#ifndef __MiscThread_h_
#define __MiscThread_h_

/* This class takes an XmlNode, formats it, and sends it out to the client.
 *
 * This was extracted from UserRequestControl.C and moved to its own thread
 * because it was taking too long.  In particular, a lot of database threads
 * were sitting idle while requests were late.  UserRequestControl.C was too
 * busy doing work to do a good job of dispatching work to other threads.
 *
 * The word "Misc" is used optimistically.  The DeferredXmlReply could be
 * used in other places.  And we may find other, unrelated, work which just
 * needs to be moved to another thread.  That could easily be added to this
 * thread.
 *
 * If you are looking at adding more functionality to this thread,
 * consider using ../shared/NewWorkerCluster.h instead.  After
 * several attempts that seems to be the best generic worker thread cluster.
 */

#include "../shared/Messages.h"
#include "../shared/XmlSupport.h"

class DeferedXmlReply : public Request
{
public:
  XmlNode _node;
  ExternalRequest::MessageId _messageId;
  void doWork();
  void send();
  DeferedXmlReply(SocketInfo *socket) :
    Request(socket)
  { }

  // This will destroy the original node using swap().
  static void send(SocketInfo *socket, XmlNode &node, 
		   ExternalRequest::MessageId messageId);
};

void initMiscThread();

#endif