/// <summary>
/// 雪花算法
/// </summary>
/// <returns></returns>
public long GenerateId()
{
lock (_lock)
{
_currentSequence++;
if (_currentSequence > MaxSequence)
{
Thread.Sleep(1);
}
var timestamp = StartTime.GetTimeDiff(DateTime.Now);
if (timestamp > MaxTimestamp)
{
throw new Exception("时间戳容量不足,请调整StartTime");
}
if (timestamp < _currentTimestamp)
{
throw new Exception("时间获取异常,请检查服务器时间");
}
else if (timestamp > _currentTimestamp)
{
_currentTimestamp = timestamp;
_currentSequence = 0;
}
return(_currentTimestamp << (WorkerIdBits + SequenceBits) | WorkerId << SequenceBits | _currentSequence);
}
}
