edits
[iotcloud.git] / version2 / src / C / Transaction.cc
index 0cee8395a43a8b2fe67c7b2cc0a7c3d18dd52cf8..1f862df5c42a46e392f0e4663737427baa7c60bd 100644 (file)
+#include "Transaction.h"
+#include "TransactionPart.h"
+#include "KeyValue.h"
+#include "ByteBuffer.h"
+#include "IoTString.h"
+#include "TransactionStatus.h"
+
+Transaction::Transaction() :
+       parts(new Vector<TransactionPart *>()),
+       partCount(0),
+       missingParts(NULL),
+       partsPendingSend(new Vector<int32_t>()),
+       fldisComplete(false),
+       hasLastPart(false),
+       keyValueGuardSet(new Hashset<KeyValue *>()),
+       keyValueUpdateSet(new Hashset<KeyValue *>()),
+       isDead(false),
+       sequenceNumber(-1),
+       clientLocalSequenceNumber(-1),
+       arbitratorId(-1),
+       machineId(-1),
+       transactionId(Pair<int64_t, int64_t>(0,0)),
+       hadServerFailure(false) {
+}
 
+void Transaction::addPartEncode(TransactionPart *newPart) {
+       TransactionPart *old = parts->setExpand(newPart->getPartNumber(), newPart);
+       if (old == NULL)
+               partCount++;
+       partsPendingSend->add(newPart->getPartNumber());
 
-class Transaction {
-
-       Hashtable<int32_t, TransactionPart> parts = NULL;
-       Set<int32_t> missingParts = NULL;
-       Vector<int32_t> partsPendingSend = NULL;
-       bool isComplete = false;
-       bool hasLastPart = false;
-       Set<KeyValue> keyValueGuardSet = NULL;
-       Set<KeyValue> keyValueUpdateSet = NULL;
-       bool isDead = false;
-       int64_t sequenceNumber = -1;
-       int64_t clientLocalSequenceNumber = -1;
-       int64_t arbitratorId = -1;
-       int64_t machineId = -1;
-       Pair<int64_t, int64_t> transactionId = NULL;
-
-       int nextPartToSend = 0;
-       bool didSendAPartToServer = false;
-
-       TransactionStatus transactionStatus = NULL;
-
-       bool hadServerFailure = false;
-
-       Transaction() {
-               parts = new Hashtable<int32_t, TransactionPart>();
-               keyValueGuardSet = new HashSet<KeyValue>();
-               keyValueUpdateSet = new HashSet<KeyValue>();
-               partsPendingSend = new Vector<int32_t>();
-       }
-
-       void addPartEncode(TransactionPart newPart) {
-               parts.put(newPart.getPartNumber(), newPart);
-               partsPendingSend.add(newPart.getPartNumber());
+       sequenceNumber = newPart->getSequenceNumber();
+       arbitratorId = newPart->getArbitratorId();
+       transactionId = newPart->getTransactionId();
+       clientLocalSequenceNumber = newPart->getClientLocalSequenceNumber();
+       machineId = newPart->getMachineId();
 
-               sequenceNumber = newPart.getSequenceNumber();
-               arbitratorId = newPart.getArbitratorId();
-               transactionId = newPart.getTransactionId();
-               clientLocalSequenceNumber = newPart.getClientLocalSequenceNumber();
-               machineId = newPart.getMachineId();
+       fldisComplete = true;
+}
 
-               isComplete = true;
+void Transaction::addPartDecode(TransactionPart *newPart) {
+       if (isDead) {
+               // If dead then just kill this part and move on
+               newPart->setDead();
+               return;
        }
 
-       void addPartDecode(TransactionPart newPart) {
-
-               if (isDead) {
-                       // If dead then just kill this part and move on
-                       newPart.setDead();
-                       return;
-               }
-
-               sequenceNumber = newPart.getSequenceNumber();
-               arbitratorId = newPart.getArbitratorId();
-               transactionId = newPart.getTransactionId();
-               clientLocalSequenceNumber = newPart.getClientLocalSequenceNumber();
-               machineId = newPart.getMachineId();
-
-               TransactionPart previoslySeenPart = parts.put(newPart.getPartNumber(), newPart);
-
-               if (previoslySeenPart != NULL) {
-                       // Set dead the old one since the new one is a rescued version of this part
-                       previoslySeenPart.setDead();
-               } else if (newPart.isLastPart()) {
-                       missingParts = new HashSet<int32_t>();
-                       hasLastPart = true;
-
-                       for (int i = 0; i < newPart.getPartNumber(); i++) {
-                               if (parts.get(i) == NULL) {
-                                       missingParts.add(i);
-                               }
+       sequenceNumber = newPart->getSequenceNumber();
+       arbitratorId = newPart->getArbitratorId();
+       transactionId = newPart->getTransactionId();
+       clientLocalSequenceNumber = newPart->getClientLocalSequenceNumber();
+       machineId = newPart->getMachineId();
+
+       TransactionPart *previouslySeenPart = parts->setExpand(newPart->getPartNumber(), newPart);
+       if (previouslySeenPart == NULL)
+               partCount++;
+
+       if (previouslySeenPart != NULL) {
+               // Set dead the old one since the new one is a rescued version of this part
+               previouslySeenPart->setDead();
+       } else if (newPart->isLastPart()) {
+               missingParts = new Hashset<int32_t>();
+               hasLastPart = true;
+
+               for (int i = 0; i < newPart->getPartNumber(); i++) {
+                       if (parts->get(i) == NULL) {
+                               missingParts->add(i);
                        }
                }
+       }
 
-               if (!isComplete && hasLastPart) {
+       if (!fldisComplete && hasLastPart) {
 
-                       // We have seen this part so remove it from the set of missing parts
-                       missingParts.remove(newPart.getPartNumber());
+               // We have seen this part so remove it from the set of missing parts
+               missingParts->remove(newPart->getPartNumber());
 
-                       // Check if all the parts have been seen
-                       if (missingParts.size() == 0) {
+               // Check if all the parts have been seen
+               if (missingParts->size() == 0) {
 
-                               // We have all the parts
-                               isComplete = true;
+                       // We have all the parts
+                       fldisComplete = true;
 
-                               // Decode all the parts and create the key value guard and update sets
-                               decodeTransactionData();
-                       }
+                       // Decode all the parts and create the key value guard and update sets
+                       decodeTransactionData();
                }
        }
+}
 
-       void addUpdateKV(KeyValue kv) {
-               keyValueUpdateSet.add(kv);
-       }
+void Transaction::addUpdateKV(KeyValue *kv) {
+       keyValueUpdateSet->add(kv);
+}
 
-       void addGuardKV(KeyValue kv) {
-               keyValueGuardSet.add(kv);
-       }
+void Transaction::addGuardKV(KeyValue *kv) {
+       keyValueGuardSet->add(kv);
+}
 
 
-       int64_t getSequenceNumber() {
-               return sequenceNumber;
-       }
+int64_t Transaction::getSequenceNumber() {
+       return sequenceNumber;
+}
 
-       void setSequenceNumber(int64_t _sequenceNumber) {
-               sequenceNumber = _sequenceNumber;
+void Transaction::setSequenceNumber(int64_t _sequenceNumber) {
+       sequenceNumber = _sequenceNumber;
 
-               for (int32_t i : parts.keySet()) {
-                       parts.get(i).setSequenceNumber(sequenceNumber);
-               }
+       for (uint32_t i = 0; i < parts->size(); i++) {
+               TransactionPart *tp = parts->get(i);
+               if (tp != NULL)
+                       tp->setSequenceNumber(sequenceNumber);
        }
+}
 
-       int64_t getClientLocalSequenceNumber() {
-               return clientLocalSequenceNumber;
-       }
+int64_t Transaction::getClientLocalSequenceNumber() {
+       return clientLocalSequenceNumber;
+}
 
-       Hashtable<int32_t, TransactionPart> getParts() {
-               return parts;
-       }
+Vector<TransactionPart *> *Transaction::getParts() {
+       return parts;
+}
 
-       bool didSendAPartToServer() {
-               return didSendAPartToServer;
-       }
+bool Transaction::didSendAPartToServer() {
+       return flddidSendAPartToServer;
+}
 
-       void resetNextPartToSend() {
-               nextPartToSend = 0;
-       }
+void Transaction::resetNextPartToSend() {
+       nextPartToSend = 0;
+}
 
-       TransactionPart getNextPartToSend() {
-               if ((partsPendingSend.size() == 0) || (partsPendingSend.size() == nextPartToSend)) {
-                       return NULL;
-               }
-               TransactionPart part = parts.get(partsPendingSend.get(nextPartToSend));
-               nextPartToSend++;
-               return part;
+TransactionPart *Transaction::getNextPartToSend() {
+       if ((partsPendingSend->size() == 0) || (partsPendingSend->size() == nextPartToSend)) {
+               return NULL;
        }
+       TransactionPart *part = parts->get(partsPendingSend->get(nextPartToSend));
+       nextPartToSend++;
+       return part;
+}
 
 
-       void setServerFailure() {
-               hadServerFailure = true;
-       }
+void Transaction::setServerFailure() {
+       hadServerFailure = true;
+}
 
-       bool getServerFailure() {
-               return hadServerFailure;
-       }
+bool Transaction::getServerFailure() {
+       return hadServerFailure;
+}
 
 
-       void resetServerFailure() {
-               hadServerFailure = false;
-       }
+void Transaction::resetServerFailure() {
+       hadServerFailure = false;
+}
 
 
-       void setTransactionStatus(TransactionStatus _transactionStatus) {
-               transactionStatus = _transactionStatus;
-       }
+void Transaction::setTransactionStatus(TransactionStatus *_transactionStatus) {
+       transactionStatus = _transactionStatus;
+}
 
-       TransactionStatus getTransactionStatus() {
-               return transactionStatus;
-       }
+TransactionStatus *Transaction::getTransactionStatus() {
+       return transactionStatus;
+}
 
-       void removeSentParts(Vector<int32_t> sentParts) {
-               nextPartToSend = 0;
-               if (partsPendingSend.removeAll(sentParts))
-               {
-                       didSendAPartToServer = true;
-                       transactionStatus.setTransactionSequenceNumber(sequenceNumber);
+void Transaction::removeSentParts(Vector<int32_t> *sentParts) {
+       nextPartToSend = 0;
+       bool changed = false;
+       uint lastusedindex = 0;
+       for (uint i = 0; i < partsPendingSend->size(); i++) {
+               int32_t parti = partsPendingSend->get(i);
+               for (uint j = 0; j < sentParts->size(); j++) {
+                       int32_t partj = sentParts->get(j);
+                       if (parti == partj) {
+                               changed = true;
+                               goto NextElement;
+                       }
                }
+               partsPendingSend->set(lastusedindex++, parti);
+NextElement:
+               ;
        }
-
-       bool didSendAllParts() {
-               return partsPendingSend.isEmpty();
+       if (changed) {
+               partsPendingSend->setSize(lastusedindex);
+               flddidSendAPartToServer = true;
+               transactionStatus->setTransactionSequenceNumber(sequenceNumber);
        }
+}
 
-       Set<KeyValue> getKeyValueUpdateSet() {
-               return keyValueUpdateSet;
-       }
+bool Transaction::didSendAllParts() {
+       return partsPendingSend->isEmpty();
+}
 
-       int getNumberOfParts() {
-               return parts.size();
-       }
+Hashset<KeyValue *> *Transaction::getKeyValueUpdateSet() {
+       return keyValueUpdateSet;
+}
 
-       int64_t getMachineId() {
-               return machineId;
-       }
+int Transaction::getNumberOfParts() {
+       return partCount;
+}
 
-       int64_t getArbitrator() {
-               return arbitratorId;
-       }
+int64_t Transaction::getMachineId() {
+       return machineId;
+}
 
-       bool isComplete() {
-               return isComplete;
-       }
+int64_t Transaction::getArbitrator() {
+       return arbitratorId;
+}
 
-       Pair<int64_t, int64_t> getId() {
-               return transactionId;
-       }
+bool Transaction::isComplete() {
+       return fldisComplete;
+}
 
-       void setDead() {
-               if (isDead) {
-                       // Already dead
-                       return;
-               }
+Pair<int64_t, int64_t> *Transaction::getId() {
+       return &transactionId;
+}
 
+void Transaction::setDead() {
+       if (!isDead) {
                // Set dead
                isDead = true;
-
                // Make all the parts of this transaction dead
-               for (int32_t partNumber : parts.keySet()) {
-                       TransactionPart part = parts.get(partNumber);
-                       part.setDead();
+               for (uint32_t partNumber = 0; partNumber < parts->size(); partNumber++) {
+                       TransactionPart *part = parts->get(partNumber);
+                       if (part != NULL)
+                               part->setDead();
                }
        }
+}
 
-       TransactionPart getPart(int index) {
-               return parts.get(index);
-       }
-
-       void decodeTransactionData() {
+TransactionPart *Transaction::getPart(int index) {
+       return parts->get(index);
+}
 
-               // Calculate the size of the data section
-               int dataSize = 0;
-               for (int i = 0; i < parts.keySet().size(); i++) {
-                       TransactionPart tp = parts.get(i);
-                       dataSize += tp.getDataSize();
-               }
+void Transaction::decodeTransactionData() {
+       // Calculate the size of the data section
+       int dataSize = 0;
+       for (uint i = 0; i < parts->size(); i++) {
+               TransactionPart *tp = parts->get(i);
+               dataSize += tp->getDataSize();
+       }
 
-               char[] combinedData = new char[dataSize];
-               int currentPosition = 0;
+       Array<char> *combinedData = new Array<char>(dataSize);
+       int currentPosition = 0;
 
-               // Stitch all the data sections together
-               for (int i = 0; i < parts.keySet().size(); i++) {
-                       TransactionPart tp = parts.get(i);
-                       System.arraycopy(tp.getData(), 0, combinedData, currentPosition, tp.getDataSize());
-                       currentPosition += tp.getDataSize();
-               }
-
-               // Decoder Object
-               ByteBuffer bbDecode = ByteBuffer.wrap(combinedData);
+       // Stitch all the data sections together
+       for (uint i = 0; i < parts->size(); i++) {
+               TransactionPart *tp = parts->get(i);
+               System_arraycopy(tp->getData(), 0, combinedData, currentPosition, tp->getDataSize());
+               currentPosition += tp->getDataSize();
+       }
 
-               // Decode how many key value pairs need to be decoded
-               int numberOfKVGuards = bbDecode.getInt();
-               int numberOfKVUpdates = bbDecode.getInt();
+       // Decoder Object
+       ByteBuffer *bbDecode = ByteBuffer_wrap(combinedData);
 
-               // Decode all the guard key values
-               for (int i = 0; i < numberOfKVGuards; i++) {
-                       KeyValue kv = (KeyValue)KeyValue.decode(bbDecode);
-                       keyValueGuardSet.add(kv);
-               }
+       // Decode how many key value pairs need to be decoded
+       int numberOfKVGuards = bbDecode->getInt();
+       int numberOfKVUpdates = bbDecode->getInt();
 
-               // Decode all the updates key values
-               for (int i = 0; i < numberOfKVUpdates; i++) {
-                       KeyValue kv = (KeyValue)KeyValue.decode(bbDecode);
-                       keyValueUpdateSet.add(kv);
-               }
+       // Decode all the guard key values
+       for (int i = 0; i < numberOfKVGuards; i++) {
+               KeyValue *kv = (KeyValue *)KeyValue_decode(bbDecode);
+               keyValueGuardSet->add(kv);
        }
 
-       bool evaluateGuard(Hashtable<IoTString, KeyValue> committedKeyValueTable, Hashtable<IoTString, KeyValue> speculatedKeyValueTable, Hashtable<IoTString, KeyValue> pendingTransactionSpeculatedKeyValueTable) {
-               for (KeyValue kvGuard : keyValueGuardSet) {
-
-                       // First check if the key is in the speculative table, this is the value of the latest assumption
-                       KeyValue kv = NULL;
+       // Decode all the updates key values
+       for (int i = 0; i < numberOfKVUpdates; i++) {
+               KeyValue *kv = (KeyValue *)KeyValue_decode(bbDecode);
+               keyValueUpdateSet->add(kv);
+       }
+}
 
-                       // If we have a speculation table then use it first
-                       if (pendingTransactionSpeculatedKeyValueTable != NULL) {
-                               kv = pendingTransactionSpeculatedKeyValueTable.get(kvGuard.getKey());
-                       }
+bool Transaction::evaluateGuard(Hashtable<IoTString *, KeyValue *, uintptr_t, 0, hashString, StringEquals> *committedKeyValueTable, Hashtable<IoTString *, KeyValue *, uintptr_t, 0, hashString, StringEquals> *speculatedKeyValueTable, Hashtable<IoTString *, KeyValue *, uintptr_t, 0, hashString, StringEquals> *pendingTransactionSpeculatedKeyValueTable) {
+       SetIterator<KeyValue *, KeyValue *> *kvit = keyValueGuardSet->iterator();
+       while (kvit->hasNext()) {
+               KeyValue *kvGuard = kvit->next();
+               // First check if the key is in the speculative table, this is the value of the latest assumption
+               KeyValue *kv = NULL;
 
-                       // If we have a speculation table then use it first
-                       if ((kv == NULL) && (speculatedKeyValueTable != NULL)) {
-                               kv = speculatedKeyValueTable.get(kvGuard.getKey());
-                       }
+               // If we have a speculation table then use it first
+               if (pendingTransactionSpeculatedKeyValueTable != NULL) {
+                       kv = pendingTransactionSpeculatedKeyValueTable->get(kvGuard->getKey());
+               }
 
-                       if (kv == NULL) {
-                               // if it is not in the speculative table then check the committed table and use that
-                               // value as our latest assumption
-                               kv = committedKeyValueTable.get(kvGuard.getKey());
-                       }
+               // If we have a speculation table then use it first
+               if ((kv == NULL) && (speculatedKeyValueTable != NULL)) {
+                       kv = speculatedKeyValueTable->get(kvGuard->getKey());
+               }
 
-                       if (kvGuard.getValue() != NULL) {
-                               if ((kv == NULL) || (!kvGuard.getValue().equals(kv.getValue()))) {
+               if (kv == NULL) {
+                       // if it is not in the speculative table then check the committed table and use that
+                       // value as our latest assumption
+                       kv = committedKeyValueTable->get(kvGuard->getKey());
+               }
 
+               if (kvGuard->getValue() != NULL) {
+                       if ((kv == NULL) || (!kvGuard->getValue()->equals(kv->getValue()))) {
 
-                                       if (kv != NULL) {
-                                               System.out.println(kvGuard.getValue() + "       " + kv.getValue());
-                                       } else {
-                                               System.out.println(kvGuard.getValue() + "       " + kv);
-                                       }
 
-                                       return false;
-                               }
-                       } else {
                                if (kv != NULL) {
-                                       return false;
+                                       printf("%s      %s\n", kvGuard->getKey()->internalBytes()->internalArray(), kv->getValue()->internalBytes()->internalArray());
+                               } else {
+                                       printf("%s      null\n", kvGuard->getValue()->internalBytes()->internalArray());
                                }
+                               delete kvit;
+                               return false;
+                       }
+               } else {
+                       if (kv != NULL) {
+                               delete kvit;
+                               return false;
                        }
                }
-               return true;
        }
+       delete kvit;
+       return true;
 }
+