/// <summary>
/// 添加新项到时间轮上
/// </summary>
/// <param name="itemId"></param>
/// <param name="delaySeconds"></param>
/// <returns></returns>
public bool Add(long itemId, int delaySeconds)
{
if (_itemIds.Contains(itemId))
{
return(false);
}
_itemIds.Add(itemId);
//如果小于1s,添加不成功
if (delaySeconds < 1)
{
return(false);
}
var cyNum = delaySeconds / _slotNum;
var offset = delaySeconds - (cyNum * _slotNum);
var index = 0;
if (offset + _currentIndex >= _slotNum)
{
index = (_currentIndex + offset) - _slotNum;
}
else
{
index = _currentIndex + offset;
}
var item = new TWItem
{
Id = itemId,
CyNum = cyNum
};
var itemSet = _itemsSet[index];
if (itemSet == null)
{
lock (this)
{
itemSet = _itemsSet[index];
if (itemSet == null)
{
itemSet = new HashSet <TWItem>();
_itemsSet[index] = itemSet;
}
}
}
lock (this)
{
return(itemSet.Add(item));
}
}
public bool Equals(TWItem item)
{
return(item.Id == Id);
}