Current File : //proc/self/root/usr/include/sys/swap.h
/* Calls to enable and disable swapping on specified locations. Linux version.
Copyright (C) 1996-2018 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, see
<http://www.gnu.org/licenses/>. */
#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
#define SWAP_FLAG_DISCARD 0x10000 /* Discard swap cluster after use. */
__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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