/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* bos72X src/bos/kernel/sys/mman.h 1.21.1.2 */
/* */
/* Licensed Materials - Property of IBM */
/* */
/* COPYRIGHT International Business Machines Corp. 1991,2021 */
/* All Rights Reserved */
/* */
/* US Government Users Restricted Rights - Use, duplication or */
/* disclosure restricted by GSA ADP Schedule Contract with IBM Corp. */
/* */
/* IBM_PROLOG_END_TAG */
/* @(#)35 1.21.1.2 src/bos/kernel/sys/mman.h, sysvmm, bos72X, x2021_25A9 6/4/21 03:16:08 */
/*
* COMPONENT_NAME: (SYSVMM) Virtual Memory Manager
*
* FUNCTIONS:
*
* ORIGINS: 65 27
*
* (C) COPYRIGHT International Business Machines Corp. 1991, 1996
* All Rights Reserved
* Licensed Materials - Property of IBM
*
* US Government Users Restricted Rights - Use, duplication or
* disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
*/
/*
* (c) Copyright 1990, OPEN SOFTWARE FOUNDATION, INC.
* ALL RIGHTS RESERVED
*/
/*
* Mach Operating System
* Copyright (c) 1989 Carnegie-Mellon University
* All rights reserved. The CMU software License Agreement specifies
* the terms and conditions for use and redistribution.
*/
/*
* OSF/1 Release 1.0
*/
/*
* Copyright (c) 1982, 1986 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*
* @(#)mman.h 7.1 (Berkeley) 6/4/86
*/
#ifndef _H_MMAN
#define _H_MMAN
#ifndef _H_STANDARDS
#include <standards.h>
#endif
#include <comp_macros.h>
#ifdef __cplusplus
extern "C" {
#endif
#include <strict_stdtypes.h>
#ifndef _H_TYPES
#include <sys/types.h>
#endif
#include <end_strict_stdtypes.h>
#ifdef _POSIX_SOURCE
#if _POSIX_C_SOURCE >= 200112L
extern int posix_madvise(void *,size_t,int);
#define POSIX_MADV_NORMAL 1
#define POSIX_MADV_SEQUENTIAL 2
#define POSIX_MADV_RANDOM 3
#define POSIX_MADV_WILLNEED 4
#define POSIX_MADV_DONTNEED 5
#endif /* _POSIX_C_SOURCE >= 200112L */
#endif
#if _XOPEN_SOURCE_EXTENDED==1
#include <sys/types.h>
#ifdef _LARGE_FILES
#define mmap mmap64
#endif /* _LARGE_FILES */
/* protections are chosen from these bits, or-ed together */
/* flags contain sharing type, mapping type, and options */
/* protections are chosen from these bits, or-ed together */
#define PROT_NONE 0 /* no access to these pages */
#define PROT_READ 0x1 /* pages can be read */
#define PROT_WRITE 0x2 /* pages can be written */
#define PROT_EXEC 0x4 /* pages can be executed */
/* mapping visibility: choose either SHARED or PRIVATE */
#define MAP_SHARED 0x1 /* share changes */
#define MAP_PRIVATE 0x2 /* changes are private */
/* mapping placement: choose either FIXED or VARIABLE */
#define MAP_FIXED 0x100 /* map addr must be exactly as specified */
#define MAP_VARIABLE 0x00 /* system can place new region */
/* msync flags */
#define MS_ASYNC 0x10 /* Asynchronous cache flush */
#define MS_SYNC 0x20 /* Synchronous cache flush */
#define MS_INVALIDATE 0x40 /* Invalidate cached pages */
#define MS_EINTR 0x80 /* Flag for EINTR return code*/
/* For the IEEE POSIX 1003.1c Realtime option */
#define MCL_CURRENT 0x00000100
#define MCL_FUTURE 0x00000200
#define MAP_FAILED ((void *)-1)
#if defined(_NO_PROTO)
extern int mlock();
extern int munlock();
extern int mlockall();
extern int munlockall();
#else
extern int mlock(const void *, size_t);
extern int munlock(const void *, size_t);
extern int mlockall(int);
extern int munlockall(void);
#endif
#if defined(_NO_PROTO) || defined(_KERNEL)
#ifdef _KERNEL
extern caddr_t mmap();
#else
extern void *mmap();
#endif /* _KERNEL */
extern int _NOTHROW(mprotect, ());
extern int msync();
extern int munmap();
extern int shm_open();
extern int shm_unlink();
#else
extern void *mmap(void *, size_t, int, int, int, off_t);
extern int _NOTHROW(mprotect, (void *, size_t, int));
extern int msync(void *, size_t, int);
extern int munmap(void *, size_t);
#ifdef _LARGE_FILE_API
extern void *mmap64(void *, size_t, int, int, int, off64_t);
#endif
extern int shm_open(const char *, int, mode_t);
extern int shm_unlink(const char *);
#endif /* _NO_PROTO */
#endif /* _XOPEN_SOURCE_EXTENDED */
#ifdef _ALL_SOURCE
/* flags contain sharing type, mapping type, and options */
/* mapping region: choose either FILE or ANONYMOUS */
#define MAP_FILE 0x00 /* map from a file */
#define MAP_ANONYMOUS 0x10 /* map an unnamed region */
#define MAP_ANON 0x10 /* map an unnamed region */
#define MAP_TYPE 0xf0 /* the type of the region */
/* advice to madvise */
#define MADV_NORMAL 0 /* no further special treatment */
#define MADV_RANDOM 1 /* expect random page references */
#define MADV_SEQUENTIAL 2 /* expect sequential page references */
#define MADV_WILLNEED 3 /* will need these pages */
#define MADV_DONTNEED 4 /* dont need these pages */
#define MADV_SPACEAVAIL 5 /* ensure that resources are available */
/* msem conditions and structure */
typedef struct {
int msem_state; /* The semaphore is locked if non-zero. */
int msem_wanted; /* Processes are waiting on the semaphore. */
}msemaphore;
#define MSEM_UNLOCKED 0 /* Initialize the semaphore to unlocked */
#define MSEM_LOCKED 1 /* Initialize the semaphore to locked */
#define MSEM_IF_NOWAIT 2 /* Do not wait if semaphore is locked */
#define MSEM_IF_WAITERS 3 /* Unlock only if there are waiters */
#define MSEM_REMOVED 4 /* The semaphore is being removed */
#if !defined(_NO_PROTO) && !defined(_KERNEL)
extern int madvise(caddr_t, size_t, int);
extern int mincore(caddr_t, size_t, char *);
extern msemaphore *msem_init(msemaphore *, int);
extern int msem_lock(msemaphore *, int);
extern int msem_remove(msemaphore *);
extern int msem_unlock(msemaphore *, int);
#else /* _NO_PROTO || _KERNEL */
extern int madvise();
extern int mincore();
extern msemaphore *msem_init();
extern int msem_lock();
extern int msem_remove();
extern int msem_unlock();
#endif /* _NO_PROTO || _KERNEL */
#endif /* _ALL_SOURCE */
#ifdef __cplusplus
}
#endif
#endif /* _H_MMAN */