MicroPython Forum (Archive)

igorgatis

Say I have a call like

def bar(result):
    print(result)

def foo():
  nativemodulex.call(bar)

foo()

What the C code for nativemodulex.call look like?

igorgatis

Say C function looks like this:

Code: Select all

int SetCallBacks(void (*A)(void), void (*B)(char *), int (*C)(char **, int, int, int *))

1. What the C code for SetCallBacks should look like?

2. What the Python code for callbacks A, B and C should look like?

igorgatis

Let's say I find a good mechanism (be it through Clang or SWIG's XML) to generate micropython bindings. According to dhylands orientation, the generated binding needs to be "registered" as a builtin module. Is that the only way to go? Builtin modules? I guess that's almost by design since the port h...

igorgatis

dhylands: this is great documentation. Thanks a lot. stijn: I wrote a very simple python program which output most of the "important" stuff from .h file I want to create a module for. It prints function names, typedefs and even "enums" built with #define (PARSE_DETAILED_PROCESSING_RECORD required). ...

igorgatis

Great article: http://szelei.me/code-generator/ I had to make a small adjustment to have access to macros: translation_unit = index.parse(sys.argv[1], sys.argv[2:], options=clang.cindex.TranslationUnit.PARSE_DETAILED_PROCESSING_RECORD) Works very well. Now I just need to master module creation. Any ...

igorgatis

Just learnt there are a handful of wrappers out there: SWIG, Boost.Python, SIP... Here is an interesting summary: http://stackoverflow.com/questions/1492755/python-c-binding-library-comparison# http://intermediate-and-advanced-software-carpentry.readthedocs.org/en/latest/c++-wrapping.html The line I...

igorgatis

The platform I'm using upy on has this GUI API in C++. I found myself repeating wrap patterns. SWIG may add overhead but native GUI should still perform better than other python based approaches, I think. Perhaps I could check how much effort is needed to modify SWIG to support generating code compa...

igorgatis

Is there any support for SWIG or similar wrapping mechanism?

igorgatis

I'm trying to use MICROPY_OBJ_REPR_C but it fails with:

Code: Select all

 identifier "mp_float_t" is undefined

Should it include mpconfig.h?

In time: if I'm using a 32-bit (big endian) platform, what representation model should I use? A, B, C or D? And why?

igorgatis

Great. Thanks a lot.

MicroPython Forum (Archive)

Search found 21 matches

Calling Python from C

Re: SWIG (or similar wrapping tool) support?

Re: SWIG (or similar wrapping tool) support?

Re: SWIG (or similar wrapping tool) support?

Re: SWIG (or similar wrapping tool) support?

Re: SWIG (or similar wrapping tool) support?

Re: SWIG (or similar wrapping tool) support?

SWIG (or similar wrapping tool) support?

MICROPY_OBJ_REPR_C causes 'identifier "mp_float_t" is undefined'

Re: No alloca.h