rsos.c

嵌入式系统内核模拟器

/*
===============================================================================
| Copyright (C) 2004 RuanHaiShen, All rights reserved.
| SUMMARY: 
|   r&s demo implementation.
|
| DESCRIPTION:
|   See http://www.01s.org for documentation, latest information, license 
|   and contact details.
|   email:[e-mail]
=============================================================================*/ 
/*===========================================================================*/
#include "inc/kapi.h"


#define STACK_SIZE 512
unsigned char stacks[3][STACK_SIZE];

void test_entry(arg_t arg);
void test_welcome(arg_t arg);

void main()
{
    hardware_init();
    system_init();

    task_create(0, test_welcome, 0, "Welcome", &stacks[0][STACK_SIZE-1], STACK_SIZE, 0); 
    task_create(1, test_entry, (arg_t)1, "TaskR", &stacks[1][STACK_SIZE-1], STACK_SIZE, 0);
    task_create(2, test_entry, (arg_t)2, "TaskS", &stacks[2][STACK_SIZE-1], STACK_SIZE, 0);

    system_start();
}

void test_entry(arg_t arg)
{
    int i;
    int me;

    task_sleep(200);        /*wait welcome completed */
    
    me = (int)arg;
    for (;;) {
        switch (me) {
	    case 1:
		    printk("R: She is quite a beauty!\n");
	        task_sleep(100);
	        printk("halting");
            for(i = 0; i < 40; i++){
                printk(".");
                task_sleep(5);
            }
            halt();         /*shut down*/
		    break;
	    case 2:
	        task_sleep(50);
		    printk("S: Yes, she is an angel.\n");
		    task_delete(SELF_PRIO);
		    break;
	    }
    }
}

void test_welcome(arg_t arg)
{
    int i;
    arg = arg;          /* prevent compiler warning */

    printk("Initializing");
    for(i=0; i<30; i++){
        printk(".");
        task_sleep(5);
    }
    printk("done!\n");
    
    task_sleep(20);

    printk("R&S Real-Time Kernel V%d.%2.2d\n\n", system_version()/100, system_version()%100);
}

/*===========================================================================*/