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/*
* Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <string.h>
#include <openssl/opensslconf.h>
#include <internal/priority_queue.h>
#include <openssl/err.h>
#include <openssl/crypto.h>
#include "internal/nelem.h"
#include "testutil.h"
#define MAX_SAMPLES 500000
DEFINE_PRIORITY_QUEUE_OF(size_t);
static size_t num_rec_freed;
static int size_t_compare(const size_t *a, const size_t *b)
{
if (*a < *b)
return -1;
if (*a > *b)
return 1;
return 0;
}
static int qsort_size_t_compare(const void *a, const void *b)
{
return size_t_compare((size_t *)a, (size_t *)b);
}
static int qsort_size_t_compare_rev(const void *a, const void *b)
{
return size_t_compare((size_t *)b, (size_t *)a);
}
static void free_checker(ossl_unused size_t *p)
{
num_rec_freed++;
}
static int test_size_t_priority_queue_int(int reserve, int order, int count,
int remove, int random, int popfree)
{
PRIORITY_QUEUE_OF(size_t) *pq = NULL;
static size_t values[MAX_SAMPLES], sorted[MAX_SAMPLES], ref[MAX_SAMPLES];
size_t n;
int i, res = 0;
static const char *orders[3] = { "unordered", "ascending", "descending" };
TEST_info("testing count %d, %s, %s, values %s, remove %d, %sfree",
count, orders[order], reserve ? "reserve" : "grow",
random ? "random" : "deterministic", remove,
popfree ? "pop " : "");
if (!TEST_size_t_le(count, MAX_SAMPLES))
return 0;
memset(values, 0, sizeof(values));
memset(sorted, 0, sizeof(sorted));
memset(ref, 0, sizeof(ref));
for (i = 0; i < count; i++)
values[i] = random ? test_random() : (size_t)(count - i);
memcpy(sorted, values, sizeof(*sorted) * count);
qsort(sorted, count, sizeof(*sorted), &qsort_size_t_compare);
if (order == 1)
memcpy(values, sorted, sizeof(*values) * count);
else if (order == 2)
qsort(values, count, sizeof(*values), &qsort_size_t_compare_rev);
if (!TEST_ptr(pq = ossl_pqueue_size_t_new(&size_t_compare))
|| !TEST_size_t_eq(ossl_pqueue_size_t_num(pq), 0))
goto err;
if (reserve && !TEST_true(ossl_pqueue_size_t_reserve(pq, count)))
goto err;
for (i = 0; i < count; i++)
if (!TEST_true(ossl_pqueue_size_t_push(pq, values + i, ref + i)))
goto err;
if (!TEST_size_t_eq(*ossl_pqueue_size_t_peek(pq), *sorted)
|| !TEST_size_t_eq(ossl_pqueue_size_t_num(pq), count))
goto err;
if (remove) {
while (remove-- > 0) {
i = test_random() % count;
if (values[i] != SIZE_MAX) {
if (!TEST_ptr_eq(ossl_pqueue_size_t_remove(pq, ref[i]),
values + i))
goto err;
values[i] = SIZE_MAX;
}
}
memcpy(sorted, values, sizeof(*sorted) * count);
qsort(sorted, count, sizeof(*sorted), &qsort_size_t_compare);
}
for (i = 0; ossl_pqueue_size_t_peek(pq) != NULL; i++)
if (!TEST_size_t_eq(*ossl_pqueue_size_t_peek(pq), sorted[i])
|| !TEST_size_t_eq(*ossl_pqueue_size_t_pop(pq), sorted[i]))
goto err;
if (popfree) {
num_rec_freed = 0;
n = ossl_pqueue_size_t_num(pq);
ossl_pqueue_size_t_pop_free(pq, &free_checker);
pq = NULL;
if (!TEST_size_t_eq(num_rec_freed, n))
goto err;
}
res = 1;
err:
ossl_pqueue_size_t_free(pq);
return res;
}
static const int test_size_t_priority_counts[] = {
10, 11, 6, 5, 3, 1, 2, 7500
};
static int test_size_t_priority_queue(int n)
{
int reserve, order, count, remove, random, popfree;
count = n % OSSL_NELEM(test_size_t_priority_counts);
n /= OSSL_NELEM(test_size_t_priority_counts);
order = n % 3;
n /= 3;
random = n % 2;
n /= 2;
reserve = n % 2;
n /= 2;
remove = n % 6;
n /= 6;
popfree = n % 2;
count = test_size_t_priority_counts[count];
return test_size_t_priority_queue_int(reserve, order, count, remove,
random, popfree);
}
static int test_large_priority_queue(void)
{
return test_size_t_priority_queue_int(0, 0, MAX_SAMPLES, MAX_SAMPLES / 100,
1, 1);
}
int setup_tests(void)
{
ADD_ALL_TESTS(test_size_t_priority_queue,
OSSL_NELEM(test_size_t_priority_counts) /* count */
* 3 /* order */
* 2 /* random */
* 2 /* reserve */
* 6 /* remove */
* 2); /* pop & free */
ADD_TEST(test_large_priority_queue);
return 1;
}
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