113 lines
3.8 KiB
C
113 lines
3.8 KiB
C
|
/* Copyright (C) 2000 MySQL 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 should be included when using merge_isam_funktions */
|
||
|
|
|
||
|
|
#ifndef _myisammrg_h
|
||
|
|
#define _myisammrg_h
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef _my_base_h
|
||
|
|
#include <my_base.h>
|
||
|
|
#endif
|
||
|
|
#ifndef _myisam_h
|
||
|
|
#include <myisam.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <queues.h>
|
||
|
|
|
||
|
|
#define MYRG_NAME_EXT ".MRG"
|
||
|
|
|
||
|
|
/* In which table to INSERT rows */
|
||
|
|
#define MERGE_INSERT_DISABLED 0
|
||
|
|
#define MERGE_INSERT_TO_FIRST 1
|
||
|
|
#define MERGE_INSERT_TO_LAST 2
|
||
|
|
|
||
|
|
extern TYPELIB merge_insert_method;
|
||
|
|
|
||
|
|
/* Param to/from myrg_info */
|
||
|
|
|
||
|
|
typedef struct st_mymerge_info /* Struct from h_info */
|
||
|
|
{
|
||
|
|
ulonglong records; /* Records in database */
|
||
|
|
ulonglong deleted; /* Deleted records in database */
|
||
|
|
ulonglong recpos; /* Pos for last used record */
|
||
|
|
ulonglong data_file_length;
|
||
|
|
uint reclength; /* Recordlength */
|
||
|
|
int errkey; /* With key was dupplicated on err */
|
||
|
|
uint options; /* HA_OPTION_... used */
|
||
|
|
ulong *rec_per_key; /* for sql optimizing */
|
||
|
|
} MYMERGE_INFO;
|
||
|
|
|
||
|
|
typedef struct st_myrg_table_info
|
||
|
|
{
|
||
|
|
struct st_myisam_info *table;
|
||
|
|
ulonglong file_offset;
|
||
|
|
} MYRG_TABLE;
|
||
|
|
|
||
|
|
typedef struct st_myrg_info
|
||
|
|
{
|
||
|
|
MYRG_TABLE *open_tables,*current_table,*end_table,*last_used_table;
|
||
|
|
ulonglong records; /* records in tables */
|
||
|
|
ulonglong del; /* Removed records */
|
||
|
|
ulonglong data_file_length;
|
||
|
|
ulong cache_size;
|
||
|
|
uint merge_insert_method;
|
||
|
|
uint tables,options,reclength,keys;
|
||
|
|
my_bool cache_in_use;
|
||
|
|
LIST open_list;
|
||
|
|
QUEUE by_key;
|
||
|
|
ulong *rec_per_key_part; /* for sql optimizing */
|
||
|
|
} MYRG_INFO;
|
||
|
|
|
||
|
|
|
||
|
|
/* Prototypes for merge-functions */
|
||
|
|
|
||
|
|
extern int myrg_close(MYRG_INFO *file);
|
||
|
|
extern int myrg_delete(MYRG_INFO *file,const byte *buff);
|
||
|
|
extern MYRG_INFO *myrg_open(const char *name,int mode,int wait_if_locked);
|
||
|
|
extern int myrg_panic(enum ha_panic_function function);
|
||
|
|
extern int myrg_rfirst(MYRG_INFO *file,byte *buf,int inx);
|
||
|
|
extern int myrg_rlast(MYRG_INFO *file,byte *buf,int inx);
|
||
|
|
extern int myrg_rnext(MYRG_INFO *file,byte *buf,int inx);
|
||
|
|
extern int myrg_rprev(MYRG_INFO *file,byte *buf,int inx);
|
||
|
|
extern int myrg_rkey(MYRG_INFO *file,byte *buf,int inx,const byte *key,
|
||
|
|
uint key_len, enum ha_rkey_function search_flag);
|
||
|
|
extern int myrg_rrnd(MYRG_INFO *file,byte *buf,ulonglong pos);
|
||
|
|
extern int myrg_rsame(MYRG_INFO *file,byte *record,int inx);
|
||
|
|
extern int myrg_update(MYRG_INFO *file,const byte *old,byte *new_rec);
|
||
|
|
extern int myrg_write(MYRG_INFO *info,byte *rec);
|
||
|
|
extern int myrg_status(MYRG_INFO *file,MYMERGE_INFO *x,int flag);
|
||
|
|
extern int myrg_lock_database(MYRG_INFO *file,int lock_type);
|
||
|
|
extern int myrg_create(const char *name, const char **table_names,
|
||
|
|
uint insert_method, my_bool fix_names);
|
||
|
|
extern int myrg_extra(MYRG_INFO *file,enum ha_extra_function function,
|
||
|
|
void *extra_arg);
|
||
|
|
extern void myrg_extrafunc(MYRG_INFO *info,invalidator_by_filename inv);
|
||
|
|
extern ha_rows myrg_records_in_range(MYRG_INFO *info,int inx,
|
||
|
|
const byte *start_key,uint start_key_len,
|
||
|
|
enum ha_rkey_function start_search_flag,
|
||
|
|
const byte *end_key,uint end_key_len,
|
||
|
|
enum ha_rkey_function end_search_flag);
|
||
|
|
|
||
|
|
extern ulonglong myrg_position(MYRG_INFO *info);
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif
|