15 changes: 15 additions & 0 deletions src/internet/model/tcp-socket-base.h
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Expand Up @@ -33,6 +33,8 @@
#include "ns3/ipv6-header.h"
#include "ns3/ipv6-interface.h"
#include "ns3/event-id.h"
#include "ns3/data-rate.h"
#include "ns3/timer.h"
#include "tcp-tx-buffer.h"
#include "tcp-rx-buffer.h"
#include "rtt-estimator.h"
Expand Down Expand Up @@ -167,6 +169,11 @@ class TcpSocketState : public Object
uint32_t m_rcvTimestampValue; //!< Receiver Timestamp value
uint32_t m_rcvTimestampEchoReply; //!< Sender Timestamp echoed by the receiver

// Pacing related variables
bool m_pacing; //!< Pacing status
DataRate m_maxPacingRate; //!< Max Pacing rate
DataRate m_currentPacingRate; //!< Current Pacing rate

/**
* \brief Get cwnd in segments rather than bytes
*
Expand Down Expand Up @@ -1071,6 +1078,11 @@ class TcpSocketBase : public TcpSocket
*/
static uint32_t SafeSubtraction (uint32_t a, uint32_t b);

/**
* \brief Notify Pacing
*/
void NotifyPacingPerformed (void);

protected:
// Counters and events
EventId m_retxEvent; //!< Retransmission event
Expand Down Expand Up @@ -1158,6 +1170,9 @@ class TcpSocketBase : public TcpSocket

TracedCallback<Ptr<const Packet>, const TcpHeader&,
Ptr<const TcpSocketBase> > m_rxTrace; //!< Trace of received packets

// Pacing related variable
Timer m_pacingTimer; //!< Pacing Event
};

/**
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