torc/router/NetRouterBase.hpp

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// Torc - Copyright 2011 University of Southern California.  All Rights Reserved.
// $HeadURL: https://torc-isi.svn.sourceforge.net/svnroot/torc-isi/branches/staging/0.9/src/torc/router/NetRouterBase.hpp $
// $Id: NetRouterBase.hpp 1 2011-02-25 22:11:16Z nsteiner $

// 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 3 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 General Public License for more details.
// 
// You should have received a copy of the GNU General Public License along with this program.  If 
// not, see <http://www.gnu.org/licenses/>.

/// \file
/// \brief Header for the BasicRouter class.

#ifndef TORC_ROUTER_NETROUTERBASE_HPP
#define TORC_ROUTER_NETROUTERBASE_HPP

#include "torc/architecture/DDB.hpp"
#include "torc/router/RouteNode.hpp"
#include "torc/router/NetRouterHeuristicBase.hpp"
#include "torc/router/RouteNet.hpp"

#include "torc/architecture/OutputStreamHelpers.hpp"
#include <set>
#include <iostream>
#include <algorithm>
#include <queue>
#include <boost/cstdint.hpp>
#include <boost/timer.hpp>
#include <boost/unordered_map.hpp>
#include <boost/functional/hash.hpp>
#include "NetRouterHeuristicBase.hpp"

namespace torc {
namespace router {

    /// \brief Abstract class for a net router.
    /// \details This base class provides a virtual route function.
    class NetRouterBase {
    // types
        /// \brief Imported type names
        typedef architecture::DDB DDB;
        typedef architecture::WireUsage WireUsage;
        typedef architecture::Tilewire Tilewire;
        
    protected:
    // members
        /// \brief Database reference.
        DDB& mDB;
        /// \brief Pointer to the heuristic for making routing decisions.
        NetRouterHeuristicBase* mHeuristic;
        /// \brief Timer object for performance analysis.
        boost::timer mRouteTimer;
        /// \brief Total routing time since construction.
        double mTotalRouteTime;

    public:
    // constructor
        /// \brief Public Constructor
        NetRouterBase(DDB& inDB, NetRouterHeuristicBase* inHeuristic) : mDB(inDB), 
            mHeuristic(inHeuristic) {
            mTotalRouteTime = 0;
        }
        /// \brief Destructor.
        virtual ~NetRouterBase() {}

        /// \brief Primary route call.
        void route(RouteNet& inNet) {
            mRouteTimer.restart();
            routeNet(inNet);
            double routeTime = mRouteTimer.elapsed();
            mTotalRouteTime += routeTime;
            inNet.mProperties[eRouteTime] = routeTime;
        }
        
        /// \brief Get total route time.
        double getTotalRouteTime() { return mTotalRouteTime; }
        /// \brief Get the current heuristic.
        NetRouterHeuristicBase* getHeuristic() { return mHeuristic; }
        /// \brief Set the current heuristic.
        void setHeuristic(NetRouterHeuristicBase* inHeuristic) { mHeuristic = inHeuristic; }
        
    protected:
        /// \brief Virtual route call.
        virtual void routeNet(RouteNet& inNet) = 0;
    }; // class SignalRouterBase
    

} // namespace router
} // namespace torc

#endif // TORC_ROUTER_NETROUTERBASE_HPP

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