f57df4b967
parse_query and query_is_parsed are not used outside query classifier anymore. Consequently, they can be made internal.
110 lines
4.3 KiB
C
110 lines
4.3 KiB
C
#ifndef QUERY_CLASSIFIER_HG
|
|
#define QUERY_CLASSIFIER_HG
|
|
/*
|
|
This file is distributed as part of the MariaDB Corporation MaxScale. It 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.
|
|
|
|
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., 51
|
|
Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
Copyright MariaDB Corporation Ab
|
|
|
|
*/
|
|
|
|
/** getpid */
|
|
#include <my_config.h>
|
|
#include <unistd.h>
|
|
#include <mysql.h>
|
|
#include <skygw_utils.h>
|
|
#include <buffer.h>
|
|
|
|
EXTERN_C_BLOCK_BEGIN
|
|
|
|
/**
|
|
* Query type for skygateway.
|
|
* The meaninful difference is where operation is done and whether master data
|
|
* is modified
|
|
*/
|
|
typedef enum
|
|
{
|
|
QUERY_TYPE_UNKNOWN = 0x000000, /*< Initial value, can't be tested bitwisely */
|
|
QUERY_TYPE_LOCAL_READ = 0x000001, /*< Read non-database data, execute in MaxScale:any */
|
|
QUERY_TYPE_READ = 0x000002, /*< Read database data:any */
|
|
QUERY_TYPE_WRITE = 0x000004, /*< Master data will be modified:master */
|
|
QUERY_TYPE_MASTER_READ = 0x000008, /*< Read from the master:master */
|
|
QUERY_TYPE_SESSION_WRITE = 0x000010, /*< Session data will be modified:master or all */
|
|
/** Not implemented yet */
|
|
// QUERY_TYPE_USERVAR_WRITE = 0x000020, /*< Write a user variable:master or all */
|
|
QUERY_TYPE_USERVAR_READ = 0x000040, /*< Read a user variable:master or any */
|
|
QUERY_TYPE_SYSVAR_READ = 0x000080, /*< Read a system variable:master or any */
|
|
/** Not implemented yet */
|
|
// QUERY_TYPE_SYSVAR_WRITE = 0x000100, /*< Write a system variable:master or all */
|
|
QUERY_TYPE_GSYSVAR_READ = 0x000200, /*< Read global system variable:master or any */
|
|
QUERY_TYPE_GSYSVAR_WRITE = 0x000400, /*< Write global system variable:master or all */
|
|
QUERY_TYPE_BEGIN_TRX = 0x000800, /*< BEGIN or START TRANSACTION */
|
|
QUERY_TYPE_ENABLE_AUTOCOMMIT = 0x001000, /*< SET autocommit=1 */
|
|
QUERY_TYPE_DISABLE_AUTOCOMMIT = 0x002000, /*< SET autocommit=0 */
|
|
QUERY_TYPE_ROLLBACK = 0x004000, /*< ROLLBACK */
|
|
QUERY_TYPE_COMMIT = 0x008000, /*< COMMIT */
|
|
QUERY_TYPE_PREPARE_NAMED_STMT = 0x010000, /*< Prepared stmt with name from user:all */
|
|
QUERY_TYPE_PREPARE_STMT = 0x020000, /*< Prepared stmt with id provided by server:all */
|
|
QUERY_TYPE_EXEC_STMT = 0x040000, /*< Execute prepared statement:master or any */
|
|
QUERY_TYPE_CREATE_TMP_TABLE = 0x080000, /*< Create temporary table:master (could be all) */
|
|
QUERY_TYPE_READ_TMP_TABLE = 0x100000, /*< Read temporary table:master (could be any) */
|
|
QUERY_TYPE_SHOW_DATABASES = 0x200000, /*< Show list of databases */
|
|
QUERY_TYPE_SHOW_TABLES = 0x400000 /*< Show list of tables */
|
|
} qc_query_type_t;
|
|
|
|
typedef enum
|
|
{
|
|
QUERY_OP_UNDEFINED = 0,
|
|
QUERY_OP_SELECT = 1,
|
|
QUERY_OP_UPDATE = (1 << 1),
|
|
QUERY_OP_INSERT = (1 << 2),
|
|
QUERY_OP_DELETE = (1 << 3),
|
|
QUERY_OP_INSERT_SELECT = (1 << 4),
|
|
QUERY_OP_TRUNCATE = (1 << 5),
|
|
QUERY_OP_ALTER_TABLE = (1 << 6),
|
|
QUERY_OP_CREATE_TABLE = (1 << 7),
|
|
QUERY_OP_CREATE_INDEX = (1 << 8),
|
|
QUERY_OP_DROP_TABLE = (1 << 9),
|
|
QUERY_OP_DROP_INDEX = (1 << 10),
|
|
QUERY_OP_CHANGE_DB = (1 << 11),
|
|
QUERY_OP_LOAD = (1 << 12)
|
|
} qc_query_op_t;
|
|
|
|
#define QUERY_IS_TYPE(mask,type) ((mask & type) == type)
|
|
|
|
/**
|
|
* Create THD and use it for creating parse tree. Examine parse tree and
|
|
* classify the query.
|
|
*/
|
|
qc_query_type_t qc_get_type(GWBUF* querybuf);
|
|
qc_query_op_t qc_get_operation(GWBUF* querybuf);
|
|
|
|
#if defined(NOT_USED)
|
|
char* qc_get_stmtname(GWBUF* buf);
|
|
#endif
|
|
|
|
char* qc_get_created_table_name(GWBUF* querybuf);
|
|
bool qc_is_drop_table_query(GWBUF* querybuf);
|
|
bool qc_is_real_query(GWBUF* querybuf);
|
|
char** qc_get_table_names(GWBUF* querybuf, int* tblsize, bool fullnames);
|
|
char* qc_get_canonical(GWBUF* querybuf);
|
|
bool qc_query_has_clause(GWBUF* buf);
|
|
char* qc_get_qtype_str(qc_query_type_t qtype);
|
|
char* qc_get_affected_fields(GWBUF* buf);
|
|
char** qc_get_database_names(GWBUF* querybuf, int* size);
|
|
|
|
EXTERN_C_BLOCK_END
|
|
|
|
#endif
|