cryb-to/t/t_malloc.c
2022-09-16 11:09:55 +02:00

85 lines
2.5 KiB
C

/*-
* Copyright (c) 2017 Dag-Erling Smørgrav
* All rights reserved.
*
* 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.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 "cryb/impl.h"
#include <sys/types.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <cryb/test.h>
/*
* This test isn't very meaningful, but it does exercise the allocator.
* It's a little difficult to create meaningful tests when the code you're
* testing is the same as the code that runs your tests.
*/
static int
t_malloc_fill(char **desc CRYB_UNUSED, void *arg CRYB_UNUSED)
{
void *head, **next;
unsigned int i;
int ret, stmf;
ret = 1;
stmf = t_malloc_fatal;
t_malloc_fatal = 0;
head = NULL;
for (i = 0; (next = malloc(sizeof *next)) != NULL; ++i) {
*next = head;
head = next;
}
t_printv("%u successful allocations\n", i);
for (; (next = head) != NULL; --i) {
head = *next;
free(next);
}
ret &= t_is_zero_u(i);
t_malloc_fatal = stmf;
return (ret);
}
static int
t_prepare(int argc, char *argv[])
{
(void)argc;
(void)argv;
t_add_test(t_malloc_fill, NULL, "fill a bucket");
return (0);
}
int
main(int argc, char *argv[])
{
t_main(t_prepare, NULL, argc, argv);
}