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git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/unix/sysv/linux/generic/wordsize-32/pread64.c
1 /* Copyright (C) 2011-2014 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
4 Based on work contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library. If not, see
18 <http://www.gnu.org/licenses/>. */
24 #include <sysdep-cancel.h>
25 #include <sys/syscall.h>
27 #include <kernel-features.h>
30 do_pread64 (int fd
, void *buf
, size_t count
, off64_t offset
)
32 return INLINE_SYSCALL (pread64
, __ALIGNMENT_COUNT (5, 6), fd
,
33 buf
, count
, __ALIGNMENT_ARG
34 __LONG_LONG_PAIR ((off_t
) (offset
>> 32),
35 (off_t
) (offset
& 0xffffffff)));
40 __libc_pread64 (fd
, buf
, count
, offset
)
47 return do_pread64 (fd
, buf
, count
, offset
);
49 int oldtype
= LIBC_CANCEL_ASYNC ();
51 ssize_t result
= do_pread64 (fd
, buf
, count
, offset
);
53 LIBC_CANCEL_RESET (oldtype
);
58 weak_alias (__libc_pread64
, __pread64
) weak_alias (__libc_pread64
, pread64
)