Class CHDChain

src/wallet/walletdb.h:90–126

simple HD chain data model */

/* simple HD chain data model */
class CHDChain
{
public:
    uint32_t nExternalChainCounter;
    uint32_t nInternalChainCounter;
    CKeyID seed_id; //!< seed hash160
    int64_t m_next_external_index{0}; // Next index in the keypool to be used. Memory only.
    int64_t m_next_internal_index{0}; // Next index in the keypool to be used. Memory only.

    static const int VERSION_HD_BASE        = 1;
    static const int VERSION_HD_CHAIN_SPLIT = 2;
    static const int CURRENT_VERSION        = VERSION_HD_CHAIN_SPLIT;
    int nVersion;

    CHDChain() { SetNull(); }

    SERIALIZE_METHODS(CHDChain, obj)
    {
        READWRITE(obj.nVersion, obj.nExternalChainCounter, obj.seed_id);
        if (obj.nVersion >= VERSION_HD_CHAIN_SPLIT) {
            READWRITE(obj.nInternalChainCounter);
        }
    }

    void SetNull()
    {
        nVersion = CHDChain::CURRENT_VERSION;
        nExternalChainCounter = 0;
        nInternalChainCounter = 0;
        seed_id.SetNull();
    }

    bool operator==(const CHDChain& chain) const
    {
        return seed_id == chain.seed_id;
    }
};

class CKeyMetadata
{