109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
/* Test for notification mechanism in lio_listio.
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Copyright (C) 2000-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <aio.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <errno.h>
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#include <pthread.h>
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static pthread_barrier_t b;
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static void
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thrfct (sigval_t arg)
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{
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int e = pthread_barrier_wait (&b);
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if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
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{
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puts ("child: barrier_wait failed");
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exit (1);
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}
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}
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static int
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do_test (int argc, char *argv[])
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{
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char name[] = "/tmp/aio3.XXXXXX";
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int fd;
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struct aiocb *arr[1];
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struct aiocb cb;
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static const char buf[] = "Hello World\n";
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fd = mkstemp (name);
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if (fd == -1)
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{
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printf ("cannot open temp name: %m\n");
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return 1;
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}
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unlink (name);
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if (pthread_barrier_init (&b, NULL, 2) != 0)
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{
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puts ("barrier_init failed");
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return 1;
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}
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arr[0] = &cb;
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cb.aio_fildes = fd;
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cb.aio_lio_opcode = LIO_WRITE;
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cb.aio_reqprio = 0;
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cb.aio_buf = (void *) buf;
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cb.aio_nbytes = sizeof (buf) - 1;
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cb.aio_offset = 0;
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cb.aio_sigevent.sigev_notify = SIGEV_THREAD;
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cb.aio_sigevent.sigev_notify_function = thrfct;
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cb.aio_sigevent.sigev_notify_attributes = NULL;
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cb.aio_sigevent.sigev_value.sival_ptr = NULL;
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if (lio_listio (LIO_NOWAIT, arr, 1, NULL) < 0)
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{
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if (errno == ENOSYS)
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{
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puts ("no aio support in this configuration");
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return 0;
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}
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printf ("lio_listio failed: %m\n");
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return 1;
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}
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if (aio_suspend ((const struct aiocb *const *) arr, 1, NULL) < 0)
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{
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printf ("aio_suspend failed: %m\n");
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return 1;
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}
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int e = pthread_barrier_wait (&b);
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if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
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{
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puts ("parent: barrier_wait failed");
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return 1;
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}
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puts ("all OK");
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return 0;
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}
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#include "../test-skeleton.c"
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