Method Unserialize

src/wallet/migrate.cpp:481–520

    template <typename Stream>
    void Unserialize(Stream& s)
    {
        // Current position within the page
        int64_t pos = PageHeader::SIZE;

        // Get the items
        for (uint32_t i = 0; i < m_header.entries; ++i) {
            // Get the index
            uint16_t index;
            s >> index;
            if (m_header.other_endian) {
                index = internal_bswap_16(index);
            }
            indexes.push_back(index);
            pos += sizeof(uint16_t);

            // Go to the offset from the index
            int64_t to_jump = index - pos;
            if (to_jump < 0) {
                throw std::runtime_error("Internal record position not in page");
            }
            s.ignore(to_jump);

            // Read the record
            RecordHeader rec_hdr(m_header.other_endian);
            s >> rec_hdr;
            to_jump += RecordHeader::SIZE;

            if (rec_hdr.type != RecordType::KEYDATA) {
                throw std::runtime_error("Unknown record type in internal page");
            }
            InternalRecord record(rec_hdr);
            s >> record;
            records.emplace_back(record);
            to_jump += InternalRecord::FIXED_SIZE + rec_hdr.len;

            // Go back to the indexes
            s.seek(-to_jump, SEEK_CUR);
        }
    }
};

static void SeekToPage(AutoFile& s, uint32_t page_num, uint32_t page_size)