Finish fee change logic.

This commit is contained in:
JoelKatz
2013-04-23 09:57:08 -07:00
parent 23acc3efef
commit 9c9fb267d9
5 changed files with 115 additions and 7 deletions

View File

@@ -1,4 +1,7 @@
#include "ChangeTransactor.h"
#include "Log.h"
SETUP_LOG();
TER ChangeTransactor::doApply()
{
@@ -14,10 +17,16 @@ TER ChangeTransactor::doApply()
TER ChangeTransactor::checkSig()
{
if (mTxn.getFieldAccount160(sfAccount).isNonZero())
{
cLog(lsWARNING) << "Change transaction had bad source account";
return temBAD_SRC_ACCOUNT;
}
if (!mTxn.getSigningPubKey().empty() || !mTxn.getSignature().empty())
{
cLog(lsWARNING) << "Change transaction had bad signature";
return temBAD_SIGNATURE;
}
return tesSUCCESS;
}
@@ -25,15 +34,26 @@ TER ChangeTransactor::checkSig()
TER ChangeTransactor::checkSeq()
{
if (mTxn.getSequence() != 0)
{
cLog(lsWARNING) << "Change transaction had bad sequence";
return temBAD_SEQUENCE;
}
return tesSUCCESS;
}
TER ChangeTransactor::payFee()
{
if (isSetBit(mParams, tapOPEN_LEDGER))
{
cLog(lsWARNING) << "Change transaction against open ledger";
return temINVALID;
}
if (mTxn.getTransactionFee() != STAmount())
{
cLog(lsWARNING) << "Change transaction with non-zero fee";
return temBAD_FEE;
}
return tesSUCCESS;
}
@@ -70,5 +90,6 @@ TER ChangeTransactor::applyFee()
feeObject->setFieldU32(sfReserveIncrement, mTxn.getFieldU32(sfReserveIncrement));
mEngine->entryModify(feeObject);
cLog(lsWARNING) << "Fees have been changed";
return tesSUCCESS;
}

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@@ -3,6 +3,9 @@
#include <boost/foreach.hpp>
#include "Log.h"
#include "Application.h"
#include "ValidationCollection.h"
#include "HashPrefixes.h"
SETUP_LOG();
@@ -243,6 +246,7 @@ protected:
INT mTarget; // The setting we want
std::map<INT, int> mVoteMap;
public:
VotableInteger(INT current, INT target) : mCurrent(current), mTarget(target)
{
++mVoteMap[mTarget]; // Add our vote
@@ -268,8 +272,8 @@ protected:
INT ourVote = mCurrent;
int weight = 0;
typedef std::pair<INT, int> INTint_pair_t;
BOOST_FOREACH(INTint_pair_t& value, mVoteMap)
typedef typename std::map<INT, int>::value_type mapVType;
BOOST_FOREACH(const mapVType& value, mVoteMap)
{ // Take most voted value between current and target, inclusive
if ((value.first <= std::max(mTarget, mCurrent)) &&
(value.first >= std::min(mTarget, mCurrent)) &&
@@ -284,16 +288,88 @@ protected:
}
};
void FeeVote::doValidation(Ledger::ref lastClosedLedger, STObject& validation)
{
if (lastClosedLedger->getBaseFee() != mTargetBaseFee)
{
cLog(lsINFO) << "Voting for base fee of " << mTargetBaseFee;
validation.setFieldU64(sfBaseFee, mTargetBaseFee);
}
if (lastClosedLedger->getReserve(0) != mTargetReserveBase)
{
cLog(lsINFO) << "Voting for base resrve of " << mTargetReserveBase;
validation.setFieldU32(sfReserveBase, mTargetReserveBase);
}
if (lastClosedLedger->getReserveInc() != mTargetReserveIncrement)
{
cLog(lsINFO) << "Voting for reserve increment of " << mTargetReserveIncrement;
validation.setFieldU32(sfReserveIncrement, mTargetReserveIncrement);
}
}
void FeeVote::doFeeVoting(Ledger::ref lastClosedLedger, SHAMap::ref initialPosition)
{
// LCL must be flag ledger
assert((lastClosedLedger->getLedgerSeq() % 256) == 0);
VotableInteger<uint64> baseFeeVote(lastClosedLedger->getBaseFee(), mTargetBaseFee);
VotableInteger<uint32> baseReserveVote(lastClosedLedger->getReserve(0), mTargetReserveBase);
VotableInteger<uint32> incReserveVote(lastClosedLedger->getReserveInc(), mTargetReserveIncrement);
// get validations for ledger before flag
ValidationSet set = theApp->getValidations().getValidations(lastClosedLedger->getParentHash());
BOOST_FOREACH(ValidationSet::value_type& value, set)
{
SerializedValidation& val = *value.second;
if (val.isTrusted())
{
if (val.isFieldPresent(sfBaseFee))
baseFeeVote.addVote(val.getFieldU64(sfBaseFee));
else
baseFeeVote.noVote();
if (val.isFieldPresent(sfReserveBase))
baseReserveVote.addVote(val.getFieldU32(sfReserveBase));
else
baseReserveVote.noVote();
if (val.isFieldPresent(sfReserveIncrement))
incReserveVote.addVote(val.getFieldU32(sfReserveIncrement));
else
incReserveVote.noVote();
}
}
// choose our positions
uint64 baseFee = baseFeeVote.getVotes();
uint32 baseReserve = baseReserveVote.getVotes();
uint32 incReserve = incReserveVote.getVotes();
// add transactions to our position
if ((baseFee != lastClosedLedger->getBaseFee()) ||
(baseReserve != lastClosedLedger->getReserve(0)) ||
(incReserve != lastClosedLedger->getReserveInc()))
{
cLog(lsWARNING) << "We are voting for a fee change: " << baseFee << "/" << baseReserve << "/" << incReserve;
SerializedTransaction trans(ttFEE);
trans.setFieldU64(sfBaseFee, baseFee);
trans.setFieldU32(sfReferenceFeeUnits, 10);
trans.setFieldU32(sfReserveBase, baseReserve);
trans.setFieldU32(sfReserveIncrement, incReserve);
Serializer s;
s.add32(sHP_TransactionID);
trans.add(s, true);
uint256 txID = s.getSHA512Half();
cLog(lsWARNING) << "Vote: " << txID;
SHAMapItem::pointer tItem = boost::make_shared<SHAMapItem>(txID, s.peekData());
if (!initialPosition->addGiveItem(tItem, true, false))
{
cLog(lsWARNING) << "Ledger already had fee change";
}
}
}
// vim:ts=4

View File

@@ -93,8 +93,10 @@ public:
mTargetReserveIncrement(targetReserveIncrement)
{ ; }
void doValidation(STObject& baseValidation);
// add our wishes to our validation
void doValidation(Ledger::ref lastClosedLedger, STObject& baseValidation);
// vote on the fee we want
void doFeeVoting(Ledger::ref lastClosedLedger, SHAMap::ref initialPosition);
};

View File

@@ -317,7 +317,16 @@ void LedgerConsensus::handleLCL(const uint256& lclHash)
void LedgerConsensus::takeInitialPosition(Ledger& initialLedger)
{
SHAMap::pointer initialSet = initialLedger.peekTransactionMap()->snapShot(false);
SHAMap::pointer initialSet;
if (mProposing && mHaveCorrectLCL && ((mPreviousLedger->getLedgerSeq() % 256) == 0))
{ // previous ledger was flag ledger
SHAMap::pointer preSet = initialLedger.peekTransactionMap()->snapShot(true);
theApp->getFeeVote().doFeeVoting(mPreviousLedger, preSet);
initialSet = preSet->snapShot(false);
}
else
initialSet = initialLedger.peekTransactionMap()->snapShot(false);
uint256 txSet = initialSet->getHash();
cLog(lsINFO) << "initial position " << txSet;
mapComplete(txSet, initialSet, false);
@@ -1208,6 +1217,8 @@ void LedgerConsensus::accept(SHAMap::ref set, LoadEvent::pointer)
SerializedValidation::pointer v = boost::make_shared<SerializedValidation>
(newLCLHash, theApp->getOPs().getValidationTimeNC(), mValPublic, mProposing);
v->setFieldU32(sfLedgerSequence, newLCL->getLedgerSeq());
if (((newLCL->getLedgerSeq() + 1) % 256) == 0) // next ledger is flag ledger
theApp->getFeeVote().doValidation(newLCL, *v);
v->sign(signingHash, mValPrivate);
v->setTrusted();
theApp->isNew(signingHash); // suppress it if we receive it

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@@ -25,8 +25,6 @@ enum TransactionEngineParams
tapRETRY = 0x20, // This is not the transaction's last pass
// Transaction can be retried, soft failures allowed
tapAFTER_END = 0x40, // We are processing the transaction last
tapADMIN = 0x400, // Transaction came from a privileged source
};