#include "mf_mbtime.h"
#include "mf_mbconfig.h"
#include "mf_mb.h"
#include "mf_linklist.h"

//定时器链表
mf_link* time_link = NULL;

//从定时链表中连续获得定时器
uint8_t* mf_time_get(void)
{
	static mf_link* link = NULL;
	if(link_get_length(time_link) == 0)
	{
		return NULL;
	}
	if(link == NULL)
	{
		link = time_link->next;	//第一个节点为空节点
	}else
	{
		link = link->next;
		if(link == time_link)
		{
			link = link->next;
		}
	}
	return link->data;
}

//1ms中断调用刷新时间，建议使用定时器调用.
void mf_time_tick_inc(void)
{
	for(uint8_t i = 0;i < link_get_length(time_link);i++)
	{
		Mf_Mb_Time_t* time = (Mf_Mb_Time_t*)mf_time_get();
		if(time == NULL) continue;
		if(time->running == MF_MB_TIME_START && time->trigger == MF_MB_TIME_UNTRIGGER)
		{
			time->real_time++;
			if(time->real_time >= time->set_time)
			{
				time->real_time = 0;
				time->trigger = MF_MB_TIME_TRIGGER;
				time->trigger_number++;
			}
		}
	}
}

//定时器停止计时
void mf_time_tick_stop(Mf_Mb_Time_t* time)
{
	time->real_time = 0;
	time->running = MF_MB_TIME_STOP;
	time->trigger = MF_MB_TIME_UNTRIGGER;
}
//定时器开始计时
void mf_time_tick_start(Mf_Mb_Time_t* time)
{
	time->real_time = 0;
	time->running = MF_MB_TIME_START;
	time->trigger = MF_MB_TIME_UNTRIGGER;
}

/*
*描述：获取定时器触发状态
*参数：time:定时器指针
*返回：0：没有触发 1：已触发
*/
uint8_t mf_time_get_trigger(Mf_Mb_Time_t* time)
{
	if(time->trigger == MF_MB_TIME_TRIGGER)
	{
		mf_time_tick_stop(time);
		return 1;
	}
	return 0;
	
}


/*
*描述：创建定时器
*参数：tick:定时时间ms
*返回：此定时器指针
*/
Mf_Mb_Time_t* mf_time_create(uint32_t tick)
{
	if(time_link == NULL)	//定时器链表判空
	{
		time_link = link_create();	//第一次创建定时器时，先创建定时器链表
		if(time_link == NULL) return NULL;//初始化失败返回NULL
	}
	Mf_Mb_Time_t* time = (Mf_Mb_Time_t*)malloc(sizeof(Mf_Mb_Time_t));	//申请定时器内存
	if(time == NULL) return NULL;	//申请失败返回NULL
	time->set_time = tick;	//设置定时时间
	time->running = MF_MB_TIME_STOP;	//设置定时运行状态
	time->trigger = MF_MB_TIME_UNTRIGGER;	//设置定时触发状态
	time->trigger_number = 0;	//设置定时触发计数
	link_tail_add(time_link,(uint8_t*)time,0);	//添加定时器到定时器链表
	return time;	//返回创建出的定时器
}