/* * Written by Der Herr Hofrat, der.herr@hofr.at * (C) 2002 FSMLabs * License: GPL Version 2 *//* * user space app to write to an rt-thread via shared memory (mbuff) */#include <stdio.h>#include "hello_shm.h"int main(int argc, char **argv){	hello_shm = (volatile char*) mbuff_alloc("hello_shm",1024);	if( hello_shm == NULL) {		printf("mbuff_alloc failed\n");		return -1;		}	if(argc == 2){		sprintf((char*)hello_shm,argv[1]);		}	else{		sprintf((char*)hello_shm,"good by crule world");		}	printf("wrote `%s` to hello_shm\n", hello_shm);	mbuff_free("hello_shm",(void*)hello_shm);	return 0;}