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123 lines
4.3 KiB
123 lines
4.3 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 Common.h
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*
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* Very common stuff (i.e. that every other header needs except vector_ref.h).
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*/
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#pragma once
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// way to many unsigned to size_t warnings in 32 bit build
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#ifdef _M_IX86
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#pragma warning(disable:4244)
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#endif
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#include <map>
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#include <unordered_map>
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#include <vector>
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#include <set>
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#include <unordered_set>
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#include <functional>
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#include <string>
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#include <chrono>
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#include <boost/functional/hash.hpp>
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#include <boost/multiprecision/cpp_int.hpp>
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#include "vector_ref.h"
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using byte = uint8_t;
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namespace dev
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{
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// Binary data types.
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using bytes = std::vector<byte>;
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using bytesRef = vector_ref<byte>;
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using bytesConstRef = vector_ref<byte const>;
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template <class T>
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class secure_vector
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{
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public:
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secure_vector() {}
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secure_vector(secure_vector<T> const& _c) = default;
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explicit secure_vector(unsigned _size): m_data(_size) {}
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explicit secure_vector(unsigned _size, T _item): m_data(_size, _item) {}
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explicit secure_vector(std::vector<T> const& _c): m_data(_c) {}
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explicit secure_vector(vector_ref<T> _c): m_data(_c.data(), _c.data() + _c.size()) {}
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explicit secure_vector(vector_ref<const T> _c): m_data(_c.data(), _c.data() + _c.size()) {}
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~secure_vector() { ref().cleanse(); }
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secure_vector<T>& operator=(secure_vector<T> const& _c)
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{
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if (&_c == this)
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return *this;
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ref().cleanse();
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m_data = _c.m_data;
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return *this;
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}
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std::vector<T>& writable() { clear(); return m_data; }
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std::vector<T> const& makeInsecure() const { return m_data; }
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void clear() { ref().cleanse(); }
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vector_ref<T> ref() { return vector_ref<T>(&m_data); }
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vector_ref<T const> ref() const { return vector_ref<T const>(&m_data); }
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size_t size() const { return m_data.size(); }
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bool empty() const { return m_data.empty(); }
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void swap(secure_vector<T>& io_other) { m_data.swap(io_other.m_data); }
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private:
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std::vector<T> m_data;
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};
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using bytesSec = secure_vector<byte>;
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// Numeric types.
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using bigint = boost::multiprecision::number<boost::multiprecision::cpp_int_backend<>>;
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using u64 = boost::multiprecision::number<boost::multiprecision::cpp_int_backend<64, 64, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>>;
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using u128 = boost::multiprecision::number<boost::multiprecision::cpp_int_backend<128, 128, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>>;
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using u256 = boost::multiprecision::number<boost::multiprecision::cpp_int_backend<256, 256, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>>;
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using s256 = boost::multiprecision::number<boost::multiprecision::cpp_int_backend<256, 256, boost::multiprecision::signed_magnitude, boost::multiprecision::unchecked, void>>;
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using u160 = boost::multiprecision::number<boost::multiprecision::cpp_int_backend<160, 160, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>>;
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using s160 = boost::multiprecision::number<boost::multiprecision::cpp_int_backend<160, 160, boost::multiprecision::signed_magnitude, boost::multiprecision::unchecked, void>>;
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using u512 = boost::multiprecision::number<boost::multiprecision::cpp_int_backend<512, 512, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>>;
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using u256s = std::vector<u256>;
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using u160s = std::vector<u160>;
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using u256Set = std::set<u256>;
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using u160Set = std::set<u160>;
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// String types.
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using strings = std::vector<std::string>;
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// Null/Invalid values for convenience.
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static const u256 Invalid256 = ~(u256)0;
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/// Converts arbitrary value to string representation using std::stringstream.
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template <class _T>
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std::string toString(_T const& _t)
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{
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std::ostringstream o;
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o << _t;
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return o.str();
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}
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}
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