/// <summary>
/// Initializes a new instance of the <see cref="IdGenerator"/> class. The <see cref="DefaultTimeSource"/> is
/// used to retrieve timestamp information.
/// </summary>
/// <param name="generatorId">The Id of the generator.</param>
/// <param name="epoch">The Epoch of the generator.</param>
/// <param name="maskConfig">The <see cref="MaskConfig"/> of the generator.</param>
/// <exception cref="ArgumentNullException">Thrown when maskConfig is null.</exception>
/// <exception cref="InvalidOperationException">Thrown when maskConfig defines a non-63 bit bitmask.</exception>
/// <exception cref="ArgumentOutOfRangeException">
/// Thrown when GeneratorId or Sequence masks are >31 bit, GeneratorId exceeds maximum value or epoch in future.
/// </exception>
public IdGenerator(int generatorId, DateTimeOffset epoch, MaskConfig maskConfig)
: this(generatorId, maskConfig, new DefaultTimeSource(epoch))
{
}
/// <summary>
/// Initializes a new instance of the <see cref="IdGenerator"/> class. The <see cref="DefaultTimeSource"/> is
/// used to retrieve timestamp information.
/// </summary>
/// <param name="generatorId">The Id of the generator.</param>
/// <param name="maskConfig">The <see cref="MaskConfig"/> of the generator.</param>
/// <exception cref="ArgumentNullException">Thrown when maskConfig is null.</exception>
/// <exception cref="InvalidOperationException">Thrown when maskConfig defines a non-63 bit bitmask.</exception>
/// <exception cref="ArgumentOutOfRangeException">
/// Thrown when GeneratorId or Sequence masks are >31 bit, GeneratorId exceeds maximum value or epoch in future.
/// </exception>
public IdGenerator(int generatorId, MaskConfig maskConfig)
: this(generatorId, maskConfig, new DefaultTimeSource(DefaultEpoch))
{
}