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IDProjectCategoryView StatusDate SubmittedLast Update
0000666OMNeT++simulation kernelpublic2013-07-25 16:312013-07-25 16:31
Reporterrhornig 
Assigned To 
PrioritynormalSeverityminorReproducibilityalways
StatusnewResolutionopen 
PlatformOSOS Version
Product Version4.3 
Target VersionFixed in Version 
Summary0000666: Accessing volatile parameters in two-way connections causing runtime error
DescriptionWhen using the

gateA <--> {datarate = somevolatileparameter} <--> gateB

connection form, it is in fact a shorthand for

gateA$i <-- {datarate = somevolatileparameter} <-- gateB$o
gateA$o --> {datarate = somevolatileparameter} --> gateB$i

this means that 'somevolatileparameter' is accessed two times which may result in different values. The user intention is to have the same value.

It would be better if the channel would be created only once and then would be cloned for the opposite direction.
Additional InformationSee the following code as example:

network net
{
    parameters:
        volatile string areaType = default("Area_Type1");
        volatile double interAreaRate = select(intuniform(0, 1), 10Mbps,100Mbps);
    submodules:
       .....
        area[areas]: <areaType> like IArea { }
    connections:
    area[0].ethg++ <--> { datarate = interAreaRate; delay = 2.0ms; } <--> area[1].ethg++;
...
}
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Date Modified Username Field Change
2013-07-25 16:31 rhornig New Issue


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