/*
- * Copyright (c) 2008 Nicira Networks.
+ * Copyright (c) 2008, 2009 Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
static inline unsigned long *
bitmap_allocate(size_t n_bits)
{
- return xcalloc(1, ROUND_UP(n_bits, BITMAP_ULONG_BITS));
+ size_t n_longs = DIV_ROUND_UP(n_bits, BITMAP_ULONG_BITS);
+ return xcalloc(sizeof(unsigned long int), n_longs);
}
static inline void
void bitmap_set_multiple(unsigned long *, size_t start, size_t count,
bool value);
bool bitmap_equal(const unsigned long *, const unsigned long *, size_t n);
+size_t bitmap_scan(const unsigned long int *, size_t start, size_t end);
+
+#define BITMAP_FOR_EACH_1(IDX, SIZE, BITMAP) \
+ for ((IDX) = bitmap_scan(BITMAP, 0, SIZE); (IDX) < (SIZE); \
+ (IDX) = bitmap_scan(BITMAP, (IDX) + 1, SIZE))
#endif /* bitmap.h */