my_bitmap.h
上传用户:tsgydb
上传日期:2007-04-14
资源大小:10674k
文件大小:1k
- /* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA */
- #ifndef _my_bitmap_h_
- #define _my_bitmap_h_
- #include <my_pthread.h>
- #define MY_BIT_NONE (~(uint) 0)
- typedef struct st_bitmap
- {
- uchar *bitmap;
- uint bitmap_size;
- #ifdef THREAD
- pthread_mutex_t mutex;
- #endif
- } MY_BITMAP;
- #ifdef __cplusplus
- extern "C" {
- #endif
- extern my_bool bitmap_init(MY_BITMAP *bitmap, uint bitmap_size);
- extern void bitmap_free(MY_BITMAP *bitmap);
- extern void bitmap_set_bit(MY_BITMAP *bitmap, uint bitmap_bit);
- extern uint bitmap_set_next(MY_BITMAP *bitmap);
- extern void bitmap_clear_bit(MY_BITMAP *bitmap, uint bitmap_bit);
- #ifdef __cplusplus
- }
- #endif
- #endif /* _my_bitmap_h_ */