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Diffstat (limited to 'libio/filedoalloc.c')
-rw-r--r-- | libio/filedoalloc.c | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/libio/filedoalloc.c b/libio/filedoalloc.c deleted file mode 100644 index a27455c..0000000 --- a/libio/filedoalloc.c +++ /dev/null @@ -1,120 +0,0 @@ -/* Copyright (C) 1993, 1997 Free Software Foundation, Inc. - This file is part of the GNU IO Library. - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License as - published by the Free Software Foundation; either version 2, or (at - your option) any later version. - - This 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 - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this library; see the file COPYING. If not, write to - the Free Software Foundation, 59 Temple Place - Suite 330, Boston, - MA 02111-1307, USA. - - As a special exception, if you link this library with files - compiled with a GNU compiler to produce an executable, this does - not cause the resulting executable to be covered by the GNU General - Public License. This exception does not however invalidate any - other reasons why the executable file might be covered by the GNU - General Public License. */ - -/* - * Copyright (c) 1990 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. [rescinded 22 July 1999] - * 4.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. - */ - -/* Modified for GNU iostream by Per Bothner 1991, 1992. */ - -#include "libioP.h" -#include <sys/types.h> -#include <sys/stat.h> -#ifdef __STDC__ -#include <stdlib.h> -#include <unistd.h> -#endif - -#ifdef _LIBC -# undef isatty -# define isatty(Fd) __isatty (Fd) -#endif - -/* - * Allocate a file buffer, or switch to unbuffered I/O. - * Per the ANSI C standard, ALL tty devices default to line buffered. - * - * As a side effect, we set __SOPT or __SNPT (en/dis-able fseek - * optimisation) right after the _fstat() that finds the buffer size. - */ - -int -_IO_file_doallocate (fp) - _IO_FILE *fp; -{ - _IO_size_t size; - int couldbetty; - char *p; - struct stat st; - -#if !defined(_LIBC) && !defined(__linux__) - /* If _IO_cleanup_registration_needed is non-zero, we should call the - function it points to. This is to make sure _IO_cleanup gets called - on exit. We call it from _IO_file_doallocate, since that is likely - to get called by any program that does buffered I/O. */ - if (_IO_cleanup_registration_needed) - (*_IO_cleanup_registration_needed) (); -#endif - - if (fp->_fileno < 0 || _IO_SYSSTAT (fp, &st) < 0) - { - couldbetty = 0; - size = _IO_BUFSIZ; -#if 0 - /* do not try to optimise fseek() */ - fp->_flags |= __SNPT; -#endif - } - else - { - couldbetty = S_ISCHR (st.st_mode); -#if _IO_HAVE_ST_BLKSIZE - size = st.st_blksize <= 0 ? _IO_BUFSIZ : st.st_blksize; -#else - size = _IO_BUFSIZ; -#endif - } - ALLOC_BUF (p, size, EOF); - _IO_setb (fp, p, p + size, 1); - if (couldbetty && isatty (fp->_fileno)) - fp->_flags |= _IO_LINE_BUF; - return 1; -} |