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04277e02d7
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49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
/* Return error status of asynchronous I/O request.
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Copyright (C) 1997-2019 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 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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/* We use an UGLY hack to prevent gcc from finding us cheating. The
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implementation of aio_error and aio_error64 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_error64 has no prototype. */
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#define aio_error64 XXX
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#include <aio.h>
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/* And undo the hack. */
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#undef aio_error64
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#include <aio_misc.h>
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int
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aio_error (const struct aiocb *aiocbp)
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{
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int ret;
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/* Acquire the mutex to make sure all operations for this request are
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complete. */
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pthread_mutex_lock(&__aio_requests_mutex);
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ret = aiocbp->__error_code;
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pthread_mutex_unlock(&__aio_requests_mutex);
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return ret;
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}
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weak_alias (aio_error, aio_error64)
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