| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* Calls to enable and disable swapping on specified locations. Linux version. |
| 2 | Copyright (C) 1996, 1998, 1999 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 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 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, write to the Free |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 18 | 02111-1307 USA. */ |
| 19 | |
| 20 | #ifndef _SYS_SWAP_H |
| 21 | |
| 22 | #define _SYS_SWAP_H 1 |
| 23 | #include <features.h> |
| 24 | |
| 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 |
| 31 | |
| 32 | __BEGIN_DECLS |
| 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 (__const char *__path, int __flags) __THROW; |
| 37 | |
| 38 | /* Stop using block special device PATH for swapping. */ |
| 39 | extern int swapoff (__const char *__path) __THROW; |
| 40 | |
| 41 | __END_DECLS |
| 42 | |
| 43 | #endif /* _SYS_SWAP_H */ |