diff options
Diffstat (limited to 'sql/ha_blackhole.cc')
| -rw-r--r-- | sql/ha_blackhole.cc | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/sql/ha_blackhole.cc b/sql/ha_blackhole.cc new file mode 100644 index 00000000000..9ac4ba2da15 --- /dev/null +++ b/sql/ha_blackhole.cc @@ -0,0 +1,192 @@ +/* Copyright (C) 2005 MySQL 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 USE_PRAGMA_IMPLEMENTATION +#pragma implementation // gcc: Class implementation +#endif + +#include "mysql_priv.h" +#ifdef HAVE_BLACKHOLE_DB +#include "ha_blackhole.h" + + +const char **ha_blackhole::bas_ext() const +{ + static const char *ext[]= { NullS }; + return ext; +} + +int ha_blackhole::open(const char *name, int mode, uint test_if_locked) +{ + DBUG_ENTER("ha_blackhole::open"); + thr_lock_init(&thr_lock); + thr_lock_data_init(&thr_lock,&lock,NULL); + DBUG_RETURN(0); +} + +int ha_blackhole::close(void) +{ + DBUG_ENTER("ha_blackhole::close"); + thr_lock_delete(&thr_lock); + DBUG_RETURN(0); +} + +int ha_blackhole::create(const char *name, TABLE *table_arg, + HA_CREATE_INFO *create_info) +{ + DBUG_ENTER("ha_blackhole::create"); + DBUG_RETURN(0); +} + +const char *ha_blackhole::index_type(uint key_number) +{ + DBUG_ENTER("ha_blackhole::index_type"); + DBUG_RETURN((table->key_info[key_number].flags & HA_FULLTEXT) ? + "FULLTEXT" : + (table->key_info[key_number].flags & HA_SPATIAL) ? + "SPATIAL" : + (table->key_info[key_number].algorithm == HA_KEY_ALG_RTREE) ? + "RTREE" : + "BTREE"); +} + +int ha_blackhole::write_row(byte * buf) +{ + DBUG_ENTER("ha_blackhole::write_row"); + DBUG_RETURN(0); +} + +int ha_blackhole::rnd_init(bool scan) +{ + DBUG_ENTER("ha_blackhole::rnd_init"); + DBUG_RETURN(0); +} + + +int ha_blackhole::rnd_next(byte *buf) +{ + DBUG_ENTER("ha_blackhole::rnd_next"); + DBUG_RETURN(HA_ERR_END_OF_FILE); +} + + +int ha_blackhole::rnd_pos(byte * buf, byte *pos) +{ + DBUG_ENTER("ha_blackhole::rnd_pos"); + DBUG_ASSERT(0); + DBUG_RETURN(0); +} + + +void ha_blackhole::position(const byte *record) +{ + DBUG_ENTER("ha_blackhole::position"); + DBUG_ASSERT(0); + DBUG_VOID_RETURN; +} + + +void ha_blackhole::info(uint flag) +{ + DBUG_ENTER("ha_blackhole::info"); + + records= 0; + deleted= 0; + errkey= 0; + mean_rec_length= 0; + data_file_length= 0; + index_file_length= 0; + max_data_file_length= 0; + delete_length= 0; + if (flag & HA_STATUS_AUTO) + auto_increment_value= 1; + DBUG_VOID_RETURN; +} + +int ha_blackhole::external_lock(THD *thd, int lock_type) +{ + DBUG_ENTER("ha_blackhole::external_lock"); + DBUG_RETURN(0); +} + + +uint ha_blackhole::lock_count(void) const +{ + DBUG_ENTER("ha_blackhole::lock_count"); + DBUG_RETURN(0); +} + +THR_LOCK_DATA **ha_blackhole::store_lock(THD *thd, + THR_LOCK_DATA **to, + enum thr_lock_type lock_type) +{ + DBUG_ENTER("ha_blackhole::store_lock"); + DBUG_RETURN(to); +} + + +int ha_blackhole::index_read(byte * buf, const byte * key, + uint key_len, enum ha_rkey_function find_flag) +{ + DBUG_ENTER("ha_blackhole::index_read"); + DBUG_RETURN(0); +} + + +int ha_blackhole::index_read_idx(byte * buf, uint idx, const byte * key, + uint key_len, enum ha_rkey_function find_flag) +{ + DBUG_ENTER("ha_blackhole::index_read_idx"); + DBUG_RETURN(HA_ERR_END_OF_FILE); +} + + +int ha_blackhole::index_read_last(byte * buf, const byte * key, uint key_len) +{ + DBUG_ENTER("ha_blackhole::index_read_last"); + DBUG_RETURN(HA_ERR_END_OF_FILE); +} + + +int ha_blackhole::index_next(byte * buf) +{ + DBUG_ENTER("ha_blackhole::index_next"); + DBUG_RETURN(HA_ERR_END_OF_FILE); +} + + +int ha_blackhole::index_prev(byte * buf) +{ + DBUG_ENTER("ha_blackhole::index_prev"); + DBUG_RETURN(HA_ERR_END_OF_FILE); +} + + +int ha_blackhole::index_first(byte * buf) +{ + DBUG_ENTER("ha_blackhole::index_first"); + DBUG_RETURN(HA_ERR_END_OF_FILE); +} + + +int ha_blackhole::index_last(byte * buf) +{ + DBUG_ENTER("ha_blackhole::index_last"); + DBUG_RETURN(HA_ERR_END_OF_FILE); +} + +#endif /* HAVE_BLACKHOLE_DB */ |