/**************************************************************************//**
 * @item     CosyOS-III Kernel
 * @file     os_handler.c
 * @brief    tCosyTick_Handler and sPendSV_Handler
 * @author   迟凯峰
 * @version  v3.0.0
 * @date     2026.07.21
 ******************************************************************************/

#include "os_var.h"
#include "os_api.h"
#include "sv_com.h"
#include "sv_create.h"
#include "sv_tick.h"
#include "ur_api.h"
#include "ur_eapi.h"

#if defined ( __ICCARM__ )
#define __IAR_WEAK __WEAK
#else
#define __IAR_WEAK
#endif

sCat2Str(SYSCFG_STARTERCREATE, ExternTask(Starter));
#if (SYSCFG_DEBUGGING == __ENABLED__)
__IAR_WEAK s_u32_t usedtime[2]/**/sZeroInstall_Group;
#endif

__IAR_WEAK void tCosyTick_Handler(void) MCUCFG_SYSTICK_ATTRIBUTE
{
	#if (OS_TIMINTTOTAL > 0 || OS_TIMQRYTOTAL > 0)
	s_u8_t _SYS_REG_ i;
	#endif
	#if (SYSCFG_SYSTICKTIME_COUNT == __ENABLED__)
	#if defined ( __GNUC__ )
	m_tick_t ticktemp_s = 0;
	#else
	m_tick_t ticktemp_s;
	#endif
	#endif
	s_taskctrl_tsp _SYS_REG_ htask;
	
	/* 清除中断标志位 */
	#if defined ( __C51__ ) || defined ( __C251__ )
	mSysTick_Clear();
	#endif
	
	if(s_task_current == OS_NULL) return;
	
	/* 系统滴答开始时刻 */// 此刻定义为系统滴答开始时刻 for 系统滴答时间统计。
	#if (SYSCFG_SYSTICKTIME_COUNT == __ENABLED__)
	if(s_taskmgr_sign){
		ticktemp_s = MCUCFG_SYSTICK_CURRVALUE;
	}
	#endif
	
	/* 软件RTC */
	#if (SYSCFG_SOFTRTC == __ENABLED__)
	#define counter s_rtc_counter
	if(true){
		if(counter < 1000000UL / SYSCFG_SYSTICK_CYCLE - 1){
			counter++;
			if(counter == 1000000UL / SYSCFG_SYSTICK_CYCLE / 2){
				s_sign_every.halfsec = true;
			}
		}
		else{
			counter = 0;
			s_sign_every.halfsec = true;
			s_sign_every.second = true;
			if(s_rtc.second < 59) s_rtc.second++;
			else{
				s_rtc.second = 0;
				s_sign_every.minute = true;
				if(s_rtc.minute < 59) s_rtc.minute++;
				else{
					s_rtc.minute = 0;
					s_sign_every.hour = true;
					if(s_rtc.hour < 23) s_rtc.hour++;
					else{
						s_rtc.hour = 0;
						s_sign_every.day = true;
						if(s_rtc.day < 7) s_rtc.day++;
						else s_rtc.day = 1;
						if(s_rtc.date < (s_rtc.month == 2 ? s_month2day : s_month0day[s_rtc.month])) s_rtc.date++;
						else{
							s_rtc.date = 1;
							s_sign_every.month = true;
							if(s_rtc.month < 12) s_rtc.month++;
							else{
								s_rtc.month = 1;
								s_sign_every.year = true;
								if(s_rtc.year < 99) s_rtc.year++;
								else{
									s_rtc.year = 0;
									s_rtc.yeah++;
								}
							}
						}
					}
				}
			}
		}
	}
	#undef counter
	#endif
	
	/* 运行时间统计 */
	#if (SYSCFG_RUNTIME_COUNT == __ENABLED__)
	if(true){
		static m_rtccount_t _SYS_MEM_ counter = 0;
		if(counter < 1000000UL / SYSCFG_SYSTICK_CYCLE - 1){
			counter++;
		}
		else{
			counter = 0;
			if(s_runtime.second < 59) s_runtime.second++;
			else{
				s_runtime.second = 0;
				if(s_runtime.minute < 59) s_runtime.minute++;
				else{
					s_runtime.minute = 0;
					if(s_runtime.hour < 23) s_runtime.hour++;
					else{
						s_runtime.hour = 0;
						s_runtime.day++;
					}
				}
			}
		}
	}
	#endif
	
	/* 滴答钩子 */
	#if (SYSCFG_TICKHOOK == __ENABLED__)
	if(true){
		void tick_hook(void);
		tick_hook();
	}
	#endif
	
	/* 任务管理器 */
	#if (SYSCFG_DEBUGGING == __ENABLED__)
	if(s_debug_recvlen){
		void os_debug_recv(void);
		os_debug_recv();
		s_debug_recvlen = 0;
	}
	if(s_debug_sendsign){
		s_debug_sendsign = false;
		tTimQry_ms(OS_TMID_DEBUGGER, 10);
	}
	#endif
	
	/* 定时中断 */
	#if (OS_TIMINTTOTAL > 0)
	i = OS_TIMINTTOTAL;
	while(i--){
		if(s_timint_handle[i]->timer){
			s_timint_handle[i]->timer--;
			if(!s_timint_handle[i]->timer){
				if(s_timint_handle[i]->autoreload){
					s_timint_handle[i]->timer = s_timint_handle[i]->reload;
				}
				if(s_timint_handle[i]->hookortask){
					sResumeTask_TimInt(i);
				}
				else{
					sCallHook_TimInt(i);
				}
			}
		}
	}
	#endif
	
	/* 定时查询 */
	#if (OS_TIMQRYTOTAL > 0)
	i = OS_TIMQRYTOTAL;
	while(i--){
		if(s_timqry_handle[i]->timer && s_timqry_handle[i]->timer < (s_timqry_t)~0){
			s_timqry_handle[i]->timer--;
		}
		if(!s_timqry_handle[i]->timer){
			if((*s_timqry_handle[i]->event)()){
				if(s_timqry_handle[i]->autoreload){
					s_timqry_handle[i]->timer = s_timqry_handle[i]->reload;
				}
				else{
					s_timqry_handle[i]->timer = ~0;
				}
				if(s_timqry_handle[i]->hookortask){
					sResumeTask_TimQry(i);
				}
				else{
					sCallHook_TimQry(i);
				}
			}
		}
	}
	#endif
	
	/* 任务定时器 */// 定时器链表中的任务状态：就绪、浮动、阻塞、挂起。
	if(true){
		s_timer_pointer = (s_timer_pointer + 1) & (OS_TIMESLOTNUM - 1UL);
		htask = s_timer_list[s_timer_pointer];
		if(htask != OS_NULL){
			bool loop_sign = true;
			s_taskctrl_tsp _SYS_REG_ hnext;
			s_taskctrl_tsp _SYS_REG_ htail = htask->last_t;
			__TIMER_LOOP:
			if(htask == htail){
				loop_sign = false;
			}
			else{
				hnext = htask->next_t;
			}
			if(htask->status < OS_STATUS_SUSPENDED){
				if( htask->timer.cycle){
					htask->timer.cycle--;
				}
				else if(htask->status == OS_STATUS_READY){
					sa_remove_timerlist(htask);
					s_sign_delay = false;
				}
				else{
					sa_clear_block(htask);
				}
			}
			if(loop_sign){
				htask = hnext;
				goto __TIMER_LOOP;
			}
		}
	}
	
	/* 时间片 */
	#if (SYSCFG_SAMEPRISCHEDULE == __TIMESHARING__)
	if(s_task_current->tc_counter < OS_TIMESHARING(s_task_current)){
		s_task_current->tc_counter++;
	}
	else{
		s_sign_schedule.every[1] = false;
	}
	#endif
	
	/* 安全运行时 */
	#if (SYSCFG_SAFERUNTIME == __ENABLED__)
	/* 结束超时 */// 删除超时链表。
	htask = s_timeout_list;
	if(!s_timeout_sign && htask != OS_NULL){
		s_taskctrl_tsp _SYS_REG_ hnext;
		while(true){
			if(htask->status == OS_STATUS_TIMEOUT){ // 超时
				htask->status = OS_STATUS_READY;
				sa_add_ready(htask);
			}
			else if(htask->status == (OS_STATUS_TIMEOUT | OS_STATUS_SUSPENDED)){ // 超时|挂起
				htask->status = OS_STATUS_READY | OS_STATUS_SUSPENDED;
			}
			htask->srt_counter = 0;
			hnext = htask->next_b;
//			htask->last_b = 
			htask->next_b = OS_NULL;
			if(s_timeout_list == hnext){
				s_timeout_list = OS_NULL;
				break;
			}
			htask = hnext;
		}
	}
	/* 超时判断 */
	htask = s_task_current;
	if(htask->pri && htask->srt_maximum){
		if(++htask->srt_counter > htask->srt_maximum){
			if(htask->status == OS_STATUS_READY){
				sa_insert_blocklist(&s_timeout_list);
				sa_remove_ready(htask);
				htask->status = OS_STATUS_TIMEOUT;
				htask->handle = &s_timeout_list;
				s_timeout_sign = true;
				#if (SYSCFG_DEBUGGING == __ENABLED__)
				s_alarm.timeout_saferuntime = true;
				#endif
			}
		}
	}
	#endif
	
	/* 任务管理器 */
	#if (SYSCFG_DEBUGGING == __ENABLED__)
	if(s_taskmgr_sign){
		/* CPU使用时间计数 */
		usedtime[0]++;
		s_taskmgr_upspeed++;
		/* 系统滴答时间统计 */// 此刻定义为系统滴答结束时刻。
		#if (SYSCFG_SYSTICKTIME_COUNT == __ENABLED__)
		if(true){
			m_tick_t ticktemp_e = MCUCFG_SYSTICK_CURRVALUE;
			#if   (MCUCFG_SYSTICK_COUNTMODE == 1 || MCUCFG_SYSTICK_COUNTMODE == 3)
			if(ticktemp_e > ticktemp_s){
				s_tick_count1 += ticktemp_e - ticktemp_s;
			}
			#elif (MCUCFG_SYSTICK_COUNTMODE == 2 || MCUCFG_SYSTICK_COUNTMODE == 4)
			if(ticktemp_s > ticktemp_e){
				s_tick_count1 += ticktemp_s - ticktemp_e;
			}
			#endif
			s_tick_count2++;
		}
		#endif
	}
	#endif
	
	/* 触发PendSV */
	if(!s_sign_schedule.total){
		mPendSV_Set();
	}
}

#if (SYSCFG_DEBUGGING == __ENABLED__)
__IAR_WEAK void _cpu_usedtime_(m_tick_t ticktemp_0) MCUCFG_OSIT_ATTRIBUTE
{
	#if   (MCUCFG_SYSTICK_COUNTMODE == 1 || MCUCFG_SYSTICK_COUNTMODE == 3)
	if(usedtime[0]){
		s_task_current->usedtime[0] += usedtime[0] - 1;
		usedtime[0] = 0;
		usedtime[1] = (MCUCFG_SYSTICK_MAXVALUE - usedtime[1]) + (ticktemp_0 - MCUCFG_SYSTICK_MINVALUE);
	}
	else if(ticktemp_0 < usedtime[1]){
		usedtime[0] = ~0;
		usedtime[1] = (MCUCFG_SYSTICK_MAXVALUE - usedtime[1]) + (ticktemp_0 - MCUCFG_SYSTICK_MINVALUE);
	}
	else{
		usedtime[1] = (ticktemp_0 - usedtime[1]);
	}
	#elif (MCUCFG_SYSTICK_COUNTMODE == 2 || MCUCFG_SYSTICK_COUNTMODE == 4)
	if(usedtime[0]){
		s_task_current->usedtime[0] += usedtime[0] - 1;
		usedtime[0] = 0;
		usedtime[1] = (usedtime[1] - MCUCFG_SYSTICK_MINVALUE) + (MCUCFG_SYSTICK_MAXVALUE - ticktemp_0);
	}
	else if(usedtime[1] < ticktemp_0){
		usedtime[0] = ~0;
		usedtime[1] = (usedtime[1] - MCUCFG_SYSTICK_MINVALUE) + (MCUCFG_SYSTICK_MAXVALUE - ticktemp_0);
	}
	else{
		usedtime[1] = (usedtime[1] - ticktemp_0);
	}
	#endif
	s_task_current->usedtime[0] += (s_task_current->usedtime[1] + usedtime[1]) / MCUCFG_SYSTICK_COUNT1CYC;
	s_task_current->usedtime[1]  = (s_task_current->usedtime[1] + usedtime[1]) % MCUCFG_SYSTICK_COUNT1CYC;
}
#endif

__IAR_WEAK void _float_to_ready_(s_taskctrl_tsp htask) MCUCFG_OSIT_ATTRIBUTE
{
	htask->status = OS_STATUS_READY;
//	if(htask->next_b != OS_NULL){
		sa_remove_blocklist(htask);
//	}
	if(htask->next_t != OS_NULL){
		sa_remove_timerlist(htask);
	}
}

__IAR_WEAK s_taskctrl_tsp _SYS_MEM_ s_task_news/**/sZeroInstall;

__IAR_WEAK s_u8_t _start_task_(void) MCUCFG_OSIT_ATTRIBUTE
{
	s_taskctrl_tsp _SYS_REG_ node_news = *(s_task_starter.hload)->h2task;
	
	if(node_news != OS_NULL){
		/* 任务已启动 */
		if(node_news->status != OS_STATUS_DELETED){
			#if (SYSCFG_DEBUGGING == __ENABLED__)
			s_alarm.task_repeated_startup = true;
			#endif
			s_task_starter._ecode = OS_ECODE_TASKSTARTED;
			goto __STARTUP_END;
		}
		/* 静态创建 */
		else if(node_news->stacksize < MCUCFG_BASICSTACKSIZE){
			#if (SYSCFG_DEBUGGING == __ENABLED__)
			s_fault.failed_startuptask = true;
			s_fault.overflow_taskstack = true;
			#endif
			s_task_starter._ecode = OS_ECODE_OVERFLOW_TASKSTACK;
			goto __STARTUP_END;
		}
		else{
			mTaskStack_Init();
		}
	}
	/* 动态创建 */
	else{
		node_news = (s_taskctrl_tsp)s_malloc(sizeof(s_taskctrl_ts));
		if(node_news != OS_NULL){
			node_news->stacksize = (s_task_starter.hload)->stacksize;
			if(node_news->stacksize < MCUCFG_BASICSTACKSIZE){
				node_news->stacksize = MCUCFG_BASICSTACKSIZE;
				node_news->create = 2;
			}
			else{
				node_news->create = 1;
			}
			node_news->bsp = OS_NULL;
			node_news->bsp = (s_u8_t _MALLOC_MEM_ *)s_malloc(node_news->stacksize);
			if(node_news->bsp != OS_NULL){
				node_news->opri = (s_task_starter.hload)->opri;
				node_news->h2task = (s_task_starter.hload)->h2task;
				*node_news->h2task = node_news;
				node_news->entry = (s_task_starter.hload)->entry;
				#if (SYSCFG_DEBUGGING == __ENABLED__)
				node_news->name = (s_task_starter.hload)->name;
				#endif
				#if (SYSCFG_SAFERUNTIME == __ENABLED__)
				node_news->srt_maximum = (s_task_starter.hload)->srt_maximum;
				#endif
				mTaskStack_Init();
			}
			else{
				s_free(node_news);
				#if (SYSCFG_DEBUGGING == __ENABLED__)
				s_fault.failed_startuptask = true;
				s_fault.mallocfailed_taskstack = true;
				#endif
				s_task_starter._ecode = OS_ECODE_MALLOCFAIL_TASKSTACK;
				goto __STARTUP_END;
			}
		}
		else{
			#if (SYSCFG_DEBUGGING == __ENABLED__)
			s_fault.failed_startuptask = true;
			s_fault.mallocfailed_tasknode = true;
			#endif
			s_task_starter._ecode = OS_ECODE_MALLOCFAIL_TASKNODE;
			goto __STARTUP_END;
		}
	}
	/* 公共部分 */
	node_news->status = s_task_starter.status;
	node_news->blocktype = 0;
	node_news->handle = OS_NULL;
	node_news->timer.slots = 0;
	node_news->timer.cycle = 0;
	if(node_news->opri <= (s_u8_t)(SYSCFG_TASKPRIORITY - 1)){
		node_news->pri = node_news->opri;
	}
	else{
		node_news->pri = SYSCFG_TASKPRIORITY - 1;
		#if (SYSCFG_DEBUGGING == __ENABLED__)
		s_alarm.outrange_taskpriority = true;
		#endif
	}
	#if   (SYSCFG_SAMEPRISCHEDULE == __COOPERATIVE__)
	node_news->yield = false;
	#elif (SYSCFG_SAMEPRISCHEDULE == __TIMESHARING__)
	node_news->tc_counter = 0;
	#endif
	#if (SYSCFG_DEBUGGING == __ENABLED__)
	node_news->usedtime[0] = 0;
	node_news->usedtime[1] = 0;
	node_news->stacklen_max = MCUCFG_BASICSTACKSIZE;
	#endif
	#if (SYSCFG_SAFERUNTIME == __ENABLED__)
	node_news->srt_counter = 0;
	#endif
//	node_news->last_b = OS_NULL;
	node_news->next_b = OS_NULL;
//	node_news->last_t = OS_NULL;
	node_news->next_t = OS_NULL;
	#if (SYSCFG_SAMEPRISCHEDULE && SYSCFG_MUTEX == __ENABLED__)
	node_news->link = OS_NULL;
	#endif
	sa_insert_taskque(node_news);
	s_task_queue_count++;
	if(s_task_starter.status == OS_STATUS_READY){
		sa_add_ready(node_news);
	}
	s_task_starter._ecode = OS_ECODE_NOERROR;
	__STARTUP_END:
	s_task_starter.hload = OS_NULL;
	if(node_news == Starter){
		if(s_task_starter._ecode == OS_ECODE_NOERROR){
			#if (SYSCFG_DEBUGGING == __ENABLED__)
			if(s_taskmgr_sign){
				usedtime[1] = MCUCFG_SYSTICK_CURRVALUE;
			}
			#endif
			#if defined ( __C51__ ) || defined ( __C251__ )
			mUserReg_RESc();
			#endif
			s_task_news = Starter;
			return 1;
		}
		else return 0;
	}
	else return 2;
}

void pendsv_hook(void);
#if defined ( __C251__ )
#pragma functions(static)
#endif
__IAR_WEAK s_u8_t sPendSV_Handler(void) MCUCFG_OSIT_ATTRIBUTE
{
	/* 中断FIFO服务 */
	#if (SYSCFG_PENDSVFIFO_DEPTH > 0)
	mPendSV_FIFOHandle();
	#endif
	
	/* 中断FLAG服务 */
	#if (SYSCFG_PENDSVHOOK == __ENABLED__)
	pendsv_hook();
	#endif
	
	/* 每监控（每PendSV假定切换任务）*/
	#if (SYSCFG_DEBUGGING == __ENABLED__)
	if(s_task_current != OS_NULL){
		m_stacklen_t len = mTaskStack_Check0();
		if(s_task_current->stacklen_max < len){
			s_task_current->stacklen_max = len;
			if(s_task_current->stacksize < len){
				s_alarm.overflow_taskstack = true;
			}
		}
	}
	#endif
	
	/* 任务启动 */
	if(!s_sign_startup){
		s_sign_startup = true;
		if(s_task_starter.hload != OS_NULL){
			s_u8_t r = _start_task_();
			if(r < 2) return r;
		}
	}
	
	/* 任务调度 */
	if(s_sign_schedule.total) return 0;
	else{
		#if (SYSCFG_DEBUGGING == __ENABLED__)
		#if defined ( __GNUC__ )
		m_tick_t _SYS_REG_ ticktemp_0 = 0;
		#else
		m_tick_t _SYS_REG_ ticktemp_0;
		#endif
		m_bit_t push_sign = false; /*!< 入栈信号 */
		#else
		#define push_sign true
		#endif
		s_u8_t _SYS_REG_ pri;
		s_taskctrl_tsp _SYS_REG_ node_news;
		s_sign_schedule.every[1] = true;
		
		/* 抢占式调度（选择就绪）*/
		if(true){
			#if   (SYSCFG_TASKPRIORITY > 64)
			s_u8_t table_index = s_task_pickmap[s_task_table_index >> (SYSCFG_TASKPICKBITMAP & 1)];
			s_u8_t bytes_index = s_task_pickmap[s_task_bytes_index[table_index] >> (SYSCFG_TASKPICKBITMAP & 1)];
			s_u8_t   bit_index = s_task_pickmap[s_task_ready_table[table_index][bytes_index] >> (SYSCFG_TASKPICKBITMAP & 1)];
						   pri = (table_index << 6) + (bytes_index << 3) + bit_index;
			#elif (SYSCFG_TASKPRIORITY > 8)
			s_u8_t bytes_index = s_task_pickmap[s_task_bytes_index >> (SYSCFG_TASKPICKBITMAP & 1)];
			s_u8_t   bit_index = s_task_pickmap[s_task_ready_table[bytes_index] >> (SYSCFG_TASKPICKBITMAP & 1)];
						   pri = (bytes_index << 3) + bit_index;
			#else
						   pri = s_task_pickmap[s_task_ready_table >> (SYSCFG_TASKPICKBITMAP & 1)];
			#endif
			node_news = s_task_queue[pri];
		}
		
		/* 相同优先级调度 */
		#if (SYSCFG_SAMEPRISCHEDULE)
		while(true){
			#if   (SYSCFG_SAMEPRISCHEDULE == __COOPERATIVE__) /* 协作式调度 */
			#define __NOT_YIELD !node_news->yield             // 无需禅让
			#define __CLR_YIELD  node_news->yield = false     // 清除禅让
			#elif (SYSCFG_SAMEPRISCHEDULE == __TIMESHARING__) /* 时间片轮转调度 */// 时间片未到期不禅让，到期禅让
			#define __NOT_YIELD  node_news->tc_counter < OS_TIMESHARING(node_news)
			#define __CLR_YIELD  node_news->tc_counter = 0
			#endif
			static s_taskctrl_tsp _SYS_REG_ node_temp;
			if(node_news->status <= OS_STATUS_FLOATING){
				if(__NOT_YIELD){
					break;
				}
				else{
					__CLR_YIELD;
					node_temp = node_news; // 缓存禅让的就绪任务
				}
			}
			if(node_news != s_task_queue[pri]->last){
				node_news = node_news->next;
			}
			else{ /* 在该优先级组中，未能找到其它的就绪任务，继续禅让的就绪任务。*/
				node_news = node_temp;
				break;
			}
		}
		#endif
		
		/* 新任务为事件阻塞 */
		if(node_news->blocktype){
			node_news->blocktype = 0;
			if(node_news->status == OS_STATUS_FLOATING){ /* 浮动变就绪 */
				_float_to_ready_(node_news);
			}
			mSysIRQ_Disable(); /* 内核上锁 */// 使服务层临界区连续。
		}
		
		/* 新任务仍为当前任务 -> 返回 */
		if(node_news == s_task_current){
			return 0;
		}
		
		/* 新任务轮转至其优先级组首节点 */
		#if (SYSCFG_SAMEPRISCHEDULE)
		if(node_news != s_task_queue[pri]){
			s_task_queue[pri] = node_news;
		}
		#endif
		
		/* 入栈监控 */
		#if (SYSCFG_DEBUGGING == __ENABLED__)
		/* 栈尾数据校验 */
		#if (MCUCFG_TASKSTACK_MODE & __PSP__)
		if(s_taskmgr_sign){
			m_stacklen_t len = mTaskStack_Check();
			if(s_task_current->stacklen_max < len){
				s_task_current->stacklen_max = len;
			}
		}
		#endif
		if(s_task_current->status < OS_STATUS_STOPPED){
			if(s_task_current->stacksize < s_task_current->stacklen_max){
				#if (MCUCFG_TASKSTACK_REALLOC == __ENABLED__)
				if(s_task_current->create){
					s_task_current->stacksize = s_task_current->stacklen_max + SYSCFG_TASKSTACK_REALLOCINC;
					s_free(s_task_current->bsp);
					s_task_current->bsp = OS_NULL;
					s_task_current->bsp = (s_u8_t _MALLOC_MEM_ *)s_malloc(s_task_current->stacksize);
					if(s_task_current->bsp != OS_NULL){
						push_sign = true;
						s_task_current->create = 2;
						s_alarm.realloc_taskstack = true;
					}
					else{
						sa_stop_task(s_task_current);
						s_fault.overflow_taskstack = true;
						s_fault.reallocfailed_taskstack = true;
					}
				}
				else{
					sa_stop_task(s_task_current);
					s_fault.overflow_taskstack = true;
				}
				#else
				sa_stop_task(s_task_current);
				s_fault.overflow_taskstack = true;
				#endif
			}
			else{
				push_sign = true;
			}
		}
		#endif
		
		/* 任务切换时刻 */// 此刻定义为任务切换时刻 for CPU使用率统计。
		#if (SYSCFG_DEBUGGING == __ENABLED__)
		if(s_taskmgr_sign){
			ticktemp_0 = MCUCFG_SYSTICK_CURRVALUE;
		}
		#endif
		
		/* 当前任务入栈-预处理 */
		if(push_sign){
			#if (SYSCFG_SAFERUNTIME == __ENABLED__)
			if(s_task_current->pri > node_news->pri){
				s_task_current->srt_counter = 0;
			}
			#endif
			#if (SYSCFG_DEBUGGING == __ENABLED__)
			if(s_taskmgr_sign){
				_cpu_usedtime_(ticktemp_0);
			}
			#endif
			#if defined ( __C51__ ) || defined ( __C251__ )
			mUserReg_SAVEc();
			#endif
		}
		
		/* 新任务出栈-预处理 */
		if(true){
			#if (SYSCFG_DEBUGGING == __ENABLED__)
			if(s_taskmgr_sign){
				usedtime[1] = ticktemp_0;
			}
			#endif
			#if defined ( __C51__ ) || defined ( __C251__ )
			mUserReg_RESc();
			#endif
			s_task_news = node_news;
		}
		
		return (s_u8_t)push_sign + 1;
	}
}