1/* Copyright (C) 2016-2020 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <sys/uio.h>
19#include <sysdep-cancel.h>
20
21#ifdef __ASSUME_PWRITEV
22
23# ifndef __NR_pwritev64
24# define __NR_pwritev64 __NR_pwritev
25# endif
26
27ssize_t
28pwritev64 (int fd, const struct iovec *vector, int count, off64_t offset)
29{
30 return SYSCALL_CANCEL (pwritev64, fd, vector, count, LO_HI_LONG (offset));
31}
32#else
33static ssize_t __atomic_pwritev64_replacement (int, const struct iovec *,
34 int, off64_t);
35ssize_t
36pwritev64 (int fd, const struct iovec *vector, int count, off64_t offset)
37{
38#ifdef __NR_pwritev64
39 ssize_t result = SYSCALL_CANCEL (pwritev64, fd, vector, count,
40 LO_HI_LONG (offset));
41 if (result >= 0 || errno != ENOSYS)
42 return result;
43#endif
44 return __atomic_pwritev64_replacement (fd, vector, count, offset);
45}
46# define PWRITEV static __atomic_pwritev64_replacement
47# define PWRITE __pwrite64
48# define OFF_T off64_t
49# include <sysdeps/posix/pwritev_common.c>
50#endif
51libc_hidden_def (pwritev64)
52
53#ifdef __OFF_T_MATCHES_OFF64_T
54strong_alias (pwritev64, pwritev)
55libc_hidden_def (pwritev)
56#endif
57