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/* Copyright (c) 2018, 2025, Oracle and/or its affiliates.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is designed to work with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have either included with
the program or referenced in the documentation.
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, version 2.0, 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 */
#define LOG_COMPONENT_TAG "test_services_host_application_signal"
#include <mysql/components/my_service.h>
#include <mysql/components/services/log_builtins.h>
#include <mysql/components/services/my_host_application_signal.h>
#include <mysql/components/services/udf_registration.h>
#include <mysql/plugin.h>
#include <mysql_version.h>
#include <stddef.h>
REQUIRES_SERVICE_PLACEHOLDER(host_application_signal) = nullptr;
REQUIRES_SERVICE_PLACEHOLDER(udf_registration) = nullptr;
REQUIRES_SERVICE_PLACEHOLDER(registry) = nullptr;
REQUIRES_SERVICE_PLACEHOLDER(log_builtins) = nullptr;
REQUIRES_SERVICE_PLACEHOLDER(log_builtins_string) = nullptr;
static bool udf_registered = false;
static bool shutdown_at_init = false;
static MYSQL_SYSVAR_BOOL(shutdown_at_init, shutdown_at_init,
PLUGIN_VAR_OPCMDARG, "Call shutdown at init if true",
nullptr, nullptr, false);
static SYS_VAR *system_variables[] = {MYSQL_SYSVAR(shutdown_at_init), nullptr};
static long long test_shutdown_signal_udf(UDF_INIT *, UDF_ARGS *args,
unsigned char *,
unsigned char *error) {
if (args->arg_count > 0 && args->arg_type[0] == INT_RESULT) {
switch (*(reinterpret_cast<long long *>(args->args[0]))) {
case 1:
my_host_application_signal_shutdown(mysql_service_registry);
break;
case 0:
mysql_service_host_application_signal->signal(
HOST_APPLICATION_SIGNAL_SHUTDOWN, nullptr);
break;
case 2:
mysql_service_host_application_signal->signal(
HOST_APPLICATION_SIGNAL_LAST, nullptr);
break;
}
} else
*error = 1;
return 0;
}
static int plugin_deinit(void *p);
static int plugin_init(void *p) {
int rc = 0;
my_h_service h;
if (init_logging_service_for_plugin(&mysql_service_registry,
&mysql_service_log_builtins,
&mysql_service_log_builtins_string))
return 1;
if (shutdown_at_init &&
my_host_application_signal_shutdown(mysql_service_registry))
rc = 1;
if (mysql_service_registry->acquire("host_application_signal", &h))
rc = 1;
else
mysql_service_host_application_signal =
reinterpret_cast<SERVICE_TYPE_NO_CONST(host_application_signal) *>(h);
if (mysql_service_registry->acquire("udf_registration", &h))
rc = 1;
else
mysql_service_udf_registration =
reinterpret_cast<SERVICE_TYPE_NO_CONST(udf_registration) *>(h);
if (mysql_service_udf_registration) {
if (mysql_service_udf_registration->udf_register(
"test_shutdown_signal_udf", INT_RESULT,
reinterpret_cast<Udf_func_any>(test_shutdown_signal_udf), nullptr,
nullptr))
rc = 1;
else
udf_registered = true;
}
if (rc) plugin_deinit(p);
return rc;
}
static int plugin_deinit(void *) {
if (mysql_service_host_application_signal)
mysql_service_registry->release(reinterpret_cast<my_h_service>(
const_cast<SERVICE_TYPE_NO_CONST(host_application_signal) *>(
mysql_service_host_application_signal)));
if (mysql_service_udf_registration) {
if (udf_registered)
mysql_service_udf_registration->udf_unregister("test_shutdown_signal_udf",
nullptr);
mysql_service_registry->release(reinterpret_cast<my_h_service>(
const_cast<SERVICE_TYPE_NO_CONST(udf_registration) *>(
mysql_service_udf_registration)));
}
deinit_logging_service_for_plugin(&mysql_service_registry,
&mysql_service_log_builtins,
&mysql_service_log_builtins_string);
return 0;
}
static struct st_mysql_daemon plugin = {MYSQL_DAEMON_INTERFACE_VERSION};
mysql_declare_plugin(test_services_host_application_signal){
MYSQL_DAEMON_PLUGIN,
&plugin,
"test_services_host_application_signal",
PLUGIN_AUTHOR_ORACLE,
"test the plugin host application signal service",
PLUGIN_LICENSE_GPL,
plugin_init, /* Plugin Init */
nullptr, /* Plugin Check uninstall */
plugin_deinit, /* Plugin Deinit */
0x0100 /* 1.0 */,
nullptr, /* status variables */
system_variables,
nullptr, /* config options */
0, /* flags */
} mysql_declare_plugin_end;
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