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
|
/**
* Copyright (C) Mellanox Technologies Ltd. 2019. ALL RIGHTS RESERVED.
*
* See file LICENSE for terms.
*/
#include <stdlib.h>
#include <dlfcn.h>
#include <stdio.h>
#define _QUOTE(x) #x
#define QUOTE(x) _QUOTE(x)
typedef struct ucs_list_link {
struct ucs_list_link *prev;
struct ucs_list_link *next;
} ucs_list_link_t;
static void* do_dlopen_or_exit(const char *filename)
{
void *handle;
(void)dlerror();
printf("opening '%s'\n", filename);
handle = dlopen(filename, RTLD_LAZY);
if (handle == NULL) {
fprintf(stderr, "failed to open %s: %s\n", filename,
dlerror());
exit(1);
}
return handle;
}
int main(int argc, char **argv)
{
typedef void (*print_all_opts_func_t)(FILE*, const char *, int,
ucs_list_link_t *);
const char *ucs_filename = QUOTE(UCS_LIB_PATH);
const char *uct_filename = QUOTE(UCT_LIB_PATH);
void *ucs_handle, *uct_handle;
ucs_list_link_t *config_list;
int i;
print_all_opts_func_t print_all_opts;
/* unload and reload uct while ucs is loaded
* would fail if uct global vars are kept on global lists in ucs */
ucs_handle = do_dlopen_or_exit(ucs_filename);
for (i = 0; i < 2; ++i) {
uct_handle = do_dlopen_or_exit(uct_filename);
dlclose(uct_handle);
}
/* print all config table, to force going over the global list in ucs */
print_all_opts =
(print_all_opts_func_t)dlsym(ucs_handle, "ucs_config_parser_print_all_opts");
config_list = (ucs_list_link_t*)dlsym(ucs_handle, "ucs_config_global_list");
print_all_opts(stdout, "TEST_", 0, config_list);
dlclose(ucs_handle);
printf("done\n");
return 0;
}
|
