satellite-request-manager.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2013 Magister Solutions Ltd.
 * Copyright (c) 2018 CNES
 *
 * 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: Jani Puttonen <jani.puttonen@magister.fi>
 * Author: Mathias Ettinger <mettinger@toulouse.viveris.com>
 */
 
#ifndef SATELLITE_REQUEST_MANAGER_H_
#define SATELLITE_REQUEST_MANAGER_H_
 
#include "satellite-control-message.h"
#include "satellite-enums.h"
#include "satellite-lower-layer-service.h"
#include "satellite-node-info.h"
#include "satellite-queue.h"
 
#include <ns3/callback.h>
#include <ns3/object.h>
 
#include <deque>
 
namespace ns3
{
 
class SatRequestManager : public Object
{
  public:
    SatRequestManager();
 
    virtual ~SatRequestManager();
 
    void Initialize(Ptr<SatLowerLayerServiceConf> llsConf, Time superFrameDuration);
 
    static TypeId GetTypeId(void);
 
    virtual TypeId GetInstanceTypeId(void) const;
 
    virtual void DoDispose();
 
    typedef Callback<SatQueue::QueueStats_t, bool> QueueCallback;
 
    typedef Callback<bool, Ptr<SatControlMessage>, const Address&> SendCtrlCallback;
 
    typedef Callback<bool> CtrlMsgTxPossibleCallback;
 
    typedef Callback<bool> LogonMsgTxPossibleCallback;
 
    typedef std::vector<std::deque<std::pair<Time, uint32_t>>> PendingRbdcRequestsContainer_t;
 
    void ReceiveQueueEvent(SatQueue::QueueEvent_t event, uint8_t rcIndex);
 
    void AddQueueCallback(uint8_t rcIndex, SatRequestManager::QueueCallback cb);
 
    void SetCtrlMsgCallback(SatRequestManager::SendCtrlCallback cb);
 
    void SetCtrlMsgTxPossibleCallback(SatRequestManager::CtrlMsgTxPossibleCallback cb);
 
    void SetLogonMsgTxPossibleCallback(SatRequestManager::LogonMsgTxPossibleCallback cb);
 
    void SetGwAddress(Mac48Address address);
 
    void SetNodeInfo(Ptr<SatNodeInfo> nodeInfo);
 
    void CnoUpdated(uint32_t satId,
                    uint32_t beamId,
                    Address sourceMac,
                    Address gwId,
                    double cno,
                    bool isSatelliteMac);
 
    void AssignedDaResources(uint8_t rcIndex, uint32_t bytes);
 
    typedef void (*CapacityRequestTraceCallback)(Time time,
                                                 Mac48Address address,
                                                 Ptr<SatCrMessage> message);
 
    typedef void (*CapacityRequestTraceLogCallback)(std::string traceLog);
 
    typedef void (*RbdcTraceCallback)(uint32_t requestSize);
 
    typedef void (*VbdcTraceCallback)(uint32_t requestSize);
 
    typedef void (*AvbdcTraceCallback)(uint32_t requestSize);
 
    void SendHandoverRecommendation(uint32_t beamId);
 
    void SendLogonMessage();
 
    void SetHeaderOffsetVbdc(double headerOffsetVbcd);
 
  private:
    typedef std::map<uint8_t, QueueCallback> CallbackContainer_t;
 
    void DoPeriodicalEvaluation();
 
    void DoEvaluation();
 
    uint32_t DoRbdc(uint8_t rc, const SatQueue::QueueStats_t& stats);
 
    uint32_t DoRbdcLegacy(uint8_t rc, const SatQueue::QueueStats_t& stats);
 
    SatEnums::SatCapacityAllocationCategory_t DoVbdc(uint8_t rc,
                                                     const SatQueue::QueueStats_t& stats,
                                                     uint32_t& rcVbdcBytes);
 
    SatEnums::SatCapacityAllocationCategory_t DoVbdcLegacy(uint8_t rc,
                                                           const SatQueue::QueueStats_t& stats,
                                                           uint32_t& rcVbdcBytes);
 
    uint32_t GetVbdcBytes(uint8_t rc, const SatQueue::QueueStats_t& stats);
 
    uint32_t GetAvbdcBytes(uint8_t rc, const SatQueue::QueueStats_t& stats);
 
    void CheckForVolumeBacklogPersistence();
 
    uint32_t GetPendingRbdcSumKbps(uint8_t rc);
 
    void UpdatePendingRbdcCounters(uint8_t rc, uint32_t kbps);
 
    void RemoveOldEntriesFromPendingRbdcContainer(uint8_t rc);
 
    void UpdatePendingVbdcCounters();
 
    void UpdatePendingVbdcCounters(uint8_t rc);
 
    void SendCapacityRequest(Ptr<SatCrMessage> crMsg);
 
    void SendCnoReport();
 
    void ResetAssignedResources();
 
    void Reset(uint8_t rc);
 
    uint16_t GetQuantizedRbdcValue(uint8_t index, uint16_t reqRbdcKbps) const;
 
    uint16_t GetQuantizedVbdcValue(uint8_t index, uint16_t reqVbdcBytes) const;
 
    CallbackContainer_t m_queueCallbacks;
 
    SendCtrlCallback m_ctrlCallback;
 
    CtrlMsgTxPossibleCallback m_ctrlMsgTxPossibleCallback;
 
    LogonMsgTxPossibleCallback m_logonMsgTxPossibleCallback;
 
    Mac48Address m_gwAddress;
 
    Mac48Address m_satAddress;
 
    double m_lastCno;
 
    double m_lastSatelliteCno;
 
    Ptr<SatLowerLayerServiceConf> m_llsConf;
 
    Time m_evaluationInterval;
 
    Time m_cnoReportInterval;
 
    EventId m_cnoReportEvent;
 
    double m_gainValueK;
 
    Time m_rttEstimate;
 
    double m_overEstimationFactor;
 
    bool m_enableOnDemandEvaluation;
 
    PendingRbdcRequestsContainer_t m_pendingRbdcRequestsKbps;
 
    std::vector<uint32_t> m_pendingVbdcBytes;
 
    std::vector<Time> m_previousEvaluationTime;
 
    Ptr<SatNodeInfo> m_nodeInfo;
 
    std::vector<uint32_t> m_assignedDaResourcesBytes;
 
    Time m_lastVbdcCrSent;
 
    Time m_superFrameDuration;
 
    bool m_forcedAvbdcUpdate;
 
    uint32_t m_numValues;
    static const uint32_t m_rbdcScalingFactors[4];
    static const uint32_t m_vbdcScalingFactors[4];
 
    TracedCallback<Time, Mac48Address, Ptr<SatCrMessage>> m_crTrace;
 
    TracedCallback<std::string> m_crTraceLog;
 
    TracedCallback<uint32_t> m_rbdcTrace;
    TracedCallback<uint32_t> m_vbdcTrace;
    TracedCallback<uint32_t> m_aVbdcTrace;
 
    SatEnums::RbdcCapacityRequestAlgorithm_t m_rbdcCapacityRequestAlgorithm;
 
    SatEnums::VbdcCapacityRequestAlgorithm_t m_vbdcCapacityRequestAlgorithm;
 
    double m_headerOffsetVbcd;
};
 
} // namespace ns3
 
#endif /* SATELLITE_REQUEST_MANAGER_H_ */