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55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/* Copyright (C) 2007, 2009, 2011 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <errno.h>
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#include <fcntl.h>
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#include <sysdep-cancel.h>
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extern int __call_fallocate (int fd, int mode, __off64_t offset, __off64_t len)
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attribute_hidden;
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/* Reserve storage for the data of the file associated with FD. */
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int
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fallocate (int fd, int mode, __off_t offset, __off_t len)
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{
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#ifdef __NR_fallocate
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int err;
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if (SINGLE_THREAD_P)
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err = __call_fallocate (fd, mode, offset, len);
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else
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{
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int oldtype = LIBC_CANCEL_ASYNC ();
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err = __call_fallocate (fd, mode, offset, len);
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LIBC_CANCEL_RESET (oldtype);
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}
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if (__builtin_expect (err, 0))
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{
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__set_errno (err);
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err = -1;
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}
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return err;
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#else
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__set_errno (ENOSYS);
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return -1;
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#endif
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}
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