incomingMessage.h

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// Copyright (c) 2022 Computer Vision Center (CVC) at the Universitat Autonoma
// de Barcelona (UAB).
//
// This work is licensed under the terms of the MIT license.
// For a copy, see <https://opensource.org/licenses/MIT>.
 
#include "carla/BufferPool.h"
#include "carla/Debug.h"
#include "carla/Exception.h"
#include "carla/Logging.h"
#include "carla/streaming/detail/Types.h"
#include "carla/Time.h"
 
#include <exception>
 
namespace carla {
namespace multigpu {
 
  /// Helper for reading incoming TCP messages. Allocates the whole message in
  /// a single buffer.
  class IncomingMessage {
  public:
 
    explicit IncomingMessage(Buffer &&buffer) : _buffer(std::move(buffer)) {}
 
    boost::asio::mutable_buffer size_as_buffer() {
      return boost::asio::buffer(&_size, sizeof(_size));
    }
 
    boost::asio::mutable_buffer buffer() {
      DEBUG_ASSERT(_size > 0u);
      _buffer.reset(_size);
      return _buffer.buffer();
    }
 
    auto size() const {
      return _size;
    }
 
    auto pop() {
      return std::move(_buffer);
    }
 
  private:
 
    carla::streaming::detail::message_size_type _size = 0u;
 
    Buffer _buffer;
  };
 
 
} // namespace multigpu
} // namespace carla