public override OfferStatusCodes Offer(T element)
{
OfferStatusCodes rval = OfferStatusCodes.SUCCESS;
long head = ReadCounter;
long tail = WriteCounter;
long size = (tail - head);
if (size >= SPACED_SIZE)
{
return(OfferStatusCodes.FULL);
}
if (Interlocked.CompareExchange(ref WriteCounter, tail + OFFSET, tail) == tail)
{
int index = (int)(tail & SPACED_MASK);
Interlocked.Exchange(ref buffer[index], element);
rval = OfferStatusCodes.SUCCESS;
}
else
{
rval = OfferStatusCodes.FAILED;
}
// TODO: a bit of a refactor to get rid of multiple return statements through the function.
return(rval);
}
public override OfferStatusCodes Offer(T element)
{
OfferStatusCodes result = 0;
// TODO: Why bother assigning to this other variable because it's still just a reference to the original Array.
Buffer <T>[] buffers = table;
int mask = buffers.Length - 1;
Buffer <T> buffer = buffers[probe.Value & mask];
bool uncontended = true;
if ((buffers == null) || (mask < 0) || (buffer == null))
{
ExpandOrRetry(element, uncontended);
}
else
{
result = buffer.Offer(element);
uncontended = (result != OfferStatusCodes.FAILED);
if (!uncontended)
{
ExpandOrRetry(element, uncontended);
}
}
return(result);
}
