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Diffstat (limited to 'include/myisammrg.h')
-rw-r--r-- | include/myisammrg.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/include/myisammrg.h b/include/myisammrg.h new file mode 100644 index 00000000000..cf18e407962 --- /dev/null +++ b/include/myisammrg.h @@ -0,0 +1,92 @@ +/* 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 + +#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; + my_bool cache_in_use; + LIST open_list; +} 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_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); +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 |