plcopen/InstancesPathCollector.py
author Edouard Tisserant
Thu, 19 Apr 2018 12:22:40 +0200
changeset 1994 1fdc32be71b8
parent 1953 5736d25bb393
child 3750 f62625418bff
permissions -rw-r--r--
Rework of runtime non-real-time threading, and shared object dynamic loading :
- All exposed operations on PLCObject are now serialized through main thread
(@RunInMain). Only one exception : python trace thread calling _GetDebugData
- Re-loading of same shared object is prevented. dlclose/delte/rewrite/dlopen
don't happen in that case. This is a workaround for some xenomai copperplate
bug triggering segfault, inbetween delete and rewrite.
- Trace thread now waits for data, dies if no data, and dies instead of
suspending as before when no data consumed after 3 seconds.
- Disabled threading in Pyro client
- Enforced auxiliary threads starting sequence : Pyro -> [UI] ->
PLCWorker.RunLoop
1942
a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# This file is part of Beremiz.
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# See COPYING file for copyrights details.
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a4382ae1ba82 Added /plcopen/InstancesPathCollector.py, to move more model xslt querying code away from PLCController.py.
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from __future__ import absolute_import
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from plcopen.XSLTModelQuery import XSLTModelQuery
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5736d25bb393 PEP8 and PyLint conformance: whitespaces and stuff
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1942
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class InstancesPathCollector(XSLTModelQuery):
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    """ object for collecting instances path list"""
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    def __init__(self, controller):
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        self.Instances = []
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        XSLTModelQuery.__init__(self,
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                                controller,
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                                "instances_path.xslt",
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                                [("AddInstance", self.AddInstance)])
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    def AddInstance(self, context, *args):
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        self.Instances.append(args[0][0])
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    def Collect(self, root, name, debug):
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        self._process_xslt(root, debug, instance_type=name)
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        res = self.Instances
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        self.Instances = []
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        return res