beremiz

stop PLC before unloading

2016-12-07, Andrey Skvortsov
f5868f866d2b
file isExecutable
stop PLC before unloading


This fixes segmentation fault if service was quit without stopping it.
It has happened if Beremiz service was quit using taskbar icon or by
closing Beremiz IDE (in case of autostarted local service).

In second case to trigger the bug following step has to be done:
1. Open Beremiz IDE
2. Open project, compile and connect to LOCAL:// runtime
3. Transfer and start the PLC program
4. Open other project without disconneting the PLC runtime
5. Close Beremiz IDE
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (c) 2009, 2010 by Steven Sproat
#
# GNU General Public Licence (GPL)
#
# Whyteboard is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 3 of the License, or (at your option) any later
# version.
# Whyteboard is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
# You should have received a copy of the GNU General Public License along with
# Whyteboard; if not, write to the Free Software Foundation, Inc., 59 Temple
# Place, Suite 330, Boston, MA 02111-1307 USA
"""
This module contains classes extended from wx.Dialog used by the GUI.
"""
import os
import sys
import time
import wx
from wx.lib.agw.hyperlink import HyperLinkCtrl
#----------------------------------------------------------------------
class AboutDialog(wx.Dialog):
"""
A replacement About Dialog for Windows, as it uses a generic frame that
well...sucks.
"""
def __init__(self, parent, info):
title = _("About") + " " + info.Name
wx.Dialog.__init__(self, parent, title=title)
self.info = info
if parent and parent.GetIcon():
self.SetIcon(parent.GetIcon())
image = None
if self.info.Icon:
bitmap = wx.BitmapFromIcon(self.info.Icon)
image = wx.StaticBitmap(self, bitmap=bitmap)
name = wx.StaticText(self, label="%s %s" % (info.Name, info.Version))
description = wx.StaticText(self, label=info.Description)
description.Wrap(400)
copyright = wx.StaticText(self, label=info.Copyright)
url = HyperLinkCtrl(self, label=info.WebSite[0], URL=info.WebSite[1])
font = name.GetClassDefaultAttributes().font
font.SetWeight(wx.FONTWEIGHT_BOLD)
font.SetPointSize(18)
name.SetFont(font)
credits = wx.Button(self, id=wx.ID_ABOUT, label=_("C&redits"))
license = wx.Button(self, label=_("&License"))
close = wx.Button(self, id=wx.ID_CLOSE, label=_("&Close"))
btnSizer = wx.BoxSizer(wx.HORIZONTAL)
btnSizer.Add(credits, flag=wx.CENTER | wx.LEFT | wx.RIGHT, border=5)
btnSizer.Add(license, flag=wx.CENTER | wx.RIGHT, border=5)
btnSizer.Add(close, flag=wx.CENTER | wx.RIGHT, border=5)
sizer = wx.BoxSizer(wx.VERTICAL)
if image:
sizer.Add(image, flag=wx.CENTER | wx.TOP | wx.BOTTOM, border=5)
sizer.Add(name, flag=wx.CENTER | wx.BOTTOM, border=10)
sizer.Add(description, flag=wx.CENTER | wx.BOTTOM, border=10)
sizer.Add(copyright, flag=wx.CENTER | wx.BOTTOM, border=10)
sizer.Add(url, flag=wx.CENTER | wx.BOTTOM, border=15)
sizer.Add(btnSizer, flag=wx.CENTER | wx.BOTTOM, border=5)
container = wx.BoxSizer(wx.VERTICAL)
container.Add(sizer, flag=wx.ALL, border=10)
self.SetSizer(container)
self.Layout()
self.Fit()
self.Centre()
self.Show(True)
self.SetEscapeId(close.GetId())
credits.Bind(wx.EVT_BUTTON, self.on_credits)
license.Bind(wx.EVT_BUTTON, self.on_license)
close.Bind(wx.EVT_BUTTON, lambda evt: self.Destroy())
def on_license(self, event):
LicenseDialog(self, self.info)
def on_credits(self, event):
CreditsDialog(self, self.info)
#----------------------------------------------------------------------
class CreditsDialog(wx.Dialog):
def __init__(self, parent, info):
wx.Dialog.__init__(self, parent, title=_("Credits"), size=(475, 320),
style=wx.DEFAULT_DIALOG_STYLE | wx.RESIZE_BORDER)
if parent and parent.GetIcon():
self.SetIcon(parent.GetIcon())
self.SetMinSize((300, 200))
notebook = wx.Notebook(self)
close = wx.Button(self, id=wx.ID_CLOSE, label=_("&Close"))
close.SetDefault()
developer = wx.TextCtrl(notebook, style=wx.TE_READONLY | wx.TE_MULTILINE)
translators = wx.TextCtrl(notebook, style=wx.TE_READONLY | wx.TE_MULTILINE)
developer.SetValue(u'\n'.join(info.Developers))
translators.SetValue(u'\n'.join(info.Translators))
notebook.AddPage(developer, text=_("Written by"))
notebook.AddPage(translators, text=_("Translated by"))
btnSizer = wx.BoxSizer(wx.HORIZONTAL)
btnSizer.Add(close)
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(notebook, 1, wx.EXPAND | wx.ALL, 10)
sizer.Add(btnSizer, flag=wx.ALIGN_RIGHT | wx.RIGHT | wx.BOTTOM, border=10)
self.SetSizer(sizer)
self.Layout()
self.Show()
self.SetEscapeId(close.GetId())
close.Bind(wx.EVT_BUTTON, lambda evt: self.Destroy())
#----------------------------------------------------------------------
class LicenseDialog(wx.Dialog):
def __init__(self, parent, info):
wx.Dialog.__init__(self, parent, title=_("License"), size=(500, 400),
style=wx.DEFAULT_DIALOG_STYLE | wx.RESIZE_BORDER)
if parent and parent.GetIcon():
self.SetIcon(parent.GetIcon())
self.SetMinSize((400, 300))
close = wx.Button(self, id=wx.ID_CLOSE, label=_("&Close"))
ctrl = wx.TextCtrl(self, style=wx.TE_READONLY | wx.TE_MULTILINE)
ctrl.SetValue(info.License)
btnSizer = wx.BoxSizer(wx.HORIZONTAL)
btnSizer.Add(close)
sizer = wx.BoxSizer(wx.VERTICAL)
sizer.Add(ctrl, 1, wx.EXPAND | wx.ALL, 10)
sizer.Add(btnSizer, flag=wx.ALIGN_RIGHT | wx.RIGHT | wx.BOTTOM, border=10)
self.SetSizer(sizer)
self.Layout()
self.Show()
self.SetEscapeId(close.GetId())
close.Bind(wx.EVT_BUTTON, lambda evt: self.Destroy())
#----------------------------------------------------------------------
def ShowAboutDialog(parent, info):
if os.name == "nt":
AboutDialog(parent, info)
else:
wx.AboutBox(info)