diff options
Diffstat (limited to 'heap/heapdef.h')
-rw-r--r-- | heap/heapdef.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/heap/heapdef.h b/heap/heapdef.h new file mode 100644 index 00000000000..19c3b7d7792 --- /dev/null +++ b/heap/heapdef.h @@ -0,0 +1,81 @@ +/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB + + 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; either version 2 of the License, or + (at your option) any later version. + + 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ + +/* This file is included in all heap-files */ + +#include <my_base.h> /* This includes global */ +#ifdef THREAD +#include <my_pthread.h> +#endif +#include "heap.h" /* Structs & some defines */ + + /* Some extern variables */ + +extern LIST *heap_open_list,*heap_share_list; + +#define test_active(info) \ +if (!(info->update & HA_STATE_AKTIV))\ +{ my_errno=HA_ERR_NO_ACTIVE_RECORD; DBUG_RETURN(-1); } +#define hp_find_hash(A,B) ((HASH_INFO*) _hp_find_block((A),(B))) + + /* Find pos for record and update it in info->current_ptr */ +#define _hp_find_record(info,pos) (info)->current_ptr= _hp_find_block(&(info)->s->block,pos) + +typedef struct st_hash_info +{ + struct st_hash_info *next_key; + byte *ptr_to_rec; +} HASH_INFO; + + /* Prototypes for intern functions */ + +extern HP_SHARE *_hp_find_named_heap(const char *name); +extern int _hp_rectest(HP_INFO *info,const byte *old); +extern void _hp_delete_file_from_open_list(HP_INFO *info); +extern byte *_hp_find_block(HP_BLOCK *info,ulong pos); +extern int _hp_get_new_block(HP_BLOCK *info, ulong* alloc_length); +extern void _hp_free(HP_SHARE *info); +extern byte *_hp_free_level(HP_BLOCK *block,uint level,HP_PTRS *pos, + byte *last_pos); +extern int _hp_write_key(HP_SHARE *info,HP_KEYDEF *keyinfo, + const byte *record,byte *recpos); +extern int _hp_delete_key(HP_INFO *info,HP_KEYDEF *keyinfo, + const byte *record,byte *recpos,int flag); +extern HASH_INFO *_heap_find_hash(HP_BLOCK *block,ulong pos); +extern byte *_hp_search(HP_INFO *info,HP_KEYDEF *keyinfo,const byte *key, + uint nextflag); +extern byte *_hp_search_next(HP_INFO *info, HP_KEYDEF *keyinfo, + const byte *key, + HASH_INFO *pos); +extern ulong _hp_hashnr(HP_KEYDEF *keyinfo,const byte *key); +extern ulong _hp_rec_hashnr(HP_KEYDEF *keyinfo,const byte *rec); +extern ulong _hp_mask(ulong hashnr,ulong buffmax,ulong maxlength); +extern void _hp_movelink(HASH_INFO *pos,HASH_INFO *next_link, + HASH_INFO *newlink); +extern int _hp_rec_key_cmp(HP_KEYDEF *keydef,const byte *rec1, + const byte *rec2); +extern int _hp_key_cmp(HP_KEYDEF *keydef,const byte *rec, + const byte *key); +extern void _hp_make_key(HP_KEYDEF *keydef,byte *key,const byte *rec); +extern int _hp_close(register HP_INFO *info); +extern void _hp_clear(HP_SHARE *info); + +#ifdef THREAD +extern pthread_mutex_t THR_LOCK_heap; +#else +#define pthread_mutex_lock(A) +#define pthread_mutex_unlock(A) +#endif |