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120 lines
3.9 KiB
120 lines
3.9 KiB
5 months ago
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#ifndef FAKE_KEY_INCLUDED
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#define FAKE_KEY_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 "my_config.h"
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#include <gtest/gtest.h>
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#include "my_dbug.h"
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#include "sql/key.h" // KEY
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/**
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A fake class to make it easy to set up a KEY object.
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Note that in this version the KEY object is only initialized with necessary
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information to do operations on rec_per_key.
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*/
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class Fake_KEY : public KEY {
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public:
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/**
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Initialize the KEY object.
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Only member variables needed for the rec_per_key interface are
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currently initialized.
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@param key_parts_arg number of key parts this index should have
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@param unique unique or non-unique key
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*/
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Fake_KEY(unsigned int key_parts_arg, bool unique) {
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init(key_parts_arg, key_parts_arg, unique);
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}
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/**
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Initialize the KEY object.
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Only member variables needed for the rec_per_key interface are
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currently initialized.
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@param user_defined_key_parts_arg number of key parts defined for index
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@param actual_key_parts_arg number of additional primary key parts
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included in index
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@param unique unique or non-unique key
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*/
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Fake_KEY(unsigned int user_defined_parts_arg,
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unsigned int actual_key_parts_arg, bool unique) {
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init(user_defined_parts_arg, actual_key_parts_arg, unique);
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}
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~Fake_KEY() {
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// free the memory for the two rec_per_key arrays
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delete[] m_rec_per_key;
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delete[] m_rec_per_key_float;
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}
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private:
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/**
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Initialize the KEY object.
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Only member variables needed for the rec_per_key interface are
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currently initialized.
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@param user_defined_key_parts_arg number of key parts defined for index
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@param actual_key_parts_arg number of additional primary key parts
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included in index
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@param unique unique or non-unique key
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*/
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void init(unsigned int user_defined_key_parts_arg,
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unsigned int actual_key_parts_arg, bool unique) {
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DBUG_ASSERT(user_defined_key_parts_arg > 0);
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DBUG_ASSERT(actual_key_parts_arg > 0);
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flags = 0;
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if (unique) flags |= HA_NOSAME;
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actual_flags = flags;
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user_defined_key_parts = user_defined_key_parts_arg;
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actual_key_parts = actual_key_parts_arg;
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// Allocate memory for the two rec_per_key arrays
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m_rec_per_key = new ulong[actual_key_parts];
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m_rec_per_key_float = new rec_per_key_t[actual_key_parts];
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set_rec_per_key_array(m_rec_per_key, m_rec_per_key_float);
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// Initialize the rec_per_key arrays with default/unknown value
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for (uint kp = 0; kp < actual_key_parts; kp++) {
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rec_per_key[kp] = 0;
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set_records_per_key(kp, REC_PER_KEY_UNKNOWN);
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}
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}
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// Storage for the two records per key arrays
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ulong *m_rec_per_key;
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rec_per_key_t *m_rec_per_key_float;
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};
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#endif /* FAKE_KEY_INCLUDED */
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