diff options
Diffstat (limited to 'libio/iofopen.c')
-rw-r--r-- | libio/iofopen.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/libio/iofopen.c b/libio/iofopen.c deleted file mode 100644 index 3d30dfd94a..0000000000 --- a/libio/iofopen.c +++ /dev/null @@ -1,109 +0,0 @@ -/* Copyright (C) 1993-2017 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/>. - - As a special exception, if you link the code in this file with - files compiled with a GNU compiler to produce an executable, - that does not cause the resulting executable to be covered by - the GNU Lesser General Public License. This exception does not - however invalidate any other reasons why the executable file - might be covered by the GNU Lesser General Public License. - This exception applies to code released by its copyright holders - in files containing the exception. */ - -#include "libioP.h" -#include <fcntl.h> -#include <stdlib.h> -#include <stddef.h> -#ifdef _LIBC -# include <shlib-compat.h> -#else -# define _IO_new_fopen fopen -#endif - -_IO_FILE * -__fopen_maybe_mmap (_IO_FILE *fp) -{ -#ifdef _G_HAVE_MMAP - if ((fp->_flags2 & _IO_FLAGS2_MMAP) && (fp->_flags & _IO_NO_WRITES)) - { - /* Since this is read-only, we might be able to mmap the contents - directly. We delay the decision until the first read attempt by - giving it a jump table containing functions that choose mmap or - vanilla file operations and reset the jump table accordingly. */ - - if (fp->_mode <= 0) - _IO_JUMPS_FILE_plus (fp) = &_IO_file_jumps_maybe_mmap; - else - _IO_JUMPS_FILE_plus (fp) = &_IO_wfile_jumps_maybe_mmap; - fp->_wide_data->_wide_vtable = &_IO_wfile_jumps_maybe_mmap; - } -#endif - return fp; -} - - -_IO_FILE * -__fopen_internal (const char *filename, const char *mode, int is32) -{ - struct locked_FILE - { - struct _IO_FILE_plus fp; -#ifdef _IO_MTSAFE_IO - _IO_lock_t lock; -#endif - struct _IO_wide_data wd; - } *new_f = (struct locked_FILE *) malloc (sizeof (struct locked_FILE)); - - if (new_f == NULL) - return NULL; -#ifdef _IO_MTSAFE_IO - new_f->fp.file._lock = &new_f->lock; -#endif -#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T - _IO_no_init (&new_f->fp.file, 0, 0, &new_f->wd, &_IO_wfile_jumps); -#else - _IO_no_init (&new_f->fp.file, 1, 0, NULL, NULL); -#endif - _IO_JUMPS (&new_f->fp) = &_IO_file_jumps; - _IO_new_file_init_internal (&new_f->fp); -#if !_IO_UNIFIED_JUMPTABLES - new_f->fp.vtable = NULL; -#endif - if (_IO_file_fopen ((_IO_FILE *) new_f, filename, mode, is32) != NULL) - return __fopen_maybe_mmap (&new_f->fp.file); - - _IO_un_link (&new_f->fp); - free (new_f); - return NULL; -} - -_IO_FILE * -_IO_new_fopen (const char *filename, const char *mode) -{ - return __fopen_internal (filename, mode, 1); -} - -#ifdef _LIBC -strong_alias (_IO_new_fopen, __new_fopen) -versioned_symbol (libc, _IO_new_fopen, _IO_fopen, GLIBC_2_1); -versioned_symbol (libc, __new_fopen, fopen, GLIBC_2_1); - -# if !defined O_LARGEFILE || O_LARGEFILE == 0 -weak_alias (_IO_new_fopen, _IO_fopen64) -weak_alias (_IO_new_fopen, fopen64) -# endif -#endif |