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45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/* Copyright (C) 1991-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <unistd.h>
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#include <hurd.h>
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#include <hurd/fd.h>
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#include <sysdep-cancel.h>
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/* Make all changes done to FD's file data actually appear on disk. */
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int
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fdatasync (int fd)
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{
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error_t err;
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int cancel_oldtype;
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cancel_oldtype = LIBC_CANCEL_ASYNC();
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err = HURD_DPORT_USE_CANCEL (fd, __file_sync (port, 1, 1));
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LIBC_CANCEL_RESET (cancel_oldtype);
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if (err)
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{
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if (err == EOPNOTSUPP)
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/* If the file descriptor does not support sync, return EINVAL
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as POSIX specifies. */
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err = EINVAL;
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return __hurd_dfail (fd, err);
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}
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return 0;
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}
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libc_hidden_def (fdatasync)
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