Makfile: use LINK for the link phase
[fio.git] / t / stest.c
1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <assert.h>
4
5 #include "../smalloc.h"
6 #include "../flist.h"
7
8 FILE *f_err;
9 struct timeval *fio_tv = NULL;
10 unsigned int fio_debug = 0;
11
12 #define MAGIC1  0xa9b1c8d2
13 #define MAGIC2  0xf0a1e9b3
14
15 #define LOOPS   32
16
17 struct elem {
18         unsigned int magic1;
19         struct flist_head list;
20         unsigned int magic2;
21 };
22
23 FLIST_HEAD(list);
24
25 static int do_rand_allocs(void)
26 {
27         unsigned int size, nr, rounds = 0;
28         unsigned long total;
29         struct elem *e;
30
31         while (rounds++ < LOOPS) {
32 #ifdef STEST_SEED
33                 srand(MAGIC1);
34 #endif
35                 nr = total = 0;
36                 while (total < 128*1024*1024UL) {
37                         size = 8 * sizeof(struct elem) + (int) (999.0 * (rand() / (RAND_MAX + 1.0)));
38                         e = smalloc(size);
39                         if (!e) {
40                                 printf("fail at %lu, size %u\n", total, size);
41                                 break;
42                         }
43                         e->magic1 = MAGIC1;
44                         e->magic2 = MAGIC2;
45                         total += size;
46                         flist_add_tail(&e->list, &list);
47                         nr++;
48                 }
49
50                 printf("Got items: %u\n", nr);
51
52                 while (!flist_empty(&list)) {
53                         e = flist_entry(list.next, struct elem, list);
54                         assert(e->magic1 == MAGIC1);
55                         assert(e->magic2 == MAGIC2);
56                         flist_del(&e->list);
57                         sfree(e);
58                 }
59         }
60
61         return 0;
62 }
63
64 static int do_specific_alloc(unsigned long size)
65 {
66         void *ptr;
67
68         ptr = smalloc(size);
69         sfree(ptr);
70         return 0;
71 }
72
73 int main(int argc, char *argv[])
74 {
75         f_err = stderr;
76
77         sinit();
78
79         do_rand_allocs();
80
81         /* smalloc bug, commit 271067a6 */
82         do_specific_alloc(671386584);
83
84         scleanup();
85         return 0;
86 }
87
88 void __dprint(int type, const char *str, ...)
89 {
90 }