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diff --git a/include/myisammrg.h b/include/myisammrg.h
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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
+
+#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