88 lines
2.9 KiB
C++
88 lines
2.9 KiB
C++
/*
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Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
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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, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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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, version 2.0, 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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*/
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#ifndef NDB_EVENT_DATA_H
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#define NDB_EVENT_DATA_H
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#include "my_alloc.h" // MEM_ROOT
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#include "storage/ndb/plugin/ndb_bitmap.h"
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namespace dd {
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class Table;
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}
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struct NDB_SHARE;
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struct TABLE;
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union NdbValue;
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/*
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Ndb_event_data holds information related to
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receiving events from NDB. It's created when
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the table is setup for binlogging or schema
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distribution.
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*/
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class Ndb_event_data {
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Ndb_event_data() = delete;
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Ndb_event_data(const Ndb_event_data &) = delete;
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Ndb_event_data(NDB_SHARE *the_share, size_t num_columns);
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~Ndb_event_data();
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void init_stored_columns();
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void init_pk_bitmap();
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TABLE *open_shadow_table(class THD *thd, const char *db,
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const char *table_name, const char *key,
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const dd::Table *table_def, class THD *owner_thd);
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public:
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MEM_ROOT mem_root;
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TABLE *shadow_table;
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NDB_SHARE *share;
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NdbValue *ndb_value[2];
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// Bitmap with all stored columns
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MY_BITMAP stored_columns;
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/* Bitmap with all primary key columns. */
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MY_BITMAP pk_bitmap;
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// The NDB table have blobs
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bool have_blobs;
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void generate_minimal_bitmap(MY_BITMAP *before, MY_BITMAP *after) const;
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// Factory function to create Ndb_event_data, open the shadow_table and
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// initialize bitmaps.
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static Ndb_event_data *create_event_data(
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class THD *thd, NDB_SHARE *share, const char *db, const char *table_name,
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const char *key, class THD *owner_thd, const dd::Table *table_def);
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static void destroy(const Ndb_event_data *);
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// Read uint32 value directly from NdbRecAttr in received event
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uint32 unpack_uint32(unsigned attr_id) const;
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// Read string value directly from NdbRecAttr in received event
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const char *unpack_string(unsigned attr_id) const;
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};
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#endif
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