[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / sys / swap.h

/* Calls to enable and disable swapping on specified locations.  Linux version.
   Copyright (C) 1996, 1998 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 Library General Public License as
   published by the Free Software Foundation; either version 2 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  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 __P ((__const char *__path, int __flags));

/* Stop using block special device PATH for swapping.  */
extern int swapoff __P ((__const char *__path));

__END_DECLS

#endif /* _SYS_SWAP_H */
Commit	Line	Data
4d6acc61	1	/* Calls to enable and disable swapping on specified locations. Linux version.
8325d82c	2	Copyright (C) 1996, 1998 Free Software Foundation, Inc.
8a4b65b4	3	This file is part of the GNU C Library.
4d6acc61	4
8a4b65b4 UD	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Library General Public License as
	7	published by the Free Software Foundation; either version 2 of the
	8	License, or (at your option) any later version.
4d6acc61	9
8a4b65b4 UD	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	Library General Public License for more details.
4d6acc61	14
8a4b65b4 UD	15	You should have received a copy of the GNU Library General Public
	16	License along with the GNU C Library; see the file COPYING.LIB. If not,
	17	write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	18	Boston, MA 02111-1307, USA. */
4d6acc61	19
8a4b65b4	20	#ifndef _SYS_SWAP_H
4d6acc61	21
8a4b65b4	22	#define _SYS_SWAP_H 1
4d6acc61 RM	23	#include <features.h>
4d6acc61 RM	24
8325d82c UD	25	/* The swap priority is encoded as:
	26	(prio << SWAP_FLAG_PRIO_SHIFT) & SWAP_FLAG_PRIO_MASK
	27	*/
	28	#define SWAP_FLAG_PREFER 0x8000 /* Set if swap priority is specified. */
	29	#define SWAP_FLAG_PRIO_MASK 0x7fff
	30	#define SWAP_FLAG_PRIO_SHIFT 0
4d6acc61	31
8a4b65b4	32	__BEGIN_DECLS
4d6acc61 RM	33
	34	/* Make the block special device PATH available to the system for swapping.
	35	This call is restricted to the super-user. */
	36	extern int swapon __P ((__const char *__path, int __flags));
	37
	38	/* Stop using block special device PATH for swapping. */
	39	extern int swapoff __P ((__const char *__path));
	40
8a4b65b4	41	__END_DECLS
4d6acc61	42
8a4b65b4	43	#endif /* _SYS_SWAP_H */