56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/* Suspend until termination of a requests.
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Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* We use an UGLY hack to prevent gcc from finding us cheating. The
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implementation of aio_suspend and aio_suspend64 are identical and so
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we want to avoid code duplication by using aliases. But gcc sees
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the different parameter lists and prints a warning. We define here
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a function so that aio_suspend64 has no prototype. */
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#define aio_suspend64 XXX
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#include <aio.h>
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/* And undo the hack. */
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#undef aio_suspend64
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#include <errno.h>
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#include "aio_misc.h"
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int
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aio_suspend (list, nent, timeout)
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const struct aiocb *const list[];
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int nent;
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const struct timespec *timeout;
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{
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int cnt;
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/* First look whether there is already a terminated request. */
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for (cnt = 0; cnt < nent; ++cnt)
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if (list[cnt] != NULL && list[cnt]->__error_code != EINPROGRESS)
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return 0;
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/* XXX We have to write code which waits. */
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return -1;
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}
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weak_alias (aio_suspend, aio_suspend64)
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