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049f92e882
Also adds the ability to unsubscribe from both sides of an orderbook simultaneously. Adds better error handling.
75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
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#ifndef ORDERBOOK_DB_H
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#define ORDERBOOK_DB_H
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#include <boost/shared_ptr.hpp>
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#include <boost/unordered_map.hpp>
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#include "Ledger.h"
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#include "AcceptedLedger.h"
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#include "OrderBook.h"
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//
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// XXX Eventually make this cached and just update it as transactions come in.
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// But, for now it is probably faster to just generate it each time.
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//
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class BookListeners
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{
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boost::unordered_map<uint64, InfoSub::wptr> mListeners;
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boost::recursive_mutex mLock;
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public:
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typedef boost::shared_ptr<BookListeners> pointer;
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void addSubscriber(InfoSub::ref sub);
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void removeSubscriber(uint64 sub);
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void publish(Json::Value& jvObj);
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};
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class OrderBookDB
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{
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std::vector<OrderBook::pointer> mEmptyVector;
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std::vector<OrderBook::pointer> mXRPOrders;
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boost::unordered_map<uint160, std::vector<OrderBook::pointer> > mIssuerMap;
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//std::vector<OrderBook::pointer> mAllOrderBooks;
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// issuerPays, issuerGets, currencyPays, currencyGets
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std::map<uint160, std::map<uint160, std::map<uint160, std::map<uint160, BookListeners::pointer> > > > mListeners;
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uint32 mSeq;
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boost::recursive_mutex mLock;
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public:
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OrderBookDB();
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void setup(Ledger::ref ledger);
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void invalidate();
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// return list of all orderbooks that want XRP
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std::vector<OrderBook::pointer>& getXRPInBooks(){ return mXRPOrders; }
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// return list of all orderbooks that want IssuerID
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std::vector<OrderBook::pointer>& getBooks(const uint160& issuerID);
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// return list of all orderbooks that want this issuerID and currencyID
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void getBooks(const uint160& issuerID, const uint160& currencyID, std::vector<OrderBook::pointer>& bookRet);
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// returns the best rate we can find
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float getPrice(uint160& currencyPays,uint160& currencyGets);
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BookListeners::pointer getBookListeners(const uint160& currencyPays, const uint160& currencyGets,
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const uint160& issuerPays, const uint160& issuerGets);
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BookListeners::pointer makeBookListeners(const uint160& currencyPays, const uint160& currencyGets,
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const uint160& issuerPays, const uint160& issuerGets);
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// see if this txn effects any orderbook
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void processTxn(Ledger::ref ledger, const ALTransaction& alTx, Json::Value& jvObj);
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};
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#endif
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// vim:ts=4
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