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// Copyright (c) 2016-2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_POLICY_RBF_H
#define BITCOIN_POLICY_RBF_H
#include <txmempool.h>
/** The rbf state of unconfirmed transactions */
enum class RBFTransactionState {
/** Unconfirmed tx that does not signal rbf and is not in the mempool */
UNKNOWN,
/** Either this tx or a mempool ancestor signals rbf */
REPLACEABLE_BIP125,
/** Neither this tx nor a mempool ancestor signals rbf */
FINAL,
};
/**
* Determine whether an unconfirmed transaction is signaling opt-in to RBF
* according to BIP 125
* This involves checking sequence numbers of the transaction, as well
* as the sequence numbers of all in-mempool ancestors.
*
* @param tx The unconfirmed transaction
* @param pool The mempool, which may contain the tx
*
* @return The rbf state
*/
RBFTransactionState IsRBFOptIn(const CTransaction& tx, const CTxMemPool& pool) EXCLUSIVE_LOCKS_REQUIRED(pool.cs);
RBFTransactionState IsRBFOptInEmptyMempool(const CTransaction& tx);
#endif // BITCOIN_POLICY_RBF_H
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