1/* Operating system-specific extensions to sys/uio.h - Linux version.
2 Copyright (C) 1996-2018 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#ifndef _BITS_UIO_EXT_H
20#define _BITS_UIO_EXT_H 1
21
22#ifndef _SYS_UIO_H
23# error "Never include <bits/uio-ext.h> directly; use <sys/uio.h> instead."
24#endif
25
26__BEGIN_DECLS
27
28/* Read from another process' address space. */
29extern ssize_t process_vm_readv (pid_t __pid, const struct iovec *__lvec,
30 unsigned long int __liovcnt,
31 const struct iovec *__rvec,
32 unsigned long int __riovcnt,
33 unsigned long int __flags)
34 __THROW;
35
36/* Write to another process' address space. */
37extern ssize_t process_vm_writev (pid_t __pid, const struct iovec *__lvec,
38 unsigned long int __liovcnt,
39 const struct iovec *__rvec,
40 unsigned long int __riovcnt,
41 unsigned long int __flags)
42 __THROW;
43
44/* Flags for preadv2/pwritev2. */
45#define RWF_HIPRI 0x00000001 /* High priority request. */
46#define RWF_DSYNC 0x00000002 /* per-IO O_DSYNC. */
47#define RWF_SYNC 0x00000004 /* per-IO O_SYNC. */
48#define RWF_NOWAIT 0x00000008 /* per-IO nonblocking mode. */
49
50__END_DECLS
51
52#endif /* bits/uio-ext.h */
53