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Diffstat (limited to 'rt/tst-aio7.c')
| -rw-r--r-- | rt/tst-aio7.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/rt/tst-aio7.c b/rt/tst-aio7.c new file mode 100644 index 0000000..1b3bdea --- /dev/null +++ b/rt/tst-aio7.c @@ -0,0 +1,175 @@ +/* Test for AIO POSIX compliance. + Copyright (C) 2001 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <aio.h> +#include <error.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + + +/* We might wait for 3 seconds, so increase timeout to 10 seconds. */ +#define TIMEOUT 10 + + +#define TEST_FUNCTION do_test () +static int +do_test (void) +{ + int result = 0; + + /* Test for aio_cancel() detecting invalid file descriptor. */ + { + struct aiocb cb; + int fd = -1; + + cb.aio_fildes = fd; + cb.aio_offset = 0; + cb.aio_buf = NULL; + cb.aio_nbytes = 0; + cb.aio_reqprio = 0; + cb.aio_sigevent.sigev_notify = SIGEV_NONE; + + errno = 0; + + /* Case one: invalid fds that match. */ + if (aio_cancel (fd, &cb) != -1 || errno != EBADF) + { + puts ("aio_cancel( -1, {-1..} ) did not return -1 or errno != EBADF"); + ++result; + } + + cb.aio_fildes = -2; + errno = 0; + + /* Case two: invalid fds that do not match; just print warning. */ + if (aio_cancel (fd, &cb) != -1 || errno != EBADF) + puts ("aio_cancel( -1, {-2..} ) did not return -1 or errno != EBADF"); + } + + /* Test for aio_fsync() detecting bad fd, and fd not open for writing. */ + { + struct aiocb cb; + int fd = -1; + + cb.aio_fildes = fd; + cb.aio_offset = 0; + cb.aio_buf = NULL; + cb.aio_nbytes = 0; + cb.aio_reqprio = 0; + cb.aio_sigevent.sigev_notify = SIGEV_NONE; + + errno = 0; + + /* Case one: invalid fd. */ + if (aio_fsync (O_SYNC, &cb) != -1 || errno != EBADF) + { + puts ("aio_fsync( op, {-1..} ) did not return -1 or errno != EBADF"); + ++result; + } + + if ((fd = open ("/dev/null", O_RDONLY)) < 0) + error (1, errno, "opening /dev/null"); + + cb.aio_fildes = fd; + errno = 0; + + /* Case two: valid fd but open for read only. */ + if (aio_fsync (O_SYNC, &cb) != -1 || errno != EBADF) + { + puts ("aio_fsync( op, {RO..} ) did not return -1 or errno != EBADF"); + ++result; + } + + close (fd); + } + + /* Test for aio_suspend() suspending even if completed elements in list. */ + { + const int BYTES = 8, ELEMS = 2; + int i, r, fd; + char buff[BYTES]; + char name[] = "/tmp/aio7.XXXXXX"; + struct timespec timeout; + struct aiocb cb0, cb1; + struct aiocb *list[ELEMS]; + + fd = mkstemp (name); + if (fd < 0) + error (1, errno, "creating temp file"); + + if (unlink (name)) + error (1, errno, "unlinking temp file"); + + if (write (fd, "01234567", BYTES) != BYTES) + error (1, errno, "writing to temp file"); + + cb0.aio_fildes = fd; + cb0.aio_offset = 0; + cb0.aio_buf = buff; + cb0.aio_nbytes = BYTES; + cb0.aio_reqprio = 0; + cb0.aio_sigevent.sigev_notify = SIGEV_NONE; + + r = aio_read (&cb0); + if (r != 0) + error (1, errno, "reading from file"); + + while (aio_error (&(cb0)) == EINPROGRESS) + usleep (10); + + for (i = 0; i < BYTES; i++) + printf ("%c ", buff[i]); + printf ("\n"); + + /* At this point, the first read is completed, so start another one on + * stdin, which will not complete unless the user inputs something. + */ + cb1.aio_fildes = 0; + cb1.aio_offset = 0; + cb1.aio_buf = buff; + cb1.aio_nbytes = BYTES; + cb1.aio_reqprio = 0; + cb1.aio_sigevent.sigev_notify = SIGEV_NONE; + + r = aio_read (&cb1); + if (r != 0) + error (1, errno, "reading from file"); + + /* Now call aio_suspend() with the two reads. It should return + * immediately according to the POSIX spec. + */ + list[0] = &cb0; + list[1] = &cb1; + timeout.tv_sec = 3; + timeout.tv_nsec = 0; + r = aio_suspend ((const struct aiocb * const *) list, ELEMS, &timeout); + + if (r == -1 && errno == EAGAIN) + { + puts ("aio_suspend([done,blocked],2,3) suspended thread"); + ++result; + } + } + + return result; +} + +#include "../test-skeleton.c" |