sethupavan12 / DyLoader-MatlabCpp

DyLoader C++ and Matlab

DyLoader help dynamically load methods from a dynamic library using DyLib and some custom scripts

Case 1: Load a function from a dynamic library compiled with C++

Example

Prechecks and Basic Idea

1. if you are windows user, MinGW so you can enjoy gcc/g++ on Windows
2. Open folder mexBased in main branch of the repository (disregard the name)
3. Open and checkout Wrapper.cpp. It is the file that has been / will be compiled into a DLL Notice how every function has DYLIB_API. It is a must for Dylib to be able to extract the functions from the DLL
4. Now open main.cpp . It is the script we use to extract a function from DLL
5. Make sure you have the following files to proceed; main.cpp, dylib.hpp, shared_lib.h, build.bat, wrapper.cpp

Making a DLL and Using it

1. The shared_lib.h and build.bat has been prewritten to work on Windows(not tested on Linux or MacOs)
2. Go to your command prompt and navigate to mexBased folder/ the folder you have these files
3. type build.bat If all goes good u should see 2 commands pop up and return nothing
4. type g++ main.cpp -o main.exe (if u leave the -o part, it will default to a.exe )
5. type main and hit enter. You should see Success Hello Success

This is trial attempt of how we tell user to do stuff before compilation of DLL

We can further improve on this with writing more automated scripts as well

Tool that extracts functions or variables from dynamic library at Run-time to compute MEX C++ functions dynamically using MATLAB Coder

Usage for custom scripts

Make sure all you've got MinGW if you are windows

1. Make sure you include "dylib.hpp" in your custom script where you have your functions that are going to be used
2. Make sure there's DYLIB_API infront of function names. (The functions you want to use)
3. Edit build.bat according to the name of your file (or we can restrict the user here)
4. Remember the function name you'd like to use and enter when prompted for it at some point in RAT