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MDEV-19275 Provide SQL service to plugins.

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SQL service added.
It provides the limited set of client library functions
to be used by plugin.
This commit is contained in:
Alexey Botchkov
2021-09-06 22:34:35 +04:00
committed by Oleksandr Byelkin
parent 401ff6994d
commit 0a0dfd63d9
25 changed files with 701 additions and 253 deletions
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99
include/mysql/service_sql.h Normal file
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/* Copyright (C) 2021 MariaDB Corporation
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., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA */
#if defined(MYSQL_SERVER) && !defined MYSQL_SERVICE_SQL
#define MYSQL_SERVICE_SQL
#include <mysql.h>
/**
@file
SQL service
Interface for plugins to execute SQL queries on the local server.
Functions of the service are the 'server-limited' client library:
mysql_init
mysql_real_connect_local
mysql_real_connect
mysql_errno
mysql_error
mysql_real_query
mysql_affected_rows
mysql_num_rows
mysql_store_result
mysql_free_result
mysql_fetch_row
mysql_close
*/
#ifdef __cplusplus
extern "C" {
#endif
extern struct sql_service_st {
MYSQL *(STDCALL *mysql_init)(MYSQL *mysql);
MYSQL *(*mysql_real_connect_local)(MYSQL *mysql,
const char *host, const char *user, const char *db,
unsigned long clientflag);
MYSQL *(STDCALL *mysql_real_connect)(MYSQL *mysql, const char *host,
const char *user, const char *passwd, const char *db, unsigned int port,
const char *unix_socket, unsigned long clientflag);
unsigned int(STDCALL *mysql_errno)(MYSQL *mysql);
const char *(STDCALL *mysql_error)(MYSQL *mysql);
int (STDCALL *mysql_real_query)(MYSQL *mysql, const char *q,
unsigned long length);
my_ulonglong (STDCALL *mysql_affected_rows)(MYSQL *mysql);
my_ulonglong (STDCALL *mysql_num_rows)(MYSQL_RES *res);
MYSQL_RES *(STDCALL *mysql_store_result)(MYSQL *mysql);
void (STDCALL *mysql_free_result)(MYSQL_RES *result);
MYSQL_ROW (STDCALL *mysql_fetch_row)(MYSQL_RES *result);
void (STDCALL *mysql_close)(MYSQL *sock);
} *sql_service;
#ifdef MYSQL_DYNAMIC_PLUGIN
#define mysql_init sql_service->mysql_init
#define mysql_real_connect_local sql_service->mysql_real_connect_local
#define mysql_real_connect sql_service->mysql_real_connect
#define mysql_errno(M) sql_service->mysql_errno(M)
#define mysql_error(M) sql_service->mysql_error(M)
#define mysql_real_query sql_service->mysql_real_query
#define mysql_affected_rows sql_service->mysql_affected_rows
#define mysql_num_rows sql_service->mysql_num_rows
#define mysql_store_result sql_service->mysql_store_result
#define mysql_free_result sql_service->mysql_free_result
#define mysql_fetch_row sql_service->mysql_fetch_row
#define mysql_close sql_service->mysql_close
#else
MYSQL *mysql_real_connect_local(MYSQL *mysql,
const char *host, const char *user, const char *db,
unsigned long clientflag);
/* The rest of the function declarations mest be taken from the mysql.h */
#endif /*MYSQL_DYNAMIC_PLUGIN*/
#ifdef __cplusplus
}
#endif
#endif /*MYSQL_SERVICE_SQL */