tests/logging/py_ext_0@py_ext/pyfile.xml
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Wed, 13 Mar 2019 15:43:45 +0300
changeset 2543 2befed4d6ca8
parent 1639 1953c268a194
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)
<?xml version='1.0' encoding='utf-8'?>
<PyFile xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <variables/>
  <globals>
    <xhtml:p><![CDATA[import threading, time

MyT = None
Stop = False

def StartLog():
    global MyT
    MyT=threading.Thread(target = DoLog)
    MyT.start()

def DoLog():
    global Stop
    while not Stop:
        PLCObject.LogMessage("Python side Logging (PLC is %s)"%PLCObject.PLCStatus)
        time.sleep(0.3)

def StopLog():
    global MyT,Stop
    Stop=True

_runtime_init.append(StartLog)
_runtime_cleanup.append(StopLog)
]]></xhtml:p>
  </globals>
  <init>
    <xhtml:p><![CDATA[]]></xhtml:p>
  </init>
  <cleanup>
    <xhtml:p><![CDATA[]]></xhtml:p>
  </cleanup>
  <start>
    <xhtml:p><![CDATA[]]></xhtml:p>
  </start>
  <stop>
    <xhtml:p><![CDATA[]]></xhtml:p>
  </stop>
</PyFile>