Bitcoin Core  22.99.0
P2P Digital Currency
Functions | Variables
rbf.h File Reference
#include <cstdint>
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Functions

bool SignalsOptInRBF (const CTransaction &tx)
 Check whether the sequence numbers on this transaction are signaling opt-in to replace-by-fee, according to BIP 125. More...
 

Variables

static constexpr uint32_t MAX_BIP125_RBF_SEQUENCE {0xfffffffd}
 

Function Documentation

◆ SignalsOptInRBF()

bool SignalsOptInRBF ( const CTransaction tx)

Check whether the sequence numbers on this transaction are signaling opt-in to replace-by-fee, according to BIP 125.

Allow opt-out of transaction replacement by setting nSequence > MAX_BIP125_RBF_SEQUENCE (SEQUENCE_FINAL-2) on all inputs.

SEQUENCE_FINAL-1 is picked to still allow use of nLockTime by non-replaceable transactions. All inputs rather than just one is for the sake of multi-party protocols, where we don't want a single party to be able to disable replacement by opting out in their own input.

Definition at line 9 of file rbf.cpp.

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Variable Documentation

◆ MAX_BIP125_RBF_SEQUENCE

constexpr uint32_t MAX_BIP125_RBF_SEQUENCE {0xfffffffd}
staticconstexpr

Definition at line 12 of file rbf.h.