/**
* Called from the {@link Receiver} thread to processing any pending loss of packets.
*
* @return number of work items processed.
*/
int processPendingLoss() {
int workCount = 0;
final long changeNumber = endLossChange;
if (changeNumber != lastLossChangeNumber) {
final int termId = lossTermId;
final int termOffset = lossTermOffset;
final int length = lossLength;
UNSAFE
.loadFence(); // LoadLoad required so previous loads don't move past version check below.
if (changeNumber == beginLossChange) {
if (isReliable) {
channelEndpoint.sendNakMessage(
controlAddress, sessionId, streamId, termId, termOffset, length);
nakMessagesSent.orderedIncrement();
} else {
final UnsafeBuffer termBuffer = termBuffers[indexByTerm(initialTermId, termId)];
if (tryFillGap(rawLog.logMetaData(), termBuffer, termId, termOffset, length)) {
lossGapFills.orderedIncrement();
}
}
lastLossChangeNumber = changeNumber;
workCount = 1;
}
}
return workCount;
}
