c_ext/c_ext.py
author Edouard Tisserant <edouard.tisserant@gmail.com>
Tue, 15 Nov 2022 20:43:39 +0100
branchwxPython4
changeset 3677 6d9040e07c32
parent 1853 47a3f39bead0
child 3750 f62625418bff
permissions -rw-r--r--
OPC-UA: only support the encryption policy selected in config.

By default open62541 client accepts all supported policies, but in makes problem
when negociating with some servers while most clients seems to only support
one policy at a time.
#!/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

from c_ext.CFileEditor import CFileEditor
from CodeFileTreeNode import CodeFile


class CFile(CodeFile):
    XSD = """<?xml version="1.0" encoding="ISO-8859-1" ?>
    <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
      <xsd:element name="CExtension">
        <xsd:complexType>
          <xsd:attribute name="CFLAGS" type="xsd:string" use="required"/>
          <xsd:attribute name="LDFLAGS" type="xsd:string" use="required"/>
        </xsd:complexType>
      </xsd:element>
    </xsd:schema>
    """
    CODEFILE_NAME = "CFile"
    SECTIONS_NAMES = [
        "includes",
        "globals",
        "initFunction",
        "cleanUpFunction",
        "retrieveFunction",
        "publishFunction"]
    EditorType = CFileEditor

    def GetIconName(self):
        return "Cfile"

    def CodeFileName(self):
        return os.path.join(self.CTNPath(), "cfile.xml")

    def CTNGenerate_C(self, buildpath, locations):
        """
        Generate C code
        @param current_location: Tupple containing confnode IEC location : %I0.0.4.5 => (0,0,4,5)
        @param locations: List of complete variables locations \
            [{"IEC_TYPE" : the IEC type (i.e. "INT", "STRING", ...)
            "NAME" : name of the variable (generally "__IW0_1_2" style)
            "DIR" : direction "Q","I" or "M"
            "SIZE" : size "X", "B", "W", "D", "L"
            "LOC" : tuple of interger for IEC location (0,1,2,...)
            }, ...]
        @return: [(C_file_name, CFLAGS),...] , LDFLAGS_TO_APPEND
        """
        current_location = self.GetCurrentLocation()
        # define a unique name for the generated C file
        location_str = "_".join(map(str, current_location))

        text = "/* Code generated by Beremiz c_ext confnode */\n\n"
        text += "#include <stdio.h>\n\n"

        # Adding includes
        text += "/* User includes */\n"
        text += self.CodeFile.includes.getanyText().strip()
        text += "\n"

        text += '#include "iec_types_all.h"\n\n'

        # Adding variables
        config = self.GetCTRoot().GetProjectConfigNames()[0]
        text += "/* User variables reference */\n"
        for variable in self.CodeFile.variables.variable:
            var_infos = {
                "name": variable.getname(),
                "global": "%s__%s" % (config.upper(),
                                      variable.getname().upper()),
                "type": "__IEC_%s_t" % variable.gettype()}
            text += "extern %(type)s %(global)s;\n" % var_infos
            text += "#define %(name)s %(global)s.value\n" % var_infos
        text += "\n"

        # Adding user global variables and routines
        text += "/* User internal user variables and routines */\n"
        text += self.CodeFile.globals.getanyText().strip()
        text += "\n"

        # Adding Beremiz confnode functions
        text += "/* Beremiz confnode functions */\n"
        text += "int __init_%s(int argc,char **argv)\n{\n" % location_str
        text += self.CodeFile.initFunction.getanyText().strip()
        text += "  return 0;\n}\n\n"

        text += "void __cleanup_%s(void)\n{\n" % location_str
        text += self.CodeFile.cleanUpFunction.getanyText().strip()
        text += "\n}\n\n"

        text += "void __retrieve_%s(void)\n{\n" % location_str
        text += self.CodeFile.retrieveFunction.getanyText().strip()
        text += "\n}\n\n"

        text += "void __publish_%s(void)\n{\n" % location_str
        text += self.CodeFile.publishFunction.getanyText().strip()
        text += "\n}\n\n"

        Gen_Cfile_path = os.path.join(buildpath, "CFile_%s.c" % location_str)
        cfile = open(Gen_Cfile_path, 'w')
        cfile.write(text)
        cfile.close()

        matiec_CFLAGS = '"-I%s"' % os.path.abspath(self.GetCTRoot().GetIECLibPath())

        return [(Gen_Cfile_path, str(self.CExtension.getCFLAGS() + matiec_CFLAGS))], str(self.CExtension.getLDFLAGS()), True