Creating a TCP Server MEX file

Has anybody tried to create a mex file running as a tcp server? I'm trying to get rid of the error below and build a MEX file out of it.

I'm getting an error from my code generation report using matlab-coder to generate a mex file:

• Found unsupported global data initialization class for global variable 'interfaceObject'.MATLAB class 'tcpip' found at 'interfaceObject' is unsupported.*

The code is something like this:

    function TempStream_Live_D  %#codegen
    global interfaceObject 

    IP_to_track = '192.168.194.185';
    coder.extrinsic('tcpip');
    interfaceObject = tcpip(IP_to_track,2101,'NetworkRole','server');
    ...

Here's the hyperlink of the example tcpip-server file I edited from: http://www.mathworks.com/matlabcentral/fileexchange/345

Note: Original question posted on stackoverflow. http://stackoverflow.com/questions/13431586/creating-a-tcp-server-mex-file

Answer 1

[Kaustubha Govind]

I'm not sure if there is a workaround to this, since it looks like MATLAB Coder does not support the 'tcpip' class for code-generation. In any case, if you have to make coder.extrinsic calls every time you have to use the interface object, which essentially dispatches the call to MATLAB engine, is there any advantage of creating a MEX-file?

[Denz Choe]

You are right! Your question prompts me to do some thinking should I even use MATLAB coder to optimize my code when in fact, all I want to do is just generate a standalone executable.. Now, I've abandon the optimizing idea. Thanks for your input :)

[lll]

have you solved this problem? I am also facing this problem. The TCPIP class can not be supported in sfunction. How to use the m-code of server and client, to realise the communication in the different simulinks through local network then?

Answer 2

[Antoine Steiblen]

I have just run into this problem, any solutions since this post?

[Denz Choe]

Gosh, this is so long ago.. I did find a solution I think.. But I did not pursue with Matlab Coder. Let me see if I can dig up the files

[Denz Choe]

Ok, I managed to find my codes.. But first; let me re-iterate, I did not pursue to build a MEX file with Matlab Coder.

The TCP Server I generated was an EXE file, using the Matlab Compiler instead. So it may not be a solution that you are looking for. Kaustubha Govind asked me what was the benefit of creating a MEX-File, and I couldn't find an answer, since what I actually wanted was to create a standalone EXE program.

To understand the difference between Matlab Compiler and Matlab Coder for EXE file or MEX file generation (in respective order); see the response from Kaustubha Govind https://www.mathworks.com/matlabcentral/answers/23369#answer_30714