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- /* 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 */
-
- /* 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"
-
- /* 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_OPTIONS_... used */
- } 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;
- uint tables,options,reclength,keys;
- my_bool cache_in_use;
- LIST open_list;
- QUEUE by_key;
- } 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_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,
- my_bool fix_names);
- extern int myrg_extra(MYRG_INFO *file,enum ha_extra_function function);
- 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
-