LCOM1920-T02G10

/*        $NetBSD: swap.h,v 1.8 2009/01/14 02:20:45 mrg Exp $        */

/*

 * Copyright (c) 1995, 1996, 1998, 2009 Matthew R. Green

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef _SYS_SWAP_H_

#define _SYS_SWAP_H_

#include <sys/syslimits.h>

/* Thise structure is used to return swap information for userland */

struct swapent {

        dev_t        se_dev;                        /* device id */

        int        se_flags;                /* flags */

        int        se_nblks;                /* total blocks */

        int        se_inuse;                /* blocks in use */

        int        se_priority;                /* priority of this device */

        char        se_path[PATH_MAX+1];        /* path name */

};

#define SWAP_ON                1                /* begin swapping on device */

#define SWAP_OFF        2                /* stop swapping on device */

#define SWAP_NSWAP        3                /* how many swap devices ? */

#define SWAP_STATS13        4                /* old SWAP_STATS, no se_path */

#define SWAP_CTL        5                /* change priority on device */

#define SWAP_STATS50        6                /* old SWAP_STATS, 32 bit dev_t */

#define SWAP_DUMPDEV        7                /* use this device as dump device */

#define SWAP_GETDUMPDEV        8                /* use this device as dump device */

#define SWAP_DUMPOFF        9                /* stop using the dump device */

#define SWAP_STATS        10                /* get device info */

#define SWF_INUSE        0x00000001        /* in use: we have swapped here */

#define SWF_ENABLE        0x00000002        /* enabled: we can swap here */

#define SWF_BUSY        0x00000004        /* busy: I/O happening here */

#define SWF_FAKE        0x00000008        /* fake: still being built */

#endif /* _SYS_SWAP_H_ */