diff options
Diffstat (limited to 'src/policy/rbf.h')
| -rw-r--r-- | src/policy/rbf.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/policy/rbf.h b/src/policy/rbf.h index 5a33ed64a3..252fbec8e3 100644 --- a/src/policy/rbf.h +++ b/src/policy/rbf.h @@ -9,7 +9,9 @@ #include <primitives/transaction.h> #include <threadsafety.h> #include <txmempool.h> +#include <util/feefrac.h> +#include <compare> #include <cstddef> #include <cstdint> #include <optional> @@ -33,6 +35,13 @@ enum class RBFTransactionState { FINAL, }; +enum class DiagramCheckError { + /** Unable to calculate due to topology or other reason */ + UNCALCULABLE, + /** New diagram wasn't strictly superior */ + FAILURE, +}; + /** * Determine whether an unconfirmed transaction is signaling opt-in to RBF * according to BIP 125 @@ -106,4 +115,21 @@ std::optional<std::string> PaysForRBF(CAmount original_fees, CFeeRate relay_fee, const uint256& txid); +/** + * The replacement transaction must improve the feerate diagram of the mempool. + * @param[in] pool The mempool. + * @param[in] direct_conflicts Set of in-mempool txids corresponding to the direct conflicts i.e. + * input double-spends with the proposed transaction + * @param[in] all_conflicts Set of mempool entries corresponding to all transactions to be evicted + * @param[in] replacement_fees Fees of proposed replacement package + * @param[in] replacement_vsize Size of proposed replacement package + * @returns error type and string if mempool diagram doesn't improve, otherwise std::nullopt. + */ +std::optional<std::pair<DiagramCheckError, std::string>> ImprovesFeerateDiagram(CTxMemPool& pool, + const CTxMemPool::setEntries& direct_conflicts, + const CTxMemPool::setEntries& all_conflicts, + CAmount replacement_fees, + int64_t replacement_vsize) + EXCLUSIVE_LOCKS_REQUIRED(pool.cs); + #endif // BITCOIN_POLICY_RBF_H |