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authorunknown <acurtis@xiphis.org>2006-05-01 22:45:31 -0700
committerunknown <acurtis@xiphis.org>2006-05-01 22:45:31 -0700
commitb0efe477fbec37c273098bc85263b195544f2edc (patch)
treec54f50741a391458499e36ae02a2103f5717f07e /storage/blackhole/ha_blackhole.h
parentfb2c04a15f6bb4a837e312019e18f881d43bbdd8 (diff)
parentfa15fbf34738550527b6b102960b7d9750fd959d (diff)
downloadmariadb-git-b0efe477fbec37c273098bc85263b195544f2edc.tar.gz
Merge xiphis.org:/home/antony/work2/mysql-5.1
into xiphis.org:/home/antony/work2/wl3201-post-review.2 BitKeeper/etc/ignore: auto-union configure.in: Auto merged sql/ha_ndbcluster.cc: Auto merged sql/handler.h: Auto merged sql/mysqld.cc: Auto merged sql/sql_yacc.yy: Auto merged storage/archive/ha_archive.cc: Auto merged storage/archive/ha_archive.h: Auto merged
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diff --git a/storage/blackhole/ha_blackhole.h b/storage/blackhole/ha_blackhole.h
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+/* 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_INTERFACE
+#pragma interface /* gcc class implementation */
+#endif
+
+/*
+ Class definition for the blackhole storage engine
+ "Dumbest named feature ever"
+*/
+class ha_blackhole: public handler
+{
+ THR_LOCK_DATA lock; /* MySQL lock */
+ THR_LOCK thr_lock;
+
+public:
+ ha_blackhole(TABLE_SHARE *table_arg);
+ ~ha_blackhole()
+ {
+ }
+ /* The name that will be used for display purposes */
+ const char *table_type() const { return "BLACKHOLE"; }
+ /*
+ The name of the index type that will be used for display
+ don't implement this method unless you really have indexes
+ */
+ const char *index_type(uint key_number);
+ const char **bas_ext() const;
+ ulong table_flags() const
+ {
+ return(HA_NULL_IN_KEY | HA_CAN_FULLTEXT | HA_CAN_SQL_HANDLER |
+ HA_DUPP_POS | HA_CAN_INDEX_BLOBS | HA_AUTO_PART_KEY |
+ HA_FILE_BASED | HA_CAN_GEOMETRY | HA_READ_RND_SAME |
+ HA_CAN_INSERT_DELAYED);
+ }
+ ulong index_flags(uint inx, uint part, bool all_parts) const
+ {
+ return ((table_share->key_info[inx].algorithm == HA_KEY_ALG_FULLTEXT) ?
+ 0 : HA_READ_NEXT | HA_READ_PREV | HA_READ_RANGE |
+ HA_READ_ORDER | HA_KEYREAD_ONLY);
+ }
+ /* The following defines can be increased if necessary */
+#define BLACKHOLE_MAX_KEY 64 /* Max allowed keys */
+#define BLACKHOLE_MAX_KEY_SEG 16 /* Max segments for key */
+#define BLACKHOLE_MAX_KEY_LENGTH 1000
+ uint max_supported_keys() const { return BLACKHOLE_MAX_KEY; }
+ uint max_supported_key_length() const { return BLACKHOLE_MAX_KEY_LENGTH; }
+ uint max_supported_key_part_length() const { return BLACKHOLE_MAX_KEY_LENGTH; }
+ int open(const char *name, int mode, uint test_if_locked);
+ int close(void);
+ int write_row(byte * buf);
+ int rnd_init(bool scan);
+ int rnd_next(byte *buf);
+ int rnd_pos(byte * buf, byte *pos);
+ 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_read_last(byte * buf, const byte * key, uint key_len);
+ int index_next(byte * buf);
+ int index_prev(byte * buf);
+ int index_first(byte * buf);
+ int index_last(byte * buf);
+ void position(const byte *record);
+ void info(uint flag);
+ int external_lock(THD *thd, int lock_type);
+ uint lock_count(void) const;
+ int create(const char *name, TABLE *table_arg,
+ HA_CREATE_INFO *create_info);
+ THR_LOCK_DATA **store_lock(THD *thd,
+ THR_LOCK_DATA **to,
+ enum thr_lock_type lock_type);
+ bool has_transactions() { return 1; }
+};