Added runtime/spawn_subprocess.py. Force use posix spawn instead of fork, with API similar to subprocess. Using fork in runtime is incompatible with Xenomai, because memory is locked and this can lead to out of memory error.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# This file is part of Beremiz, a Integrated Development Environment for
# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
# Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
# See COPYING file for copyrights details.
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
from __future__ import absolute_import
import os
import subprocess
import wx
def get_inkscape_path():
""" Return the Inkscape path """
import _winreg
try:
svgexepath = _winreg.QueryValue(_winreg.HKEY_LOCAL_MACHINE,
'Software\\Classes\\svgfile\\shell\\Inkscape\\command')
except OSError:
svgexepath = _winreg.QueryValue(_winreg.HKEY_LOCAL_MACHINE,
'Software\\Classes\\inkscape.svg\\shell\\open\\command')
svgexepath = svgexepath.replace('"%1"', '')
return svgexepath.replace('"', '')
def open_win_svg(svgexepath, svgfile):
""" Open Inkscape on Windows platform """
popenargs = [svgexepath]
if svgfile is not None:
popenargs.append(svgfile)
subprocess.Popen(popenargs)
def open_lin_svg(svgexepath, svgfile):
""" Open Inkscape on Linux platform """
if os.path.isfile("/usr/bin/inkscape"):
os.system("%s %s &" % (svgexepath, svgfile))
def open_svg(svgfile):
""" Generic function to open SVG file """
if wx.Platform == '__WXMSW__':
try:
open_win_svg(get_inkscape_path(), svgfile)
except Exception:
wx.MessageBox("Inkscape is not found or installed !")
return None
else:
svgexepath = os.path.join("/usr/bin", "inkscape")
if os.path.isfile(svgexepath):
open_lin_svg(svgexepath, svgfile)
else:
wx.MessageBox("Inkscape is not found or installed !")
return None