ATDX_TRCOUNT( )

Description | Cautions | Example | Errors

Name:	long ATDX_TRCOUNT(chdev)
Inputs:	int chdev	valid Dialogic channel device handle
Returns:	last play/record transfer count if successful AT_FAILURE if error
Includes:	srllib.h dxxxlib.h
Category:	Extended Attribute

Description

The ATDX_TRCOUNT( ) function returns the byte count for the last I/O transfer during play or record on the channel chdev.

The function parameter is defined as follows:

Parameter	Description
chdev	specifies the valid channel device handle obtained when the channel was opened using dx_open( ).

Cautions

None.

Example

#include <stdio.h>  
#include <fcntl.h>  
#include <srllib.h>  
#include <dxxxlib.h>  
#include <windows.h>  
   
main()  
{  
   int chdev;  
   long trcount;  
   DX_IOTT iott;  
   DV_TPT  tpt[2];  
   
   /* Open the channel device */  
   if ((chdev = dx_open("dxxxB1C1",NULL)) == -1) {  
     /* Process error */  
   }  
   
   /* Record a voice file. Terminate on receiving a digit, max time,  
    * or reaching a byte count of 50000 bytes.  
    */  
   .  
   .  
   /* set up DX_IOTT */  
   iott.io_type = IO_DEV|IO_EOT;  
   iott.io_bufp = 0;  
   iott.io_offset = 0L;  
   iott.io_length = 50000L;  
   if((iott.io_fhandle = dx_fileopen("file.vox", O_RDWR)) == -1)  {  
     /* process error */  
   }  
   
   /* set up DV_TPTs for the required terminating conditions */  
   dx_clrtpt(tpt,2);  
   tpt[0].tp_type   = IO_CONT;  
   tpt[0].tp_termno = DX_MAXDTMF;     /* Maximum digits */  
   tpt[0].tp_length = 1;              /* terminate on the first digit */  
   tpt[0].tp_flags  = TF_MAXDTMF;     /* Use the default flags */  
   
   tpt[1].tp_type   = IO_EOT;  
   tpt[1].tp_termno = DX_MAXTIME;     /* Maximum time */  
   tpt[1].tp_length = 100;            /* terminate after 10 secs */  
   tpt[1].tp_flags  = TF_MAXTIME;     /* Use the default flags */  
   
   /* Now record to the file */  
   if (dx_rec(chdev,&iott,tpt,EV_SYNC) == -1) {  
     /* process error */  
   }  
   
   /* Examine transfer count */  
   if((trcount = ATDX_TRCOUNT(chdev)) == AT_FAILURE) {  
     /* Process error */  
   }  
   
   printf("%ld bytes recorded\n", trcount);  
   .  
   .  
}

Errors

This function will fail and return AT_FAILURE if an invalid channel device handle is specified in chdev.

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