oldestLiveSlotSequenceNumver(1),
localMachineId(_localMachineId),
sequenceNumber(0),
+ localSequenceNumber(0),
localTransactionSequenceNumber(0),
lastTransactionSequenceNumberSpeculatedOn(0),
oldestTransactionSequenceNumberSpeculatedOn(0),
oldestLiveSlotSequenceNumver(1),
localMachineId(_localMachineId),
sequenceNumber(0),
+ localSequenceNumber(0),
localTransactionSequenceNumber(0),
lastTransactionSequenceNumberSpeculatedOn(0),
oldestTransactionSequenceNumberSpeculatedOn(0),
init();
}
+Table::~Table() {
+ delete cloud;
+ delete random;
+ delete buffer;
+ // init data structs
+ delete committedKeyValueTable;
+ delete speculatedKeyValueTable;
+ delete pendingTransactionSpeculatedKeyValueTable;
+ delete liveNewKeyTable;
+ {
+ SetIterator<int64_t, Pair<int64_t, Liveness *> *> *lmit = getKeyIterator(lastMessageTable);
+ while (lmit->hasNext()) {
+ Pair<int64_t, Liveness *> * pair = lastMessageTable->get(lmit->next());
+ }
+ delete lmit;
+ delete lastMessageTable;
+ }
+ if (pendingTransactionBuilder != NULL)
+ delete pendingTransactionBuilder;
+ {
+ SetIterator<int64_t, Hashset<RejectedMessage *> *> *rmit = getKeyIterator(rejectedMessageWatchVectorTable);
+ while(rmit->hasNext()) {
+ int64_t machineid = rmit->next();
+ Hashset<RejectedMessage *> * rmset = rejectedMessageWatchVectorTable->get(machineid);
+ SetIterator<RejectedMessage *, RejectedMessage *> * mit = rmset->iterator();
+ while (mit->hasNext()) {
+ RejectedMessage * rm = mit->next();
+ delete rm;
+ }
+ delete mit;
+ delete rmset;
+ }
+ delete rmit;
+ delete rejectedMessageWatchVectorTable;
+ }
+ delete arbitratorTable;
+ delete liveAbortTable;
+ {
+ SetIterator<int64_t, Hashtable<Pair<int64_t, int32_t> *, TransactionPart *, uintptr_t, 0, pairHashFunction, pairEquals> *> *partsit = getKeyIterator(newTransactionParts);
+ while (partsit->hasNext()) {
+ int64_t machineId = partsit->next();
+ Hashtable<Pair<int64_t, int32_t> *, TransactionPart *, uintptr_t, 0, pairHashFunction, pairEquals> *parts = newTransactionParts->get(machineId);
+ delete parts;
+ }
+ delete partsit;
+ delete newTransactionParts;
+ }
+ {
+ SetIterator<int64_t, Hashtable<Pair<int64_t, int32_t> *, CommitPart *, uintptr_t, 0, pairHashFunction, pairEquals> *> *partsit = getKeyIterator(newCommitParts);
+ while (partsit->hasNext()) {
+ int64_t machineId = partsit->next();
+ Hashtable<Pair<int64_t, int32_t> *, CommitPart *, uintptr_t, 0, pairHashFunction, pairEquals> *parts = newCommitParts->get(machineId);
+ delete parts;
+ }
+ delete partsit;
+ delete newCommitParts;
+ }
+ delete lastArbitratedTransactionNumberByArbitratorTable;
+ delete liveTransactionBySequenceNumberTable;
+ delete liveTransactionByTransactionIdTable;
+ {
+ SetIterator<int64_t, Hashtable<int64_t, Commit *> *> *liveit = getKeyIterator(liveCommitsTable);
+ while (liveit->hasNext()) {
+ int64_t arbitratorId = liveit->next();
+
+ // Get all the commits for a specific arbitrator
+ Hashtable<int64_t, Commit *> *commitForClientTable = liveCommitsTable->get(arbitratorId);
+ {
+ SetIterator<int64_t, Commit *> *clientit = getKeyIterator(commitForClientTable);
+ while (clientit->hasNext()) {
+ int64_t id = clientit->next();
+ delete commitForClientTable->get(id);
+ }
+ delete clientit;
+ }
+
+ delete commitForClientTable;
+ }
+ delete liveit;
+ delete liveCommitsTable;
+ }
+ delete liveCommitsByKeyTable;
+ delete lastCommitSeenSequenceNumberByArbitratorTable;
+ delete rejectedSlotVector;
+ {
+ uint size = pendingTransactionQueue->size();
+ for (uint iter = 0; iter < size; iter++) {
+ delete pendingTransactionQueue->get(iter);
+ }
+ delete pendingTransactionQueue;
+ }
+ delete pendingSendArbitrationEntriesToDelete;
+ delete transactionPartsSent;
+ delete outstandingTransactionStatus;
+ delete liveAbortsGeneratedByLocal;
+ delete offlineTransactionsCommittedAndAtServer;
+ delete localCommunicationTable;
+ delete lastTransactionSeenFromMachineFromServer;
+ {
+ for(uint i = 0; i < pendingSendArbitrationRounds->size(); i++) {
+ delete pendingSendArbitrationRounds->get(i);
+ }
+ delete pendingSendArbitrationRounds;
+ }
+ if (lastTransactionPartsSent != NULL)
+ delete lastTransactionPartsSent;
+ delete lastArbitrationDataLocalSequenceNumberSeenFromArbitrator;
+}
+
/**
* Init all the stuff needed for for table usage
*/
buffer = new SlotBuffer();
// init data structs
- committedKeyValueTable = new Hashtable<IoTString *, KeyValue *>();
- speculatedKeyValueTable = new Hashtable<IoTString *, KeyValue *>();
- pendingTransactionSpeculatedKeyValueTable = new Hashtable<IoTString *, KeyValue *>();
- liveNewKeyTable = new Hashtable<IoTString *, NewKey *>();
+ committedKeyValueTable = new Hashtable<IoTString *, KeyValue *, uintptr_t, 0, hashString, StringEquals>();
+ speculatedKeyValueTable = new Hashtable<IoTString *, KeyValue *, uintptr_t, 0, hashString, StringEquals>();
+ pendingTransactionSpeculatedKeyValueTable = new Hashtable<IoTString *, KeyValue *, uintptr_t, 0, hashString, StringEquals>();
+ liveNewKeyTable = new Hashtable<IoTString *, NewKey *, uintptr_t, 0, hashString, StringEquals >();
lastMessageTable = new Hashtable<int64_t, Pair<int64_t, Liveness *> * >();
rejectedMessageWatchVectorTable = new Hashtable<int64_t, Hashset<RejectedMessage *> * >();
- arbitratorTable = new Hashtable<IoTString *, int64_t>();
+ arbitratorTable = new Hashtable<IoTString *, int64_t, uintptr_t, 0, hashString, StringEquals>();
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> *>();
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 *> * >();
- liveCommitsByKeyTable = new Hashtable<IoTString *, Commit *>();
+ liveCommitsByKeyTable = new Hashtable<IoTString *, Commit *, uintptr_t, 0, hashString, StringEquals>();
lastCommitSeenSequenceNumberByArbitratorTable = new Hashtable<int64_t, int64_t>();
rejectedSlotVector = new Vector<int64_t>();
pendingTransactionQueue = new Vector<Transaction *>();
array->set(0, s);
// update local block chain
validateAndUpdate(array, true);
+ delete array;
} else if (array->length() == 1) {
// in case we did push the slot BUT we failed to init it
validateAndUpdate(array, true);
+ delete array;
} else {
+ delete array;
throw new Error("Error on initialization");
}
}
// Just pull the latest slots from the server
Array<Slot *> *newslots = cloud->getSlots(sequenceNumber + 1);
validateAndUpdate(newslots, true);
+ delete newslots;
sendToServer(NULL);
updateLiveTransactionsAndStatus();
}
KeyValue *kv = committedKeyValueTable->get(key);
if (kv != NULL) {
- return kv->getValue();
+ return new IoTString(kv->getValue());
} else {
return NULL;
}
}
if (kv != NULL) {
- return kv->getValue();
+ return new IoTString(kv->getValue());
} else {
return NULL;
}
if (kv != NULL) {
pendingTransactionBuilder->addKVGuard(new KeyValue(key, kv->getValue()));
- return kv->getValue();
+ return new IoTString(kv->getValue());
} else {
pendingTransactionBuilder->addKVGuard(new KeyValue(key, NULL));
return NULL;
if (kv != NULL) {
pendingTransactionBuilder->addKVGuard(new KeyValue(key, kv->getValue()));
- return kv->getValue();
+ return new IoTString(kv->getValue());
} else {
pendingTransactionBuilder->addKVGuard(new KeyValue(key, NULL));
return NULL;
try {
Array<Slot *> *newSlots = cloud->getSlots(sequenceNumber + 1);
validateAndUpdate(newSlots, false);
+ delete newSlots;
sendToServer(NULL);
updateLiveTransactionsAndStatus();
return true;
bool Table::createNewKey(IoTString *keyName, int64_t machineId) {
while (true) {
- if (!arbitratorTable->contains(keyName)) {
+ if (arbitratorTable->contains(keyName)) {
// There is already an arbitrator
return false;
}
void Table::startTransaction() {
// Create a new transaction, invalidates any old pending transactions.
+ if (pendingTransactionBuilder != NULL)
+ delete pendingTransactionBuilder;
pendingTransactionBuilder = new PendingTransaction(localMachineId);
}
-void Table::addKV(IoTString *key, IoTString *value) {
-
+void Table::put(IoTString *key, IoTString *value) {
// Make sure it is a valid key
if (!arbitratorTable->contains(key)) {
throw new Error("Key not Found.");
}
// Add the key value to this transaction
- KeyValue *kv = new KeyValue(key, value);
+ KeyValue *kv = new KeyValue(new IoTString(key), new IoTString(value));
pendingTransactionBuilder->addKV(kv);
}
pendingTransactionQueue->add(newTransaction);
} else {
arbitrateOnLocalTransaction(newTransaction);
+ delete newTransaction;
updateLiveStateFromLocal();
}
-
+ if (pendingTransactionBuilder != NULL)
+ delete pendingTransactionBuilder;
+
pendingTransactionBuilder = new PendingTransaction(localMachineId);
try {
if (sendReturn.getSecond()) {
// did arbitrate
+ delete transaction;
oldindex--;
}
}
return localSequenceNumber;
}
-bool Table::sendToServer(NewKey *newKey) {
- bool fromRetry = false;
- try {
- if (hadPartialSendToServer) {
- Array<Slot *> *newSlots = cloud->getSlots(sequenceNumber + 1);
- if (newSlots->length() == 0) {
- fromRetry = true;
- ThreeTuple<bool, bool, Array<Slot *> *> sendSlotsReturn = sendSlotsToServer(lastSlotAttemptedToSend, lastNewSize, lastIsNewKey);
-
- if (sendSlotsReturn.getFirst()) {
- if (newKey != NULL) {
- if (lastInsertedNewKey && (lastNewKey->getKey() == newKey->getKey()) && (lastNewKey->getMachineID() == newKey->getMachineID())) {
- newKey = NULL;
- }
- }
-
- 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));
- // Add the transaction status to the outstanding list
- outstandingTransactionStatus->put(transaction->getSequenceNumber(), transaction->getTransactionStatus());
-
- // Update the transaction status
- transaction->getTransactionStatus()->setStatus(TransactionStatus_StatusSentPartial);
-
- // Check if all the transaction parts were successfully
- // sent and if so then remove it from pending
- if (transaction->didSendAllParts()) {
- transaction->getTransactionStatus()->setStatus(TransactionStatus_StatusSentFully);
- pendingTransactionQueue->remove(transaction);
- }
- }
- delete trit;
- } else {
- newSlots = sendSlotsReturn.getThird();
- bool isInserted = false;
- for (uint si = 0; si < newSlots->length(); si++) {
- Slot *s = newSlots->get(si);
- if ((s->getSequenceNumber() == lastSlotAttemptedToSend->getSequenceNumber()) && (s->getMachineID() == localMachineId)) {
- isInserted = true;
- break;
- }
- }
-
- for (uint si = 0; si < newSlots->length(); si++) {
- Slot *s = newSlots->get(si);
- if (isInserted) {
- break;
- }
-
- // Process each entry in the slot
- 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())) {
- isInserted = true;
- break;
- }
- }
- }
- }
-
- if (isInserted) {
- if (newKey != NULL) {
- if (lastInsertedNewKey && (lastNewKey->getKey() == newKey->getKey()) && (lastNewKey->getMachineID() == newKey->getMachineID())) {
- newKey = NULL;
- }
- }
-
- 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));
-
- // Add the transaction status to the outstanding list
- outstandingTransactionStatus->put(transaction->getSequenceNumber(), transaction->getTransactionStatus());
-
- // Update the transaction status
- transaction->getTransactionStatus()->setStatus(TransactionStatus_StatusSentPartial);
-
- // Check if all the transaction parts were successfully sent and if so then remove it from pending
- if (transaction->didSendAllParts()) {
- transaction->getTransactionStatus()->setStatus(TransactionStatus_StatusSentFully);
- pendingTransactionQueue->remove(transaction);
- } else {
- transaction->resetServerFailure();
- // Set the transaction sequence number back to nothing
- if (!transaction->didSendAPartToServer()) {
- transaction->setSequenceNumber(-1);
- }
- }
- }
- delete trit;
+NewKey * Table::handlePartialSend(NewKey * newKey) {
+ //Didn't receive acknowledgement for last send
+ //See if the server has received a newer slot
+
+ Array<Slot *> *newSlots = cloud->getSlots(sequenceNumber + 1);
+ if (newSlots->length() == 0) {
+ //Retry sending old slot
+ bool wasInserted = false;
+ bool sendSlotsReturn = sendSlotsToServer(lastSlotAttemptedToSend, lastNewSize, lastIsNewKey, &wasInserted, &newSlots);
+
+ if (sendSlotsReturn) {
+ if (newKey != NULL) {
+ if (lastInsertedNewKey && (lastNewKey->getKey() == newKey->getKey()) && (lastNewKey->getMachineID() == newKey->getMachineID())) {
+ newKey = NULL;
+ }
+ }
+
+ 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));
+ // Add the transaction status to the outstanding list
+ outstandingTransactionStatus->put(transaction->getSequenceNumber(), transaction->getTransactionStatus());
+
+ // Update the transaction status
+ transaction->getTransactionStatus()->setStatus(TransactionStatus_StatusSentPartial);
+
+ // Check if all the transaction parts were successfully
+ // sent and if so then remove it from pending
+ if (transaction->didSendAllParts()) {
+ transaction->getTransactionStatus()->setStatus(TransactionStatus_StatusSentFully);
+ pendingTransactionQueue->remove(transaction);
+ }
+ }
+ delete trit;
+ } else {
+ if (checkSend(newSlots, lastSlotAttemptedToSend)) {
+ if (newKey != NULL) {
+ if (lastInsertedNewKey && (lastNewKey->getKey() == newKey->getKey()) && (lastNewKey->getMachineID() == newKey->getMachineID())) {
+ newKey = NULL;
}
}
-
+
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
- validateAndUpdate(sendSlotsReturn.getThird(), true);
- }
- // continue;
- } else {
- bool isInserted = false;
- for (uint si = 0; si < newSlots->length(); si++) {
- Slot *s = newSlots->get(si);
- if ((s->getSequenceNumber() == lastSlotAttemptedToSend->getSequenceNumber()) && (s->getMachineID() == localMachineId)) {
- isInserted = true;
- break;
- }
- }
-
- for (uint si = 0; si < newSlots->length(); si++) {
- Slot *s = newSlots->get(si);
- if (isInserted) {
- break;
- }
-
- // Process each entry in the slot
- 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())) {
- isInserted = true;
- break;
- }
- }
- }
- }
-
- if (isInserted) {
- if (newKey != NULL) {
- if (lastInsertedNewKey && (lastNewKey->getKey() == newKey->getKey()) && (lastNewKey->getMachineID() == newKey->getMachineID())) {
- newKey = NULL;
- }
- }
-
- 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));
-
- // Add the transaction status to the outstanding list
- outstandingTransactionStatus->put(transaction->getSequenceNumber(), transaction->getTransactionStatus());
-
- // Update the transaction status
- transaction->getTransactionStatus()->setStatus(TransactionStatus_StatusSentPartial);
-
- // Check if all the transaction parts were successfully sent and if so then remove it from pending
- if (transaction->didSendAllParts()) {
- transaction->getTransactionStatus()->setStatus(TransactionStatus_StatusSentFully);
- pendingTransactionQueue->remove(transaction);
- } else {
- transaction->resetServerFailure();
- // Set the transaction sequence number back to nothing
- if (!transaction->didSendAPartToServer()) {
- transaction->setSequenceNumber(-1);
- }
- }
- }
- delete trit;
- } else {
- SetIterator<Transaction *, Vector<int> *> *trit = getKeyIterator(lastTransactionPartsSent);
- while (trit->hasNext()) {
- Transaction *transaction = trit->next();
+
+ // Update which transactions parts still need to be sent
+ transaction->removeSentParts(lastTransactionPartsSent->get(transaction));
+
+ // Add the transaction status to the outstanding list
+ outstandingTransactionStatus->put(transaction->getSequenceNumber(), transaction->getTransactionStatus());
+
+ // Update the transaction status
+ transaction->getTransactionStatus()->setStatus(TransactionStatus_StatusSentPartial);
+
+ // Check if all the transaction parts were successfully sent and if so then remove it from pending
+ if (transaction->didSendAllParts()) {
+ transaction->getTransactionStatus()->setStatus(TransactionStatus_StatusSentFully);
+ pendingTransactionQueue->remove(transaction);
+ } else {
transaction->resetServerFailure();
// Set the transaction sequence number back to nothing
if (!transaction->didSendAPartToServer()) {
transaction->setSequenceNumber(-1);
}
}
- delete trit;
}
-
- // insert into the local block chain
- validateAndUpdate(newSlots, true);
+ delete trit;
}
}
- } catch (ServerException *e) {
- throw e;
+
+ 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 (newSlots->length() != 0) {
+ // insert into the local block chain
+ validateAndUpdate(newSlots, true);
+ }
+ } else {
+ if (checkSend(newSlots, lastSlotAttemptedToSend)) {
+ if (newKey != NULL) {
+ if (lastInsertedNewKey && (lastNewKey->getKey() == newKey->getKey()) && (lastNewKey->getMachineID() == newKey->getMachineID())) {
+ newKey = NULL;
+ }
+ }
+
+ 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));
+
+ // Add the transaction status to the outstanding list
+ outstandingTransactionStatus->put(transaction->getSequenceNumber(), transaction->getTransactionStatus());
+
+ // Update the transaction status
+ transaction->getTransactionStatus()->setStatus(TransactionStatus_StatusSentPartial);
+
+ // Check if all the transaction parts were successfully sent and if so then remove it from pending
+ if (transaction->didSendAllParts()) {
+ transaction->getTransactionStatus()->setStatus(TransactionStatus_StatusSentFully);
+ pendingTransactionQueue->remove(transaction);
+ } else {
+ transaction->resetServerFailure();
+ // Set the transaction sequence number back to nothing
+ if (!transaction->didSendAPartToServer()) {
+ transaction->setSequenceNumber(-1);
+ }
+ }
+ }
+ delete trit;
+ } else {
+ 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
+ validateAndUpdate(newSlots, true);
}
+ delete newSlots;
+ return newKey;
+}
-
+bool Table::sendToServer(NewKey *newKey) {
+ if (hadPartialSendToServer) {
+ newKey = handlePartialSend(newKey);
+ }
try {
// While we have stuff that needs inserting into the block chain
while ((pendingTransactionQueue->size() > 0) || (pendingSendArbitrationRounds->size() > 0) || (newKey != NULL)) {
-
- fromRetry = false;
-
if (hadPartialSendToServer) {
throw new Error("Should Be error free");
}
-
-
-
+
// If there is a new key with same name then end
if ((newKey != NULL) && arbitratorTable->contains(newKey->getKey())) {
return false;
}
// Create the slot
- Slot *slot = new Slot(this, sequenceNumber + 1, localMachineId, buffer->getSlot(sequenceNumber)->getHMAC(), localSequenceNumber);
+ Slot *slot = new Slot(this, sequenceNumber + 1, localMachineId, new Array<char>(buffer->getSlot(sequenceNumber)->getHMAC()), localSequenceNumber);
localSequenceNumber++;
// Try to fill the slot with data
- ThreeTuple<bool, int32_t, bool> fillSlotsReturn = fillSlot(slot, false, newKey);
- bool needsResize = fillSlotsReturn.getFirst();
- int newSize = fillSlotsReturn.getSecond();
- bool insertedNewKey = fillSlotsReturn.getThird();
+ int newSize = 0;
+ bool insertedNewKey = false;
+ bool needsResize = fillSlot(slot, false, newKey, newSize, insertedNewKey);
if (needsResize) {
// Reset which transaction to send
transactionPartsSent->clear();
// We needed a resize so try again
- fillSlot(slot, true, newKey);
+ fillSlot(slot, true, newKey, newSize, insertedNewKey);
}
lastSlotAttemptedToSend = slot;
lastInsertedNewKey = insertedNewKey;
lastNewSize = newSize;
lastNewKey = newKey;
+ if (lastTransactionPartsSent != NULL)
+ delete lastTransactionPartsSent;
lastTransactionPartsSent = transactionPartsSent->clone();
lastPendingSendArbitrationEntriesToDelete = new Vector<Entry *>(pendingSendArbitrationEntriesToDelete);
- ThreeTuple<bool, bool, Array<Slot *> *> sendSlotsReturn = sendSlotsToServer(slot, newSize, newKey != NULL);
-
- if (sendSlotsReturn.getFirst()) {
+ Array<Slot *> * newSlots = NULL;
+ bool wasInserted = false;
+ bool sendSlotsReturn = sendSlotsToServer(slot, newSize, newKey != NULL, &wasInserted, &newSlots);
+ if (sendSlotsReturn) {
// Did insert into the block chain
-
if (insertedNewKey) {
// This slot was what was inserted not a previous slot
-
// New Key was successfully inserted into the block chain so dont want to insert it again
newKey = NULL;
}
round->removeParts(pendingSendArbitrationEntriesToDelete);
if (!round->isDoneSending()) {
- // Sent all the parts
+ //Add part back in
pendingSendArbitrationRounds->set(oldcount++,
pendingSendArbitrationRounds->get(i));
- }
+ } else
+ delete pendingSendArbitrationRounds->get(i);
}
pendingSendArbitrationRounds->setSize(oldcount);
pendingSendArbitrationEntriesToDelete->clear();
transactionPartsSent->clear();
- if (sendSlotsReturn.getThird()->length() != 0) {
+ if (newSlots->length() != 0) {
// insert into the local block chain
- validateAndUpdate(sendSlotsReturn.getThird(), true);
+ validateAndUpdate(newSlots, true);
}
+ delete newSlots;
}
-
} catch (ServerException *e) {
if (e->getType() != ServerException_TypeInputTimeout) {
// Nothing was able to be sent to the server so just clear these data structures
return returnData;
}
-ThreeTuple<bool, bool, Array<Slot *> *> Table::sendSlotsToServer(Slot *slot, int newSize, bool isNewKey) {
- bool attemptedToSendToServerTmp = attemptedToSendToServer;
- attemptedToSendToServer = true;
-
- bool inserted = false;
- bool lastTryInserted = false;
+/** Checks whether a given slot was sent using new slots in
+ array. Returns true if sent and false otherwise. */
- Array<Slot *> *array = cloud->putSlot(slot, newSize);
- if (array == NULL) {
- array = new Array<Slot *>();
- array->set(0, slot);
- rejectedSlotVector->clear();
- inserted = true;
- } else {
- if (array->length() == 0) {
- throw new Error("Server Error: Did not send any slots");
+bool Table::checkSend(Array<Slot *> * array, Slot *checkSlot) {
+ uint size = array->length();
+ for (uint i = 0; i < size; i++) {
+ Slot *s = array->get(i);
+ if ((s->getSequenceNumber() == checkSlot->getSequenceNumber()) && (s->getMachineID() == localMachineId)) {
+ return true;
}
-
- // if (attemptedToSendToServerTmp) {
- if (hadPartialSendToServer) {
-
- bool isInserted = false;
- 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;
- break;
+ }
+
+ //Also need to see if other machines acknowledged our message
+ for (uint i = 0; i < size; i++) {
+ Slot *s = array->get(i);
+
+ // Process each entry in the slot
+ 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() == checkSlot->getSequenceNumber())) {
+ return true;
}
}
+ }
+ }
+ //Not found
+ return false;
+}
- for (uint i = 0; i < size; i++) {
- Slot *s = array->get(i);
- if (isInserted) {
- break;
- }
+/** Method tries to send slot to server. Returns status in tuple.
+ isInserted returns whether last un-acked send (if any) was
+ successful. Returns whether send was confirmed.x
+ */
- // Process each entry in the slot
- Vector<Entry *> *entries = s->getEntries();
- uint eSize = entries->size();
- for (uint ei = 0; ei < eSize; ei++) {
- Entry *entry = entries->get(ei);
+bool Table::sendSlotsToServer(Slot *slot, int newSize, bool isNewKey, bool *isInserted, Array<Slot *> **array) {
+ attemptedToSendToServer = true;
- if (entry->getType() == TypeLastMessage) {
- LastMessage *lastMessage = (LastMessage *)entry;
+ *array = cloud->putSlot(slot, newSize);
+ if (*array == NULL) {
+ *array = new Array<Slot *>(1);
+ (*array)->set(0, slot);
+ rejectedSlotVector->clear();
+ *isInserted = false;
+ return true;
+ } else {
+ if ((*array)->length() == 0) {
+ throw new Error("Server Error: Did not send any slots");
+ }
- if ((lastMessage->getMachineID() == localMachineId) && (lastMessage->getSequenceNumber() == slot->getSequenceNumber())) {
- isInserted = true;
- break;
- }
- }
- }
- }
+ if (hadPartialSendToServer) {
+ *isInserted = checkSend(*array, slot);
- if (!isInserted) {
+ if (!(*isInserted)) {
rejectedSlotVector->add(slot->getSequenceNumber());
- lastTryInserted = false;
- } else {
- lastTryInserted = true;
}
+
+ return false;
} else {
rejectedSlotVector->add(slot->getSequenceNumber());
- lastTryInserted = false;
+ *isInserted = false;
+ return false;
}
}
-
- return ThreeTuple<bool, bool, Array<Slot *> *>(inserted, lastTryInserted, array);
}
/**
- * Returns false if a resize was needed
+ * Returns true if a resize was needed but not done.
*/
-ThreeTuple<bool, int32_t, bool> Table::fillSlot(Slot *slot, bool resize, NewKey *newKeyEntry) {
- int newSize = 0;
+bool Table::fillSlot(Slot *slot, bool resize, NewKey *newKeyEntry, int & newSize, bool & insertedKey) {
+ newSize = 0;//special value to indicate no resize
if (liveSlotCount > bufferResizeThreshold) {
resize = true;//Resize is forced
}
int64_t currentRescueSequenceNumber = mandatoryRescueReturn.getThird();
if (needsResize && !resize) {
- // We need to resize but we are not resizing so return false
- return ThreeTuple<bool, int32_t, bool>(true, NULL, NULL);
+ // We need to resize but we are not resizing so return true to force on retry
+ return true;
}
- bool inserted = false;
+ insertedKey = false;
if (newKeyEntry != NULL) {
newKeyEntry->setSlot(slot);
if (slot->hasSpace(newKeyEntry)) {
slot->addEntry(newKeyEntry);
- inserted = true;
+ insertedKey = true;
}
}
// Fill the remainder of the slot with rescue data
doOptionalRescue(slot, seenLiveSlot, currentRescueSequenceNumber, resize);
- return ThreeTuple<bool, int32_t, bool>(false, newSize, inserted);
+ return false;
}
void Table::doRejectedMessages(Slot *s) {
s->addEntry(liveentry);
else {
skipcount++;
- if (skipcount > Table_SKIP_THRESHOLD)
+ if (skipcount > Table_SKIP_THRESHOLD) {
+ delete liveentries;
goto donesearch;
+ }
}
}
+ delete liveentries;
}
donesearch:
;
updateExpectedSize();
}
}
-
+ delete indexer;
+
// If there is a gap, check to see if the server sent us
// everything->
if (firstSeqNum != (sequenceNumber + 1)) {
// must have a last message message-> If not then the server is
// hiding slots
if (!machineSet->isEmpty()) {
+ delete machineSet;
throw new Error("Missing record for machines: ");
}
}
-
+ delete machineSet;
// Update the size of our local block chain->
commitNewMaxSize();
if (transaction == NULL) {
// This is a new transaction that we dont have so make a new one
transaction = new Transaction();
+
+ // Add that part to the transaction
+ transaction->addPartDecode(part);
// Insert this new transaction into the live tables
liveTransactionBySequenceNumberTable->put(part->getSequenceNumber(), transaction);
- liveTransactionByTransactionIdTable->put(new Pair<int64_t, int64_t>(part->getTransactionId()), transaction);
+ liveTransactionByTransactionIdTable->put(transaction->getId(), 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();
+ {
+ SetIterator<int64_t, Hashtable<Pair<int64_t, int32_t> *, TransactionPart *, uintptr_t, 0, pairHashFunction, pairEquals> *> *partsit = getKeyIterator(newTransactionParts);
+ while (partsit->hasNext()) {
+ int64_t machineId = partsit->next();
+ Hashtable<Pair<int64_t, int32_t> *, TransactionPart *, uintptr_t, 0, pairHashFunction, pairEquals> *parts = newTransactionParts->get(machineId);
+ delete parts;
+ }
+ delete partsit;
+ newTransactionParts->clear();
+ }
}
void Table::arbitrateFromServer() {
-
if (liveTransactionBySequenceNumberTable->size() == 0) {
// Nothing to arbitrate on so move on
return;
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 *, uintptr_t, 0, hashString, StringEquals> *speculativeTableTmp = new Hashtable<IoTString *, KeyValue *, uintptr_t, 0, hashString, StringEquals>();
// The last transaction arbitrated on
int64_t lastTransactionCommitted = -1;
continue;
}
-
if (!transaction->isComplete()) {
// Will arbitrate in incorrect order if we continue so just break
// Most likely this
break;
}
-
// update the largest transaction seen by arbitrator from server
if (!lastTransactionSeenFromMachineFromServer->contains(transaction->getMachineId())) {
lastTransactionSeenFromMachineFromServer->put(transaction->getMachineId(), transaction->getClientLocalSequenceNumber());
if (transaction->evaluateGuard(committedKeyValueTable, speculativeTableTmp, NULL)) {
// Guard evaluated as true
-
// Update the local changes so we can make the commit
SetIterator<KeyValue *, KeyValue *> *kvit = transaction->getKeyValueUpdateSet()->iterator();
while (kvit->hasNext()) {
localArbitrationSequenceNumber++;
// Add all the new keys to the commit
- SetIterator<IoTString *, KeyValue *> *spit = getKeyIterator(speculativeTableTmp);
+ SetIterator<IoTString *, KeyValue *, uintptr_t, 0, hashString, StringEquals> *spit = getKeyIterator(speculativeTableTmp);
while (spit->hasNext()) {
IoTString *string = spit->next();
KeyValue *kv = speculativeTableTmp->get(string);
newCommit->addKV(kv);
}
delete spit;
-
+
// create the commit parts
newCommit->createCommitParts();
processEntry(commitPart);
}
}
+ delete speculativeTableTmp;
if ((newCommit != NULL) || (generatedAborts->size() > 0)) {
ArbitrationRound *arbitrationRound = new ArbitrationRound(newCommit, generatedAborts);
}
/**
- * Compacts the arbitration data my merging commits and aggregating
+ * Compacts the arbitration data by merging commits and aggregating
* aborts so that a single large push of commits can be done instead
* of many small updates
*/
bool gotNewCommit = false;
uint numberToDelete = 1;
+
while (numberToDelete < pendingSendArbitrationRounds->size()) {
ArbitrationRound *round = pendingSendArbitrationRounds->get(pendingSendArbitrationRounds->size() - numberToDelete - 1);
newSize += round->getAbortsCount();
if (newSize > ArbitrationRound_MAX_PARTS) {
- // Cant compact since it would be too large
+ // Can't compact since it would be too large
+ if (lastRound->getCommit() != newCommit &&
+ round->getCommit() != newCommit)
+ delete newCommit;
break;
}
-
// Set the new compacted part
+ if (lastRound->getCommit() == newCommit)
+ lastRound->setCommit(NULL);
+ if (round->getCommit() == newCommit)
+ round->setCommit(NULL);
+
+ if (lastRound->getCommit() != NULL) {
+ Commit * oldcommit = lastRound->getCommit();
+ lastRound->setCommit(NULL);
+ delete oldcommit;
+ }
lastRound->setCommit(newCommit);
lastRound->addAborts(round->getAborts());
gotNewCommit = true;
if (numberToDelete != 1) {
// If there is a compaction
// Delete the previous pieces that are now in the new compacted piece
- if (numberToDelete == pendingSendArbitrationRounds->size()) {
- pendingSendArbitrationRounds->clear();
- } else {
- for (uint i = 0; i < numberToDelete; i++) {
- pendingSendArbitrationRounds->removeIndex(pendingSendArbitrationRounds->size() - 1);
- }
+ for (uint i = 2; i <= numberToDelete; i++) {
+ delete pendingSendArbitrationRounds->get(pendingSendArbitrationRounds->size()-i);
}
+ pendingSendArbitrationRounds->setSize(pendingSendArbitrationRounds->size() - numberToDelete);
- // Add the new compacted into the pending to send list
pendingSendArbitrationRounds->add(lastRound);
// Should reinsert into the commit processor
* transactions
*/
bool Table::updateCommittedTable() {
-
if (newCommitParts->size() == 0) {
// Nothing new to process
return false;
commit->addPartDecode(part);
}
delete pairit;
+ delete parts;
}
delete partsit;
SetIterator<int64_t, Hashtable<int64_t, Commit *> *> *liveit = getKeyIterator(liveCommitsTable);
while (liveit->hasNext()) {
int64_t arbitratorId = liveit->next();
-
// Get all the commits for a specific arbitrator
Hashtable<int64_t, Commit *> *commitForClientTable = liveCommitsTable->get(arbitratorId);
for (uint i = 0; i < commitSequenceNumbers->size(); i++) {
int64_t commitSequenceNumber = commitSequenceNumbers->get(i);
Commit *commit = commitForClientTable->get(commitSequenceNumber);
-
// Special processing if a commit is not complete
if (!commit->isComplete()) {
if (i == (commitSequenceNumbers->size() - 1)) {
// Delete it and move on
commit->setDead();
commitForClientTable->remove(commit->getSequenceNumber());
+ delete commit;
continue;
}
}
// We have already seen this commit before so need to do the
// full processing on this commit
if (commit->getSequenceNumber() <= lastCommitSeenSequenceNumber) {
-
// Update the last transaction that was updated if we can
if (commit->getTransactionSequenceNumber() != -1) {
int64_t lastTransactionNumber = lastArbitratedTransactionNumberByArbitratorTable->get(commit->getMachineId());
lastArbitratedTransactionNumberByArbitratorTable->put(commit->getMachineId(), commit->getTransactionSequenceNumber());
}
}
-
continue;
}
// have live values for their keys
Hashset<Commit *> *commitsToEdit = new Hashset<Commit *>();
{
- SetIterator<KeyValue *, KeyValue *, uintptr_t, 0, hashKeyValue, equalsKeyValue> *kvit = commit->getKeyValueUpdateSet()->iterator();
+ SetIterator<KeyValue *, KeyValue *, uintptr_t, 0> *kvit = commit->getKeyValueUpdateSet()->iterator();
while (kvit->hasNext()) {
KeyValue *kv = kvit->next();
Commit *commit = liveCommitsByKeyTable->get(kv->getKey());
// Update which keys in the old commits are still live
{
- SetIterator<KeyValue *, KeyValue *, uintptr_t, 0, hashKeyValue, equalsKeyValue> *kvit = commit->getKeyValueUpdateSet()->iterator();
+ SetIterator<KeyValue *, KeyValue *, uintptr_t, 0> *kvit = commit->getKeyValueUpdateSet()->iterator();
while (kvit->hasNext()) {
KeyValue *kv = kvit->next();
previousCommit->invalidateKey(kv->getKey());
// if the commit is now dead then remove it
if (!previousCommit->isLive()) {
commitForClientTable->remove(previousCommit->getSequenceNumber());
+ delete previousCommit;
}
}
}
delete commitit;
+ delete commitsToEdit;
// Update the last seen sequence number from this arbitrator
if (lastCommitSeenSequenceNumberByArbitratorTable->contains(commit->getMachineId())) {
// Update the committed table of keys and which commit is using which key
{
- SetIterator<KeyValue *, KeyValue *, uintptr_t, 0, hashKeyValue, equalsKeyValue> *kvit = commit->getKeyValueUpdateSet()->iterator();
+ SetIterator<KeyValue *, KeyValue *, uintptr_t, 0> *kvit = commit->getKeyValueUpdateSet()->iterator();
while (kvit->hasNext()) {
KeyValue *kv = kvit->next();
committedKeyValueTable->put(kv->getKey(), kv);
Transaction *transaction = liveTransactionBySequenceNumberTable->get(key);
// Check if the transaction is dead
- if (lastArbitratedTransactionNumberByArbitratorTable->contains(transaction->getArbitrator()) && lastArbitratedTransactionNumberByArbitratorTable->get(transaction->getArbitrator() >= transaction->getSequenceNumber())) {
+ if (lastArbitratedTransactionNumberByArbitratorTable->contains(transaction->getArbitrator())
+ && lastArbitratedTransactionNumberByArbitratorTable->get(transaction->getArbitrator()) >= transaction->getSequenceNumber()) {
// Set dead the transaction
transaction->setDead();
// Remove the transaction from the live table
iter->remove();
liveTransactionByTransactionIdTable->remove(transaction->getId());
+ delete transaction;
}
}
delete iter;
TransactionStatus *status = outstandingTransactionStatus->get(key);
// Check if the transaction is dead
- if (lastArbitratedTransactionNumberByArbitratorTable->contains(status->getTransactionArbitrator()) && (lastArbitratedTransactionNumberByArbitratorTable->get(status->getTransactionArbitrator()) >= status->getTransactionSequenceNumber())) {
-
+ if (lastArbitratedTransactionNumberByArbitratorTable->contains(status->getTransactionArbitrator())
+ && (lastArbitratedTransactionNumberByArbitratorTable->get(status->getTransactionArbitrator()) >= status->getTransactionSequenceNumber())) {
// Set committed
status->setStatus(TransactionStatus_StatusCommitted);
if (deviceWatchSet->isEmpty()) {
// This rejected message has been seen by all the clients so
entry->setDead();
+ delete deviceWatchSet;
} else {
// We need to watch this rejected message
entry->setWatchSet(deviceWatchSet);
void Table::processEntry(CommitPart *entry) {
// Update the last transaction that was updated if we can
if (entry->getTransactionSequenceNumber() != -1) {
- if (!lastArbitratedTransactionNumberByArbitratorTable->contains(entry->getMachineId() || lastArbitratedTransactionNumberByArbitratorTable->get(entry->getMachineId()) < entry->getTransactionSequenceNumber())) {
+ if (!lastArbitratedTransactionNumberByArbitratorTable->contains(entry->getMachineId()) ||
+ lastArbitratedTransactionNumberByArbitratorTable->get(entry->getMachineId()) < entry->getTransactionSequenceNumber()) {
lastArbitratedTransactionNumberByArbitratorTable->put(entry->getMachineId(), entry->getTransactionSequenceNumber());
}
}
}
// Update the part and set dead ones we have already seen (got a
// rescued version)
- CommitPart *previouslySeenPart = commitPart->put(new Pair<int64_t, int32_t>(entry->getPartId()), entry);
+ CommitPart *previouslySeenPart = commitPart->put(entry->getPartId(), entry);
if (previouslySeenPart != NULL) {
previouslySeenPart->setDead();
}
projects / iotcloud.git / blobdiff