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Diffstat (limited to 'misc/sys/mman.h')
| -rw-r--r-- | misc/sys/mman.h | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/misc/sys/mman.h b/misc/sys/mman.h deleted file mode 100644 index d6bc842ca7..0000000000 --- a/misc/sys/mman.h +++ /dev/null @@ -1,151 +0,0 @@ -/* Definitions for BSD-style memory management. - Copyright (C) 1994-2017 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#ifndef _SYS_MMAN_H -#define _SYS_MMAN_H 1 - -#include <features.h> -#include <bits/types.h> -#define __need_size_t -#include <stddef.h> - -#ifndef __off_t_defined -# ifndef __USE_FILE_OFFSET64 -typedef __off_t off_t; -# else -typedef __off64_t off_t; -# endif -# define __off_t_defined -#endif - -#ifndef __mode_t_defined -typedef __mode_t mode_t; -# define __mode_t_defined -#endif - -#include <bits/mman.h> - -/* Return value of `mmap' in case of an error. */ -#define MAP_FAILED ((void *) -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 void *mmap (void *__addr, size_t __len, int __prot, - int __flags, int __fd, __off_t __offset) __THROW; -#else -# ifdef __REDIRECT_NTH -extern void * __REDIRECT_NTH (mmap, - (void *__addr, size_t __len, int __prot, - int __flags, int __fd, __off64_t __offset), - mmap64); -# else -# define mmap mmap64 -# endif -#endif -#ifdef __USE_LARGEFILE64 -extern void *mmap64 (void *__addr, size_t __len, int __prot, - int __flags, int __fd, __off64_t __offset) __THROW; -#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 (void *__addr, size_t __len) __THROW; - -/* 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 (void *__addr, size_t __len, int __prot) __THROW; - -/* 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. - - This function is a cancellation point and therefore not marked with - __THROW. */ -extern int msync (void *__addr, size_t __len, int __flags); - -#ifdef __USE_MISC -/* Advise the system about particular usage patterns the program follows - for the region starting at ADDR and extending LEN bytes. */ -extern int madvise (void *__addr, size_t __len, int __advice) __THROW; -#endif -#ifdef __USE_XOPEN2K -/* This is the POSIX name for this function. */ -extern int posix_madvise (void *__addr, size_t __len, int __advice) __THROW; -#endif - -/* Guarantee all whole pages mapped by the range [ADDR,ADDR+LEN) to - be memory resident. */ -extern int mlock (const void *__addr, size_t __len) __THROW; - -/* Unlock whole pages previously mapped by the range [ADDR,ADDR+LEN). */ -extern int munlock (const void *__addr, size_t __len) __THROW; - -/* 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 (int __flags) __THROW; - -/* All currently mapped pages of the process' address space become - unlocked. */ -extern int munlockall (void) __THROW; - -#ifdef __USE_MISC -/* mincore returns the memory residency status of the pages in the - current process's address space specified by [start, start + len). - The status is returned in a vector of bytes. The least significant - bit of each byte is 1 if the referenced page is in memory, otherwise - it is zero. */ -extern int mincore (void *__start, size_t __len, unsigned char *__vec) - __THROW; -#endif - -#ifdef __USE_GNU -/* Remap pages mapped by the range [ADDR,ADDR+OLD_LEN) to new length - NEW_LEN. If MREMAP_MAYMOVE is set in FLAGS the returned address - may differ from ADDR. If MREMAP_FIXED is set in FLAGS the function - takes another parameter which is a fixed address at which the block - resides after a successful call. */ -extern void *mremap (void *__addr, size_t __old_len, size_t __new_len, - int __flags, ...) __THROW; - -/* Remap arbitrary pages of a shared backing store within an existing - VMA. */ -extern int remap_file_pages (void *__start, size_t __size, int __prot, - size_t __pgoff, int __flags) __THROW; -#endif - - -/* Open shared memory segment. */ -extern int shm_open (const char *__name, int __oflag, mode_t __mode); - -/* Remove shared memory segment. */ -extern int shm_unlink (const char *__name); - -__END_DECLS - -#endif /* sys/mman.h */ |