C++ CAddrInfo::GetNewBucket方法代码示例

bool CAddrMan::Add_(const CAddress &addr, const CNetAddr& source, int64_t nTimePenalty)
{
    if (!addr.IsRoutable())
        return false;

    bool fNew = false;
    int nId;
    CAddrInfo *pinfo = Find(addr, &nId);

    if (pinfo)
    {
        // periodically update nTime
        bool fCurrentlyOnline = (GetAdjustedTime() - addr.nTime < 24 * 60 * 60);
        int64_t nUpdateInterval = (fCurrentlyOnline ? 60 * 60 : 24 * 60 * 60);
        if (addr.nTime && (!pinfo->nTime || pinfo->nTime < addr.nTime - nUpdateInterval - nTimePenalty))
            pinfo->nTime = max((int64_t)0, addr.nTime - nTimePenalty);

        // add services
        pinfo->nServices |= addr.nServices;

        // do not update if no new information is present
        if (!addr.nTime || (pinfo->nTime && addr.nTime <= pinfo->nTime))
            return false;

        // do not update if the entry was already in the "tried" table
        if (pinfo->fInTried)
            return false;

        // do not update if the max reference count is reached
        if (pinfo->nRefCount == ADDRMAN_NEW_BUCKETS_PER_ADDRESS)
            return false;

        // stochastic test: previous nRefCount == N: 2^N times harder to increase it
        int nFactor = 1;
        for (int n=0; n<pinfo->nRefCount; n++)
            nFactor *= 2;
        if (nFactor > 1 && (GetRandInt(nFactor) != 0))
            return false;
    } else {
        pinfo = Create(addr, source, &nId);
        pinfo->nTime = max((int64_t)0, (int64_t)pinfo->nTime - nTimePenalty);
//        printf("Added %s [nTime=%fhr]\n", pinfo->ToString().c_str(), (GetAdjustedTime() - pinfo->nTime) / 3600.0);
        nNew++;
        fNew = true;
    }

    int nUBucket = pinfo->GetNewBucket(nKey, source);
    std::set<int> &vNew = vvNew[nUBucket];
    if (!vNew.count(nId))
    {
        pinfo->nRefCount++;
        if (vNew.size() == ADDRMAN_NEW_BUCKET_SIZE)
            ShrinkNew(nUBucket);
        vvNew[nUBucket].insert(nId);
    }
    return fNew;
}

bool CAddrMan::Add_(const CAddress &addr, const CNetAddr& source, int64 nTimePenalty)
{
    if (!addr.IsRoutable())
        return false;

    bool fNew = false;
    int nId;
    CAddrInfo *pinfo = Find(addr, &nId);

    if (pinfo)
    {
        // periodically update nTime                                                периодически обновлять Ntime
        bool fCurrentlyOnline = (GetAdjustedTime() - addr.nTime < 24 * 60 * 60);
        int64 nUpdateInterval = (fCurrentlyOnline ? 60 * 60 : 24 * 60 * 60);
        if (addr.nTime && (!pinfo->nTime || pinfo->nTime < addr.nTime - nUpdateInterval - nTimePenalty))
            pinfo->nTime = max((int64)0, addr.nTime - nTimePenalty);

        // add services                                                             добаление сервисов
        pinfo->nServices |= addr.nServices;

        // do not update if no new information is present                           не обновлять, если никакой новой информации не присутствует
        if (!addr.nTime || (pinfo->nTime && addr.nTime <= pinfo->nTime))
            return false;

        // do not update if the entry was already in the "tried" table              не обновлять, если запись уже была в таблицы "проверенных"
        if (pinfo->fInTried)
            return false;

        // do not update if the max reference count is reached                      не обновлять, если достигнут максимум счетчика ссылок
        if (pinfo->nRefCount == ADDRMAN_NEW_BUCKETS_PER_ADDRESS)
            return false;

        // stochastic test: previous nRefCount == N: 2^N times harder to increase it(2^N раз сложнее его увеличить)
        int nFactor = 1;
        for (int n=0; n<pinfo->nRefCount; n++)
            nFactor *= 2;
        if (nFactor > 1 && (GetRandInt(nFactor) != 0))
            return false;
    } else {
        pinfo = Create(addr, source, &nId);
        pinfo->nTime = max((int64)0, (int64)pinfo->nTime - nTimePenalty);
//        printf("Added %s [nTime=%fhr]\n", pinfo->ToString().c_str(), (GetAdjustedTime() - pinfo->nTime) / 3600.0);
        nNew++;
        fNew = true;
    }

    int nUBucket = pinfo->GetNewBucket(nKey, source);
    std::set<int> &vNew = vvNew[nUBucket];
    if (!vNew.count(nId))
    {
        pinfo->nRefCount++;
        if (vNew.size() == ADDRMAN_NEW_BUCKET_SIZE)
            ShrinkNew(nUBucket);
        vvNew[nUBucket].insert(nId);
    }
    return fNew;
}

bool CAddrMan::Add_(const CAddress& addr, const CNetAddr& source, int64_t nTimePenalty)
{
    if (!addr.IsRoutable())
        return false;

    bool fNew = false;
    int nId;
    CAddrInfo* pinfo = Find(addr, &nId);

    if (pinfo) {
        // periodically update nTime
        bool fCurrentlyOnline = (GetAdjustedTime() - addr.nTime < 24 * 60 * 60);
        int64_t nUpdateInterval = (fCurrentlyOnline ? 60 * 60 : 24 * 60 * 60);
        if (addr.nTime && (!pinfo->nTime || pinfo->nTime < addr.nTime - nUpdateInterval - nTimePenalty))
            pinfo->nTime = max((int64_t)0, addr.nTime - nTimePenalty);

        // add services
        pinfo->nServices |= addr.nServices;

        // do not update if no new information is present
        if (!addr.nTime || (pinfo->nTime && addr.nTime <= pinfo->nTime))
            return false;

        // do not update if the entry was already in the "tried" table
        if (pinfo->fInTried)
            return false;

        // do not update if the max reference count is reached
        if (pinfo->nRefCount == ADDRMAN_NEW_BUCKETS_PER_ADDRESS)
            return false;

        // stochastic test: previous nRefCount == N: 2^N times harder to increase it
        int nFactor = 1;
        for (int n = 0; n < pinfo->nRefCount; n++)
            nFactor *= 2;
        if (nFactor > 1 && (GetRandInt(nFactor) != 0))
            return false;
    } else {
        pinfo = Create(addr, source, &nId);
        pinfo->nTime = max((int64_t)0, (int64_t)pinfo->nTime - nTimePenalty);
        nNew++;
        fNew = true;
    }

    int nUBucket = pinfo->GetNewBucket(nKey, source);
    int nUBucketPos = pinfo->GetBucketPosition(nKey, true, nUBucket);
    if (vvNew[nUBucket][nUBucketPos] != nId) {
        bool fInsert = vvNew[nUBucket][nUBucketPos] == -1;
        if (!fInsert) {
            CAddrInfo& infoExisting = mapInfo[vvNew[nUBucket][nUBucketPos]];
            if (infoExisting.IsTerrible() || (infoExisting.nRefCount > 1 && pinfo->nRefCount == 0)) {
                // Overwrite the existing new table entry.
                fInsert = true;
            }
        }
        if (fInsert) {
            ClearNew(nUBucket, nUBucketPos);
            pinfo->nRefCount++;
            vvNew[nUBucket][nUBucketPos] = nId;
        } else {
            if (pinfo->nRefCount == 0) {
                Delete(nId);
            }
        }
    }
    return fNew;
}

bool CAddrMan::Add_(const CAddress& addr, const CNetAddr& source, int64_t nTimePenalty)
{
    if (!addr.IsRoutable())
        return false;

    bool fNew = false;
    int nId;
    CAddrInfo* pinfo = Find(addr, &nId);

    if (pinfo) {

        bool fCurrentlyOnline = (GetAdjustedTime() - addr.nTime < 24 * 60 * 60);
        int64_t nUpdateInterval = (fCurrentlyOnline ? 60 * 60 : 24 * 60 * 60);
        if (addr.nTime && (!pinfo->nTime || pinfo->nTime < addr.nTime - nUpdateInterval - nTimePenalty))
            pinfo->nTime = std::max((int64_t)0, addr.nTime - nTimePenalty);

        pinfo->nServices = ServiceFlags(pinfo->nServices | addr.nServices);

        if (!addr.nTime || (pinfo->nTime && addr.nTime <= pinfo->nTime))
            return false;

        if (pinfo->fInTried)
            return false;

        if (pinfo->nRefCount == ADDRMAN_NEW_BUCKETS_PER_ADDRESS)
            return false;

        int nFactor = 1;
        for (int n = 0; n < pinfo->nRefCount; n++)
            nFactor *= 2;
        if (nFactor > 1 && (RandomInt(nFactor) != 0))
            return false;
    } else {
        pinfo = Create(addr, source, &nId);
        pinfo->nTime = std::max((int64_t)0, (int64_t)pinfo->nTime - nTimePenalty);
        nNew++;
        fNew = true;
    }

    int nUBucket = pinfo->GetNewBucket(nKey, source);
    int nUBucketPos = pinfo->GetBucketPosition(nKey, true, nUBucket);
    if (vvNew[nUBucket][nUBucketPos] != nId) {
        bool fInsert = vvNew[nUBucket][nUBucketPos] == -1;
        if (!fInsert) {
            CAddrInfo& infoExisting = mapInfo[vvNew[nUBucket][nUBucketPos]];
            if (infoExisting.IsTerrible() || (infoExisting.nRefCount > 1 && pinfo->nRefCount == 0)) {

                fInsert = true;
            }
        }
        if (fInsert) {
            ClearNew(nUBucket, nUBucketPos);
            pinfo->nRefCount++;
            vvNew[nUBucket][nUBucketPos] = nId;
        } else {
            if (pinfo->nRefCount == 0) {
                Delete(nId);
            }
        }
    }
    return fNew;
}

bool CAddrMan::Add_(const CAddress& addrIn, const CNetAddr& source, int64_t nTimePenalty)
{
#ifdef I2PADDRMAN_EXTENSIONS
    //! We now need to check for an possibly modify the CAddress object for the garliccat field, so we make a local copy
    CAddress addr = addrIn;
    /**
     * Before we can add an address, even before we can test if its Routable, or use the Find command to match correctly,
     * we need to make sure that any I2P addresses have the GarlicCat field setup correctly in the IP area of the
     * CNetAddr portion of a given CAddress->CService->CNetAddr object, this should have already been done, but
     * double checking it here also insures we do not get a polluted b32 hash map
     */
    if( addr.CheckAndSetGarlicCat() )
        LogPrint( "addrman", "While adding an i2p destination, did not expect to need the garliccat fixed for %s\n", addr.ToString() );
#endif
    if( !addr.IsRoutable() ) {
        LogPrint( "addrman", "While adding an address, did not expect to find it unroutable: %s\n", addr.ToString() );
        return false;
    }

    bool fNew = false;
    int nId;

    /**
     * Find Matches by CNetAddr objects, and returns the CAddrInfo object it finds, which is fine and what we want normally
     * however this means the ports can be different (CService), and other details in the CAddress portion, such as nServices
     * should not simply be 'or'd with what was found, sometimes we have to remove services in the version exchange that
     * peers report incorrectly, and having the port wrong means when Good_ is called that the objects do not match exactly.
     */
    CAddrInfo* pinfo = Find(addr, &nId);

    if (pinfo)
    {
        // periodically update nTime
        bool fCurrentlyOnline = (GetAdjustedTime() - addr.nTime < 24 * 60 * 60);
        int64_t nUpdateInterval = (fCurrentlyOnline ? 60 * 60 : 24 * 60 * 60);
        if (addr.nTime && (!pinfo->nTime || pinfo->nTime < addr.nTime - nUpdateInterval - nTimePenalty))
            pinfo->nTime = std::max((int64_t)0, addr.nTime - nTimePenalty);

        /**
         * Only do the following, IF the source of this information is the node itself (source),
         * otherwise we're just constantly changing the details, while getting addresses from peers.
         *
         * The call (to addrman.Add()) which puts us here, happens at the end of a version message exchange,
         * for inbound connections only.
         * For outbound connections, we only have a call to good, if the connection is made.
         * Other places addrman.Add() is called is for address seeding and user lookup, see net.cpp for those details
         */
        if( (CNetAddr)addr == source ) {
            /**
             * add services, don't just 'or' them in here, hard set them to the correct value
             * original code: pinfo->nServices |= addr.nServices;
             * ToDo: Why this and the port value has not been fixed as standard procedure could be investigated in more detail
             * for now Anoncoin has so many unique problems with these 2 values, this should help correct allot of the
             * current network issues in regard to the values getting corrected over time.
             */
            if( pinfo->nServices != addr.nServices ) {
                LogPrint( "addrman", "Updating peer record %s, the services listed needed to be changed. From 0x%016x To 0x%016x\n", pinfo->ToString(), pinfo->nServices, addr.nServices );
                pinfo->nServices = addr.nServices;
            }

            if( pinfo->GetPort() != addr.GetPort() ) {
                LogPrint( "addrman", "Updating peer record %s, port %d was wrong, changed it to %d\n", pinfo->ToString(), pinfo->GetPort(), addr.GetPort() );
                pinfo->SetPort( addr.GetPort() );
            }
        }

        // do not update if no new information is present
        if (!addr.nTime || (pinfo->nTime && addr.nTime <= pinfo->nTime))
            return false;

        // do not update if the entry was already in the "tried" table
        if (pinfo->fInTried)
            return false;

        // do not update if the max reference count is reached
        if (pinfo->nRefCount == ADDRMAN_NEW_BUCKETS_PER_ADDRESS)
            return false;

        // stochastic test: previous nRefCount == N: 2^N times harder to increase it
        int nFactor = 1;
        for (int n = 0; n < pinfo->nRefCount; n++)
            nFactor *= 2;
        if (nFactor > 1 && (GetRandInt(nFactor) != 0))
            return false;
    } else {
        pinfo = Create(addr, source, &nId);
        pinfo->nTime = std::max((int64_t)0, (int64_t)pinfo->nTime - nTimePenalty);
        nNew++;
        fNew = true;
    }

    int nUBucket = pinfo->GetNewBucket(nKey, source);
    int nUBucketPos = pinfo->GetBucketPosition(nKey, true, nUBucket);
    if (vvNew[nUBucket][nUBucketPos] != nId) {
        bool fInsert = vvNew[nUBucket][nUBucketPos] == -1;
        if (!fInsert) {
            CAddrInfo& infoExisting = mapInfo[vvNew[nUBucket][nUBucketPos]];
            if (infoExisting.IsTerrible() || (infoExisting.nRefCount > 1 && pinfo->nRefCount == 0)) {
            // Overwrite the existing new table entry.
            fInsert = true;
//.........这里部分代码省略.........