public static SnowflakeId Default()
 {
     if (_snowflakeId == null)
     {
         lock (SLock)
         {
             if (_snowflakeId == null)
             {
                 var random       = new Random();
                 var workerId     = random.Next((int)MaxWorkerId);
                 var datacenterId = random.Next((int)MaxDatacenterId);
                 return(_snowflakeId = new SnowflakeId(workerId, datacenterId));
             }
         }
     }
     return(_snowflakeId);
 }
 private long GetTraceId(SegmentContext parentSegmentContext)
 {
     return(parentSegmentContext?.TraceId ?? SnowflakeId.Default().NextId());
 }
 private long GetSegmentId()
 {
     return(SnowflakeId.Default().NextId());
 }
 private long GetTraceId(ICarrier carrier)
 {
     return(carrier.HasValue ? (carrier.TraceId > 0 ? carrier.TraceId : SnowflakeId.Default().NextId()) : SnowflakeId.Default().NextId());
 }