src/util/tests/sparse_array/multi_threaded.c

   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 #undef NDEBUG
  25
  26 #include "util/sparse_array.h"
  27
  28 #include <assert.h>
  29 #include <stdlib.h>
  30 #include "c11/threads.h"
  31
  32 #define NUM_THREADS 16
  33 #define NUM_RUNS 16
  34 #define NUM_SETS_PER_THREAD (1 << 10)
  35 #define MAX_ARR_SIZE (1 << 20)
  36
  37 static int
  38 test_thread(void *_state)
  39 {
  40    struct util_sparse_array *arr = _state;
  41    for (unsigned i = 0; i < NUM_SETS_PER_THREAD; i++) {
  42       uint32_t idx = rand() % MAX_ARR_SIZE;
  43       uint32_t *elem = util_sparse_array_get(arr, idx);
  44       *elem = idx;
  45    }
  46
  47    return 0;
  48 }
  49
  50 static void
  51 run_test(unsigned run_idx)
  52 {
  53    size_t node_size = 4 << (run_idx / 2);
  54
  55    struct util_sparse_array arr;
  56    util_sparse_array_init(&arr, sizeof(uint32_t), node_size);
  57
  58    thrd_t threads[NUM_THREADS];
  59    for (unsigned i = 0; i < NUM_THREADS; i++) {
  60       int ret = thrd_create(&threads[i], test_thread, &arr);
  61       assert(ret == thrd_success);
  62    }
  63
  64    for (unsigned i = 0; i < NUM_THREADS; i++) {
  65       int ret = thrd_join(threads[i], NULL);
  66       assert(ret == thrd_success);
  67    }
  68
  69    util_sparse_array_validate(&arr);
  70
  71    for (unsigned i = 0; i < MAX_ARR_SIZE; i++) {
  72       uint32_t *elem = util_sparse_array_get(&arr, i);
  73       assert(*elem == 0 || *elem == i);
  74    }
  75 }
  76
  77 int
  78 main(int argc, char **argv)
  79 {
  80    for (unsigned i = 0; i < NUM_RUNS; i++)
  81       run_test(i);
  82 }