/* mod-syscall-ret-test.c
 *
 * Call the new module system calls that pass parameters and return results.
 * Use the existing unused system calls
 * futex 240, sched_setaffinity 241, sched_getaffinity 242 
 *
 */

/* Standard include files for syscall, see man syscall */
#include <sys/syscall.h>
#include <asm/unistd.h>
#include <stdio.h>               /* for printf */

int main(void)
{
  int n;
  char * msg = "Hi there";

  printf("Hello, calling module my_syscall 240 system call\n");
  syscall(__NR_futex);        

  printf("Hello, calling module my_syscall_ret 241 system call\n");
  n = syscall(__NR_sched_setaffinity);        
  printf("mod_syscall_ret 241 returned: %d\n",n);

  printf("Hello, calling module my_syscall_parm 242 system call\n");
  n = syscall(__NR_sched_getaffinity, msg);        
  printf("mod_syscall_parm 242 returned: %d\n",n);

  printf("Done. Go check /var/log/syslog\n");
  return 0;
}