/* $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_ */ |