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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (C) 2018 embedded brains GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <rtems/test.h>
#include <stdlib.h>
#ifdef __BIGGEST_ALIGNMENT__
#define T_BIGGEST_ALIGNMENT __BIGGEST_ALIGNMENT__
#else
#define T_BIGGEST_ALIGNMENT sizeof(long long)
#endif
typedef struct __attribute__((__aligned__(T_BIGGEST_ALIGNMENT))) {
T_destructor base;
void (*destroy)(void *);
} T_malloc_destructor;
static void
T_malloc_destroy(T_destructor *base)
{
T_malloc_destructor *dtor;
dtor = (T_malloc_destructor *)(uintptr_t)base;
if (dtor->destroy != NULL) {
(*dtor->destroy)(dtor + 1);
}
free(dtor);
}
static void *
T_do_malloc(size_t size, void (*destroy)(void *))
{
T_malloc_destructor *dtor;
size_t new_size;
new_size = sizeof(*dtor) + size;
if (new_size <= size) {
return NULL;
}
dtor = malloc(new_size);
if (dtor != NULL) {
dtor->destroy = destroy;
T_add_destructor(&dtor->base, T_malloc_destroy);
++dtor;
}
return dtor;
}
void *
T_malloc(size_t size)
{
return T_do_malloc(size, NULL);
}
void *
T_calloc(size_t nelem, size_t elsize)
{
return T_zalloc(nelem * elsize, NULL);
}
void *
T_zalloc(size_t size, void (*destroy)(void *))
{
void *p;
p = T_do_malloc(size, destroy);
if (p != NULL) {
p = memset(p, 0, size);
}
return p;
}
void
T_free(void *ptr)
{
T_malloc_destructor *dtor;
dtor = ptr;
--dtor;
T_remove_destructor(&dtor->base);
free(dtor);
}
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