How to debug Cura Engine in debugger

[Ricky 3]

 

I posted a question in Cura Github issue. https://github.com/Ultimaker/CuraEngine/issues/790

 

I apologized to post it twice. Because I don't know where is the place to ask the question. 

[ahoeben 672]

I can't help you with Cura 15.04.x (because I don't have any experience developing for it), but I recently found out how to launch CuraEngine in gdb in connection with a running instance of Cura.

 

* Start Cura with the command-line option --external-backend

python3 cura_app.py --external-backend

* In the output, look for a line like this:

[MainThread] UM.Backend.Backend._createSocket [242]: Listening for backend connections on 49674

* Launch CuraEngine manually in gdb, connecting on that port:

gdb --args CuraEngine connect 127.0.0.1:49674

 

[Ricky 3]

I don't see such option in 15.04 UI. Perhaps I should add that UI code.

 

In any case, thanks for your advice!