AndroidRuntime.h revision d195e5ab401432ddac659791640a2927fc668699
1/* 2 * Copyright (C) 2005 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17// 18 19#ifndef _RUNTIME_ANDROID_RUNTIME_H 20#define _RUNTIME_ANDROID_RUNTIME_H 21 22#include <utils/Errors.h> 23#include <binder/IBinder.h> 24#include <utils/String8.h> 25#include <utils/String16.h> 26#include <utils/Vector.h> 27#include <utils/threads.h> 28#include <pthread.h> 29#include <nativehelper/jni.h> 30 31 32namespace android { 33 34class CursorWindow; 35 36class AndroidRuntime 37{ 38public: 39 AndroidRuntime(); 40 virtual ~AndroidRuntime(); 41 42 /** 43 * Register a set of methods in the specified class. 44 */ 45 static int registerNativeMethods(JNIEnv* env, 46 const char* className, const JNINativeMethod* gMethods, int numMethods); 47 48 /** 49 * Call a class's static main method with the given arguments, 50 */ 51 status_t callMain(const char* className, jclass clazz, int argc, 52 const char* const argv[]); 53 54 /** 55 * Find a class, with the input either of the form 56 * "package/class" or "package.class". 57 */ 58 static jclass findClass(JNIEnv* env, const char* className); 59 60 int addVmArguments(int argc, const char* const argv[]); 61 62 void start(const char *classname, const bool startSystemServer); 63 void start(); // start in android.util.RuntimeInit 64 65 static AndroidRuntime* getRuntime(); 66 67 /** 68 * This gets called after the VM has been created, but before we 69 * run any code. Override it to make any FindClass calls that need 70 * to use CLASSPATH. 71 */ 72 virtual void onVmCreated(JNIEnv* env); 73 74 /** 75 * This gets called after the JavaVM has initialized. Override it 76 * with the system's native entry point. 77 */ 78 virtual void onStarted() = 0; 79 80 /** 81 * This gets called after the JavaVM has initialized after a Zygote 82 * fork. Override it to initialize threads, etc. Upon return, the 83 * correct static main will be invoked. 84 */ 85 virtual void onZygoteInit() {}; 86 87 88 /** 89 * Called when the Java application exits. The default 90 * implementation calls exit(code). 91 */ 92 virtual void onExit(int code); 93 94 /** create a new thread that is visible from Java */ 95 static android_thread_id_t createJavaThread(const char* name, void (*start)(void *), 96 void* arg); 97 98 /** return a pointer to the VM running in this process */ 99 static JavaVM* getJavaVM() { return mJavaVM; } 100 101 /** return a pointer to the JNIEnv pointer for this thread */ 102 static JNIEnv* getJNIEnv(); 103 104 /** return a new string corresponding to 'className' with all '.'s replaced by '/'s. */ 105 static char* toSlashClassName(const char* className); 106 107private: 108 static int startReg(JNIEnv* env); 109 void parseExtraOpts(char* extraOptsBuf); 110 int startVm(JavaVM** pJavaVM, JNIEnv** pEnv); 111 112 Vector<JavaVMOption> mOptions; 113 114 /* JNI JavaVM pointer */ 115 static JavaVM* mJavaVM; 116 117 /* 118 * Thread creation helpers. 119 */ 120 static int javaCreateThreadEtc( 121 android_thread_func_t entryFunction, 122 void* userData, 123 const char* threadName, 124 int32_t threadPriority, 125 size_t threadStackSize, 126 android_thread_id_t* threadId); 127 static int javaThreadShell(void* args); 128}; 129 130extern CursorWindow * get_window_from_object(JNIEnv * env, jobject javaWindow); 131 132} 133 134#endif 135