1 /* A few tests for the xbt_heap module */
3 /* Copyright (c) 2004-2010, 2012-2015. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
11 #include <xbt/xbt_os_time.h>
14 #include "xbt/sysdep.h" /* calloc, printf */
16 #define MAX_TEST 1000000
18 int compare_double(const void *a, const void *b);
20 void test_heap_validity(int size);
21 void test_heap_mean_operation(int size);
22 void test_reset_heap(xbt_heap_t * heap, int size);
25 int compare_double(const void *a, const void *b)
39 void test_heap_validity(int size)
41 xbt_heap_t heap = xbt_heap_new(size, NULL);
42 double *tab = xbt_new0(double, size);
46 for (i = 0; i < size; i++) {
47 tab[i] = (double) (10.0 * rand() / (RAND_MAX + 1.0));
48 xbt_heap_push(heap, NULL, (double) tab[i]);
51 qsort(tab, size, sizeof(double), compare_double);
53 for (i = 0; i < size; i++) {
54 /* printf("%g" " ", xbt_heap_maxkey(heap)); */
55 if (xbt_heap_maxkey(heap) != tab[i]) {
56 fprintf(stderr, "Problem !\n");
63 printf("Validity test complete!\n");
66 void test_heap_mean_operation(int size)
68 xbt_heap_t heap = xbt_heap_new(size, NULL);
73 date = xbt_os_time() * 1000000;
74 for (i = 0; i < size; i++)
75 xbt_heap_push(heap, NULL, (10.0 * rand() / (RAND_MAX + 1.0)));
77 date = xbt_os_time() * 1000000 - date;
78 printf("Creation time %d size heap : %g\n", size, date);
80 date = xbt_os_time() * 1000000;
81 for (j = 0; j < MAX_TEST; j++) {
84 test_reset_heap(&heap, size);
86 val = xbt_heap_maxkey(heap);
88 xbt_heap_push(heap, NULL, 3.0 * val);
90 date = xbt_os_time() * 1000000 - date;
91 printf("Mean access time for a %d size heap : %g\n", size,
92 date * 1.0 / (MAX_TEST + 0.0));
97 void test_reset_heap(xbt_heap_t * heap, int size)
100 xbt_heap_free(*heap);
101 *heap = xbt_heap_new(size, NULL);
103 for (i = 0; i < size; i++) {
104 xbt_heap_push(*heap, NULL, (10.0 * rand() / (RAND_MAX + 1.0)));
109 int main(int argc, char **argv)
112 for (size = 100; size < 10000; size *= 10) {
113 test_heap_validity(size);
114 test_heap_mean_operation(size);