mart/ex09/ex09a1.c

   1 #include <stdio.h>
   2 #include <signal.h>
   3 #include <unistd.h>
   4 #include <sys/mman.h>
   5
   6 #include <native/task.h>
   7 #include <native/timer.h>
   8 #include <native/intr.h>
   9
  10 #include <rtdk.h>
  11
  12 #define KBDIRQ 1
  13
  14 RT_TASK task;
  15
  16 void keyboard_handler(void *arg)
  17 {
  18         RT_INTR intr;
  19         rt_intr_create(&intr, "keyboard handler", KBDIRQ, I_PROPAGATE);
  20         int keypresses = 0;
  21         while(1){
  22                 rt_printf("#Keypresses: %d\n", keypresses += rt_intr_wait(&intr, TM_INFINITE));
  23         }
  24 }
  25
  26 int main(int argc, char* argv[])
  27 {
  28         /* Perform auto-init of rt_print buffers if the task doesn't do so */
  29         rt_print_auto_init(1);
  30
  31         /* Avoids memory swapping for this program */
  32         mlockall(MCL_CURRENT | MCL_FUTURE);
  33
  34         rt_task_create(&task, "task", 0, 50, 0);
  35         rt_task_start(&task, &keyboard_handler, 0);
  36
  37         rt_printf("CRTL+C to stop\n");
  38         pause();
  39 }