glibc/sysdeps/mach/hurd/fdatasync.c
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

44 lines
1.3 KiB
C

/* Copyright (C) 1991-2021 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/>. */
#include <errno.h>
#include <unistd.h>
#include <hurd.h>
#include <hurd/fd.h>
#include <sysdep-cancel.h>
/* Make all changes done to FD's file data actually appear on disk. */
int
fdatasync (int fd)
{
error_t err;
int cancel_oldtype;
cancel_oldtype = LIBC_CANCEL_ASYNC();
err = HURD_DPORT_USE_CANCEL (fd, __file_sync (port, 1, 1));
LIBC_CANCEL_RESET (cancel_oldtype);
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;
}