find_source_by_funcs_user_data

Description:

public weak Source find_source_by_funcs_user_data (SourceFuncs funcs, void* user_data)

Finds a source with the given source functions and user data.

If multiple sources exist with the same source function and user data, the first one found will be returned.

this	a MainContext (if null, the default context will be used).
funcs	the `source_funcs` passed to Source.
user_data	the user data from the callback.

the source, if one was found, otherwise null