分享自己写的链表+时间片任务架构程序<希望跟大家多交流...

1万 · 2017-5-12 14:58

一言不合直接上代码，代码如下所示：

void sTaskListInit(void)
{
p_head = NULL;
}

bool sTaskListAdd(INT16U handle, INT32U period, INT32U tick, TaskFunc_Type func, void *para)
{
ListTask_Type *pvTaskHandle = (ListTask_Type *)malloc(sizeof(ListTask_Type));
if(pvTaskHandle == NULL)
{
      return false;
}
else
{
      memset(pvTaskHandle, 0x00, sizeof(ListTask_Type));
}

ListTask_Type *pvTaskPoint = p_head;
pvTaskHandle->handle = handle;
pvTaskHandle->period = period;
pvTaskHandle->tick = tick;
pvTaskHandle->func = func;
pvTaskHandle->para = para;
pvTaskHandle->p_next = NULL;
pvTaskHandle->n_next = NULL;
if(pvTaskPoint == NULL)
{
      p_head = pvTaskHandle;
}
else
{
      while (pvTaskPoint->p_next)
      {
         pvTaskPoint = pvTaskPoint->p_next;
      }
      pvTaskPoint->p_next = pvTaskHandle;    //链表最后加入了新节点
}

return true;
}

void sTaskExecute(ListTask_Type *pvTaskHandle, INT32U tick)
{
switch(pvTaskHandle->line)
{
      case 0:
      {
         while(1)
         {
            do
            {
                  pvTaskHandle->tick = tick;
                  pvTaskHandle->line = 1;
                  case 1:
                  {
                     if(tick - pvTaskHandle->tick > pvTaskHandle->period)
                     {
                        pvTaskHandle->func(pvTaskHandle->para);
                        pvTaskHandle->line = 0;
                        break;
                     }
                     return;
                  }
            }while(0);
         }
      }
      default:
         pvTaskHandle->line = 0;
         break;
}
}

void sTaskSchedule(void)
{
ListTask_Type *pvTaskHandle;

for(;;)
{
      pvTaskHandle = p_head;

      do
      {
         sTaskExecute(pvTaskHandle, ultick);
         pvTaskHandle = pvTaskHandle->p_next;
      }while(pvTaskHandle);
}
}