plcopen/InstancesPathCollector.py
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Wed, 13 Mar 2019 15:43:45 +0300
changeset 2543 2befed4d6ca8
parent 1953 5736d25bb393
child 3750 f62625418bff
permissions -rw-r--r--
Fix Pyro work with SSL wrapper (sslpsk)

Following error was shown in Beremiz console:
PYRO connecting to URI : PYROS://127.0.0.1:3001#beremiz
Exception while connecting to 'PYROS://127.0.0.1:3001#beremiz': non-zero flags not allowed in calls to recv() on <class 'ssl.SSLSocket'>
Connection failed to PYROS://127.0.0.1:3001#beremiz!

Reason is that Pyro calls socket recv() with MSGWAITALL flag, that causes ValueError exception.

https://docs.python.org/2/library/ssl.html
recv(), recv_into() (but passing a non-zero flags argument is not allowed)
1942
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
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#!/usr/bin/env python
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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     2
# -*- coding: utf-8 -*-
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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# This file is part of Beremiz.
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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# See COPYING file for copyrights details.
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
     5
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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from __future__ import absolute_import
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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from plcopen.XSLTModelQuery import XSLTModelQuery
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
     8
1953
5736d25bb393 PEP8 and PyLint conformance: whitespaces and stuff
Edouard Tisserant
parents: 1942
diff changeset
     9
1942
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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class InstancesPathCollector(XSLTModelQuery):
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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    """ object for collecting instances path list"""
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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    def __init__(self, controller):
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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        self.Instances = []
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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        XSLTModelQuery.__init__(self,
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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                                controller,
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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                                "instances_path.xslt",
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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                                [("AddInstance", self.AddInstance)])
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
    18
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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    def AddInstance(self, context, *args):
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
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parents:
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        self.Instances.append(args[0][0])
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
diff changeset
    21
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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    def Collect(self, root, name, debug):
1953
5736d25bb393 PEP8 and PyLint conformance: whitespaces and stuff
Edouard Tisserant
parents: 1942
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        self._process_xslt(root, debug, instance_type=name)
1942
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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        res = self.Instances
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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    25
        self.Instances = []
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
Edouard Tisserant <edouard.tisserant@gmail.com>
parents:
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        return res