/// <summary>
/// Initializes a new instance of the <see cref="FixedSizeQueue{T}" /> class.
/// </summary>
public FixedSizeQueue(IEnumerable <T> source)
{
_indexDequeue = 0;
_entries = new FixedSizeBucket <T>(source);
Capacity = _entries.Capacity;
_indexEnqueue = _entries.Count;
_preCount = _indexEnqueue;
}
/// <summary>
/// Initializes a new instance of the <see cref="FixedSizeQueue{T}" /> class.
/// </summary>
/// <param name="capacity">The capacity.</param>
public FixedSizeQueue(int capacity)
{
Capacity = NumericHelper.PopulationCount(capacity) == 1 ? capacity : NumericHelper.NextPowerOf2(capacity);
_preCount = 0;
_indexEnqueue = 0;
_indexDequeue = 0;
_entries = new FixedSizeBucket <T>(Capacity);
}
/// <summary>
/// Initializes a new instance of the <see cref="NeedleBucket{T, TNeedle}" /> class.
/// </summary>
/// <param name = "valueFactory">The delegate that is invoked to do the lazy initialization of the items.</param>
/// <param name="needleFactory">The delegate that is invoked to create a needle</param>
/// <param name="capacity">The capacity.</param>
/// <exception cref="InvalidOperationException"></exception>
/// <exception cref="ArgumentNullException"><paramref name="valueFactory"/> is <c>null</c>.</exception>
public NeedleBucket(Func <T> valueFactory, Func <T, TNeedle> needleFactory, int capacity)
{
if (valueFactory == null)
{
throw new ArgumentNullException(nameof(valueFactory));
}
_needleFactory = needleFactory ?? throw new ArgumentNullException(nameof(needleFactory));
_reservoir = new NeedleReservoir <T, TNeedle>(_needleFactory);
_needleIndexFactory = index => Reservoir.GetNeedle(new ValueFuncClosure <T>(valueFactory).InvokeReturn());
_entries = new FixedSizeBucket <TNeedle>(capacity);
}
/// <summary>
/// Initializes a new instance of the <see cref="NeedleBucket{T, TNeedle}" /> class.
/// </summary>
/// <param name = "valueFactory">The delegate that is invoked to do the lazy initialization of the items.</param>
/// <param name="capacity">The capacity.</param>
public NeedleBucket(Func<T> valueFactory, int capacity)
{
if (valueFactory == null)
{
throw new ArgumentNullException("valueFactory");
}
if (!NeedleHelper.CanCreateNeedle<T, TNeedle>())
{
throw new InvalidOperationException(string.Format(CultureInfo.InvariantCulture, "Unable to find a way to create {0}", typeof(TNeedle).Name));
}
_needleFactory = index => NeedleReservoir<T, TNeedle>.GetNeedle(valueFactory());
_entries = new FixedSizeBucket<TNeedle>(capacity);
_comparer = EqualityComparer<T>.Default;
}
/// <summary>
/// Initializes a new instance of the <see cref="CircularBucket{T}" /> class.
/// </summary>
/// <param name="capacity">The capacity.</param>
public CircularBucket(int capacity)
{
Capacity = NumericHelper.PopulationCount(capacity) == 1 ? capacity : NumericHelper.NextPowerOf2(capacity);
_index = -1;
_entries = new FixedSizeBucket <T>(Capacity);
}