void
AmendmentTableImpl::doVoting (Ledger::ref lastClosedLedger,
SHAMap::ref initialPosition)
{
// LCL must be flag ledger
assert((lastClosedLedger->getLedgerSeq () % 256) == 0);
AmendmentSet amendmentSet (lastClosedLedger->getParentCloseTimeNC ());
// get validations for ledger before flag ledger
ValidationSet valSet = getApp().getValidations ().getValidations (lastClosedLedger->getParentHash ());
for (auto const& entry : valSet)
{
auto const& val = *entry.second;
if (val.isTrusted ())
{
amendmentSet.addVoter ();
if (val.isFieldPresent (sfAmendments))
{
for (auto const& amendment : val.getFieldV256 (sfAmendments))
{
amendmentSet.addVote (amendment);
}
}
}
}
reportValidations (amendmentSet);
amendmentList_t lAmendments = getToEnable (lastClosedLedger->getCloseTimeNC ());
for (auto const& uAmendment : lAmendments)
{
if (m_journal.warning) m_journal.warning <<
"Voting for amendment: " << uAmendment;
// Create the transaction to enable the amendment
STTx trans (ttAMENDMENT);
trans.setFieldAccount (sfAccount, Account ());
trans.setFieldH256 (sfAmendment, uAmendment);
uint256 txID = trans.getTransactionID ();
if (m_journal.warning) m_journal.warning <<
"Vote ID: " << txID;
// Inject the transaction into our initial proposal
Serializer s;
trans.add (s, true);
#if RIPPLE_PROPOSE_AMENDMENTS
SHAMapItem::pointer tItem = std::make_shared<SHAMapItem> (txID, s.peekData ());
if (!initialPosition->addGiveItem (tItem, true, false))
{
if (m_journal.warning) m_journal.warning <<
"Ledger already had amendment transaction";
}
#endif
}
}
void dostartvoting(ledger::ref lastclosedledger, shamap::ref initialposition) override
{
// lcl must be validation ledger
assert (isstartledger(lastclosedledger));
std::uint32_t dividendledger = lastclosedledger->getledgerseq();
std::map<std::pair<uint64_t, uint64_t>, int> votemap;
// get validations for validation ledger
validationset const set = getapp().getvalidations ().getvalidations (lastclosedledger->gethash ());
for (auto const& e : set)
{
stvalidation const& val = *e.second;
if (val.istrusted ())
{
if (val.isfieldpresent (sfdividendledger)
&& val.isfieldpresent (sfdividendcoins)
&& val.isfieldpresent (sfdividendcoinsvbc))
{
uint32_t ledgerseq = val.getfieldu32 (sfdividendledger);
if (ledgerseq != dividendledger) {
m_journal.warning << "mismatch ledger seq " << ledgerseq << " from validator " << val.getnodeid() << " ours: " << dividendledger << " in " << lastclosedledger->gethash();
continue;
}
++votemap[std::make_pair(val.getfieldu64 (sfdividendcoins), val.getfieldu64 (sfdividendcoinsvbc))];
}
}
}
std::pair<uint64_t, uint64_t> ourvote = std::make_pair(0, 0);
int weight = 0;
for (auto const& e : votemap)
{
// take most voted value
if (e.second > weight)
{
ourvote = e.first;
weight = e.second;
}
}
if (weight < getapp().getledgermaster().getminvalidations()) {
m_journal.warning << weight << " votes are not enough to start dividend for " << dividendledger;
return;
}
if (ourvote.first==0 && ourvote.second==0) {
if (m_journal.warning)
m_journal.warning << "not voting for a dividend start because both vrp and vbc voted are 0";
return;
}
if (ourvote.first + lastclosedledger->gettotalcoins() > vrp_increase_max &&
ourvote.second + lastclosedledger->gettotalcoinsvbc() > vbc_increase_max) {
if (m_journal.error)
m_journal.error << "not voting for a dividend start because both vrp and vbc will exceed max.";
return;
}
if (m_journal.warning)
m_journal.warning << "we are voting for a dividend start based " << dividendledger << " with vrp " << ourvote.first << " vbc " << ourvote.second << " with " << weight << " same votes in " << lastclosedledger->gethash();
sttx trans(ttdividend);
trans.setfieldu8(sfdividendtype, dividendmaster::divtype_start);
trans.setfieldaccount(sfaccount, account());
trans.setfieldu32(sfdividendledger, dividendledger);
trans.setfieldu64(sfdividendcoins, ourvote.first);
trans.setfieldu64(sfdividendcoinsvbc, ourvote.second);
uint256 txid = trans.gettransactionid();
if (m_journal.warning)
m_journal.warning << "vote: " << txid;
serializer s;
trans.add (s, true);
shamapitem::pointer titem = std::make_shared<shamapitem> (txid, s.peekdata ());
if (!initialposition->addgiveitem (titem, true, false))
{
if (m_journal.warning)
m_journal.warning << "ledger already had dividend start";
}
}
bool shamap::compare (shamap::ref othermap, delta& differences, int maxcount)
{
// compare two hash trees, add up to maxcount differences to the difference table
// return value: true=complete table of differences given, false=too many differences
// throws on corrupt tables or missing nodes
// caution: othermap is not locked and must be immutable
assert (isvalid () && othermap && othermap->isvalid ());
using stackentry = std::pair <shamaptreenode*, shamaptreenode*>;
std::stack <stackentry, std::vector<stackentry>> nodestack; // track nodes we've pushed
if (gethash () == othermap->gethash ())
return true;
nodestack.push ({root.get(), othermap->root.get()});
while (!nodestack.empty ())
{
shamaptreenode* ournode = nodestack.top().first;
shamaptreenode* othernode = nodestack.top().second;
nodestack.pop ();
if (!ournode || !othernode)
{
assert (false);
throw shamapmissingnode (mtype, uint256 ());
}
if (ournode->isleaf () && othernode->isleaf ())
{
// two leaves
if (ournode->gettag () == othernode->gettag ())
{
if (ournode->peekdata () != othernode->peekdata ())
{
differences.insert (std::make_pair (ournode->gettag (),
deltaref (ournode->peekitem (),
othernode->peekitem ())));
if (--maxcount <= 0)
return false;
}
}
else
{
differences.insert (std::make_pair(ournode->gettag (),
deltaref(ournode->peekitem(),
shamapitem::pointer ())));
if (--maxcount <= 0)
return false;
differences.insert(std::make_pair(othernode->gettag (),
deltaref(shamapitem::pointer(),
othernode->peekitem ())));
if (--maxcount <= 0)
return false;
}
}
else if (ournode->isinner () && othernode->isleaf ())
{
if (!walkbranch (ournode, othernode->peekitem (),
true, differences, maxcount))
return false;
}
else if (ournode->isleaf () && othernode->isinner ())
{
if (!othermap->walkbranch (othernode, ournode->peekitem (),
false, differences, maxcount))
return false;
}
else if (ournode->isinner () && othernode->isinner ())
{
for (int i = 0; i < 16; ++i)
if (ournode->getchildhash (i) != othernode->getchildhash (i))
{
if (othernode->isemptybranch (i))
{
// we have a branch, the other tree does not
shamaptreenode* inode = descendthrow (ournode, i);
if (!walkbranch (inode,
shamapitem::pointer (), true,
differences, maxcount))
return false;
}
else if (ournode->isemptybranch (i))
{
// the other tree has a branch, we do not
shamaptreenode* inode =
othermap->descendthrow(othernode, i);
if (!othermap->walkbranch (inode,
shamapitem::pointer(),
false, differences, maxcount))
return false;
}
else // the two trees have different non-empty branches
nodestack.push ({descendthrow (ournode, i),
othermap->descendthrow (othernode, i)});
}
}
else
assert (false);
}
return true;
}
void
FeeVoteImpl::doVoting (Ledger::ref lastClosedLedger,
SHAMap::ref initialPosition)
{
// LCL must be flag ledger
assert ((lastClosedLedger->getLedgerSeq () % 256) == 0);
detail::VotableInteger<std::uint64_t> baseFeeVote (
lastClosedLedger->getBaseFee (), target_.reference_fee);
detail::VotableInteger<std::uint32_t> baseReserveVote (
lastClosedLedger->getReserve (0), target_.account_reserve);
detail::VotableInteger<std::uint32_t> incReserveVote (
lastClosedLedger->getReserveInc (), target_.owner_reserve);
// get validations for ledger before flag
ValidationSet const set =
getApp().getValidations ().getValidations (
lastClosedLedger->getParentHash ());
for (auto const& e : set)
{
SerializedValidation const& val = *e.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
std::uint64_t const baseFee = baseFeeVote.getVotes ();
std::uint32_t const baseReserve = baseReserveVote.getVotes ();
std::uint32_t const incReserve = incReserveVote.getVotes ();
// add transactions to our position
if ((baseFee != lastClosedLedger->getBaseFee ()) ||
(baseReserve != lastClosedLedger->getReserve (0)) ||
(incReserve != lastClosedLedger->getReserveInc ()))
{
if (journal_.warning) journal_.warning <<
"We are voting for a fee change: " << baseFee <<
"/" << baseReserve <<
"/" << incReserve;
SerializedTransaction trans (ttFEE);
trans.setFieldAccount (sfAccount, Account ());
trans.setFieldU64 (sfBaseFee, baseFee);
trans.setFieldU32 (sfReferenceFeeUnits, 10);
trans.setFieldU32 (sfReserveBase, baseReserve);
trans.setFieldU32 (sfReserveIncrement, incReserve);
uint256 txID = trans.getTransactionID ();
if (journal_.warning)
journal_.warning << "Vote: " << txID;
Serializer s;
trans.add (s, true);
SHAMapItem::pointer tItem = std::make_shared<SHAMapItem> (
txID, s.peekData ());
if (!initialPosition->addGiveItem (tItem, true, false))
{
if (journal_.warning) journal_.warning <<
"Ledger already had fee change";
}
}
}