///<summary>
/// Serialise publishers in sequence and set cursor to latest available sequence.
///</summary>
///<param name="sequence">sequence to be applied</param>
///<param name="cursor">cursor to serialise against.</param>
///<param name="batchSize">batchSize of the sequence.</param>
public override void SerialisePublishing(long sequence, Sequence cursor, long batchSize)
{
var spinWait = default(SpinWait);
while (sequence - cursor.Value > _pendingPublication.Length)
{
spinWait.SpinOnce();
}
long expectedSequence = sequence - batchSize;
for (long pendingSequence = expectedSequence + 1; pendingSequence <= sequence; pendingSequence++)
{
_pendingPublication.WriteCompilerOnlyFence((int)pendingSequence & _pendingMask, pendingSequence);
}
_pendingPublication.WriteFullFence((int)sequence & _pendingMask, sequence);
long cursorSequence = cursor.Value;
if (cursorSequence >= sequence)
{
return;
}
expectedSequence = Math.Max(expectedSequence, cursorSequence);
long nextSequence = expectedSequence + 1;
while (cursor.CompareAndSet(expectedSequence, nextSequence))
{
expectedSequence = nextSequence;
nextSequence++;
if (_pendingPublication.ReadFullFence((int)nextSequence & _pendingMask) != nextSequence)
{
break;
}
}
}
public void WriteCompilerOnlyFenceChangesInitialValue()
{
_volatile.WriteCompilerOnlyFence(0, NewValue);
Assert.AreEqual(NewValue, _volatile.ReadUnfenced(0));
}
