1 | /* Test for timeout handling. |
2 | Copyright (C) 2000-2022 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <aio.h> |
20 | #include <errno.h> |
21 | #include <stdio.h> |
22 | #include <unistd.h> |
23 | #include <sys/time.h> |
24 | |
25 | |
26 | #define TEST_FUNCTION do_test () |
27 | static int |
28 | do_test (void) |
29 | { |
30 | struct aiocb *arr[1]; |
31 | struct aiocb cb; |
32 | char buf[100]; |
33 | struct timeval before; |
34 | struct timeval after; |
35 | struct timespec timeout; |
36 | int fd[2]; |
37 | int result = 0; |
38 | |
39 | if (pipe (pipedes: fd) != 0) |
40 | { |
41 | printf (format: "cannot create pipe: %m\n" ); |
42 | return 1; |
43 | } |
44 | |
45 | arr[0] = &cb; |
46 | |
47 | cb.aio_fildes = fd[0]; |
48 | cb.aio_lio_opcode = LIO_WRITE; |
49 | cb.aio_reqprio = 0; |
50 | cb.aio_buf = (void *) buf; |
51 | cb.aio_nbytes = sizeof (buf) - 1; |
52 | cb.aio_offset = 0; |
53 | cb.aio_sigevent.sigev_notify = SIGEV_NONE; |
54 | |
55 | /* Try to read from stdin where nothing will be available. */ |
56 | if (aio_read (aiocbp: arr[0]) < 0) |
57 | { |
58 | if (errno == ENOSYS) |
59 | { |
60 | puts (s: "no aio support in this configuration" ); |
61 | return 0; |
62 | } |
63 | printf (format: "aio_read failed: %m\n" ); |
64 | return 1; |
65 | } |
66 | |
67 | /* Get the current time. */ |
68 | gettimeofday (tv: &before, NULL); |
69 | |
70 | /* Wait for input which is unsuccessful and therefore the function will |
71 | time out. */ |
72 | timeout.tv_sec = 3; |
73 | timeout.tv_nsec = 0; |
74 | if (aio_suspend (list: (const struct aiocb *const*) arr, nent: 1, timeout: &timeout) != -1) |
75 | { |
76 | puts (s: "aio_suspend() didn't return -1" ); |
77 | result = 1; |
78 | } |
79 | else if (errno != EAGAIN) |
80 | { |
81 | puts (s: "error not set to EAGAIN" ); |
82 | result = 1; |
83 | } |
84 | else |
85 | { |
86 | gettimeofday (tv: &after, NULL); |
87 | if (after.tv_sec < before.tv_sec + 1) |
88 | { |
89 | puts (s: "timeout came too early" ); |
90 | result = 1; |
91 | } |
92 | } |
93 | |
94 | return result; |
95 | } |
96 | |
97 | #include "../test-skeleton.c" |
98 | |