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tests/wamp/py_ext_0@py_ext/pyfile.xml
author Andrey Skvortsov <andrej.skvortzov@gmail.com>
Thu, 28 Apr 2016 13:05:57 +0300
changeset 1507 d7f474d10210
parent 1439 a68cd4253259
permissions -rw-r--r--
fix issue with sometimes wrong return code of ProcessLogger


As a result of wrong return code Beremiz gives folowing traceback:
Traceback (most recent call last):
File "./Beremiz.py", line 850, in OnMenu
getattr(self.CTR, method)()
File "/home/developer/WorkData/PLC/beremiz/beremiz/ProjectController.py", line 925, in _Build
IECGenRes = self._Generate_SoftPLC()
File "/home/developer/WorkData/PLC/beremiz/beremiz/ProjectController.py", line 568, in _Generate_SoftPLC
return self._Compile_ST_to_SoftPLC()
File "/home/developer/WorkData/PLC/beremiz/beremiz/ProjectController.py", line 661, in _Compile_ST_to_SoftPLC
C_files.remove("POUS.c")
ValueError: list.remove(x): x not in list

The problem is that both threads (for reading stdout and stderr) call self.Proc.poll(),
that updates internal returncode field. This call is done without any locking and the first thread gets correct result,
but other gets 0 as retval. If 0 gets thread, that afterwards calls callback finish, then wrong return code is returned
to the parent. Now only the thread with a callback polls for the return code, other thread just checked local value.

Additionally function spin() waits now until all threads finish reading their pipes, so the results are always correct.
1439
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
     1
 
<?xml version='1.0' encoding='utf-8'?>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
     2
 
<PyFile xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
     3
 
  <variables>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
     4
 
    <variable name="PyVar0" type="DINT"/>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
     5
 
    <variable name="PyVar1" type="DINT"/>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
     6
 
  </variables>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
     7
 
  <globals>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
     8
 
    <xhtml:p><![CDATA[]]></xhtml:p>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
     9
 
  </globals>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
    10
 
  <init>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
    11
 
    <xhtml:p><![CDATA[]]></xhtml:p>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
    12
 
  </init>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
    13
 
  <cleanup>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
    14
 
    <xhtml:p><![CDATA[]]></xhtml:p>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
    15
 
  </cleanup>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
    16
 
  <start>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
    17
 
    <xhtml:p><![CDATA[]]></xhtml:p>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
    18
 
  </start>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
    19
 
  <stop>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
    20
 
    <xhtml:p><![CDATA[]]></xhtml:p>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
    21
 
  </stop>
a68cd4253259 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.
Edouard Tisserant
parents:
diff changeset 
    22
 
</PyFile>
beremiz