79 lines
2.7 KiB
C++
79 lines
2.7 KiB
C++
/* Copyright (c) 2017, 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/component_status_var_service.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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struct SHOW_VAR;
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/**
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Its 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) the status variable service code because libsql code
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is not calling any functions of it.
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*/
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void mysql_comp_status_var_services_init() { return; }
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/**
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Register status variable.
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@param status_var fully constructed status variable object.
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@return Status of performed operation
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@retval false success
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@retval true failure
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Note: Please see the components/test/test_status_var_service.cc file,
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to know how to construct status varables for different variable types.
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*/
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DEFINE_BOOL_METHOD(mysql_status_variable_registration_imp::register_variable,
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(SHOW_VAR * status_var)) {
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try {
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if (add_status_vars(status_var)) return true;
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return false;
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} catch (...) {
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mysql_components_handle_std_exception(__func__);
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}
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return true;
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}
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/**
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Unregister's status variable.
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@param status_var SHOW_VAR object with only the name of the variable,
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which has to be removed from the global list.
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@return Status of performed operation
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@retval false success
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@retval true failure
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*/
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DEFINE_BOOL_METHOD(mysql_status_variable_registration_imp::unregister_variable,
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(SHOW_VAR * status_var)) {
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try {
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remove_status_vars(status_var);
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return false;
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} catch (...) {
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mysql_components_handle_std_exception(__func__);
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}
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return true;
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}
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