System.AccessViolationException on listener set.

[MarcoRoccagliSigma]

Hi, I'm attemping to set a datareader listener to inbuilt topic "DCPSParticipant" and while executing the setlistener method, i receive the AccessViolationException. Here there is the snippet code that i'm trying to use:

static void Main(string[] args) { Ace.Init();

        DomainParticipantFactory dpf = ParticipantService.Instance.GetDomainParticipantFactory("-DCPSConfigFile", "rtps.ini");
        DomainParticipant participant = dpf.CreateParticipant(42);
        if (participant == null)
        {
            throw new Exception("Could not create the participant");
        }

        // Include your program here

        TestExample.TestTypeSupport testsupport= new TestExample.TestTypeSupport();
        testsupport.RegisterType(participant, testsupport.GetTypeName());

        Topic topic = participant.CreateTopic("TestTopic", testsupport.GetTypeName());

        Publisher pub= participant.CreatePublisher();

        DataWriter dw = pub.CreateDataWriter(topic);
        TestExample.TestDataWriter tdw = new(dw);

        DataReader participantdr = participant.GetBuiltinSubscriber().LookupDataReader("DCPSParticipant");
        **participantdr.SetListener(new CustomDCPSParticipantListener());**

        while (true)
        {
            tdw.Write(new() { Key = 0, Message="Test" });
            System.Threading.Thread.Sleep(1000);
        }

        participant.DeleteContainedEntities();
        dpf.DeleteParticipant(participant);
        ParticipantService.Instance.Shutdown();

        Ace.Fini();
    }

Of course CustomDCPSParticipantListener extends from DataReaderListener. Any clue for this?

Thanks

[jmmorato]

I couldn't reproduce it with the latest 0.8.22323.102-beta version.

What version are you using?

[MarcoRoccagliSigma]

Hi using the 0.8.22127.96 that comes with standard .NET templates. Should i update to latest version?

[MarcoRoccagliSigma]

Just to inform that i updated at same version that you suggested and the problem persists.

[jmmorato]

Same for me but in the other way around, downgraded to your version and still couldn't reproduce the issue.

Could you share your full projects files please?

[MarcoRoccagliSigma]

That's a WeTransfer link because of size (around 140MB)

https://we.tl/t-kRT5P9MGXz

For your info, i'm using VS2022 forcing to compile to x64 (but i have the same issue forcing in x86)

[jmmorato]

I reproduced (only happens in windows) and fixed in #138, if all tests are successfully I will create a new beta version after merging.

PD:

That's a WeTransfer link because of size (around 140MB)

Next time remove bin, obj and .vs folders before zipping ;)

[MarcoRoccagliSigma]

Thanks i will try and let you know ASAP

[jmmorato]

Version 0.8.22349.103-beta has been published

[MarcoRoccagliSigma]

Tried this version and seems to work correctly. Thanks for fixing.