Socket logic for the NSC TCP sockets. More...

#include <nsc-tcp-socket-impl.h>

Inheritance diagram for ns3::NscTcpSocketImpl:

Collaboration diagram for ns3::NscTcpSocketImpl:

Public Member Functions
	NscTcpSocketImpl ()
	Create an unbound tcp socket. More...

	NscTcpSocketImpl (const NscTcpSocketImpl &sock)
	Clone a TCP socket, for use upon receiving a connection request in LISTEN state. More...

virtual	~NscTcpSocketImpl ()

virtual int	Bind (void)
	Allocate a local IPv4 endpoint for this socket. More...

virtual int	Bind (const Address &address)
	Allocate a local endpoint for this socket. More...

virtual int	Bind6 (void)
	Allocate a local IPv6 endpoint for this socket. More...

virtual int	Close (void)
	Close a socket. More...

virtual int	Connect (const Address &address)
	Initiate a connection to a remote host. More...

virtual bool	GetAllowBroadcast () const
	Query whether broadcast datagram transmissions are allowed. More...

virtual enum SocketErrno	GetErrno (void) const
	Get last error number. More...

virtual Ptr< Node >	GetNode (void) const
	Return the node this socket is associated with. More...

virtual uint32_t	GetRxAvailable (void) const
	Return number of bytes which can be returned from one or multiple calls to Recv. More...

virtual enum SocketType	GetSocketType (void) const

virtual int	GetSockName (Address &address) const
	Get socket address. More...

virtual uint32_t	GetTxAvailable (void) const
	Returns the number of bytes which can be sent in a single call to Send. More...

virtual int	Listen (void)
	Listen for incoming connections. More...

virtual Ptr< Packet >	Recv (uint32_t maxSize, uint32_t flags)
	Read data from the socket. More...

virtual Ptr< Packet >	RecvFrom (uint32_t maxSize, uint32_t flags, Address &fromAddress)
	Read a single packet from the socket and retrieve the sender address. More...

virtual int	Send (Ptr< Packet > p, uint32_t flags)
	Send data (or dummy data) to the remote host. More...

virtual int	SendTo (Ptr< Packet > p, uint32_t flags, const Address &toAddress)
	Send data to a specified peer. More...

virtual bool	SetAllowBroadcast (bool allowBroadcast)
	Configure whether broadcast datagram transmissions are allowed. More...

void	SetNode (Ptr< Node > node)
	Set the associated node. More...

void	SetTcp (Ptr< NscTcpL4Protocol > tcp)
	Set the associated TCP L4 protocol. More...

virtual int	ShutdownRecv (void)

virtual int	ShutdownSend (void)

Public Member Functions inherited from ns3::TcpSocket
	TcpSocket (void)

virtual	~TcpSocket (void)

Public Member Functions inherited from ns3::Socket
	Socket (void)

virtual	~Socket (void)

virtual void	BindToNetDevice (Ptr< NetDevice > netdevice)
	Bind a socket to specific device. More...

Ptr< NetDevice >	GetBoundNetDevice ()
	Returns socket's bound netdevice, if any. More...

uint8_t	GetIpTos (void) const
	Query the value of IP Type of Service of this socket. More...

virtual uint8_t	GetIpTtl (void) const
	Query the value of IP Time to Live field of this socket. More...

virtual uint8_t	GetIpv6HopLimit (void) const
	Query the value of IP Hop Limit field of this socket. More...

uint8_t	GetIpv6Tclass (void) const
	Query the value of IPv6 Traffic Class field of this socket. More...

bool	IsIpRecvTos (void) const
	Ask if the socket is currently passing information about IP Type of Service up the stack. More...

bool	IsIpRecvTtl (void) const
	Ask if the socket is currently passing information about IP_TTL up the stack. More...

bool	IsIpv6RecvHopLimit (void) const
	Ask if the socket is currently passing information about IPv6 Hop Limit up the stack. More...

bool	IsIpv6RecvTclass (void) const
	Ask if the socket is currently passing information about IPv6 Traffic Class up the stack. More...

bool	IsRecvPktInfo () const
	Get status indicating whether enable/disable packet information to socket. More...

Ptr< Packet >	Recv (void)
	Read a single packet from the socket. More...

int	Recv (uint8_t *buf, uint32_t size, uint32_t flags)
	Recv data (or dummy data) from the remote host. More...

Ptr< Packet >	RecvFrom (Address &fromAddress)
	Read a single packet from the socket and retrieve the sender address. More...

int	RecvFrom (uint8_t *buf, uint32_t size, uint32_t flags, Address &fromAddress)
	Read a single packet from the socket and retrieve the sender address. More...

int	Send (Ptr< Packet > p)
	Send data (or dummy data) to the remote host. More...

int	Send (const uint8_t *buf, uint32_t size, uint32_t flags)
	Send data (or dummy data) to the remote host. More...

int	SendTo (const uint8_t *buf, uint32_t size, uint32_t flags, const Address &address)
	Send data to a specified peer. More...

void	SetAcceptCallback (Callback< bool, Ptr< Socket >, const Address & > connectionRequest, Callback< void, Ptr< Socket >, const Address & > newConnectionCreated)
	Accept connection requests from remote hosts. More...

void	SetCloseCallbacks (Callback< void, Ptr< Socket > > normalClose, Callback< void, Ptr< Socket > > errorClose)
	Detect socket recv() events such as graceful shutdown or error. More...

void	SetConnectCallback (Callback< void, Ptr< Socket > > connectionSucceeded, Callback< void, Ptr< Socket > > connectionFailed)
	Specify callbacks to allow the caller to determine if the connection succeeds of fails. More...

void	SetDataSentCallback (Callback< void, Ptr< Socket >, uint32_t > dataSent)
	Notify application when a packet has been sent from transport protocol (non-standard socket call) More...

void	SetIpRecvTos (bool ipv4RecvTos)
	Tells a socket to pass information about IP Type of Service up the stack. More...

void	SetIpRecvTtl (bool ipv4RecvTtl)
	Tells a socket to pass information about IP_TTL up the stack. More...

void	SetIpTos (uint8_t ipTos)
	Manually set IP Type of Service field. More...

virtual void	SetIpTtl (uint8_t ipTtl)
	Manually set IP Time to Live field. More...

virtual void	SetIpv6HopLimit (uint8_t ipHopLimit)
	Manually set IPv6 Hop Limit. More...

void	SetIpv6RecvHopLimit (bool ipv6RecvHopLimit)
	Tells a socket to pass information about IPv6 Hop Limit up the stack. More...

void	SetIpv6RecvTclass (bool ipv6RecvTclass)
	Tells a socket to pass information about IPv6 Traffic Class up the stack. More...

void	SetIpv6Tclass (int ipTclass)
	Manually set IPv6 Traffic Class field. More...

void	SetRecvCallback (Callback< void, Ptr< Socket > >)
	Notify application when new data is available to be read. More...

void	SetRecvPktInfo (bool flag)
	Enable/Disable receive packet information to socket. More...

void	SetSendCallback (Callback< void, Ptr< Socket >, uint32_t > sendCb)
	Notify application when space in transmit buffer is added. More...

Public Member Functions inherited from ns3::Object
	Object ()

virtual	~Object ()

void	AggregateObject (Ptr< Object > other)

void	Dispose (void)
	Run the DoDispose methods of this object and all the objects aggregated to it. More...

AggregateIterator	GetAggregateIterator (void) const

virtual TypeId	GetInstanceTypeId (void) const

template<typename T >
Ptr< T >	GetObject (void) const

template<typename T >
Ptr< T >	GetObject (TypeId tid) const

void	Initialize (void)
	This method calls the virtual DoInitialize method on all the objects aggregated to this object. More...

Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
	SimpleRefCount ()
	Constructor. More...

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor. More...

uint32_t	GetReferenceCount (void) const
	Get the reference count of the object. More...

SimpleRefCount &	operator= (const SimpleRefCount &o)
	Assignment. More...

void	Ref (void) const
	Increment the reference count. More...

void	Unref (void) const
	Decrement the reference count. More...

Public Member Functions inherited from ns3::ObjectBase
virtual	~ObjectBase ()
	Virtual destructor. More...

void	GetAttribute (std::string name, AttributeValue &value) const

bool	GetAttributeFailSafe (std::string name, AttributeValue &attribute) const

void	SetAttribute (std::string name, const AttributeValue &value)

bool	SetAttributeFailSafe (std::string name, const AttributeValue &value)

bool	TraceConnect (std::string name, std::string context, const CallbackBase &cb)

bool	TraceConnectWithoutContext (std::string name, const CallbackBase &cb)

bool	TraceDisconnect (std::string name, std::string context, const CallbackBase &cb)

bool	TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb)

Static Public Member Functions
static TypeId	GetTypeId (void)
	Get the type ID. More...

Static Public Member Functions inherited from ns3::TcpSocket
static TypeId	GetTypeId (void)
	Get the type ID. More...

Static Public Member Functions inherited from ns3::Socket
static Ptr< Socket >	CreateSocket (Ptr< Node > node, TypeId tid)
	This method wraps the creation of sockets that is performed on a given node by a SocketFactory specified by TypeId. More...

static TypeId	GetTypeId (void)
	Get the type ID. More...

Static Public Member Functions inherited from ns3::Object
static TypeId	GetTypeId (void)
	Register this type. More...

Static Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
static void	Cleanup (void)
	Noop. More...

Static Public Member Functions inherited from ns3::ObjectBase
static TypeId	GetTypeId (void)
	Get the type ID. More...

Private Member Functions
bool	Accept (void)
	Accept an incoming connection. More...

void	CompleteFork (void)
	Complete the Fork operations (after a connection has been accepted) More...

void	ConnectionSucceeded ()
	Called when a connection is in Established state. More...

Ptr< NscTcpSocketImpl >	Copy ()
	Copy self. More...

void	Destroy (void)
	Kill this socket by zeroing its attributes (IPv4) More...

int	FinishBind (void)
	Finish the binding process. More...

void	ForwardUp (Ptr< Packet > p, Ipv4Header header, uint16_t port, Ptr< Ipv4Interface > incomingInterface)
	Called by the L3 protocol when it received a packet to pass on to TCP. More...

virtual uint32_t	GetAdvWin (void) const
	Get the Advertised Window size. More...

virtual uint32_t	GetConnCount (void) const
	Get the number of connection retries before giving up. More...

virtual Time	GetConnTimeout (void) const
	Get the connection timeout. More...

virtual uint32_t	GetDelAckMaxCount (void) const
	Get the number of packet to fire an ACK before delay timeout. More...

virtual Time	GetDelAckTimeout (void) const
	Get the time to delay an ACK. More...

virtual uint32_t	GetInitialCwnd (void) const
	Get the initial Congestion Window. More...

enum Socket::SocketErrno	GetNativeNs3Errno (int err) const
	Translate between a NSC error and a ns-3 error code. More...

virtual Time	GetPersistTimeout (void) const
	Get the timout for persistent connection. More...

virtual uint32_t	GetRcvBufSize (void) const
	Get the receive buffer size. More...

virtual uint32_t	GetSegSize (void) const
	Get the segment size. More...

virtual uint32_t	GetSndBufSize (void) const
	Get the send buffer size. More...

virtual uint32_t	GetSSThresh (void) const
	Get the Slow Start Threshold. More...

virtual bool	GetTcpNoDelay (void) const
	Check if Nagle's algorithm is enabled or not. More...

void	NSCWakeup (void)
	Called by NscTcpSocketImpl::ForwardUp() More...

bool	ReadPendingData (void)
	Read all the pending data. More...

bool	SendPendingData (void)
	Send all the pending data. More...

virtual void	SetAdvWin (uint32_t window)
	Set the Advertised Window size. More...

virtual void	SetConnCount (uint32_t count)
	Set the number of connection retries before giving up. More...

virtual void	SetConnTimeout (Time timeout)
	Set the connection timeout. More...

virtual void	SetDelAckMaxCount (uint32_t count)
	Set the number of packet to fire an ACK before delay timeout. More...

virtual void	SetDelAckTimeout (Time timeout)
	Set the time to delay an ACK. More...

virtual void	SetInitialCwnd (uint32_t cwnd)
	Set the initial Congestion Window. More...

virtual void	SetPersistTimeout (Time timeout)
	Set the timout for persistent connection. More...

virtual void	SetRcvBufSize (uint32_t size)
	Set the receive buffer size. More...

virtual void	SetSegSize (uint32_t size)
	Set the segment size. More...

virtual void	SetSndBufSize (uint32_t size)
	Set the send buffer size. More...

virtual void	SetSSThresh (uint32_t threshold)
	Set the Slow Start Threshold. More...

virtual void	SetTcpNoDelay (bool noDelay)
	Enable/Disable Nagle's algorithm. More...

Private Attributes
uint32_t	m_advertisedWindowSize
	Window to advertise. More...

bool	m_closeOnEmpty
	true if socket will close when buffer is empty More...

uint32_t	m_cnCount
	Count of remaining connection retries. More...

Time	m_cnTimeout
	Timeout for connection retry. More...

bool	m_connected
	Connection established. More...

TracedValue< uint32_t >	m_cWnd
	Congestion window. More...

uint32_t	m_delAckMaxCount
	Number of packet to fire an ACK before delay timeout. More...

Time	m_delAckTimeout
	Time to delay an ACK. More...

std::queue< Ptr< Packet > >	m_deliveryQueue
	receive buffer More...

Ipv4EndPoint *	m_endPoint
	the IPv4 endpoint More...

enum SocketErrno	m_errno
	last error number More...

uint32_t	m_initialCWnd
	Initial cWnd value. More...

Time	m_lastMeasuredRtt
	Last measured RTT. More...

Ipv4Address	m_localAddress
	local address More...

uint16_t	m_localPort
	local port More...

Ptr< Node >	m_node
	the associated node More...

bool	m_noDelay
	Disable ACk delay. More...

INetStreamSocket *	m_nscTcpSocket
	the real NSC TCP socket More...

InetSocketAddress	m_peerAddress
	peer IP and port More...

Time	m_persistTimeout
	Time between sending 1-byte probes. More...

uint32_t	m_rcvBufSize
	maximum receive socket buffer size More...

Ipv4Address	m_remoteAddress
	peer IP address More...

uint16_t	m_remotePort
	peer port More...

uint32_t	m_rxAvailable
	receive buffer available size More...

uint32_t	m_rxWindowSize
	Receive window size. More...

uint32_t	m_segmentSize
	SegmentSize. More...

bool	m_shutdownRecv
	Receive no longer allowed. More...

bool	m_shutdownSend
	Send no longer allowed. More...

uint32_t	m_sndBufSize
	buffer limit for the outgoing queue More...

uint32_t	m_ssThresh
	Slow Start Threshold. More...

TracedValue< TcpStates_t >	m_state
	state information More...

Ptr< NscTcpL4Protocol >	m_tcp
	the associated TCP L4 protocol More...

std::queue< Ptr< Packet > >	m_txBuffer
	transmission buffer More...

uint32_t	m_txBufferSize
	transmission buffer size More...

Friends
class	Tcp

Additional Inherited Members
Public Types inherited from ns3::Socket
enum	SocketErrno { ERROR_NOTERROR, ERROR_ISCONN, ERROR_NOTCONN, ERROR_MSGSIZE, ERROR_AGAIN, ERROR_SHUTDOWN, ERROR_OPNOTSUPP, ERROR_AFNOSUPPORT, ERROR_INVAL, ERROR_BADF, ERROR_NOROUTETOHOST, ERROR_NODEV, ERROR_ADDRNOTAVAIL, ERROR_ADDRINUSE, SOCKET_ERRNO_LAST }
	Enumeration of the possible errors returned by a socket. More...

enum	SocketType { NS3_SOCK_STREAM, NS3_SOCK_SEQPACKET, NS3_SOCK_DGRAM, NS3_SOCK_RAW }
	Enumeration of the possible socket types. More...

Static Public Attributes inherited from ns3::TcpSocket
static const char *const	TcpStateName [LAST_STATE] = { "CLOSED", "LISTEN", "SYN_SENT", "SYN_RCVD", "ESTABLISHED", "CLOSE_WAIT", "LAST_ACK", "FIN_WAIT_1", "FIN_WAIT_2", "CLOSING", "TIME_WAIT" }
	Literal names of TCP states for use in log messages. More...

Protected Member Functions inherited from ns3::Socket
virtual void	DoDispose (void)
	This method is called by Object::Dispose or by the object's destructor, whichever comes first. More...

bool	IsManualIpTos (void) const
	Checks if the socket has a specific IPv4 ToS set. More...

bool	IsManualIpTtl (void) const
	Checks if the socket has a specific IPv4 TTL set. More...

bool	IsManualIpv6HopLimit (void) const
	Checks if the socket has a specific IPv6 Hop Limit set. More...

bool	IsManualIpv6Tclass (void) const
	Checks if the socket has a specific IPv6 Tclass set. More...

void	NotifyConnectionFailed (void)
	Notify through the callback (if set) that the connection has not been established due to an error. More...

bool	NotifyConnectionRequest (const Address &from)
	Notify through the callback (if set) that an incoming connection is being requested by a remote host. More...

void	NotifyConnectionSucceeded (void)
	Notify through the callback (if set) that the connection has been established. More...

void	NotifyDataRecv (void)
	Notify through the callback (if set) that some data have been received. More...

void	NotifyDataSent (uint32_t size)
	Notify through the callback (if set) that some data have been sent. More...

void	NotifyErrorClose (void)
	Notify through the callback (if set) that the connection has been closed due to an error. More...

void	NotifyNewConnectionCreated (Ptr< Socket > socket, const Address &from)
	Notify through the callback (if set) that a new connection has been created. More...

void	NotifyNormalClose (void)
	Notify through the callback (if set) that the connection has been closed. More...

void	NotifySend (uint32_t spaceAvailable)
	Notify through the callback (if set) that some data have been sent. More...

Protected Member Functions inherited from ns3::Object
	Object (const Object &o)

virtual void	DoInitialize (void)
	This method is called only once by Object::Initialize. More...

virtual void	NotifyNewAggregate (void)
	This method is invoked whenever two sets of objects are aggregated together. More...

Protected Member Functions inherited from ns3::ObjectBase
void	ConstructSelf (const AttributeConstructionList &attributes)

virtual void	NotifyConstructionCompleted (void)
	This method is invoked once all member attributes have been initialized. More...

Protected Attributes inherited from ns3::Socket
Ptr< NetDevice >	m_boundnetdevice
	the device this socket is bound to (might be null). More...

bool	m_recvPktInfo
	if the socket should add packet info tags to the packet forwarded to L4. More...

Detailed Description

Socket logic for the NSC TCP sockets.

Most of the TCP internal logic is handled by the NSC tcp library itself; this class maps ns3::Socket calls to the NSC TCP library.

Definition at line 53 of file nsc-tcp-socket-impl.h.

Constructor & Destructor Documentation

ns3::NscTcpSocketImpl::NscTcpSocketImpl ( )

Create an unbound tcp socket.

Definition at line 65 of file nsc-tcp-socket-impl.cc.

References NS_LOG_FUNCTION.

ns3::NscTcpSocketImpl::NscTcpSocketImpl ( const NscTcpSocketImpl & sock )

Clone a TCP socket, for use upon receiving a connection request in LISTEN state.

Parameters

sock	the original Tcp Socket

Definition at line 84 of file nsc-tcp-socket-impl.cc.

References m_txBuffer, NS_LOG_FUNCTION_NOARGS, and NS_LOG_LOGIC.

ns3::NscTcpSocketImpl::~NscTcpSocketImpl ( )

virtual

Note that this piece of code is a bit tricky: when DeAllocate is called, it will call into Ipv4EndPointDemux::Deallocate which triggers a delete of the associated endPoint which triggers in turn a call to the method NscTcpSocketImpl::Destroy below will will zero the m_endPoint field.

Definition at line 128 of file nsc-tcp-socket-impl.cc.

References m_endPoint, m_node, m_tcp, NS_ASSERT, and NS_LOG_FUNCTION.

Member Function Documentation

bool ns3::NscTcpSocketImpl::Accept ( void )

private

Accept an incoming connection.

Returns: true on success

Definition at line 543 of file nsc-tcp-socket-impl.cc.

References INetStreamSocket::accept(), ns3::CLOSED, CompleteFork(), Copy(), INetStreamSocket::is_listening(), ns3::LISTEN, m_nscTcpSocket, m_state, NS_ASSERT, NS_LOG_LOGIC, and ns3::Simulator::ScheduleNow().

Referenced by NSCWakeup().

Here is the call graph for this function:

Here is the caller graph for this function:

int ns3::NscTcpSocketImpl::Bind ( void )

virtual

Allocate a local IPv4 endpoint for this socket.

Returns: 0 on success, -1 on failure.

Implements ns3::Socket.

Definition at line 211 of file nsc-tcp-socket-impl.cc.

References FinishBind(), m_endPoint, m_tcp, and NS_LOG_FUNCTION_NOARGS.

Referenced by Connect().

Here is the call graph for this function:

Here is the caller graph for this function:

int ns3::NscTcpSocketImpl::Bind ( const Address & address )

virtual

Allocate a local endpoint for this socket.

Parameters

address the address to try to allocate

Returns: 0 on success, -1 on failure.

Implements ns3::Socket.

Definition at line 225 of file nsc-tcp-socket-impl.cc.

References ns3::InetSocketAddress::ConvertFrom(), ns3::Socket::ERROR_INVAL, FinishBind(), ns3::Ipv4Address::GetAny(), ns3::InetSocketAddress::GetIpv4(), ns3::InetSocketAddress::GetPort(), ns3::InetSocketAddress::IsMatchingType(), m_endPoint, m_localPort, m_tcp, NS_LOG_FUNCTION, NS_LOG_LOGIC, and port.

Here is the call graph for this function:

int ns3::NscTcpSocketImpl::Bind6 ( void )

virtual

Allocate a local IPv6 endpoint for this socket.

Returns: 0 on success, -1 on failure.

Implements ns3::Socket.

Definition at line 218 of file nsc-tcp-socket-impl.cc.

References ns3::Socket::ERROR_AFNOSUPPORT, m_errno, and NS_LOG_LOGIC.

int ns3::NscTcpSocketImpl::Close ( void )

virtual

Close a socket.

Returns: zero on success, -1 on failure.

After the Close call, the socket is no longer valid, and cannot safely be used for subsequent operations.

Implements ns3::Socket.

Definition at line 276 of file nsc-tcp-socket-impl.cc.

References ns3::CLOSED, INetStreamSocket::disconnect(), m_closeOnEmpty, m_nscTcpSocket, m_state, m_txBuffer, NS_LOG_FUNCTION, NS_LOG_LOGIC, and ShutdownSend().

Here is the call graph for this function:

void ns3::NscTcpSocketImpl::CompleteFork ( void )

private

Complete the Fork operations (after a connection has been accepted)

Definition at line 488 of file nsc-tcp-socket-impl.cc.

References ns3::Ipv4Address::Deserialize(), Destroy(), ns3::ESTABLISHED, ForwardUp(), INetStreamSocket::getpeername(), INetStreamSocket::getsockname(), ns3::LISTEN, m_endPoint, m_localAddress, m_localPort, m_nscTcpSocket, m_peerAddress, m_remoteAddress, m_remotePort, m_state, m_tcp, ns3::MakeCallback(), ns3::Socket::NotifyNewConnectionCreated(), NS_ASSERT, NS_LOG_LOGIC, ns3::Ipv4EndPoint::SetDestroyCallback(), and ns3::Ipv4EndPoint::SetRxCallback().

Referenced by Accept().

Here is the call graph for this function:

Here is the caller graph for this function:

int ns3::NscTcpSocketImpl::Connect ( const Address & address )

virtual

Initiate a connection to a remote host.

Parameters

address Address of remote.

Returns: 0 on success, -1 on error (in which case errno is set).

Implements ns3::Socket.

Definition at line 300 of file nsc-tcp-socket-impl.cc.

References Bind(), INetStreamSocket::connect(), ns3::InetSocketAddress::ConvertFrom(), ns3::InetSocketAddress::GetIpv4(), ns3::InetSocketAddress::GetPort(), m_endPoint, m_nscTcpSocket, m_remoteAddress, m_remotePort, m_state, NS_ASSERT, NS_LOG_FUNCTION, ns3::Ipv4Address::Print(), and ns3::SYN_SENT.

Here is the call graph for this function:

void ns3::NscTcpSocketImpl::ConnectionSucceeded ( )

private

Called when a connection is in Established state.

Definition at line 525 of file nsc-tcp-socket-impl.cc.

References ns3::Ipv4Address::Deserialize(), INetStreamSocket::getsockname(), m_localAddress, m_localPort, m_nscTcpSocket, m_remoteAddress, m_remotePort, ns3::Socket::NotifyConnectionSucceeded(), and NS_LOG_LOGIC.

Referenced by NSCWakeup().

Here is the call graph for this function:

Here is the caller graph for this function:

Ptr< NscTcpSocketImpl > ns3::NscTcpSocketImpl::Copy ( void )

private

Copy self.

Returns: a copy of self

Definition at line 680 of file nsc-tcp-socket-impl.cc.

Referenced by Accept().

Here is the caller graph for this function:

void ns3::NscTcpSocketImpl::Destroy ( void )

private

Kill this socket by zeroing its attributes (IPv4)

This is a callback function configured to m_endpoint in SetupCallback(), invoked when the endpoint is destroyed.

Definition at line 188 of file nsc-tcp-socket-impl.cc.

References m_endPoint, m_node, m_tcp, and NS_LOG_FUNCTION_NOARGS.

Referenced by CompleteFork(), and FinishBind().

Here is the caller graph for this function:

int ns3::NscTcpSocketImpl::FinishBind ( void )

private

Finish the binding process.

Returns: 0 on success, -1 on failure

Definition at line 196 of file nsc-tcp-socket-impl.cc.

References Destroy(), ForwardUp(), ns3::Ipv4EndPoint::GetLocalAddress(), ns3::Ipv4EndPoint::GetLocalPort(), m_endPoint, m_localAddress, m_localPort, ns3::MakeCallback(), NS_LOG_FUNCTION_NOARGS, ns3::Ipv4EndPoint::SetDestroyCallback(), and ns3::Ipv4EndPoint::SetRxCallback().

Referenced by Bind().

Here is the call graph for this function:

Here is the caller graph for this function:

void ns3::NscTcpSocketImpl::ForwardUp	(	Ptr< Packet >	p,
		Ipv4Header	header,
		uint16_t	port,
		Ptr< Ipv4Interface >	incomingInterface
	)

private

Called by the L3 protocol when it received a packet to pass on to TCP.

Parameters

p	the incoming packet
header	the packet's IPv4 header
port	the incoming port
incomingInterface	the incoming interface

Definition at line 482 of file nsc-tcp-socket-impl.cc.

References NSCWakeup().

Referenced by CompleteFork(), and FinishBind().

Here is the call graph for this function:

Here is the caller graph for this function:

uint32_t ns3::NscTcpSocketImpl::GetAdvWin ( void ) const

privatevirtual

Get the Advertised Window size.

Returns: the window size

Definition at line 728 of file nsc-tcp-socket-impl.cc.

References m_advertisedWindowSize.

bool ns3::NscTcpSocketImpl::GetAllowBroadcast ( ) const

virtual

Query whether broadcast datagram transmissions are allowed.

This method corresponds to using getsockopt() SO_BROADCAST of real network or BSD sockets.

Returns: true if broadcast is allowed, false otherwise

Implements ns3::Socket.

Definition at line 875 of file nsc-tcp-socket-impl.cc.

uint32_t ns3::NscTcpSocketImpl::GetConnCount ( void ) const

privatevirtual

Get the number of connection retries before giving up.

Returns: the number of connection retries

Implements ns3::TcpSocket.

Definition at line 776 of file nsc-tcp-socket-impl.cc.

References m_cnCount.

Time ns3::NscTcpSocketImpl::GetConnTimeout ( void ) const

privatevirtual

Get the connection timeout.

Returns: the connection timeout

Implements ns3::TcpSocket.

Definition at line 764 of file nsc-tcp-socket-impl.cc.

References m_cnTimeout.

uint32_t ns3::NscTcpSocketImpl::GetDelAckMaxCount ( void ) const

privatevirtual

Get the number of packet to fire an ACK before delay timeout.

Returns: the number of packet to fire an ACK before delay timeout

Implements ns3::TcpSocket.

Definition at line 800 of file nsc-tcp-socket-impl.cc.

References m_delAckMaxCount.

Time ns3::NscTcpSocketImpl::GetDelAckTimeout ( void ) const

privatevirtual

Get the time to delay an ACK.

Returns: the time to delay an ACK

Implements ns3::TcpSocket.

Definition at line 788 of file nsc-tcp-socket-impl.cc.

References m_delAckTimeout.

enum Socket::SocketErrno ns3::NscTcpSocketImpl::GetErrno ( void ) const

virtual

Get last error number.

Returns: the errno associated to the last call which failed in this socket. Each socket's errno is initialized to zero when the socket is created.

Implements ns3::Socket.

Definition at line 168 of file nsc-tcp-socket-impl.cc.

References m_errno, and NS_LOG_FUNCTION_NOARGS.

uint32_t ns3::NscTcpSocketImpl::GetInitialCwnd ( void ) const

privatevirtual

Get the initial Congestion Window.

Returns: the initial congestion window (in bytes)

Implements ns3::TcpSocket.

Definition at line 752 of file nsc-tcp-socket-impl.cc.

References m_initialCWnd.

enum Socket::SocketErrno ns3::NscTcpSocketImpl::GetNativeNs3Errno ( int err ) const

private

Translate between a NSC error and a ns-3 error code.

Parameters

err NSC error

Returns: ns-3 error code

Todo:: better mapping?

Todo:: this mapping isn't correct

Definition at line 830 of file nsc-tcp-socket-impl.cc.

Referenced by ReadPendingData().

Here is the caller graph for this function:

Ptr< Node > ns3::NscTcpSocketImpl::GetNode ( void ) const

virtual

Return the node this socket is associated with.

Returns: the node

Implements ns3::Socket.

Definition at line 181 of file nsc-tcp-socket-impl.cc.

References m_node, and NS_LOG_FUNCTION_NOARGS.

Time ns3::NscTcpSocketImpl::GetPersistTimeout ( void ) const

privatevirtual

Get the timout for persistent connection.

When the timout expires, send 1-byte data to probe for the window size at the receiver when the local knowledge tells that the receiver has zero window size

Returns: the persistent timout

Implements ns3::TcpSocket.

Definition at line 824 of file nsc-tcp-socket-impl.cc.

References m_persistTimeout.

uint32_t ns3::NscTcpSocketImpl::GetRcvBufSize ( void ) const

privatevirtual

Get the receive buffer size.

Returns: the buffer size (in bytes)

Implements ns3::TcpSocket.

Definition at line 704 of file nsc-tcp-socket-impl.cc.

References m_rcvBufSize.

uint32_t ns3::NscTcpSocketImpl::GetRxAvailable ( void ) const

virtual

Return number of bytes which can be returned from one or multiple calls to Recv.

Must be possible to call this method from the Recv callback.

Returns: the number of bytes which can be returned from one or multiple Recv calls.

Implements ns3::Socket.

Definition at line 473 of file nsc-tcp-socket-impl.cc.

References m_rxAvailable, and NS_LOG_FUNCTION_NOARGS.

uint32_t ns3::NscTcpSocketImpl::GetSegSize ( void ) const

privatevirtual

Get the segment size.

Returns: the segment size (in bytes)

Implements ns3::TcpSocket.

Definition at line 716 of file nsc-tcp-socket-impl.cc.

References m_segmentSize.

uint32_t ns3::NscTcpSocketImpl::GetSndBufSize ( void ) const

privatevirtual

Get the send buffer size.

Returns: the buffer size (in bytes)

Implements ns3::TcpSocket.

Definition at line 692 of file nsc-tcp-socket-impl.cc.

References m_sndBufSize.

enum Socket::SocketType ns3::NscTcpSocketImpl::GetSocketType ( void ) const

virtual

Returns: the socket type, analogous to getsockopt (SO_TYPE)

Implements ns3::Socket.

Definition at line 175 of file nsc-tcp-socket-impl.cc.

References ns3::Socket::NS3_SOCK_STREAM.

int ns3::NscTcpSocketImpl::GetSockName ( Address & address ) const

virtual

Get socket address.

Parameters

address the address name this socket is associated with.

Returns: 0 if success, -1 otherwise

Implements ns3::Socket.

Definition at line 465 of file nsc-tcp-socket-impl.cc.

References m_localAddress, m_localPort, and NS_LOG_FUNCTION_NOARGS.

uint32_t ns3::NscTcpSocketImpl::GetSSThresh ( void ) const

privatevirtual

Get the Slow Start Threshold.

Returns: the Slow Start Threshold (in bytes)

Implements ns3::TcpSocket.

Definition at line 740 of file nsc-tcp-socket-impl.cc.

References m_ssThresh.

bool ns3::NscTcpSocketImpl::GetTcpNoDelay ( void ) const

privatevirtual

Check if Nagle's algorithm is enabled or not.

Returns: true if Nagle's algorithm is DISABLED

Implements ns3::TcpSocket.

Definition at line 812 of file nsc-tcp-socket-impl.cc.

References m_noDelay.

uint32_t ns3::NscTcpSocketImpl::GetTxAvailable ( void ) const

virtual

Returns the number of bytes which can be sent in a single call to Send.

For datagram sockets, this returns the number of bytes that can be passed atomically through the underlying protocol.

For stream sockets, this returns the available space in bytes left in the transmit buffer.

Returns: The number of bytes which can be sent in a single Send call.

Implements ns3::Socket.

Definition at line 376 of file nsc-tcp-socket-impl.cc.

References m_sndBufSize, m_txBufferSize, NS_ASSERT, and NS_LOG_FUNCTION_NOARGS.

Referenced by Send().

Here is the caller graph for this function:

TypeId ns3::NscTcpSocketImpl::GetTypeId ( void )

static

Get the type ID.

Returns: the object TypeId

Definition at line 54 of file nsc-tcp-socket-impl.cc.

References m_cWnd, ns3::MakeTraceSourceAccessor(), and ns3::TypeId::SetParent().

Here is the call graph for this function:

int ns3::NscTcpSocketImpl::Listen ( void )

virtual

Listen for incoming connections.

Returns: 0 on success, -1 on error (in which case errno is set).

Implements ns3::Socket.

Definition at line 391 of file nsc-tcp-socket-impl.cc.

References ns3::LISTEN, INetStreamSocket::listen(), m_localPort, m_nscTcpSocket, m_state, and NS_LOG_FUNCTION.

Here is the call graph for this function:

void ns3::NscTcpSocketImpl::NSCWakeup ( void )

private

Called by NscTcpSocketImpl::ForwardUp()

Actually performs the ForwardUp operations

Definition at line 401 of file nsc-tcp-socket-impl.cc.

References Accept(), ns3::CLOSED, ConnectionSucceeded(), ns3::ESTABLISHED, INetStreamSocket::is_connected(), ns3::LISTEN, m_nscTcpSocket, m_state, m_txBuffer, NS_LOG_DEBUG, ReadPendingData(), ns3::Simulator::ScheduleNow(), SendPendingData(), and ns3::SYN_SENT.

Referenced by ForwardUp().

Here is the call graph for this function:

Here is the caller graph for this function:

bool ns3::NscTcpSocketImpl::ReadPendingData ( void )

private

Read all the pending data.

Returns: true on success

Definition at line 576 of file nsc-tcp-socket-impl.cc.

References ns3::Packet::AddPacketTag(), ns3::CLOSE_WAIT, ns3::CLOSED, ns3::Socket::ERROR_AGAIN, ns3::Socket::ERROR_NOTERROR, ns3::ESTABLISHED, GetNativeNs3Errno(), ns3::Packet::GetSize(), m_deliveryQueue, m_errno, m_nscTcpSocket, m_peerAddress, m_rxAvailable, m_state, ns3::Socket::NotifyDataRecv(), NS_LOG_LOGIC, NS_LOG_WARN, INetStreamSocket::read_data(), and ns3::SocketAddressTag::SetAddress().

Referenced by NSCWakeup().

Here is the call graph for this function:

Here is the caller graph for this function:

Ptr< Packet > ns3::NscTcpSocketImpl::Recv	(	uint32_t	maxSize,
		uint32_t	flags
	)

virtual

Read data from the socket.

This function matches closely in semantics to the recv() function call in the standard C library (libc): ssize_t recv (int s, void *buf, size_t len, int flags); except that the receive I/O is asynchronous. This is the primary Recv method at this low-level API and must be implemented by subclasses.

This method is normally used only on a connected socket. In a typical blocking sockets model, this call would block until at least one byte is returned or the connection closes. In ns-3 at this API, the call returns immediately in such a case and returns 0 if nothing is available to be read. However, an application can set a callback, ns3::SetRecvCallback, to be notified of data being available to be read (when it conceptually unblocks); this is an asynchronous I/O model for recv().

This variant of Recv() uses class ns3::Packet to encapsulate data, rather than providing a raw pointer and length field. This allows an ns-3 application to attach tags if desired (such as a flow ID) and may allow the simulator to avoid some data copies. Despite the appearance of receiving Packets on a stream socket, just think of it as a fancy byte buffer with streaming semantics.

The semantics depend on the type of socket. For a datagram socket, each Recv() returns the data from at most one Send(), and order is not necessarily preserved. For a stream socket, the bytes are delivered in order, and on-the-wire packet boundaries are not preserved.

The flags argument is formed by or'ing one or more of the values: MSG_OOB process out-of-band data MSG_PEEK peek at incoming message None of these flags are supported for now.

Some variants of Recv() are supported as additional API, including RecvFrom(), overloaded Recv() without arguments, and variants that use raw character buffers.

Parameters

maxSize	reader will accept packet up to maxSize
flags	Socket control flags

Returns: Ptr<Packet> of the next in-sequence packet. Returns 0 if the socket cannot return a next in-sequence packet conforming to the maxSize and flags.

See also: SetRecvCallback

Implements ns3::Socket.

Definition at line 425 of file nsc-tcp-socket-impl.cc.

References ns3::Socket::ERROR_AGAIN, ns3::Packet::GetSize(), m_deliveryQueue, m_errno, m_rxAvailable, and NS_LOG_FUNCTION_NOARGS.

Here is the call graph for this function:

Ptr< Packet > ns3::NscTcpSocketImpl::RecvFrom	(	uint32_t	maxSize,
		uint32_t	flags,
		Address &	fromAddress
	)

virtual

Read a single packet from the socket and retrieve the sender address.

Calls Recv(maxSize, flags) with maxSize implicitly set to maximum sized integer, and flags set to zero.

This method has similar semantics to Recv () but subclasses may want to provide checks on socket state, so the implementation is pushed to subclasses.

Parameters

maxSize	reader will accept packet up to maxSize
flags	Socket control flags
fromAddress	output parameter that will return the address of the sender of the received packet, if any. Remains untouched if no packet is received.

Returns: Ptr<Packet> of the next in-sequence packet. Returns 0 if the socket cannot return a next in-sequence packet.

Implements ns3::Socket.

Definition at line 448 of file nsc-tcp-socket-impl.cc.

References ns3::SocketAddressTag::GetAddress(), NS_ASSERT, NS_LOG_FUNCTION, ns3::Packet::PeekPacketTag(), and ns3::Socket::Recv().

Here is the call graph for this function:

int ns3::NscTcpSocketImpl::Send	(	Ptr< Packet >	p,
		uint32_t	flags
	)

virtual

Send data (or dummy data) to the remote host.

This function matches closely in semantics to the send() function call in the standard C library (libc): ssize_t send (int s, const void *msg, size_t len, int flags); except that the send I/O is asynchronous. This is the primary Send method at this low-level API and must be implemented by subclasses.

In a typical blocking sockets model, this call would block upon lack of space to hold the message to be sent. In ns-3 at this API, the call returns immediately in such a case, but the callback registered with SetSendCallback() is invoked when the socket has space (when it conceptually unblocks); this is an asynchronous I/O model for send().

This variant of Send() uses class ns3::Packet to encapsulate data, rather than providing a raw pointer and length field. This allows an ns-3 application to attach tags if desired (such as a flow ID) and may allow the simulator to avoid some data copies. Despite the appearance of sending Packets on a stream socket, just think of it as a fancy byte buffer with streaming semantics.

If either the message buffer within the Packet is too long to pass atomically through the underlying protocol (for datagram sockets), or the message buffer cannot entirely fit in the transmit buffer (for stream sockets), -1 is returned and SocketErrno is set to ERROR_MSGSIZE. If the packet does not fit, the caller can split the Packet (based on information obtained from GetTxAvailable) and reattempt to send the data.

The flags argument is formed by or'ing one or more of the values: MSG_OOB process out-of-band data MSG_DONTROUTE bypass routing, use direct interface These flags are unsupported as of ns-3.1.

Parameters

p	ns3::Packet to send
flags	Socket control flags

Returns: the number of bytes accepted for transmission if no error occurs, and -1 otherwise.

See also: SetSendCallback

Implements ns3::Socket.

Definition at line 326 of file nsc-tcp-socket-impl.cc.

References ns3::CLOSE_WAIT, ns3::Socket::ERROR_MSGSIZE, ns3::Socket::ERROR_NOTCONN, ns3::ESTABLISHED, ns3::Packet::GetSize(), GetTxAvailable(), m_errno, m_state, m_txBuffer, m_txBufferSize, NS_ASSERT, NS_LOG_FUNCTION, SendPendingData(), and ns3::SYN_SENT.

Referenced by SendTo().

Here is the call graph for this function:

Here is the caller graph for this function:

bool ns3::NscTcpSocketImpl::SendPendingData ( void )

private

Send all the pending data.

Returns: true on success

Definition at line 618 of file nsc-tcp-socket-impl.cc.

References ns3::CLOSED, INetStreamSocket::disconnect(), ns3::Socket::ERROR_NOTERROR, m_closeOnEmpty, m_errno, m_nscTcpSocket, m_state, m_txBuffer, m_txBufferSize, ns3::Socket::NotifyDataSent(), NS_ASSERT, NS_LOG_FUNCTION, NS_LOG_LOGIC, ns3::Simulator::ScheduleNow(), and INetStreamSocket::send_data().

Referenced by NSCWakeup(), and Send().

Here is the call graph for this function:

Here is the caller graph for this function:

int ns3::NscTcpSocketImpl::SendTo	(	Ptr< Packet >	p,
		uint32_t	flags,
		const Address &	toAddress
	)

virtual

Send data to a specified peer.

This method has similar semantics to Send () but subclasses may want to provide checks on socket state, so the implementation is pushed to subclasses.

Parameters

p	packet to send
flags	Socket control flags
toAddress	IP Address of remote host

Returns: -1 in case of error or the number of bytes copied in the internal buffer and accepted for transmission.

Implements ns3::Socket.

Definition at line 361 of file nsc-tcp-socket-impl.cc.

References ns3::Socket::ERROR_NOTCONN, m_connected, m_errno, NS_LOG_FUNCTION, and Send().

Here is the call graph for this function:

void ns3::NscTcpSocketImpl::SetAdvWin ( uint32_t window )

privatevirtual

Set the Advertised Window size.

Parameters

window the window size

Definition at line 722 of file nsc-tcp-socket-impl.cc.

References m_advertisedWindowSize.

bool ns3::NscTcpSocketImpl::SetAllowBroadcast ( bool allowBroadcast )

virtual

Configure whether broadcast datagram transmissions are allowed.

This method corresponds to using setsockopt() SO_BROADCAST of real network or BSD sockets. If set on a socket, this option will enable or disable packets to be transmitted to broadcast destination addresses.

Parameters

allowBroadcast Whether broadcast is allowed

Returns: true if operation succeeds

Implements ns3::Socket.

Definition at line 865 of file nsc-tcp-socket-impl.cc.

void ns3::NscTcpSocketImpl::SetConnCount ( uint32_t count )

privatevirtual

Set the number of connection retries before giving up.

Parameters

count the number of connection retries

Implements ns3::TcpSocket.

Definition at line 770 of file nsc-tcp-socket-impl.cc.

References m_cnCount.

void ns3::NscTcpSocketImpl::SetConnTimeout ( Time timeout )

privatevirtual

Set the connection timeout.

Parameters

timeout the connection timeout

Implements ns3::TcpSocket.

Definition at line 758 of file nsc-tcp-socket-impl.cc.

References m_cnTimeout, and timeout.

void ns3::NscTcpSocketImpl::SetDelAckMaxCount ( uint32_t count )

privatevirtual

Set the number of packet to fire an ACK before delay timeout.

Parameters

count the umber of packet to fire an ACK before delay timeout

Implements ns3::TcpSocket.

Definition at line 794 of file nsc-tcp-socket-impl.cc.

References m_delAckMaxCount.

void ns3::NscTcpSocketImpl::SetDelAckTimeout ( Time timeout )

privatevirtual

Set the time to delay an ACK.

Parameters

timeout the time to delay an ACK

Implements ns3::TcpSocket.

Definition at line 782 of file nsc-tcp-socket-impl.cc.

References m_delAckTimeout, and timeout.

void ns3::NscTcpSocketImpl::SetInitialCwnd ( uint32_t cwnd )

privatevirtual

Set the initial Congestion Window.

Parameters

cwnd	the initial congestion window (in bytes)

Implements ns3::TcpSocket.

Definition at line 746 of file nsc-tcp-socket-impl.cc.

References m_initialCWnd.

void ns3::NscTcpSocketImpl::SetNode ( Ptr< Node > node )

Set the associated node.

Parameters

node the node

Definition at line 151 of file nsc-tcp-socket-impl.cc.

References m_advertisedWindowSize, m_cWnd, m_initialCWnd, m_node, m_rxWindowSize, and m_segmentSize.

void ns3::NscTcpSocketImpl::SetPersistTimeout ( Time timeout )

privatevirtual

Set the timout for persistent connection.

When the timout expires, send 1-byte data to probe for the window size at the receiver when the local knowledge tells that the receiver has zero window size

Parameters

timeout the persistent timout

Implements ns3::TcpSocket.

Definition at line 818 of file nsc-tcp-socket-impl.cc.

References m_persistTimeout, and timeout.

void ns3::NscTcpSocketImpl::SetRcvBufSize ( uint32_t size )

privatevirtual

Set the receive buffer size.

Parameters

size	the buffer size (in bytes)

Implements ns3::TcpSocket.

Definition at line 698 of file nsc-tcp-socket-impl.cc.

References m_rcvBufSize.

void ns3::NscTcpSocketImpl::SetSegSize ( uint32_t size )

privatevirtual

Set the segment size.

Parameters

size	the segment size (in bytes)

Implements ns3::TcpSocket.

Definition at line 710 of file nsc-tcp-socket-impl.cc.

References m_segmentSize.

void ns3::NscTcpSocketImpl::SetSndBufSize ( uint32_t size )

privatevirtual

Set the send buffer size.

Parameters

size	the buffer size (in bytes)

Implements ns3::TcpSocket.

Definition at line 686 of file nsc-tcp-socket-impl.cc.

References m_sndBufSize.

void ns3::NscTcpSocketImpl::SetSSThresh ( uint32_t threshold )

privatevirtual

Set the Slow Start Threshold.

Parameters

threshold the Slow Start Threshold (in bytes)

Implements ns3::TcpSocket.

Definition at line 734 of file nsc-tcp-socket-impl.cc.

References m_ssThresh.

void ns3::NscTcpSocketImpl::SetTcp ( Ptr< NscTcpL4Protocol > tcp )

Set the associated TCP L4 protocol.

Parameters

tcp	the TCP L4 protocol

Definition at line 160 of file nsc-tcp-socket-impl.cc.

References m_nscTcpSocket, and m_tcp.

void ns3::NscTcpSocketImpl::SetTcpNoDelay ( bool noDelay )

privatevirtual

Enable/Disable Nagle's algorithm.

Parameters

noDelay true to DISABLE Nagle's algorithm

Implements ns3::TcpSocket.

Definition at line 806 of file nsc-tcp-socket-impl.cc.

References m_noDelay.

int ns3::NscTcpSocketImpl::ShutdownRecv ( void )

virtual

Returns: zero on success, -1 on failure.

Do not allow any further Recv calls. This method is typically implemented for Tcp sockets by a half close.

Implements ns3::Socket.

Definition at line 268 of file nsc-tcp-socket-impl.cc.

References m_shutdownRecv, and NS_LOG_FUNCTION_NOARGS.

int ns3::NscTcpSocketImpl::ShutdownSend ( void )

virtual

Returns: zero on success, -1 on failure.

Do not allow any further Send calls. This method is typically implemented for Tcp sockets by a half close.

Implements ns3::Socket.

Definition at line 261 of file nsc-tcp-socket-impl.cc.

References m_shutdownSend, and NS_LOG_FUNCTION_NOARGS.

Referenced by Close().

Here is the caller graph for this function:

Friends And Related Function Documentation

friend class Tcp

friend

Definition at line 115 of file nsc-tcp-socket-impl.h.

Member Data Documentation

uint32_t ns3::NscTcpSocketImpl::m_advertisedWindowSize

private

Window to advertise.

Definition at line 242 of file nsc-tcp-socket-impl.h.

Referenced by GetAdvWin(), SetAdvWin(), and SetNode().

bool ns3::NscTcpSocketImpl::m_closeOnEmpty

private

true if socket will close when buffer is empty

Definition at line 233 of file nsc-tcp-socket-impl.h.

Referenced by Close(), and SendPendingData().

uint32_t ns3::NscTcpSocketImpl::m_cnCount

private

Count of remaining connection retries.

Definition at line 252 of file nsc-tcp-socket-impl.h.

Referenced by GetConnCount(), and SetConnCount().

Time ns3::NscTcpSocketImpl::m_cnTimeout

private

Timeout for connection retry.

Definition at line 251 of file nsc-tcp-socket-impl.h.

Referenced by GetConnTimeout(), and SetConnTimeout().

bool ns3::NscTcpSocketImpl::m_connected

private

Connection established.

Definition at line 229 of file nsc-tcp-socket-impl.h.

Referenced by SendTo().

TracedValue<uint32_t> ns3::NscTcpSocketImpl::m_cWnd

private

Congestion window.

Definition at line 243 of file nsc-tcp-socket-impl.h.

Referenced by GetTypeId(), and SetNode().

uint32_t ns3::NscTcpSocketImpl::m_delAckMaxCount

private

Number of packet to fire an ACK before delay timeout.

Definition at line 213 of file nsc-tcp-socket-impl.h.

Referenced by GetDelAckMaxCount(), and SetDelAckMaxCount().

Time ns3::NscTcpSocketImpl::m_delAckTimeout

private

Time to delay an ACK.

Definition at line 214 of file nsc-tcp-socket-impl.h.

Referenced by GetDelAckTimeout(), and SetDelAckTimeout().

std::queue<Ptr<Packet> > ns3::NscTcpSocketImpl::m_deliveryQueue

private

receive buffer

Definition at line 256 of file nsc-tcp-socket-impl.h.

Referenced by ReadPendingData(), and Recv().

Ipv4EndPoint* ns3::NscTcpSocketImpl::m_endPoint

private

the IPv4 endpoint

Definition at line 217 of file nsc-tcp-socket-impl.h.

Referenced by Bind(), CompleteFork(), Connect(), Destroy(), FinishBind(), and ~NscTcpSocketImpl().

enum SocketErrno ns3::NscTcpSocketImpl::m_errno

private

last error number

Definition at line 226 of file nsc-tcp-socket-impl.h.

Referenced by Bind6(), GetErrno(), ReadPendingData(), Recv(), Send(), SendPendingData(), and SendTo().

uint32_t ns3::NscTcpSocketImpl::m_initialCWnd

private

Initial cWnd value.

Definition at line 245 of file nsc-tcp-socket-impl.h.

Referenced by GetInitialCwnd(), SetInitialCwnd(), and SetNode().

Time ns3::NscTcpSocketImpl::m_lastMeasuredRtt

private

Last measured RTT.

Definition at line 248 of file nsc-tcp-socket-impl.h.

Ipv4Address ns3::NscTcpSocketImpl::m_localAddress

private

local address

Definition at line 223 of file nsc-tcp-socket-impl.h.

Referenced by CompleteFork(), ConnectionSucceeded(), FinishBind(), and GetSockName().

uint16_t ns3::NscTcpSocketImpl::m_localPort

private

local port

Definition at line 224 of file nsc-tcp-socket-impl.h.

Referenced by Bind(), CompleteFork(), ConnectionSucceeded(), FinishBind(), GetSockName(), and Listen().

Ptr<Node> ns3::NscTcpSocketImpl::m_node

private

the associated node

Definition at line 218 of file nsc-tcp-socket-impl.h.

Referenced by Destroy(), GetNode(), SetNode(), and ~NscTcpSocketImpl().

bool ns3::NscTcpSocketImpl::m_noDelay

private

Disable ACk delay.

Definition at line 215 of file nsc-tcp-socket-impl.h.

Referenced by GetTcpNoDelay(), and SetTcpNoDelay().

INetStreamSocket* ns3::NscTcpSocketImpl::m_nscTcpSocket

private

the real NSC TCP socket

Definition at line 258 of file nsc-tcp-socket-impl.h.

Referenced by Accept(), Close(), CompleteFork(), Connect(), ConnectionSucceeded(), Listen(), NSCWakeup(), ReadPendingData(), SendPendingData(), and SetTcp().

InetSocketAddress ns3::NscTcpSocketImpl::m_peerAddress

private

peer IP and port

Definition at line 225 of file nsc-tcp-socket-impl.h.

Referenced by CompleteFork(), and ReadPendingData().

Time ns3::NscTcpSocketImpl::m_persistTimeout

private

Time between sending 1-byte probes.

Definition at line 253 of file nsc-tcp-socket-impl.h.

Referenced by GetPersistTimeout(), and SetPersistTimeout().

uint32_t ns3::NscTcpSocketImpl::m_rcvBufSize

private

maximum receive socket buffer size

Definition at line 262 of file nsc-tcp-socket-impl.h.

Referenced by GetRcvBufSize(), and SetRcvBufSize().

Ipv4Address ns3::NscTcpSocketImpl::m_remoteAddress

private

peer IP address

Definition at line 220 of file nsc-tcp-socket-impl.h.

Referenced by CompleteFork(), Connect(), and ConnectionSucceeded().

uint16_t ns3::NscTcpSocketImpl::m_remotePort

private

peer port

Definition at line 221 of file nsc-tcp-socket-impl.h.

Referenced by CompleteFork(), Connect(), and ConnectionSucceeded().

uint32_t ns3::NscTcpSocketImpl::m_rxAvailable

private

receive buffer available size

Definition at line 257 of file nsc-tcp-socket-impl.h.

Referenced by GetRxAvailable(), ReadPendingData(), and Recv().

uint32_t ns3::NscTcpSocketImpl::m_rxWindowSize

private

Receive window size.

Definition at line 241 of file nsc-tcp-socket-impl.h.

Referenced by SetNode().

uint32_t ns3::NscTcpSocketImpl::m_segmentSize

private

SegmentSize.

Definition at line 240 of file nsc-tcp-socket-impl.h.

Referenced by GetSegSize(), SetNode(), and SetSegSize().

bool ns3::NscTcpSocketImpl::m_shutdownRecv

private

Receive no longer allowed.

Definition at line 228 of file nsc-tcp-socket-impl.h.

Referenced by ShutdownRecv().

bool ns3::NscTcpSocketImpl::m_shutdownSend

private

Send no longer allowed.

Definition at line 227 of file nsc-tcp-socket-impl.h.

Referenced by ShutdownSend().

uint32_t ns3::NscTcpSocketImpl::m_sndBufSize

private

buffer limit for the outgoing queue

Definition at line 261 of file nsc-tcp-socket-impl.h.

Referenced by GetSndBufSize(), GetTxAvailable(), and SetSndBufSize().

uint32_t ns3::NscTcpSocketImpl::m_ssThresh

private

Slow Start Threshold.

Definition at line 244 of file nsc-tcp-socket-impl.h.

Referenced by GetSSThresh(), and SetSSThresh().

TracedValue<TcpStates_t> ns3::NscTcpSocketImpl::m_state

private

state information

Definition at line 232 of file nsc-tcp-socket-impl.h.

Referenced by Accept(), Close(), CompleteFork(), Connect(), Listen(), NSCWakeup(), ReadPendingData(), Send(), and SendPendingData().

Ptr<NscTcpL4Protocol> ns3::NscTcpSocketImpl::m_tcp

private

the associated TCP L4 protocol

Definition at line 219 of file nsc-tcp-socket-impl.h.

Referenced by Bind(), CompleteFork(), Destroy(), SetTcp(), and ~NscTcpSocketImpl().

std::queue<Ptr<Packet> > ns3::NscTcpSocketImpl::m_txBuffer

private

transmission buffer

Definition at line 236 of file nsc-tcp-socket-impl.h.

Referenced by Close(), NscTcpSocketImpl(), NSCWakeup(), Send(), and SendPendingData().

uint32_t ns3::NscTcpSocketImpl::m_txBufferSize

private

transmission buffer size

Definition at line 237 of file nsc-tcp-socket-impl.h.

Referenced by GetTxAvailable(), Send(), and SendPendingData().

The documentation for this class was generated from the following files:

src/internet/model/nsc-tcp-socket-impl.h
src/internet/model/nsc-tcp-socket-impl.cc

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation