diff options
Diffstat (limited to 'sysdeps/pthread/aio_error.c')
| -rw-r--r-- | sysdeps/pthread/aio_error.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/sysdeps/pthread/aio_error.c b/sysdeps/pthread/aio_error.c new file mode 100644 index 0000000000..ebe1378b2a --- /dev/null +++ b/sysdeps/pthread/aio_error.c @@ -0,0 +1,49 @@ +/* Return error status of asynchronous I/O request. + Copyright (C) 1997-2015 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_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> + + +int +aio_error (aiocbp) + 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; +} + +weak_alias (aio_error, aio_error64) |