def make_function_type(cffi_func):
    cffi_type = _ool_func_types.get(cffi_func) or ffi.typeof(cffi_func)
    if getattr(cffi_type, 'kind', '') == 'struct':
        raise TypeError('No support for CFFI struct values')
    sig = map_type(cffi_type)
    return types.ExternalFunctionPointer(sig, get_pointer=get_pointer)
Send several packets continuously.
dataset/ETHPy150Open numba/numba/numba/typing/cffi_utils.py/make_function_type--crossover with--dataset/ETHPy150Open osrg/ryu/ryu/tests/switch/tester.py/OfTester._send_packet_thread