|
Q: How do I determine the size of the Disk Cache set from the Memory Control
Panel?
A: The disk cache is currently (System 7) stored in the SysParmType record, which
you can retrieve with the GetSysPPtr call (documented in Inside
Macintosh:Operating Systems Utilities, chapter 7). The misc field contains
the size of the disk cache in 32K chunks stored in bits 8-15.
You can access this information using code such as:
#include <OSUtils.h>
short GetDiskCacheSize(void) {
SysPPtr pramPtr;
short diskCacheSize;
pramPtr = GetSysPPtr();
diskCacheSize = ( ((unsigned short)(pramPtr->misc)) >> 8 ) * 32;
/* diskCacheSize is now the size in K of the disk cache */
return(diskCacheSize);
}
|
[Jul 03 1996]
|
