Category : C Source Code
Archive   : BCPPTECH.ZIP
Filename : TI717.ASC

 
Output of file : TI717.ASC contained in archive : BCPPTECH.ZIP







PRODUCT : Borland C++ NUMBER : 717
VERSION : 2.0
OS : DOS
DATE : February 25, 1992 PAGE : 1/1

TITLE : Getting Amount of Available Memory on the Far Heap




/************************************************************************
Purpose:
This function will determine how much memory is available
on the far heap.

Usage:
To use this function you must put the statement:
extern unsigned long heapsize(void);
within the scope of the calling function.

Method:
The memory available on the far heap is computed by
determining the sum of the freed blocks of memory and
adding that amount to the value returned by coreleft().

***********************************************************************/
#include
#include

unsigned long heapsize(void)
{
unsigned long i = 0; /* Return variable */
struct farheapinfo hi; /* Value returned from farheapwalk */
hi.ptr = NULL; /* Set the beginning of farheapwalk*/

if( farheapcheck() <= 0 ) /* Check for corrupted heap */
return (-1L);

while( farheapwalk(&hi) == _HEAPOK ) /* Walk the heap and sum
size of free blocks */
if( hi.in_use == 0 )
i += hi.size;

i += farcoreleft(); /* Check for amount of free memory from
the highest allocated block to the end
of DOS */
return i;
}













  3 Responses to “Category : C Source Code
Archive   : BCPPTECH.ZIP
Filename : TI717.ASC

  1. Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

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