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Don't crash if a node is deleted.

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JoelKatz
2013-02-08 22:11:07 -08:00
parent 00fd3d5a49
commit 1d12e7a8b7
1 changed files with 14 additions and 11 deletions
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25
src/cpp/ripple/OrderBookDB.cpp
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@@ -182,20 +182,23 @@ void OrderBookDB::processTxn(const SerializedTransaction& stTxn, TER terResult,T
field=&sfNewFields; field=&sfNewFields;
} }
const STObject* previous = dynamic_cast<const STObject*>(node.peekAtPField(*field)); if (field)
if(previous)
{ {
STAmount takerGets = previous->getFieldAmount(sfTakerGets); const STObject* previous = dynamic_cast<const STObject*>(node.peekAtPField(*field));
uint160 currencyOut=takerGets.getCurrency(); if(previous)
uint160 issuerOut=takerGets.getIssuer(); {
STAmount takerGets = previous->getFieldAmount(sfTakerGets);
uint160 currencyOut=takerGets.getCurrency();
uint160 issuerOut=takerGets.getIssuer();
STAmount takerPays = previous->getFieldAmount(sfTakerPays); STAmount takerPays = previous->getFieldAmount(sfTakerPays);
uint160 currencyIn=takerPays.getCurrency(); uint160 currencyIn=takerPays.getCurrency();
uint160 issuerIn=takerPays.getIssuer(); uint160 issuerIn=takerPays.getIssuer();
// determine the OrderBook // determine the OrderBook
BookListeners::pointer book=getBookListeners(currencyIn,currencyOut,issuerIn,issuerOut); BookListeners::pointer book=getBookListeners(currencyIn,currencyOut,issuerIn,issuerOut);
if(book) book->publish(jvObj); if(book) book->publish(jvObj);
}
} }
} }
}catch(...) }catch(...)