EVMSchedule.h

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/*
        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/>.
*/
#pragma once

#include <libevmcore/Instruction.h>
#include <libdevcore/Common.h>

namespace dev
{
namespace eth
{

struct EVMSchedule
{
        EVMSchedule(): tierStepGas(std::array<unsigned, 8>{{0, 2, 3, 5, 8, 10, 20, 0}}) {}
        EVMSchedule(bool _efcd, bool _hdc, unsigned const& _txCreateGas): exceptionalFailedCodeDeposit(_efcd), haveDelegateCall(_hdc), tierStepGas(std::array<unsigned, 8>{{0, 2, 3, 5, 8, 10, 20, 0}}), txCreateGas(_txCreateGas) {}
        bool exceptionalFailedCodeDeposit = true;
        bool haveDelegateCall = true;
        bool eip150Mode = false;
        bool eip158Mode = false;
        std::array<unsigned, 8> tierStepGas;
        unsigned expGas = 10;
        unsigned expByteGas = 10;
        unsigned sha3Gas = 30;
        unsigned sha3WordGas = 6;
        unsigned sloadGas = 50;
        unsigned sstoreSetGas = 20000;
        unsigned sstoreResetGas = 5000;
        unsigned sstoreRefundGas = 15000;
        unsigned jumpdestGas = 1;
        unsigned logGas = 375;
        unsigned logDataGas = 8;
        unsigned logTopicGas = 375;
        unsigned createGas = 32000;
        unsigned callGas = 40;
        unsigned callStipend = 2300;
        unsigned callValueTransferGas = 9000;
        unsigned callNewAccountGas = 25000;
        unsigned suicideRefundGas = 24000;
        unsigned memoryGas = 3;
        unsigned quadCoeffDiv = 512;
        unsigned createDataGas = 200;
        unsigned txGas = 21000;
        unsigned txCreateGas = 53000;
        unsigned txDataZeroGas = 4;
        unsigned txDataNonZeroGas = 68;
        unsigned copyGas = 3;

        unsigned extcodesizeGas = 20;
        unsigned extcodecopyGas = 20;
        unsigned balanceGas = 20;
        unsigned suicideGas = 0;
        unsigned maxCodeSize = unsigned(-1);

        bool staticCallDepthLimit() const { return !eip150Mode; }
        bool suicideChargesNewAccountGas() const { return eip150Mode; }
        bool emptinessIsNonexistence() const { return eip158Mode; }
        bool zeroValueTransferChargesNewAccountGas() const { return !eip158Mode; }
};

static const EVMSchedule DefaultSchedule = EVMSchedule();
static const EVMSchedule FrontierSchedule = EVMSchedule(false, false, 21000);
static const EVMSchedule HomesteadSchedule = EVMSchedule(true, true, 53000);

static const EVMSchedule EIP150Schedule = []
{
        EVMSchedule schedule = HomesteadSchedule;
        schedule.eip150Mode = true;
        schedule.extcodesizeGas = 700;
        schedule.extcodecopyGas = 700;
        schedule.balanceGas = 400;
        schedule.sloadGas = 200;
        schedule.callGas = 700;
        schedule.suicideGas = 5000;
        schedule.maxCodeSize = 0x6000;
        return schedule;
}();

static const EVMSchedule EIP158Schedule = []
{
        EVMSchedule schedule = EIP150Schedule;
        schedule.expByteGas = 50;
        schedule.eip158Mode = true;
        return schedule;
}();

static const EVMSchedule MetropolisSchedule = []
{
        EVMSchedule schedule = EIP158Schedule;
        return schedule;
}();

}
}