diff options
Diffstat (limited to 'sql/ha_myisammrg.h')
-rw-r--r-- | sql/ha_myisammrg.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/sql/ha_myisammrg.h b/sql/ha_myisammrg.h new file mode 100644 index 00000000000..cb1feb52989 --- /dev/null +++ b/sql/ha_myisammrg.h @@ -0,0 +1,67 @@ +/* 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 merge handler */ + +#include <myisammrg.h> + +class ha_myisammrg: public handler +{ + MYRG_INFO *file; + + public: + ha_myisammrg(TABLE *table): handler(table), file(0) {} + ~ha_myisammrg() {} + const char *table_type() const { return "MRG_MyISAM"; } + const char **bas_ext() const; + ulong option_flag() const { return HA_READ_RND_SAME+HA_KEYPOS_TO_RNDPOS+HA_REC_NOT_IN_SEQ;} + uint max_record_length() const { return HA_MAX_REC_LENGTH; } + uint max_keys() const { return 0; } + uint max_key_parts() const { return 0; } + uint max_key_length() 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 myrg_position(file); } + void info(uint); + int extra(enum ha_extra_function operation); + int reset(void); + int external_lock(THD *thd, int lock_type); + uint lock_count(void) const; + 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); +}; |