src/fetch-manager.h

/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
/*
 * Copyright (c) 2012-2013 University of California, Los Angeles
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * 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 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
 *
 * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
 *	   Zhenkai Zhu <zhenkai@cs.ucla.edu>
 */

#ifndef FETCH_MANAGER_H
#define FETCH_MANAGER_H

#include <boost/exception/all.hpp>
#include <boost/shared_ptr.hpp>
#include <string>
#include <stdint.h>
#include "scheduler.h"

#include "ccnx-wrapper.h"
#include "ccnx-tunnel.h"
#include "sync-log.h"

class FetchManager
{
  enum
    {
      PRIORITY_NORMAL,
      PRIORITY_HIGH
    };

public:
  FetchManager (Ccnx::CcnxWrapperPtr ccnx, SyncLogPtr sync);
  virtual ~FetchManager ();

  void
  Enqueue (const Ccnx::Name &deviceName,
           uint32_t minSeqNo, uint32_t maxSeqNo, int priority=PRIORITY_NORMAL);

  Ccnx::CcnxWrapperPtr
  GetCcnx ();

  SchedulerPtr
  GetScheduler ();
  
private:
  Ccnx::CcnxWrapperPtr m_ccnx;
  SyncLogPtr m_sync; // to access forwarding hints
  SchedulerPtr m_scheduler;
};


typedef boost::error_info<struct tag_errmsg, std::string> errmsg_info_str; 
namespace Error {
struct Fetcher : virtual boost::exception, virtual std::exception { };
}

typedef boost::shared_ptr<FetchManager> FetchManagerPtr;


#endif // FETCHER_H