C++ (Cpp) JNI_OnLoad Examples

Example #1

File: NAGA_EDog.cpp Project: LsMouse/Android_Unshell

void* new$JNI_OnLoad(JavaVM* vm, void *reserved)
{
	//通过Hook获取到JavaVM，保存JavaVM
	DEXLOG("new$JNI_OnLoad GVM is get!");
	GVM = vm;
	return $JNI_OnLoad(vm,reserved);
}

Example #2

File: AndroidMain.c Project: Gabriele91/Easy2D

/*********************************
Android MAIN
**********************************/
extern void android_main(struct android_app* state) {
    /////////////////////////////////
    // Make sure glue isn't stripped.
    app_dummy();
	//enable COUT 
	overloadSTDCOUT();
    /////////////////////////////////
    //Init state
    state->onAppCmd = __android_handle_cmd;
    state->onInputEvent = __android_handle_input;
    //save app
    app_state=state;
	//attach java thread
	attachToAndroidThreadJava();	
	//init sensors
	initSensors();
	createSensorsEventQueue();
	addAccelerometer();
	////////////////////////////
    int ident;
    int events;
    struct android_poll_source* source;
    //waiting to get window
    while (!getIsAndroidValidDevice()){
        while ((ident = ALooper_pollAll(0, NULL, &events,(void**)&source)) >= 0){
                if (source != NULL) source->process(state, source);
                if (state->destroyRequested != 0) return;
        }
        usleep( 16 );
    }
	////////////////////////////	
    //GET APK (ZIP FILE)
    ANativeActivity* activity = state->activity;
    jclass clazz = (*getEnv())->GetObjectClass(getEnv(), activity->clazz);
    jmethodID methodID = (*getEnv())->GetMethodID(getEnv(), clazz, "getPackageCodePath", "()Ljava/lang/String;");
	jobject result = (*getEnv())->CallObjectMethod(getEnv(), activity->clazz, methodID);
    jboolean isCopy;
    path_apk= (const char*) (*getEnv())->GetStringUTFChars(getEnv(), (jstring)result, &isCopy);
    ////////////////////////////
    //INIT openAL/backend
    JNI_OnLoad(activity->vm,0);
    //no in OpenSL ES backend
    ////////////////////////
	//call main
    char *argv[2];
    argv[0] = strdup("Easy2D");
    argv[1] = NULL;
    int out=main(1, argv);
    //call atexit
    callatexitANDROID();
	//deattach java thread
	deattachToAndroidThreadJava();
	//disable COUT 
	unoverloadSTDCOUT();
}

Example #3

File: method.c Project: Svyatoslavik/robovm

jboolean rvmLoadNativeLibrary(Env* env, const char* path, ClassLoader* classLoader) {
    DynamicLib** nativeLibs = NULL;
    if (!classLoader || classLoader->parent == NULL) {
        // This is the bootstrap classloader
        nativeLibs = &bootNativeLibs;
    } else if (classLoader->parent->parent == NULL && classLoader->object.clazz->classLoader == NULL) {
        // This is the system classloader
        nativeLibs = &mainNativeLibs;
    } else {
        // Unknown classloader
        rvmThrowUnsatisfiedLinkError(env, "Unknown classloader");
        return FALSE;
    }

    char* errorMsg = NULL;
    DynamicLib* lib = rvmOpenDynamicLib(env, path, &errorMsg);
    if (!lib) {
        if (!rvmExceptionOccurred(env)) {
            rvmThrowUnsatisfiedLinkError(env, errorMsg);
        }
        return FALSE;
    }

    obtainNativeLibsLock();

    if (rvmHasDynamicLib(env, lib, *nativeLibs)) {
        // The lib is already in nativeLibs
        rvmCloseDynamicLib(env, lib);
        releaseNativeLibsLock();
        return TRUE;
    }

    jint (*JNI_OnLoad)(JavaVM*, void*) = rvmFindDynamicLibSymbol(env, lib, "JNI_OnLoad", FALSE);
    if (JNI_OnLoad) {
        // TODO: Check that JNI_OnLoad returns a supported JNI version?
        JNI_OnLoad(&env->vm->javaVM, NULL);
        if (rvmExceptionOccurred(env)) {
            releaseNativeLibsLock();
            return FALSE;
        }
    }

    rvmAddDynamicLib(env, lib, nativeLibs);

    releaseNativeLibsLock();

    return TRUE;
}