21 #ifndef CHANNEL_ACCESS_MANAGER_H
22 #define CHANNEL_ACCESS_MANAGER_H
26 #include "ns3/event-id.h"
27 #include "ns3/nstime.h"
34 class FrameExchangeManager;
296 typedef std::vector<Ptr<Txop>>
Txops;
Manage a set of ns3::Txop.
Time MostRecent(std::initializer_list< Time > list) const
Return the most recent time.
void AccessTimeout(void)
Called when access timeout should occur (e.g.
virtual ~ChannelAccessManager()
bool m_off
flag whether it is in off state
void NotifyRxStartNow(Time duration)
void UpdateBackoff(void)
Update backoff slots for all Txops.
Time m_lastRxStart
the last receive start time
Time GetBackoffEndFor(Ptr< Txop > txop)
Return the time when the backoff procedure ended (or will ended) for the given Txop.
void DoDispose(void) override
Destructor implementation.
bool m_lastRxReceivedOk
the last receive OK
void NotifyCtsTimeoutResetNow(void)
Notify that CTS timer has reset.
void NotifyOnNow(void)
Notify the Txop that the device has been resumed from off mode.
Ptr< WifiPhy > m_phy
pointer to the PHY
void NotifyTxStartNow(Time duration)
Time m_lastRxDuration
the last receive duration time
void DoRestartAccessTimeoutIfNeeded(void)
Time m_lastSwitchingDuration
the last switching duration time
Time m_lastSwitchingStart
the last switching start time
Time m_lastAckTimeoutEnd
the last Ack timeout end time
Time m_eifsNoDifs
EIFS no DIFS time.
void NotifyAckTimeoutStartNow(Time duration)
Notify that ack timer has started for the given duration.
bool m_sleeping
flag whether it is in sleeping state
void NotifyRxEndOkNow(void)
Notify the Txop that a packet reception was just completed successfully.
void SetupFrameExchangeManager(Ptr< FrameExchangeManager > feManager)
Set up the Frame Exchange Manager.
void NotifyCtsTimeoutStartNow(Time duration)
Notify that CTS timer has started for the given duration.
void RequestAccess(Ptr< Txop > txop)
Time m_lastTxStart
the last transmit start time
bool IsBusy(void) const
Check if the device is busy sending or receiving, or NAV or CCA busy.
void NotifyMaybeCcaBusyStartNow(Time duration)
void RemovePhyListener(Ptr< WifiPhy > phy)
Remove current registered listener for PHY events.
void NotifySleepNow(void)
Notify the Txop that the device has been put in sleep mode.
void SetupPhyListener(Ptr< WifiPhy > phy)
Set up listener for PHY events.
Time m_lastCtsTimeoutEnd
the last CTS timeout end time
void NotifyWakeupNow(void)
Notify the Txop that the device has been resumed from sleep mode.
Ptr< FrameExchangeManager > m_feManager
pointer to the Frame Exchange Manager
void NotifyOffNow(void)
Notify the Txop that the device has been put in off mode.
Time m_lastBusyStart
the last busy start time
Time m_lastNavDuration
the last NAV duration time
PhyListener * m_phyListener
the PHY listener
virtual Time GetSlot(void) const
Return the slot duration for this PHY.
std::vector< Ptr< Txop > > Txops
typedef for a vector of Txops
void NotifySwitchingStartNow(Time duration)
void DisableEdcaFor(Ptr< Txop > qosTxop, Time duration)
void DoGrantDcfAccess(void)
Grant access to Txop using DCF/EDCF contention rules.
Txops m_txops
the vector of managed Txops
Time m_lastTxDuration
the last transmit duration time
virtual Time GetSifs(void) const
Return the Short Interframe Space (SIFS) for this PHY.
Time m_lastBusyDuration
the last busy duration time
void NotifyAckTimeoutResetNow(void)
Notify that ack timer has reset.
void NotifyNavResetNow(Time duration)
Time GetAccessGrantStart(bool ignoreNav=false) const
Access will never be granted to the medium before the time returned by this method.
bool NeedBackoffUponAccess(Ptr< Txop > txop)
Determine if a new backoff needs to be generated when a packet is queued for transmission.
virtual Time GetEifsNoDifs(void) const
Return the EIFS duration minus a DIFS.
void Add(Ptr< Txop > txop)
Time GetBackoffStartFor(Ptr< Txop > txop)
Return the time when the backoff procedure started for the given Txop.
Time m_lastNavStart
the last NAV start time
void NotifyNavStartNow(Time duration)
EventId m_accessTimeout
the access timeout ID
void NotifyRxEndErrorNow(void)
Notify the Txop that a packet reception was just completed unsuccessfully.
An identifier for simulation events.
A base class which provides memory management and object aggregation.
Simulation virtual time values and global simulation resolution.
Every class exported by the ns3 library is enclosed in the ns3 namespace.