#include "ByteBuffer.h"
#include "Abort.h"
#include "CommitPart.h"
-
+#include "ArbitrationRound.h"
+#include "TransactionPart.h"
+#include "Commit.h"
+#include "RejectedMessage.h"
+#include "SlotIndexer.h"
+#include <stdlib.h>
+
+int compareInt64(const void * a, const void *b) {
+ const int64_t * pa = (const int64_t *) a;
+ const int64_t * pb = (const int64_t *) b;
+ if (*pa < *pb)
+ return -1;
+ else if (*pa > *pb)
+ return 1;
+ else
+ return 0;
+}
Table::Table(IoTString *baseurl, IoTString *password, int64_t _localMachineId, int listeningPort) :
buffer(NULL),
speculatedKeyValueTable = new Hashtable<IoTString *, KeyValue *>();
pendingTransactionSpeculatedKeyValueTable = new Hashtable<IoTString *, KeyValue *>();
liveNewKeyTable = new Hashtable<IoTString *, NewKey *>();
- lastMessageTable = new Hashtable<int64_t, Pair<int64_t, Liveness *> >();
+ lastMessageTable = new Hashtable<int64_t, Pair<int64_t, Liveness *> * >();
rejectedMessageWatchVectorTable = new Hashtable<int64_t, Hashset<RejectedMessage *> * >();
arbitratorTable = new Hashtable<IoTString *, int64_t>();
- liveAbortTable = new Hashtable<Pair<int64_t, int64_t>, Abort *, uintptr_t, 0, pairHashFunction, pairEquals>();
- newTransactionParts = new Hashtable<int64_t, Hashtable<Pair<int64_t, int32_t>, TransactionPart *, uintptr_t, 0, pairHashFunction, pairEquals> *>();
- newCommitParts = new Hashtable<int64_t, Hashtable<Pair<int64_t, int32_t>, CommitPart *, uintptr_t, 0, pairHashFunction, pairEquals> *>();
+ liveAbortTable = new Hashtable<Pair<int64_t, int64_t> *, Abort *, uintptr_t, 0, pairHashFunction, pairEquals>();
+ newTransactionParts = new Hashtable<int64_t, Hashtable<Pair<int64_t, int32_t> *, TransactionPart *, uintptr_t, 0, pairHashFunction, pairEquals> *>();
+ newCommitParts = new Hashtable<int64_t, Hashtable<Pair<int64_t, int32_t> *, CommitPart *, uintptr_t, 0, pairHashFunction, pairEquals> *>();
lastArbitratedTransactionNumberByArbitratorTable = new Hashtable<int64_t, int64_t>();
liveTransactionBySequenceNumberTable = new Hashtable<int64_t, Transaction *>();
- liveTransactionByTransactionIdTable = new Hashtable<Pair<int64_t, int64_t>, Transaction *, uintptr_t, 0, pairHashFunction, pairEquals>();
- liveCommitsTable = new Hashtable<int64_t, Hashtable<int64_t, Commit *> >();
+ liveTransactionByTransactionIdTable = new Hashtable<Pair<int64_t, int64_t> *, Transaction *, uintptr_t, 0, pairHashFunction, pairEquals>();
+ liveCommitsTable = new Hashtable<int64_t, Hashtable<int64_t, Commit *> * >();
liveCommitsByKeyTable = new Hashtable<IoTString *, Commit *>();
lastCommitSeenSequenceNumberByArbitratorTable = new Hashtable<int64_t, int64_t>();
rejectedSlotVector = new Vector<int64_t>();
transactionPartsSent = new Hashtable<Transaction *, Vector<int32_t> *>();
outstandingTransactionStatus = new Hashtable<int64_t, TransactionStatus *>();
liveAbortsGeneratedByLocal = new Hashtable<int64_t, Abort *>();
- offlineTransactionsCommittedAndAtServer = new Hashset<Pair<int64_t, int64_t>, uintptr_t, 0, pairHashFunction, pairEquals>();
- localCommunicationTable = new Hashtable<int64_t, Pair<IoTString *, int32_t> >();
+ offlineTransactionsCommittedAndAtServer = new Hashset<Pair<int64_t, int64_t> *, uintptr_t, 0, pairHashFunction, pairEquals>();
+ localCommunicationTable = new Hashtable<int64_t, Pair<IoTString *, int32_t> *>();
lastTransactionSeenFromMachineFromServer = new Hashtable<int64_t, int64_t>();
pendingSendArbitrationRounds = new Vector<ArbitrationRound *>();
lastArbitrationDataLocalSequenceNumberSeenFromArbitrator = new Hashtable<int64_t, int64_t>();
}
void Table::addLocalCommunication(int64_t arbitrator, IoTString *hostName, int portNumber) {
- localCommunicationTable->put(arbitrator, Pair<IoTString *, int32_t>(hostName, portNumber));
+ localCommunicationTable->put(arbitrator, new Pair<IoTString *, int32_t>(hostName, portNumber));
}
int64_t Table::getArbitrator(IoTString *key) {
updateLiveTransactionsAndStatus();
return true;
} catch (Exception *e) {
- for (int64_t m : localCommunicationTable->keySet()) {
+ SetIterator<int64_t, Pair<IoTString *, int32_t> *> *kit = getKeyIterator(localCommunicationTable);
+ while (kit->hasNext()) {
+ int64_t m = kit->next();
updateFromLocal(m);
}
+ delete kit;
}
return false;
Hashset<int64_t> *arbitratorTriedAndFailed = new Hashset<int64_t>();
uint size = pendingTransactionQueue->size();
uint oldindex = 0;
- for(int iter = 0; iter < size; iter++) {
+ for (int iter = 0; iter < size; iter++) {
Transaction *transaction = pendingTransactionQueue->get(iter);
pendingTransactionQueue->set(oldindex++, pendingTransactionQueue->get(iter));
-
+
if (arbitratorTriedAndFailed->contains(transaction->getArbitrator())) {
// Already contacted this client so ignore all attempts to contact this client
// to preserve ordering for arbitrator
}
}
}
+ pendingTransactionQueue->setSize(oldindex);
}
- pendingTransactionQueue->setSize(oldindex);
-
+
updateLiveStateFromLocal();
return transactionStatus;
}
}
- for (Transaction *transaction : lastTransactionPartsSent->keySet()) {
+ SetIterator<Transaction *, Vector<int> *> *trit = getKeyIterator(lastTransactionPartsSent);
+ while (trit->hasNext()) {
+ Transaction *transaction = trit->next();
transaction->resetServerFailure();
// Update which transactions parts still need to be sent
transaction->removeSentParts(lastTransactionPartsSent->get(transaction));
pendingTransactionQueue->remove(transaction);
}
}
+ delete trit;
} else {
newSlots = sendSlotsReturn.getThird();
bool isInserted = false;
}
// Process each entry in the slot
- for (Entry *entry : s->getEntries()) {
+ Vector<Entry *> *ventries = s->getEntries();
+ uint vesize = ventries->size();
+ for (uint vei = 0; vei < vesize; vei++) {
+ Entry *entry = ventries->get(vei);
if (entry->getType() == TypeLastMessage) {
LastMessage *lastMessage = (LastMessage *)entry;
if ((lastMessage->getMachineID() == localMachineId) && (lastMessage->getSequenceNumber() == lastSlotAttemptedToSend->getSequenceNumber())) {
}
}
- for (Transaction *transaction : lastTransactionPartsSent->keySet()) {
+ SetIterator<Transaction *, Vector<int> *> *trit = getKeyIterator(lastTransactionPartsSent);
+ while (trit->hasNext()) {
+ Transaction *transaction = trit->next();
transaction->resetServerFailure();
// Update which transactions parts still need to be sent
}
}
}
+ delete trit;
}
}
- for (Transaction *transaction : lastTransactionPartsSent->keySet()) {
+ SetIterator<Transaction *, Vector<int> *> *trit = getKeyIterator(lastTransactionPartsSent);
+ while (trit->hasNext()) {
+ Transaction *transaction = trit->next();
transaction->resetServerFailure();
// Set the transaction sequence number back to nothing
if (!transaction->didSendAPartToServer()) {
transaction->setSequenceNumber(-1);
}
}
+ delete trit;
if (sendSlotsReturn.getThird()->length() != 0) {
// insert into the local block chain
}
// Process each entry in the slot
- for (Entry *entry : s->getEntries()) {
-
+ Vector<Entry *> *entries = s->getEntries();
+ uint eSize = entries->size();
+ for(uint ei=0; ei < eSize; ei++) {
+ Entry * entry = entries->get(ei);
+
if (entry->getType() == TypeLastMessage) {
LastMessage *lastMessage = (LastMessage *)entry;
if ((lastMessage->getMachineID() == localMachineId) && (lastMessage->getSequenceNumber() == lastSlotAttemptedToSend->getSequenceNumber())) {
}
}
- for (Transaction *transaction : lastTransactionPartsSent->keySet()) {
+ SetIterator<Transaction *, Vector<int> *> *trit = getKeyIterator(lastTransactionPartsSent);
+ while (trit->hasNext()) {
+ Transaction *transaction = trit->next();
transaction->resetServerFailure();
// Update which transactions parts still need to be sent
}
}
}
+ delete trit;
} else {
- for (Transaction *transaction : lastTransactionPartsSent->keySet()) {
+ SetIterator<Transaction *, Vector<int> *> *trit = getKeyIterator(lastTransactionPartsSent);
+ while (trit->hasNext()) {
+ Transaction *transaction = trit->next();
transaction->resetServerFailure();
// Set the transaction sequence number back to nothing
if (!transaction->didSendAPartToServer()) {
transaction->setSequenceNumber(-1);
}
}
+ delete trit;
}
// insert into the local block chain
if (needsResize) {
// Reset which transaction to send
- for (Transaction *transaction : transactionPartsSent->keySet()) {
+ SetIterator<Transaction *, Vector<int> *> *trit = getKeyIterator(transactionPartsSent);
+ while (trit->hasNext()) {
+ Transaction *transaction = trit->next();
transaction->resetNextPartToSend();
// Set the transaction sequence number back to nothing
transaction->setSequenceNumber(-1);
}
}
+ delete trit;
// Clear the sent data since we are trying again
pendingSendArbitrationEntriesToDelete->clear();
lastInsertedNewKey = insertedNewKey;
lastNewSize = newSize;
lastNewKey = newKey;
- lastTransactionPartsSent = new Hashtable<Transaction *, Vector<int32_t> * >(transactionPartsSent);
+ lastTransactionPartsSent = transactionPartsSent->clone();
lastPendingSendArbitrationEntriesToDelete = new Vector<Entry *>(pendingSendArbitrationEntriesToDelete);
-
ThreeTuple<bool, bool, Array<Slot *> *> sendSlotsReturn = sendSlotsToServer(slot, newSize, newKey != NULL);
if (sendSlotsReturn.getFirst()) {
}
// Remove the aborts and commit parts that were sent from the pending to send queue
- for (Iterator<ArbitrationRound *> *iter = pendingSendArbitrationRounds->iterator(); iter->hasNext(); ) {
- ArbitrationRound *round = iter->next();
+ uint size = pendingSendArbitrationRounds->size();
+ uint oldcount = 0;
+ for (uint i = 0; i < size; i++) {
+ ArbitrationRound *round = pendingSendArbitrationRounds->get(i);
round->removeParts(pendingSendArbitrationEntriesToDelete);
- if (round->isDoneSending()) {
+ if (!round->isDoneSending()) {
// Sent all the parts
- iter->remove();
+ pendingSendArbitrationRounds->set(oldcount++,
+ pendingSendArbitrationRounds->get(i));
}
}
+ pendingSendArbitrationRounds->setSize(oldcount);
- for (Transaction *transaction : transactionPartsSent->keySet()) {
+ SetIterator<Transaction *, Vector<int> *> *trit = getKeyIterator(transactionPartsSent);
+ while (trit->hasNext()) {
+ Transaction *transaction = trit->next();
transaction->resetServerFailure();
// Update which transactions parts still need to be sent
pendingTransactionQueue->remove(transaction);
}
}
+ delete trit;
} else {
// Reset which transaction to send
- for (Transaction *transaction : transactionPartsSent->keySet()) {
+ SetIterator<Transaction *, Vector<int> *> *trit = getKeyIterator(transactionPartsSent);
+ while (trit->hasNext()) {
+ Transaction *transaction = trit->next();
transaction->resetNextPartToSend();
// Set the transaction sequence number back to nothing
transaction->setSequenceNumber(-1);
}
}
+ delete trit;
}
// Clear the sent data in preparation for next send
}
} catch (ServerException *e) {
-
- if (e->getType() != ServerException->TypeInputTimeout) {
+ if (e->getType() != ServerException_TypeInputTimeout) {
// Nothing was able to be sent to the server so just clear these data structures
- for (Transaction *transaction : transactionPartsSent->keySet()) {
+ SetIterator<Transaction *, Vector<int> *> *trit = getKeyIterator(transactionPartsSent);
+ while (trit->hasNext()) {
+ Transaction *transaction = trit->next();
transaction->resetNextPartToSend();
// Set the transaction sequence number back to nothing
transaction->setSequenceNumber(-1);
}
}
+ delete trit;
} else {
// There was a partial send to the server
hadPartialSendToServer = true;
// Nothing was able to be sent to the server so just clear these data structures
- for (Transaction *transaction : transactionPartsSent->keySet()) {
+ SetIterator<Transaction *, Vector<int> *> *trit = getKeyIterator(transactionPartsSent);
+ while (trit->hasNext()) {
+ Transaction *transaction = trit->next();
transaction->resetNextPartToSend();
transaction->setServerFailure();
}
+ delete trit;
}
pendingSendArbitrationEntriesToDelete->clear();
}
bool Table::updateFromLocal(int64_t machineId) {
- Pair<IoTString *, int32_t> localCommunicationInformation = localCommunicationTable->get(machineId);
- if (localCommunicationInformation == NULL) {
- // Cant talk to that device locally so do nothing
+ if (!localCommunicationTable->contains(machineId))
return false;
- }
+
+ Pair<IoTString *, int32_t> * localCommunicationInformation = localCommunicationTable->get(machineId);
// Get the size of the send data
int sendDataSize = sizeof(int32_t) + sizeof(int64_t);
int64_t lastArbitrationDataLocalSequenceNumber = (int64_t) -1;
- if (lastArbitrationDataLocalSequenceNumberSeenFromArbitrator->get(machineId) != NULL) {
+ if (lastArbitrationDataLocalSequenceNumberSeenFromArbitrator->contains(machineId)) {
lastArbitrationDataLocalSequenceNumber = lastArbitrationDataLocalSequenceNumberSeenFromArbitrator->get(machineId);
}
bbEncode->putInt(0);
// Send by local
- Array<char> *returnData = cloud->sendLocalData(sendData, localSequenceNumber, localCommunicationInformation.getFirst(), localCommunicationInformation.getSecond());
+ Array<char> *returnData = cloud->sendLocalData(sendData, localSequenceNumber, localCommunicationInformation->getFirst(), localCommunicationInformation->getSecond());
localSequenceNumber++;
if (returnData == NULL) {
for (int i = 0; i < numberOfEntries; i++) {
char type = bbDecode->get();
if (type == TypeAbort) {
- Abort *abort = (Abort*)Abort_decode(NULL, bbDecode);
+ Abort *abort = (Abort *)Abort_decode(NULL, bbDecode);
processEntry(abort);
} else if (type == TypeCommitPart) {
- CommitPart *commitPart = (CommitPart*)CommitPart_decode(NULL, bbDecode);
+ CommitPart *commitPart = (CommitPart *)CommitPart_decode(NULL, bbDecode);
processEntry(commitPart);
}
}
Pair<bool, bool> Table::sendTransactionToLocal(Transaction *transaction) {
// Get the devices local communications
- Pair<IoTString *, int32_t> localCommunicationInformation = localCommunicationTable->get(transaction->getArbitrator());
-
- if (localCommunicationInformation == NULL) {
- // Cant talk to that device locally so do nothing
+ if (!localCommunicationTable->contains(transaction->getArbitrator()))
return Pair<bool, bool>(true, false);
- }
+
+ Pair<IoTString *, int32_t> * localCommunicationInformation = localCommunicationTable->get(transaction->getArbitrator());
// Get the size of the send data
int sendDataSize = sizeof(int32_t) + sizeof(int64_t);
- for (TransactionPart *part : transaction->getParts()->values()) {
- sendDataSize += part->getSize();
+ {
+ Vector<TransactionPart *> * tParts = transaction->getParts();
+ uint tPartsSize = tParts->size();
+ for (uint i = 0; i < tPartsSize; i++) {
+ TransactionPart * part = tParts->get(i);
+ sendDataSize += part->getSize();
+ }
}
int64_t lastArbitrationDataLocalSequenceNumber = (int64_t) -1;
- if (lastArbitrationDataLocalSequenceNumberSeenFromArbitrator->get(transaction->getArbitrator()) != NULL) {
+ if (lastArbitrationDataLocalSequenceNumberSeenFromArbitrator->contains(transaction->getArbitrator())) {
lastArbitrationDataLocalSequenceNumber = lastArbitrationDataLocalSequenceNumberSeenFromArbitrator->get(transaction->getArbitrator());
}
// Make the send data size
Array<char> *sendData = new Array<char>(sendDataSize);
- ByteBuffer *bbEncode = ByteBuffer.wrap(sendData);
+ ByteBuffer *bbEncode = ByteBuffer_wrap(sendData);
// Encode the data
bbEncode->putLong(lastArbitrationDataLocalSequenceNumber);
bbEncode->putInt(transaction->getParts()->size());
- for (TransactionPart *part : transaction->getParts()->values()) {
- part->encode(bbEncode);
+ {
+ Vector<TransactionPart *> * tParts = transaction->getParts();
+ uint tPartsSize = tParts->size();
+ for (uint i = 0; i < tPartsSize; i++) {
+ TransactionPart * part = tParts->get(i);
+ part->encode(bbEncode);
+ }
}
-
// Send by local
- Array<char> *returnData = cloud->sendLocalData(sendData, localSequenceNumber, localCommunicationInformation.getFirst(), localCommunicationInformation.getSecond());
+ Array<char> *returnData = cloud->sendLocalData(sendData, localSequenceNumber, localCommunicationInformation->getFirst(), localCommunicationInformation->getSecond());
localSequenceNumber++;
if (returnData == NULL) {
for (int i = 0; i < numberOfEntries; i++) {
char type = bbDecode->get();
if (type == TypeAbort) {
- Abort *abort = (Abort*)Abort_decode(NULL, bbDecode);
+ Abort *abort = (Abort *)Abort_decode(NULL, bbDecode);
if ((abort->getTransactionMachineId() == localMachineId) && (abort->getTransactionClientLocalSequenceNumber() == transaction->getClientLocalSequenceNumber())) {
foundAbort = true;
processEntry(abort);
} else if (type == TypeCommitPart) {
- CommitPart *commitPart = (CommitPart*)CommitPart_decode(NULL, bbDecode);
+ CommitPart *commitPart = (CommitPart *)CommitPart_decode(NULL, bbDecode);
processEntry(commitPart);
}
}
updateLiveStateFromLocal();
if (couldArbitrate) {
- TransactionStatus status = transaction->getTransactionStatus();
+ TransactionStatus * status = transaction->getTransactionStatus();
if (didCommit) {
status->setStatus(TransactionStatus_StatusCommitted);
} else {
status->setStatus(TransactionStatus_StatusAborted);
}
} else {
- TransactionStatus status = transaction->getTransactionStatus();
+ TransactionStatus * status = transaction->getTransactionStatus();
if (foundAbort) {
status->setStatus(TransactionStatus_StatusAborted);
} else {
}
Array<char> *Table::acceptDataFromLocal(Array<char> *data) {
-
// Decode the data
ByteBuffer *bbDecode = ByteBuffer_wrap(data);
int64_t lastArbitratedSequenceNumberSeen = bbDecode->getLong();
Transaction *transaction = new Transaction();
for (int i = 0; i < numberOfParts; i++) {
bbDecode->get();
- TransactionPart *newPart = (TransactionPart)TransactionPart.decode(NULL, bbDecode);
+ TransactionPart *newPart = (TransactionPart *)TransactionPart_decode(NULL, bbDecode);
transaction->addPartDecode(newPart);
}
// Transaction was sent to the server so keep track of it to prevent double commit
if (transaction->getSequenceNumber() != -1) {
- offlineTransactionsCommittedAndAtServer->add(transaction->getId());
+ offlineTransactionsCommittedAndAtServer->add(new Pair<int64_t, int64_t>(transaction->getId()));
}
}
Vector<Entry *> *unseenArbitrations = new Vector<Entry *>();
// Get the aborts to send back
- Vector<int64_t> *abortLocalSequenceNumbers = new Vector<int64_t>(liveAbortsGeneratedByLocal->keySet());
- Collections->sort(abortLocalSequenceNumbers);
- for (int64_t localSequenceNumber : abortLocalSequenceNumbers) {
+ Vector<int64_t> *abortLocalSequenceNumbers = new Vector<int64_t>();
+ {
+ SetIterator<int64_t, Abort *> *abortit = getKeyIterator(liveAbortsGeneratedByLocal);
+ while(abortit->hasNext())
+ abortLocalSequenceNumbers->add(abortit->next());
+ delete abortit;
+ }
+
+ qsort(abortLocalSequenceNumbers->expose(), abortLocalSequenceNumbers->size(), sizeof(int64_t), compareInt64);
+
+ uint asize = abortLocalSequenceNumbers->size();
+ for(uint i=0; i<asize; i++) {
+ int64_t localSequenceNumber = abortLocalSequenceNumbers->get(i);
if (localSequenceNumber <= lastArbitratedSequenceNumberSeen) {
continue;
}
-
+
Abort *abort = liveAbortsGeneratedByLocal->get(localSequenceNumber);
unseenArbitrations->add(abort);
returnDataSize += abort->getSize();
// Get the commits to send back
Hashtable<int64_t, Commit *> *commitForClientTable = liveCommitsTable->get(localMachineId);
if (commitForClientTable != NULL) {
- Vector<int64_t> *commitLocalSequenceNumbers = new Vector<int64_t>(commitForClientTable->keySet());
- Collections->sort(commitLocalSequenceNumbers);
-
- for (int64_t localSequenceNumber : commitLocalSequenceNumbers) {
+ Vector<int64_t> *commitLocalSequenceNumbers = new Vector<int64_t>();
+ {
+ SetIterator<int64_t, Commit *> *commitit = getKeyIterator(commitForClientTable);
+ while(commitit->hasNext())
+ commitLocalSequenceNumbers->add(commitit->next());
+ delete commitit;
+ }
+ qsort(commitLocalSequenceNumbers->expose(), commitLocalSequenceNumbers->size(), sizeof(int64_t), compareInt64);
+
+ uint clsSize = commitLocalSequenceNumbers->size();
+ for(uint clsi = 0; clsi < clsSize; clsi++) {
+ int64_t localSequenceNumber = commitLocalSequenceNumbers->get(clsi);
Commit *commit = commitForClientTable->get(localSequenceNumber);
if (localSequenceNumber <= lastArbitratedSequenceNumberSeen) {
continue;
}
- unseenArbitrations->addAll(commit->getParts()->values());
-
- for (CommitPart *commitPart : commit->getParts()->values()) {
- returnDataSize += commitPart->getSize();
+ {
+ Vector<CommitPart *> * parts = commit->getParts();
+ uint nParts = parts->size();
+ for(uint i=0; i<nParts; i++) {
+ CommitPart * commitPart = parts->get(i);
+ unseenArbitrations->add(commitPart);
+ returnDataSize += commitPart->getSize();
+ }
}
}
}
bbEncode->putInt(unseenArbitrations->size());
uint size = unseenArbitrations->size();
- for(uint i = 0; i< size; i++) {
- Entry * entry = unseenArbitrations->get(i);
+ for (uint i = 0; i < size; i++) {
+ Entry *entry = unseenArbitrations->get(i);
entry->encode(bbEncode);
}
if (hadPartialSendToServer) {
bool isInserted = false;
- uint size = s->size();
- for(uint i=0; i < size; i++) {
+ uint size = array->length();
+ for (uint i = 0; i < size; i++) {
Slot *s = array->get(i);
if ((s->getSequenceNumber() == slot->getSequenceNumber()) && (s->getMachineID() == localMachineId)) {
isInserted = true;
}
}
- for(uint i=0; i < size; i++) {
+ for (uint i = 0; i < size; i++) {
Slot *s = array->get(i);
if (isInserted) {
break;
}
// Process each entry in the slot
- for (Entry *entry : s->getEntries()) {
+ Vector<Entry *> *entries = s->getEntries();
+ uint eSize = entries->size();
+ for(uint ei=0; ei < eSize; ei++) {
+ Entry * entry = entries->get(ei);
if (entry->getType() == TypeLastMessage) {
LastMessage *lastMessage = (LastMessage *)entry;
ThreeTuple<bool, int32_t, bool> Table::fillSlot(Slot *slot, bool resize, NewKey *newKeyEntry) {
int newSize = 0;
if (liveSlotCount > bufferResizeThreshold) {
- resize = true; //Resize is forced
+ resize = true;//Resize is forced
}
if (resize) {
// Clear the transactions, aborts and commits that were sent previously
transactionPartsSent->clear();
pendingSendArbitrationEntriesToDelete->clear();
-
- for (ArbitrationRound *round : pendingSendArbitrationRounds) {
+ uint size = pendingSendArbitrationRounds->size();
+ for (uint i = 0; i < size; i++) {
+ ArbitrationRound *round = pendingSendArbitrationRounds->get(i);
bool isFull = false;
round->generateParts();
Vector<Entry *> *parts = round->getParts();
// Insert pending arbitration data
- for (Entry *arbitrationData : parts) {
+ uint vsize = parts->size();
+ for (uint vi = 0; vi < vsize; vi++) {
+ Entry *arbitrationData = parts->get(vi);
// If it is an abort then we need to set some information
- if (arbitrationData instanceof Abort) {
+ if (arbitrationData->getType() == TypeAbort) {
((Abort *)arbitrationData)->setSequenceNumber(slot->getSequenceNumber());
}
* there is already a sufficient entry in the queue (e->g->,
* equalsto value of true and same sequence number)-> */
- int64_t old_seqn = rejectedSlotVector->firstElement();
+ int64_t old_seqn = rejectedSlotVector->get(0);
if (rejectedSlotVector->size() > Table_REJECTED_THRESHOLD) {
int64_t new_seqn = rejectedSlotVector->lastElement();
RejectedMessage *rm = new RejectedMessage(s, s->getSequenceNumber(), localMachineId, old_seqn, new_seqn, false);
// Mandatory Rescue
for (; currentSequenceNumber < threshold; currentSequenceNumber++) {
- Slot previousSlot = buffer->getSlot(currentSequenceNumber);
+ Slot * previousSlot = buffer->getSlot(currentSequenceNumber);
// Push slot number forward
if (!seenLiveSlot) {
oldestLiveSlotSequenceNumver = currentSequenceNumber;
Vector<Entry *> *liveEntries = previousSlot->getLiveEntries(resize);
// Iterate over all the live entries and try to rescue them
- for (Entry *liveEntry : liveEntries) {
+ uint lESize = liveEntries->size();
+ for (uint i=0; i< lESize; i++) {
+ Entry * liveEntry = liveEntries->get(i);
if (slot->hasSpace(liveEntry)) {
// Enough space to rescue the entry
slot->addEntry(liveEntry);
continue;
seenliveslot = true;
Vector<Entry *> *liveentries = prevslot->getLiveEntries(resize);
- for (Entry *liveentry : liveentries) {
+ uint lESize = liveentries->size();
+ for (uint i=0; i< lESize; i++) {
+ Entry * liveentry = liveentries->get(i);
if (s->hasSpace(liveentry))
s->addEntry(liveentry);
else {
skipcount++;
if (skipcount > Table_SKIP_THRESHOLD)
- break search;
+ goto donesearch;
}
}
}
+ donesearch:
+ ;
}
/**
checkHMACChain(indexer, newSlots);
// Set to keep track of messages from clients
- Hashset<int64_t> *machineSet = new Hashset<int64_t>(lastMessageTable->keySet());
+ Hashset<int64_t> *machineSet = new Hashset<int64_t>();
+ {
+ SetIterator<int64_t, Pair<int64_t, Liveness *> *> * lmit=getKeyIterator(lastMessageTable);
+ while(lmit->hasNext())
+ machineSet->add(lmit->next());
+ delete lmit;
+ }
// Process each slots data
- for (Slot *slot : newSlots) {
- processSlot(indexer, slot, acceptUpdatesToLocal, machineSet);
-
- updateExpectedSize();
+ {
+ uint numSlots = newSlots->length();
+ for(uint i=0; i<numSlots; i++) {
+ Slot *slot = newSlots->get(i);
+ processSlot(indexer, slot, acceptUpdatesToLocal, machineSet);
+ updateExpectedSize();
+ }
}
// If there is a gap, check to see if the server sent us
// Check the size of the slots that were sent down by the server->
// Can only check the size if there was a gap
- checkNumSlots(newSlots->length);
+ checkNumSlots(newSlots->length());
// Since there was a gap every machine must have pushed a slot or
// must have a last message message-> If not then the server is
commitNewMaxSize();
// Commit new to slots to the local block chain->
- for (Slot *slot : newSlots) {
-
- // Insert this slot into our local block chain copy->
- buffer->putSlot(slot);
-
- // Keep track of how many slots are currently live (have live data
- // in them)->
- liveSlotCount++;
+ {
+ uint numSlots = newSlots->length();
+ for(uint i=0; i<numSlots; i++) {
+ Slot *slot = newSlots->get(i);
+
+ // Insert this slot into our local block chain copy->
+ buffer->putSlot(slot);
+
+ // Keep track of how many slots are currently live (have live data
+ // in them)->
+ liveSlotCount++;
+ }
}
-
// Get the sequence number of the latest slot in the system
sequenceNumber = newSlots->get(newSlots->length() - 1)->getSequenceNumber();
updateLiveStateFromServer();
}
}
-void Table::updateCurrMaxSize(int newmaxsize) {
- currMaxSize = newmaxsize;
-}
-
-
/**
* Update the size of of the local buffer if it is needed->
*/
// Iterate through all the machine Ids that we received new parts
// for
- for (int64_t machineId : newTransactionParts->keySet()) {
- Hashtable<Pair<int64_t int32_t>, TransactionPart *> *parts = newTransactionParts->get(machineId);
+ SetIterator<int64_t, Hashtable<Pair<int64_t, int32_t> *, TransactionPart *, uintptr_t, 0, pairHashFunction, pairEquals> *> * tpit= getKeyIterator(newTransactionParts);
+ while(tpit->hasNext()) {
+ int64_t machineId = tpit->next();
+ Hashtable<Pair<int64_t, int32_t> *, TransactionPart *, uintptr_t, 0, pairHashFunction, pairEquals> *parts = newTransactionParts->get(machineId);
+ SetIterator<Pair<int64_t, int32_t> *, TransactionPart *, uintptr_t, 0, pairHashFunction, pairEquals> *ptit = getKeyIterator(parts);
// Iterate through all the parts for that machine Id
- for (Pair<int64_t, int32_t> partId : parts->keySet()) {
+ while(ptit->hasNext()) {
+ Pair<int64_t, int32_t> * partId = ptit->next();
TransactionPart *part = parts->get(partId);
- int64_t lastTransactionNumber = lastArbitratedTransactionNumberByArbitratorTable->get(part->getArbitratorId());
- if ((lastTransactionNumber != NULL) && (lastTransactionNumber >= part->getSequenceNumber())) {
- // Set dead the transaction part
- part->setDead();
- continue;
+ if (lastArbitratedTransactionNumberByArbitratorTable->contains(part->getArbitratorId())) {
+ int64_t lastTransactionNumber = lastArbitratedTransactionNumberByArbitratorTable->get(part->getArbitratorId());
+ if (lastTransactionNumber >= part->getSequenceNumber()) {
+ // Set dead the transaction part
+ part->setDead();
+ continue;
+ }
}
-
+
// Get the transaction object for that sequence number
Transaction *transaction = liveTransactionBySequenceNumberTable->get(part->getSequenceNumber());
// Insert this new transaction into the live tables
liveTransactionBySequenceNumberTable->put(part->getSequenceNumber(), transaction);
- liveTransactionByTransactionIdTable->put(part->getTransactionId(), transaction);
+ liveTransactionByTransactionIdTable->put(new Pair<int64_t, int64_t>(part->getTransactionId()), transaction);
}
// Add that part to the transaction
transaction->addPartDecode(part);
}
+ delete ptit;
}
-
+ delete tpit;
// Clear all the new transaction parts in preparation for the next
// time the server sends slots
newTransactionParts->clear();
}
// Get the transaction sequence numbers and sort from oldest to newest
- Vector<int64_t> *transactionSequenceNumbers = new Vector<int64_t>(liveTransactionBySequenceNumberTable->keySet());
- Collections->sort(transactionSequenceNumbers);
+ Vector<int64_t> *transactionSequenceNumbers = new Vector<int64_t>();
+ {
+ SetIterator<int64_t, Transaction *> * trit = getKeyIterator(liveTransactionBySequenceNumberTable);
+ while(trit->hasNext())
+ transactionSequenceNumbers->add(trit->next());
+ delete trit;
+ }
+ qsort(transactionSequenceNumbers->expose(), transactionSequenceNumbers->size(), sizeof(int64_t), compareInt64);
// Collection of key value pairs that are
- Hashtable<IoTString *, KeyValue *> speculativeTableTmp = new Hashtable<IoTString *, KeyValue *>();
+ Hashtable<IoTString *, KeyValue *> * speculativeTableTmp = new Hashtable<IoTString *, KeyValue *>();
// The last transaction arbitrated on
int64_t lastTransactionCommitted = -1;
Hashset<Abort *> *generatedAborts = new Hashset<Abort *>();
-
- for (int64_t transactionSequenceNumber : transactionSequenceNumbers) {
+ uint tsnSize = transactionSequenceNumbers->size();
+ for(uint i=0; i<tsnSize; i++) {
+ int64_t transactionSequenceNumber = transactionSequenceNumbers->get(i);
Transaction *transaction = liveTransactionBySequenceNumberTable->get(transactionSequenceNumber);
-
-
// Check if this machine arbitrates for this transaction if not
// then we cant arbitrate this transaction
if (transaction->getArbitrator() != localMachineId) {
// update the largest transaction seen by arbitrator from server
- if (lastTransactionSeenFromMachineFromServer->get(transaction->getMachineId()) == NULL) {
+ if (!lastTransactionSeenFromMachineFromServer->contains(transaction->getMachineId())) {
lastTransactionSeenFromMachineFromServer->put(transaction->getMachineId(), transaction->getClientLocalSequenceNumber());
} else {
int64_t lastTransactionSeenFromMachine = lastTransactionSeenFromMachineFromServer->get(transaction->getMachineId());
// Guard evaluated as true
// Update the local changes so we can make the commit
- for (KeyValue *kv : transaction->getKeyValueUpdateSet()) {
+ SetIterator<KeyValue *, KeyValue *> *kvit = transaction->getKeyValueUpdateSet()->iterator();
+ while (kvit->hasNext()) {
+ KeyValue *kv = kvit->next();
speculativeTableTmp->put(kv->getKey(), kv);
}
-
+ delete kvit;
+
// Update what the last transaction committed was for use in batch commit
lastTransactionCommitted = transactionSequenceNumber;
} else {
localArbitrationSequenceNumber++;
// Update the local changes so we can make the commit
- for (KeyValue *kv : transaction->getKeyValueUpdateSet()) {
+ SetIterator<KeyValue *, KeyValue *> *kvit = transaction->getKeyValueUpdateSet()->iterator();
+ while (kvit->hasNext()) {
+ KeyValue *kv = kvit->next();
newCommit->addKV(kv);
}
-
+ delete kvit;
+
// create the commit parts
newCommit->createCommitParts();
if (transaction->getMachineId() == localMachineId) {
// For locally created messages update the status
// Guard evaluated was false so create abort
- TransactionStatus status = transaction->getTransactionStatus();
+ TransactionStatus * status = transaction->getTransactionStatus();
if (status != NULL) {
status->setStatus(TransactionStatus_StatusAborted);
}
}
ArbitrationRound *lastRound = pendingSendArbitrationRounds->get(pendingSendArbitrationRounds->size() - 1);
- if (lastRound->didSendPart()) {
+ if (lastRound->getDidSendPart()) {
return false;
}
int numberToDelete = 1;
while (numberToDelete < pendingSendArbitrationRounds->size()) {
- ArbitrationRound *xs round = pendingSendArbitrationRounds->get(pendingSendArbitrationRounds->size() - numberToDelete - 1);
+ ArbitrationRound *round = pendingSendArbitrationRounds->get(pendingSendArbitrationRounds->size() - numberToDelete - 1);
- if (round->isFull() || round->didSendPart()) {
+ if (round->isFull() || round->getDidSendPart()) {
// Stop since there is a part that cannot be compacted and we
// need to compact in order
break;
if (round->getCommit() == NULL) {
// Try compacting aborts only
int newSize = round->getCurrentSize() + lastRound->getAbortsCount();
- if (newSize > ArbitrationRound->MAX_PARTS) {
+ if (newSize > ArbitrationRound_MAX_PARTS) {
// Cant compact since it would be too large
break;
}
lastRound->addAborts(round->getAborts());
} else {
// Create a new larger commit
- Commit newCommit = Commit->merge(lastRound->getCommit(), round->getCommit(), localArbitrationSequenceNumber);
+ Commit * newCommit = Commit_merge(lastRound->getCommit(), round->getCommit(), localArbitrationSequenceNumber);
localArbitrationSequenceNumber++;
// Create the commit parts so that we can count them
newSize += lastRound->getAbortsCount();
newSize += round->getAbortsCount();
- if (newSize > ArbitrationRound->MAX_PARTS) {
+ if (newSize > ArbitrationRound_MAX_PARTS) {
// Cant compact since it would be too large
break;
}
pendingSendArbitrationRounds->clear();
} else {
for (int i = 0; i < numberToDelete; i++) {
- pendingSendArbitrationRounds->remove(pendingSendArbitrationRounds->size() - 1);
+ pendingSendArbitrationRounds->removeIndex(pendingSendArbitrationRounds->size() - 1);
}
}
// Iterate through all the machine Ids that we received new parts for
for (int64_t machineId : newCommitParts->keySet()) {
- Hashtable<Pair<int64_t, int32_t>, CommitPart *> *parts = newCommitParts->get(machineId);
+ Hashtable<Pair<int64_t, int32_t> *, CommitPart *> *parts = newCommitParts->get(machineId);
// Iterate through all the parts for that machine Id
for (Pair<int64_t, int32_t> partId : parts->keySet()) {
// Sort the commits in order
Vector<int64_t> *commitSequenceNumbers = new Vector<int64_t>(commitForClientTable->keySet());
- Collections->sort(commitSequenceNumbers);
+ qsort(commitSequenceNumbers->expose(), commitSequenceNumbers->size(), sizeof(int64_t), compareInt64);
// Get the last commit seen from this arbitrator
int64_t lastCommitSeenSequenceNumber = -1;
}
// Update the last arbitration data that we have seen so far
- if (lastArbitrationDataLocalSequenceNumberSeenFromArbitrator->get(commit->getMachineId()) != NULL) {
-
+ if (lastArbitrationDataLocalSequenceNumberSeenFromArbitrator->contains(commit->getMachineId())) {
int64_t lastArbitrationSequenceNumber = lastArbitrationDataLocalSequenceNumberSeenFromArbitrator->get(commit->getMachineId());
if (commit->getSequenceNumber() > lastArbitrationSequenceNumber) {
// Is larger
// Get what commits should be edited, these are the commits that
// have live values for their keys
Hashset<Commit *> *commitsToEdit = new Hashset<Commit *>();
- for (KeyValue *kv : commit->getKeyValueUpdateSet()) {
- commitsToEdit->add(liveCommitsByKeyTable->get(kv->getKey()));
+ {
+ SetIterator<KeyValue *, KeyValue *, uintptr_t, 0, hashKeyValue, equalsKeyValue> *kvit = commit->getKeyValueUpdateSet()->iterator();
+ while (kvit->hasNext()) {
+ KeyValue *kv = kvit->next();
+ commitsToEdit->add(liveCommitsByKeyTable->get(kv->getKey()));
+ }
+ delete kvit;
}
commitsToEdit->remove(NULL); // remove NULL since it could be in this set
if (previousCommit->isLive()) {
// Update which keys in the old commits are still live
- for (KeyValue *kv : commit->getKeyValueUpdateSet()) {
- previousCommit->invalidateKey(kv->getKey());
+ {
+ SetIterator<KeyValue *, KeyValue *, uintptr_t, 0, hashKeyValue, equalsKeyValue> *kvit = commit->getKeyValueUpdateSet()->iterator();
+ while (kvit->hasNext()) {
+ KeyValue *kv = kvit->next();
+ previousCommit->invalidateKey(kv->getKey());
+ }
+ delete kvit;
}
-
+
// if the commit is now dead then remove it
if (!previousCommit->isLive()) {
commitForClientTable->remove(previousCommit);
didProcessANewCommit = true;
// Update the committed table of keys and which commit is using which key
- for (KeyValue *kv : commit->getKeyValueUpdateSet()) {
- committedKeyValueTable->put(kv->getKey(), kv);
- liveCommitsByKeyTable->put(kv->getKey(), commit);
+ {
+ SetIterator<KeyValue *, KeyValue *, uintptr_t, 0, hashKeyValue, equalsKeyValue> *kvit = commit->getKeyValueUpdateSet()->iterator();
+ while (kvit->hasNext()) {
+ KeyValue *kv = kvit->next();
+ committedKeyValueTable->put(kv->getKey(), kv);
+ liveCommitsByKeyTable->put(kv->getKey(), commit);
+ }
+ delete kvit;
}
}
}
// Create a list of the transaction sequence numbers and sort them
// from oldest to newest
Vector<int64_t> *transactionSequenceNumbersSorted = new Vector<int64_t>(liveTransactionBySequenceNumberTable->keySet());
- Collections->sort(transactionSequenceNumbersSorted);
+ qsort(transactionSequenceNumberSorted->expose(), transactionSequenceNumbersSorted->size(), sizeof(int64_t), compareInt64);
bool hasGapInTransactionSequenceNumbers = transactionSequenceNumbersSorted->get(0) != oldestTransactionSequenceNumberSpeculatedOn;
if (transaction->evaluateGuard(committedKeyValueTable, speculatedKeyValueTable, NULL)) {
// Guard evaluated to true so update the speculative table
- for (KeyValue *kv : transaction->getKeyValueUpdateSet()) {
- speculatedKeyValueTable->put(kv->getKey(), kv);
+ {
+ SetIterator<KeyValue *, KeyValue *> *kvit = transaction->getKeyValueUpdateSet()->iterator();
+ while (kvit->hasNext()) {
+ KeyValue *kv = kvit->next();
+ speculatedKeyValueTable->put(kv->getKey(), kv);
+ }
+ delete kvit;
}
}
}
if (transaction->evaluateGuard(committedKeyValueTable, speculatedKeyValueTable, pendingTransactionSpeculatedKeyValueTable)) {
// Guard evaluated to true so update the speculative table
- for (KeyValue *kv : transaction->getKeyValueUpdateSet()) {
+ SetIterator<KeyValue *, KeyValue *> *kvit = transaction->getKeyValueUpdateSet()->iterator();
+ while (kvit->hasNext()) {
+ KeyValue *kv = kvit->next();
pendingTransactionSpeculatedKeyValueTable->put(kv->getKey(), kv);
}
+ delete kvit;
}
}
}
updateLastMessage(slot->getMachineID(), slot->getSequenceNumber(), slot, acceptUpdatesToLocal, machineSet);
// Process each entry in the slot
- for (Entry *entry : slot->getEntries()) {
+ Vector<Entry *> *entries = slot->getEntries();
+ uint eSize = entries->size();
+ for(uint ei=0; ei < eSize; ei++) {
+ Entry * entry = entries->get(ei);
switch (entry->getType()) {
case TypeCommitPart:
processEntry((CommitPart *)entry);
* seen in this current round of updating the local copy of the block
* chain
*/
-void Table::processEntry(TableStatus entry, int64_t seq) {
+void Table::processEntry(TableStatus * entry, int64_t seq) {
int newNumSlots = entry->getMaxSlots();
updateCurrMaxSize(newNumSlots);
initExpectedSize(seq, newNumSlots);
// keep track of it
Abort *previouslySeenAbort = liveAbortTable->put(entry->getAbortId(), entry);
if (previouslySeenAbort != NULL) {
- previouslySeenAbort->setDead(); // Delete old version of the abort since we got a rescued newer version
+ previouslySeenAbort->setDead(); // Delete old version of the abort since we got a rescued newer version
}
if (entry->getTransactionArbitrator() == localMachineId) {
if ((entry->getSequenceNumber() != -1) && (lastMessageTable->get(entry->getTransactionMachineId()).getFirst() >= entry->getSequenceNumber())) {
// The machine already saw this so it is dead
entry->setDead();
- liveAbortTable->remove(entry->getAbortId());
+ liveAbortTable->remove(&entry->getAbortId());
if (entry->getTransactionArbitrator() == localMachineId) {
liveAbortsGeneratedByLocal->remove(entry->getArbitratorLocalSequenceNumber());
}
// Update the last arbitration data that we have seen so far
- if (lastArbitrationDataLocalSequenceNumberSeenFromArbitrator->get(entry->getTransactionArbitrator()) != NULL) {
+ if (lastArbitrationDataLocalSequenceNumberSeenFromArbitrator->contains(entry->getTransactionArbitrator())) {
int64_t lastArbitrationSequenceNumber = lastArbitrationDataLocalSequenceNumberSeenFromArbitrator->get(entry->getTransactionArbitrator());
if (entry->getSequenceNumber() > lastArbitrationSequenceNumber) {
// Is larger
}
// This part is still alive
- Hashtable<Pair<int64_t, int32_t>, TransactionPart *, uintptr_t, 0, pairHashFunction, pairEquals> *transactionPart = newTransactionParts->get(entry->getMachineId());
+ Hashtable<Pair<int64_t, int32_t> *, TransactionPart *, uintptr_t, 0, pairHashFunction, pairEquals> *transactionPart = newTransactionParts->get(entry->getMachineId());
if (transactionPart == NULL) {
// Dont have a table for this machine Id yet so make one
- transactionPart = new Hashtable<Pair<int64_t, int32_t>, TransactionPart *>();
+ transactionPart = new Hashtable<Pair<int64_t, int32_t> *, TransactionPart *, uintptr_t, 0, pairHashFunction, pairEquals>();
newTransactionParts->put(entry->getMachineId(), transactionPart);
}
}
}
- Hashtable<Pair<int64_t, int32_t>, CommitPart *> *commitPart = newCommitParts->get(entry->getMachineId());
+ Hashtable<Pair<int64_t, int32_t> *, CommitPart *> *commitPart = newCommitParts->get(entry->getMachineId());
if (commitPart == NULL) {
// Don't have a table for this machine Id yet so make one
- commitPart = new Hashtable<Pair<int64_t, int32_t>, CommitPart *>();
+ commitPart = new Hashtable<Pair<int64_t, int32_t> *, CommitPart *>();
newCommitParts->put(entry->getMachineId(), commitPart);
}
// Update the part and set dead ones we have already seen (got a
* our own last message or that other clients have not had a rollback
* on the last message->
*/
-void Table::updateLastMessage(int64_t machineId, int64_t seqNum, Liveness *liveness, bool acceptUpdatesToLocal, Hashset<intr64_t> *machineSet) {
+void Table::updateLastMessage(int64_t machineId, int64_t seqNum, Liveness *liveness, bool acceptUpdatesToLocal, Hashset<int64_t> *machineSet) {
// We have seen this machine ID
machineSet->remove(machineId);
if (watchset != NULL) {
// Go through each rejected message that this machine Id has not
// seen yet
- for (Iterator<RejectedMessage *> *rmit = watchset->iterator(); rmit->hasNext(); ) {
+
+ SetIterator<RejectedMessage *, RejectedMessage *> *rmit = watchset->iterator();
+ while(rmit->hasNext()) {
RejectedMessage *rm = rmit->next();
// If this machine Id has seen this rejected message->->->
if (rm->getSequenceNumber() <= seqNum) {
rm->removeWatcher(machineId);
}
}
+ delete rmit;
}
// Set dead the abort
}
if (machineId == localMachineId) {
// Our own messages are immediately dead->
- if (liveness instanceof LastMessage) {
+ char livenessType = liveness->getType();
+ if (livenessType==TypeLastMessage) {
((LastMessage *)liveness)->setDead();
- } else if (liveness instanceof Slot) {
+ } else if (livenessType == TypeSlot) {
((Slot *)liveness)->setDead();
} else {
throw new Error("Unrecognized type");
}
}
// Get the old last message for this device
- Pair<int64_t, Liveness *> lastMessageEntry = lastMessageTable->put(machineId, Pair<int64_t, Liveness *>(seqNum, liveness));
+ Pair<int64_t, Liveness *> * lastMessageEntry = lastMessageTable->put(machineId, new Pair<int64_t, Liveness *>(seqNum, liveness));
if (lastMessageEntry == NULL) {
// If no last message then there is nothing else to process
return;
}
- int64_t lastMessageSeqNum = lastMessageEntry.getFirst();
- Liveness *lastEntry = lastMessageEntry.getSecond();
-
+ int64_t lastMessageSeqNum = lastMessageEntry->getFirst();
+ Liveness *lastEntry = lastMessageEntry->getSecond();
+ delete lastMessageEntry;
+
// If it is not our machine Id since we already set ours to dead
if (machineId != localMachineId) {
- if (lastEntry instanceof LastMessage) {
+ char lastEntryType = lastEntry->getType();
+
+ if (lastEntryType == TypeLastMessage) {
((LastMessage *)lastEntry)->setDead();
- } else if (lastEntry instanceof Slot) {
+ } else if (lastEntryType == TypeSlot) {
((Slot *)lastEntry)->setDead();
} else {
throw new Error("Unrecognized type");