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Many fixes

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This commit is contained in:
mronstrom@mysql.com
2005-05-12 11:20:50 +02:00
parent c18a302577
commit cf642995f6
7 changed files with 950 additions and 344 deletions
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55
include/my_bitmap.h
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@@ -21,10 +21,13 @@
#define MY_BIT_NONE (~(uint) 0)
typedef struct st_bitmap
{
uchar *bitmap;
uint bitmap_size; /* number of bytes occupied by the above */
uint bitmap_size; /* number of bits occupied by the above */
uint32 last_word_mask;
uint32 *last_word_ptr;
/*
mutex will be acquired for the duration of each bitmap operation if
thread_safe flag in bitmap_init was set. Otherwise, we optimize by not
@@ -38,30 +41,60 @@ typedef struct st_bitmap
#ifdef __cplusplus
extern "C" {
#endif
extern my_bool bitmap_cmp(const MY_BITMAP *map1, const MY_BITMAP *map2);
extern my_bool bitmap_init(MY_BITMAP *map, uchar *buf, uint bitmap_size, my_bool thread_safe);
extern my_bool bitmap_is_clear_all(const MY_BITMAP *map);
extern my_bool bitmap_is_prefix(const MY_BITMAP *map, uint prefix_size);
extern my_bool bitmap_is_set(const MY_BITMAP *map, uint bitmap_bit);
extern my_bool bitmap_is_set_all(const MY_BITMAP *map);
extern my_bool bitmap_is_subset(const MY_BITMAP *map1, const MY_BITMAP *map2);
extern uint bitmap_set_next(MY_BITMAP *map);
extern uint bitmap_get_first(const MY_BITMAP *map);
extern uint bitmap_get_first_set(const MY_BITMAP *map);
extern uint bitmap_bits_set(const MY_BITMAP *map);
extern void bitmap_clear_all(MY_BITMAP *map);
extern void bitmap_clear_bit(MY_BITMAP *map, uint bitmap_bit);
extern void bitmap_free(MY_BITMAP *map);
extern void bitmap_intersect(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_set_all(MY_BITMAP *map);
extern void bitmap_set_bit(MY_BITMAP *map, uint bitmap_bit);
extern void bitmap_set_prefix(MY_BITMAP *map, uint prefix_size);
extern void bitmap_intersect(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_subtract(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_union(MY_BITMAP *map, const MY_BITMAP *map2);
extern uint bitmap_lock_set_next(MY_BITMAP *map);
extern void bitmap_lock_clear_bit(MY_BITMAP *map, uint bitmap_bit);
#ifdef NOT_USED
extern uint bitmap_lock_bits_set(const MY_BITMAP *map);
extern my_bool bitmap_lock_is_set_all(const MY_BITMAP *map);
extern uint bitmap_lock_get_first(const MY_BITMAP *map);
extern uint bitmap_lock_get_first_set(const MY_BITMAP *map);
extern my_bool bitmap_lock_is_subset(const MY_BITMAP *map1,
const MY_BITMAP *map2);
extern my_bool bitmap_lock_is_prefix(const MY_BITMAP *map, uint prefix_size);
extern my_bool bitmap_lock_is_set(const MY_BITMAP *map, uint bitmap_bit);
extern my_bool bitmap_lock_is_clear_all(const MY_BITMAP *map);
extern my_bool bitmap_lock_cmp(const MY_BITMAP *map1, const MY_BITMAP *map2);
extern void bitmap_lock_set_all(MY_BITMAP *map);
extern void bitmap_lock_clear_all(MY_BITMAP *map);
extern void bitmap_lock_set_bit(MY_BITMAP *map, uint bitmap_bit);
extern void bitmap_lock_flip_bit(MY_BITMAP *map, uint bitmap_bit);
extern void bitmap_lock_set_prefix(MY_BITMAP *map, uint prefix_size);
extern void bitmap_lock_intersect(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_lock_subtract(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_lock_union(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_lock_xor(MY_BITMAP *map, const MY_BITMAP *map2);
extern void bitmap_lock_invert(MY_BITMAP *map);
#endif
/* Fast, not thread safe, bitmap functions */
#define bitmap_fast_set_bit(MAP, BIT) (MAP)->bitmap[(BIT) / 8] |= (1 << ((BIT) & 7))
#define bitmap_fast_clear_bit(MAP, BIT) (MAP)->bitmap[(BIT) / 8] &= ~ (1 << ((BIT) & 7))
#define bitmap_fast_is_set(MAP, BIT) (MAP)->bitmap[(BIT) / 8] & (1 << ((BIT) & 7))
#define no_bytes_in_map(map) ((map->bitmap_size + 7)/8)
#define no_words_in_map(map) ((map->bitmap_size + 31)/32)
#define bytes_word_aligned(bytes) (4*((bytes + 3)/4))
#define bitmap_set_bit(MAP, BIT) ((MAP)->bitmap[(BIT) / 8] |= (1 << ((BIT) & 7)))
#define bitmap_flip_bit(MAP, BIT) ((MAP)->bitmap[(BIT) / 8] ^= (1 << ((BIT) & 7)))
#define bitmap_clear_bit(MAP, BIT) ((MAP)->bitmap[(BIT) / 8] &= ~ (1 << ((BIT) & 7)))
#define bitmap_is_set(MAP, BIT) ((MAP)->bitmap[(BIT) / 8] & (1 << ((BIT) & 7)))
#define bitmap_cmp(MAP1, MAP2) \
(memcmp((MAP1)->bitmap, (MAP2)->bitmap, 4*no_words_in_map((MAP1)))==0)
#define bitmap_clear_all(MAP) \
memset((MAP)->bitmap, 0, 4*no_words_in_map((MAP))); \
*(MAP)->last_word_ptr|= (MAP)->last_word_mask
#define bitmap_set_all(MAP) \
(memset((MAP)->bitmap, 0xFF, 4*no_words_in_map((MAP))))
#ifdef __cplusplus
}