Method Unserialize

src/addrman.cpp:229–398

template <typename Stream>
void AddrManImpl::Unserialize(Stream& s_)
{
    LOCK(cs);

    assert(vRandom.empty());

    Format format;
    s_ >> Using<CustomUintFormatter<1>>(format);

    int stream_version = s_.GetVersion();
    if (format >= Format::V3_BIP155) {
        // Add ADDRV2_FORMAT to the version so that the CNetAddr and CAddress
        // unserialize methods know that an address in addrv2 format is coming.
        stream_version |= ADDRV2_FORMAT;
    }

    OverrideStream<Stream> s(&s_, s_.GetType(), stream_version);

    uint8_t compat;
    s >> compat;
    const uint8_t lowest_compatible = compat - INCOMPATIBILITY_BASE;
    if (lowest_compatible > FILE_FORMAT) {
        throw InvalidAddrManVersionError(strprintf(
            "Unsupported format of addrman database: %u. It is compatible with formats >=%u, "
            "but the maximum supported by this version of %s is %u.",
            uint8_t{format}, uint8_t{lowest_compatible}, PACKAGE_NAME, uint8_t{FILE_FORMAT}));
    }

    s >> nKey;
    s >> nNew;
    s >> nTried;
    int nUBuckets = 0;
    s >> nUBuckets;
    if (format >= Format::V1_DETERMINISTIC) {
        nUBuckets ^= (1 << 30);
    }

    if (nNew > ADDRMAN_NEW_BUCKET_COUNT * ADDRMAN_BUCKET_SIZE || nNew < 0) {
        throw std::ios_base::failure(
                strprintf("Corrupt AddrMan serialization: nNew=%d, should be in [0, %d]",
                    nNew,
                    ADDRMAN_NEW_BUCKET_COUNT * ADDRMAN_BUCKET_SIZE));
    }

    if (nTried > ADDRMAN_TRIED_BUCKET_COUNT * ADDRMAN_BUCKET_SIZE || nTried < 0) {
        throw std::ios_base::failure(
                strprintf("Corrupt AddrMan serialization: nTried=%d, should be in [0, %d]",
                    nTried,
                    ADDRMAN_TRIED_BUCKET_COUNT * ADDRMAN_BUCKET_SIZE));
    }

    // Deserialize entries from the new table.
    for (int n = 0; n < nNew; n++) {
        AddrInfo& info = mapInfo[n];
        s >> info;
        mapAddr[info] = n;
        info.nRandomPos = vRandom.size();
        vRandom.push_back(n);