C++ pointer::peekAccountStateMap方法代码示例

void
close_and_advance(Ledger::pointer& ledger, Ledger::pointer& LCL)
{
    std::shared_ptr<SHAMap> set = ledger->peekTransactionMap();
    CanonicalTXSet retriableTransactions(set->getHash());
    Ledger::pointer newLCL = std::make_shared<Ledger>(false, *LCL);
    // Set up to write SHAMap changes to our database,
    //   perform updates, extract changes
    applyTransactions(set, newLCL, newLCL, retriableTransactions, false);
    newLCL->updateSkipList();
    newLCL->setClosed();
    newLCL->peekAccountStateMap()->flushDirty(
        hotACCOUNT_NODE, newLCL->getLedgerSeq());
    newLCL->peekTransactionMap()->flushDirty(
        hotTRANSACTION_NODE, newLCL->getLedgerSeq());
    using namespace std::chrono;
    auto const epoch_offset = days(10957);  // 2000-01-01
    std::uint32_t closeTime = time_point_cast<seconds>  // now
        (system_clock::now() - epoch_offset).
        time_since_epoch().count();
    int closeResolution = seconds(LEDGER_TIME_ACCURACY).count();
    bool closeTimeCorrect = true;
    newLCL->setAccepted(closeTime, closeResolution, closeTimeCorrect);

    LCL = newLCL;
    ledger = std::make_shared<Ledger>(false, *LCL);
}

void LedgerHistory::addLedger (Ledger::pointer ledger, bool validated)
{
    assert (ledger && ledger->isImmutable ());
    assert (ledger->peekAccountStateMap ()->getHash ().isNonZero ());

    TaggedCache::ScopedLockType sl (mLedgersByHash.peekMutex (), __FILE__, __LINE__);

    mLedgersByHash.canonicalize (ledger->getHash(), ledger, true);
    if (validated)
        mLedgersByIndex[ledger->getLedgerSeq()] = ledger->getHash();
}

bool LedgerHistory::addLedger (Ledger::pointer ledger, bool validated)
{
    assert (ledger && ledger->isImmutable ());
    assert (ledger->peekAccountStateMap ()->getHash ().isNonZero ());

    LedgersByHash::ScopedLockType sl (m_ledgers_by_hash.peekMutex ());

    const bool alreadyHad = m_ledgers_by_hash.canonicalize (ledger->getHash(), ledger, true);
    if (validated)
        mLedgersByIndex[ledger->getLedgerSeq()] = ledger->getHash();

    return alreadyHad;
}

//.........这里部分代码省略.........
                parentLedger = lm.getClosedLedger ();
            }

            auto const parentSeq = parentLedger->getLedgerSeq ();
            auto seq = j["seq"].asUInt ();
            while (parentSeq + 1 > seq)
            {
                // Fast-scan JSON records until we hit the right one.
                WriteLog (lsINFO, LedgerDump) << "scanning past ledger: "
                                              << seq;
                j = loadJsonRecord (in);
                seq = j["seq"].asUInt ();
                if (parentSeq + 1 <= seq)
                {
                    require (parentSeq + 1 == seq,
                             "Missing ledgers between loaded and replay-start");
                    std::tie (deserializedLedger, txSet, txOrder) =
                        loadLedgerAndTransactionsFromJSON (*app, j);
                }
            }
            gLedgerSeq = parentSeq;
            require(parentLedger->getLedgerSeq () + 1 ==
                    deserializedLedger->getLedgerSeq (),
                    "Mismatched ledger-sequence prefix.");
        }

        Ledger::pointer currentLedger =
            boost::make_shared<Ledger> (true, *parentLedger);
        currentLedger->setCloseTime (deserializedLedger->getCloseTimeNC ());
        currentLedger->setCloseFlags (deserializedLedger->getCloseFlags ());
        currentLedger->setParentHash (deserializedLedger->getParentHash ());

        WriteLog (lsINFO, LedgerDump) << "loading ledger: "
                                      << currentLedger->getLedgerSeq();

        if (ShouldLog (lsTRACE, LedgerDump))
        {
            WriteLog (lsTRACE, LedgerDump) << "expecting next ledger:";
            WriteLog (lsTRACE, LedgerDump) << deserializedLedger->getJson (0);
            WriteLog (lsTRACE, LedgerDump) << "synthetic next ledger:";
            WriteLog (lsTRACE, LedgerDump) << currentLedger->getJson (0);
        }

        gLedgerSeq++;

        // Apply transactions, transitioning from one ledger state to next.
        WriteLog (lsDEBUG, LedgerDump)
            << "Applying set of " << txOrder.size() << " transactions";
        CanonicalTXSet retriableTransactions (txSet->getHash ());
        std::set<uint256> failedTransactions;
        LedgerConsensus::applyTransactions (txSet, currentLedger, currentLedger,
                                            retriableTransactions, failedTransactions,
                                            false, txOrder);

        require (retriableTransactions.empty (), "failed retriable tx set is not empty");
        require (failedTransactions.empty (), "failed tx set is not empty");

        currentLedger->updateSkipList ();
        currentLedger->setClosed ();
        currentLedger->setCloseTime (deserializedLedger->getCloseTimeNC ());

        int asf = currentLedger->peekAccountStateMap ()->flushDirty (
            hotACCOUNT_NODE, currentLedger->getLedgerSeq());
        int tmf = currentLedger->peekTransactionMap ()->flushDirty (
            hotTRANSACTION_NODE, currentLedger->getLedgerSeq());
        nTxs += tmf;

        WriteLog (lsDEBUG, LedgerDump) << "Flushed " << asf << " account "
                                  << "and " << tmf << "transaction nodes";

        // Finalize with the LedgerMaster.
        currentLedger->setAccepted ();
        bool alreadyHadLedger = lm.storeLedger (currentLedger);
        assert (! alreadyHadLedger);
        lm.pushLedger (currentLedger);

        WriteLog (lsTRACE, LedgerDump) << "parent ledger:";
        traceLedgerContents (*parentLedger);
        WriteLog (lsTRACE, LedgerDump) << "current ledger:";
        traceLedgerContents (*currentLedger);

        try
        {
            checkLedgersEqual (*deserializedLedger, *currentLedger);
        }
        catch (...)
        {
            WriteLog (lsINFO, LedgerDump) << "bad ledger:";
            std::cerr << currentLedger->getJson (LEDGER_JSON_FULL);
            throw;
        }
        parentLedger = currentLedger;
    }

    WriteLog (lsINFO, LedgerDump) << "Loaded "
                             << gLedgerSeq << "ledgers, "
                             << nTxs << " transactions from "
                             << filename;
    exit (0);
}

// Get state nodes from a ledger
//   Inputs:
//     limit:        integer, maximum number of entries
//     marker:       opaque, resume point
//     binary:       boolean, format
//   Outputs:
//     ledger_hash:  chosen ledger's hash
//     ledger_index: chosen ledger's index
//     state:        array of state nodes
//     marker:       resume point, if any
Json::Value doLedgerData (RPC::Context& context)
{
    context.lock_.unlock ();

    int const BINARY_PAGE_LENGTH = 256;
    int const JSON_PAGE_LENGTH = 2048;

    Ledger::pointer lpLedger;

    Json::Value jvResult = RPC::lookupLedger (context.params_, lpLedger, context.netOps_);
    if (!lpLedger)
        return jvResult;

    uint256 resumePoint;
    if (context.params_.isMember ("marker"))
    {
        Json::Value const& jMarker = context.params_["marker"];
        if (!jMarker.isString ())
            return RPC::expected_field_error ("marker", "valid");
        if (!resumePoint.SetHex (jMarker.asString ()))
            return RPC::expected_field_error ("marker", "valid");
    }

    bool isBinary = false;
    if (context.params_.isMember ("binary"))
    {
        Json::Value const& jBinary = context.params_["binary"];
        if (!jBinary.isBool ())
            return RPC::expected_field_error ("binary", "bool");
        isBinary = jBinary.asBool ();
    }

    int limit = -1;
    int maxLimit = isBinary ? BINARY_PAGE_LENGTH : JSON_PAGE_LENGTH;

    if (context.params_.isMember ("limit"))
    {
        Json::Value const& jLimit = context.params_["limit"];
        if (!jLimit.isIntegral ())
            return RPC::expected_field_error ("limit", "integer");

        limit = jLimit.asInt ();
    }

    if ((limit < 0) || ((limit > maxLimit) && (context.role_ != Config::ADMIN)))
        limit = maxLimit;

    Json::Value jvReply = Json::objectValue;

    jvReply["ledger_hash"] = to_string (lpLedger->getHash());
    jvReply["ledger_index"] = beast::lexicalCastThrow <std::string> (lpLedger->getLedgerSeq ());

    Json::Value& nodes = (jvReply["state"] = Json::arrayValue);
    SHAMap& map = *(lpLedger->peekAccountStateMap ());

    for (;;)
    {
       SHAMapItem::pointer item = map.peekNextItem (resumePoint);
       if (!item)
           break;
       resumePoint = item->getTag();

       if (limit-- <= 0)
       {
           --resumePoint;
           jvReply["marker"] = to_string (resumePoint);
           break;
       }

       if (isBinary)
       {
           Json::Value& entry = nodes.append (Json::objectValue);
           entry["data"] = strHex (item->peekData().begin(), item->peekData().size());
           entry["index"] = to_string (item->getTag ());
       }
       else
       {
           SLE sle (item->peekSerializer(), item->getTag ());
           Json::Value& entry = nodes.append (sle.getJson (0));
           entry["index"] = to_string (item->getTag ());
       }
    }

    return jvReply;
}