mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 20:12:31 +01:00
7013d8ef0a
BitKeeper/etc/logging_ok: auto-union BitKeeper/deleted/.del-LICENSE~4cfaff8de837acb8: Auto merged BitKeeper/deleted/.del-MySQLEULA.txt: Delete: Docs/MySQLEULA.txt BitKeeper/deleted/.del-global.h~e80d28157acfdcb5: Auto merged Build-tools/mysql-copyright-2: Auto merged Build-tools/mysql-copyright: Auto merged heap/heapdef.h: Auto merged heap/hp_open.c: Auto merged innobase/btr/btr0cur.c: Auto merged innobase/lock/lock0lock.c: Auto merged innobase/os/os0file.c: Auto merged innobase/os/os0thread.c: Auto merged myisam/mi_open.c: Auto merged mysql-test/Makefile.am: Auto merged mysql-test/t/null_key.test: Auto merged mysys/safemalloc.c: Auto merged scripts/make_binary_distribution.sh: Auto merged scripts/mysqld_safe.sh: Auto merged scripts/mysqlhotcopy.sh: Auto merged sql/field.h: Auto merged sql/field_conv.cc: Auto merged sql/ha_innodb.h: Auto merged sql/item.cc: Auto merged sql/sql_db.cc: Auto merged sql/sql_parse.cc: Auto merged sql/sql_select.cc: Auto merged sql/table.cc: Auto merged tests/grant.res: Auto merged Build-tools/Do-compile: merge Docs/manual.texi: merge configure.in: merge mysql-test/r/distinct.result: merge mysql-test/r/null_key.result: merge sql/ha_innodb.cc: merge sql/item.h: merge sql/log.cc: merge sql/mysqld.cc: merge support-files/mysql.spec.sh: merge
93 lines
3.5 KiB
C
93 lines
3.5 KiB
C
/* 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 */
|
|
|
|
/*
|
|
When allocating keys /rows in the internal block structure, do it
|
|
within the following boundaries.
|
|
|
|
The challenge is to find the balance between allocate as few blocks
|
|
as possible and keep memory consumption down.
|
|
*/
|
|
|
|
#define HP_MIN_RECORDS_IN_BLOCK 16
|
|
#define HP_MAX_RECORDS_IN_BLOCK 8192
|
|
|
|
/* 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_hp_hash_info
|
|
{
|
|
struct st_hp_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 my_bool hp_if_null_in_key(HP_KEYDEF *keyinfo, const byte *record);
|
|
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
|