src/policy/rbf.h

   1 // Copyright (c) 2016 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_POLICY_RBF_H
   6 #define BITCOIN_POLICY_RBF_H
   7
   8 #include "txmempool.h"
   9
  10 static const uint32_t MAX_BIP125_RBF_SEQUENCE = 0xfffffffd;
  11
  12 enum RBFTransactionState {
  13     RBF_TRANSACTIONSTATE_UNKNOWN,
  14     RBF_TRANSACTIONSTATE_REPLACEABLE_BIP125,
  15     RBF_TRANSACTIONSTATE_FINAL
  16 };
  17
  18 // Check whether the sequence numbers on this transaction are signaling
  19 // opt-in to replace-by-fee, according to BIP 125
  20 bool SignalsOptInRBF(const CTransaction &tx);
  21
  22 // Determine whether an in-mempool transaction is signaling opt-in to RBF
  23 // according to BIP 125
  24 // This involves checking sequence numbers of the transaction, as well
  25 // as the sequence numbers of all in-mempool ancestors.
  26 RBFTransactionState IsRBFOptIn(const CTransaction &tx, CTxMemPool &pool);
  27
  28 #endif // BITCOIN_POLICY_RBF_H