/**
* Called from the {@link Receiver} to send any pending Status Messages.
*
* @return number of work items processed.
*/
int sendPendingStatusMessage() {
int workCount = 0;
if (ACTIVE == status) {
final long changeNumber = endSmChange;
if (changeNumber != lastSmChangeNumber) {
final long smPosition = nextSmPosition;
final int receiverWindowLength = nextSmReceiverWindowLength;
UNSAFE.loadFence(); // LoadLoad required so previous loads don't move past version check
// below.
if (changeNumber == beginSmChange) {
final int termId =
computeTermIdFromPosition(smPosition, positionBitsToShift, initialTermId);
final int termOffset = (int) smPosition & termLengthMask;
channelEndpoint.sendStatusMessage(
controlAddress,
sessionId,
streamId,
termId,
termOffset,
receiverWindowLength,
(byte) 0);
statusMessagesSent.orderedIncrement();
lastSmChangeNumber = changeNumber;
workCount = 1;
}
}
}
return workCount;
}
