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