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
|
#include "../config-host.h"
/* SPDX-License-Identifier: MIT */
/*
* Description: test IORING_SETUP_SUBMIT_ALL
*
*/
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include "liburing.h"
#include "helpers.h"
static int test(struct io_uring *ring, int expect_drops)
{
struct io_uring_sqe *sqe;
char buf[32];
int ret, i;
for (i = 0; i < 4; i++) {
sqe = io_uring_get_sqe(ring);
if (!sqe) {
fprintf(stderr, "get sqe failed\n");
goto err;
}
io_uring_prep_nop(sqe);
}
/* prep two invalid reads, these will fail */
for (i = 0; i < 2; i++) {
sqe = io_uring_get_sqe(ring);
if (!sqe) {
fprintf(stderr, "get sqe failed\n");
goto err;
}
io_uring_prep_read(sqe, 128, buf, sizeof(buf), 0);
sqe->ioprio = (short) -1;
}
ret = io_uring_submit(ring);
if (expect_drops) {
if (ret != 5) {
fprintf(stderr, "drops submit failed: %d\n", ret);
goto err;
}
} else {
if (ret != 6) {
fprintf(stderr, "no drops submit failed: %d\n", ret);
goto err;
}
}
return 0;
err:
return 1;
}
int main(int argc, char *argv[])
{
struct io_uring ring;
int ret;
if (argc > 1)
return T_EXIT_SKIP;
ret = io_uring_queue_init(8, &ring, IORING_SETUP_SUBMIT_ALL);
if (ret)
return 0;
ret = test(&ring, 0);
if (ret) {
fprintf(stderr, "test no drops failed\n");
return ret;
}
io_uring_queue_exit(&ring);
ret = io_uring_queue_init(8, &ring, 0);
if (ret) {
fprintf(stderr, "ring setup failed\n");
return T_EXIT_FAIL;
}
ret = test(&ring, 1);
if (ret) {
fprintf(stderr, "test drops failed\n");
return ret;
}
return T_EXIT_PASS;
}
|
