1/*
2 * Copyright © 2019 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24#include "util/sparse_array.h"
25
26#include "c11/threads.h"
27
28#include <gtest/gtest.h>
29
30#define NUM_SETS_PER_THREAD (1 << 10)
31#define MAX_ARR_SIZE (1 << 20)
32
33static int
34test_thread(void *_state)
35{
36   struct util_sparse_array *arr = (struct util_sparse_array *)_state;
37   for (unsigned i = 0; i < NUM_SETS_PER_THREAD; i++) {
38      uint32_t idx = rand() % MAX_ARR_SIZE;
39      uint32_t *elem = (uint32_t *)util_sparse_array_get(arr, idx);
40      *elem = idx;
41   }
42
43   return 0;
44}
45
46TEST(SparseArrayTest, Multithread)
47{
48   const int num_runs = 16;
49
50   for (unsigned run_idx = 0; run_idx < num_runs; run_idx++) {
51      size_t node_size = 4 << (run_idx / 2);
52
53      struct util_sparse_array arr;
54      util_sparse_array_init(&arr, sizeof(uint32_t), node_size);
55
56      thrd_t threads[16];
57      for (unsigned i = 0; i < ARRAY_SIZE(threads); i++) {
58         int ret = thrd_create(&threads[i], test_thread, &arr);
59         ASSERT_EQ(ret, thrd_success);
60      }
61
62      for (unsigned i = 0; i < ARRAY_SIZE(threads); i++) {
63         int ret = thrd_join(threads[i], NULL);
64         ASSERT_EQ(ret, thrd_success);
65      }
66
67      util_sparse_array_validate(&arr);
68
69      for (unsigned i = 0; i < MAX_ARR_SIZE; i++) {
70         uint32_t *elem = (uint32_t *)util_sparse_array_get(&arr, i);
71         ASSERT_TRUE(*elem == 0 || *elem == i)
72            << "Element at index " << i << " is " << *elem
73            << " but expected zero or " << i;
74      }
75
76      util_sparse_array_finish(&arr);
77   }
78}
79