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85 lines
2.8 KiB
85 lines
2.8 KiB
3 months ago
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/* Copyright (c) 2014, 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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// First include (the generated) my_config.h, to get correct platform defines.
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#include <gtest/gtest.h>
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#include "my_config.h"
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#include <stdlib.h>
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#include <string.h>
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namespace calloc_unittest {
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/*
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Set num_iterations to a reasonable value (e.g. 200000), build release
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and run with 'calloc-t --disable-tap-output' to see the time taken.
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*/
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#if !defined(DBUG_OFF)
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// There is no point in benchmarking anything in debug mode.
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static int num_iterations = 2;
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#else
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// Set this so that each test case takes a few seconds.
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// And set it back to a small value before pushing!!
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static int num_iterations = 2000;
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#endif
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class CallocTest : public ::testing::Test {
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protected:
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CallocTest() {}
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void malloc_test(int count);
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void calloc_test(int count);
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};
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void CallocTest::malloc_test(int count) {
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for (int i = 1; i <= count; i++) {
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size_t size = i * 10;
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void *rawmem1 = malloc(size);
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memset(rawmem1, 0, size);
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void *rawmem2 = malloc(size);
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memset(rawmem2, 0, size);
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// We need to prevent the optimizer from removing the whole loop.
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EXPECT_FALSE(memcmp(rawmem1, rawmem2, 1));
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free(rawmem1);
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free(rawmem2);
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}
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}
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void CallocTest::calloc_test(int count) {
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for (int i = 1; i <= count; i++) {
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size_t size = i * 10;
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void *rawmem1 = calloc(size, 1);
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void *rawmem2 = calloc(size, 1);
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// We need to prevent the optimizer from removing the whole loop.
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EXPECT_FALSE(memcmp(rawmem1, rawmem2, 1));
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free(rawmem1);
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free(rawmem2);
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}
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}
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TEST_F(CallocTest, WarmupTest) { calloc_test(num_iterations); }
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TEST_F(CallocTest, MallocTest) { malloc_test(num_iterations); }
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TEST_F(CallocTest, CallocTest) { calloc_test(num_iterations); }
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} // namespace calloc_unittest
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