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
|
#include "../tests.h"
#include <camellia/compat.h>
#include <camellia/flags.h>
#include <errno.h>
#include <unistd.h>
static void test_fdlimit_pipe(void) {
hid_t ends[2];
hid_t h[2] = {-1, -1};
for (;;) {
hid_t cur = _sys_open("/", 1, OPEN_READ);
if (cur == -EMFILE) break;
test(cur >= 0);
h[0] = h[1];
h[1] = cur;
}
test(h[0] >= 0); /* we need at least two handles */
test(_sys_pipe(ends, 0) == -EMFILE);
test(_sys_open("/", 1, OPEN_READ) == -EMFILE);
close(h[1]);
test(_sys_pipe(ends, 0) == -EMFILE);
test(_sys_open("/", 1, OPEN_READ) == h[1]);
test(_sys_open("/", 1, OPEN_READ) == -EMFILE);
close(h[0]);
close(h[1]);
test(_sys_pipe(ends, 0) == 0);
}
static void test_fdlimit_fork(void) {
for (;;) {
hid_t cur = _sys_open("/", 1, OPEN_READ);
if (cur == -EMFILE) break;
test(cur >= 0);
}
if (!_sys_fork(0, NULL)) _sys_exit(123);
test(_sys_fork(FORK_NEWFS, NULL) == -EMFILE);
test(_sys_await() == 123);
test(_sys_await() == ~0);
}
void r_k_fdlimit(void) {
/* all these tests implicitly test if the vfs returns -EMFILE */
run_test(test_fdlimit_pipe);
run_test(test_fdlimit_fork);
}
|
