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-rw-r--r--misc/sys/mman.h102
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diff --git a/misc/sys/mman.h b/misc/sys/mman.h
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+/* Definitions for BSD-style memory management.
+   Copyright (C) 1994, 1995, 1996, 1997, 1998 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef	_SYS_MMAN_H
+#define	_SYS_MMAN_H	1
+
+#include <features.h>
+#include <bits/types.h>
+#define __need_size_t
+#include <stddef.h>
+
+#include <bits/mman.h>
+
+/* Return value of `mmap' in case of an error.  */
+#define MAP_FAILED	((__ptr_t) -1)
+
+__BEGIN_DECLS
+/* Map addresses starting near ADDR and extending for LEN bytes.  from
+   OFFSET into the file FD describes according to PROT and FLAGS.  If ADDR
+   is nonzero, it is the desired mapping address.  If the MAP_FIXED bit is
+   set in FLAGS, the mapping will be at ADDR exactly (which must be
+   page-aligned); otherwise the system chooses a convenient nearby address.
+   The return value is the actual mapping address chosen or MAP_FAILED
+   for errors (in which case `errno' is set).  A successful `mmap' call
+   deallocates any previous mapping for the affected region.  */
+
+#ifndef __USE_FILE_OFFSET64
+extern __ptr_t mmap __P ((__ptr_t __addr, size_t __len, int __prot,
+			int __flags, int __fd, __off_t __offset));
+#else
+extern __ptr_t mmap __P ((__ptr_t __addr, size_t __len, int __prot,
+			int __flags, int __fd, __off_t __offset))
+     __asm__ ("mmap64");
+#endif
+#ifdef __USE_LARGEFILE64
+extern __ptr_t mmap64 __P ((__ptr_t __addr, size_t __len, int __prot,
+			  int __flags, int __fd, __off64_t __offset));
+#endif
+
+/* Deallocate any mapping for the region starting at ADDR and extending LEN
+   bytes.  Returns 0 if successful, -1 for errors (and sets errno).  */
+extern int munmap __P ((__ptr_t __addr, size_t __len));
+
+/* Change the memory protection of the region starting at ADDR and
+   extending LEN bytes to PROT.  Returns 0 if successful, -1 for errors
+   (and sets errno).  */
+extern int mprotect __P ((__ptr_t __addr, size_t __len, int __prot));
+
+/* Synchronize the region starting at ADDR and extending LEN bytes with the
+   file it maps.  Filesystem operations on a file being mapped are
+   unpredictable before this is done.  Flags are from the MS_* set.  */
+extern int msync __P ((__ptr_t __addr, size_t __len, int __flags));
+
+#ifdef __USE_BSD
+/* Advise the system about particular usage patterns the program follows
+   for the region starting at ADDR and extending LEN bytes.  */
+extern int madvise __P ((__ptr_t __addr, size_t __len, int __advice));
+#endif
+
+/* Guarantee all whole pages mapped by the range [ADDR,ADDR+LEN) to
+   be memory resident.  */
+extern int mlock __P ((__const __ptr_t __addr, size_t __len));
+
+/* Unlock whole pages previously mapped by the range [ADDR,ADDR+LEN).  */
+extern int munlock __P ((__const __ptr_t __addr, size_t __len));
+
+/* Cause all currently mapped pages of the process to be memory resident
+   until unlocked by a call to the `munlockall', until the process exits,
+   or until the process calls `execve'.  */
+extern int mlockall __P ((int __flags));
+
+/* All currently mapped pages of the process' address space become
+   unlocked.  */
+extern int munlockall __P ((void));
+
+#ifdef __USE_MISC
+/* Remap pages mapped by the range [ADDR,ADDR+OLD_LEN) to new length
+   NEW_LEN.  If MAY_MOVE is MREMAP_MAYMOVE the returned address may
+   differ from ADDR.  */
+extern __ptr_t mremap __P ((__ptr_t __addr, size_t __old_len,
+			  size_t __new_len, int __may_move));
+#endif
+
+__END_DECLS
+
+#endif	/* sys/mman.h */