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Transaction.cpp
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Transaction.cpp
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/*
* Transaction.cpp
*
* Created on: Nov 11, 2016
* Author: duclv
*/
#include "Transaction.h"
#include <stdio.h>
#include <iostream>
namespace std {
Transaction::Transaction() {
}
Transaction::~Transaction() {
}
vector<Transaction::transaction*>* Transaction::vecTransaction = new vector<Transaction::transaction*>();
vector<size_t>* Transaction::vecActiveTransaction = new vector<size_t>();
vector<size_t>* Transaction::vecWaitingTransaction = new vector<size_t>();
size_t Transaction::createTx() {
transaction* newTx = new transaction();
// current time in miliseconds
newTx->txnId = chrono::duration_cast < chrono::milliseconds
> (chrono::steady_clock::now().time_since_epoch()).count();
newTx->startTs = 0;
newTx->csn = 0;
newTx->status = TRANSACTION_STATUS::WAITING;
vecTransaction->push_back(newTx);
// return index to this new transaction
return vecTransaction->size() - 1;
}
void Transaction::startTx(size_t txIdx) {
transaction* tx = vecTransaction->at(txIdx);
tx->status = TRANSACTION_STATUS::STARTED;
tx->startTs = chrono::duration_cast < chrono::milliseconds
> (chrono::steady_clock::now().time_since_epoch()).count();
vecTransaction->at(txIdx) = tx;
//copy to active transaction
vecActiveTransaction->push_back(txIdx);
}
void Transaction::updateRid2Transaction(size_t txIdx, vector<size_t> vecRid) {
transaction* tx = vecTransaction->at(txIdx);
tx->vecRid = vecRid;
vecTransaction->at(txIdx) = tx;
}
uint64_t Transaction::getStartTimestamp(size_t txIdx) {
transaction* tx = vecTransaction->at(txIdx);
return tx->startTs;
}
uint64_t Transaction::getTimestampAsCSN() {
return chrono::duration_cast < chrono::milliseconds
> (chrono::steady_clock::now().time_since_epoch()).count();
}
void Transaction::commitTx(size_t txIdx, uint64_t csn) {
transaction* tx = vecTransaction->at(txIdx);
tx->status = TRANSACTION_STATUS::COMMITED;
tx->csn = csn;
vecTransaction->at(txIdx) = tx;
// remove in active transaction
for (size_t i = 0; i < vecActiveTransaction->size(); i++) {
if (vecActiveTransaction->at(i) == txIdx) {
vecActiveTransaction->erase(vecActiveTransaction->begin() + i);
break;
}
}
// remove in waiting list
for (size_t i = 0; i < vecWaitingTransaction->size(); i++) {
if (vecWaitingTransaction->at(i) == txIdx) {
vecWaitingTransaction->erase(vecWaitingTransaction->begin() + i);
break;
}
}
}
void Transaction::abortTx(size_t txIdx) {
transaction* tx = vecTransaction->at(txIdx);
tx->status = TRANSACTION_STATUS::ABORTED;
tx->csn = 0;
vecTransaction->at(txIdx) = tx;
// remove in active transaction
for (size_t i = 0; i < vecActiveTransaction->size(); i++) {
if (vecActiveTransaction->at(i) == txIdx) {
vecActiveTransaction->erase(vecActiveTransaction->begin() + i);
break;
}
}
}
vector<size_t> Transaction::listActiveTransaction() {
return *vecActiveTransaction;
}
void Transaction::addToWaitingList(size_t txIdx) {
transaction* tx = vecTransaction->at(txIdx);
tx->status = TRANSACTION_STATUS::WAITING;
tx->startTs = 0;
vecTransaction->at(txIdx) = tx;
vecWaitingTransaction->push_back(txIdx);
}
vector<size_t> Transaction::getWaitingList() {
return *vecWaitingTransaction;
}
void Transaction::setClient(size_t txIdx, ServerSocket* client) {
transaction* tx = vecTransaction->at(txIdx);
tx->client = client;
vecTransaction->at(txIdx) = tx;
}
void Transaction::setCommand(size_t txIdx, vector<string> command) {
transaction* tx = vecTransaction->at(txIdx);
tx->command = command;
vecTransaction->at(txIdx) = tx;
}
ServerSocket* Transaction::getClient(size_t txIdx) {
return vecTransaction->at(txIdx)->client;
}
vector<string> Transaction::getCommand(size_t txIdx) {
return vecTransaction->at(txIdx)->command;
}
Transaction::TRANSACTION_STATUS Transaction::getStatus(size_t txIdx) {
return vecTransaction->at(txIdx)->status;
}
vector<size_t> Transaction::getVecRid(size_t txIdx) {
return vecTransaction->at(txIdx)->vecRid;
}
} /* namespace std */