Is there an OpenThread UDP interface that can be called in C?

[kelly_he]

I'm trying to add custom functionality to the main.c file in openThread's cli example. I need to use udp related functions, but the otUdpOpen function requires this pointer. 

So is there an OpenThread UDP interface that can be called in C? Or may be I can pass in other pointer?

[Jørgen Holmefjord]

Hi,

If you are using nRF Connect SDK, you can use the function openthread_get_default_instance() to get the OpenThread instance.

See example how it is used in the CoAP Client sample.

Best regards,
Jørgen

[Jørgen Holmefjord]

Hi,

You did not mention anything about the context pointer in your original question, so I assumed you meant the otInstance pointer. You do not need to pass a context pointer, this can be set to NULL if you do not need any context, or you can pass any other object, as it is a void pointer. The context is normally used in the callback handler to map the callback to a specific operation, etc.

Best regards,
Jørgen