u256 State::enactOn(bytesConstRef _block, BlockInfo const& _bi, BlockChain const& _bc)
{
// Check family:
BlockInfo biParent(_bc.block(_bi.parentHash));
_bi.verifyParent(biParent);
BlockInfo biGrandParent;
if (biParent.number)
biGrandParent.populate(_bc.block(biParent.parentHash));
sync(_bc, _bi.parentHash);
resetCurrent();
m_previousBlock = biParent;
return enact(_block, _bc);
}
u256 State::enact(bytesConstRef _block, BlockChain const& _bc, bool _checkNonce)
{
// m_currentBlock is assumed to be prepopulated and reset.
#if !ETH_RELEASE
BlockInfo bi(_block, _checkNonce);
assert(m_previousBlock.hash == bi.parentHash);
assert(m_currentBlock.parentHash == bi.parentHash);
assert(rootHash() == m_previousBlock.stateRoot);
#endif
if (m_currentBlock.parentHash != m_previousBlock.hash)
BOOST_THROW_EXCEPTION(InvalidParentHash());
// Populate m_currentBlock with the correct values.
m_currentBlock.populate(_block, _checkNonce);
m_currentBlock.verifyInternals(_block);
// cnote << "playback begins:" << m_state.root();
// cnote << m_state;
MemoryDB tm;
GenericTrieDB<MemoryDB> transactionsTrie(&tm);
transactionsTrie.init();
MemoryDB rm;
GenericTrieDB<MemoryDB> receiptsTrie(&rm);
receiptsTrie.init();
LastHashes lh = getLastHashes(_bc, (unsigned)m_previousBlock.number);
// All ok with the block generally. Play back the transactions now...
unsigned i = 0;
for (auto const& tr: RLP(_block)[1])
{
RLPStream k;
k << i;
transactionsTrie.insert(&k.out(), tr.data());
execute(lh, tr.data());
RLPStream receiptrlp;
m_receipts.back().streamRLP(receiptrlp);
receiptsTrie.insert(&k.out(), &receiptrlp.out());
++i;
}
if (transactionsTrie.root() != m_currentBlock.transactionsRoot)
{
cwarn << "Bad transactions state root!";
BOOST_THROW_EXCEPTION(InvalidTransactionsStateRoot());
}
if (receiptsTrie.root() != m_currentBlock.receiptsRoot)
{
cwarn << "Bad receipts state root.";
cwarn << "Block:" << toHex(_block);
cwarn << "Block RLP:" << RLP(_block);
cwarn << "Calculated: " << receiptsTrie.root();
for (unsigned j = 0; j < i; ++j)
{
RLPStream k;
k << j;
auto b = asBytes(receiptsTrie.at(&k.out()));
cwarn << j << ": ";
cwarn << "RLP: " << RLP(b);
cwarn << "Hex: " << toHex(b);
cwarn << TransactionReceipt(&b);
}
cwarn << "Recorded: " << m_currentBlock.receiptsRoot;
auto rs = _bc.receipts(m_currentBlock.hash);
for (unsigned j = 0; j < rs.receipts.size(); ++j)
{
auto b = rs.receipts[j].rlp();
cwarn << j << ": ";
cwarn << "RLP: " << RLP(b);
cwarn << "Hex: " << toHex(b);
cwarn << rs.receipts[j];
}
BOOST_THROW_EXCEPTION(InvalidReceiptsStateRoot());
}
if (m_currentBlock.logBloom != logBloom())
{
cwarn << "Bad log bloom!";
BOOST_THROW_EXCEPTION(InvalidLogBloom());
}
// Initialise total difficulty calculation.
u256 tdIncrease = m_currentBlock.difficulty;
// Check uncles & apply their rewards to state.
set<h256> nonces = { m_currentBlock.nonce };
Addresses rewarded;
set<h256> knownUncles = _bc.allUnclesFrom(m_currentBlock.parentHash);
for (auto const& i: RLP(_block)[2])
{
if (knownUncles.count(sha3(i.data())))
BOOST_THROW_EXCEPTION(UncleInChain(knownUncles, sha3(i.data()) ));
BlockInfo uncle = BlockInfo::fromHeader(i.data());
if (nonces.count(uncle.nonce))
BOOST_THROW_EXCEPTION(DuplicateUncleNonce());
BlockInfo uncleParent(_bc.block(uncle.parentHash));
if ((bigint)uncleParent.number < (bigint)m_currentBlock.number - 7)
BOOST_THROW_EXCEPTION(UncleTooOld());
uncle.verifyParent(uncleParent);
nonces.insert(uncle.nonce);
tdIncrease += uncle.difficulty;
rewarded.push_back(uncle.coinbaseAddress);
}
applyRewards(rewarded);
// Commit all cached state changes to the state trie.
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())
{
cwarn << "Bad state root!";
cnote << "Given to be:" << m_currentBlock.stateRoot;
cnote << TrieDB<Address, OverlayDB>(&m_db, m_currentBlock.stateRoot);
cnote << "Calculated to be:" << rootHash();
cnote << m_state;
cnote << *this;
// Rollback the trie.
m_db.rollback();
BOOST_THROW_EXCEPTION(InvalidStateRoot());
}
if (m_currentBlock.gasUsed != gasUsed())
{
// Rollback the trie.
m_db.rollback();
BOOST_THROW_EXCEPTION(InvalidGasUsed() << RequirementError(bigint(gasUsed()), bigint(m_currentBlock.gasUsed)));
}
return tdIncrease;
}
u256 State::playback(bytesConstRef _block, BlockInfo const& _grandParent, bool _fullCommit)
{
if (m_currentBlock.parentHash != m_previousBlock.hash)
throw InvalidParentHash();
// cnote << "playback begins:" << m_state.root();
// cnote << m_state;
// All ok with the block generally. Play back the transactions now...
for (auto const& i: RLP(_block)[1])
execute(i.data());
// Initialise total difficulty calculation.
u256 tdIncrease = m_currentBlock.difficulty;
// Check uncles & apply their rewards to state.
// TODO: Check for uniqueness of uncles.
Addresses rewarded;
for (auto const& i: RLP(_block)[2])
{
BlockInfo uncle = BlockInfo::fromHeader(i.data());
if (m_previousBlock.parentHash != uncle.parentHash)
throw InvalidUncle();
if (_grandParent)
uncle.verifyParent(_grandParent);
tdIncrease += uncle.difficulty;
rewarded.push_back(uncle.coinbaseAddress);
}
applyRewards(rewarded);
// Commit all cached state changes to the state trie.
commit();
// Hash the state trie and check against the state_root hash in m_currentBlock.
if (m_currentBlock.stateRoot != rootHash())
{
cwarn << "Bad state root!";
cnote << "Given to be:" << m_currentBlock.stateRoot;
cnote << TrieDB<Address, Overlay>(&m_db, m_currentBlock.stateRoot);
cnote << "Calculated to be:" << rootHash();
cnote << m_state;
cnote << *this;
// Rollback the trie.
m_db.rollback();
throw InvalidStateRoot();
}
if (_fullCommit)
{
// Commit the new trie to disk.
m_db.commit();
m_previousBlock = m_currentBlock;
resetCurrent();
}
else
{
m_db.rollback();
resetCurrent();
}
return tdIncrease;
}
