background!");
jniThrowException(env, "java/lang/SecurityException", "May not put this thread into background");
return;
}
}
}
#endif
int rc = androidSetThreadPriority(pid, pri);
if (rc != 0) {
if (rc == INVALID_OPERATION) {
signalExceptionForPriorityError(env, clazz, errno);
} else {
signalExceptionForGroupError(env, clazz, errno);
}
}
//LOGI("Setting priority of %d: %d, getpriority returns %d\n",
// pid, pri, getpriority(PRIO_PROCESS, pid));
}
void android_os_Process_setCallingThreadPriority(JNIEnv* env, jobject clazz,
jint pri)
{
jint tid = android_os_Process_myTid(env, clazz);
android_os_Process_setThreadPriority(env, clazz, tid, pri);
}
jint android_os_Process_getThreadPriority(JNIEnv* env, jobject clazz,
jint pid)
{
errno = 0;
jint pri = getpriority(PRIO_PROCESS, pid);
if (errno != 0) {
signalExceptionForPriorityError(env, clazz, errno);
}
//LOGI("Returning priority of %d: %d\n", pid, pri);
return pri;
}
jboolean android_os_Process_setOomAdj(JNIEnv* env, jobject clazz,
jint pid, jint adj)
{
#ifdef HAVE_OOM_ADJ
char text[64];
sprintf(text, "/proc/%d/oom_adj", pid);
int fd = open(text, O_WRONLY);
if (fd >= 0) {
sprintf(text, "%d", adj);
write(fd, text, strlen(text));
close(fd);
}
return true;
#endif
return false;
}
void android_os_Process_setArgV0(JNIEnv* env, jobject clazz, jstring name)
{
if (name == NULL) {
jniThrowNullPointerException(env, NULL);
return;
}
const jchar* str = env->GetStringCritical(name, 0);
String8 name8;
if (str) {
name8 = String8(str, env->GetStringLength(name));
env->ReleaseStringCritical(name, str);
}
if (name8.size() > 0) {
ProcessState::self()->setArgV0(name8.string());
}
}
jint android_os_Process_setUid(JNIEnv* env, jobject clazz, jint uid)
{
#if HAVE_ANDROID_OS
return setuid(uid) == 0 ? 0 : errno;
#else
return ENOSYS;
#endif
}
jint android_os_Process_setGid(JNIEnv* env, jobject clazz, jint uid)
{
#if HAVE_ANDROID_OS
return setgid(uid) == 0 ? 0 : errno;
#else
return ENOSYS;
#endif
}
static int pid_compare(const void* v1, const void* v2)
{
//LOGI("Compare %d vs %d\n", *((const jint*)v1), *((const jint*)v2));
return *((const jint*)v1) - *((const jint*)v2);
}
static jlong android_os_Process_getFreeMemory(JNIEnv* env, jobject clazz)
{
int fd = open("/proc/meminfo", O_RDONLY);
if (fd < 0) {
LOGW("Unable to open /proc/meminfo");
return -1;
}
char buffer[256];
const int len = read(fd, buffer, sizeof(buffer)-1);
close(fd);
if (len < 0) {
LOGW("Unable to read /proc/meminfo");
return -1;
}
buffer[len] = 0;
int numFound = 0;
jlong mem = 0;
static const char* const sums[] = { "MemFree:", "Cached:", NULL };
static const int sumsLen[] = { strlen("MemFree:"), strlen("Cached:"), NULL };
char* p = buffer;
while (*p && numFound < 2) {
int i = 0;
while (sums[i]) {
if (strncmp(p, sums[i], sumsLen[i]) == 0) {
p += sumsLen[i];
while (*p == ' ') p++;
char* num = p;
while (*p >= '0' && *p <= '9') p++;
if (*p != 0) {
*p = 0;
p++;
if (*p == 0) p--;
}
mem += atoll(num) * 1024;
numFound++;
break;
}
i++;
}
p++;
}
return numFound > 0 ? mem : -1;
}
void android_os_Process_readProcLines(JNIEnv* env, jobject clazz, jstring fileStr,
jobjectArray reqFields, jlongArray outFields)
{
//LOGI("getMemInfo: %p %p", reqFields, outFields);
if (fileStr == NULL || reqFields == NULL || outFields == NULL) {
jniThrowNullPointerException(env, NULL);
return;
}
const char* file8 = env->GetStringUTFChars(fileStr, NULL);
if (file8 == NULL) {
return;
}
String8 file(file8);
env->ReleaseStringUTFChars(fileStr, file8);
jsize count = env->GetArrayLength(reqFields);
if (count > env->GetArrayLength(outFields)) {
jniThrowException(env, "java/lang/IllegalArgumentException", "Array lengths differ");
return;
}
Vector<String8> fields;
int i;
for (i=0; i<count; i++) {
jobject obj = env->GetObjectArrayElement(reqFields, i);
if (obj != NULL) {
const char* str8 = env->GetStringUTFChars((jstring)obj, NULL);
//LOGI("String at %d: %p = %s", i, obj, str8);
if (str8 == NULL) {
jniThrowNullPointerException(env, "Element in reqFields");
return;
}
fields.add(String8(str8));
env->ReleaseStringUTFChars((jstring)obj, str8);
} else {
jniThrowNullPointerException(env, "Element in reqFields");
return;
}
}
jlong* sizesArray = env->GetLongArrayElements(outFields, 0);
if (sizesArray == NULL) {
return;
}
//LOGI("Clearing %d sizes", count);
for (i=0; i<count; i++) {
sizesArray[i] = 0;
}
int fd = open(file.string(), O_RDONLY);
if (fd >= 0) {
const size_t BUFFER_SIZE = 2048;
char* buffer = (char*)malloc(BUFFER_SIZE);
int len = read(fd, buffer, BUFFER_SIZE-1);
close(fd);
if (len < 0) {
LOGW("Unable to read %s", file.string());
len = 0;
}
buffer[len] = 0;
int foundCount = 0;
char* p = buffer;
while (*p && foundCount < count) {
bool skipToEol = true;
//LOGI("Parsing at: %s", p);
for (i=0; i<count; i++) {
const String8& field = fields[i];
if (strncmp(p, field.string(), field.length()) == 0) {
p += field.length();
while (*p == ' ' || *p == '\t') p++;
char* num = p;
while (*p >= '0' && *p <= '9') p++;
skipToEol = *p != '\n';
if (*p != 0) {
*p = 0;
p++;
}
char* end;
sizesArray[i] = strtoll(num, &end, 10);
//LOGI("Field %s = %d", field.string(), sizesArray[i]);
foundCount++;
break;
}
}
if (skipToEol) {
while (*p && *p != '\n') {
p++;
}
if (*p == '\n') {
p++;
}
}
}
free(buffer);
} else {
LOGW("Unable to open %s", file.string());
}
//LOGI("Done!");
env->ReleaseLongArrayElements(outFields, sizesArray, 0);
}
jintArray android_os_Process_getPids(JNIEnv* env, jobject clazz,
jstring file, jintArray lastArray)
{
if (file == NULL) {
jniThrowNullPointerException(env, NULL);
return NULL;
}
const char* file8 = env->GetStringUTFChars(file, NULL);
if (file8 == NULL) {
jniThrowException(env, "java/lang/OutOfMemoryError", NULL);
return NULL;
}
DIR* dirp = opendir(file8);
env->ReleaseStringUTFChars(file, file8);
if(dirp == NULL) {
return NULL;
}
jsize curCount = 0;
jint* curData = NULL;
if (lastArray != NULL) {
curCount = env->GetArrayLength(lastArray);
curData = env->GetIntArrayElements(lastArray, 0);
}
jint curPos = 0;
struct dirent* entry;
while ((entry=readdir(dirp)) != NULL) {
const char* p = entry->d_name;
while (*p) {
if (*p < '0' || *p > '9') break;
p++;
}
if (*p != 0) continue;
char* end;
int pid = strtol(entry->d_name, &end, 10);
//LOGI("File %s pid=%d\n", entry->d_name, pid);
if (curPos >= curCount) {
jsize newCount = (curCount == 0) ? 10 : (curCount*2);
jintArray newArray = env->NewIntArray(newCount);
if (newArray == NULL) {
closedir(dirp);
jniThrowException(env, "java/lang/OutOfMemoryError", NULL);
return NULL;
}
jint* newData = env->GetIntArrayElements(newArray, 0);
if (curData != NULL) {
memcpy(newData, curData, sizeof(jint)*curCount);
env->ReleaseIntArrayElements(lastArray, curData, 0);
}
lastArray = newArray;
curCount = newCount;
curData = newData;
}
curData[curPos] = pid;
curPos++;
}
closedir(dirp);
if (curData != NULL && curPos > 0) {
qsort(curData, curPos, sizeof(jint), pid_compare);
}
while (curPos < curCount) {
curData[curPos] = -1;
curPos++;
}
if (curData != NULL) {
env->ReleaseIntArrayElements(lastArray, curData, 0);
}
return lastArray;
}
enum {
PROC_TERM_MASK = 0xff,
PROC_ZERO_TERM = 0,
PROC_SPACE_TERM = ' ',
PROC_COMBINE = 0x100,
PROC_PARENS = 0x200,
PROC_OUT_STRING = 0x1000,
PROC_OUT_LONG = 0x2000,
PROC_OUT_FLOAT = 0x4000,
};
jboolean android_os_Process_parseProcLineArray(JNIEnv* env, jobject clazz,
char* buffer, jint startIndex, jint endIndex, jintArray format,
jobjectArray outStrings, jlongArray outLongs, jfloatArray outFloats)
{
const jsize NF = env->GetArrayLength(format);
const jsize NS = outStrings ? env->GetArrayLength(outStrings) : 0;
const jsize NL = outLongs ? env->GetArrayLength(outLongs) : 0;
const jsize NR = outFloats ? env->GetArrayLength(outFloats) : 0;
jint* formatData = env->GetIntArrayElements(format, 0);
jlong* longsData = outLongs ?
env->GetLongArrayElements(outLongs, 0) : NULL;
jfloat* floatsData = outFloats ?
env->GetFloatArrayElements(outFloats, 0) : NULL;
if (formatData == NULL || (NL > 0 && longsData == NULL)
|| (NR > 0 && floatsData == NULL)) {
if (formatData != NULL) {
env->ReleaseIntArrayElements(format, formatData, 0);
}
if (longsData != NULL) {
env->ReleaseLongArrayElements(outLongs, longsData, 0);
}
if (floatsData != NULL) {
env->ReleaseFloatArrayElements(outFloats, floatsData, 0);
}
jniThrowException(env, "java/lang/OutOfMemoryError", NULL);
return JNI_FALSE;
}
jsize i = startIndex;
jsize di = 0;
jboolean res = JNI_TRUE;
for (jsize fi=0; fi<NF; fi++) {
const jint mode = formatData[fi];
if ((mode&PROC_PARENS) != 0) {
i++;
}
const char term = (char)(mode&PROC_TERM_MASK);
const jsize start = i;
if (i >= endIndex) {
res = JNI_FALSE;
break;
}
jsize end = -1;
if ((mode&PROC_PARENS) != 0) {
while (buffer[i] != ')' && i < endIndex) {
i++;
}
end = i;
i++;
}
while (buffer[i] != term && i < endIndex) {
i++;
}
if (end < 0) {
end = i;
}
if (i < endIndex) {
i++;
if ((mode&PROC_COMBINE) != 0) {
while (buffer[i] == term && i < endIndex) {
i++;
}
}
}
//LOGI("Field %d: %d-%d dest=%d mode=0x%x\n", i, start, end, di, mode);
if ((mode&(PROC_OUT_FLOAT|PROC_OUT_LONG|PROC_OUT_STRING)) != 0) {
char c = buffer[end];
buffer[end] = 0;
if ((mode&PROC_OUT_FLOAT) != 0 && di < NR) {
char* end;
floatsData[di] = strtof(buffer+start, &end);
}
if ((mode&PROC_OUT_LONG) != 0 && di < NL) {
char* end;
longsData[di] = strtoll(buffer+start, &end, 10);
}
if ((mode&PROC_OUT_STRING) != 0 && di < NS) {
jstring str = env->NewStringUTF(buffer+start);
env->SetObjectArrayElement(outStrings, di, str);
}
buffer[end] = c;
di++;
}
}
env->ReleaseIntArrayElements(format, formatData, 0);
if (longsData != NULL) {
env->ReleaseLongArrayElements(outLongs, longsData, 0);
}
if (floatsData != NULL) {
env->ReleaseFloatArrayElements(outFloats, floatsData, 0);
}
return res;
}
jboolean android_os_Process_parseProcLine(JNIEnv* env, jobject clazz,
jbyteArray buffer, jint startIndex, jint endIndex, jintArray format,
jobjectArray outStrings, jlongArray outLongs, jfloatArray outFloats)
{
jbyte* bufferArray = env->GetByteArrayElements(buffer, NULL);
jboolean result = android_os_Process_parseProcLineArray(env, clazz,
(char*) bufferArray, startIndex, endIndex, format, outStrings,
outLongs, outFloats);
env->ReleaseByteArrayElements(buffer, bufferArray, 0);
return result;
}
jboolean android_os_Process_readProcFile(JNIEnv* env, jobject clazz,
jstring file, jintArray format, jobjectArray outStrings,
jlongArray outLongs, jfloatArray outFloats)
{
if (file == NULL || format == NULL) {
jniThrowNullPointerException(env, NULL);
return JNI_FALSE;
}
const char* file8 = env->GetStringUTFChars(file, NULL);
if (file8 == NULL) {
jniThrowException(env, "java/lang/OutOfMemoryError", NULL);
return JNI_FALSE;
}
int fd = open(file8, O_RDONLY);
env->ReleaseStringUTFChars(file, file8);
if (fd < 0) {
//LOGW("Unable to open process file: %s\n", file8);
return JNI_FALSE;
}
char buffer[256];
const int len = read(fd, buffer, sizeof(buffer)-1);
close(fd);
if (len < 0) {
//LOGW("Unable to open process file: %s fd=%d\n", file8, fd);
return JNI_FALSE;
}
buffer[len] = 0;
return android_os_Process_parseProcLineArray(env, clazz, buffer, 0, len,
format, outStrings, outLongs, outFloats);
}
void android_os_Process_setApplicationObject(JNIEnv* env, jobject clazz,
jobject binderObject)
{
if (binderObject == NULL) {
jniThrowNullPointerException(env, NULL);
return;
}
sp<IBinder> binder = ibinderForJavaObject(env, binderObject);
}
void android_os_Process_sendSignal(JNIEnv* env, jobject clazz, jint pid, jint sig)
{
if (pid > 0) {
LOGI("Sending signal. PID: %d SIG: %d", pid, sig);
kill(pid, sig);
}
}
void android_os_Process_sendSignalQuiet(JNIEnv* env, jobject clazz, jint pid, jint sig)
{
if (pid > 0) {
kill(pid, sig);
}
}
static jlong android_os_Process_getElapsedCpuTime(JNIEnv* env, jobject clazz)
{
struct timespec ts;
int res = clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts);
if (res != 0) {
return (jlong) 0;
}
nsecs_t when = seconds_to_nanoseconds(ts.tv_sec) + ts.tv_nsec;
return (jlong) nanoseconds_to_milliseconds(when);
}
static jlong android_os_Process_getPss(JNIEnv* env, jobject clazz, jint pid)
{
char filename[64];
snprintf(filename, sizeof(filename), "/proc/%d/smaps", pid);
FILE * file = fopen(filename, "r");
if (!file) {
return (jlong) -1;
}
// Tally up all of the Pss from the various maps
char line[256];
jlong pss = 0;
while (fgets(line, sizeof(line), file)) {
jlong v;
if (sscanf(line, "Pss: %lld kB", &v) == 1) {
pss += v;
}
}
fclose(file);
// Return the Pss value in bytes, not kilobytes
return pss * 1024;
}
static const JNINativeMethod methods[] = {
{"myPid", "()I", (void*)android_os_Process_myPid},
{"myTid", "()I", (void*)android_os_Process_myTid},
{"myUid", "()I", (void*)android_os_Process_myUid},
{"getUidForName", "(Ljava/lang/String;)I", (void*)android_os_Process_getUidForName},
{"getGidForName", "(Ljava/lang/String;)I", (void*)android_os_Process_getGidForName},
{"setThreadPriority", "(II)V", (void*)android_os_Process_setThreadPriority},
{"setCanSelfBackground", "(Z)V", (void*)android_os_Process_setCanSelfBackground},
{"setThreadPriority", "(I)V", (void*)android_os_Process_setCallingThreadPriority},
{"getThreadPriority", "(I)I", (void*)android_os_Process_getThreadPriority},
{"setThreadGroup", "(II)V", (void*)android_os_Process_setThreadGroup},
{"setProcessGroup", "(II)V", (void*)android_os_Process_setProcessGroup},
{"setOomAdj", "(II)Z", (void*)android_os_Process_setOomAdj},
{"setArgV0", "(Ljava/lang/String;)V", (void*)android_os_Process_setArgV0},
{"setUid", "(I)I", (void*)android_os_Process_setUid},
{"setGid", "(I)I", (void*)android_os_Process_setGid},
{"sendSignal", "(II)V", (void*)android_os_Process_sendSignal},
{"sendSignalQuiet", "(II)V", (void*)android_os_Process_sendSignalQuiet},
{"getFreeMemory", "()J", (void*)android_os_Process_getFreeMemory},
{"readProcLines", "(Ljava/lang/String;[Ljava/lang/String;[J)V", (void*)android_os_Process_readProcLines},
{"getPids", "(Ljava/lang/String;[I)[I", (void*)android_os_Process_getPids},
{"readProcFile", "(Ljava/lang/String;[I[Ljava/lang/String;[J[F)Z", (void*)android_os_Process_readProcFile},
{"parseProcLine", "([BII[I[Ljava/lang/String;[J[F)Z", (void*)android_os_Process_parseProcLine},
{"getElapsedCpuTime", "()J", (void*)android_os_Process_getElapsedCpuTime},
{"getPss", "(I)J", (void*)android_os_Process_getPss},
//{"setApplicationObject", "(Landroid/os/IBinder;)V", (void*)android_os_Process_setApplicationObject},
};
const char* const kProcessPathName = "android/os/Process";
int register_android_os_Process(JNIEnv* env)
{
return AndroidRuntime::registerNativeMethods(
env, kProcessPathName,
methods, NELEM(methods));
}