/* -*-    Mode:C++; c-basic-offset:4; tab-width:4; indent-tabs-mode:nil -*- */

/*

 * Copyright (c) 2005,2006 INRIA

 * All rights reserved.

 *

 * 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

 */

#ifndef PCAP_WRITER_H

#define PCAP_WRITER_H

#include "ns3/callback.h"

#include <stdint.h>

#include "packet.h"

namespace ns3 {

class SystemFile;

/**

 * \brief Pcap output for Packet logger

 *

 * Log Packets to a file in pcap format which can be

 * read by pcap readers.

 */

class PcapWriter {

public:

    PcapWriter ();

    ~PcapWriter ();

    /**

     * \param name the name of the file to store packet log into.

     * This method creates the file if it does not exist. If it

     * exists, the file is emptied.

     */

    /**

     * Write a pcap header in the output file which specifies

     * that the content of the file will Packets with

     * Ethernet/LLC/SNAP encapsulation. This method should

     * be invoked before ns3::PcapWriter::writePacket and after

     * ns3::PcapWriter::open.

     */

    /**

     * \param packet packet to write to output file

     */

private:

    SystemFile *m_writer;

    Callback<void,uint8_t *,uint32_t> m_writeCallback;

};

}; // namespace ns3

#endif /* PCAP_WRITER_H */