/* Calls to enable and disable swapping on specified locations. Linux version.
Copyright (C) 1996, 1998, 1999 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _SYS_SWAP_H
#define _SYS_SWAP_H 1
#include <features.h>
/* The swap priority is encoded as:
(prio << SWAP_FLAG_PRIO_SHIFT) & SWAP_FLAG_PRIO_MASK
*/
#define SWAP_FLAG_PREFER 0x8000 /* Set if swap priority is specified. */
#define SWAP_FLAG_PRIO_MASK 0x7fff
#define SWAP_FLAG_PRIO_SHIFT 0
__BEGIN_DECLS
/* Make the block special device PATH available to the system for swapping.
This call is restricted to the super-user. */
extern int swapon (__const char *__path, int __flags) __THROW;
/* Stop using block special device PATH for swapping. */
extern int swapoff (__const char *__path) __THROW;
__END_DECLS
#endif /* _SYS_SWAP_H */
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