76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
/* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#include <components/mysql_server/host_application_signal_imp.h>
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#include "my_config.h"
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#include "mysqld_error.h"
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#include <components/mysql_server/server_component.h>
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#include <mysql/components/service_implementation.h>
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#include <mysql/components/services/log_builtins.h>
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#include <mysql_version.h>
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#include <sql/mysqld.h>
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/**
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A dummy initialization function. And it will be called from
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server_component_init(). Else linker, is cutting out (as library
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optimization) this file's code because libsql code
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is not calling any functions of it.
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*/
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void host_application_signal_imp_init() { return; }
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/**
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Process signals for the mysql server binary.
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Signals accepted:
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- @ref HOST_APPLICATION_SIGNAL_SHUTDOWN Initiate a normal server
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shutdown by calling kill_mysql(). Ignore the argument. Also log
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a message to the server log at start.
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@param signal_no one of @ref host_application_signal_signals
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@param arg Signal argument. Currently ignored.
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@retval false success
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@retval true failure
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@sa mysql_service_host_application_signal_t
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*/
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DEFINE_BOOL_METHOD(mysql_component_host_application_signal_imp::signal,
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(int signal_no, void * /* arg */)) {
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bool retval = false;
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try {
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switch (signal_no) {
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case HOST_APPLICATION_SIGNAL_SHUTDOWN:
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LogErr(SYSTEM_LEVEL, ER_SERVER_SHUTDOWN_INFO,
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"<internal signal component service>", server_version,
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MYSQL_COMPILATION_COMMENT_SERVER);
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kill_mysql();
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break;
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default:
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retval = true;
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break;
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}
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} catch (...) {
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mysql_components_handle_std_exception(__func__);
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}
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return retval;
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}
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