mysql5/mysql-5.7.27/plugin/udf_services/test_udf_services.cc

102 lines
3.2 KiB
C++

/* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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 St, Fifth Floor, Boston, MA 02110-1301 USA */
#include <my_global.h>
#include <mysql_version.h>
#include <mysql/plugin.h>
#include <mysql_com.h>
/**
@file test_udf_services.cc
This is a test suite plugin to verify that plugins can co-exist with UDFs.
The file defines one DAEMON plugin @ref test_udf_services_plugin and one
UDF function: @ref test_udf_services_udf.
The test then checks if the plugin can be unloaded and loaded while the
UDF is defined.
No user-facing functionality in this plugin. Just test material !
*/
static struct st_mysql_daemon test_udf_services_plugin=
{ MYSQL_DAEMON_INTERFACE_VERSION };
mysql_declare_plugin(test_udf_services)
{
MYSQL_DAEMON_PLUGIN,
&test_udf_services_plugin,
"test_udf_services",
"Georgi Kodinov",
"MySQL mtr test framework",
PLUGIN_LICENSE_GPL,
NULL, /* Plugin Init */
NULL, /* Plugin Deinit */
0x0100, /* Plugin version: 1.0 */
NULL, /* status variables */
NULL, /* system variables */
NULL, /* config options */
0, /* flags */
}
mysql_declare_plugin_end;
#ifdef WIN32
#define PLUGIN_EXPORT extern "C" __declspec(dllexport)
#else
#define PLUGIN_EXPORT extern "C"
#endif
/**
Initialization function for @ref test_udf_services_udf
Must be present otherwise the server refuses to load
@param initrd Return value from xxxx_init
@param args Array of arguments
@param[out] message Error message in case of error.
@retval FALSE success
@retval TRUE Failure. Error in the message argument
*/
PLUGIN_EXPORT my_bool
test_udf_services_udf_init(UDF_INIT *initid MY_ATTRIBUTE((unused)),
UDF_ARGS *args MY_ATTRIBUTE((unused)),
char *message MY_ATTRIBUTE((unused)))
{
return FALSE;
}
/**
A UDF function returning 0.
@param initrd Return value from xxxx_init
@param args Array of arguments
@param[out] is_null If the result is null, store 1 here
@param[out] error On error store 1 here
*/
PLUGIN_EXPORT longlong
test_udf_services_udf(UDF_INIT *initid MY_ATTRIBUTE((unused)),
UDF_ARGS *args MY_ATTRIBUTE((unused)),
char *is_null MY_ATTRIBUTE((unused)),
char *error MY_ATTRIBUTE((unused)))
{
char buffer[10];
*is_null= 0;
*error= 0;
/* use a plugin service function */
my_snprintf(buffer, sizeof(buffer), "test");
return 0;
}