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409 lines
12 KiB
409 lines
12 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file MixClient.cpp
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* @author Arkadiy Paronyan arkadiy@ethdev.com
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* @date 2015
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* Ethereum IDE client.
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*/
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#include "MixClient.h"
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#include <vector>
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#include <utility>
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#include <libdevcore/Exceptions.h>
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#include <libethereum/CanonBlockChain.h>
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#include <libethereum/Transaction.h>
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#include <libethereum/Executive.h>
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#include <libethereum/ExtVM.h>
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#include <libethereum/BlockChain.h>
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#include <libethcore/Params.h>
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#include <libevm/VM.h>
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#include "Exceptions.h"
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using namespace std;
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using namespace dev;
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using namespace dev::eth;
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namespace dev
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{
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namespace mix
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{
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u256 const c_mixGenesisDifficulty = 131072; //TODO: make it lower for Mix somehow
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namespace
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{
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struct MixPow //dummy POW
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{
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typedef int Solution;
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static void assignResult(int, BlockInfo const&) {}
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static bool verify(BlockInfo const&) { return true; }
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};
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}
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bytes MixBlockChain::createGenesisBlock(h256 _stateRoot)
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{
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RLPStream block(3);
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block.appendList(15)
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<< h256() << EmptyListSHA3 << h160() << _stateRoot << EmptyTrie << EmptyTrie
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<< LogBloom() << c_mixGenesisDifficulty << 0 << c_genesisGasLimit << 0 << (unsigned)0
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<< std::string() << h256() << h64(u64(42));
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block.appendRaw(RLPEmptyList);
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block.appendRaw(RLPEmptyList);
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return block.out();
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}
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MixClient::MixClient(std::string const& _dbPath):
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m_dbPath(_dbPath)
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{
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resetState(std::unordered_map<Address, Account>());
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}
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MixClient::~MixClient()
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{
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}
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void MixClient::resetState(std::unordered_map<Address, Account> const& _accounts, Secret const& _miner)
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{
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WriteGuard l(x_state);
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Guard fl(x_filtersWatches);
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m_filters.clear();
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for (auto& i: m_specialFilters)
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i.second.clear();
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m_watches.clear();
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m_stateDB = OverlayDB();
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SecureTrieDB<Address, MemoryDB> accountState(&m_stateDB);
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accountState.init();
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dev::eth::commit(_accounts, static_cast<MemoryDB&>(m_stateDB), accountState);
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h256 stateRoot = accountState.root();
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m_bc.reset();
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m_bc.reset(new MixBlockChain(m_dbPath, stateRoot));
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m_state = eth::State(m_stateDB, BaseState::PreExisting, KeyPair(_miner).address());
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m_state.sync(bc());
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m_startState = m_state;
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WriteGuard lx(x_executions);
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m_executions.clear();
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}
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Transaction MixClient::replaceGas(Transaction const& _t, u256 const& _gas, Secret const& _secret)
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{
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Transaction ret;
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if (_secret)
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{
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if (_t.isCreation())
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ret = Transaction(_t.value(), _t.gasPrice(), _gas, _t.data(), _t.nonce(), _secret);
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else
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ret = Transaction(_t.value(), _t.gasPrice(), _gas, _t.receiveAddress(), _t.data(), _t.nonce(), _secret);
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}
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else
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{
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if (_t.isCreation())
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ret = Transaction(_t.value(), _t.gasPrice(), _gas, _t.data(), _t.nonce());
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else
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ret = Transaction(_t.value(), _t.gasPrice(), _gas, _t.receiveAddress(), _t.data(), _t.nonce());
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ret.forceSender(_t.safeSender());
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}
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return ret;
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}
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void MixClient::executeTransaction(Transaction const& _t, State& _state, bool _call, bool _gasAuto, Secret const& _secret)
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{
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Transaction t = _gasAuto ? replaceGas(_t, m_state.gasLimitRemaining()) : _t;
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// do debugging run first
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LastHashes lastHashes(256);
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lastHashes[0] = bc().numberHash(bc().number());
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for (unsigned i = 1; i < 256; ++i)
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lastHashes[i] = lastHashes[i - 1] ? bc().details(lastHashes[i - 1]).parent : h256();
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State execState = _state;
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execState.addBalance(t.sender(), t.gas() * t.gasPrice()); //give it enough balance for gas estimation
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eth::ExecutionResult er;
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Executive execution(execState, lastHashes, 0);
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execution.setResultRecipient(er);
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execution.initialize(t);
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execution.execute();
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std::vector<MachineState> machineStates;
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std::vector<unsigned> levels;
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std::vector<MachineCode> codes;
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std::map<bytes const*, unsigned> codeIndexes;
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std::vector<bytes> data;
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std::map<bytesConstRef const*, unsigned> dataIndexes;
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bytes const* lastCode = nullptr;
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bytesConstRef const* lastData = nullptr;
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unsigned codeIndex = 0;
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unsigned dataIndex = 0;
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auto onOp = [&](uint64_t steps, Instruction inst, bigint newMemSize, bigint gasCost, bigint gas, void* voidVM, void const* voidExt)
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{
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VM& vm = *static_cast<VM*>(voidVM);
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ExtVM const& ext = *static_cast<ExtVM const*>(voidExt);
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if (lastCode == nullptr || lastCode != &ext.code)
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{
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auto const& iter = codeIndexes.find(&ext.code);
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if (iter != codeIndexes.end())
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codeIndex = iter->second;
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else
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{
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codeIndex = codes.size();
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codes.push_back(MachineCode({ext.myAddress, ext.code}));
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codeIndexes[&ext.code] = codeIndex;
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}
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lastCode = &ext.code;
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}
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if (lastData == nullptr || lastData != &ext.data)
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{
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auto const& iter = dataIndexes.find(&ext.data);
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if (iter != dataIndexes.end())
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dataIndex = iter->second;
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else
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{
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dataIndex = data.size();
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data.push_back(ext.data.toBytes());
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dataIndexes[&ext.data] = dataIndex;
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}
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lastData = &ext.data;
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}
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if (levels.size() < ext.depth)
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levels.push_back(machineStates.size() - 1);
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else
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levels.resize(ext.depth);
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machineStates.push_back(MachineState{
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steps,
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vm.curPC(),
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inst,
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newMemSize,
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static_cast<u256>(gas),
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vm.stack(),
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vm.memory(),
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gasCost,
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ext.state().storage(ext.myAddress),
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std::move(levels),
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codeIndex,
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dataIndex
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});
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};
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execution.go(onOp);
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execution.finalize();
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switch (er.excepted)
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{
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case TransactionException::None:
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break;
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case TransactionException::NotEnoughCash:
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BOOST_THROW_EXCEPTION(Exception() << errinfo_comment("Insufficient balance for contract deployment"));
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case TransactionException::OutOfGasIntrinsic:
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case TransactionException::OutOfGasBase:
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case TransactionException::OutOfGas:
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BOOST_THROW_EXCEPTION(OutOfGas() << errinfo_comment("Not enough gas"));
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case TransactionException::BlockGasLimitReached:
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BOOST_THROW_EXCEPTION(OutOfGas() << errinfo_comment("Block gas limit reached"));
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case TransactionException::BadJumpDestination:
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BOOST_THROW_EXCEPTION(OutOfGas() << errinfo_comment("Solidity exception (bad jump)"));
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case TransactionException::OutOfStack:
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BOOST_THROW_EXCEPTION(Exception() << errinfo_comment("Out of stack"));
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case TransactionException::StackUnderflow:
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BOOST_THROW_EXCEPTION(Exception() << errinfo_comment("Stack underflow"));
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//these should not happen in mix
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case TransactionException::Unknown:
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case TransactionException::BadInstruction:
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case TransactionException::InvalidSignature:
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case TransactionException::InvalidNonce:
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case TransactionException::BadRLP:
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BOOST_THROW_EXCEPTION(Exception() << errinfo_comment("Internal execution error"));
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}
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ExecutionResult d;
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d.inputParameters = t.data();
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d.result = er;
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d.machineStates = machineStates;
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d.executionCode = std::move(codes);
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d.transactionData = std::move(data);
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d.address = _t.receiveAddress();
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d.sender = _t.sender();
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d.value = _t.value();
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d.gasUsed = er.gasUsed + er.gasRefunded + c_callStipend;
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if (_t.isCreation())
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d.contractAddress = right160(sha3(rlpList(_t.sender(), _t.nonce())));
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if (!_call)
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d.transactionIndex = m_state.pending().size();
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d.executonIndex = m_executions.size();
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// execute on a state
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if (!_call)
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{
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t = _gasAuto ? replaceGas(_t, d.gasUsed, _secret) : _t;
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er = _state.execute(lastHashes, t);
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if (t.isCreation() && _state.code(d.contractAddress).empty())
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BOOST_THROW_EXCEPTION(OutOfGas() << errinfo_comment("Not enough gas for contract deployment"));
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d.gasUsed = er.gasUsed + er.gasRefunded + er.gasForDeposit + c_callStipend;
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LocalisedLogEntries logs;
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TransactionReceipt const& tr = _state.receipt(_state.pending().size() - 1);
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//auto trHash = _state.pending().at(_state.pending().size() - 1).sha3();
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LogEntries le = tr.log();
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if (le.size())
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for (unsigned j = 0; j < le.size(); ++j)
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logs.insert(logs.begin(), LocalisedLogEntry(le[j]));
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d.logs = logs;
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}
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WriteGuard l(x_executions);
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m_executions.emplace_back(std::move(d));
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}
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void MixClient::mine()
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{
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WriteGuard l(x_state);
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m_state.commitToMine(bc());
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m_state.completeMine<MixPow>(0);
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bc().import(m_state.blockData(), m_state.db(), ImportRequirements::Default & ~ImportRequirements::ValidNonce);
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m_state.sync(bc());
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m_startState = m_state;
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h256Set changed { dev::eth::PendingChangedFilter, dev::eth::ChainChangedFilter };
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}
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ExecutionResult MixClient::lastExecution() const
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{
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ReadGuard l(x_executions);
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return m_executions.empty() ? ExecutionResult() : m_executions.back();
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}
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ExecutionResult MixClient::execution(unsigned _index) const
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{
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ReadGuard l(x_executions);
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return m_executions.at(_index);
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}
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State MixClient::asOf(h256 const& _block) const
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{
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ReadGuard l(x_state);
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State ret(m_stateDB);
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ret.populateFromChain(bc(), _block);
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return ret;
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}
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void MixClient::submitTransaction(Secret _secret, u256 _value, Address _dest, bytes const& _data, u256 _gas, u256 _gasPrice, bool _gasAuto)
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{
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WriteGuard l(x_state);
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u256 n = m_state.transactionsFrom(toAddress(_secret));
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Transaction t(_value, _gasPrice, _gas, _dest, _data, n, _secret);
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executeTransaction(t, m_state, false, _gasAuto, _secret);
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}
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Address MixClient::submitTransaction(Secret _secret, u256 _endowment, bytes const& _init, u256 _gas, u256 _gasPrice, bool _gasAuto)
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{
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WriteGuard l(x_state);
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u256 n = m_state.transactionsFrom(toAddress(_secret));
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eth::Transaction t(_endowment, _gasPrice, _gas, _init, n, _secret);
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executeTransaction(t, m_state, false, _gasAuto, _secret);
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Address address = right160(sha3(rlpList(t.sender(), t.nonce())));
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return address;
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}
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dev::eth::ExecutionResult MixClient::call(Address const& _from, u256 _value, Address _dest, bytes const& _data, u256 _gas, u256 _gasPrice, BlockNumber _blockNumber, bool _gasAuto, FudgeFactor _ff)
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{
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(void)_blockNumber;
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State temp = asOf(eth::PendingBlock);
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u256 n = temp.transactionsFrom(_from);
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Transaction t(_value, _gasPrice, _gas, _dest, _data, n);
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t.forceSender(_from);
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if (_ff == FudgeFactor::Lenient)
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temp.addBalance(_from, (u256)(t.gasRequired() * t.gasPrice() + t.value()));
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WriteGuard lw(x_state); //TODO: lock is required only for last execution state
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executeTransaction(t, temp, true, _gasAuto);
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return lastExecution().result;
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}
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void MixClient::submitTransaction(Secret _secret, u256 _value, Address _dest, bytes const& _data, u256 _gas, u256 _gasPrice)
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{
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submitTransaction(_secret, _value, _dest, _data, _gas, _gasPrice, false);
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}
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Address MixClient::submitTransaction(Secret _secret, u256 _endowment, bytes const& _init, u256 _gas, u256 _gasPrice)
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{
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return submitTransaction(_secret, _endowment, _init, _gas, _gasPrice, false);
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}
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dev::eth::ExecutionResult MixClient::call(Address const& _from, u256 _value, Address _dest, bytes const& _data, u256 _gas, u256 _gasPrice, BlockNumber _blockNumber, eth::FudgeFactor _ff)
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{
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return call(_from, _value, _dest, _data, _gas, _gasPrice, _blockNumber, false, _ff);
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}
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dev::eth::ExecutionResult MixClient::create(Address const& _from, u256 _value, bytes const& _data, u256 _gas, u256 _gasPrice, BlockNumber _blockNumber, eth::FudgeFactor _ff)
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{
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(void)_blockNumber;
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u256 n;
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State temp;
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{
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ReadGuard lr(x_state);
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temp = asOf(eth::PendingBlock);
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n = temp.transactionsFrom(_from);
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}
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Transaction t(_value, _gasPrice, _gas, _data, n);
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t.forceSender(_from);
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if (_ff == FudgeFactor::Lenient)
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temp.addBalance(_from, (u256)(t.gasRequired() * t.gasPrice() + t.value()));
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WriteGuard lw(x_state); //TODO: lock is required only for last execution state
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executeTransaction(t, temp, true, false);
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return lastExecution().result;
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}
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eth::BlockInfo MixClient::blockInfo() const
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{
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ReadGuard l(x_state);
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return BlockInfo(bc().block());
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}
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void MixClient::setAddress(Address _us)
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{
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WriteGuard l(x_state);
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m_state.setAddress(_us);
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}
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void MixClient::startMining()
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{
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//no-op
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}
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void MixClient::stopMining()
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{
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//no-op
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}
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bool MixClient::isMining() const
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{
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return false;
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}
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uint64_t MixClient::hashrate() const
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{
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return 0;
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}
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eth::MiningProgress MixClient::miningProgress() const
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{
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return eth::MiningProgress();
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}
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}
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}
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