Method GetStateStatisticsFor

src/versionbits.cpp:119–155

}

BIP9Stats AbstractThresholdConditionChecker::GetStateStatisticsFor(const CBlockIndex* pindex, std::vector<bool>* signalling_blocks) const
{
    BIP9Stats stats = {};

    stats.period = Period();
    stats.threshold = Threshold();

    if (pindex == nullptr) return stats;

    // Find how many blocks are in the current period
    int blocks_in_period = 1 + (pindex->nHeight % stats.period);

    // Reset signalling_blocks
    if (signalling_blocks) {
        signalling_blocks->assign(blocks_in_period, false);
    }

    // Count from current block to beginning of period
    int elapsed = 0;
    int count = 0;
    const CBlockIndex* currentIndex = pindex;
    do {
        ++elapsed;
        --blocks_in_period;
        if (Condition(currentIndex)) {
            ++count;
            if (signalling_blocks) signalling_blocks->at(blocks_in_period) = true;
        }
        currentIndex = currentIndex->pprev;
    } while(blocks_in_period > 0);

    stats.elapsed = elapsed;
    stats.count = count;
    stats.possible = (stats.period - stats.threshold ) >= (stats.elapsed - count);

    return stats;
}

int AbstractThresholdConditionChecker::GetStateSinceHeightFor(const CBlockIndex* pindexPrev, ThresholdConditionCache& cache) const
{