mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-30 10:45:40 +03:00
94070f86c0
Linux 4.12 (b745fafaf70c0a98a2e1e7ac8cb14542889ceb0e) adds a new
p{read,write}v2 flag RWF_NOWAIT. This patch adds it for linux
uio-ext.h header.
Checked on x86_64-linux-gnu (on a 4.10 kernel).
[BZ #21738]
* manual/llio.texi (RWF_NOWAIT): New item.
* misc/tst-preadvwritev2-common.c (do_test_with_invalid_flags):
Add RWF_NOWAIT check.
* sysdeps/unix/sysv/linux/bits/uio-ext.h (RWF_NOWAIT): New flag.
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/* Operating system-specific extensions to sys/uio.h - Linux version.
|
|
Copyright (C) 1996-2017 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _BITS_UIO_EXT_H
|
|
#define _BITS_UIO_EXT_H 1
|
|
|
|
#ifndef _SYS_UIO_H
|
|
# error "Never include <bits/uio-ext.h> directly; use <sys/uio.h> instead."
|
|
#endif
|
|
|
|
__BEGIN_DECLS
|
|
|
|
/* Read from another process' address space. */
|
|
extern ssize_t process_vm_readv (pid_t __pid, const struct iovec *__lvec,
|
|
unsigned long int __liovcnt,
|
|
const struct iovec *__rvec,
|
|
unsigned long int __riovcnt,
|
|
unsigned long int __flags)
|
|
__THROW;
|
|
|
|
/* Write to another process' address space. */
|
|
extern ssize_t process_vm_writev (pid_t __pid, const struct iovec *__lvec,
|
|
unsigned long int __liovcnt,
|
|
const struct iovec *__rvec,
|
|
unsigned long int __riovcnt,
|
|
unsigned long int __flags)
|
|
__THROW;
|
|
|
|
|
|
/* Flags for preadv2/pwritev2: */
|
|
#define RWF_HIPRI 0x00000001 /* High priority request. */
|
|
#define RWF_DSYNC 0x00000002 /* per-IO O_DSYNC. */
|
|
#define RWF_SYNC 0x00000004 /* per-IO O_SYNC. */
|
|
#define RWF_NOWAIT 0x00000008 /* per-IO nonblocking mode. */
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* bits/uio-ext.h */
|