private void ShutdownPipeServer()
{
// Ask the named pipe server to stop itself gracefully. This is required so that a listening thread isnt waiting for connections which will prevent shutdown of this service
// Basically this will be the last connection it will accept. Start the service to being again or call StartNamePipeServer()
var pipeClient = new NamedPipeClientStream(".", StringConstants.TechServicePipeName, PipeDirection.InOut, PipeOptions.WriteThrough, TokenImpersonationLevel.Impersonation);
pipeClient.Connect();
ServiceBrokerProtocolHelper.SendRequest(new Request {
RequestTask = RequestTask.StopNamedPipeServer
}, pipeClient, (function, message) => LogMessage(message, EventLogEntryType.Information));
}
/// <summary>
/// Sends a synchonous/blocking message to the Tech service.
/// </summary>
/// <param name="request">The request.</param>
/// <remarks>This function blocks until it can connect to the Tech service, ie it waits until the server can make the connection.</remarks>
/// <returns>A response from the service</returns>
public Response SendMessage(Request request)
{
// This lock ensures that no other client thread can connect until we're done this function(which includes this function getting a valid response first)
lock (ThreadLock)
{
LogMessage(MethodBase.GetCurrentMethod().Name, "Sending message to service...");
var pipeClient = new NamedPipeClientStream(".", StringConstants.TechServicePipeName, PipeDirection.InOut, PipeOptions.WriteThrough, TokenImpersonationLevel.Impersonation);
LogMessage(MethodBase.GetCurrentMethod().Name, "Waiting to connect to service...");
pipeClient.Connect();
LogMessage(MethodBase.GetCurrentMethod().Name, "Connected to service.");
return(ServiceBrokerProtocolHelper.SendRequest(request, pipeClient, LogMessage));
}
}
