Method findAncestorByHash

src/node/interfaces.cpp:521–529

        return FillBlock(nullptr, ancestor_out, lock, active);
    }
    bool findAncestorByHash(const uint256& block_hash, const uint256& ancestor_hash, const FoundBlock& ancestor_out) override
    {
        WAIT_LOCK(cs_main, lock);
        const CChain& active = Assert(m_node.chainman)->ActiveChain();
        const CBlockIndex* block = m_node.chainman->m_blockman.LookupBlockIndex(block_hash);
        const CBlockIndex* ancestor = m_node.chainman->m_blockman.LookupBlockIndex(ancestor_hash);
        if (block && ancestor && block->GetAncestor(ancestor->nHeight) != ancestor) ancestor = nullptr;
        return FillBlock(ancestor, ancestor_out, lock, active);
    }
    bool findCommonAncestor(const uint256& block_hash1, const uint256& block_hash2, const FoundBlock& ancestor_out, const FoundBlock& block1_out, const FoundBlock& block2_out) override
    {
        WAIT_LOCK(cs_main, lock);