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45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/* Copyright (C) 2000 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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#ifndef _my_bitmap_h_
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#define _my_bitmap_h_
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#include <my_pthread.h>
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#define MY_BIT_NONE (~(uint) 0)
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typedef struct st_bitmap
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{
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uchar *bitmap;
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uint bitmap_size;
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#ifdef THREAD
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pthread_mutex_t mutex;
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#endif
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} MY_BITMAP;
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern my_bool bitmap_init(MY_BITMAP *bitmap, uint bitmap_size);
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extern void bitmap_free(MY_BITMAP *bitmap);
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extern void bitmap_set_bit(MY_BITMAP *bitmap, uint bitmap_bit);
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extern uint bitmap_set_next(MY_BITMAP *bitmap);
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extern void bitmap_clear_bit(MY_BITMAP *bitmap, uint bitmap_bit);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _my_bitmap_h_ */
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