Method AcceptSingleTransaction

src/validation.cpp:1249–1276

}

MempoolAcceptResult MemPoolAccept::AcceptSingleTransaction(const CTransactionRef& ptx, ATMPArgs& args)
{
    AssertLockHeld(cs_main);
    LOCK(m_pool.cs); // mempool "read lock" (held through GetMainSignals().TransactionAddedToMempool())

    Workspace ws(ptx, args.m_chainparams.HashGenesisBlock());

    if (!PreChecks(args, ws)) return MempoolAcceptResult::Failure(ws.m_state);

    if (m_rbf && !ReplacementChecks(ws)) return MempoolAcceptResult::Failure(ws.m_state);

    // Perform the inexpensive checks first and avoid hashing and signature verification unless
    // those checks pass, to mitigate CPU exhaustion denial-of-service attacks.
    if (!PolicyScriptChecks(args, ws)) return MempoolAcceptResult::Failure(ws.m_state);

    if (!ConsensusScriptChecks(args, ws)) return MempoolAcceptResult::Failure(ws.m_state);

    // Tx was accepted, but not added
    if (args.m_test_accept) {
        return MempoolAcceptResult::Success(std::move(ws.m_replaced_transactions), ws.m_vsize, ws.m_base_fees);
    }

    if (!Finalize(args, ws)) return MempoolAcceptResult::Failure(ws.m_state);

    GetMainSignals().TransactionAddedToMempool(ptx, m_pool.GetAndIncrementSequence());

    return MempoolAcceptResult::Success(std::move(ws.m_replaced_transactions), ws.m_vsize, ws.m_base_fees);
}

PackageMempoolAcceptResult MemPoolAccept::AcceptMultipleTransactions(const std::vector<CTransactionRef>& txns, ATMPArgs& args)
{