133 lines
3.9 KiB
C++
133 lines
3.9 KiB
C++
// Copyright (c) 2012-2015, The CryptoNote developers, The Bytecoin developers
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//
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// This file is part of Bytecoin.
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//
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// Bytecoin is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser 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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// Bytecoin 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 Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with Bytecoin. If not, see <http://www.gnu.org/licenses/>.
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#include "BinaryOutputStreamSerializer.h"
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#include <cassert>
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#include <stdexcept>
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namespace {
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template<typename T>
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typename std::enable_if<std::is_integral<T>::value && std::is_unsigned<T>::value, void>::type
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writeVarint(std::ostream& s, T i) {
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while (i >= 0x80) {
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s.put((static_cast<char>(i)& 0x7f) | 0x80);
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i >>= 7;
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}
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s.put(static_cast<char>(i));
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if (!s) {
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throw std::runtime_error("Stream write error");
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}
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}
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}
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namespace CryptoNote {
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ISerializer::SerializerType BinaryOutputStreamSerializer::type() const {
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return ISerializer::OUTPUT;
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}
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ISerializer& BinaryOutputStreamSerializer::beginObject(const std::string& name) {
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return *this;
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}
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ISerializer& BinaryOutputStreamSerializer::endObject() {
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return *this;
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}
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ISerializer& BinaryOutputStreamSerializer::beginArray(std::size_t& size, const std::string& name) {
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writeVarint(stream, size);
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return *this;
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}
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ISerializer& BinaryOutputStreamSerializer::endArray() {
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return *this;
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}
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ISerializer& BinaryOutputStreamSerializer::operator()(uint8_t& value, const std::string& name) {
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writeVarint(stream, value);
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return *this;
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}
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ISerializer& BinaryOutputStreamSerializer::operator()(uint32_t& value, const std::string& name) {
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writeVarint(stream, value);
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return *this;
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}
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ISerializer& BinaryOutputStreamSerializer::operator()(int32_t& value, const std::string& name) {
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writeVarint(stream, static_cast<uint32_t>(value));
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return *this;
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}
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ISerializer& BinaryOutputStreamSerializer::operator()(int64_t& value, const std::string& name) {
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writeVarint(stream, static_cast<uint64_t>(value));
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return *this;
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}
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ISerializer& BinaryOutputStreamSerializer::operator()(uint64_t& value, const std::string& name) {
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writeVarint(stream, value);
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return *this;
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}
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ISerializer& BinaryOutputStreamSerializer::operator()(bool& value, const std::string& name) {
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char boolVal = value;
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checkedWrite(&boolVal, 1);
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return *this;
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}
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ISerializer& BinaryOutputStreamSerializer::operator()(std::string& value, const std::string& name) {
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writeVarint(stream, value.size());
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checkedWrite(value.data(), value.size());
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return *this;
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}
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ISerializer& BinaryOutputStreamSerializer::binary(void* value, std::size_t size, const std::string& name) {
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checkedWrite(static_cast<const char*>(value), size);
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return *this;
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}
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ISerializer& BinaryOutputStreamSerializer::binary(std::string& value, const std::string& name) {
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// write as string (with size prefix)
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return (*this)(value, name);
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}
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bool BinaryOutputStreamSerializer::hasObject(const std::string& name) {
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assert(false); //the method is not supported for this type of serialization
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throw std::runtime_error("hasObject method is not supported in BinaryOutputStreamSerializer");
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return false;
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}
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ISerializer& BinaryOutputStreamSerializer::operator()(double& value, const std::string& name) {
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assert(false); //the method is not supported for this type of serialization
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throw std::runtime_error("double serialization is not supported in BinaryOutputStreamSerializer");
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return *this;
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}
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void BinaryOutputStreamSerializer::checkedWrite(const char* buf, size_t size) {
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stream.write(buf, size);
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if (!stream) {
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throw std::runtime_error("Stream write error");
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}
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}
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}
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