uwmulti-stack-controller.h

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//
// Copyright (c) 2014 Regents of the SIGNET lab, University of Padova.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
// 3. Neither the name of the University of Padova (SIGNET lab) nor the
//    names of its contributors may be used to endorse or promote products
//    derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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#ifndef UWMULTI_STACK_CONTROLLER_H
#define UWMULTI_STACK_CONTROLLER_H
 
#include <map>
#include <module.h>
#include <packet.h>
#include <rng.h>
#include <tclcl.h>
 
#include "controller-clmsg.h"
#include <climits>
#include <cmath>
#include <iostream>
#include <string.h>
 
typedef std::map<int, double>
        ThresMap; 
typedef std::map<int, ThresMap> ThresMatrix; 
class UwMultiStackController : public Module
{
 
public:
    // constant definitions
    static int const layer_not_exist; 
    UwMultiStackController();
 
    virtual ~UwMultiStackController()
    {
    }
 
    virtual int command(int, const char *const *);
 
    virtual void addLayer(int id, int order);
 
    virtual void addThreshold(int i, int j, double thres_ij);
 
    virtual void recv(Packet *p);
 
    int inline getOrder(int layer_id)
    {
        return id2order.find(layer_id) == id2order.end()
                ? UwMultiStackController::layer_not_exist
                : id2order.find(layer_id)->second;
    }
 
    int inline getId(int layer_order)
    {
        return order2id.find(layer_order) == order2id.end()
                ? UwMultiStackController::layer_not_exist
                : order2id.find(layer_order)->second;
    }
 
protected:
    // Variables
    enum Mode {
        UW_MANUAL_SWITCH = 0, 
        UW_AUTOMATIC_SWITCH 
    };
 
    int debug_; 
    double min_delay_;
    Mode switch_mode_; 
    int lower_id_active_; 
    std::map<int, int> id2order; 
    ThresMatrix threshold_map; 
    std::map<int, int>
            order2id; 
    int signaling_pktSize_; 
    virtual void recvFromUpperLayers(Packet *p);
 
    virtual inline int
    getBestLayer(Packet *p)
    {
        assert(switch_mode_ == UW_AUTOMATIC_SWITCH);
        return lower_id_active_;
    }
 
    virtual bool isLayerAvailable(int id);
 
    virtual double getMetricFromSelectedLowerLayer(int id, Packet *p);
 
    virtual bool getThreshold(int i, int j, double &thres_ij);
 
    virtual void eraseThreshold(int i, int j);
 
    void inline setThreshold(int i, int j, double thres_ij)
    {
        threshold_map[i][j] = thres_ij;
    }
 
private:
    // Variables
};
 
#endif /* UWMULTI_STACK_CONTROLLER_H  */