1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#define USE_THREAD
#include <haproxy/list.h>
/* Stress test the mt_lists.
* Compile from the haproxy directory with :
* cc -I../../include test-list.c -pthread -O2 -o test-list
* The only argument it takes is the number of threads to be used.
* ./test-list 4
*/
struct mt_list pouet_list = MT_LIST_HEAD_INIT(pouet_list);
#define MAX_ACTION 5000000
__thread unsigned int tid;
struct pouet_lol {
struct mt_list list_elt;
};
void *thread(void *pouet)
{
struct pouet_lol *lol;
struct mt_list *elt1, elt2;
tid = (uintptr_t)pouet;
int i = 0;
for (int i = 0; i < MAX_ACTION; i++) {
struct pouet_lol *lol;
struct mt_list *elt1, elt2;
switch (random() % 4) {
case 0:
lol = malloc(sizeof(*lol));
MT_LIST_INIT(&lol->list_elt);
MT_LIST_TRY_INSERT(&pouet_list, &lol->list_elt);
break;
case 1:
lol = malloc(sizeof(*lol));
MT_LIST_INIT(&lol->list_elt);
MT_LIST_TRY_APPEND(&pouet_list, &lol->list_elt);
break;
case 2:
lol = MT_LIST_POP(&pouet_list, struct pouet_lol *, list_elt);
if (lol)
free(lol);
break;
case 3:
mt_list_for_each_entry_safe(lol, &pouet_list, list_elt, elt1, elt2)
{
if (random() % 2) {
MT_LIST_DELETE_SAFE(elt1);
free(lol);
}
if (random() % 2) {
break;
}
}
break;
default:
break;
}
}
}
int main(int argc, char *argv[])
{
int nb;
pthread_t *pth;
srandom(time(NULL));
if (argc != 2) {
printf("Usage: %s <nb_threads>\n", argv[0]);
exit(1);
}
nb = atoi(argv[1]);
#if 0
if (nb < 2) {
printf("Need at least 2 threads.\n");
exit(1);
}
#endif
pth = malloc(nb * sizeof(*pth));
if (pth == NULL) {
printf("Shot failed to connect.\n");
exit(1);
}
for (int i = 0; i < nb; i++) {
pthread_create(&pth[i], NULL, thread, (void *)(uintptr_t)i);
}
for (int i = 0; i < nb; i++)
pthread_join(pth[i], NULL);
return 0;
}
|
