@sviatoslav.bakaras

Thank you for the code.

The problem happens on Linux, but not on Windows.

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@sviatoslav.bakaras

I have modified the C++ IProv100 example in the RTSDK-2.0.1.L2.win.rrg (EMA 3.6.1.L2) package to creating a new OmmProvider after deleting the previous one. The code looks like this:

int main()
{
    try
    {
        AppClient appClient;
        while (true) {
            printf("Create OmmProvider\n");
            OmmProvider* provider = new OmmProvider(OmmIProviderConfig().port("14002"), appClient);
            itemHandle = 0;
            while (itemHandle == 0) sleep(1000);


            for (Int32 i = 0; i < 10; i++)
            {
                provider->submit(UpdateMsg().payload(FieldList().
                    addReal(22, 3391 + i, OmmReal::ExponentNeg2Enum).
                    addReal(30, 10 + i, OmmReal::Exponent0Enum).
                    complete()), itemHandle);


                sleep(1000);
            }
            printf("Delete OmmProvider\n");
            delete(provider);
            sleep(5000);
        };
        
    }
    catch ( const OmmException& excp )
    {
        cout << excp << endl;
    }
    
    return 0;
}

From my testing, the application can close and reopen TCP 14002 port properly.

Hi @sviatoslav.bakaras

On top of @jirapongse.phuriphanvichai answer, I also tested com.refinitiv.ema.examples.training.iprovider.series100.ex100_MP_Streaming on EMA Java.

And it works fine as well.

@jirapongse.phuriphanvichai @chavalit.jintamalit , thank you for your investigations!

I've also tried to reproduce this issue with a minimal code. Here it is, three simple steps, even without sending anything (modified IProv100):

Creating a OmmProvider object, destroying it and creating a new one on the same port.

Here is the output:

Creating provider

Deleting provider

Creating provider one more time

Exception Type='OmmInvalidUsageException', Text='Failed to initialize OmmServerBaseImpl (Unable to bind RSSL server).' Error Id='-1' Internal sysError='98' ..........

Worth to mention, I'm running a RHEL7 (Red Hat Enterprise Linux Server release 7.4 (Maipo)) and using Clang 10.0.1 compiler. (Also tried with GCC 4.8.5, but it's all the same).

I've also checked executable's syscalls with "strace" utility. There is a socket creation with "socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)", which returned "10", but there is no "close(10)" call after it to actually close it.

Debugging Ema's code gave no results too. All methods, used in d-tor, returned success code, but still no close(..) called.