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+/* 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 */
+
+
+#ifdef __GNUC__
+#pragma interface /* gcc class implementation */
+#endif
+
+/* class for the the myisam handler */
+
+#include <nisam.h>
+
+class ha_isam: public handler
+{
+ N_INFO *file;
+ uint int_option_flag;
+
+ public:
+ ha_isam(TABLE *table): handler(table), file(0),
+ int_option_flag(HA_READ_NEXT+HA_READ_PREV+HA_READ_RND_SAME+
+ HA_KEYPOS_TO_RNDPOS+ HA_READ_ORDER+ HA_LASTKEY_ORDER+
+ HA_HAVE_KEY_READ_ONLY+HA_READ_NOT_EXACT_KEY+
+ HA_LONGLONG_KEYS+HA_KEY_READ_WRONG_STR + HA_DUPP_POS)
+ {}
+ ~ha_isam() {}
+ const char *table_type() const { return "ISAM"; }
+ const char **bas_ext() const;
+ ulong option_flag() const { return int_option_flag; }
+ uint max_record_length() const { return HA_MAX_REC_LENGTH; }
+ uint max_keys() const { return N_MAXKEY; }
+ uint max_key_parts() const { return N_MAXKEY_SEG; }
+ uint max_key_length() const { return N_MAX_KEY_LENGTH; }
+ uint min_record_length(uint options) const;
+ bool low_byte_first() const { return 0; }
+
+ int open(const char *name, int mode, int test_if_locked);
+ int close(void);
+ int write_row(byte * buf);
+ int update_row(const byte * old_data, byte * new_data);
+ int delete_row(const byte * buf);
+ int index_read(byte * buf, const byte * key,
+ uint key_len, enum ha_rkey_function find_flag);
+ int index_read_idx(byte * buf, uint idx, const byte * key,
+ uint key_len, enum ha_rkey_function find_flag);
+ int index_next(byte * buf);
+ int index_prev(byte * buf);
+ int index_first(byte * buf);
+ int index_last(byte * buf);
+ int rnd_init(bool scan=1);
+ int rnd_next(byte *buf);
+ int rnd_pos(byte * buf, byte *pos);
+ void position(const byte *record);
+ my_off_t row_position() { return nisam_position(file); }
+ void info(uint);
+ int extra(enum ha_extra_function operation);
+ int reset(void);
+ int external_lock(THD *thd, int lock_type);
+ ha_rows records_in_range(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);
+
+ int create(const char *name, TABLE *form, HA_CREATE_INFO *create_info);
+ THR_LOCK_DATA **store_lock(THD *thd, THR_LOCK_DATA **to,
+ enum thr_lock_type lock_type);
+
+};
+
+
+
+
+
+