FrameSize_8cpp

---

title: src/Messenger/FrameSize.cpp

---

src/Messenger/FrameSize.cpp

Namespaces

Name
aasdk
aasdk::messenger

Source code

// This file is part of aasdk library project.
// Copyright (C) 2018 f1x.studio (Michal Szwaj)
// Copyright (C) 2024 CubeOne (Simon Dean - simon.dean@cubeone.co.uk)
// Copyright (C) 2026 OpenCarDev (Matthew Hilton - matthilton2005@gmail.com)
//
// aasdk is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// aasdk is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with aasdk. If not, see <http://www.gnu.org/licenses/>.

#include <boost/endian/conversion.hpp>
#include <aasdk/Messenger/FrameSize.hpp>


namespace aasdk {
  namespace messenger {

    FrameSize::FrameSize(size_t frameSize, size_t totalSize)
        : frameSizeType_(FrameSizeType::EXTENDED), frameSize_(frameSize), totalSize_(totalSize) {

    }

    FrameSize::FrameSize(size_t frameSize)
        : frameSizeType_(FrameSizeType::SHORT), frameSize_(frameSize), totalSize_(0) {

    }

    FrameSize::FrameSize(const common::DataConstBuffer &buffer) {
      if (buffer.size >= 2) {
        frameSizeType_ = FrameSizeType::SHORT;
        frameSize_ = boost::endian::big_to_native(reinterpret_cast<const uint16_t &>(buffer.cdata[0]));
        totalSize_ = frameSize_;
      }

      if (buffer.size >= 6) {
        frameSizeType_ = FrameSizeType::EXTENDED;
        totalSize_ = boost::endian::big_to_native(reinterpret_cast<const uint32_t &>(buffer.cdata[2]));
      }
    }

    common::Data FrameSize::getData() const {
      common::Data data;

      uint16_t frameSizeBig = boost::endian::native_to_big(static_cast<uint16_t>(frameSize_));
      const common::DataConstBuffer frameSizeBigBuffer(&frameSizeBig, sizeof(frameSizeBig));
      common::copy(data, frameSizeBigBuffer);

      if (frameSizeType_ == FrameSizeType::EXTENDED) {
        uint32_t totalSizeBig = boost::endian::native_to_big(static_cast<uint32_t>(totalSize_));
        const common::DataConstBuffer totalSizeBigBuffer(&totalSizeBig, sizeof(totalSizeBig));
        common::copy(data, totalSizeBigBuffer);
      }

      return data;
    }

    size_t FrameSize::getFrameSize() const {
      return frameSize_;
    }

    size_t FrameSize::getTotalSize() const {
      return totalSize_;
    }


    size_t FrameSize::getSizeOf(FrameSizeType type) {
      return type == FrameSizeType::EXTENDED ? 6 : 2;
    }

  }
}

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Updated on 2026-03-15 at 09:02:41 +0000