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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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* Copyright (C) 2008 Sun Microsystems
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#ifndef DRIZZLED_HANDLER_H
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#define DRIZZLED_HANDLER_H
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#include <drizzled/xid.h>
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/* Copyright (C) 2000-2006 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/* Definitions for parameters to do with handler-routines */
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#ifdef USE_PRAGMA_INTERFACE
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#pragma interface /* gcc class implementation */
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#include <mysys/my_handler.h>
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#include <storage/myisam/keycache.h>
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#include <mysys/thr_lock.h>
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#include <mysys/hash.h>
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#include <drizzled/sql_string.h>
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#include <drizzled/sql_list.h>
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#define NO_HASH /* Not yet implemented */
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// the following is for checking tables
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#define HA_ADMIN_ALREADY_DONE 1
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#define HA_ADMIN_NOT_IMPLEMENTED -1
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#define HA_ADMIN_FAILED -2
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#define HA_ADMIN_CORRUPT -3
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#define HA_ADMIN_INTERNAL_ERROR -4
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#define HA_ADMIN_INVALID -5
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#define HA_ADMIN_REJECT -6
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#define HA_ADMIN_TRY_ALTER -7
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#define HA_ADMIN_WRONG_CHECKSUM -8
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#define HA_ADMIN_NOT_BASE_TABLE -9
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#define HA_ADMIN_NEEDS_UPGRADE -10
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#define HA_ADMIN_NEEDS_ALTER -11
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#define HA_ADMIN_NEEDS_CHECK -12
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/* Bits to show what an alter table will do */
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#include <drizzled/sql_bitmap.h>
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#define HA_MAX_ALTER_FLAGS 40
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#define HA_MAX_ALTER_FLAGS 39
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typedef Bitmap<HA_MAX_ALTER_FLAGS> HA_ALTER_FLAGS;
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typedef bool (*qc_engine_callback)(Session *session, char *table_key,
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#define HA_ADD_INDEX (0)
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#define HA_DROP_INDEX (1)
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#define HA_ALTER_INDEX (2)
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#define HA_RENAME_INDEX (3)
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#define HA_ADD_UNIQUE_INDEX (4)
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#define HA_DROP_UNIQUE_INDEX (5)
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#define HA_ALTER_UNIQUE_INDEX (6)
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#define HA_RENAME_UNIQUE_INDEX (7)
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#define HA_ADD_PK_INDEX (8)
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#define HA_DROP_PK_INDEX (9)
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#define HA_ALTER_PK_INDEX (10)
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#define HA_ADD_COLUMN (11)
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#define HA_DROP_COLUMN (12)
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#define HA_CHANGE_COLUMN (13)
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#define HA_ALTER_COLUMN_NAME (14)
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#define HA_ALTER_COLUMN_TYPE (15)
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#define HA_ALTER_COLUMN_ORDER (16)
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#define HA_ALTER_COLUMN_NULLABLE (17)
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#define HA_COLUMN_DEFAULT_VALUE (18)
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#define HA_COLUMN_STORAGE (19)
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#define HA_COLUMN_FORMAT (20)
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#define HA_ADD_FOREIGN_KEY (21)
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#define HA_DROP_FOREIGN_KEY (22)
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#define HA_ALTER_FOREIGN_KEY (23)
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#define HA_ADD_CONSTRAINT (24)
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#define HA_CHANGE_CHARACTER_SET (30)
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#define HA_SET_DEFAULT_CHARACTER_SET (31)
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#define HA_CHANGE_AUTOINCREMENT_VALUE (32)
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#define HA_ALTER_STORAGE (33)
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#define HA_ALTER_TABLESPACE (34)
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#define HA_ALTER_ROW_FORMAT (35)
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#define HA_RENAME_TABLE (36)
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#define HA_ALTER_STORAGE_ENGINE (37)
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#define HA_RECREATE (38)
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/* Remember to increase HA_MAX_ALTER_FLAGS when adding more flags! */
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/* Return values for check_if_supported_alter */
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#define HA_ALTER_ERROR -1
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#define HA_ALTER_SUPPORTED_WAIT_LOCK 0
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#define HA_ALTER_SUPPORTED_NO_LOCK 1
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#define HA_ALTER_NOT_SUPPORTED 2
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/* Bits in table_flags() to show what database can do */
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#define HA_NO_TRANSACTIONS (1 << 0) /* Doesn't support transactions */
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#define HA_PARTIAL_COLUMN_READ (1 << 1) /* read may not return all columns */
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#define HA_TABLE_SCAN_ON_INDEX (1 << 2) /* No separate data/index file */
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The following should be set if the following is not true when scanning
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a table with rnd_next()
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- We will see all rows (including deleted ones)
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- Row positions are 'table->s->db_record_offset' apart
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If this flag is not set, filesort will do a postion() call for each matched
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row to be able to find the row later.
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#define HA_REC_NOT_IN_SEQ (1 << 3)
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/* This is now a dead option, just left for compatibility */
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#define HA_CAN_GEOMETRY (1 << 4)
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Reading keys in random order is as fast as reading keys in sort order
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(Used in records.cc to decide if we should use a record cache and by
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filesort to decide if we should sort key + data or key + pointer-to-row
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#define HA_FAST_KEY_READ (1 << 5)
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Set the following flag if we on delete should force all key to be read
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and on update read all keys that changes
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#define HA_REQUIRES_KEY_COLUMNS_FOR_DELETE (1 << 6)
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#define HA_NULL_IN_KEY (1 << 7) /* One can have keys with NULL */
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#define HA_DUPLICATE_POS (1 << 8) /* ha_position() gives dup row */
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#define HA_NO_BLOBS (1 << 9) /* Doesn't support blobs */
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#define HA_CAN_INDEX_BLOBS (1 << 10)
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#define HA_AUTO_PART_KEY (1 << 11) /* auto-increment in multi-part key */
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#define HA_REQUIRE_PRIMARY_KEY (1 << 12) /* .. and can't create a hidden one */
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#define HA_STATS_RECORDS_IS_EXACT (1 << 13) /* stats.records is exact */
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INSERT_DELAYED only works with handlers that uses MySQL internal table
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#define HA_CAN_INSERT_DELAYED (1 << 14)
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If we get the primary key columns for free when we do an index read
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It also implies that we have to retrive the primary key when using
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position() and rnd_pos().
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#define HA_PRIMARY_KEY_IN_READ_INDEX (1 << 15)
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If HA_PRIMARY_KEY_REQUIRED_FOR_POSITION is set, it means that to position()
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uses a primary key. Without primary key, we can't call position().
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#define HA_PRIMARY_KEY_REQUIRED_FOR_POSITION (1 << 16)
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#define HA_CAN_RTREEKEYS (1 << 17) /* Historical, no longer supported */
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#define HA_NOT_DELETE_WITH_CACHE (1 << 18)
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The following is we need to a primary key to delete (and update) a row.
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If there is no primary key, all columns needs to be read on update and delete
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#define HA_PRIMARY_KEY_REQUIRED_FOR_DELETE (1 << 19)
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#define HA_NO_PREFIX_CHAR_KEYS (1 << 20)
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#define HA_CAN_FULLTEXT (1 << 21) /* Historical, no longer supported */
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#define HA_CAN_SQL_HANDLER (1 << 22) /* Historical, no longer supported */
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#define HA_NO_AUTO_INCREMENT (1 << 23)
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#define HA_HAS_CHECKSUM (1 << 24)
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/* Table data are stored in separate files (for lower_case_table_names) */
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#define HA_FILE_BASED (1 << 26)
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#define HA_NO_VARCHAR (1 << 27) /* Historical, no longer supported */
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#define HA_CAN_BIT_FIELD (1 << 28) /* Historical, no longer supported */
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#define HA_NEED_READ_RANGE_BUFFER (1 << 29) /* for read_multi_range */
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#define HA_ANY_INDEX_MAY_BE_UNIQUE (1 << 30)
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#define HA_NO_COPY_ON_ALTER (1LL << 31)
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#define HA_HAS_RECORDS (1LL << 32) /* records() gives exact count*/
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/* Has it's own method of binlog logging */
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#define HA_HAS_OWN_BINLOGGING (1LL << 33) /* Historical, no longer supported */
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#define HA_MRR_CANT_SORT (1LL << 34)
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Engine is capable of row-format and statement-format logging,
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#define HA_BINLOG_ROW_CAPABLE (1LL << 35)
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#define HA_BINLOG_STMT_CAPABLE (1LL << 36)
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#define HA_ONLINE_ALTER (1LL << 37)
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Set of all binlog flags. Currently only contain the capabilities
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#define HA_BINLOG_FLAGS (HA_BINLOG_ROW_CAPABLE | HA_BINLOG_STMT_CAPABLE)
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/* bits in index_flags(index_number) for what you can do with index */
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#define HA_READ_NEXT 1 /* TODO really use this flag */
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#define HA_READ_PREV 2 /* supports ::index_prev */
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#define HA_READ_ORDER 4 /* index_next/prev follow sort order */
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#define HA_READ_RANGE 8 /* can find all records in a range */
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#define HA_ONLY_WHOLE_INDEX 16 /* Can't use part key searches */
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#define HA_KEYREAD_ONLY 64 /* Support HA_EXTRA_KEYREAD */
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Index scan will not return records in rowid order. Not guaranteed to be
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set for unordered (e.g. HASH) indexes.
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#define HA_KEY_SCAN_NOT_ROR 128
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#define HA_DO_INDEX_COND_PUSHDOWN 256 /* Supports Index Condition Pushdown */
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HA_PARTITION_FUNCTION_SUPPORTED indicates that the function is
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HA_FAST_CHANGE_PARTITION means that optimised variants of the changes
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exists but they are not necessarily done online.
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HA_ONLINE_DOUBLE_WRITE means that the handler supports writing to both
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the new partition and to the old partitions when updating through the
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old partitioning schema while performing a change of the partitioning.
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This means that we can support updating of the table while performing
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the copy phase of the change. For no lock at all also a double write
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from new to old must exist and this is not required when this flag is
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This is actually removed even before it was introduced the first time.
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The new idea is that handlers will handle the lock level already in
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store_lock for ALTER Table partitions.
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HA_PARTITION_ONE_PHASE is a flag that can be set by handlers that take
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care of changing the partitions online and in one phase. Thus all phases
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needed to handle the change are implemented inside the storage engine.
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The storage engine must also support auto-discovery since the frm file
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is changed as part of the change and this change must be controlled by
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the storage engine. A typical engine to support this is NDB (through
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#define HA_PARTITION_FUNCTION_SUPPORTED (1L << 1)
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#define HA_FAST_CHANGE_PARTITION (1L << 2)
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#define HA_PARTITION_ONE_PHASE (1L << 3)
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/* operations for disable/enable indexes */
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#define HA_KEY_SWITCH_NONUNIQ 0
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#define HA_KEY_SWITCH_ALL 1
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#define HA_KEY_SWITCH_NONUNIQ_SAVE 2
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#define HA_KEY_SWITCH_ALL_SAVE 3
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Note: the following includes binlog and closing 0.
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so: innodb + bdb + ndb + binlog + myisam + myisammrg + archive +
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example + csv + heap + blackhole + federated + 0
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(yes, the sum is deliberately inaccurate)
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TODO remove the limit, use dynarrays
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Parameters for open() (in register form->filestat)
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HA_GET_INFO does an implicit HA_ABORT_IF_LOCKED
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#define HA_OPEN_KEYFILE 1
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#define HA_OPEN_RNDFILE 2
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#define HA_GET_INDEX 4
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#define HA_GET_INFO 8 /* do a ha_info() after open */
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#define HA_READ_ONLY 16 /* File opened as readonly */
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/* Try readonly if can't open with read and write */
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#define HA_TRY_READ_ONLY 32
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#define HA_WAIT_IF_LOCKED 64 /* Wait if locked on open */
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#define HA_ABORT_IF_LOCKED 128 /* skip if locked on open.*/
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#define HA_BLOCK_LOCK 256 /* unlock when reading some records */
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#define HA_OPEN_TEMPORARY 512
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/* For transactional LOCK Table. handler::lock_table() */
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#define HA_LOCK_IN_SHARE_MODE F_RDLCK
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#define HA_LOCK_IN_EXCLUSIVE_MODE F_WRLCK
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/* Some key definitions */
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#define HA_KEY_NULL_LENGTH 1
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#define HA_KEY_BLOB_LENGTH 2
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#define HA_LEX_CREATE_TMP_TABLE 1
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#define HA_LEX_CREATE_IF_NOT_EXISTS 2
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#define HA_LEX_CREATE_TABLE_LIKE 4
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#define HA_OPTION_NO_CHECKSUM (1L << 17)
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#define HA_OPTION_NO_DELAY_KEY_WRITE (1L << 18)
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#define HA_MAX_REC_LENGTH 65535
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/* Table caching type */
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#define HA_CACHE_TBL_NONTRANSACT 0
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#define HA_CACHE_TBL_NOCACHE 1
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#define HA_CACHE_TBL_ASKTRANSACT 2
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#define HA_CACHE_TBL_TRANSACT 4
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/* Options of START TRANSACTION statement (and later of SET TRANSACTION stmt) */
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#define DRIZZLE_START_TRANS_OPT_WITH_CONS_SNAPSHOT 1
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/* Flags for method is_fatal_error */
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#define HA_CHECK_DUP_KEY 1
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#define HA_CHECK_DUP_UNIQUE 2
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#define HA_CHECK_DUP (HA_CHECK_DUP_KEY + HA_CHECK_DUP_UNIQUE)
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DB_TYPE_UNKNOWN=0,DB_TYPE_DIAB_ISAM=1,
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DB_TYPE_HASH,DB_TYPE_MISAM,DB_TYPE_PISAM,
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DB_TYPE_RMS_ISAM, DB_TYPE_HEAP, DB_TYPE_ISAM,
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DB_TYPE_MRG_ISAM, DB_TYPE_MYISAM, DB_TYPE_MRG_MYISAM,
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DB_TYPE_BERKELEY_DB, DB_TYPE_INNODB,
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DB_TYPE_GEMINI, DB_TYPE_NDBCLUSTER,
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DB_TYPE_EXAMPLE_DB, DB_TYPE_ARCHIVE_DB, DB_TYPE_CSV_DB,
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DB_TYPE_FEDERATED_DB,
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DB_TYPE_BLACKHOLE_DB,
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DB_TYPE_PARTITION_DB,
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DB_TYPE_TABLE_FUNCTION,
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DB_TYPE_FIRST_DYNAMIC=42,
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DB_TYPE_DEFAULT=127 // Must be last
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enum row_type { ROW_TYPE_NOT_USED=-1, ROW_TYPE_DEFAULT, ROW_TYPE_FIXED,
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ROW_TYPE_DYNAMIC, ROW_TYPE_COMPRESSED,
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ROW_TYPE_REDUNDANT, ROW_TYPE_COMPACT, ROW_TYPE_PAGE };
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enum column_format_type { COLUMN_FORMAT_TYPE_NOT_USED= -1,
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COLUMN_FORMAT_TYPE_DEFAULT= 0,
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COLUMN_FORMAT_TYPE_FIXED= 1,
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COLUMN_FORMAT_TYPE_DYNAMIC= 2 };
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enum enum_binlog_func {
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BFN_BINLOG_PURGE_FILE= 5
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enum enum_binlog_command {
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/* struct to hold information about the table that should be created */
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/* Bits in used_fields */
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#define HA_CREATE_USED_AUTO (1L << 0)
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#define HA_CREATE_USED_RAID (1L << 1) /* Historical, no longer supported */
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#define HA_CREATE_USED_UNION (1L << 2)
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#define HA_CREATE_USED_PASSWORD (1L << 17)
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#define HA_CREATE_USED_INSERT_METHOD (1L << 3)
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#define HA_CREATE_USED_MIN_ROWS (1L << 4)
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#define HA_CREATE_USED_MAX_ROWS (1L << 5)
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#define HA_CREATE_USED_AVG_ROW_LENGTH (1L << 6)
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#define HA_CREATE_USED_PACK_KEYS (1L << 7)
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#define HA_CREATE_USED_CHARSET (1L << 8)
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#define HA_CREATE_USED_DEFAULT_CHARSET (1L << 9)
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#define HA_CREATE_USED_DATADIR (1L << 10)
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#define HA_CREATE_USED_INDEXDIR (1L << 11)
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#define HA_CREATE_USED_ENGINE (1L << 12)
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#define HA_CREATE_USED_CHECKSUM (1L << 13)
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#define HA_CREATE_USED_DELAY_KEY_WRITE (1L << 14)
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#define HA_CREATE_USED_ROW_FORMAT (1L << 15)
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#define HA_CREATE_USED_COMMENT (1L << 16)
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#define HA_CREATE_USED_CONNECTION (1L << 18)
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#define HA_CREATE_USED_KEY_BLOCK_SIZE (1L << 19)
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#define HA_CREATE_USED_TRANSACTIONAL (1L << 20)
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#define HA_CREATE_USED_PAGE_CHECKSUM (1L << 21)
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#define HA_CREATE_USED_BLOCK_SIZE (1L << 22)
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typedef uint64_t my_xid; // this line is the same as in log_event.h
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#define DRIZZLE_XID_PREFIX "MySQLXid"
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#define DRIZZLE_XID_PREFIX_LEN 8 // must be a multiple of 8
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#define DRIZZLE_XID_OFFSET (DRIZZLE_XID_PREFIX_LEN+sizeof(server_id))
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#define DRIZZLE_XID_GTRID_LEN (DRIZZLE_XID_OFFSET+sizeof(my_xid))
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#define XIDDATASIZE DRIZZLE_XIDDATASIZE
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#define MAXGTRIDSIZE 64
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#define MAXBQUALSIZE 64
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#define COMPATIBLE_DATA_YES 0
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#define COMPATIBLE_DATA_NO 1
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typedef bool (*qc_engine_callback)(THD *thd, char *table_key,
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uint64_t *engine_data);
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struct xid_t is binary compatible with the XID structure as
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in the X/Open CAE Specification, Distributed Transaction Processing:
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The XA Specification, X/Open Company Ltd., 1991.
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http://www.opengroup.org/bookstore/catalog/c193.htm
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@see DRIZZLE_XID in mysql/plugin.h
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char data[XIDDATASIZE]; // not \0-terminated !
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xid_t() {} /* Remove gcc warning */
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bool eq(struct xid_t *xid)
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{ return eq(xid->gtrid_length, xid->bqual_length, xid->data); }
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bool eq(long g, long b, const char *d)
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{ return g == gtrid_length && b == bqual_length && !memcmp(d, data, g+b); }
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void set(struct xid_t *xid)
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{ memcpy(this, xid, xid->length()); }
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void set(long f, const char *g, long gl, const char *b, long bl)
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memcpy(data, g, gtrid_length= gl);
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memcpy(data+gl, b, bqual_length= bl);
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void set(uint64_t xid)
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set(DRIZZLE_XID_PREFIX_LEN, 0, DRIZZLE_XID_PREFIX);
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memcpy(data+DRIZZLE_XID_PREFIX_LEN, &server_id, sizeof(server_id));
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memcpy(data+DRIZZLE_XID_OFFSET, &tmp, sizeof(tmp));
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gtrid_length=DRIZZLE_XID_GTRID_LEN;
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void set(long g, long b, const char *d)
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memcpy(data, d, g+b);
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bool is_null() { return formatID == -1; }
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void null() { formatID= -1; }
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my_xid quick_get_my_xid()
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memcpy(&tmp, data+DRIZZLE_XID_OFFSET, sizeof(tmp));
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return gtrid_length == DRIZZLE_XID_GTRID_LEN && bqual_length == 0 &&
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!memcmp(data+DRIZZLE_XID_PREFIX_LEN, &server_id, sizeof(server_id)) &&
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!memcmp(data, DRIZZLE_XID_PREFIX, DRIZZLE_XID_PREFIX_LEN) ?
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quick_get_my_xid() : 0;
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return sizeof(formatID)+sizeof(gtrid_length)+sizeof(bqual_length)+
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gtrid_length+bqual_length;
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return (uchar *)>rid_length;
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return sizeof(gtrid_length)+sizeof(bqual_length)+gtrid_length+bqual_length;
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typedef struct xid_t XID;
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/* for recover() handlerton call */
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#define MIN_XID_LIST_SIZE 128
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#define MAX_XID_LIST_SIZE (1024*128)
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struct handlerton;
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/* The handler for a table type. Will be included in the Table structure */
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typedef struct st_table_share TABLE_SHARE;
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struct st_foreign_key_info;
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typedef struct st_foreign_key_info FOREIGN_KEY_INFO;
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typedef bool (stat_print_fn)(Session *session, const char *type, uint32_t type_len,
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const char *file, uint32_t file_len,
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const char *status, uint32_t status_len);
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typedef bool (stat_print_fn)(THD *thd, const char *type, uint type_len,
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const char *file, uint file_len,
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const char *status, uint status_len);
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enum ha_stat_type { HA_ENGINE_STATUS, HA_ENGINE_LOGS, HA_ENGINE_MUTEX };
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extern st_plugin_int *hton2plugin[MAX_HA];
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NOTE 'all' is also false in auto-commit mode where 'end of statement'
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and 'real commit' mean the same event.
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int (*commit)(handlerton *hton, Session *session, bool all);
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int (*rollback)(handlerton *hton, Session *session, bool all);
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int (*prepare)(handlerton *hton, Session *session, bool all);
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int (*recover)(handlerton *hton, XID *xid_list, uint32_t len);
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int (*commit)(handlerton *hton, THD *thd, bool all);
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int (*rollback)(handlerton *hton, THD *thd, bool all);
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int (*prepare)(handlerton *hton, THD *thd, bool all);
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int (*recover)(handlerton *hton, XID *xid_list, uint len);
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int (*commit_by_xid)(handlerton *hton, XID *xid);
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int (*rollback_by_xid)(handlerton *hton, XID *xid);
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void *(*create_cursor_read_view)(handlerton *hton, Session *session);
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void (*set_cursor_read_view)(handlerton *hton, Session *session, void *read_view);
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void (*close_cursor_read_view)(handlerton *hton, Session *session, void *read_view);
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void *(*create_cursor_read_view)(handlerton *hton, THD *thd);
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void (*set_cursor_read_view)(handlerton *hton, THD *thd, void *read_view);
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void (*close_cursor_read_view)(handlerton *hton, THD *thd, void *read_view);
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handler *(*create)(handlerton *hton, TABLE_SHARE *table, MEM_ROOT *mem_root);
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void (*drop_database)(handlerton *hton, char* path);
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int (*start_consistent_snapshot)(handlerton *hton, Session *session);
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int (*start_consistent_snapshot)(handlerton *hton, THD *thd);
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bool (*flush_logs)(handlerton *hton);
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bool (*show_status)(handlerton *hton, Session *session, stat_print_fn *print, enum ha_stat_type stat);
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int (*fill_files_table)(handlerton *hton, Session *session,
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bool (*show_status)(handlerton *hton, THD *thd, stat_print_fn *print, enum ha_stat_type stat);
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int (*fill_files_table)(handlerton *hton, THD *thd,
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TableList *tables,
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class Item *cond);
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uint32_t flags; /* global handler flags */
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int (*release_temporary_latches)(handlerton *hton, Session *session);
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int (*release_temporary_latches)(handlerton *hton, THD *thd);
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int (*discover)(handlerton *hton, Session* session, const char *db,
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int (*discover)(handlerton *hton, THD* thd, const char *db,
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const char *name,
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unsigned char **frmblob,
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int (*table_exists_in_engine)(handlerton *hton, Session* session, const char *db,
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int (*table_exists_in_engine)(handlerton *hton, THD* thd, const char *db,
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const char *name);
156
576
uint32_t license; /* Flag for Engine License */
157
577
void *data; /* Location for engines to keep personal structures */
581
/* Possible flags of a handlerton (there can be 32 of them) */
582
#define HTON_NO_FLAGS 0
583
#define HTON_CLOSE_CURSORS_AT_COMMIT (1 << 0)
584
#define HTON_ALTER_NOT_SUPPORTED (1 << 1) //Engine does not support alter
585
#define HTON_CAN_RECREATE (1 << 2) //Delete all is used fro truncate
586
#define HTON_HIDDEN (1 << 3) //Engine does not appear in lists
587
#define HTON_FLUSH_AFTER_RENAME (1 << 4)
588
#define HTON_NOT_USER_SELECTABLE (1 << 5)
589
#define HTON_TEMPORARY_NOT_SUPPORTED (1 << 6) //Having temporary tables not supported
590
#define HTON_SUPPORT_LOG_TABLES (1 << 7) //Engine supports log tables
591
#define HTON_NO_PARTITION (1 << 8) //You can not partition these tables
162
593
class Ha_trx_info;
166
597
/* true is not all entries in the ht[] support 2pc */
1793
2268
int ha_end_key_cache(KEY_CACHE *key_cache);
1795
2270
/* report to InnoDB that control passes to the client */
1796
int ha_release_temporary_latches(Session *session);
2271
int ha_release_temporary_latches(THD *thd);
1798
2273
/* transactions: interface to handlerton functions */
1799
int ha_start_consistent_snapshot(Session *session);
2274
int ha_start_consistent_snapshot(THD *thd);
1800
2275
int ha_commit_or_rollback_by_xid(XID *xid, bool commit);
1801
int ha_commit_one_phase(Session *session, bool all);
1802
int ha_rollback_trans(Session *session, bool all);
1803
int ha_prepare(Session *session);
2276
int ha_commit_one_phase(THD *thd, bool all);
2277
int ha_rollback_trans(THD *thd, bool all);
2278
int ha_prepare(THD *thd);
1804
2279
int ha_recover(HASH *commit_list);
1806
2281
/* transactions: these functions never call handlerton functions directly */
1807
int ha_commit_trans(Session *session, bool all);
1808
int ha_autocommit_or_rollback(Session *session, int error);
1809
int ha_enable_transaction(Session *session, bool on);
2282
int ha_commit_trans(THD *thd, bool all);
2283
int ha_autocommit_or_rollback(THD *thd, int error);
2284
int ha_enable_transaction(THD *thd, bool on);
1811
2286
/* savepoints */
1812
int ha_rollback_to_savepoint(Session *session, SAVEPOINT *sv);
1813
int ha_savepoint(Session *session, SAVEPOINT *sv);
1814
int ha_release_savepoint(Session *session, SAVEPOINT *sv);
2287
int ha_rollback_to_savepoint(THD *thd, SAVEPOINT *sv);
2288
int ha_savepoint(THD *thd, SAVEPOINT *sv);
2289
int ha_release_savepoint(THD *thd, SAVEPOINT *sv);
1816
2291
/* these are called by storage engines */
1817
void trans_register_ha(Session *session, bool all, handlerton *ht);
1819
void table_case_convert(char * name, uint32_t length);
1820
const char *table_case_name(HA_CREATE_INFO *info, const char *name);
1822
extern char reg_ext[FN_EXTLEN];
1823
extern uint32_t reg_ext_length;
1824
extern ulong specialflag;
1825
extern uint32_t lower_case_table_names;
1826
uint32_t filename_to_tablename(const char *from, char *to, uint32_t to_length);
1827
uint32_t tablename_to_filename(const char *from, char *to, uint32_t to_length);
2292
void trans_register_ha(THD *thd, bool all, handlerton *ht);
1831
2295
Storage engine has to assume the transaction will end up with 2pc if
1832
2296
- there is more than one 2pc-capable storage engine available
1833
2297
- in the current transaction 2pc was not disabled yet
1835
#define trans_need_2pc(session, all) ((total_ha_2pc > 1) && \
1836
!((all ? &session->transaction.all : &session->transaction.stmt)->no_2pc))
2299
#define trans_need_2pc(thd, all) ((total_ha_2pc > 1) && \
2300
!((all ? &thd->transaction.all : &thd->transaction.stmt)->no_2pc))
1838
#endif /* DRIZZLED_HANDLER_H */
2302
#ifdef HAVE_NDB_BINLOG
2303
int ha_reset_logs(THD *thd);
2304
int ha_binlog_index_purge_file(THD *thd, const char *file);
2305
void ha_reset_slave(THD *thd);
2306
void ha_binlog_log_query(THD *thd, handlerton *db_type,
2307
enum_binlog_command binlog_command,
2308
const char *query, uint query_length,
2309
const char *db, const char *table_name);
2310
void ha_binlog_wait(THD *thd);
2311
int ha_binlog_end(THD *thd);
2313
#define ha_reset_logs(a) do {} while (0)
2314
#define ha_binlog_index_purge_file(a,b) do {} while (0)
2315
#define ha_reset_slave(a) do {} while (0)
2316
#define ha_binlog_log_query(a,b,c,d,e,f,g) do {} while (0)
2317
#define ha_binlog_wait(a) do {} while (0)
2318
#define ha_binlog_end(a) do {} while (0)
added
removed
drizzled/handler.h
