Line data    Source code

       1             : // Copyright (c) 2018-2024 The Dash Core developers
       2             : // Distributed under the MIT software license, see the accompanying
       3             : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4             : 
       5             : #ifndef BITCOIN_EVO_SPECIALTX_H
       6             : #define BITCOIN_EVO_SPECIALTX_H
       7             : 
       8             : #include <primitives/transaction.h>
       9             : #include <serialize.h>
      10             : #include <streams.h>
      11             : #include <uint256.h>
      12             : #include <version.h>
      13             : 
      14             : #include <optional>
      15             : #include <vector>
      16             : 
      17             : template <typename T>
      18      233196 : std::optional<T> GetTxPayload(const std::vector<unsigned char>& payload)
      19             : {
      20      233196 :     CDataStream ds(payload, SER_NETWORK, PROTOCOL_VERSION);
      21             :     try {
      22      233196 :         T obj;
      23      233196 :         ds >> obj;
      24      233196 :         return ds.empty() ? std::make_optional(std::move(obj)) : std::nullopt;
      25      174618 :     } catch (const std::exception& e) {
      26           0 :         return std::nullopt;
      27           0 :     }
      28      233196 : }
      29             : template <typename T, typename TxType>
      30      225761 : std::optional<T> GetTxPayload(const TxType& tx, bool assert_type = true)
      31             : {
      32      225761 :     if (assert_type) { ASSERT_IF_DEBUG(tx.nType == T::SPECIALTX_TYPE); }
      33      225761 :     if (tx.nType != T::SPECIALTX_TYPE) return std::nullopt;
      34      225761 :     return GetTxPayload<T>(tx.vExtraPayload);
      35      225761 : }
      36             : 
      37             : template <typename T>
      38       32908 : void SetTxPayload(CMutableTransaction& tx, const T& payload)
      39             : {
      40       32908 :     CDataStream ds(SER_NETWORK, PROTOCOL_VERSION);
      41       32908 :     ds << payload;
      42       32908 :     tx.vExtraPayload.assign(UCharCast(ds.data()), UCharCast(ds.data() + ds.size()));
      43       32908 : }
      44             : 
      45             : uint256 CalcTxInputsHash(const CTransaction& tx);
      46             : 
      47             : #endif // BITCOIN_EVO_SPECIALTX_H