circuitpython/examples/usercmodule/cppexample/examplemodule.c
stijn 25c4563f26 examples: Add example code for user C modules, both C and C++.
Add working example code to provide a starting point for users with files
that they can just copy, and include the modules in the coverage test to
verify the complete user C module build functionality.  The cexample module
uses the code originally found in cmodules.rst, which has been updated to
reflect this and partially rewritten with more complete information.
2020-10-29 15:30:42 +11:00

26 lines
1.1 KiB
C

#include <examplemodule.h>
// Define a Python reference to the function we'll make available.
// See example.cpp for the definition.
STATIC MP_DEFINE_CONST_FUN_OBJ_2(cppfunc_obj, cppfunc);
// Define all properties of the module.
// Table entries are key/value pairs of the attribute name (a string)
// and the MicroPython object reference.
// All identifiers and strings are written as MP_QSTR_xxx and will be
// optimized to word-sized integers by the build system (interned strings).
STATIC const mp_rom_map_elem_t cppexample_module_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_cppexample) },
{ MP_ROM_QSTR(MP_QSTR_cppfunc), MP_ROM_PTR(&cppfunc_obj) },
};
STATIC MP_DEFINE_CONST_DICT(cppexample_module_globals, cppexample_module_globals_table);
// Define module object.
const mp_obj_module_t cppexample_user_cmodule = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t *)&cppexample_module_globals,
};
// Register the module to make it available in Python.
MP_REGISTER_MODULE(MP_QSTR_cppexample, cppexample_user_cmodule, MODULE_CPPEXAMPLE_ENABLED);