CODEWITHSUNDEEP
c#windowsetw
iluxa1810
iluxa1810

Reputation: 298

In Event Tracing for Windows (ETW), TraceEventSession don't catch read event from notepad

I use hits filters:

session.EnableKernelProvider(KernelTraceEventParser.Keywords.DiskFileIO |
                                             KernelTraceEventParser.Keywords.FileIOInit |
                                             KernelTraceEventParser.Keywords.FileIO);

I subscribe on DiskIORead and FileIORead events.

If I open the file through notepad, then the event does not occur.

However, if I open the file through notepad ++, then this happens.

UPD:

Full Code:

class Program
{
    static void Main(string[] args)
    {

        using(var session=new TraceEventSession("Test"))
        {
            session.EnableKernelProvider(KernelTraceEventParser.Keywords.DiskFileIO |
                                         KernelTraceEventParser.Keywords.FileIOInit |
                                         KernelTraceEventParser.Keywords.FileIO);


            session.Source.Kernel.FileIORead += Kernel_FileIORead;
            session.Source.Kernel.DiskIORead += Kernel_DiskIORead;
            session.Source.Process();
        }
    }

    private static void Kernel_FileIORead(Microsoft.Diagnostics.Tracing.Parsers.Kernel.FileIOReadWriteTraceData obj)
    {
        if (obj.FileName.ToUpper().StartsWith(@"E"))
        {
            Console.WriteLine("2:" + obj.FileName);
        }
    }

    private static void Kernel_DiskIORead(Microsoft.Diagnostics.Tracing.Parsers.Kernel.DiskIOTraceData obj)
    {
        if (obj.FileName.ToUpper().StartsWith(@"E"))
        {
            Console.WriteLine("2:"+obj.FileName);
        }
    }
}

I use Windows 10.

Upvotes: 2

Views: 1942

Answers (1)

Clint
Clint

Reputation: 6499

Add Source for FileIOQueryInfo like this

session.Source.Kernel.FileIOQueryInfo += Kernel_FileIOQuery;

Event Handler

private static void Kernel_FileIOQuery(FileIOInfoTraceData obj)
{
    if (obj.FileName.ToUpper().StartsWith(@"E"))
    {
        Console.WriteLine("queryInfo:" + obj.FileName);
    }
}


Note: Issue replicated by partitioning E:\

Tested it by opening a txt file in E:\ via notepad, wordpad.
Tested it by opening a word file in E:\ drive via MSWord

PS

If you want to filter by process then you can use obj.ProcessName == "notepad"

References

Highly Recommend going through this doc from GIT

Upvotes: 2

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