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- /*
- * vmheader.h
- * by Stephen Kuhn (The Iliad Group)
- *
- * Example structures for several pieces of information that the
- * VM manager needs to maintain for each VM block.
- * It is most convenient to organize them into data structures that refer
- * to a single VM block.
- */
-
- struct vmheader {
- int location; /* Current block location: 0=disk,1=RAM */
- char *addr; /* RAM location, if in RAM */
- int prev; /* MRU chain previous */
- int next; /* MRU chain next */
- int number; /* VM Block # contained in this struct */
- int free; /* Free chain next ptr */
- int qfree; /* Queued free chain head */
- int allocs; /* # allocations this block */
- int dirty; /* Has block been modified? */
- int maxfree; /* Maximum free block size */
- int memtype; /* Block type: DOS or EMS */
- int windnum; /* If an EMS block, the hardware window */
- int pagenum; /* If an EMS block, the software page */
- };
-
- struct freeblk {
- int next; /* Offset of the next free chunk of mem */
- int size; /* The size of this free chunk */
- };
-
-