mirror of https://github.com/opencardev/aasdk
96 lines
2.4 KiB
C++
96 lines
2.4 KiB
C++
/*
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* This file is part of aasdk library project.
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* Copyright (C) 2018 f1x.studio (Michal Szwaj)
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*
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* aasdk 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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* aasdk 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 aasdk. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <boost/endian/conversion.hpp>
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#include <aasdk/Messenger/FrameSize.hpp>
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namespace aasdk
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{
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namespace messenger
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{
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FrameSize::FrameSize(size_t frameSize, size_t totalSize)
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: frameSizeType_(FrameSizeType::EXTENDED)
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, frameSize_(frameSize)
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, totalSize_(totalSize)
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{
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}
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FrameSize::FrameSize(size_t frameSize)
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: frameSizeType_(FrameSizeType::SHORT)
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, frameSize_(frameSize)
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, totalSize_(0)
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{
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}
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FrameSize::FrameSize(const common::DataConstBuffer& buffer)
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{
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if(buffer.size >= 2)
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{
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frameSizeType_ = FrameSizeType::SHORT;
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frameSize_ = boost::endian::big_to_native(reinterpret_cast<const uint16_t&>(buffer.cdata[0]));
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totalSize_ = frameSize_;
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}
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if(buffer.size >= 6)
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{
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frameSizeType_ = FrameSizeType::EXTENDED;
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totalSize_ = boost::endian::big_to_native(reinterpret_cast<const uint32_t&>(buffer.cdata[2]));
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}
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}
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common::Data FrameSize::getData() const
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{
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common::Data data;
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uint16_t frameSizeBig = boost::endian::native_to_big(static_cast<uint16_t>(frameSize_));
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const common::DataConstBuffer frameSizeBigBuffer(&frameSizeBig, sizeof(frameSizeBig));
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common::copy(data, frameSizeBigBuffer);
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if(frameSizeType_ == FrameSizeType::EXTENDED)
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{
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uint32_t totalSizeBig = boost::endian::native_to_big(static_cast<uint32_t>(totalSize_));
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const common::DataConstBuffer totalSizeBigBuffer(&totalSizeBig, sizeof(totalSizeBig));
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common::copy(data, totalSizeBigBuffer);
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}
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return data;
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}
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size_t FrameSize::getFrameSize() const
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{
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return frameSize_;
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}
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size_t FrameSize::getTotalSize() const
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{
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return totalSize_;
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}
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size_t FrameSize::getSizeOf(FrameSizeType type)
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{
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return type == FrameSizeType::EXTENDED ? 6 : 2;
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}
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}
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}
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