HGKeeper

beremiz

Runtime: work around 1s delay added when using twisted reactor's callLater.
wxPython4
2022-10-05, Edouard Tisserant

c3aae4c95bc1

Runtime: work around 1s delay added when using twisted reactor's callLater.

Since wxPython4, using wxReactor from non-main thread was producing
exceptions in wxWidget's C++ code. Then reactor.run() was called from
main thread, and runtime's worker was delegating calls to reactor
with callLater(0, callable).

While this worked perfectly with wxReactor, it did introduce an unexplained
1 second delay to each worker call when using nomal linux reactors
(i.e. without wxPython). As a workaround reactor runs in a thread when using
twisted without wxPython

<?xml version='1.0' encoding='utf-8'?>

<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.plcopen.org/xml/tc6_0201" xmlns:xhtml="http://www.w3.org/1999/xhtml" xsi:schemaLocation="http://www.plcopen.org/xml/tc6_0201">

<fileHeader companyName="beremiz" productName="Beremiz" productVersion="0.0" creationDateTime="2008-12-14T16:21:19"/>

<contentHeader name="Beremiz wxHMI test" modificationDateTime="2017-06-05T14:01:40">

<coordinateInfo>

<pageSize x="1024" y="1024"/>

<fbd>

<scaling x="5" y="5"/>

</fbd>

<ld>

<scaling x="5" y="5"/>

</ld>

<sfc>

<scaling x="5" y="5"/>

</sfc>

</coordinateInfo>

</contentHeader>

<types>

<dataTypes/>

<pous>

<pou name="main_pytest" pouType="program">

<interface>

<localVars>

<variable name="getCheckBoxState">

<type>

<derived name="python_poll"/>

</type>

</variable>

<variable name="counter">

<type>

<INT/>

</type>

</variable>

<variable name="setSpinCtrlValue">

<type>

<derived name="python_poll"/>

</type>

</variable>

</localVars>

</interface>

<body>

<FBD>

<block localId="24" width="125" height="90" typeName="python_poll" instanceName="getCheckBoxState" executionOrderId="0">

<position x="480" y="215"/>

<inputVariables>

<variable formalParameter="TRIG">

<connectionPointIn>

<relPosition x="0" y="35"/>

<connection refLocalId="25">

<position x="480" y="250"/>

<position x="420" y="250"/>

</connection>

</connectionPointIn>

</variable>

<variable formalParameter="CODE">

<connectionPointIn>

<relPosition x="0" y="70"/>

<connection refLocalId="26">

<position x="480" y="285"/>

<position x="420" y="285"/>

</connection>

</connectionPointIn>

</variable>

</inputVariables>

<inOutVariables/>

<outputVariables>

<variable formalParameter="ACK">

<connectionPointOut>

<relPosition x="125" y="35"/>

</connectionPointOut>

</variable>

<variable formalParameter="RESULT">

<connectionPointOut>

<relPosition x="125" y="70"/>

</connectionPointOut>

</variable>

</outputVariables>

</block>

<inVariable localId="25" height="30" width="100" executionOrderId="0" negated="false">

<position x="320" y="235"/>

<connectionPointOut>

<relPosition x="100" y="15"/>

</connectionPointOut>

<expression>BOOL#TRUE</expression>

</inVariable>

<inVariable localId="26" height="30" width="400" executionOrderId="0" negated="false">

<position x="20" y="270"/>

<connectionPointOut>

<relPosition x="400" y="15"/>

</connectionPointOut>

<expression>'int(HMIFrame.checkbox_1.GetValue())'</expression>

</inVariable>

<inVariable localId="27" height="30" width="40" executionOrderId="0" negated="false">

<position x="535" y="505"/>

<connectionPointOut>

<relPosition x="40" y="15"/>

</connectionPointOut>

<expression>')'</expression>

</inVariable>

<inVariable localId="28" height="30" width="330" executionOrderId="0" negated="false">

<position x="150" y="415"/>

<connectionPointOut>

<relPosition x="330" y="15"/>

</connectionPointOut>

<expression>'HMIFrame.spin_ctrl_1.SetValue('</expression>

</inVariable>

<block localId="30" width="145" height="85" typeName="STRING_TO_INT" executionOrderId="0">

<position x="670" y="215"/>

<inputVariables>

<variable formalParameter="EN">

<connectionPointIn>

<relPosition x="0" y="35"/>

<connection refLocalId="24" formalParameter="ACK">

<position x="670" y="250"/>

<position x="605" y="250"/>

</connection>

</connectionPointIn>

</variable>

<variable formalParameter="IN">

<connectionPointIn>

<relPosition x="0" y="70"/>

<connection refLocalId="24" formalParameter="RESULT">

<position x="670" y="285"/>

<position x="605" y="285"/>

</connection>

</connectionPointIn>

</variable>

</inputVariables>

<inOutVariables/>

<outputVariables>

<variable formalParameter="ENO">

<connectionPointOut>

<relPosition x="145" y="35"/>

</connectionPointOut>

</variable>

<variable formalParameter="OUT">

<connectionPointOut>

<relPosition x="145" y="70"/>

</connectionPointOut>

</variable>

</outputVariables>

</block>

<block localId="32" width="80" height="80" typeName="ADD" executionOrderId="0">

<position x="135" y="450"/>

<inputVariables>

<variable formalParameter="EN">

<connectionPointIn>

<relPosition x="0" y="30"/>

<connection refLocalId="38" formalParameter="OUT">

<position x="135" y="480"/>

<position x="100" y="480"/>

<position x="100" y="330"/>

<position x="1140" y="330"/>

<position x="1140" y="250"/>

<position x="1130" y="250"/>

</connection>

</connectionPointIn>

</variable>

<variable formalParameter="IN1">

<connectionPointIn>

<relPosition x="0" y="50"/>

<connection refLocalId="39">

<position x="135" y="500"/>

<position x="90" y="500"/>

</connection>

</connectionPointIn>

</variable>

<variable formalParameter="IN2">

<connectionPointIn>

<relPosition x="0" y="70"/>

<connection refLocalId="33">

<position x="135" y="520"/>

<position x="125" y="520"/>

<position x="125" y="540"/>

<position x="340" y="540"/>

<position x="340" y="500"/>

<position x="320" y="500"/>

</connection>

</connectionPointIn>

</variable>

</inputVariables>

<inOutVariables/>

<outputVariables>

<variable formalParameter="ENO">

<connectionPointOut>

<relPosition x="80" y="30"/>

</connectionPointOut>

</variable>

<variable formalParameter="OUT">

<connectionPointOut>

<relPosition x="80" y="50"/>

</connectionPointOut>

</variable>

</outputVariables>

</block>

<block localId="34" width="80" height="100" typeName="CONCAT" executionOrderId="0">

<position x="605" y="430"/>

<inputVariables>

<variable formalParameter="EN">

<connectionPointIn>

<relPosition x="0" y="30"/>

<connection refLocalId="35" formalParameter="ENO">

<position x="605" y="460"/>

<position x="520" y="460"/>

<position x="520" y="480"/>

<position x="500" y="480"/>

</connection>

</connectionPointIn>

</variable>

<variable formalParameter="IN1">

<connectionPointIn>

<relPosition x="0" y="50"/>

<connection refLocalId="28">

<position x="605" y="480"/>

<position x="562" y="480"/>

<position x="562" y="430"/>

<position x="480" y="430"/>

</connection>

</connectionPointIn>

</variable>

<variable formalParameter="IN2">

<connectionPointIn>

<relPosition x="0" y="70"/>

<connection refLocalId="35" formalParameter="OUT">

<position x="605" y="500"/>

<position x="500" y="500"/>

</connection>

</connectionPointIn>

</variable>

<variable formalParameter="IN3">

<connectionPointIn>

<relPosition x="0" y="90"/>

<connection refLocalId="27">

<position x="605" y="520"/>

<position x="575" y="520"/>

</connection>

</connectionPointIn>

</variable>

</inputVariables>

<inOutVariables/>

<outputVariables>

<variable formalParameter="ENO">

<connectionPointOut>

<relPosition x="80" y="30"/>

</connectionPointOut>

</variable>

<variable formalParameter="OUT">

<connectionPointOut>

<relPosition x="80" y="50"/>

</connectionPointOut>

</variable>

</outputVariables>

</block>

<inOutVariable localId="33" height="35" width="85" executionOrderId="0" negatedOut="false" negatedIn="false">

<position x="235" y="485"/>

<connectionPointIn>

<relPosition x="0" y="15"/>

<connection refLocalId="32" formalParameter="OUT">

<position x="235" y="500"/>

<position x="215" y="500"/>

</connection>

</connectionPointIn>

<connectionPointOut>

<relPosition x="85" y="15"/>

</connectionPointOut>

<expression>counter</expression>

</inOutVariable>

<block localId="35" width="145" height="60" typeName="INT_TO_STRING" executionOrderId="0">

<position x="355" y="450"/>

<inputVariables>

<variable formalParameter="EN">

<connectionPointIn>

<relPosition x="0" y="30"/>

<connection refLocalId="32" formalParameter="ENO">

<position x="355" y="480"/>

<position x="215" y="480"/>

</connection>

</connectionPointIn>

</variable>

<variable formalParameter="IN">

<connectionPointIn>

<relPosition x="0" y="50"/>

<connection refLocalId="33">

<position x="355" y="500"/>

<position x="320" y="500"/>

</connection>

</connectionPointIn>

</variable>

</inputVariables>

<inOutVariables/>

<outputVariables>

<variable formalParameter="ENO">

<connectionPointOut>

<relPosition x="145" y="30"/>

</connectionPointOut>

</variable>

<variable formalParameter="OUT">

<connectionPointOut>

<relPosition x="145" y="50"/>

</connectionPointOut>

</variable>

</outputVariables>

</block>

<block localId="36" width="125" height="90" typeName="python_poll" instanceName="setSpinCtrlValue" executionOrderId="0">

<position x="735" y="425"/>

<inputVariables>

<variable formalParameter="TRIG">

<connectionPointIn>

<relPosition x="0" y="35"/>

<connection refLocalId="34" formalParameter="ENO">

<position x="735" y="460"/>

<position x="685" y="460"/>

</connection>

</connectionPointIn>

</variable>

<variable formalParameter="CODE">

<connectionPointIn>

<relPosition x="0" y="70"/>

<connection refLocalId="34" formalParameter="OUT">

<position x="735" y="495"/>

<position x="715" y="495"/>

<position x="715" y="480"/>

<position x="685" y="480"/>

</connection>

</connectionPointIn>

</variable>

</inputVariables>

<inOutVariables/>

<outputVariables>

<variable formalParameter="ACK">

<connectionPointOut>

<relPosition x="125" y="35"/>

</connectionPointOut>

</variable>

<variable formalParameter="RESULT">

<connectionPointOut>

<relPosition x="125" y="70"/>

</connectionPointOut>

</variable>

</outputVariables>

</block>

<block localId="37" width="125" height="45" typeName="INT_TO_BOOL" executionOrderId="0">

<position x="870" y="255"/>

<inputVariables>

<variable formalParameter="IN">

<connectionPointIn>

<relPosition x="0" y="30"/>

<connection refLocalId="30" formalParameter="OUT">

<position x="870" y="285"/>

<position x="815" y="285"/>

</connection>

</connectionPointIn>

</variable>

</inputVariables>

<inOutVariables/>

<outputVariables>

<variable formalParameter="OUT">

<connectionPointOut>

<relPosition x="125" y="30"/>

</connectionPointOut>

</variable>

</outputVariables>

</block>

<block localId="38" width="80" height="95" typeName="AND" executionOrderId="0">

<position x="1050" y="210"/>

<inputVariables>

<variable formalParameter="IN1">

<connectionPointIn>

<relPosition x="0" y="40"/>

<connection refLocalId="30" formalParameter="ENO">

<position x="1050" y="250"/>

<position x="815" y="250"/>

</connection>

</connectionPointIn>

</variable>

<variable formalParameter="IN2">

<connectionPointIn>

<relPosition x="0" y="75"/>

<connection refLocalId="37" formalParameter="OUT">

<position x="1050" y="285"/>

<position x="995" y="285"/>

</connection>

</connectionPointIn>

</variable>

</inputVariables>

<inOutVariables/>

<outputVariables>

<variable formalParameter="OUT">

<connectionPointOut>

<relPosition x="80" y="40"/>

</connectionPointOut>

</variable>

</outputVariables>

</block>

<inVariable localId="39" height="30" width="60" executionOrderId="0" negated="false">

<position x="30" y="485"/>

<connectionPointOut>

<relPosition x="60" y="15"/>

</connectionPointOut>

<expression>INT#1</expression>

</inVariable>

<comment localId="101" height="115" width="680">

<position x="10" y="30"/>

<content>

<xhtml:p><![CDATA[This example shows how IEC program in PLC can interact with UI created using wxGlade.

"WxGlade GUI" is extension to build user interface for PLC using wxGlade.

To edit user interface click on "WxGlade" icon in extension settings.]]></xhtml:p>

</content>

</comment>

</FBD>

</body>

</pou>

</pous>

</types>

<instances>

<configurations>

<configuration name="config">

<resource name="res_pytest">

<task name="pytest_task" interval="t#100ms" priority="0"/>

<pouInstance name="pytest_instance" typeName="main_pytest"/>

</resource>

</configuration>

</configurations>

</instances>

</project>