inet::tcp::TCPVirtualDataRcvQueue::Region Class Reference

#include <TCPVirtualDataRcvQueue.h>

Inheritance diagram for inet::tcp::TCPVirtualDataRcvQueue::Region:

Public Types
enum	CompareStatus {   BEFORE = 1, BEFORE_TOUCH, OVERLAP, AFTER_TOUCH,   AFTER }

Public Member Functions
	Region (uint32 _begin, uint32 _end)
virtual	~Region ()
uint32	getBegin () const
uint32	getEnd () const
unsigned long	getLength () const
unsigned long	getLengthTo (uint32 seq) const
CompareStatus	compare (const TCPVirtualDataRcvQueue::Region &other) const
	Compare self and other. More...
virtual bool	merge (const TCPVirtualDataRcvQueue::Region *other)
	Merge other region to self. More...
virtual void	copyTo (cPacket *msg) const
	Copy self to msg. More...
virtual TCPVirtualDataRcvQueue::Region *	split (uint32 seq)
	Returns an allocated new Region object with filled with [begin..seq) and set self to [seq..end) More...

Protected Attributes
uint32	begin
uint32	end

Member Enumeration Documentation

enum inet::tcp::TCPVirtualDataRcvQueue::Region::CompareStatus

Enumerator
BEFORE
BEFORE_TOUCH
OVERLAP
AFTER_TOUCH
AFTER

{ BEFORE = 1, BEFORE_TOUCH, OVERLAP, AFTER_TOUCH, AFTER };

Constructor & Destructor Documentation

inet::tcp::TCPVirtualDataRcvQueue::Region::Region ( uint32  _begin, uint32  _end  )

inline

Referenced by split().

: begin(_begin), end(_end) {};

virtual inet::tcp::TCPVirtualDataRcvQueue::Region::~Region ( )

inlinevirtual

Reimplemented in inet::tcp::TCPByteStreamRcvQueue::Region.

{};

Member Function Documentation

TCPVirtualDataRcvQueue::Region::CompareStatus inet::tcp::TCPVirtualDataRcvQueue::Region::compare

(

const TCPVirtualDataRcvQueue::Region &

other

)

const

Compare self and other.

{
    if (end == other.begin)
        return BEFORE_TOUCH;
    if (begin == other.end)
        return AFTER_TOUCH;
    if (seqLess(end, other.begin))
        return BEFORE;
    if (seqLess(other.end, begin))
        return AFTER;
    return OVERLAP;
}

void inet::tcp::TCPVirtualDataRcvQueue::Region::copyTo ( cPacket *  msg ) const

virtual

Copy self to msg.

Reimplemented in inet::tcp::TCPByteStreamRcvQueue::Region.

Referenced by inet::tcp::TCPByteStreamRcvQueue::Region::copyTo(), inet::tcp::TCPByteStreamRcvQueue::extractBytesUpTo(), and inet::tcp::TCPVirtualDataRcvQueue::extractBytesUpTo().

{
    msg->setByteLength(getLength());
}

uint32 inet::tcp::TCPVirtualDataRcvQueue::Region::getBegin ( ) const

inline

Referenced by inet::tcp::TCPVirtualDataRcvQueue::extractTo(), inet::tcp::TCPByteStreamRcvQueue::info(), inet::tcp::TCPVirtualDataRcvQueue::insertBytesFromSegment(), and inet::tcp::TCPVirtualDataRcvQueue::merge().

{ return begin; }

uint32 inet::tcp::TCPVirtualDataRcvQueue::Region::getEnd ( ) const

inline

Referenced by inet::tcp::TCPMsgBasedRcvQueue::extractBytesUpTo(), inet::tcp::TCPVirtualDataRcvQueue::extractTo(), inet::tcp::TCPByteStreamRcvQueue::info(), inet::tcp::TCPVirtualDataRcvQueue::insertBytesFromSegment(), and inet::tcp::TCPVirtualDataRcvQueue::merge().

{ return end; }

unsigned long inet::tcp::TCPVirtualDataRcvQueue::Region::getLength ( ) const

inline

Referenced by inet::tcp::TCPByteStreamRcvQueue::Region::copyTo(), and copyTo().

{ return (ulong)(end - begin); }

ulong inet::tcp::TCPVirtualDataRcvQueue::Region::getLengthTo

(

uint32

seq

)

const

{
    // seq below 1st region
    if (seqLE(seq, begin))
        return 0;

    if (seqLess(seq, end)) // part of 1st region
        return (ulong)(seq - begin);

    return (ulong)(end - begin);
}

bool inet::tcp::TCPVirtualDataRcvQueue::Region::merge ( const TCPVirtualDataRcvQueue::Region *  other )

virtual

Merge other region to self.

Reimplemented in inet::tcp::TCPByteStreamRcvQueue::Region.

Referenced by inet::tcp::TCPVirtualDataRcvQueue::merge().

{
    if (seqLess(end, other->begin) || seqLess(other->end, begin))
        return false;
    if (seqLess(other->begin, begin))
        begin = other->begin;
    if (seqLess(end, other->end))
        end = other->end;
    return true;
}

TCPVirtualDataRcvQueue::Region * inet::tcp::TCPVirtualDataRcvQueue::Region::split ( uint32  seq )

virtual

Returns an allocated new Region object with filled with [begin..seq) and set self to [seq..end)

Reimplemented in inet::tcp::TCPByteStreamRcvQueue::Region.

Referenced by inet::tcp::TCPVirtualDataRcvQueue::extractTo().

{
    ASSERT(seqGreater(seq, begin) && seqLess(seq, end));

    Region *reg = new Region(begin, seq);
    begin = seq;
    return reg;
}

Member Data Documentation

uint32 inet::tcp::TCPVirtualDataRcvQueue::Region::begin

protected

Referenced by compare(), getLengthTo(), inet::tcp::TCPByteStreamRcvQueue::Region::merge(), merge(), inet::tcp::TCPByteStreamRcvQueue::Region::split(), and split().

uint32 inet::tcp::TCPVirtualDataRcvQueue::Region::end

protected

Referenced by compare(), getLengthTo(), inet::tcp::TCPByteStreamRcvQueue::Region::merge(), merge(), inet::tcp::TCPByteStreamRcvQueue::Region::split(), and split().

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

• TCPVirtualDataRcvQueue.h
• TCPVirtualDataRcvQueue.cc