errors.py 文件源码

def check_for_error(error_code):
    from nidaqmx._lib import lib_importer

    if error_code < 0:
        error_buffer = ctypes.create_string_buffer(2048)

        cfunc = lib_importer.windll.DAQmxGetExtendedErrorInfo
        if cfunc.argtypes is None:
            with cfunc.arglock:
                if cfunc.argtypes is None:
                    cfunc.argtypes = [ctypes.c_char_p, ctypes.c_uint]
        cfunc(error_buffer, 2048)

        raise DaqError(error_buffer.value.decode("utf-8"), error_code)

    elif error_code > 0:
        error_buffer = ctypes.create_string_buffer(2048)

        cfunc = lib_importer.windll.DAQmxGetErrorString
        if cfunc.argtypes is None:
            with cfunc.arglock:
                if cfunc.argtypes is None:
                    cfunc.argtypes = [ctypes.c_int, ctypes.c_char_p,
                                      ctypes.c_uint]
        cfunc(error_code, error_buffer, 2048)

        warnings.warn(DaqWarning(
            error_buffer.value.decode("utf-8"), error_code))