dash/src/evo/specialtx.h

48 lines
1.4 KiB
C++

// Copyright (c) 2018-2024 The Dash Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_EVO_SPECIALTX_H
#define BITCOIN_EVO_SPECIALTX_H
#include <primitives/transaction.h>
#include <serialize.h>
#include <streams.h>
#include <uint256.h>
#include <version.h>
#include <optional>
#include <vector>
template <typename T>
std::optional<T> GetTxPayload(const std::vector<unsigned char>& payload)
{
CDataStream ds(payload, SER_NETWORK, PROTOCOL_VERSION);
try {
T obj;
ds >> obj;
return ds.empty() ? std::make_optional(std::move(obj)) : std::nullopt;
} catch (const std::exception& e) {
return std::nullopt;
}
}
template <typename T, typename TxType>
std::optional<T> GetTxPayload(const TxType& tx, bool assert_type = true)
{
if (assert_type) { ASSERT_IF_DEBUG(tx.nType == T::SPECIALTX_TYPE); }
if (tx.nType != T::SPECIALTX_TYPE) return std::nullopt;
return GetTxPayload<T>(tx.vExtraPayload);
}
template <typename T>
void SetTxPayload(CMutableTransaction& tx, const T& payload)
{
CDataStream ds(SER_NETWORK, PROTOCOL_VERSION);
ds << payload;
tx.vExtraPayload.assign(UCharCast(ds.data()), UCharCast(ds.data() + ds.size()));
}
uint256 CalcTxInputsHash(const CTransaction& tx);
#endif // BITCOIN_EVO_SPECIALTX_H