+++ /dev/null
-/*
- * Range checking
- * Copyright (c) 2003, David H. Hovemeyer <daveho@cs.umd.edu>
- * $Revision: 1.1 $
- *
- * This is free software. You are permitted to use,
- * redistribute, and modify it as specified in the file "COPYING".
- */
-
-#ifndef GEEKOS_RANGE_H
-#define GEEKOS_RANGE_H
-
-#include <geekos/ktypes.h>
-
-/*
- * TODO: think about these, make sure they're correct
- */
-
-/**
- * Check that given range is "proper".
- * @param start the start of the range
- * @param size the size of the range
- * @return true if range is properly within the space
- * 0(inclusive)..ULONG_MAX(inclusive)
- */
-static __inline__ bool
-Check_Range_Proper(ulong_t start, ulong_t size)
-{
- /*
- * Wrap around is only permitted if the sum is zero.
- * E.g., start=ULONG_MAX, size==1 is a valid range.
- */
- ulong_t sum = start + size;
- return start <= sum || (sum == 0);
-}
-
-/**
- * Check that given range lies entirely under the
- * maximum value specified (exclusive).
- * @param start the start of the range
- * @param size the size of the range
- * @param max the lowest address NOT allowed to be in the range
- * @return true if range falls entirely within the range
- * 0(inclusive)..max(exclusive)
- */
-static __inline__ bool
-Check_Range_Under(ulong_t start, ulong_t size, ulong_t max)
-{
- if (!Check_Range_Proper(start, size))
- return false;
-
- return start < max && (start + size) <= max;
-}
-
-#endif /* GEEKOS_RANGE_H */