blob: ec123538271363469903cda7376dbdb2531b18dd (
plain)
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
|
/*
* Description: test io_uring poll cancel handling
*
*/
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/poll.h>
#include <sys/wait.h>
#include "../src/liburing.h"
int main(int argc, char *argv[])
{
struct io_uring ring;
int pipe1[2];
struct io_uring_cqe *cqe;
struct io_uring_sqe *sqe;
unsigned long addr;
int ret;
if (pipe(pipe1) != 0) {
printf("pipe failed\n");
return 1;
}
ret = io_uring_queue_init(2, &ring, 0);
if (ret) {
printf("child: ring setup failed\n");
return 1;
}
sqe = io_uring_get_sqe(&ring);
if (!sqe) {
printf("child: get sqe failed\n");
return 1;
}
sqe->opcode = IORING_OP_POLL;
sqe->flags = 0;
sqe->ioprio = 0;
sqe->fd = pipe1[0];
sqe->addr = POLLIN;
sqe->off = 0;
sqe->len = 0;
sqe->buf_index = 0;
sqe->user_data = addr = (unsigned long) &sqe;
ret = io_uring_submit(&ring);
if (ret <= 0) {
printf("child: sqe submit failed\n");
return 1;
}
sqe = io_uring_get_sqe(&ring);
if (!sqe) {
printf("child: get sqe failed\n");
return 1;
}
sqe->opcode = IORING_OP_POLL_CANCEL;
sqe->flags = 0;
sqe->ioprio = 0;
sqe->fd = 0;
sqe->addr = addr;
sqe->off = 0;
sqe->len = 0;
sqe->buf_index = 0;
sqe->user_data = (unsigned long) &sqe;
ret = io_uring_submit(&ring);
if (ret <= 0) {
printf("child: sqe submit failed\n");
return 1;
}
ret = io_uring_wait_completion(&ring, &cqe);
if (ret < 0) {
printf("child: get cqe failed\n");
return 1;
}
if (cqe->user_data != addr) {
printf("first complete not poll\n");
return 1;
}
ret = io_uring_wait_completion(&ring, &cqe);
if (ret < 0) {
printf("parent: get failed\n");
return 1;
}
if (cqe->user_data != (unsigned long) &sqe) {
printf("second not cancel\n");
return 1;
}
return 0;
}
|
