src/wallet/feebumper.h

   1 // Copyright (c) 2017 The Bitcoin 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_WALLET_FEEBUMPER_H
   6 #define BITCOIN_WALLET_FEEBUMPER_H
   7
   8 #include <primitives/transaction.h>
   9
  10 class CWallet;
  11 class CWalletTx;
  12 class uint256;
  13 class CCoinControl;
  14 enum class FeeEstimateMode;
  15
  16 namespace feebumper {
  17
  18 enum class Result
  19 {
  20     OK,
  21     INVALID_ADDRESS_OR_KEY,
  22     INVALID_REQUEST,
  23     INVALID_PARAMETER,
  24     WALLET_ERROR,
  25     MISC_ERROR,
  26 };
  27
  28 //! Return whether transaction can be bumped.
  29 bool TransactionCanBeBumped(CWallet* wallet, const uint256& txid);
  30
  31 //! Create bumpfee transaction.
  32 Result CreateTransaction(const CWallet* wallet,
  33                          const uint256& txid,
  34                          const CCoinControl& coin_control,
  35                          CAmount total_fee,
  36                          std::vector<std::string>& errors,
  37                          CAmount& old_fee,
  38                          CAmount& new_fee,
  39                          CMutableTransaction& mtx);
  40
  41 //! Sign the new transaction,
  42 //! @return false if the tx couldn't be found or if it was
  43 //! impossible to create the signature(s)
  44 bool SignTransaction(CWallet* wallet, CMutableTransaction& mtx);
  45
  46 //! Commit the bumpfee transaction.
  47 //! @return success in case of CWallet::CommitTransaction was successful,
  48 //! but sets errors if the tx could not be added to the mempool (will try later)
  49 //! or if the old transaction could not be marked as replaced.
  50 Result CommitTransaction(CWallet* wallet,
  51                          const uint256& txid,
  52                          CMutableTransaction&& mtx,
  53                          std::vector<std::string>& errors,
  54                          uint256& bumped_txid);
  55
  56 } // namespace feebumper
  57
  58 #endif // BITCOIN_WALLET_FEEBUMPER_H