/*-
 * Copyright (c) 1982, 1986, 1993
 *	The Regents of the University of California.  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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
 *
 *	@(#)mman.h	8.1 (Berkeley) 6/2/93
 */

/*
 * Currently unsupported:
 *
 * [TYM]	POSIX_TYPED_MEM_ALLOCATE
 * [TYM]	POSIX_TYPED_MEM_ALLOCATE_CONTIG
 * [TYM]	POSIX_TYPED_MEM_MAP_ALLOCATABLE
 * [TYM]	struct posix_typed_mem_info
 * [TYM]	posix_mem_offset()
 * [TYM]	posix_typed_mem_get_info()
 * [TYM]	posix_typed_mem_open()
 */

#ifndef _SYS_MMAN_H_
#define _SYS_MMAN_H_

#include <sys/types.h>
#ifndef __DEFS_H__
#    include <_defs.h>
#endif

/*
 * Protections are chosen from these bits, or-ed together
 */
#define PROT_NONE 0x00  /* [MC2] no permissions */
#define PROT_READ 0x01  /* [MC2] pages can be read */
#define PROT_WRITE 0x02 /* [MC2] pages can be written */
#define PROT_EXEC 0x04  /* [MC2] pages can be executed */

/*
 * Flags contain sharing type and options.
 * Sharing types; choose one.
 */
#define MAP_SHARED 0x0001  /* [MF|SHM] share changes */
#define MAP_PRIVATE 0x0002 /* [MF|SHM] changes are private */

/*
 * Other flags
 */
#define MAP_FIXED 0x0010 /* [MF|SHM] interpret addr exactly */

/*
 * Process memory locking
 */
#define MCL_CURRENT 0x0001 /* [ML] Lock only current memory */
#define MCL_FUTURE 0x0002  /* [ML] Lock all future memory as well */

/*
 * Error return from mmap()
 */
#define MAP_FAILED ((void*)-1) /* [MF|SHM] mmap failed */

/*
 * msync() flags
 */
#define MS_ASYNC 0x0001      /* [MF|SIO] return immediately */
#define MS_INVALIDATE 0x0002 /* [MF|SIO] invalidate all cached data */
#define MS_SYNC 0x0010       /* [MF|SIO] msync synchronously */

/*
 * Advice to madvise
 */
#define POSIX_MADV_NORMAL 0     /* [MC1] no further special treatment */
#define POSIX_MADV_RANDOM 1     /* [MC1] expect random page refs */
#define POSIX_MADV_SEQUENTIAL 2 /* [MC1] expect sequential page refs */
#define POSIX_MADV_WILLNEED 3   /* [MC1] will need these pages */
#define POSIX_MADV_DONTNEED 4   /* [MC1] dont need these pages */

#ifndef RC_INVOKED

#ifdef __cplusplus
extern "C"
{
#endif
    /* [ML] */
    int _RTL_FUNC _IMPORT mlockall(int);
    int _RTL_FUNC _IMPORT munlockall(void);
    /* [MR] */
    int _RTL_FUNC _IMPORT mlock(const void*, size_t);
#ifndef _MMAP
#    define _MMAP
    /* [MC3]*/
    void _RTL_FUNC _IMPORT* mmap(void*, size_t, int, int, int, off_t);
#endif
    /* [MPR] */
    int _RTL_FUNC _IMPORT mprotect(void*, size_t, int);
    /* [MF|SIO] */
    int _RTL_FUNC _IMPORT msync(void*, size_t, int);
    /* [MR] */
    int _RTL_FUNC _IMPORT munlock(const void*, size_t);
    /* [MC3]*/
    int _RTL_FUNC _IMPORT munmap(void*, size_t);
    /* [SHM] */
    int _RTL_FUNC _IMPORT shm_open(const char*, int, ...);
    int _RTL_FUNC _IMPORT shm_unlink(const char*);
    /* [ADV] */
    int _RTL_FUNC _IMPORT posix_madvise(void*, size_t, int);

#ifdef __cplusplus
}
#endif
#endif

#endif /* !_SYS_MMAN_H_ */
