1 /* A few tests for the xbt_heap module */
3 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. 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. */
15 #include <xbt/xbt_os_time.h>
18 #include "xbt/sysdep.h" /* calloc, printf */
20 #define MAX_TEST 1000000
23 int _XBT_CALL compare_double(const void *a, const void *b);
25 int compare_double(const void *a, const void *b);
28 void test_heap_validity(int size);
29 void test_heap_mean_operation(int size);
30 void test_reset_heap(xbt_heap_t * heap, int size);
33 int compare_double(const void *a, const void *b)
47 void test_heap_validity(int size)
49 xbt_heap_t heap = xbt_heap_new(size, NULL);
50 double *tab = xbt_new0(double, size);
54 for (i = 0; i < size; i++) {
55 tab[i] = (double) (10.0 * rand() / (RAND_MAX + 1.0));
56 xbt_heap_push(heap, NULL, (double) tab[i]);
59 qsort(tab, size, sizeof(double), compare_double);
61 for (i = 0; i < size; i++) {
62 /* printf("%lg" " ", xbt_heap_maxkey(heap)); */
63 if (xbt_heap_maxkey(heap) != tab[i]) {
64 fprintf(stderr, "Problem !\n");
71 printf("Validity test complete!\n");
74 void test_heap_mean_operation(int size)
76 xbt_heap_t heap = xbt_heap_new(size, NULL);
81 date = xbt_os_time() * 1000000;
82 for (i = 0; i < size; i++)
83 xbt_heap_push(heap, NULL, (10.0 * rand() / (RAND_MAX + 1.0)));
85 date = xbt_os_time() * 1000000 - date;
86 printf("Creation time %d size heap : %g\n", size, date);
88 date = xbt_os_time() * 1000000;
89 for (j = 0; j < MAX_TEST; j++) {
92 test_reset_heap(&heap, size);
94 val = xbt_heap_maxkey(heap);
96 xbt_heap_push(heap, NULL, 3.0 * val);
98 date = xbt_os_time() * 1000000 - date;
99 printf("Mean access time for a %d size heap : %g\n", size,
100 date * 1.0 / (MAX_TEST + 0.0));
105 void test_reset_heap(xbt_heap_t * heap, int size)
108 xbt_heap_free(*heap);
109 *heap = xbt_heap_new(size, NULL);
111 for (i = 0; i < size; i++) {
112 xbt_heap_push(*heap, NULL, (10.0 * rand() / (RAND_MAX + 1.0)));
121 int main(int argc, char **argv)
124 for (size = 100; size < 10000; size *= 10) {
125 test_heap_validity(size);
126 test_heap_mean_operation(size);