#!/usr/bin/env python

# -*- coding: utf-8 -*-

from __future__ import absolute_import

from __future__ import print_function

import traceback

import sys

from runtime.Worker import worker

MainWorker = worker()

_PLCObjectSingleton = None

def GetPLCObjectSingleton():

assert _PLCObjectSingleton is not None

return _PLCObjectSingleton

def LogMessageAndException(msg, exp=None):

if exp is None:

exp = sys.exc_info()

if _PLCObjectSingleton is not None:

_PLCObjectSingleton.LogMessage(0, msg + '\n'.join(traceback.format_exception(*exp)))

print(msg)

traceback.print_exception(*exp)

def CreatePLCObjectSingleton(*args, **kwargs):

global _PLCObjectSingleton

from runtime.PLCObject import PLCObject # noqa # pylint: disable=wrong-import-position

_PLCObjectSingleton = PLCObject(*args, **kwargs)

def default_evaluator(tocall, *args, **kwargs):

try:

res = (tocall(*args, **kwargs), None)

except Exception:

res = (None, sys.exc_info())

return res