/*- * 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 8.2 (Berkeley) 1/9/95 * $FreeBSD: src/sys/sys/mman.h,v 1.29.2.1 2001/08/25 07:25:43 dillon Exp $ * $DragonFly: src/sys/sys/mman.h,v 1.3 2003/08/20 07:31:21 rob Exp $ */ #ifndef _SYS_MMAN_H_ #define _SYS_MMAN_H_ #include /* * Inheritance for minherit() */ #define INHERIT_SHARE 0 #define INHERIT_COPY 1 #define INHERIT_NONE 2 /* * Protections are chosen from these bits, or-ed together */ #define PROT_NONE 0x00 /* no permissions */ #define PROT_READ 0x01 /* pages can be read */ #define PROT_WRITE 0x02 /* pages can be written */ #define PROT_EXEC 0x04 /* pages can be executed */ /* * Flags contain sharing type and options. * Sharing types; choose one. */ #define MAP_SHARED 0x0001 /* share changes */ #define MAP_PRIVATE 0x0002 /* changes are private */ #define MAP_COPY MAP_PRIVATE /* Obsolete */ /* * Other flags */ #define MAP_FIXED 0x0010 /* map addr must be exactly as requested */ #define MAP_RENAME 0x0020 /* Sun: rename private pages to file */ #define MAP_NORESERVE 0x0040 /* Sun: don't reserve needed swap area */ #define MAP_INHERIT 0x0080 /* region is retained after exec */ #define MAP_NOEXTEND 0x0100 /* for MAP_FILE, don't change file size */ #define MAP_HASSEMAPHORE 0x0200 /* region may contain semaphores */ #define MAP_STACK 0x0400 /* region grows down, like a stack */ #define MAP_NOSYNC 0x0800 /* page to but do not sync underlying file */ /* * Extended flags */ #define MAP_NOCORE 0x00020000 /* dont include these pages in a coredump */ #ifdef _P1003_1B_VISIBLE /* * Process memory locking */ #define MCL_CURRENT 0x0001 /* Lock only current memory */ #define MCL_FUTURE 0x0002 /* Lock all future memory as well */ #endif /* _P1003_1B_VISIBLE */ /* * Error return from mmap() */ #define MAP_FAILED ((void *)-1) /* * msync() flags */ #define MS_SYNC 0x0000 /* msync synchronously */ #define MS_ASYNC 0x0001 /* return immediately */ #define MS_INVALIDATE 0x0002 /* invalidate all cached data */ /* * Mapping type */ #define MAP_FILE 0x0000 /* map from file (default) */ #define MAP_ANON 0x1000 /* allocated from memory, swap space */ /* * 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_FREE 5 /* dont need these pages, and junk contents */ #define MADV_NOSYNC 6 /* try to avoid flushes to physical media */ #define MADV_AUTOSYNC 7 /* revert to default flushing strategy */ #define MADV_NOCORE 8 /* do not include these pages in a core file */ #define MADV_CORE 9 /* revert to including pages in a core file */ /* * Return bits from mincore */ #define MINCORE_INCORE 0x1 /* Page is incore */ #define MINCORE_REFERENCED 0x2 /* Page has been referenced by us */ #define MINCORE_MODIFIED 0x4 /* Page has been modified by us */ #define MINCORE_REFERENCED_OTHER 0x8 /* Page has been referenced */ #define MINCORE_MODIFIED_OTHER 0x10 /* Page has been modified */ #ifndef _KERNEL #include __BEGIN_DECLS #ifdef _P1003_1B_VISIBLE int mlockall (int); int munlockall (void); int shm_open (const char *, int, mode_t); int shm_unlink (const char *); #endif /* _P1003_1B_VISIBLE */ int mlock (const void *, size_t); #ifndef _MMAP_DECLARED #define _MMAP_DECLARED void * mmap (void *, size_t, int, int, int, off_t); #endif int mprotect (const void *, size_t, int); int msync (void *, size_t, int); int munlock (const void *, size_t); int munmap (void *, size_t); #ifndef _POSIX_SOURCE int madvise (void *, size_t, int); int mincore (const void *, size_t, char *); int minherit (void *, size_t, int); #endif __END_DECLS #endif /* !_KERNEL */ #endif