You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
3.0 KiB
86 lines
3.0 KiB
// Copyright (c) 2009-2010 Satoshi Nakamoto
|
|
// Copyright (c) 2009-2013 The Bitcoin Core developers
|
|
// Distributed under the MIT software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
#ifndef BITCOIN_UNDO_H
|
|
#define BITCOIN_UNDO_H
|
|
|
|
#include "compressor.h"
|
|
#include "primitives/transaction.h"
|
|
#include "serialize.h"
|
|
|
|
/** Undo information for a CTxIn
|
|
*
|
|
* Contains the prevout's CTxOut being spent, and if this was the
|
|
* last output of the affected transaction, its metadata as well
|
|
* (coinbase or not, height, transaction version)
|
|
*/
|
|
class CTxInUndo
|
|
{
|
|
public:
|
|
CTxOut txout; // the txout data before being spent
|
|
bool fCoinBase; // if the outpoint was the last unspent: whether it belonged to a coinbase
|
|
unsigned int nHeight; // if the outpoint was the last unspent: its height
|
|
int nVersion; // if the outpoint was the last unspent: its version
|
|
|
|
CTxInUndo() : txout(), fCoinBase(false), nHeight(0), nVersion(0) {}
|
|
CTxInUndo(const CTxOut &txoutIn, bool fCoinBaseIn = false, unsigned int nHeightIn = 0, int nVersionIn = 0) : txout(txoutIn), fCoinBase(fCoinBaseIn), nHeight(nHeightIn), nVersion(nVersionIn) { }
|
|
|
|
unsigned int GetSerializeSize(int nType, int nVersion) const {
|
|
return ::GetSerializeSize(VARINT(nHeight*2+(fCoinBase ? 1 : 0)), nType, nVersion) +
|
|
(nHeight > 0 ? ::GetSerializeSize(VARINT(this->nVersion), nType, nVersion) : 0) +
|
|
::GetSerializeSize(CTxOutCompressor(REF(txout)), nType, nVersion);
|
|
}
|
|
|
|
template<typename Stream>
|
|
void Serialize(Stream &s, int nType, int nVersion) const {
|
|
::Serialize(s, VARINT(nHeight*2+(fCoinBase ? 1 : 0)), nType, nVersion);
|
|
if (nHeight > 0)
|
|
::Serialize(s, VARINT(this->nVersion), nType, nVersion);
|
|
::Serialize(s, CTxOutCompressor(REF(txout)), nType, nVersion);
|
|
}
|
|
|
|
template<typename Stream>
|
|
void Unserialize(Stream &s, int nType, int nVersion) {
|
|
unsigned int nCode = 0;
|
|
::Unserialize(s, VARINT(nCode), nType, nVersion);
|
|
nHeight = nCode / 2;
|
|
fCoinBase = nCode & 1;
|
|
if (nHeight > 0)
|
|
::Unserialize(s, VARINT(this->nVersion), nType, nVersion);
|
|
::Unserialize(s, REF(CTxOutCompressor(REF(txout))), nType, nVersion);
|
|
}
|
|
};
|
|
|
|
/** Undo information for a CTransaction */
|
|
class CTxUndo
|
|
{
|
|
public:
|
|
// undo information for all txins
|
|
std::vector<CTxInUndo> vprevout;
|
|
|
|
ADD_SERIALIZE_METHODS;
|
|
|
|
template <typename Stream, typename Operation>
|
|
inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
|
|
READWRITE(vprevout);
|
|
}
|
|
};
|
|
|
|
/** Undo information for a CBlock */
|
|
class CBlockUndo
|
|
{
|
|
public:
|
|
std::vector<CTxUndo> vtxundo; // for all but the coinbase
|
|
|
|
ADD_SERIALIZE_METHODS;
|
|
|
|
template <typename Stream, typename Operation>
|
|
inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
|
|
READWRITE(vtxundo);
|
|
}
|
|
};
|
|
|
|
#endif // BITCOIN_UNDO_H
|