Transport::TPbuffer Struct Reference

Extensible buffer, used to prepare outgoing TPDUs. More...

#include <TPlayer.h>

Public Member Functions
void	Free ()

Static Public Member Functions
static TPbuffer *	GetNew (unsigned offset)
static TPbuffer *	Add (TPbuffer *bufp, const u_char *bytes, unsigned len)
	Add bytes to buffer.

Data Fields
unsigned	dsize
	Total size of buffer.
unsigned	doff
	Offset at which Layer starts writing.
unsigned	dlen
	Current length of data from doff.
int	dfd
	FD of backing file, or -1 if none.
void *	mdata
	Start address of mmapped data (if any)
unsigned	mlen
	Length of mmapped data (if any)
u_char	data [1]
	Data, actually extensible.

Static Public Attributes
static const unsigned	TPBINC = 128

Detailed Description

Extensible buffer, used to prepare outgoing TPDUs.

Definition at line 40 of file TPlayer.h.

Member Function Documentation

GetNew()

static TPbuffer * Transport::TPbuffer::GetNew ( unsigned  offset )

inlinestatic

Definition at line 51 of file TPlayer.h.

                                                  {
            TPbuffer *newbp = static_cast<TPbuffer *>
                (malloc (TPBINC + sizeof (*newbp)));
 
            if ( newbp == 0 )
                return 0;
 
            newbp->dsize = TPBINC;
            newbp->doff = offset;
            newbp->dlen = 0;
            newbp->dfd  = -1;
            newbp->mdata = NULL;
            newbp->mlen = 0;
 
            return newbp;
        }

Free()

void Transport::TPbuffer::Free ( )

inline

Definition at line 68 of file TPlayer.h.

                    {
            if ( dfd > 0 ) close (dfd);
            if ( mdata != NULL )
                isode_munmap(mdata, mlen);
            free (this);
        }

Add()

static TPbuffer * Transport::TPbuffer::Add ( TPbuffer *  bufp, const u_char *  bytes, unsigned  len  )

inlinestatic

Add bytes to buffer.

Definition at line 77 of file TPlayer.h.

                                                   {
            unsigned newlen = bufp->doff + bufp->dlen + len;
 
            if ( bufp->dsize < newlen ) {
                unsigned newsize = bufp->dsize + TPBINC;
                if ( newsize < newlen )
                    newsize = newlen + TPBINC;
 
                TPbuffer *newbp = static_cast<TPbuffer *>
                    (realloc (bufp, sizeof (*bufp) + newsize));
 
                if ( newbp == 0 ) {
                    MSG_Base_Nomem_LOG (sizeof (*bufp) + newsize);
                    free (bufp);
                    return 0;
                }
 
                bufp = newbp;
                bufp->dsize = newsize;
            }
 
            memcpy (bufp->data + bufp->doff + bufp->dlen, bytes, len);
 
            bufp->dlen += len;
 
            return bufp;
        }

References data, dlen, doff, and dsize.

Field Documentation

TPBINC

const unsigned Transport::TPbuffer::TPBINC = 128

static

Definition at line 41 of file TPlayer.h.

dsize

unsigned Transport::TPbuffer::dsize

Total size of buffer.

Definition at line 43 of file TPlayer.h.

Referenced by Add().

doff

unsigned Transport::TPbuffer::doff

Offset at which Layer starts writing.

Definition at line 44 of file TPlayer.h.

Referenced by Add().

dlen

unsigned Transport::TPbuffer::dlen

Current length of data from doff.

Definition at line 45 of file TPlayer.h.

Referenced by Add().

dfd

int Transport::TPbuffer::dfd

FD of backing file, or -1 if none.

Definition at line 46 of file TPlayer.h.

mdata

void* Transport::TPbuffer::mdata

Start address of mmapped data (if any)

Definition at line 47 of file TPlayer.h.

mlen

unsigned Transport::TPbuffer::mlen

Length of mmapped data (if any)

Definition at line 48 of file TPlayer.h.

data

u_char Transport::TPbuffer::data[1]

Data, actually extensible.

Definition at line 49 of file TPlayer.h.

Referenced by Add().

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The documentation for this struct was generated from the following file:

• TPlayer.h