56 lines
2.2 KiB
C
56 lines
2.2 KiB
C
/* Copyright (c) 2022, 2024, Oracle and/or its affiliates.
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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 designed to work 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 either included with
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the program or referenced in the documentation.
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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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#ifndef __MY_ALIGNED_MALLOC_H__
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#define __MY_ALIGNED_MALLOC_H__
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#include <cstddef>
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/**
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Function allocates size bytes and returns a pointer to the allocated memory.
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Size and alignment parameters depend on platform on which the function is
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executed. Please check posix_memalign, memalign and _aligned_malloc functions
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for details. To conform with all platforms size should be multiple of aligment
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and aligment should be power of two.
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We can use C++17 aligned new/aligned delete on non-windows platforms once the
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minimum supported version of tcmalloc becomes >= 2.6.2. Right now TC malloc
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crashes.
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@param[in] size Multiple of alignment.
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@param[in] alignment Memory aligment, which must be power of two.
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@return Pointer to allocated memory.
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@see my_aligned_free
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*/
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void *my_aligned_malloc(size_t size, size_t alignment);
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/**
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Free allocated memory using my_aligned_malloc function.
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@param[in] ptr Pointer to allocated memory using my_aligned_malloc function.
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*/
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void my_aligned_free(void *ptr);
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#endif /* __MY_ALIGNED_MALLOC_H__ */
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