CODEWITHSUNDEEP
c++arraysdeserializationtcp
ravi
ravi

Reputation: 6328

Deserialize bytes array in C++ which was serialized in C#

I have an array of CameraSpacePoint, which I have converted into bytes in C# programming language. The CameraSpacePoint is defined as follow:

namespace Microsoft.Kinect
{
    public struct CameraSpacePoint
    {
        public float X;
        public float Y;
        public float Z;
   }
}

To convert the array of CameraSpacePoint into bytes, I used the following method in C#:

public static byte[] ObjectToByteArray(Object obj)
{
    BinaryFormatter bf = new BinaryFormatter();
    using (var ms = new MemoryStream())
    {
        bf.Serialize(ms, obj);
        return ms.ToArray();
    }
}

The bytes array is then transferred using TCP. I am trying to receive this byte array on the other machine in the following manner:

#include <ros/ros.h>
#include <boost/asio.hpp>
constexpr size_t data_size = 512 * 424;
unsigned char data_buffer[data_size];
boost::asio::read(socket, boost::asio::buffer(data_buffer, data_size));

I declared a similar class in C++ as follow:

class CameraSpacePoint
{
public:
    float X;
    float Y;
    float Z;
};

I want to know that how to convert back byte array into my defined CameraSpacePoint object of array?

Upvotes: 0

Views: 1050

Answers (1)

Soroush Rabiei
Soroush Rabiei

Reputation: 10868

Memory layout and serialization of objects in C# programming language has nothing to do with similar concepts in C/C++. Having different compilers/OSes, even in a C++ to C++ scenario you may get different memory layouts for same struct or class (according to memory layout, etc.).

What you really need is a common protocol for both languages to serialize and deserialize similar objects. There are some serialization libraries out there which support both languages:

  • Google's Protocol Buffers Supports both C# and C++, it's platform-neutral. (You can use it to serialize/deserialize between big-endian ARM and little-endian x86_64 for example)

  • Microsoft Bond Supports both C# and C++

Upvotes: 2

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