flame-protocol-mac.h

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/*
 * Copyright (c) 2009 IITP RAS
 *
 * SPDX-License-Identifier: GPL-2.0-only
 *
 * Author: Kirill Andreev <andreev@iitp.ru>
 */
 
#ifndef FLAME_PROTOCOL_MAC_H
#define FLAME_PROTOCOL_MAC_H
 
#include "ns3/mesh-wifi-interface-mac.h"
 
namespace ns3
{
namespace flame
{
class FlameProtocol;
 
/**
 * \ingroup flame
 *
 * \brief Interface MAC plugin for FLAME routing protocol
 */
class FlameProtocolMac : public MeshWifiInterfaceMacPlugin
{
  public:
    /**
     * Constructor
     *
     * \param protocol flame protocol object
     */
    FlameProtocolMac(Ptr<FlameProtocol> protocol);
    ~FlameProtocolMac() override;
 
    // Inherited from MAC plugin
    /**
     * Set parent of this instance
     * \param parent pointer to the parent MeshWifiInterfaceMac
     */
    void SetParent(Ptr<MeshWifiInterfaceMac> parent) override;
    /**
     * Receive and process a packet; packets are given a FlameTag packet tag
     * \param packet the packet received
     * \param header the header
     * \returns true if successful
     */
    bool Receive(Ptr<Packet> packet, const WifiMacHeader& header) override;
    /**
     * Process an outgoing frame.  Remove the FlameTag and increment stats
     * counters.
     * \param packet the packet received
     * \param header the header
     * \param from the MAC address of the sender
     * \param to the MAC address of the receiver
     * \returns true if successful
     */
    bool UpdateOutcomingFrame(Ptr<Packet> packet,
                              WifiMacHeader& header,
                              Mac48Address from,
                              Mac48Address to) override;
    /**
     * Update beacon is empty, because FLAME does not know anything about beacons
     * \param beacon the beacon
     */
    void UpdateBeacon(MeshWifiBeacon& beacon) const override{};
 
    /**
     * AssignStreams is empty, because this model doesn't use random variables
     * \param stream
     * \returns 0 (no streams used)
     */
    int64_t AssignStreams(int64_t stream) override
    {
        return 0;
    }
 
    /**
     * Get channel ID function
     * \returns the channel
     */
    uint16_t GetChannelId() const;
    /**
     * Report statistics
     * \param os the output stream
     */
    void Report(std::ostream& os) const;
    /// Reset statistics function
    void ResetStats();
 
  private:
    // MeshPointDevice parameters:
    Ptr<FlameProtocol> m_protocol;      ///< protocol
    Ptr<MeshWifiInterfaceMac> m_parent; ///< parent
 
    /// Statistics structure
    struct Statistics
    {
        uint16_t txUnicast;   ///< transmit unicast
        uint16_t txBroadcast; ///< transit broadcast
        uint32_t txBytes;     ///< transmit bytes
        uint16_t rxUnicast;   ///< receive unicast
        uint16_t rxBroadcast; ///< receive broadcast
        uint32_t rxBytes;     ///< receive bytes
 
        /**
         * Print function
         * \param os the output stream
         */
        void Print(std::ostream& os) const;
        /// constructor
        Statistics();
    };
 
    Statistics m_stats; ///< statistics
};
} // namespace flame
} // namespace ns3
#endif /* FLAME_PROTOCOL_MAC_H */