mman.h

cygwin, 著名的在win32下模拟unix操作系统的东东

/* sys/mman.h

   Copyright 1996, 1997, 1998, 2000, 2001 Red Hat, Inc.

This file is part of Cygwin.

This software is a copyrighted work licensed under the terms of the
Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
details. */

#ifndef _SYS_MMAN_H_
#define _SYS_MMAN_H_

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

#include <stddef.h>
#include <sys/types.h>

#define PROT_NONE 0
#define PROT_READ 1
#define PROT_WRITE 2
#define PROT_EXEC 4

#define MAP_FILE 0
#define MAP_SHARED 1
#define MAP_PRIVATE 2
#define MAP_TYPE 0xF
#define MAP_FIXED 0x10
#define MAP_ANONYMOUS 0x20
#define MAP_ANON MAP_ANONYMOUS

#define MAP_FAILED ((caddr_t)-1)

/*
 * Flags for msync.
 */
#define MS_ASYNC 1
#define MS_SYNC 2
#define MS_INVALIDATE 4

extern caddr_t mmap (caddr_t __addr, size_t __len, int __prot, int __flags, int __fd, off_t __off);
extern int munmap (caddr_t __addr, size_t __len);
extern int mprotect (caddr_t __addr, size_t __len, int __prot);
extern int msync (caddr_t __addr, size_t __len, int __flags);

#ifdef __cplusplus
};
#endif /* __cplusplus */

#endif /*  _SYS_MMAN_H_ */