Closing A SOAP Connection

Question

I've made soap connection to a server and the server doesn't seem to be dropping that connection, in netstat the status of the connection is listed as CLOSE WAIT.

I'm told that the client that created the soap connection has to send a command to the server to close the connection. Can anyone tell me the correct way to do this in C#? Below is an example piece of code.

SOAPServer.Service Soap = new SOAPServer.Service(); // SOAPServer is a web reference
Soap.Timeout = 30000;
string[] SOAPReturnResult = Soap.DepotData(100, "Test");
Soap.Dispose();

Thanks

Answer 1

Wrap it in a using block.

using (SOAPServer.Service Soap = new SOAPServer.Service())
{
Soap.Timeout = 30000;
string[] SOAPReturnResult = Soap.DepotData(100, "Test");
}

Note that this only marks the connection as closed. It might still show up as open via netstat even for a little time after the connection has been closed.

Answer 2

CLOSE WAIT state means that the server received a TCP-FIN from your client (i.e. a passive close), the server has to close its socket (send TCP-FIN to the client) in order to get the server socket out of CLOSE WAIT state. So this may not necessary be a problem on the client side but on the server side where the server socket does not get closed correctly.

What does it look like on the client side? FIN-WAIT-1 or FIN-WAIT-2 could indicate this may be the issue.