/// <summary>
/// Ensures that the underlying id queue can hold at least a certain number of ids.
/// </summary>
/// <param name="count">Number of elements to preallocate space for in the available ids queue.</param>
/// <param name="pool">Pool to pull resized spans from.</param>
public void EnsureCapacity(int count, IUnmanagedMemoryPool pool)
{
if (!availableIds.Allocated)
{
//If this was disposed, we must explicitly rehydrate it.
this = new IdPool(count, pool);
}
else
{
if (availableIds.Length < count)
{
InternalResize(count, pool);
}
}
}
/// <summary>
/// Resizes the underlying buffer to the smallest size required to hold the given count and the current available id count.
/// </summary>
/// <param name="count">Number of elements to guarantee space for in the available ids queue.</param>
public void Resize(int count, IUnmanagedMemoryPool pool)
{
if (!availableIds.Allocated)
{
//If this was disposed, we must explicitly rehydrate it.
this = new IdPool(count, pool);
}
else
{
var targetLength = BufferPool.GetCapacityForCount <int>(Math.Max(count, availableIdCount));
if (availableIds.Length != targetLength)
{
InternalResize(targetLength, pool);
}
}
}
public PowerPool(int power, int minimumBlockSize, int expectedPooledCount)
{
Power = power;
SuballocationSize = 1 << power;
BlockSize = Math.Max(SuballocationSize, minimumBlockSize);
IdPool<Array<int>>.Create(new PassthroughArrayPool<int>(), expectedPooledCount, out Slots);
SuballocationsPerBlock = BlockSize / SuballocationSize;
SuballocationsPerBlockShift = SpanHelper.GetContainingPowerOf2(SuballocationsPerBlock);
SuballocationsPerBlockMask = (1 << SuballocationsPerBlockShift) - 1;
Blocks = new Block[1];
BlockCount = 0;
#if DEBUG
outstandingIds = new HashSet<int>();
#if LEAKDEBUG
outstandingAllocators = new Dictionary<string, HashSet<int>>();
#endif
#endif
}
public static void Create <TPool>(TPool pool, int initialCapacity, out IdPool <TSpan> idPool) where TPool : IMemoryPool <int, TSpan>
{
idPool.nextIndex = 0;
QuickList <int, TSpan> .Create(pool, initialCapacity, out idPool.AvailableIds);
}
public static void Create <TPool>(TPool pool, int initialCapacity, out IdPool <TSpan> idPool) where TPool : IMemoryPool <int, TSpan>
{
idPool.nextIndex = 0;
idPool.availableIdCount = 0;
pool.Take(initialCapacity, out idPool.availableIds);
}
