#include <rtl_cpp.h>pthread_t thread;class A {protected:	int a;public:	virtual void print()=0;	A() { a = 1; rtl_printf("initializing A\n");}	virtual ~A() { rtl_printf("uninitializing A\n"); }};class B : public A{public:	B() { a = 1; rtl_printf("initializing B\n");}	~B() { rtl_printf("uninitializing B\n");}	virtual void print() { rtl_printf("B::print: %d\n", a); }};void * start_routine(void *arg){	struct sched_param p;	p . sched_priority = 1;	pthread_setschedparam (pthread_self(), SCHED_FIFO, &p);	pthread_make_periodic_np (pthread_self(), gethrtime(), 500000000);	while (1) {		pthread_wait_np ();		rtl_printf("I'm here; my arg is %x\n", (unsigned) arg);	}	return 0;}B a;A *ptr_b;int init_module(void) {	__do_global_ctors_aux();	ptr_b = new B;	ptr_b -> print();	return pthread_create (&thread, NULL, start_routine, 0);}void cleanup_module(void) {	pthread_delete_np (thread);	delete ptr_b;	__do_global_dtors_aux();}