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Editing File: /usr/include/bits/uio-ext.h

/* Operating system-specific extensions to sys/uio.h - Linux version.
   Copyright (C) 1996-2018 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.  */
#define RWF_APPEND	0x00000010 /* per-IO O_APPEND.  */

__END_DECLS

#endif /* bits/uio-ext.h */

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