stest.c revision fbc2792b20276f7fa14c44f7b235ca448b383b50 
1#include <stdio.h>
2#include <stdlib.h>
3#include <assert.h>
4
5#include "../smalloc.h"
6#include "../flist.h"
7
8FILE *f_err;
9
10#define MAGIC1	0xa9b1c8d2
11#define MAGIC2	0xf0a1e9b3
12
13#define LOOPS	32
14
15struct elem {
16	unsigned int magic1;
17	struct flist_head list;
18	unsigned int magic2;
19};
20
21FLIST_HEAD(list);
22
23static int do_rand_allocs(void)
24{
25	unsigned int size, nr, rounds = 0;
26	unsigned long total;
27	struct elem *e;
28
29	while (rounds++ < LOOPS) {
30#ifdef STEST_SEED
31		srand(MAGIC1);
32#endif
33		nr = total = 0;
34		while (total < 128*1024*1024UL) {
35			size = 8 * sizeof(struct elem) + (int) (999.0 * (rand() / (RAND_MAX + 1.0)));
36			e = smalloc(size);
37			if (!e) {
38				printf("fail at %lu, size %u\n", total, size);
39				break;
40			}
41			e->magic1 = MAGIC1;
42			e->magic2 = MAGIC2;
43			total += size;
44			flist_add_tail(&e->list, &list);
45			nr++;
46		}
47
48		printf("Got items: %u\n", nr);
49
50		while (!flist_empty(&list)) {
51			e = flist_entry(list.next, struct elem, list);
52			assert(e->magic1 == MAGIC1);
53			assert(e->magic2 == MAGIC2);
54			flist_del(&e->list);
55			sfree(e);
56		}
57	}
58
59	return 0;
60}
61
62static int do_specific_alloc(unsigned long size)
63{
64	void *ptr;
65
66	ptr = smalloc(size);
67	sfree(ptr);
68	return 0;
69}
70
71int main(int argc, char *argv[])
72{
73	f_err = stderr;
74
75	sinit();
76
77	do_rand_allocs();
78
79	/* smalloc bug, commit 271067a6 */
80	do_specific_alloc(671386584);
81
82	scleanup();
83	return 0;
84}
85