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CachedTransaction.cpp
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// Copyright (c) 2012-2017, The CryptoNote developers, The Bytecoin developers
//
// This file is part of Bytecoin.
//
// Bytecoin is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Bytecoin is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Bytecoin. If not, see <http://www.gnu.org/licenses/>.
#include "CachedTransaction.h"
#include <Common/Varint.h>
#include "CryptoNoteConfig.h"
#include "CryptoNoteTools.h"
using namespace Crypto;
using namespace CryptoNote;
CachedTransaction::CachedTransaction(Transaction&& transaction) : transaction(std::move(transaction)) {
}
CachedTransaction::CachedTransaction(const Transaction& transaction) : transaction(transaction) {
}
CachedTransaction::CachedTransaction(const BinaryArray& transactionBinaryArray) : transactionBinaryArray(transactionBinaryArray) {
if (!fromBinaryArray<Transaction>(transaction, this->transactionBinaryArray.get())) {
throw std::runtime_error("CachedTransaction::CachedTransaction(BinaryArray&&), deserealization error.");
}
}
const Transaction& CachedTransaction::getTransaction() const {
return transaction;
}
const Crypto::Hash& CachedTransaction::getTransactionHash() const {
if (!transactionHash.is_initialized()) {
transactionHash = getBinaryArrayHash(getTransactionBinaryArray());
}
return transactionHash.get();
}
const Crypto::Hash& CachedTransaction::getTransactionPrefixHash() const {
if (!transactionPrefixHash.is_initialized()) {
transactionPrefixHash = getObjectHash(static_cast<const TransactionPrefix&>(transaction));
}
return transactionPrefixHash.get();
}
const BinaryArray& CachedTransaction::getTransactionBinaryArray() const {
if (!transactionBinaryArray.is_initialized()) {
transactionBinaryArray = toBinaryArray(transaction);
}
return transactionBinaryArray.get();
}
uint64_t CachedTransaction::getTransactionFee() const {
if (!transactionFee.is_initialized()) {
uint64_t summaryInputAmount = 0;
uint64_t summaryOutputAmount = 0;
for (auto& out : transaction.outputs) {
summaryOutputAmount += out.amount;
}
for (auto& in : transaction.inputs) {
if (in.type() == typeid(KeyInput)) {
summaryInputAmount += boost::get<KeyInput>(in).amount;
} else if (in.type() == typeid(BaseInput)) {
return 0;
} else {
assert(false && "Unknown out type");
}
}
transactionFee = summaryInputAmount - summaryOutputAmount;
}
return transactionFee.get();
}