refactor Transaction. compiling. still need to test

2025-12-06 17:27:52 +00:00 · 2012-11-14 13:05:59 -08:00
parent c1611f3b07
commit 5bbdd90a4c
23 changed files with 1515 additions and 1516 deletions
--- a/src/cpp/ripple/TrustSetTransactor.cpp
+++ b/src/cpp/ripple/TrustSetTransactor.cpp
@@ -0,0 +1,147 @@
+#include "TrustSetTransactor.h"
+
+TER TrustSetTransactor::doApply()
+{
+	TER			terResult		= tesSUCCESS;
+	Log(lsINFO) << "doTrustSet>";
+
+	const STAmount		saLimitAmount	= mTxn.getFieldAmount(sfLimitAmount);
+	const bool			bQualityIn		= mTxn.isFieldPresent(sfQualityIn);
+	const uint32		uQualityIn		= bQualityIn ? mTxn.getFieldU32(sfQualityIn) : 0;
+	const bool			bQualityOut		= mTxn.isFieldPresent(sfQualityOut);
+	const uint32		uQualityOut		= bQualityIn ? mTxn.getFieldU32(sfQualityOut) : 0;
+	const uint160		uCurrencyID		= saLimitAmount.getCurrency();
+	uint160				uDstAccountID	= saLimitAmount.getIssuer();
+	const bool			bFlipped		= mTxnAccountID > uDstAccountID;		// true, iff current is not lowest.
+	bool				bDelIndex		= false;
+
+	// Check if destination makes sense.
+
+	if (saLimitAmount.isNegative())
+	{
+		Log(lsINFO) << "doTrustSet: Malformed transaction: Negatived credit limit.";
+
+		return temBAD_AMOUNT;
+	}
+	else if (!uDstAccountID)
+	{
+		Log(lsINFO) << "doTrustSet: Malformed transaction: Destination account not specified.";
+
+		return temDST_NEEDED;
+	}
+	else if (mTxnAccountID == uDstAccountID)
+	{
+		Log(lsINFO) << "doTrustSet: Malformed transaction: Can not extend credit to self.";
+
+		return temDST_IS_SRC;
+	}
+
+	SLE::pointer		sleDst		= mEngine->entryCache(ltACCOUNT_ROOT, Ledger::getAccountRootIndex(uDstAccountID));
+	if (!sleDst)
+	{
+		Log(lsINFO) << "doTrustSet: Delay transaction: Destination account does not exist.";
+
+		return terNO_DST;
+	}
+
+	STAmount		saLimitAllow	= saLimitAmount;
+	saLimitAllow.setIssuer(mTxnAccountID);
+
+	SLE::pointer		sleRippleState	= mEngine->entryCache(ltRIPPLE_STATE, Ledger::getRippleStateIndex(mTxnAccountID, uDstAccountID, uCurrencyID));
+	if (sleRippleState)
+	{
+		// A line exists in one or more directions.
+#if 0
+		if (!saLimitAmount)
+		{
+			// Zeroing line.
+			uint160		uLowID			= sleRippleState->getFieldAmount(sfLowLimit).getIssuer();
+			uint160		uHighID			= sleRippleState->getFieldAmount(sfHighLimit).getIssuer();
+			bool		bLow			= uLowID == uSrcAccountID;
+			bool		bHigh			= uLowID == uDstAccountID;
+			bool		bBalanceZero	= !sleRippleState->getFieldAmount(sfBalance);
+			STAmount	saDstLimit		= sleRippleState->getFieldAmount(bSendLow ? sfLowLimit : sfHighLimit);
+			bool		bDstLimitZero	= !saDstLimit;
+
+			assert(bLow || bHigh);
+
+			if (bBalanceZero && bDstLimitZero)
+			{
+				// Zero balance and eliminating last limit.
+
+				bDelIndex	= true;
+				terResult	= dirDelete(false, uSrcRef, Ledger::getOwnerDirIndex(mTxnAccountID), sleRippleState->getIndex(), false);
+			}
+		}
+#endif
+
+		if (!bDelIndex)
+		{
+			sleRippleState->setFieldAmount(bFlipped ? sfHighLimit: sfLowLimit, saLimitAllow);
+
+			if (!bQualityIn)
+			{
+				nothing();
+			}
+			else if (uQualityIn)
+			{
+				sleRippleState->setFieldU32(bFlipped ? sfLowQualityIn : sfHighQualityIn, uQualityIn);
+			}
+			else
+			{
+				sleRippleState->makeFieldAbsent(bFlipped ? sfLowQualityIn : sfHighQualityIn);
+			}
+
+			if (!bQualityOut)
+			{
+				nothing();
+			}
+			else if (uQualityOut)
+			{
+				sleRippleState->setFieldU32(bFlipped ? sfLowQualityOut : sfHighQualityOut, uQualityOut);
+			}
+			else
+			{
+				sleRippleState->makeFieldAbsent(bFlipped ? sfLowQualityOut : sfHighQualityOut);
+			}
+
+			mEngine->entryModify(sleRippleState);
+		}
+
+		Log(lsINFO) << "doTrustSet: Modifying ripple line: bDelIndex=" << bDelIndex;
+	}
+	// Line does not exist.
+	else if (!saLimitAmount)
+	{
+		Log(lsINFO) << "doTrustSet: Redundant: Setting non-existent ripple line to 0.";
+
+		return terNO_LINE_NO_ZERO;
+	}
+	else
+	{
+		// Create a new ripple line.
+		sleRippleState	= mEngine->entryCreate(ltRIPPLE_STATE, Ledger::getRippleStateIndex(mTxnAccountID, uDstAccountID, uCurrencyID));
+
+		Log(lsINFO) << "doTrustSet: Creating ripple line: " << sleRippleState->getIndex().ToString();
+
+		sleRippleState->setFieldAmount(sfBalance, STAmount(uCurrencyID, ACCOUNT_ONE));	// Zero balance in currency.
+		sleRippleState->setFieldAmount(bFlipped ? sfHighLimit : sfLowLimit, saLimitAllow);
+		sleRippleState->setFieldAmount(bFlipped ? sfLowLimit : sfHighLimit, STAmount(uCurrencyID, uDstAccountID));
+
+		if (uQualityIn)
+			sleRippleState->setFieldU32(bFlipped ? sfHighQualityIn : sfLowQualityIn, uQualityIn);
+		if (uQualityOut)
+			sleRippleState->setFieldU32(bFlipped ? sfHighQualityOut : sfLowQualityOut, uQualityOut);
+
+		uint64			uSrcRef;							// Ignored, dirs never delete.
+
+		terResult	= mEngine->getNodes().dirAdd(uSrcRef, Ledger::getOwnerDirIndex(mTxnAccountID), sleRippleState->getIndex());
+
+		if (tesSUCCESS == terResult)
+			terResult	= mEngine->getNodes().dirAdd(uSrcRef, Ledger::getOwnerDirIndex(uDstAccountID), sleRippleState->getIndex());
+	}
+
+	Log(lsINFO) << "doTrustSet<";
+
+	return terResult;
+}