source/tests.old/ctypes-test.py

   1 #!/usr/bin/env python3
   2 # -*- coding: utf-8 -*-
   3
   4 from ctypes import *
   5
   6 PythonSideFn = CFUNCTYPE(None, c_int)
   7
   8 lib = CDLL("./ctypes-test.so", RTLD_LOCAL)
   9
  10 lib.set_python_side_fn.argtypes = [PythonSideFn]
  11 lib.set_python_side_fn.restype = None
  12 lib.call_python_side_fn.argtypes = None
  13 lib.call_python_side_fn.restype = None
  14
  15 def pyFn(checker):
  16     print("Python function called from C code, checker:", checker)
  17
  18 _pyFn = PythonSideFn(pyFn)
  19 lib.set_python_side_fn(_pyFn)
  20
  21 print("Python side ready, calling C function now")
  22 lib.call_python_side_fn()