You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
812 lines
22 KiB
812 lines
22 KiB
/*
|
|
This file is part of cpp-ethereum.
|
|
|
|
cpp-ethereum is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
cpp-ethereum is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/** @file Block.cpp
|
|
* @author Gav Wood <i@gavwood.com>
|
|
* @date 2014
|
|
*/
|
|
|
|
#include "Block.h"
|
|
|
|
#include <ctime>
|
|
#include <boost/filesystem.hpp>
|
|
#include <boost/timer.hpp>
|
|
#include <libdevcore/CommonIO.h>
|
|
#include <libdevcore/Assertions.h>
|
|
#include <libdevcore/StructuredLogger.h>
|
|
#include <libdevcore/TrieHash.h>
|
|
#include <libevmcore/Instruction.h>
|
|
#include <libethcore/Exceptions.h>
|
|
#include <libethcore/Params.h>
|
|
#include <libevm/VMFactory.h>
|
|
#include "BlockChain.h"
|
|
#include "Defaults.h"
|
|
#include "ExtVM.h"
|
|
#include "Executive.h"
|
|
#include "CachedAddressState.h"
|
|
#include "CanonBlockChain.h"
|
|
#include "TransactionQueue.h"
|
|
using namespace std;
|
|
using namespace dev;
|
|
using namespace dev::eth;
|
|
namespace fs = boost::filesystem;
|
|
|
|
#define ctrace clog(BlockTrace)
|
|
#define ETH_TIMED_ENACTMENTS 0
|
|
|
|
static const unsigned c_maxSyncTransactions = 256;
|
|
|
|
const char* BlockSafeExceptions::name() { return EthViolet "⚙" EthBlue " ℹ"; }
|
|
const char* BlockDetail::name() { return EthViolet "⚙" EthWhite " ◌"; }
|
|
const char* BlockTrace::name() { return EthViolet "⚙" EthGray " ◎"; }
|
|
const char* BlockChat::name() { return EthViolet "⚙" EthWhite " ◌"; }
|
|
|
|
Block::Block(OverlayDB const& _db, BaseState _bs, Address _coinbaseAddress):
|
|
m_state(_db, _bs),
|
|
m_beneficiary(_coinbaseAddress),
|
|
m_blockReward(c_blockReward)
|
|
{
|
|
m_previousBlock.clear();
|
|
m_currentBlock.clear();
|
|
// assert(m_state.root() == m_previousBlock.stateRoot());
|
|
}
|
|
|
|
Block::Block(Block const& _s):
|
|
m_state(_s.m_state),
|
|
m_transactions(_s.m_transactions),
|
|
m_receipts(_s.m_receipts),
|
|
m_transactionSet(_s.m_transactionSet),
|
|
m_previousBlock(_s.m_previousBlock),
|
|
m_currentBlock(_s.m_currentBlock),
|
|
m_beneficiary(_s.m_beneficiary),
|
|
m_blockReward(_s.m_blockReward)
|
|
{
|
|
m_precommit = m_state;
|
|
m_committedToMine = false;
|
|
}
|
|
|
|
Block& Block::operator=(Block const& _s)
|
|
{
|
|
m_state = _s.m_state;
|
|
m_transactions = _s.m_transactions;
|
|
m_receipts = _s.m_receipts;
|
|
m_transactionSet = _s.m_transactionSet;
|
|
m_previousBlock = _s.m_previousBlock;
|
|
m_currentBlock = _s.m_currentBlock;
|
|
m_beneficiary = _s.m_beneficiary;
|
|
m_blockReward = _s.m_blockReward;
|
|
|
|
m_precommit = m_state;
|
|
m_committedToMine = false;
|
|
return *this;
|
|
}
|
|
|
|
void Block::resetCurrent()
|
|
{
|
|
m_transactions.clear();
|
|
m_receipts.clear();
|
|
m_transactionSet.clear();
|
|
m_currentBlock = BlockInfo();
|
|
m_currentBlock.setCoinbaseAddress(m_beneficiary);
|
|
m_currentBlock.setTimestamp(max(m_previousBlock.timestamp() + 1, (u256)time(0)));
|
|
m_currentBlock.populateFromParent(m_previousBlock);
|
|
|
|
// TODO: check.
|
|
|
|
m_state.setRoot(m_previousBlock.stateRoot());
|
|
m_precommit = m_state;
|
|
m_committedToMine = false;
|
|
}
|
|
|
|
PopulationStatistics Block::populateFromChain(BlockChain const& _bc, h256 const& _h, ImportRequirements::value _ir)
|
|
{
|
|
PopulationStatistics ret { 0.0, 0.0 };
|
|
|
|
if (!_bc.isKnown(_h))
|
|
{
|
|
// Might be worth throwing here.
|
|
cwarn << "Invalid block given for state population: " << _h;
|
|
BOOST_THROW_EXCEPTION(BlockNotFound() << errinfo_target(_h));
|
|
}
|
|
|
|
auto b = _bc.block(_h);
|
|
BlockInfo bi(b);
|
|
if (bi.number())
|
|
{
|
|
// Non-genesis:
|
|
|
|
// 1. Start at parent's end state (state root).
|
|
BlockInfo bip(_bc.block(bi.parentHash()));
|
|
sync(_bc, bi.parentHash(), bip);
|
|
|
|
// 2. Enact the block's transactions onto this state.
|
|
m_beneficiary = bi.beneficiary();
|
|
Timer t;
|
|
auto vb = _bc.verifyBlock(&b, function<void(Exception&)>(), _ir | ImportRequirements::TransactionBasic);
|
|
ret.verify = t.elapsed();
|
|
t.restart();
|
|
enact(vb, _bc);
|
|
ret.enact = t.elapsed();
|
|
}
|
|
else
|
|
{
|
|
// Genesis required:
|
|
// We know there are no transactions, so just populate directly.
|
|
m_state = State(m_state.db(), BaseState::Empty); // TODO: try with PreExisting.
|
|
sync(_bc, _h, bi);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
bool Block::sync(BlockChain const& _bc)
|
|
{
|
|
return sync(_bc, _bc.currentHash());
|
|
}
|
|
|
|
bool Block::sync(BlockChain const& _bc, h256 const& _block, BlockInfo const& _bi)
|
|
{
|
|
bool ret = false;
|
|
// BLOCK
|
|
BlockInfo bi = _bi ? _bi : _bc.info(_block);
|
|
#if ETH_PARANOIA
|
|
if (!bi)
|
|
while (1)
|
|
{
|
|
try
|
|
{
|
|
auto b = _bc.block(_block);
|
|
bi.populate(b);
|
|
break;
|
|
}
|
|
catch (Exception const& _e)
|
|
{
|
|
// TODO: Slightly nicer handling? :-)
|
|
cerr << "ERROR: Corrupt block-chain! Delete your block-chain DB and restart." << endl;
|
|
cerr << diagnostic_information(_e) << endl;
|
|
}
|
|
catch (std::exception const& _e)
|
|
{
|
|
// TODO: Slightly nicer handling? :-)
|
|
cerr << "ERROR: Corrupt block-chain! Delete your block-chain DB and restart." << endl;
|
|
cerr << _e.what() << endl;
|
|
}
|
|
}
|
|
#endif
|
|
if (bi == m_currentBlock)
|
|
{
|
|
// We mined the last block.
|
|
// Our state is good - we just need to move on to next.
|
|
m_previousBlock = m_currentBlock;
|
|
resetCurrent();
|
|
ret = true;
|
|
}
|
|
else if (bi == m_previousBlock)
|
|
{
|
|
// No change since last sync.
|
|
// Carry on as we were.
|
|
}
|
|
else
|
|
{
|
|
// New blocks available, or we've switched to a different branch. All change.
|
|
// Find most recent state dump and replay what's left.
|
|
// (Most recent state dump might end up being genesis.)
|
|
|
|
if (m_state.db().lookup(bi.stateRoot()).empty()) // TODO: API in State for this?
|
|
{
|
|
cwarn << "Unable to sync to" << bi.hash() << "; state root" << bi.stateRoot() << "not found in database.";
|
|
cwarn << "Database corrupt: contains block without stateRoot:" << bi;
|
|
cwarn << "Try rescuing the database by running: eth --rescue";
|
|
BOOST_THROW_EXCEPTION(InvalidStateRoot() << errinfo_target(bi.stateRoot()));
|
|
}
|
|
m_previousBlock = bi;
|
|
resetCurrent();
|
|
ret = true;
|
|
}
|
|
#if ALLOW_REBUILD
|
|
else
|
|
{
|
|
// New blocks available, or we've switched to a different branch. All change.
|
|
// Find most recent state dump and replay what's left.
|
|
// (Most recent state dump might end up being genesis.)
|
|
|
|
std::vector<h256> chain;
|
|
while (bi.number() != 0 && m_db.lookup(bi.stateRoot()).empty()) // while we don't have the state root of the latest block...
|
|
{
|
|
chain.push_back(bi.hash()); // push back for later replay.
|
|
bi.populate(_bc.block(bi.parentHash())); // move to parent.
|
|
}
|
|
|
|
m_previousBlock = bi;
|
|
resetCurrent();
|
|
|
|
// Iterate through in reverse, playing back each of the blocks.
|
|
try
|
|
{
|
|
for (auto it = chain.rbegin(); it != chain.rend(); ++it)
|
|
{
|
|
auto b = _bc.block(*it);
|
|
enact(&b, _bc, _ir);
|
|
cleanup(true);
|
|
}
|
|
}
|
|
catch (...)
|
|
{
|
|
// TODO: Slightly nicer handling? :-)
|
|
cerr << "ERROR: Corrupt block-chain! Delete your block-chain DB and restart." << endl;
|
|
cerr << boost::current_exception_diagnostic_information() << endl;
|
|
exit(1);
|
|
}
|
|
|
|
resetCurrent();
|
|
ret = true;
|
|
}
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
pair<TransactionReceipts, bool> Block::sync(BlockChain const& _bc, TransactionQueue& _tq, GasPricer const& _gp, unsigned msTimeout)
|
|
{
|
|
// TRANSACTIONS
|
|
pair<TransactionReceipts, bool> ret;
|
|
ret.second = false;
|
|
|
|
auto ts = _tq.topTransactions(c_maxSyncTransactions);
|
|
|
|
LastHashes lh;
|
|
|
|
auto deadline = chrono::steady_clock::now() + chrono::milliseconds(msTimeout);
|
|
|
|
for (int goodTxs = 1; goodTxs; )
|
|
{
|
|
goodTxs = 0;
|
|
for (auto const& t: ts)
|
|
if (!m_transactionSet.count(t.sha3()))
|
|
{
|
|
try
|
|
{
|
|
if (t.gasPrice() >= _gp.ask(*this))
|
|
{
|
|
// Timer t;
|
|
if (lh.empty())
|
|
lh = _bc.lastHashes();
|
|
execute(lh, t);
|
|
ret.first.push_back(m_receipts.back());
|
|
++goodTxs;
|
|
// cnote << "TX took:" << t.elapsed() * 1000;
|
|
}
|
|
else if (t.gasPrice() < _gp.ask(*this) * 9 / 10)
|
|
{
|
|
clog(StateTrace) << t.sha3() << "Dropping El Cheapo transaction (<90% of ask price)";
|
|
_tq.drop(t.sha3());
|
|
}
|
|
}
|
|
catch (InvalidNonce const& in)
|
|
{
|
|
bigint const& req = *boost::get_error_info<errinfo_required>(in);
|
|
bigint const& got = *boost::get_error_info<errinfo_got>(in);
|
|
|
|
if (req > got)
|
|
{
|
|
// too old
|
|
clog(StateTrace) << t.sha3() << "Dropping old transaction (nonce too low)";
|
|
_tq.drop(t.sha3());
|
|
}
|
|
else if (got > req + _tq.waiting(t.sender()))
|
|
{
|
|
// too new
|
|
clog(StateTrace) << t.sha3() << "Dropping new transaction (too many nonces ahead)";
|
|
_tq.drop(t.sha3());
|
|
}
|
|
else
|
|
_tq.setFuture(t.sha3());
|
|
}
|
|
catch (BlockGasLimitReached const& e)
|
|
{
|
|
bigint const& got = *boost::get_error_info<errinfo_got>(e);
|
|
if (got > m_currentBlock.gasLimit())
|
|
{
|
|
clog(StateTrace) << t.sha3() << "Dropping over-gassy transaction (gas > block's gas limit)";
|
|
_tq.drop(t.sha3());
|
|
}
|
|
else
|
|
{
|
|
// Temporarily no gas left in current block.
|
|
// OPTIMISE: could note this and then we don't evaluate until a block that does have the gas left.
|
|
// for now, just leave alone.
|
|
}
|
|
}
|
|
catch (Exception const& _e)
|
|
{
|
|
// Something else went wrong - drop it.
|
|
clog(StateTrace) << t.sha3() << "Dropping invalid transaction:" << diagnostic_information(_e);
|
|
_tq.drop(t.sha3());
|
|
}
|
|
catch (std::exception const&)
|
|
{
|
|
// Something else went wrong - drop it.
|
|
_tq.drop(t.sha3());
|
|
cwarn << t.sha3() << "Transaction caused low-level exception :(";
|
|
}
|
|
}
|
|
if (chrono::steady_clock::now() > deadline)
|
|
{
|
|
ret.second = true;
|
|
break;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
u256 Block::enactOn(VerifiedBlockRef const& _block, BlockChain const& _bc)
|
|
{
|
|
#if ETH_TIMED_ENACTMENTS
|
|
Timer t;
|
|
double populateVerify;
|
|
double populateGrand;
|
|
double syncReset;
|
|
double enactment;
|
|
#endif
|
|
|
|
// Check family:
|
|
BlockInfo biParent = _bc.info(_block.info.parentHash());
|
|
_block.info.verifyParent(biParent);
|
|
|
|
#if ETH_TIMED_ENACTMENTS
|
|
populateVerify = t.elapsed();
|
|
t.restart();
|
|
#endif
|
|
|
|
BlockInfo biGrandParent;
|
|
if (biParent.number())
|
|
biGrandParent = _bc.info(biParent.parentHash());
|
|
|
|
#if ETH_TIMED_ENACTMENTS
|
|
populateGrand = t.elapsed();
|
|
t.restart();
|
|
#endif
|
|
|
|
sync(_bc, _block.info.parentHash(), BlockInfo());
|
|
resetCurrent();
|
|
|
|
#if ETH_TIMED_ENACTMENTS
|
|
syncReset = t.elapsed();
|
|
t.restart();
|
|
#endif
|
|
|
|
m_previousBlock = biParent;
|
|
auto ret = enact(_block, _bc);
|
|
|
|
#if ETH_TIMED_ENACTMENTS
|
|
enactment = t.elapsed();
|
|
if (populateVerify + populateGrand + syncReset + enactment > 0.5)
|
|
clog(StateChat) << "popVer/popGrand/syncReset/enactment = " << populateVerify << "/" << populateGrand << "/" << syncReset << "/" << enactment;
|
|
#endif
|
|
return ret;
|
|
}
|
|
|
|
u256 Block::enact(VerifiedBlockRef const& _block, BlockChain const& _bc)
|
|
{
|
|
DEV_TIMED_FUNCTION_ABOVE(500);
|
|
|
|
// m_currentBlock is assumed to be prepopulated and reset.
|
|
#if !ETH_RELEASE
|
|
assert(m_previousBlock.hash() == _block.info.parentHash());
|
|
assert(m_currentBlock.parentHash() == _block.info.parentHash());
|
|
assert(rootHash() == m_previousBlock.stateRoot());
|
|
#endif
|
|
|
|
if (m_currentBlock.parentHash() != m_previousBlock.hash())
|
|
// Internal client error.
|
|
BOOST_THROW_EXCEPTION(InvalidParentHash());
|
|
|
|
// Populate m_currentBlock with the correct values.
|
|
m_currentBlock.noteDirty();
|
|
m_currentBlock = _block.info;
|
|
|
|
// cnote << "playback begins:" << m_state.root();
|
|
// cnote << m_state;
|
|
|
|
LastHashes lh;
|
|
DEV_TIMED_ABOVE("lastHashes", 500)
|
|
lh = _bc.lastHashes((unsigned)m_previousBlock.number());
|
|
|
|
RLP rlp(_block.block);
|
|
|
|
vector<bytes> receipts;
|
|
|
|
// All ok with the block generally. Play back the transactions now...
|
|
unsigned i = 0;
|
|
DEV_TIMED_ABOVE("txExec", 500)
|
|
for (auto const& tr: _block.transactions)
|
|
{
|
|
try
|
|
{
|
|
LogOverride<ExecutiveWarnChannel> o(false);
|
|
execute(lh, tr);
|
|
}
|
|
catch (Exception& ex)
|
|
{
|
|
ex << errinfo_transactionIndex(i);
|
|
throw;
|
|
}
|
|
|
|
RLPStream receiptRLP;
|
|
m_receipts.back().streamRLP(receiptRLP);
|
|
receipts.push_back(receiptRLP.out());
|
|
++i;
|
|
}
|
|
|
|
h256 receiptsRoot;
|
|
DEV_TIMED_ABOVE(".receiptsRoot()", 500)
|
|
receiptsRoot = orderedTrieRoot(receipts);
|
|
|
|
if (receiptsRoot != m_currentBlock.receiptsRoot())
|
|
{
|
|
InvalidReceiptsStateRoot ex;
|
|
ex << Hash256RequirementError(receiptsRoot, m_currentBlock.receiptsRoot());
|
|
ex << errinfo_receipts(receipts);
|
|
// ex << errinfo_vmtrace(vmTrace(_block.block, _bc, ImportRequirements::None));
|
|
BOOST_THROW_EXCEPTION(ex);
|
|
}
|
|
|
|
if (m_currentBlock.logBloom() != logBloom())
|
|
{
|
|
InvalidLogBloom ex;
|
|
ex << LogBloomRequirementError(logBloom(), m_currentBlock.logBloom());
|
|
ex << errinfo_receipts(receipts);
|
|
BOOST_THROW_EXCEPTION(ex);
|
|
}
|
|
|
|
// Initialise total difficulty calculation.
|
|
u256 tdIncrease = m_currentBlock.difficulty();
|
|
|
|
// Check uncles & apply their rewards to state.
|
|
if (rlp[2].itemCount() > 2)
|
|
{
|
|
TooManyUncles ex;
|
|
ex << errinfo_max(2);
|
|
ex << errinfo_got(rlp[2].itemCount());
|
|
BOOST_THROW_EXCEPTION(ex);
|
|
}
|
|
|
|
vector<BlockInfo> rewarded;
|
|
h256Hash excluded;
|
|
DEV_TIMED_ABOVE("allKin", 500)
|
|
excluded = _bc.allKinFrom(m_currentBlock.parentHash(), 6);
|
|
excluded.insert(m_currentBlock.hash());
|
|
|
|
unsigned ii = 0;
|
|
DEV_TIMED_ABOVE("uncleCheck", 500)
|
|
for (auto const& i: rlp[2])
|
|
{
|
|
try
|
|
{
|
|
auto h = sha3(i.data());
|
|
if (excluded.count(h))
|
|
{
|
|
UncleInChain ex;
|
|
ex << errinfo_comment("Uncle in block already mentioned");
|
|
ex << errinfo_unclesExcluded(excluded);
|
|
ex << errinfo_hash256(sha3(i.data()));
|
|
BOOST_THROW_EXCEPTION(ex);
|
|
}
|
|
excluded.insert(h);
|
|
|
|
// IgnoreSeal since it's a VerifiedBlock.
|
|
BlockInfo uncle(i.data(), IgnoreSeal, h, HeaderData);
|
|
|
|
BlockInfo uncleParent;
|
|
if (!_bc.isKnown(uncle.parentHash()))
|
|
BOOST_THROW_EXCEPTION(UnknownParent());
|
|
uncleParent = BlockInfo(_bc.block(uncle.parentHash()));
|
|
|
|
if ((bigint)uncleParent.number() < (bigint)m_currentBlock.number() - 7)
|
|
{
|
|
UncleTooOld ex;
|
|
ex << errinfo_uncleNumber(uncle.number());
|
|
ex << errinfo_currentNumber(m_currentBlock.number());
|
|
BOOST_THROW_EXCEPTION(ex);
|
|
}
|
|
else if (uncle.number() == m_currentBlock.number())
|
|
{
|
|
UncleIsBrother ex;
|
|
ex << errinfo_uncleNumber(uncle.number());
|
|
ex << errinfo_currentNumber(m_currentBlock.number());
|
|
BOOST_THROW_EXCEPTION(ex);
|
|
}
|
|
uncle.verifyParent(uncleParent);
|
|
|
|
rewarded.push_back(uncle);
|
|
++ii;
|
|
}
|
|
catch (Exception& ex)
|
|
{
|
|
ex << errinfo_uncleIndex(ii);
|
|
throw;
|
|
}
|
|
}
|
|
|
|
DEV_TIMED_ABOVE("applyRewards", 500)
|
|
applyRewards(rewarded);
|
|
|
|
// Commit all cached state changes to the state trie.
|
|
DEV_TIMED_ABOVE("commit", 500)
|
|
m_state.commit();
|
|
|
|
// Hash the state trie and check against the state_root hash in m_currentBlock.
|
|
if (m_currentBlock.stateRoot() != m_previousBlock.stateRoot() && m_currentBlock.stateRoot() != rootHash())
|
|
{
|
|
auto r = rootHash();
|
|
m_state.db().rollback(); // TODO: API in State for this?
|
|
BOOST_THROW_EXCEPTION(InvalidStateRoot() << Hash256RequirementError(r, m_currentBlock.stateRoot()));
|
|
}
|
|
|
|
if (m_currentBlock.gasUsed() != gasUsed())
|
|
{
|
|
// Rollback the trie.
|
|
m_state.db().rollback(); // TODO: API in State for this?
|
|
BOOST_THROW_EXCEPTION(InvalidGasUsed() << RequirementError(bigint(gasUsed()), bigint(m_currentBlock.gasUsed())));
|
|
}
|
|
|
|
return tdIncrease;
|
|
}
|
|
|
|
ExecutionResult Block::execute(LastHashes const& _lh, Transaction const& _t, Permanence _p, OnOpFunc const& _onOp)
|
|
{
|
|
// Uncommitting is a non-trivial operation - only do it once we've verified as much of the
|
|
// transaction as possible.
|
|
uncommitToMine();
|
|
|
|
std::pair<ExecutionResult, TransactionReceipt> resultReceipt = m_state.execute(EnvInfo(info(), _lh, gasUsed()), _t, _p, _onOp);
|
|
|
|
if (_p == Permanence::Committed)
|
|
{
|
|
// Add to the user-originated transactions that we've executed.
|
|
m_transactions.push_back(_t);
|
|
m_receipts.push_back(resultReceipt.second);
|
|
m_transactionSet.insert(_t.sha3());
|
|
}
|
|
|
|
return resultReceipt.first;
|
|
}
|
|
|
|
void Block::applyRewards(vector<BlockInfo> const& _uncleBlockHeaders)
|
|
{
|
|
u256 r = m_blockReward;
|
|
for (auto const& i: _uncleBlockHeaders)
|
|
{
|
|
m_state.addBalance(i.beneficiary(), m_blockReward * (8 + i.number() - m_currentBlock.number()) / 8);
|
|
r += m_blockReward / 32;
|
|
}
|
|
m_state.addBalance(m_currentBlock.beneficiary(), r);
|
|
}
|
|
|
|
void Block::commitToSeal(BlockChain const& _bc, bytes const& _extraData)
|
|
{
|
|
if (m_committedToMine)
|
|
uncommitToMine();
|
|
else
|
|
m_precommit = m_state;
|
|
|
|
vector<BlockInfo> uncleBlockHeaders;
|
|
|
|
RLPStream unclesData;
|
|
unsigned unclesCount = 0;
|
|
if (m_previousBlock.number() != 0)
|
|
{
|
|
// Find great-uncles (or second-cousins or whatever they are) - children of great-grandparents, great-great-grandparents... that were not already uncles in previous generations.
|
|
clog(StateDetail) << "Checking " << m_previousBlock.hash() << ", parent=" << m_previousBlock.parentHash();
|
|
h256Hash excluded = _bc.allKinFrom(m_currentBlock.parentHash(), 6);
|
|
auto p = m_previousBlock.parentHash();
|
|
for (unsigned gen = 0; gen < 6 && p != _bc.genesisHash() && unclesCount < 2; ++gen, p = _bc.details(p).parent)
|
|
{
|
|
auto us = _bc.details(p).children;
|
|
assert(us.size() >= 1); // must be at least 1 child of our grandparent - it's our own parent!
|
|
for (auto const& u: us)
|
|
if (!excluded.count(u)) // ignore any uncles/mainline blocks that we know about.
|
|
{
|
|
uncleBlockHeaders.push_back(_bc.info(u));
|
|
unclesData.appendRaw(_bc.headerData(u));
|
|
++unclesCount;
|
|
if (unclesCount == 2)
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
BytesMap transactionsMap;
|
|
BytesMap receiptsMap;
|
|
|
|
RLPStream txs;
|
|
txs.appendList(m_transactions.size());
|
|
|
|
for (unsigned i = 0; i < m_transactions.size(); ++i)
|
|
{
|
|
RLPStream k;
|
|
k << i;
|
|
|
|
RLPStream receiptrlp;
|
|
m_receipts[i].streamRLP(receiptrlp);
|
|
receiptsMap.insert(std::make_pair(k.out(), receiptrlp.out()));
|
|
|
|
RLPStream txrlp;
|
|
m_transactions[i].streamRLP(txrlp);
|
|
transactionsMap.insert(std::make_pair(k.out(), txrlp.out()));
|
|
|
|
txs.appendRaw(txrlp.out());
|
|
}
|
|
|
|
txs.swapOut(m_currentTxs);
|
|
|
|
RLPStream(unclesCount).appendRaw(unclesData.out(), unclesCount).swapOut(m_currentUncles);
|
|
|
|
// Apply rewards last of all.
|
|
applyRewards(uncleBlockHeaders);
|
|
|
|
// Commit any and all changes to the trie that are in the cache, then update the state root accordingly.
|
|
m_state.commit();
|
|
|
|
clog(StateDetail) << "Post-reward stateRoot:" << m_state.rootHash();
|
|
clog(StateDetail) << m_state;
|
|
clog(StateDetail) << *this;
|
|
|
|
m_currentBlock.setLogBloom(logBloom());
|
|
m_currentBlock.setGasUsed(gasUsed());
|
|
m_currentBlock.setRoots(hash256(transactionsMap), hash256(receiptsMap), sha3(m_currentUncles), m_state.rootHash());
|
|
|
|
m_currentBlock.setParentHash(m_previousBlock.hash());
|
|
m_currentBlock.setExtraData(_extraData);
|
|
if (m_currentBlock.extraData().size() > 32)
|
|
{
|
|
auto ed = m_currentBlock.extraData();
|
|
ed.resize(32);
|
|
m_currentBlock.setExtraData(ed);
|
|
}
|
|
|
|
m_committedToMine = true;
|
|
}
|
|
|
|
void Block::uncommitToMine()
|
|
{
|
|
if (m_committedToMine)
|
|
{
|
|
m_state = m_precommit;
|
|
m_committedToMine = false;
|
|
}
|
|
}
|
|
|
|
bool Block::sealBlock(bytesConstRef _header)
|
|
{
|
|
if (!m_committedToMine)
|
|
return false;
|
|
|
|
if (BlockInfo(_header, CheckNothing, h256{}, HeaderData).hashWithout() != m_currentBlock.hashWithout())
|
|
return false;
|
|
|
|
clog(StateDetail) << "Sealing block!";
|
|
|
|
// Compile block:
|
|
RLPStream ret;
|
|
ret.appendList(3);
|
|
ret.appendRaw(_header);
|
|
ret.appendRaw(m_currentTxs);
|
|
ret.appendRaw(m_currentUncles);
|
|
ret.swapOut(m_currentBytes);
|
|
m_currentBlock = BlockInfo(_header, CheckNothing, h256(), HeaderData);
|
|
cnote << "Mined " << m_currentBlock.hash() << "(parent: " << m_currentBlock.parentHash() << ")";
|
|
// TODO: move into Sealer
|
|
StructuredLogger::minedNewBlock(
|
|
m_currentBlock.hash().abridged(),
|
|
"", // Can't give the nonce here.
|
|
"", //TODO: chain head hash here ??
|
|
m_currentBlock.parentHash().abridged()
|
|
);
|
|
|
|
// Quickly reset the transactions.
|
|
// TODO: Leave this in a better state than this limbo, or at least record that it's in limbo.
|
|
m_transactions.clear();
|
|
m_receipts.clear();
|
|
m_transactionSet.clear();
|
|
m_precommit = m_state;
|
|
|
|
return true;
|
|
}
|
|
|
|
State Block::fromPending(unsigned _i) const
|
|
{
|
|
State ret = m_state;
|
|
_i = min<unsigned>(_i, m_transactions.size());
|
|
if (!_i)
|
|
ret.setRoot(m_previousBlock.stateRoot());
|
|
else
|
|
ret.setRoot(m_receipts[_i - 1].stateRoot());
|
|
return ret;
|
|
}
|
|
|
|
LogBloom Block::logBloom() const
|
|
{
|
|
LogBloom ret;
|
|
for (TransactionReceipt const& i: m_receipts)
|
|
ret |= i.bloom();
|
|
return ret;
|
|
}
|
|
|
|
void Block::cleanup(bool _fullCommit)
|
|
{
|
|
if (_fullCommit)
|
|
{
|
|
// Commit the new trie to disk.
|
|
if (isChannelVisible<StateTrace>()) // Avoid calling toHex if not needed
|
|
clog(StateTrace) << "Committing to disk: stateRoot" << m_currentBlock.stateRoot() << "=" << rootHash() << "=" << toHex(asBytes(db().lookup(rootHash())));
|
|
|
|
try
|
|
{
|
|
EnforceRefs er(db(), true);
|
|
rootHash();
|
|
}
|
|
catch (BadRoot const&)
|
|
{
|
|
clog(StateChat) << "Trie corrupt! :-(";
|
|
throw;
|
|
}
|
|
|
|
m_state.db().commit(); // TODO: State API for this?
|
|
|
|
if (isChannelVisible<StateTrace>()) // Avoid calling toHex if not needed
|
|
clog(StateTrace) << "Committed: stateRoot" << m_currentBlock.stateRoot() << "=" << rootHash() << "=" << toHex(asBytes(db().lookup(rootHash())));
|
|
|
|
m_previousBlock = m_currentBlock;
|
|
m_currentBlock.populateFromParent(m_previousBlock);
|
|
|
|
clog(StateTrace) << "finalising enactment. current -> previous, hash is" << m_previousBlock.hash();
|
|
}
|
|
else
|
|
m_state.db().rollback(); // TODO: State API for this?
|
|
|
|
resetCurrent();
|
|
}
|
|
|
|
string Block::vmTrace(bytesConstRef _block, BlockChain const& _bc, ImportRequirements::value _ir)
|
|
{
|
|
RLP rlp(_block);
|
|
|
|
cleanup(false);
|
|
BlockInfo bi(_block, (_ir & ImportRequirements::ValidSeal) ? CheckEverything : IgnoreSeal);
|
|
m_currentBlock = bi;
|
|
m_currentBlock.verifyInternals(_block);
|
|
m_currentBlock.noteDirty();
|
|
|
|
LastHashes lh = _bc.lastHashes((unsigned)m_previousBlock.number());
|
|
|
|
string ret;
|
|
unsigned i = 0;
|
|
for (auto const& tr: rlp[1])
|
|
{
|
|
StandardTrace st;
|
|
st.setShowMnemonics();
|
|
execute(lh, Transaction(tr.data(), CheckTransaction::Everything), Permanence::Committed, st.onOp());
|
|
ret += (ret.empty() ? "[" : ",") + st.json();
|
|
++i;
|
|
}
|
|
return ret.empty() ? "[]" : (ret + "]");
|
|
}
|
|
|
|
std::ostream& dev::eth::operator<<(std::ostream& _out, Block const& _s)
|
|
{
|
|
(void)_s;
|
|
return _out;
|
|
}
|
|
|