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Cleanup and optimize order book DB generation.

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This commit is contained in:
JoelKatz
2013-03-06 03:28:31 -08:00
parent a8daf34a08
commit 5fe7240b56
4 changed files with 18 additions and 25 deletions
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7
src/cpp/ripple/OrderBook.cpp
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@@ -1,13 +1,6 @@
#include "OrderBook.h"
#include "Ledger.h"
OrderBook::pointer OrderBook::newOrderBook(SerializedLedgerEntry::ref ledgerEntry)
{
if(ledgerEntry->getType() != ltOFFER) return( OrderBook::pointer());
return( OrderBook::pointer(new OrderBook(ledgerEntry)));
}
OrderBook::OrderBook(SerializedLedgerEntry::ref ledgerEntry)
{
const STAmount saTakerGets = ledgerEntry->getFieldAmount(sfTakerGets);

11
src/cpp/ripple/OrderBook.h
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@@ -27,11 +27,12 @@ public:
typedef const boost::shared_ptr<OrderBook>& ref;
OrderBook(const uint256& index, const uint160& ci, const uint160& co, const uint160& ii, const uint160& io) :
mBookBase(index), mCurrencyIn(ci), mCurrencyOut(co), mIssuerIn(ii), mIssuerOut(io) { ; }
// returns NULL if ledgerEntry doesn't point to an order
// if ledgerEntry is an Order it creates the OrderBook this order would live in
static OrderBook::pointer newOrderBook(SerializedLedgerEntry::ref ledgerEntry);
mBookBase(index),
mCurrencyIn(ci),
mCurrencyOut(co),
mIssuerIn(ii),
mIssuerOut(io)
{ ; }
uint256& getBookBase(){ return(mBookBase); }
uint160& getCurrencyIn(){ return(mCurrencyIn); }

23
src/cpp/ripple/OrderBookDB.cpp
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@@ -20,6 +20,8 @@ void OrderBookDB::invalidate()
// TODO: this would be way faster if we could just look under the order dirs
void OrderBookDB::setup(Ledger::ref ledger)
{
boost::unordered_set<uint256> mSeen;
boost::recursive_mutex::scoped_lock sl(mLock);
if (ledger->getLedgerSeq() == mSeq)
@@ -30,7 +32,6 @@ void OrderBookDB::setup(Ledger::ref ledger)
mXRPOrders.clear();
mIssuerMap.clear();
mKnownMap.clear();
// walk through the entire ledger looking for orderbook entries
uint256 currentIndex = ledger->getFirstLedgerIndex();
@@ -40,19 +41,19 @@ void OrderBookDB::setup(Ledger::ref ledger)
while (currentIndex.isNonZero())
{
SLE::pointer entry = ledger->getSLEi(currentIndex);
OrderBook::pointer book = OrderBook::newOrderBook(entry);
if (book)
if ((entry->getType() == ltDIR_NODE) && (entry->isFieldPresent(sfExchangeRate)) &&
(entry->getFieldH256(sfRootIndex) == currentIndex))
{
cLog(lsTRACE) << "OrderBookDB: found book";
const uint160& ci = entry->getFieldH160(sfTakerPaysCurrency);
const uint160& co = entry->getFieldH160(sfTakerGetsCurrency);
const uint160& ii = entry->getFieldH160(sfTakerPaysIssuer);
const uint160& io = entry->getFieldH160(sfTakerGetsIssuer);
if (mKnownMap.find(book->getBookBase()) == mKnownMap.end())
uint256 index = Ledger::getBookBase(ci, ii, co, io);
if (mSeen.insert(index).second)
{
mKnownMap[book->getBookBase()] = true;
cLog(lsTRACE) << "OrderBookDB: unknown book in: "
<< STAmount::createHumanCurrency(book->getCurrencyIn())
<< " -> "
<< STAmount::createHumanCurrency(book->getCurrencyOut());
OrderBook::pointer book = boost::make_shared<OrderBook>(boost::cref(index),
boost::cref(ci), boost::cref(co), boost::cref(ii), boost::cref(io));
if (!book->getCurrencyIn()) // XRP
mXRPOrders.push_back(book);

2
src/cpp/ripple/OrderBookDB.h
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@@ -38,8 +38,6 @@ class OrderBookDB
// issuerIn, issuerOut, currencyIn, currencyOut
std::map<uint160, std::map<uint160, std::map<uint160, std::map<uint160, BookListeners::pointer> > > > mListeners;
std::map<uint256, bool > mKnownMap;
uint32 mSeq;
boost::recursive_mutex mLock;