ClientBroker.h

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Library General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * ClientBroker.h
 * The client broker exists to handle the case where a client may disconnect
 * while a RDM call is in flight. When the call completes, the client broker
 * will detect that the client has disconnected and not run the callback (which
 * would now point to an invalid memory location).
 * Copyright (C) 2010 Simon Newton
 */

#ifndef OLAD_CLIENTBROKER_H_
#define OLAD_CLIENTBROKER_H_

#include <set>
#include <string>
#include <vector>
#include "ola/rdm/RDMCommand.h"
#include "ola/rdm/RDMControllerInterface.h"
#include "ola/Callback.h"
#include "olad/Universe.h"
#include "olad/Client.h"

namespace ola {

class ClientBroker {
 public:
 ClientBroker() {}
 ~ClientBroker() {}

 void AddClient(const Client *client);
 void RemoveClient(const Client *client);

 void SendRDMRequest(const Client *client,
 Universe *universe,
 const ola::rdm::RDMRequest *request,
 ola::rdm::RDMCallback *callback);

 private:
 ClientBroker(const ClientBroker&);
 ClientBroker& operator=(const ClientBroker&);

 void RequestComplete(const Client *key,
 ola::rdm::RDMCallback *callback,
 ola::rdm::rdm_response_code code,
 const ola::rdm::RDMResponse *response,
 const std::vector<std::string> &packets);

 typedef std::set<const Client*> client_set;
 client_set m_clients;
};
} // namespace ola
#endif // OLAD_CLIENTBROKER_H_