mirror of
https://github.com/MariaDB/server.git
synced 2025-11-04 12:56:14 +01:00
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/* Copyright (c) 2008, 2023, Oracle and/or its affiliates.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License, version 2.0,
|
|
as published by the Free Software Foundation.
|
|
|
|
This program is also distributed with certain software (including
|
|
but not limited to OpenSSL) that is licensed under separate terms,
|
|
as designated in a particular file or component or in included license
|
|
documentation. The authors of MySQL hereby grant you an additional
|
|
permission to link the program and your derivative works with the
|
|
separately licensed software that they have included with MySQL.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License, version 2.0, for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software Foundation,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
|
|
|
|
#include <my_global.h>
|
|
#include <my_sys.h>
|
|
#include <pfs_global.h>
|
|
#include "aligned.h"
|
|
#include "assume_aligned.h"
|
|
|
|
bool pfs_initialized= false;
|
|
|
|
void *pfs_malloc(PFS_builtin_memory_class *klass, size_t size, myf flags)
|
|
{
|
|
size= MY_ALIGN(size, CPU_LEVEL1_DCACHE_LINESIZE);
|
|
void *ptr= aligned_malloc(size, CPU_LEVEL1_DCACHE_LINESIZE);
|
|
if (ptr && (flags & MY_ZEROFILL))
|
|
memset_aligned<CPU_LEVEL1_DCACHE_LINESIZE>(ptr, 0, size);
|
|
return ptr;
|
|
}
|
|
|
|
void pfs_free(PFS_builtin_memory_class *, size_t, void *ptr)
|
|
{
|
|
aligned_free(ptr);
|
|
}
|
|
|
|
void *pfs_malloc_array(PFS_builtin_memory_class *klass, size_t n, size_t size, myf flags)
|
|
{
|
|
size_t array_size= n * size;
|
|
/* Check for overflow before allocating. */
|
|
if (is_overflow(array_size, n, size))
|
|
return NULL;
|
|
return pfs_malloc(klass, array_size, flags);
|
|
}
|
|
|
|
void pfs_free_array(PFS_builtin_memory_class *klass, size_t n, size_t size, void *ptr)
|
|
{
|
|
if (ptr == NULL)
|
|
return;
|
|
size_t array_size= n * size;
|
|
return pfs_free(klass, array_size, ptr);
|
|
}
|
|
|
|
bool is_overflow(size_t product, size_t n1, size_t n2)
|
|
{
|
|
if (n1 != 0 && (product / n1 != n2))
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
void pfs_print_error(const char *format, ...)
|
|
{
|
|
/* Do not pollute the unit test output with annoying messages. */
|
|
}
|
|
|