Method NextHeadersRequestLocator

src/headerssync.cpp:296–317

}

CBlockLocator HeadersSyncState::NextHeadersRequestLocator() const
{
    Assume(m_download_state != State::FINAL);
    if (m_download_state == State::FINAL) return {};

    auto chain_start_locator = LocatorEntries(&m_chain_start);
    std::vector<uint256> locator;

    if (m_download_state == State::PRESYNC) {
        // During pre-synchronization, we continue from the last header received.
        locator.push_back(m_last_header_received.GetHash());
    }

    if (m_download_state == State::REDOWNLOAD) {
        // During redownload, we will download from the last received header that we stored.
        locator.push_back(m_redownload_buffer_last_hash);
    }

    locator.insert(locator.end(), chain_start_locator.begin(), chain_start_locator.end());

    return CBlockLocator{std::move(locator)};
}