public void SetTask(PeriodicTask task, double startTime, double endTime)
{
_task = task;
_startTime = startTime;
_endTime = endTime;
_listReleaseTime = _task.GetReleaseTime(_startTime, _endTime);
_listSoftDeadline = _task.GetSoftDeadline(_startTime, _endTime);
_listHardDeadline = _task.GetHardDeadline(_startTime, _endTime);
}