protected void pumpDeliveries() {
assertExecuting();
try {
while (true) {
while (currentBuffer != null) {
if (sender.getCredit() > 0) {
int sent = sender.send(currentBuffer.data, currentBuffer.offset, currentBuffer.length);
currentBuffer.moveHead(sent);
if (currentBuffer.length == 0) {
Delivery current = currentDelivery;
MessageDelivery md = (MessageDelivery) current.getContext();
currentBuffer = null;
currentDelivery = null;
if (qos == QoS.AT_MOST_ONCE) {
current.settle();
} else {
sender.advance();
}
md.fireWatches();
}
} else {
return;
}
}
if (outbound.isEmpty()) {
return;
}
final MessageDelivery md = outbound.removeFirst();
outboundBufferSize -= md.initialSize;
currentBuffer = md.encoded();
if (qos == QoS.AT_MOST_ONCE) {
currentDelivery = sender.delivery(EMPTY_BYTE_ARRAY, 0, 0);
} else {
final byte[] tag = nextTag();
currentDelivery = sender.delivery(tag, 0, tag.length);
}
md.delivery = currentDelivery;
currentDelivery.setContext(md);
}
} finally {
fireWatches();
}
}
