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77 lines
2.4 KiB
77 lines
2.4 KiB
5 months ago
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#ifndef FAKE_COSTMODEL_INCLUDED
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#define FAKE_COSTMODEL_INCLUDED
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/*
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Copyright (c) 2014, 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 <stddef.h>
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#include "sql/opt_costconstants.h"
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#include "sql/opt_costmodel.h"
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/**
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This is is a "fake" cost model that can be used in unit tests that
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do not link with the server libraries.
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*/
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class Fake_Cost_model_server : public Cost_model_server {
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public:
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Fake_Cost_model_server() {
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// Create default values for server cost constants
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m_server_cost_constants = new Server_cost_constants();
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#if !defined(DBUG_OFF)
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m_initialized = true;
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#endif
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}
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~Fake_Cost_model_server() {
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delete m_server_cost_constants;
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m_server_cost_constants = NULL;
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}
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};
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class Fake_Cost_model_table : public Cost_model_table {
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public:
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Fake_Cost_model_table() {
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// Create a fake cost model server object that will provide
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// cost constants for server operations
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m_cost_model_server = new Fake_Cost_model_server();
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// Allocate cost constants for operations on tables
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m_se_cost_constants = new SE_cost_constants();
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#if !defined(DBUG_OFF)
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m_initialized = true;
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#endif
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}
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~Fake_Cost_model_table() {
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delete m_cost_model_server;
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m_cost_model_server = NULL;
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delete m_se_cost_constants;
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m_se_cost_constants = NULL;
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}
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};
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#endif /* FAKE_COSTMODEL_INCLUDED */
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