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ns3::TcpTxBuffer Class Reference

class for keeping the data sent by the application to the TCP socket, i.e. the sending buffer. More...

#include <tcp-tx-buffer.h>

+ Inheritance diagram for ns3::TcpTxBuffer:

Public Member Functions

 TcpTxBuffer (uint32_t n=0)
 
bool Add (Ptr< Packet > p)
 
uint32_t Available (void) const
 
Ptr< PacketCopyFromSequence (uint32_t numBytes, const SequenceNumber32 &seq)
 
void DiscardUpTo (const SequenceNumber32 &seq)
 
SequenceNumber32 HeadSequence (void) const
 
uint32_t MaxBufferSize (void) const
 
void SetHeadSequence (const SequenceNumber32 &seq)
 
void SetMaxBufferSize (uint32_t n)
 
uint32_t Size (void) const
 
uint32_t SizeFromSequence (const SequenceNumber32 &seq) const
 
SequenceNumber32 TailSequence (void) const
 
- Public Member Functions inherited from ns3::Object
void AggregateObject (Ptr< Object > other)
 
void Dispose (void)
 
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)
 
- Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
 SimpleRefCount (const SimpleRefCount &o)
 
uint32_t GetReferenceCount (void) const
 
SimpleRefCountoperator= (const SimpleRefCount &o)
 
void Ref (void) const
 
void Unref (void) const
 
- Public Member Functions inherited from ns3::ObjectBase
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)
 
- Static Public Member Functions inherited from ns3::Object
static TypeId GetTypeId (void)
 
- Static Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter >
static void Cleanup (void)
 
- Static Public Member Functions inherited from ns3::ObjectBase
static TypeId GetTypeId (void)
 

Private Types

typedef std::list< Ptr< Packet >
>::iterator 
BufIterator
 

Private Attributes

std::list< Ptr< Packet > > m_data
 
TracedValue< SequenceNumber32m_firstByteSeq
 
uint32_t m_maxBuffer
 
uint32_t m_size
 

Additional Inherited Members

- Protected Member Functions inherited from ns3::Object
 Object (const Object &o)
 
virtual void DoDispose (void)
 
virtual void DoInitialize (void)
 
virtual void NotifyNewAggregate (void)
 
- Protected Member Functions inherited from ns3::ObjectBase
void ConstructSelf (const AttributeConstructionList &attributes)
 
virtual void NotifyConstructionCompleted (void)
 

Detailed Description

class for keeping the data sent by the application to the TCP socket, i.e. the sending buffer.

Definition at line 40 of file tcp-tx-buffer.h.

Member Function Documentation

bool ns3::TcpTxBuffer::Add ( Ptr< Packet p)

Append a data packet to the end of the buffer

Parameters
pThe packet to be appended to the Tx buffer
Returns
Boolean to indicate success

Definition at line 101 of file tcp-tx-buffer.cc.

References Available(), ns3::Packet::GetSize(), NS_LOG_FUNCTION, and NS_LOG_LOGIC.

Referenced by ns3::TcpSocketBase::Send().

uint32_t ns3::TcpTxBuffer::Available ( void  ) const

Returns the available capacity in this Tx window

Definition at line 95 of file tcp-tx-buffer.cc.

Referenced by Add(), and ns3::TcpSocketBase::GetTxAvailable().

Ptr< Packet > ns3::TcpTxBuffer::CopyFromSequence ( uint32_t  numBytes,
const SequenceNumber32 seq 
)

Copy data of size numBytes into a packet, data from the range [seq, seq+numBytes)

Definition at line 133 of file tcp-tx-buffer.cc.

References ns3::Packet::AddAtEnd(), ns3::Packet::CreateFragment(), ns3::Packet::GetSize(), NS_ASSERT, NS_LOG_FUNCTION, NS_LOG_LOGIC, and SizeFromSequence().

Referenced by ns3::TcpSocketBase::SendDataPacket().

void ns3::TcpTxBuffer::DiscardUpTo ( const SequenceNumber32 seq)

Discard data up to but not including this sequence number.

Parameters
seqThe sequence number of the head byte

Definition at line 208 of file tcp-tx-buffer.cc.

References NS_ASSERT, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

uint32_t ns3::TcpTxBuffer::MaxBufferSize ( void  ) const

Returns the Tx window size

Definition at line 83 of file tcp-tx-buffer.cc.

void ns3::TcpTxBuffer::SetHeadSequence ( const SequenceNumber32 seq)

Set the m_firstByteSeq to seq. Supposed to be called only when the connection is just set up and we did not send any data out yet.

Definition at line 201 of file tcp-tx-buffer.cc.

References NS_LOG_FUNCTION.

Referenced by ns3::TcpSocketBase::ProcessSynRcvd(), and ns3::TcpSocketBase::ProcessSynSent().

void ns3::TcpTxBuffer::SetMaxBufferSize ( uint32_t  n)

Set the Tx window size

Definition at line 89 of file tcp-tx-buffer.cc.

Referenced by ns3::TcpSocketBase::SetSndBufSize().

uint32_t ns3::TcpTxBuffer::Size ( void  ) const

Returns total number of bytes in this Tx buffer

Definition at line 77 of file tcp-tx-buffer.cc.

Referenced by ns3::TcpSocketBase::ProcessWait(), ns3::TcpSocketBase::Send(), ns3::TcpSocketBase::SendPendingData(), and ns3::TcpSocketBase::ShutdownSend().

uint32_t ns3::TcpTxBuffer::SizeFromSequence ( const SequenceNumber32 seq) const

Returns the number of bytes from the buffer in the range [seq, tailSequence)

Definition at line 121 of file tcp-tx-buffer.cc.

References NS_LOG_FUNCTION, and NS_LOG_LOGIC.

Referenced by ns3::TcpSocketBase::Close(), CopyFromSequence(), ns3::TcpNewReno::DupAck(), ns3::TcpSocketBase::SendDataPacket(), and ns3::TcpSocketBase::SendPendingData().

SequenceNumber32 ns3::TcpTxBuffer::TailSequence ( void  ) const

Returns the last byte's sequence number + 1

Definition at line 71 of file tcp-tx-buffer.cc.


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