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452 lines
11 KiB
452 lines
11 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 state.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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* State test functions.
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*/
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#include <fstream>
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#include "../json_spirit/json_spirit_reader_template.h"
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#include "../json_spirit/json_spirit_writer_template.h"
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#include <ExtVMFace.h>
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#include <Transaction.h>
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#include <VM.h>
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#include <Instruction.h>
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using namespace std;
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using namespace json_spirit;
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using namespace eth;
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namespace eth
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{
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class FakeExtVM: public ExtVMFace
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{
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public:
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FakeExtVM()
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{}
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FakeExtVM(FeeStructure const& _fees, BlockInfo const& _previousBlock, BlockInfo const& _currentBlock, uint _currentNumber):
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ExtVMFace(Address(), Address(), 0, u256s(), _fees, _previousBlock, _currentBlock, _currentNumber)
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{}
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u256 store(u256 _n)
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{
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#ifdef __clang__
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tuple<u256, u256, u256, map<u256, u256> > & address = addresses[myAddress];
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map<u256, u256> & third = get<3>(address);
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auto sFinder = third.find(_n);
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if (sFinder != third.end())
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return sFinder->second;
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else
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return 0;
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#else
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return get<3>(addresses[myAddress])[_n];
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#endif
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}
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void setStore(u256 _n, u256 _v)
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{
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#ifdef __clang__
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tuple<u256, u256, u256, map<u256, u256> > & address = addresses[myAddress];
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map<u256, u256> & third = get<3>(address);
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auto sFinder = third.find(_n);
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if (sFinder != third.end())
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sFinder->second = _v;
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else
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third.insert(std::make_pair(_n, _v));
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#else
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get<3>(addresses[myAddress])[_n] = _v;
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#endif
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}
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void mktx(Transaction& _t)
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{
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if (get<0>(addresses[myAddress]) >= _t.value)
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{
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get<0>(addresses[myAddress]) -= _t.value;
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get<1>(addresses[myAddress])++;
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// get<0>(addresses[_t.receiveAddress]) += _t.value;
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txs.push_back(_t);
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}
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}
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u256 balance(Address _a) { return get<0>(addresses[_a]); }
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void payFee(bigint _fee) { get<0>(addresses[myAddress]) = (u256)(get<0>(addresses[myAddress]) - _fee); }
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u256 txCount(Address _a) { return get<1>(addresses[_a]); }
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u256 extro(Address _a, u256 _pos)
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{
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#ifdef __clang__
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tuple<u256, u256, u256, map<u256, u256> > & address = addresses[_a];
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map<u256, u256> & third = get<3>(address);
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auto sFinder = third.find(_pos);
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if (sFinder != third.end())
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return sFinder->second;
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else
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return 0;
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#else
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return get<3>(addresses[_a])[_pos];
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#endif
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}
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u256 extroPrice(Address _a) { return get<2>(addresses[_a]); }
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void suicide(Address _a)
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{
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for (auto const& i: get<3>(addresses[myAddress]))
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if (i.second)
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get<0>(addresses[_a]) += fees.m_memoryFee;
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get<0>(addresses[_a]) += get<0>(addresses[myAddress]);
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addresses.erase(myAddress);
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}
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void setTransaction(Address _txSender, u256 _txValue, u256s const& _txData)
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{
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txSender = _txSender;
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txValue = _txValue;
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txData = _txData;
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}
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void setContract(Address _myAddress, u256 _myBalance, u256 _myNonce, u256s _myData)
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{
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myAddress = _myAddress;
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set(myAddress, _myBalance, _myNonce, _myData);
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}
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void set(Address _a, u256 _myBalance, u256 _myNonce, u256s _myData)
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{
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get<0>(addresses[_a]) = _myBalance;
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get<1>(addresses[_a]) = _myNonce;
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get<2>(addresses[_a]) = 0;
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for (unsigned i = 0; i < _myData.size(); ++i)
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#ifdef __clang__
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{
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tuple<u256, u256, u256, map<u256, u256> > & address = addresses[_a];
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map<u256, u256> & third = get<3>(address);
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auto sFinder = third.find(i);
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if (sFinder != third.end())
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sFinder->second = _myData[i];
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else
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third.insert(std::make_pair(i, _myData[i]));
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}
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#else
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get<3>(addresses[_a])[i] = _myData[i];
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#endif
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}
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mObject exportEnv()
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{
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mObject ret;
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ret["previousHash"] = toString(previousBlock.hash);
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ret["previousNonce"] = toString(previousBlock.nonce);
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push(ret, "currentDifficulty", currentBlock.difficulty);
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push(ret, "currentTimestamp", currentBlock.timestamp);
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ret["currentCoinbase"] = toString(currentBlock.coinbaseAddress);
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push(ret, "feeMultiplier", fees.multiplier());
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return ret;
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}
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void importEnv(mObject& _o)
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{
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previousBlock.hash = h256(_o["previousHash"].get_str());
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previousBlock.nonce = h256(_o["previousNonce"].get_str());
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currentBlock.difficulty = toInt(_o["currentDifficulty"]);
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currentBlock.timestamp = toInt(_o["currentTimestamp"]);
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currentBlock.coinbaseAddress = Address(_o["currentCoinbase"].get_str());
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fees.setMultiplier(toInt(_o["feeMultiplier"]));
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}
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static u256 toInt(mValue const& _v)
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{
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switch (_v.type())
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{
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case str_type: return u256(_v.get_str());
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case int_type: return (u256)_v.get_uint64();
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case bool_type: return (u256)(uint64_t)_v.get_bool();
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case real_type: return (u256)(uint64_t)_v.get_real();
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default: cwarn << "Bad type for scalar: " << _v.type();
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}
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return 0;
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}
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static void push(mObject& o, string const& _n, u256 _v)
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{
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if (_v < (u256)1 << 64)
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o[_n] = (uint64_t)_v;
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else
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o[_n] = toString(_v);
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}
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static void push(mArray& a, u256 _v)
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{
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if (_v < (u256)1 << 64)
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a.push_back((uint64_t)_v);
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else
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a.push_back(toString(_v));
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}
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mObject exportState()
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{
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mObject ret;
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for (auto const& a: addresses)
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{
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mObject o;
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push(o, "balance", get<0>(a.second));
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push(o, "nonce", get<1>(a.second));
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push(o, "extroPrice", get<2>(a.second));
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mObject store;
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string curKey;
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u256 li = 0;
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mArray curVal;
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for (auto const& s: get<3>(a.second))
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{
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if (!li || s.first > li + 8)
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{
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if (li)
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store[curKey] = curVal;
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li = s.first;
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curKey = toString(li);
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curVal = mArray();
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}
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else
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for (; li != s.first; ++li)
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curVal.push_back(0);
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push(curVal, s.second);
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++li;
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}
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if (li)
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{
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store[curKey] = curVal;
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o["store"] = store;
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}
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ret[toString(a.first)] = o;
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}
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return ret;
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}
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void importState(mObject& _o)
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{
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for (auto const& i: _o)
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{
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mObject o = i.second.get_obj();
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auto& a = addresses[Address(i.first)];
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get<0>(a) = toInt(o["balance"]);
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get<1>(a) = toInt(o["nonce"]);
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get<2>(a) = toInt(o["extroPrice"]);
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if (o.count("store"))
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for (auto const& j: o["store"].get_obj())
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{
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u256 adr(j.first);
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for (auto const& k: j.second.get_array())
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#ifdef __clang__
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{
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map<u256, u256> & third = get<3>(a);
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auto sFinder = third.find(adr);
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if (sFinder != third.end())
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sFinder->second = toInt(k);
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else
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third.insert(std::make_pair(adr, toInt(k)));
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adr++;
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}
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#else
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get<3>(a)[adr++] = toInt(k);
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#endif
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}
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if (o.count("code"))
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{
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u256s d = compileLisp(o["code"].get_str());
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for (unsigned i = 0; i < d.size(); ++i)
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#ifdef __clang__
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{
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map<u256, u256> & third = get<3>(a);
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auto sFinder = third.find(i);
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if (sFinder != third.end())
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sFinder->second = d[i];
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else
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third.insert(std::make_pair(i, d[i]));
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}
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#else
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get<3>(a)[(u256)i] = d[i];
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#endif
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}
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}
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}
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mObject exportExec()
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{
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mObject ret;
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ret["address"] = toString(myAddress);
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ret["sender"] = toString(txSender);
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push(ret, "value", txValue);
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mArray d;
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for (auto const& i: txData)
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push(d, i);
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ret["data"] = d;
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return ret;
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}
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void importExec(mObject& _o)
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{
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myAddress = Address(_o["address"].get_str());
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txSender = Address(_o["sender"].get_str());
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txValue = toInt(_o["value"]);
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for (auto const& j: _o["data"].get_array())
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txData.push_back(toInt(j));
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}
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mArray exportTxs()
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{
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mArray ret;
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for (Transaction const& tx: txs)
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{
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mObject o;
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o["destination"] = toString(tx.receiveAddress);
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push(o, "value", tx.value);
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mArray d;
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for (auto const& i: tx.data)
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push(d, i);
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o["data"] = d;
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ret.push_back(o);
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}
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return ret;
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}
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void importTxs(mArray& _txs)
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{
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for (mValue& v: _txs)
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{
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auto tx = v.get_obj();
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Transaction t;
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t.receiveAddress = Address(tx["destination"].get_str());
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t.value = toInt(tx["value"]);
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for (auto const& j: tx["data"].get_array())
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t.data.push_back(toInt(j));
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txs.push_back(t);
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}
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}
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void reset(u256 _myBalance, u256 _myNonce, u256s _myData)
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{
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txs.clear();
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addresses.clear();
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set(myAddress, _myBalance, _myNonce, _myData);
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}
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map<Address, tuple<u256, u256, u256, map<u256, u256>>> addresses;
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Transactions txs;
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};
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#define CREATE_TESTS 0
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template <> class UnitTest<1>
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{
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public:
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int operator()()
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{
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json_spirit::mValue v;
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#if CREATE_TESTS
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string s = asString(contents("../../cpp-ethereum/test/vmtests.json"));
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json_spirit::read_string(s, v);
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bool passed = doTests(v, true);
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cout << json_spirit::write_string(v, true) << endl;
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#else
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string s = asString(contents("../../tests/vmtests.json"));
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json_spirit::read_string(s, v);
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bool passed = doTests(v, false);
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#endif
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return passed ? 0 : 1;
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}
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bool doTests(json_spirit::mValue& v, bool _fillin)
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{
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bool passed = true;
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for (auto& i: v.get_obj())
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{
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cnote << i.first;
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mObject& o = i.second.get_obj();
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VM vm;
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FakeExtVM fev;
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fev.importEnv(o["env"].get_obj());
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fev.importState(o["pre"].get_obj());
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if (_fillin)
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o["pre"] = mValue(fev.exportState());
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for (auto i: o["exec"].get_array())
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{
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fev.importExec(i.get_obj());
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vm.go(fev);
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}
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if (_fillin)
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{
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o["post"] = mValue(fev.exportState());
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o["txs"] = fev.exportTxs();
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}
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else
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{
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FakeExtVM test;
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test.importState(o["post"].get_obj());
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test.importTxs(o["txs"].get_array());
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if (test.addresses != fev.addresses)
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{
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cwarn << "Test failed: state different.";
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passed = false;
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}
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if (test.txs != fev.txs)
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{
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cwarn << "Test failed: tx list different:";
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cwarn << test.txs;
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cwarn << fev.txs;
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passed = false;
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}
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}
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}
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return passed;
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}
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string makeTestCase()
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{
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json_spirit::mObject o;
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VM vm;
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BlockInfo pb;
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pb.hash = sha3("previousHash");
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pb.nonce = sha3("previousNonce");
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BlockInfo cb = pb;
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cb.difficulty = 256;
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cb.timestamp = 1;
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cb.coinbaseAddress = toAddress(sha3("coinbase"));
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FeeStructure fees;
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fees.setMultiplier(1);
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FakeExtVM fev(fees, pb, cb, 0);
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fev.setContract(toAddress(sha3("contract")), ether, 0, compileLisp("(suicide (txsender))"));
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o["env"] = fev.exportEnv();
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o["pre"] = fev.exportState();
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fev.setTransaction(toAddress(sha3("sender")), ether, u256s());
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mArray execs;
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execs.push_back(fev.exportExec());
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o["exec"] = execs;
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vm.go(fev);
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o["post"] = fev.exportState();
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o["txs"] = fev.exportTxs();
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return json_spirit::write_string(json_spirit::mValue(o), true);
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}
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};
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}
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int vmTest()
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{
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cnote << "Testing VM...";
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return UnitTest<1>()();
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}
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