redef fun generate_input do poll_looper 0
end
-
-extern class JavaClassLoader in "Java" `{java.lang.ClassLoader`}
- super JavaObject
-end
-
-redef class Sys
- # Get the running JVM
- redef fun create_default_jvm
- do
- var jvm = app.native_app_glue.ndk_native_activity.vm
- var jni_env = jvm.attach_current_thread
- if jni_env.address_is_null then jni_env = jvm.env
-
- self.jvm = jvm
- self.jni_env = jni_env
- end
-
- #protected fun ndk_jvm: JavaVM do`{ return mnit_java_app->activity->vm; `}
-
- private var class_loader: nullable JavaObject = null
- private var class_loader_method: nullable JMethodID = null
- redef fun load_jclass(name)
- do
- var class_loader = self.class_loader
- if class_loader == null then
- find_class_loader(app.native_app_glue.ndk_native_activity.java_native_activity)
- class_loader = self.class_loader
- assert class_loader != null
- end
-
- var class_loader_method = self.class_loader_method
- assert class_loader_method != null
-
- return load_jclass_intern(class_loader, class_loader_method, name)
- end
-
- private fun find_class_loader(native_activity: NativeActivity) import jni_env, class_loader=, JavaObject.as nullable, class_loader_method=, JMethodID.as nullable `{
- JNIEnv *env = Sys_jni_env(recv);
-
- // Retrieve main activity
- jclass class_activity = (*env)->GetObjectClass(env, native_activity);
- if (class_activity == NULL) {
- __android_log_print(ANDROID_LOG_ERROR, "Nit", "retreiving activity class");
- (*env)->ExceptionDescribe(env);
- exit(1);
- }
-
- jmethodID class_activity_getClassLoader = (*env)->GetMethodID(env, class_activity, "getClassLoader", "()Ljava/lang/ClassLoader;");
- if (class_activity_getClassLoader == NULL) {
- __android_log_print(ANDROID_LOG_ERROR, "Nit", "retreiving 'getClassLoader' method");
- (*env)->ExceptionDescribe(env);
- exit(1);
- }
-
- // Call activity.getClassLoader
- jobject instance_class_loader = (*env)->CallObjectMethod(env, native_activity, class_activity_getClassLoader);
- if (instance_class_loader == NULL) {
- __android_log_print(ANDROID_LOG_ERROR, "Nit", "retreiving class loader instance");
- (*env)->ExceptionDescribe(env);
- exit(1);
- }
-
- jclass class_class_loader = (*env)->GetObjectClass(env, instance_class_loader);
- if (class_class_loader == NULL) {
- __android_log_print(ANDROID_LOG_ERROR, "Nit", "retreiving class of class loader");
- (*env)->ExceptionDescribe(env);
- exit(1);
- }
-
- // Get the method ClassLoader.findClass
- jmethodID class_class_loader_findClass = (*env)->GetMethodID(env, class_class_loader, "findClass", "(Ljava/lang/String;)Ljava/lang/Class;");
- if (class_class_loader_findClass == NULL) {
- __android_log_print(ANDROID_LOG_ERROR, "Nit", "retreiving 'findClass' method");
- (*env)->ExceptionDescribe(env);
- exit(1);
- }
-
- // Return the values to Nit
- Sys_class_loader__assign(recv, JavaObject_as_nullable((*env)->NewGlobalRef(env, instance_class_loader)));
- Sys_class_loader_method__assign(recv, JMethodID_as_nullable(class_class_loader_findClass));
-
- // Clean up
- (*env)->DeleteLocalRef(env, class_activity);
- (*env)->DeleteLocalRef(env, instance_class_loader);
- (*env)->DeleteLocalRef(env, class_class_loader);
- `}
-
- private fun load_jclass_intern(instance_class_loader: JavaObject, class_loader_findClass: JMethodID, name: NativeString): JClass import jni_env `{
- JNIEnv *env = Sys_jni_env(recv);
- jobject class_name = (*env)->NewStringUTF(env, name);
-
- jclass java_class = (*env)->CallObjectMethod(env, instance_class_loader, class_loader_findClass, class_name);
- if (java_class == NULL) {
- __android_log_print(ANDROID_LOG_ERROR, "Nit", "loading targetted class");
- (*env)->ExceptionDescribe(env);
- exit(1);
- }
-
- (*env)->DeleteLocalRef(env, class_name);
-
- return java_class;
- `}
-end