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* Copyright (C) 2005 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
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
#include <utils/Errors.h>
#include <binder/IBinder.h>
#include <utils/String8.h>
#include <utils/String16.h>
#include <utils/Vector.h>
#include <utils/threads.h>
#include <pthread.h>
#include <nativehelper/jni.h>
namespace android {
class AndroidRuntime
AndroidRuntime(char* argBlockStart, size_t argBlockSize);
virtual ~AndroidRuntime();
enum StartMode {
void setArgv0(const char* argv0);
void addOption(const char* optionString, void* extra_info = NULL);
* Register a set of methods in the specified class.
static int registerNativeMethods(JNIEnv* env,
const char* className, const JNINativeMethod* gMethods, int numMethods);
* Call a class's static main method with the given arguments,
status_t callMain(const String8& className, jclass clazz, const Vector<String8>& args);
* Find a class, with the input either of the form
* "package/class" or "package.class".
static jclass findClass(JNIEnv* env, const char* className);
void start(const char *classname, const Vector<String8>& options);
void exit(int code);
void setExitWithoutCleanup(bool exitWithoutCleanup) {
mExitWithoutCleanup = exitWithoutCleanup;
static AndroidRuntime* getRuntime();
* This gets called after the VM has been created, but before we
* run any code. Override it to make any FindClass calls that need
* to use CLASSPATH.
virtual void onVmCreated(JNIEnv* env);
* This gets called after the JavaVM has initialized. Override it
* with the system's native entry point.
virtual void onStarted() = 0;
* This gets called after the JavaVM has initialized after a Zygote
* fork. Override it to initialize threads, etc. Upon return, the
* correct static main will be invoked.
virtual void onZygoteInit() { }
* Called when the Java application exits to perform additional cleanup actions
* before the process is terminated.
virtual void onExit(int code) { }
/** create a new thread that is visible from Java */
static android_thread_id_t createJavaThread(const char* name, void (*start)(void *),
void* arg);
/** return a pointer to the VM running in this process */
static JavaVM* getJavaVM() { return mJavaVM; }
/** return a pointer to the JNIEnv pointer for this thread */
static JNIEnv* getJNIEnv();
/** return a new string corresponding to 'className' with all '.'s replaced by '/'s. */
static char* toSlashClassName(const char* className);
/** Create a Java string from an ASCII or Latin-1 string */
static jstring NewStringLatin1(JNIEnv* env, const char* bytes);
static int startReg(JNIEnv* env);
bool parseRuntimeOption(const char* property,
char* buffer,
const char* runtimeArg,
const char* defaultArg = "");
bool parseCompilerOption(const char* property,
char* buffer,
const char* compilerArg,
const char* quotingArg);
bool parseCompilerRuntimeOption(const char* property,
char* buffer,
const char* runtimeArg,
const char* quotingArg);
void parseExtraOpts(char* extraOptsBuf, const char* quotingArg);
int startVm(JavaVM** pJavaVM, JNIEnv** pEnv);
Vector<JavaVMOption> mOptions;
bool mExitWithoutCleanup;
char* const mArgBlockStart;
const size_t mArgBlockLength;
/* JNI JavaVM pointer */
static JavaVM* mJavaVM;
* Thread creation helpers.
static int javaCreateThreadEtc(
android_thread_func_t entryFunction,
void* userData,
const char* threadName,
int32_t threadPriority,
size_t threadStackSize,
android_thread_id_t* threadId);
static int javaThreadShell(void* args);