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/* Copyright (C) 1991-2019 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
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/fd.h>
/* Make all changes done to FD actually appear on disk. */
int
fsync (int fd)
{
error_t err = HURD_DPORT_USE (fd, __file_sync (port, 1, 0));
if (err)
{
if (err == EOPNOTSUPP)
/* If the file descriptor does not support sync, return EINVAL
as POSIX specifies. */
err = EINVAL;
return __hurd_dfail (fd, err);
}
return 0;
}
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