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-rw-r--r--mysql/my_bitmap.h144
1 files changed, 0 insertions, 144 deletions
diff --git a/mysql/my_bitmap.h b/mysql/my_bitmap.h
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index f45c1bc..0000000
--- a/mysql/my_bitmap.h
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@@ -1,144 +0,0 @@
-/*
- Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; version 2 of the License.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
-
-#ifndef _my_bitmap_h_
-#define _my_bitmap_h_
-
-#define MY_BIT_NONE (~(uint) 0)
-
-#include <m_string.h>
-#include "mysql/psi/mysql_thread.h" /* mysql_mutex_t */
-
-typedef uint32 my_bitmap_map;
-
-typedef struct st_bitmap
-{
- my_bitmap_map *bitmap;
- uint n_bits; /* number of bits occupied by the above */
- my_bitmap_map last_word_mask;
- my_bitmap_map *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
- acquiring the mutex
- */
- mysql_mutex_t *mutex;
-} MY_BITMAP;
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-extern void create_last_word_mask(MY_BITMAP *map);
-extern my_bool bitmap_init(MY_BITMAP *map, my_bitmap_map *buf, uint n_bits,
- 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_all(const MY_BITMAP *map);
-extern my_bool bitmap_is_subset(const MY_BITMAP *map1, const MY_BITMAP *map2);
-extern my_bool bitmap_is_overlapping(const MY_BITMAP *map1,
- const MY_BITMAP *map2);
-extern my_bool bitmap_test_and_set(MY_BITMAP *map, uint bitmap_bit);
-extern my_bool bitmap_test_and_clear(MY_BITMAP *map, uint bitmap_bit);
-extern my_bool bitmap_fast_test_and_set(MY_BITMAP *map, uint bitmap_bit);
-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_get_next_set(const MY_BITMAP *map, uint bitmap_bit);
-extern uint bitmap_bits_set(const MY_BITMAP *map);
-extern void bitmap_free(MY_BITMAP *map);
-extern void bitmap_set_above(MY_BITMAP *map, uint from_byte, uint use_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 void bitmap_xor(MY_BITMAP *map, const MY_BITMAP *map2);
-extern void bitmap_invert(MY_BITMAP *map);
-extern void bitmap_copy(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);
-/* Fast, not thread safe, bitmap functions */
-#define bitmap_buffer_size(bits) (((bits)+31)/32)*4
-#define no_bytes_in_map(map) (((map)->n_bits + 7)/8)
-#define no_words_in_map(map) (((map)->n_bits + 31)/32)
-
-static inline void bitmap_set_bit(MY_BITMAP *map, uint bit)
-{
- DBUG_ASSERT(bit < map->n_bits);
- ((uchar*)map->bitmap)[bit / 8] |= (1 << (bit & 7));
-}
-
-
-static inline void bitmap_flip_bit(MY_BITMAP *map, uint bit)
-{
- DBUG_ASSERT(bit < map->n_bits);
- ((uchar*)map->bitmap)[bit / 8] ^= (1 << (bit & 7));
-}
-
-
-static inline void bitmap_clear_bit(MY_BITMAP *map, uint bit)
-{
- DBUG_ASSERT(bit < map->n_bits);
- ((uchar*)map->bitmap)[bit / 8] &= ~(1 << (bit & 7));
-}
-
-
-static inline my_bool bitmap_is_set(const MY_BITMAP *map, uint bit)
-{
- DBUG_ASSERT(bit < map->n_bits);
- return ((uchar*)map->bitmap)[bit / 8] & (1 << (bit & 7));
-}
-
-/**
- Quite unlike other C comparison functions ending with 'cmp', e.g. memcmp(),
- strcmp(), this function returns true if the bitmaps are equal, and false
- otherwise.
-
- @retval true The bitmaps are equal.
- @retval false The bitmaps differ.
- */
-static inline my_bool bitmap_cmp(const MY_BITMAP *map1, const MY_BITMAP *map2)
-{
- DBUG_ASSERT(map1->n_bits > 0);
- DBUG_ASSERT(map2->n_bits > 0);
-
- if (memcmp(map1->bitmap, map2->bitmap, 4*(no_words_in_map(map1)-1)) != 0)
- return FALSE;
- return ((*map1->last_word_ptr | map1->last_word_mask) ==
- (*map2->last_word_ptr | map2->last_word_mask));
-}
-
-/*
- Clears all bits. This is allowed even for a zero-size bitmap.
- */
-static inline void bitmap_clear_all(MY_BITMAP *map)
-{
- memset(map->bitmap, 0, 4 * no_words_in_map(map));
-}
-
-/*
- Sets all bits. This is allowed even for a zero-size bitmap.
- */
-static inline void bitmap_set_all(MY_BITMAP *map)
-{
- memset(map->bitmap, 0xFF, 4 * no_words_in_map(map));
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _my_bitmap_h_ */