forked from blue/lmdbal
86 lines
2.0 KiB
C++
86 lines
2.0 KiB
C++
// Squawk messenger.
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// Copyright (C) 2019 Yury Gubich <blue@macaw.me>
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//
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// This program 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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// This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef LMDBDATABASE_SERIALIZER_HPP
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#define LMDBDATABASE_SERIALIZER_HPP
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#include "serializer.h"
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template<class T>
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LMDBDataBase::Serializer<T>::Serializer() :
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bytes(),
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buffer(&bytes),
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stream(&buffer)
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{
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buffer.open(QIODevice::ReadWrite);
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}
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template<class T>
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LMDBDataBase::Serializer<T>::Serializer(const T& value) :
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bytes(),
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buffer(&bytes),
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stream(&buffer)
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{
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buffer.open(QIODevice::ReadWrite);
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_setValue(value);
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}
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template<class T>
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LMDBDataBase::Serializer<T>::~Serializer() {
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buffer.close();
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}
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template<class T>
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MDB_val LMDBDataBase::Serializer<T>::setData(const T& value) {
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clear();
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_setData(value);
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return getData();
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}
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template<class T>
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T LMDBDataBase::Serializer<T>::deserialize(const MDB_val& value) {
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clear();
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bytes.setRawData((char*)value.mv_data, value.mv_size);
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T result;
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stream >> result;
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return result;
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}
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template<class T>
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void LMDBDataBase::Serializer<T>::_setData(const T& value) {
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stream << value;
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}
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template<class T>
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void LMDBDataBase::Serializer<T>::clear() {
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if (buffer.pos() > 0) {
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buffer.seek(0);
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}
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}
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template<class T>
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MDB_val LMDBDataBase::Serializer<T>::getData() {
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MDB_val val;
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val.mv_size = buffer.pos();
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val.mv_data = (char*)bytes.data();
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return val;
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}
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#endif //LMDBDATABASE_SERIALIZER_HPP
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