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