Gav Wood
10 years ago
15 changed files with 202 additions and 71 deletions
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/*
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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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|
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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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#pragma once |
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#include <memory> |
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#include <libdevcore/Exceptions.h> |
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#include "ExtVMFace.h" |
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namespace dev |
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{ |
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namespace eth |
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{ |
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struct VMException: virtual Exception {}; |
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struct StepsDone: virtual VMException {}; |
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struct BreakPointHit: virtual VMException {}; |
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struct BadInstruction: virtual VMException {}; |
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struct BadJumpDestination: virtual VMException {}; |
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struct OutOfGas: virtual VMException {}; |
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struct StackTooSmall: virtual VMException {}; |
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/// EVM Virtual Machine interface
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class VMFace |
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{ |
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public: |
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explicit VMFace(u256 _gas): m_gas(_gas) {} |
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virtual ~VMFace() = default; |
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VMFace(VMFace const&) = delete; |
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void operator=(VMFace const&) = delete; |
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virtual void reset(u256 _gas = 0) noexcept { m_gas = _gas; } |
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u256 gas() const noexcept { return m_gas; } |
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virtual bytesConstRef go(ExtVMFace& _ext, OnOpFunc const& _onOp = {}, uint64_t _steps = (uint64_t)-1) = 0; |
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protected: |
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u256 m_gas = 0; |
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}; |
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} |
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} |
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@ -0,0 +1,42 @@ |
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/*
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This file is part of cpp-ethereum. |
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|
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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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|
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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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|
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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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#include "VMFactory.h" |
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#include "VM.h" |
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namespace dev |
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{ |
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namespace eth |
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{ |
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namespace |
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{ |
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VMKind g_kind = VMKind::Interpreter; |
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} |
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void VMFactory::setKind(VMKind _kind) |
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{ |
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g_kind = _kind; |
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} |
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std::unique_ptr<VMFace> VMFactory::create(u256 _gas) |
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{ |
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asserts(g_kind == VMKind::Interpreter && "Only interpreter supported for now"); |
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return std::unique_ptr<VMFace>(new VM(_gas)); |
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} |
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} |
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} |
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@ -0,0 +1,42 @@ |
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/*
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This file is part of cpp-ethereum. |
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|
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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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|
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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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#pragma once |
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#include "VMFace.h" |
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namespace dev |
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{ |
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namespace eth |
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{ |
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enum class VMKind: bool |
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{ |
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Interpreter, |
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JIT |
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}; |
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class VMFactory |
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{ |
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public: |
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VMFactory() = delete; |
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static std::unique_ptr<VMFace> create(u256 _gas); |
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static void setKind(VMKind _kind); |
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}; |
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} |
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} |
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