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c559a3ca84
1999-11-25 H.J. Lu <hjl@gnu.org> * stdlib/exit.c (exit): Run funtions only if __exit_funcs->idx > 0. 1999-11-25 Ulrich Drepper <drepper@cygnus.com> * manual/charset.texi (iconv Examples): Add iconv call to flush state. Reported by Andrew Clausen <clausen@alphalink.com.au>. 1999-11-25 Andreas Jaeger <aj@suse.de> * manual/install.texi (Running make install): Better describe update from libc5. Patch by Michael Deutschmann <michael@talamasca.wkpowerlink.com>. 1999-11-25 Andreas Jaeger <aj@suse.de> * include/sys/mman.h: Remove K&R compatibility. 1999-11-15 Andreas Jaeger <aj@suse.de> * misc/sys/mman.h: Use __REDIRECT for mmap, correct prototype to use __off64_t. 1999-11-25 Ulrich Drepper <drepper@cygnus.com> * iconv/iconv_prog.c (process_block): For stateful charsets write out byte sequence to get to initial state at the end of the file. which was reported to not work (which proofed to be wrong).
108 lines
4.1 KiB
C
108 lines
4.1 KiB
C
/* Definitions for BSD-style memory management.
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Copyright (C) 1994, 95, 96, 97, 98, 99 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _SYS_MMAN_H
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#define _SYS_MMAN_H 1
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#include <features.h>
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#include <bits/types.h>
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#define __need_size_t
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#include <stddef.h>
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#include <bits/mman.h>
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/* Return value of `mmap' in case of an error. */
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#define MAP_FAILED ((void *) -1)
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__BEGIN_DECLS
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/* Map addresses starting near ADDR and extending for LEN bytes. from
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OFFSET into the file FD describes according to PROT and FLAGS. If ADDR
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is nonzero, it is the desired mapping address. If the MAP_FIXED bit is
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set in FLAGS, the mapping will be at ADDR exactly (which must be
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page-aligned); otherwise the system chooses a convenient nearby address.
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The return value is the actual mapping address chosen or MAP_FAILED
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for errors (in which case `errno' is set). A successful `mmap' call
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deallocates any previous mapping for the affected region. */
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#ifndef __USE_FILE_OFFSET64
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extern void *mmap (void *__addr, size_t __len, int __prot,
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int __flags, int __fd, __off_t __offset) __THROW;
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#else
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# ifdef __REDIRECT
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extern void * __REDIRECT (mmap,
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(void *__addr, size_t __len, int __prot,
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int __flags, int __fd, __off64_t __offset) __THROW,
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mmap64);
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# else
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# define mmap mmap64
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# endif
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#endif
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#ifdef __USE_LARGEFILE64
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extern void *mmap64 (void *__addr, size_t __len, int __prot,
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int __flags, int __fd, __off64_t __offset) __THROW;
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#endif
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/* Deallocate any mapping for the region starting at ADDR and extending LEN
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bytes. Returns 0 if successful, -1 for errors (and sets errno). */
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extern int munmap (void *__addr, size_t __len) __THROW;
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/* Change the memory protection of the region starting at ADDR and
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extending LEN bytes to PROT. Returns 0 if successful, -1 for errors
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(and sets errno). */
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extern int mprotect (void *__addr, size_t __len, int __prot) __THROW;
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/* Synchronize the region starting at ADDR and extending LEN bytes with the
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file it maps. Filesystem operations on a file being mapped are
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unpredictable before this is done. Flags are from the MS_* set. */
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extern int msync (void *__addr, size_t __len, int __flags) __THROW;
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#ifdef __USE_BSD
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/* Advise the system about particular usage patterns the program follows
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for the region starting at ADDR and extending LEN bytes. */
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extern int madvise (void *__addr, size_t __len, int __advice) __THROW;
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#endif
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/* Guarantee all whole pages mapped by the range [ADDR,ADDR+LEN) to
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be memory resident. */
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extern int mlock (__const void *__addr, size_t __len) __THROW;
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/* Unlock whole pages previously mapped by the range [ADDR,ADDR+LEN). */
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extern int munlock (__const void *__addr, size_t __len) __THROW;
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/* Cause all currently mapped pages of the process to be memory resident
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until unlocked by a call to the `munlockall', until the process exits,
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or until the process calls `execve'. */
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extern int mlockall (int __flags) __THROW;
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/* All currently mapped pages of the process' address space become
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unlocked. */
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extern int munlockall (void) __THROW;
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#ifdef __USE_MISC
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/* Remap pages mapped by the range [ADDR,ADDR+OLD_LEN) to new length
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NEW_LEN. If MAY_MOVE is MREMAP_MAYMOVE the returned address may
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differ from ADDR. */
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extern void *mremap (void *__addr, size_t __old_len, size_t __new_len,
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int __may_move) __THROW;
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#endif
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__END_DECLS
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#endif /* sys/mman.h */
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