/**
* Pops a header from a message. Creates a new Header from the values contained by the message.
*
* @param message message that contains the info to build the header
* @return a header builted from the values of contained by the message
*/
public static DATAHeader pop(Message message) {
DATAHeader header = new DATAHeader(-1, -1);
header.delay = message.popLong();
header.sn = message.popLong();
header.id = message.popInt();
return header;
}
/**
* Pops a header from a message. Creates a new Header from the values contained by the message.
*
* @param message message that contains the info to build the header
* @return a header builted from the values of contained by the message
*/
public static SEQHeader pop(Message message) {
SEQHeader header = new SEQHeader();
header.order = message.popLong();
header.sn = message.popLong();
header.id = message.popInt();
return header;
}
/**
* Deliver a DATA event received from the network.
*
* @param event the event received from the network.
*/
private void reliableDATADeliver(GroupSendableEvent event) {
Message msg = event.getMessage();
long[] uniformInfo = new long[vs.view.length];
for (int i = uniformInfo.length; i > 0; i--) uniformInfo[i - 1] = msg.popLong();
mergeUniformInfo(uniformInfo);
DATAHeader header = DATAHeader.pop(event.getMessage());
log.debug(
"Received DATA message: "
+ header.id
+ ":"
+ header.sn
+ " timestpamp is "
+ timeProvider.currentTimeMillis());
header.setTime(delay[header.id] + timeProvider.currentTimeMillis());
ListContainer container = new ListContainer(event, header);
// add the event to the RECEIVED list...
R.addLast(container);
// ... and set a timer to be delivered later, according to the delay that came with the message
setTimer(container, delay[header.id], vs.id);
// Deliver event to the upper layer (spontaneous order)
try {
event.go();
} catch (AppiaEventException e) {
e.printStackTrace();
}
}
private void handleUniformInfo(UniformInfoEvent event) {
log.debug(
"Received UniformInfo from " + event.orig + ". Uniformity information table now is: ");
Message msg = event.getMessage();
long[] uniformInfo = new long[vs.view.length];
for (int i = uniformInfo.length; i > 0; i--) uniformInfo[i - 1] = msg.popLong();
mergeUniformInfo(uniformInfo);
if (log.isDebugEnabled())
for (int i = 0; i < lastOrderList.length; i++)
log.debug("RANK :" + i + " | LAST_ORDER: " + lastOrderList[i]);
deliverUniform();
}
/** Deliver a SEQUENCER message received from the network. */
private void reliableSEQDeliver(SeqOrderEvent event) {
Message msg = event.getMessage();
long[] uniformInfo = new long[vs.view.length];
for (int i = uniformInfo.length; i > 0; i--) uniformInfo[i - 1] = msg.popLong();
mergeUniformInfo(uniformInfo);
SEQHeader header = SEQHeader.pop(event.getMessage());
log.debug(
"["
+ ls.my_rank
+ "] Received SEQ message "
+ header.id
+ ":"
+ header.sn
+ " timestamp is "
+ timeProvider.currentTimeMillis());
lastOrderList[ls.my_rank] = header.order;
newUniformInfo = true;
// add it to the sequencer list
S.add(new ListSEQContainer(header, timeProvider.currentTimeMillis()));
log.debug("Received SEQ from " + event.orig + " at time " + timeProvider.currentTimeMillis());
// and tries to deliver messages that already have the order
deliverRegular();
deliverUniform();
}
/**
* Clears the values of the VC in the header of a message.
*
* @param omsg the message whose header will be cleared.
*/
private void clearVC(Message omsg) {
for (int i = 0; i < VC.length; i++) omsg.popLong();
}
/**
* Extracts the VC from the header of a message.
*
* @param omsg the message from where the VC will be extracted.
* @param VCm array where the values of the VC for the given message will be stored.
*/
private void extractVCm(Message omsg, long[] VCm) {
for (int i = VCm.length - 1; i >= 0; i--) VCm[i] = omsg.popLong();
}