diff options
Diffstat (limited to 'REORG.TODO/sysdeps/pthread/aio_fsync.c')
| -rw-r--r-- | REORG.TODO/sysdeps/pthread/aio_fsync.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/pthread/aio_fsync.c b/REORG.TODO/sysdeps/pthread/aio_fsync.c new file mode 100644 index 0000000000..c2e8ec03f9 --- /dev/null +++ b/REORG.TODO/sysdeps/pthread/aio_fsync.c @@ -0,0 +1,57 @@ +/* Synchronize I/O in given file descriptor. + Copyright (C) 1997-2017 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_fsync and aio_fsync64 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_fsync64 has no prototype. */ +#define aio_fsync64 XXX +#include <aio.h> +/* And undo the hack. */ +#undef aio_fsync64 +#include <errno.h> +#include <fcntl.h> + +#include <aio_misc.h> + + +int +aio_fsync (int op, struct aiocb *aiocbp) +{ + if (op != O_DSYNC && __builtin_expect (op != O_SYNC, 0)) + { + __set_errno (EINVAL); + return -1; + } + + /* Verify that this is an open file descriptor. */ + if (__glibc_unlikely (fcntl (aiocbp->aio_fildes, F_GETFL) == -1)) + { + __set_errno (EBADF); + return -1; + } + + return (__aio_enqueue_request ((aiocb_union *) aiocbp, + op == O_SYNC ? LIO_SYNC : LIO_DSYNC) == NULL + ? -1 : 0); +} + +weak_alias (aio_fsync, aio_fsync64) |