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First cut at RPC book_offers.

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This commit is contained in:
Arthur Britto
2013-03-01 20:30:25 -08:00
parent 4bcc726303
commit 2699f20f3f
1 changed files with 65 additions and 1 deletions
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66
src/cpp/ripple/NetworkOPs.cpp
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@@ -1776,7 +1776,71 @@ InfoSub::pointer NetworkOPs::addRpcSub(const std::string& strUrl, InfoSub::ref r
void NetworkOPs::getBookPage(Ledger::pointer lpLedger, const uint160& uTakerPaysCurrencyID, const uint160& uTakerPaysIssuerID, const uint160& uTakerGetsCurrencyID, const uint160& uTakerGetsIssuerID, const bool bProof, const unsigned int iLimit, const Json::Value& jvMarker, Json::Value& jvResult) void NetworkOPs::getBookPage(Ledger::pointer lpLedger, const uint160& uTakerPaysCurrencyID, const uint160& uTakerPaysIssuerID, const uint160& uTakerGetsCurrencyID, const uint160& uTakerGetsIssuerID, const bool bProof, const unsigned int iLimit, const Json::Value& jvMarker, Json::Value& jvResult)
{ {
jvResult["offers"] = Json::Value(Json::arrayValue); Json::Value jvOffers = Json::Value(Json::arrayValue);
const uint256 uBookBase = Ledger::getBookBase(uTakerGetsCurrencyID, uTakerGetsIssuerID, uTakerPaysCurrencyID, uTakerPaysIssuerID);
const uint256 uBookEnd = Ledger::getQualityNext(uBookBase);
uint256 uTipIndex = uBookBase;
cLog(lsTRACE) << boost::str(boost::format("getBookPage: uBookBase=%s") % uBookBase);
cLog(lsTRACE) << boost::str(boost::format("getBookPage: uBookEnd=%s") % uBookEnd);
cLog(lsTRACE) << boost::str(boost::format("getBookPage: uTipIndex=%s") % uTipIndex);
LedgerEntrySet lesActive(lpLedger);
bool bDone = false;
bool bDirectAdvance = true;
SLE::pointer sleOfferDir;
uint256 uOfferIndex;
unsigned int uBookEntry;
while (!bDone) {
if (bDirectAdvance) {
bDirectAdvance = false;
cLog(lsTRACE) << boost::str(boost::format("getBookPage: bDirectAdvance"));
sleOfferDir = lesActive.entryCache(ltDIR_NODE, lpLedger->getNextLedgerIndex(uTipIndex, uBookEnd));
if (!sleOfferDir)
{
cLog(lsTRACE) << boost::str(boost::format("getBookPage: bDone"));
bDone = true;
}
else
{
uTipIndex = sleOfferDir->getIndex();
SLE::pointer sleBookNode;
lesActive.dirFirst(uTipIndex, sleBookNode, uBookEntry, uOfferIndex);
cLog(lsTRACE) << boost::str(boost::format("getBookPage: uTipIndex=%s") % uTipIndex);
cLog(lsTRACE) << boost::str(boost::format("getBookPage: uOfferIndex=%s") % uOfferIndex);
}
}
if (!bDone)
{
SLE::pointer sleOffer = lesActive.entryCache(ltOFFER, uOfferIndex);
const uint160 uOfferOwnerID = sleOffer->getFieldAccount(sfAccount).getAccountID();
STAmount saOfferPays = sleOffer->getFieldAmount(sfTakerGets);
STAmount saOfferGets = sleOffer->getFieldAmount(sfTakerPays);
STAmount saOfferFunds = lesActive.accountFunds(uOfferOwnerID, saOfferPays);
if (!lesActive.dirNext(uTipIndex, sleOfferDir, uBookEntry, uOfferIndex))
{
bDirectAdvance = true;
}
else
{
cLog(lsTRACE) << boost::str(boost::format("getBookPage: uOfferIndex=%s") % uOfferIndex);
jvOffers.append(sleOffer->getJson(0));
}
}
}
jvResult["offers"] = jvOffers;
// jvResult["marker"] = Json::Value(Json::arrayValue); // jvResult["marker"] = Json::Value(Json::arrayValue);
// jvResult["nodes"] = Json::Value(Json::arrayValue); // jvResult["nodes"] = Json::Value(Json::arrayValue);
} }