traffic-control-helper.h

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/*
 * Copyright (c) 2015 Universita' degli Studi di Napoli Federico II
 *
 * 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: Stefano Avallone <stavallo@unina.it>
 */
#ifndef TRAFFIC_CONTROL_HELPER_H
#define TRAFFIC_CONTROL_HELPER_H
 
#include "queue-disc-container.h"
 
#include "ns3/net-device-container.h"
#include "ns3/object-factory.h"
#include "ns3/queue.h"
 
#include <map>
#include <string>
#include <vector>
 
namespace ns3
{
 
class QueueDiscFactory
{
  public:
    QueueDiscFactory(ObjectFactory factory);
 
    virtual ~QueueDiscFactory()
    {
    }
 
    // Delete default constructor to avoid misuse
    QueueDiscFactory() = delete;
 
    void AddInternalQueue(ObjectFactory factory);
 
    void AddPacketFilter(ObjectFactory factory);
 
    uint16_t AddQueueDiscClass(ObjectFactory factory);
 
    void SetChildQueueDisc(uint16_t classId, uint16_t handle);
 
    Ptr<QueueDisc> CreateQueueDisc(const std::vector<Ptr<QueueDisc>>& queueDiscs);
 
  private:
    ObjectFactory m_queueDiscFactory;
    std::vector<ObjectFactory> m_internalQueuesFactory;
    std::vector<ObjectFactory> m_packetFiltersFactory;
    std::vector<ObjectFactory> m_queueDiscClassesFactory;
    std::map<uint16_t, uint16_t> m_classIdChildHandleMap;
};
 
class TrafficControlHelper
{
  public:
    TrafficControlHelper();
 
    virtual ~TrafficControlHelper()
    {
    }
 
    static TrafficControlHelper Default(std::size_t nTxQueues = 1);
 
    template <typename... Args>
    uint16_t SetRootQueueDisc(const std::string& type, Args&&... args);
 
    template <typename... Args>
    void AddInternalQueues(uint16_t handle, uint16_t count, std::string type, Args&&... args);
 
    template <typename... Args>
    void AddPacketFilter(uint16_t handle, const std::string& type, Args&&... args);
 
    typedef std::vector<uint16_t> ClassIdList;
 
    template <typename... Args>
    ClassIdList AddQueueDiscClasses(uint16_t handle,
                                    uint16_t count,
                                    const std::string& type,
                                    Args&&... args);
 
    template <typename... Args>
    uint16_t AddChildQueueDisc(uint16_t handle,
                               uint16_t classId,
                               const std::string& type,
                               Args&&... args);
 
    typedef std::vector<uint16_t> HandleList;
 
    template <typename... Args>
    HandleList AddChildQueueDiscs(uint16_t handle,
                                  const ClassIdList& classes,
                                  const std::string& type,
                                  Args&&... args);
 
    template <typename... Args>
    void SetQueueLimits(std::string type, Args&&... args);
 
    QueueDiscContainer Install(NetDeviceContainer c);
 
    QueueDiscContainer Install(Ptr<NetDevice> d);
 
    void Uninstall(NetDeviceContainer c);
 
    void Uninstall(Ptr<NetDevice> d);
 
  private:
    uint16_t DoSetRootQueueDisc(ObjectFactory factory);
 
    void DoAddInternalQueues(uint16_t handle, uint16_t count, ObjectFactory factory);
 
    void DoAddPacketFilter(uint16_t handle, ObjectFactory factory);
 
    ClassIdList DoAddQueueDiscClasses(uint16_t handle, uint16_t count, ObjectFactory factory);
 
    uint16_t DoAddChildQueueDisc(uint16_t handle, uint16_t classId, ObjectFactory factory);
 
    HandleList DoAddChildQueueDiscs(uint16_t handle,
                                    const ClassIdList& classes,
                                    ObjectFactory factory);
 
    std::vector<QueueDiscFactory> m_queueDiscFactory;
    std::vector<Ptr<QueueDisc>> m_queueDiscs;
    ObjectFactory m_queueLimitsFactory;
};
 
} // namespace ns3
 
/***************************************************************
 *  Implementation of the templates declared above.
 ***************************************************************/
 
namespace ns3
{
 
template <typename... Args>
uint16_t
TrafficControlHelper::SetRootQueueDisc(const std::string& type, Args&&... args)
{
    return DoSetRootQueueDisc(ObjectFactory(type, args...));
}
 
template <typename... Args>
void
TrafficControlHelper::AddInternalQueues(uint16_t handle,
                                        uint16_t count,
                                        std::string type,
                                        Args&&... args)
{
    QueueBase::AppendItemTypeIfNotPresent(type, "QueueDiscItem");
    DoAddInternalQueues(handle, count, ObjectFactory(type, args...));
}
 
template <typename... Args>
void
TrafficControlHelper::AddPacketFilter(uint16_t handle, const std::string& type, Args&&... args)
{
    DoAddPacketFilter(handle, ObjectFactory(type, args...));
}
 
template <typename... Args>
TrafficControlHelper::ClassIdList
TrafficControlHelper::AddQueueDiscClasses(uint16_t handle,
                                          uint16_t count,
                                          const std::string& type,
                                          Args&&... args)
{
    return DoAddQueueDiscClasses(handle, count, ObjectFactory(type, args...));
}
 
template <typename... Args>
uint16_t
TrafficControlHelper::AddChildQueueDisc(uint16_t handle,
                                        uint16_t classId,
                                        const std::string& type,
                                        Args&&... args)
{
    return DoAddChildQueueDisc(handle, classId, ObjectFactory(type, args...));
}
 
template <typename... Args>
TrafficControlHelper::HandleList
TrafficControlHelper::AddChildQueueDiscs(uint16_t handle,
                                         const ClassIdList& classes,
                                         const std::string& type,
                                         Args&&... args)
{
    return DoAddChildQueueDiscs(handle, classes, ObjectFactory(type, args...));
}
 
template <typename... Args>
void
TrafficControlHelper::SetQueueLimits(std::string type, Args&&... args)
{
    m_queueLimitsFactory.SetTypeId(type);
    m_queueLimitsFactory.Set(args...);
}
 
} // namespace ns3
 
#endif /* TRAFFIC_CONTROL_HELPER_H */