public T[] Rent(int minSize)
{
if (minSize < 0)
{
throw new ArgumentOutOfRangeException(nameof(minSize));
}
if (minSize == 0)
{
return(Emptry);
}
var bucketIdx = BucketHelper.GetBucketIndex(minSize);
if (bucketIdx < 0)
{
return(new T[minSize]);
}
var buff = _buckets[bucketIdx];
var returnBuff = buff.TryPop();
if (returnBuff != null)
{
return(returnBuff);
}
return(new T[minSize]);
}
public ArrayPool()
{
_buckets = new SlotBuff[BucketHelper.BucketCount];
for (var i = 0; i < BucketHelper.BucketCount; ++i)
{
var maxSlotSize = BucketHelper.GetMaxSizeForBucket(i);
var slotBuff = new SlotBuff();
_buckets[i] = slotBuff;
for (var j = 0; j < SLOT_COUNT; ++j)
{
if (!slotBuff.TryPush(new T[maxSlotSize]))
{
throw new InvalidOperationException();
}
}
}
}
public void Return(T[] buff)
{
if (buff == null)
{
throw new ArgumentNullException(nameof(buff));
}
if (buff.Length == 0)
{
return;
}
var bucketIndex = BucketHelper.GetBucketIndex(buff.Length);
if (bucketIndex < 0)
{
return;
}
var buffer = _buckets[bucketIndex];
buffer.TryPush(buff);
}
