Method UpdateTip

src/validation.cpp:2896–2931

}

void Chainstate::UpdateTip(const CBlockIndex* pindexNew)
{
    AssertLockHeld(::cs_main);
    const auto& coins_tip = this->CoinsTip();

    // The remainder of the function isn't relevant if we are not acting on
    // the active chainstate, so return if need be.
    if (this != &m_chainman.ActiveChainstate()) {
        // Only log every so often so that we don't bury log messages at the tip.
        constexpr int BACKGROUND_LOG_INTERVAL = 2000;
        if (pindexNew->nHeight % BACKGROUND_LOG_INTERVAL == 0) {
            UpdateTipLog(m_chainman, coins_tip, pindexNew, __func__, "[background validation] ", "", /*background_validation=*/true);
        }
        return;
    }

    // New best block
    if (m_mempool) {
        m_mempool->AddTransactionsUpdated(1);
    }

    std::vector<bilingual_str> warning_messages;
    if (!m_chainman.IsInitialBlockDownload()) {
        auto bits = m_chainman.m_versionbitscache.CheckUnknownActivations(pindexNew, m_chainman.GetParams());
        for (auto [bit, active] : bits) {
            const bilingual_str warning = strprintf(_("Unknown new rules activated (versionbit %i)"), bit);
            if (active) {
                m_chainman.GetNotifications().warningSet(kernel::Warning::UNKNOWN_NEW_RULES_ACTIVATED, warning);
            } else {
                warning_messages.push_back(warning);
            }
        }
    }
    UpdateTipLog(m_chainman, coins_tip, pindexNew, __func__, "",
                 util::Join(warning_messages, Untranslated(", ")).original, /*background_validation=*/false);
}

/** Disconnect m_chain's tip.
  * After calling, the mempool will be in an inconsistent state, with