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glibc/rt/aio_return.c
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/* Return exit value of asynchronous I/O request. | |
Copyright (C) 1997-2016 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 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 | |
<http://www.gnu.org/licenses/>. */ | |
/* We use an UGLY hack to prevent gcc from finding us cheating. The | |
implementation of aio_return and aio_return64 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_return64 has no prototype. */ | |
#define aio_return64 XXX | |
#include <aio.h> | |
/* And undo the hack. */ | |
#undef aio_return64 | |
ssize_t | |
aio_return (struct aiocb *aiocbp) | |
{ | |
return aiocbp->__return_value; | |
} | |
weak_alias (aio_return, aio_return64) |