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[glibc.git] / rt / tst-aio6.c
blobac724b01f30e4aeb9c7097f355ef61e3ff3df676
1 /* Test for timeout handling.
2 Copyright (C) 2000, 2002 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <aio.h>
21 #include <errno.h>
22 #include <stdio.h>
23 #include <unistd.h>
24 #include <sys/time.h>
27 /* We expect to wait for 3 seconds so we have to increase the timeout. */
28 #define TIMEOUT 10 /* sec */
31 #define TEST_FUNCTION do_test ()
32 static int
33 do_test (void)
35 struct aiocb *arr[1];
36 struct aiocb cb;
37 char buf[100];
38 struct timeval before;
39 struct timeval after;
40 struct timespec timeout;
41 int fd[2];
42 int result = 0;
44 if (pipe (fd) != 0)
46 printf ("cannot create pipe: %m\n");
47 return 1;
50 arr[0] = &cb;
52 cb.aio_fildes = fd[0];
53 cb.aio_lio_opcode = LIO_WRITE;
54 cb.aio_reqprio = 0;
55 cb.aio_buf = (void *) buf;
56 cb.aio_nbytes = sizeof (buf) - 1;
57 cb.aio_offset = 0;
58 cb.aio_sigevent.sigev_notify = SIGEV_NONE;
60 /* Try to read from stdin where nothing will be available. */
61 if (aio_read (arr[0]) < 0)
63 if (errno == ENOSYS)
65 puts ("no aio support in this configuration");
66 return 0;
68 printf ("aio_read failed: %m\n");
69 return 1;
72 /* Get the current time. */
73 gettimeofday (&before, NULL);
75 /* Wait for input which is unsuccessful and therefore the function will
76 time out. */
77 timeout.tv_sec = 3;
78 timeout.tv_nsec = 0;
79 if (aio_suspend ((const struct aiocb *const*) arr, 1, &timeout) != -1)
81 puts ("aio_suspend() didn't return -1");
82 result = 1;
84 else if (errno != EAGAIN)
86 puts ("error not set to EAGAIN");
87 result = 1;
89 else
91 gettimeofday (&after, NULL);
92 if (after.tv_sec < before.tv_sec + 1)
94 puts ("timeout came too early");
95 result = 1;
99 return result;
102 #include "../test-skeleton.c"