public Snowflake(
int machineId = 0,
DateTime?timestampOffset = null,
IClock clock = null,
bool ignoreWarning = false)
{
IgnoreWarning = ignoreWarning;
LastSequence = 0;
MachineIdMask =
Convert.ToInt64(
new string('0', MachineIdOffset) +
new string('1', MachineIdLength) +
new string('0', 64 - MachineIdOffset - MachineIdLength),
2);
var idWithOnlyUnmaskedMachineId = ((long)machineId) << (64 - MachineIdOffset - MachineIdLength);
IdWithOnlyMachineId = idWithOnlyUnmaskedMachineId & MachineIdMask;
if (IdWithOnlyMachineId != idWithOnlyUnmaskedMachineId)
{
throw new ArgumentException($"Machine ID should not be longer than {MachineIdLength} bits.");
}
TimestampMask = Convert.ToInt64(
new string('0', 1) +
new string('1', MachineIdOffset - 1) +
new string('0', MachineIdLength) +
new string('0', 64 - MachineIdOffset - MachineIdLength),
2);
RandomNumberMask =
Convert.ToInt64(
new string('0', MachineIdOffset) +
new string('0', MachineIdLength) +
new string('1', 64 - MachineIdOffset - MachineIdLength),
2);
TimestampOffset = timestampOffset ?? DateTime.Parse("2014-01-10 08:00:00Z");
LastTimestamp = TimestampOffset;
TimestampWarningThreshold = TimestampOffset
.AddMilliseconds(Precision * Math.Pow(2, MachineIdOffset - 1))
.AddYears(-10);
Clock = clock ?? new SystemClock();
var random = new byte[2];
using (var randomNumberGenerator = RandomNumberGenerator.Create())
{
randomNumberGenerator.GetBytes(random);
}
SequenceEncryptionKey = BitConverter.ToInt16(random, 0) & RandomNumberMask;
}
public override int GetHashCode()
{
int hash = 1;
if (CameraNames.Length != 0)
{
hash ^= CameraNames.GetHashCode();
}
if (InputCameraChannelNames.Length != 0)
{
hash ^= InputCameraChannelNames.GetHashCode();
}
if (TimestampOffset != 0D)
{
hash ^= TimestampOffset.GetHashCode();
}
if (CameraObstaclePerceptionConfDir.Length != 0)
{
hash ^= CameraObstaclePerceptionConfDir.GetHashCode();
}
if (CameraObstaclePerceptionConfFile.Length != 0)
{
hash ^= CameraObstaclePerceptionConfFile.GetHashCode();
}
if (FrameCapacity != 0)
{
hash ^= FrameCapacity.GetHashCode();
}
if (ImageChannelNum != 0)
{
hash ^= ImageChannelNum.GetHashCode();
}
if (EnableUndistortion != false)
{
hash ^= EnableUndistortion.GetHashCode();
}
if (EnableVisualization != false)
{
hash ^= EnableVisualization.GetHashCode();
}
if (OutputObstaclesChannelName.Length != 0)
{
hash ^= OutputObstaclesChannelName.GetHashCode();
}
if (CameraPerceptionVizMessageChannelName.Length != 0)
{
hash ^= CameraPerceptionVizMessageChannelName.GetHashCode();
}
if (PrefusedChannelName.Length != 0)
{
hash ^= PrefusedChannelName.GetHashCode();
}
if (DefaultCameraPitch != 0D)
{
hash ^= DefaultCameraPitch.GetHashCode();
}
if (DefaultCameraHeight != 0D)
{
hash ^= DefaultCameraHeight.GetHashCode();
}
if (LaneCalibrationWorkingSensorName.Length != 0)
{
hash ^= LaneCalibrationWorkingSensorName.GetHashCode();
}
if (CalibratorMethod.Length != 0)
{
hash ^= CalibratorMethod.GetHashCode();
}
if (CalibServiceName.Length != 0)
{
hash ^= CalibServiceName.GetHashCode();
}
if (RunCalibService != false)
{
hash ^= RunCalibService.GetHashCode();
}
if (OutputCameraDebugMsg != false)
{
hash ^= OutputCameraDebugMsg.GetHashCode();
}
if (CameraDebugChannelName.Length != 0)
{
hash ^= CameraDebugChannelName.GetHashCode();
}
if (TsDiff != 0D)
{
hash ^= TsDiff.GetHashCode();
}
if (OutputFinalObstacles != false)
{
hash ^= OutputFinalObstacles.GetHashCode();
}
return(hash);
}
