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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 "VMFace.h"
namespace dev
{
namespace eth
{
/// Smart VM proxy.
///
/// This class is a strategy pattern implementation for VM. For every EVM code
/// execution request it tries to select the best VM implementation (Interpreter or JIT)
/// by analyzing available information like: code size, hit count, JIT status, etc.
class SmartVM: public VMFace
{
public:
virtual bytesConstRef execImpl(u256& io_gas, ExtVMFace& _ext, OnOpFunc const& _onOp) override final;
private:
std::unique_ptr<VMFace> m_selectedVM;
};
}
}