task1.c

internich公司实现的一个非常非常小的OS

/*
 * FILENAME: task1.c
 *
 * Copyright 2004 By InterNiche Technologies Inc. All rights reserved
 *
 * MODULE: SAMPLE
 *
 * PORTABLE: yes
 */

#include "ipport.h"

extern long task1_wakes; /* count wakeups */


/* FUNCTION: TK_ENTRY()
 *
 * Task1
 * 
 * PARAM1: n/a
 *
 * RETURNS: n/a
 */

static char spinner[] = "\\\\||//--++";

TK_ENTRY(tk_task1)
{
   static char *sptr = spinner;

   for (;;)
   {
      tk_yield();

      dputchar(*sptr++);
      dputchar('\b');
      if (!*sptr)
         sptr = spinner;
      task1_wakes++; /* count wakeups */

   }
   TK_RETURN_OK();
}