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/* Return error status of asynchronous I/O request.
Copyright (C) 1997-2021 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, see
<https://www.gnu.org/licenses/>. */
/* We use an UGLY hack to prevent gcc from finding us cheating. The
implementation of aio_error and aio_error64 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_error64 has no prototype. */
#define aio_error64 XXX
#include <aio.h>
/* And undo the hack. */
#undef aio_error64
#include <aio_misc.h>
#include <pthreadP.h>
#include <shlib-compat.h>
int
__aio_error (const struct aiocb *aiocbp)
{
int ret;
/* Acquire the mutex to make sure all operations for this request are
complete. */
__pthread_mutex_lock (&__aio_requests_mutex);
ret = aiocbp->__error_code;
__pthread_mutex_unlock (&__aio_requests_mutex);
return ret;
}
#if PTHREAD_IN_LIBC
versioned_symbol (libc, __aio_error, aio_error, GLIBC_2_34);
versioned_symbol (libc, __aio_error, aio_error64, GLIBC_2_34);
# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_34)
compat_symbol (librt, __aio_error, aio_error, GLIBC_2_1);
compat_symbol (librt, __aio_error, aio_error64, GLIBC_2_1);
# endif
#else /* !PTHREAD_IN_LIBC */
strong_alias (__aio_error, aio_error)
weak_alias (__aio_error, aio_error64)
#endif /* !PTHREAD_IN_LIBC */
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