mirror of
https://github.com/MariaDB/server.git
synced 2025-01-16 03:52:35 +01:00
0c5bc2eafc
Implementing -v command line parameter to mysqlbinlog to decode and print row events. mysql-test/include/mysqlbinlog_row_engine.inc mysql-test/r/mysqlbinlog_row.result mysql-test/r/mysqlbinlog_row_big.result mysql-test/r/mysqlbinlog_row_innodb.result mysql-test/r/mysqlbinlog_row_myisam.result mysql-test/r/mysqlbinlog_row_trans.result mysql-test/t/mysqlbinlog_row.test mysql-test/t/mysqlbinlog_row_big.test mysql-test/t/mysqlbinlog_row_innodb.test mysql-test/t/mysqlbinlog_row_myisam.test mysql-test/t/mysqlbinlog_row_trans.test Adding tests client/Makefile.am Adding new files to symlink client/mysqlbinlog.cc Adding -v option sql/log_event.cc Impelentations of the new methods sql/log_event.h Declaration of the new methods and member sql/mysql_priv.h Adding new function prototype sql/rpl_tblmap.cc Adding pre-processor conditions sql/rpl_tblmap.h Adding pre-processor conditions sql/rpl_utility.h Adding pre-processor conditions sql/sql_base.cc Adding reset_table_id_sequence() function. sql/sql_repl.cc Resetting table_id on "RESET MASTER" .bzrignore Ignoring new symlinked files
111 lines
2.9 KiB
C++
111 lines
2.9 KiB
C++
/* 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; 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
|
|
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 */
|
|
|
|
#ifndef TABLE_MAPPING_H
|
|
#define TABLE_MAPPING_H
|
|
|
|
/* Forward declarations */
|
|
#ifndef MYSQL_CLIENT
|
|
struct st_table;
|
|
typedef st_table TABLE;
|
|
#else
|
|
class Table_map_log_event;
|
|
typedef Table_map_log_event TABLE;
|
|
void free_table_map_log_event(TABLE *table);
|
|
#endif
|
|
|
|
|
|
/*
|
|
CLASS table_mapping
|
|
|
|
RESPONSIBILITIES
|
|
The table mapping is used to map table id's to table pointers
|
|
|
|
COLLABORATION
|
|
RELAY_LOG For mapping table id:s to tables when receiving events.
|
|
*/
|
|
|
|
/*
|
|
Guilhem to Mats:
|
|
in the table_mapping class, the memory is allocated and never freed (until
|
|
destruction). So this is a good candidate for allocating inside a MEM_ROOT:
|
|
it gives the efficient allocation in chunks (like in expand()). So I have
|
|
introduced a MEM_ROOT.
|
|
|
|
Note that inheriting from Sql_alloc had no effect: it has effects only when
|
|
"ptr= new table_mapping" is called, and this is never called. And it would
|
|
then allocate from thd->mem_root which is a highly volatile object (reset
|
|
from example after executing each query, see dispatch_command(), it has a
|
|
free_root() at end); as the table_mapping object is supposed to live longer
|
|
than a query, it was dangerous.
|
|
A dedicated MEM_ROOT needs to be used, see below.
|
|
*/
|
|
|
|
class table_mapping {
|
|
|
|
private:
|
|
MEM_ROOT m_mem_root;
|
|
|
|
public:
|
|
|
|
enum enum_error {
|
|
ERR_NO_ERROR = 0,
|
|
ERR_LIMIT_EXCEEDED,
|
|
ERR_MEMORY_ALLOCATION
|
|
};
|
|
|
|
table_mapping();
|
|
~table_mapping();
|
|
|
|
TABLE* get_table(ulong table_id);
|
|
|
|
int set_table(ulong table_id, TABLE* table);
|
|
int remove_table(ulong table_id);
|
|
void clear_tables();
|
|
ulong count() const { return m_table_ids.records; }
|
|
|
|
private:
|
|
/*
|
|
This is a POD (Plain Old Data). Keep it that way (we apply offsetof() to
|
|
it, which only works for PODs)
|
|
*/
|
|
struct entry {
|
|
ulong table_id;
|
|
union {
|
|
TABLE *table;
|
|
entry *next;
|
|
};
|
|
};
|
|
|
|
entry *find_entry(ulong table_id)
|
|
{
|
|
return (entry *)hash_search(&m_table_ids,
|
|
(uchar*)&table_id,
|
|
sizeof(table_id));
|
|
}
|
|
int expand();
|
|
|
|
/*
|
|
Head of the list of free entries; "free" in the sense that it's an
|
|
allocated entry free for use, NOT in the sense that it's freed
|
|
memory.
|
|
*/
|
|
entry *m_free;
|
|
|
|
/* Correspondance between an id (a number) and a TABLE object */
|
|
HASH m_table_ids;
|
|
};
|
|
|
|
#endif
|