rms_init

rms_init

#include <rtthread.h>
 
#define THREAD_PRIORITY         25
#define THREAD_STACK_SIZE       512
#define THREAD_TIMESLICE        5
 
/* 指向线程控制块的指针 */
static rt_thread_t tid1 = RT_NULL, tid2 = RT_NULL, tid3 = RT_NULL;
static struct rt_rms rms1, rms2, rms3 ;
 
/* 线程入口 */
static void thread_entry(void* parameter)
{
	rt_tick_t now, last, diff = 0;
	int a;
	
	rt_rms_init(&rms1, "rms1", 10);
	last = rt_tick_get();
	while(1)
	{
		for(a = 0; a < 1000; a++);
		rt_rms_endcycle(&rms1);
		now = rt_tick_get();
		diff = now;
		diff = diff - last;
		last = now;
	
		rt_kprintf("thread1:%d\n", diff);
 
	}
}
 
static void thread2_entry(void* parameter)
{
	rt_tick_t now, last, diff = 0;
	int a;
	
	rt_rms_init(&rms2, "rms2", 20);
	last = rt_tick_get();
	while(1)
	{
    for(a = 0; a < 1000; a++);
		rt_rms_endcycle(&rms2);
		now = rt_tick_get();
		diff = now;
		diff = diff - last;
		last = now;
		
		rt_kprintf("thread2:%d\n", diff);
   	if(rt_rms_detach(&rms2) == RT_EOK)
  			break;
 
	}
}
 
static void thread3_entry(void* parameter)
{
	rt_tick_t now, last, diff = 0;
	int a;
	
	rt_rms_init(&rms3, "rms2", 20);
	last = rt_tick_get();
	while(1)
	{
        for(a = 0; a < 1000; a++);		
		rt_rms_endcycle(&rms3);
		now = rt_tick_get();
		diff = now;
		diff = diff - last;
		last = now;
		
		rt_kprintf("thread3:%d\n", diff);
  	if(rt_rms_detach(&rms3) == RT_EOK)
 			break;
 
	}
}
 
/* 用户应用入口 */
int rt_application_init()
{
    /* 创建线程1 */
    tid1 = rt_thread_create("t1",
        thread_entry, (void*)1, /* 线程入口是thread_entry, 入口参数是1 */
        THREAD_STACK_SIZE, THREAD_PRIORITY + 1, THREAD_TIMESLICE);
    if (tid1 != RT_NULL)
        rt_thread_startup(tid1);
    else
        return -1;
 
	tid2 = rt_thread_create("t2",
		thread2_entry, (void *)1,
		THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
	if(tid2 != RT_NULL)
        rt_thread_startup(tid2);
    else
        return -1;
		
	tid3 = rt_thread_create("t3",
		thread3_entry, (void *)1,
		THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE);
	if(tid3 != RT_NULL)
        rt_thread_startup(tid3);
    else
        return -1;		
 
    return 0;
}