diff options
Diffstat (limited to 'sql/ha_blackhole.cc')
| -rw-r--r-- | sql/ha_blackhole.cc | 49 |
1 files changed, 43 insertions, 6 deletions
diff --git a/sql/ha_blackhole.cc b/sql/ha_blackhole.cc index 8c76b860e50..3f4285ec595 100644 --- a/sql/ha_blackhole.cc +++ b/sql/ha_blackhole.cc @@ -2,8 +2,7 @@ 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. + the Free Software Foundation; version 2 of the License. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of @@ -24,10 +23,48 @@ #include "ha_blackhole.h" +/* Blackhole storage engine handlerton */ + +handlerton blackhole_hton= { + "BLACKHOLE", + SHOW_OPTION_YES, + "/dev/null storage engine (anything you write to it disappears)", + DB_TYPE_BLACKHOLE_DB, + NULL, + 0, /* slot */ + 0, /* savepoint size. */ + NULL, /* close_connection */ + NULL, /* savepoint */ + NULL, /* rollback to savepoint */ + NULL, /* release savepoint */ + NULL, /* commit */ + NULL, /* rollback */ + NULL, /* prepare */ + NULL, /* recover */ + NULL, /* commit_by_xid */ + NULL, /* rollback_by_xid */ + NULL, /* create_cursor_read_view */ + NULL, /* set_cursor_read_view */ + NULL, /* close_cursor_read_view */ + HTON_CAN_RECREATE +}; + +/***************************************************************************** +** BLACKHOLE tables +*****************************************************************************/ + +ha_blackhole::ha_blackhole(TABLE *table_arg) + :handler(&blackhole_hton, table_arg) +{} + + +static const char *ha_blackhole_exts[] = { + NullS +}; + const char **ha_blackhole::bas_ext() const -{ - static const char *ext[]= { NullS }; - return ext; +{ + return ha_blackhole_exts; } int ha_blackhole::open(const char *name, int mode, uint test_if_locked) @@ -143,7 +180,7 @@ 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); + DBUG_RETURN(HA_ERR_END_OF_FILE); } |