diff options
Diffstat (limited to 'rt/aio_suspend.c')
-rw-r--r-- | rt/aio_suspend.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/rt/aio_suspend.c b/rt/aio_suspend.c new file mode 100644 index 0000000..75bf9ba --- /dev/null +++ b/rt/aio_suspend.c @@ -0,0 +1,55 @@ +/* Suspend until termination of a requests. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + + +/* We use an UGLY hack to prevent gcc from finding us cheating. The + implementation of aio_suspend and aio_suspend64 are identical and so + we want to avoid code duplication by using aliases. But gcc sees + the different parameter lists and prints a warning. We define here + a function so that aio_suspend64 has no prototype. */ +#define aio_suspend64 XXX +#include <aio.h> +/* And undo the hack. */ +#undef aio_suspend64 + +#include <errno.h> + +#include "aio_misc.h" + + +int +aio_suspend (list, nent, timeout) + const struct aiocb *const list[]; + int nent; + const struct timespec *timeout; +{ + int cnt; + + /* First look whether there is already a terminated request. */ + for (cnt = 0; cnt < nent; ++cnt) + if (list[cnt] != NULL && list[cnt]->__error_code != EINPROGRESS) + return 0; + + /* XXX We have to write code which waits. */ + + return -1; +} + +weak_alias (aio_suspend, aio_suspend64) |