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/* Copyright (c) 2008, 2015, Oracle and/or its affiliates. All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
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 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, Suite 500, Boston, MA 02110-1335 USA */
#include <my_global.h>
#include <my_sys.h>
#include <pfs_global.h>
#include <string.h>
bool pfs_initialized= false;
bool stub_alloc_always_fails= true;
int stub_alloc_fails_after_count= 0;
void *pfs_malloc(size_t size, myf)
{
/*
Catch non initialized sizing parameter in the unit tests.
*/
DBUG_ASSERT(size <= 100*1024*1024);
if (stub_alloc_always_fails)
return NULL;
if (--stub_alloc_fails_after_count <= 0)
return NULL;
void *ptr= malloc(size);
if (ptr != NULL)
memset(ptr, 0, size);
return ptr;
}
void pfs_free(void *ptr)
{
if (ptr != NULL)
free(ptr);
}
void *pfs_malloc_array(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(array_size, flags);
}
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, ...)
{
}
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