py_ext/py_ext.py
author Edouard Tisserant
Thu, 05 Feb 2015 23:32:31 +0100
changeset 1439 a68cd4253259
parent 1132 28f96aa9c070
child 1511 91538d0c242c
permissions -rw-r--r--
Added stub code for runtime WAMP client. Added runtime command line switch to select WAMP url and Nevow web site port. Web port is now fixed, next port number is not tested if bind fails.
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import os
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from POULibrary import POULibrary
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from PythonFileCTNMixin import PythonFileCTNMixin
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class PythonLibrary(POULibrary):
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    def GetLibraryPath(self):
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        return os.path.join(os.path.split(__file__)[0], "pous.xml") 
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    def Generate_C(self, buildpath, varlist, IECCFLAGS):
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        plc_python_filepath = os.path.join(
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            os.path.split(__file__)[0], "plc_python.c")
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        plc_python_file = open(plc_python_filepath, 'r')
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        plc_python_code = plc_python_file.read()
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        plc_python_file.close()
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        python_eval_fb_list = []
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        for v in varlist:
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            if v["vartype"] == "FB" and v["type"] in ["PYTHON_EVAL",
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                                                      "PYTHON_POLL"]:
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                python_eval_fb_list.append(v)
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        python_eval_fb_count = max(1, len(python_eval_fb_list))
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        # prepare python code
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        plc_python_code = plc_python_code % {
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            "python_eval_fb_count": python_eval_fb_count }
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        Gen_Pythonfile_path = os.path.join(buildpath, "py_ext.c")
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        pythonfile = open(Gen_Pythonfile_path,'w')
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        pythonfile.write(plc_python_code)
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        pythonfile.close()
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        return (["py_ext"], [(Gen_Pythonfile_path, IECCFLAGS)], True), ""
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class PythonFile(PythonFileCTNMixin):
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    def GetIconName(self):
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        return "Pyfile"
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