Semaphore Error on NRTSession

System

Hello Techies--
With an error like: "_message"[NRTSession ][Login ]Logging in as \"mem_admin\" : The semaphore is set and cannot be closed. "
I know that I'm in the thick of things now!;-) Just for the record, I do not have another session to the DMS active before logging into this session.

Have any of you seen this error? If so, all advice will be greatly appreciated!

----------------------------------------------- code snippet-------------------------------------------------------------------------

private string testMethodAdmin()
{

try
{
IMANADMIN.NRTDMS dms = new IMANADMIN.NRTDMSClass();

string serverName = "MDD_SERVER_NAME";


IMANADMIN.NRTSessions allSessions = dms.Sessions;

//NOTE: This code generates a compile error WITHOUT the nulls
// allSessions.Add(serverName);

//Exact ERROR: "C:\development\source\CSharp-Experiments\CMSConversion\Form1.cs(1177):
// No overload for method 'Add' takes '1' arguments"
//Note: Intellisense claims the method is looking for:
// IMANADMIN.NRTSession INRTSessions.Add(string ServerName, object Before, object After)
// Question: What does "object Before and object After" mean in this context? The example given for
// usage is in VB and uses only the ServerName, shown in the line that gets the overload
// complaint.

allSessions.Add(serverName,null,null); // compiles, but...

IMANADMIN.NRTSession adminSession = allSessions.Item(1);

adminSession.Login("NRTadminUser","somepassword");

.
.
.

strResult = "OK";

}
catch (Exception error)
{
Utility.ReportErrors(error);
strResult = "Operation failed";
return strResult;
}
return strResult;
}



Paula DiTallo - Middleware Architect/ .NET Developer
plditallo@metro-design-dev.com

jny

The Before/After arguments are optional, and they are used for ordering the session objects added to the sessions collection. For example, if you have a connected session, sess1, and you would like to add sess2 as the item that comes before sess1 to the same NRTSessions, you would then put the sess1 as the value in the Before argument. This is generally ignored by simply passing in null/null in C++/C#. In VB, they can be completely skipped since they are optional.

These two arguments only except VARIANT which makes it a bit difficult to pass in in C#. I haven't figured out a way to do this correctly and have tried with object datatype which should be a valid representation of a VARIANT. (So please fyi if you have a chance to figure it out.)

In VB, this is easy to do:

[VB]
Dim dms As New NRTDMS
Dim newSess As NRTSession
Dim beforeSess As Variant
' Assuming beforeSess is a valid session

Set newSess = dms.Sessions.Add("myserver", beforeSess)
...