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glibc/libio/stdfiles.c
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/* Copyright (C) 1993-2016 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. */ | |
/* This file provides definitions of _IO_stdin, _IO_stdout, and _IO_stderr | |
for C code. Compare stdstreams.cc. | |
(The difference is that here the vtable field is set to 0, | |
so the objects defined are not valid C++ objects. On the other | |
hand, we don't need a C++ compiler to build this file.) */ | |
#include "libioP.h" | |
#ifdef _IO_MTSAFE_IO | |
# if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T | |
# define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \ | |
static _IO_lock_t _IO_stdfile_##FD##_lock = _IO_lock_initializer; \ | |
static struct _IO_wide_data _IO_wide_data_##FD \ | |
= { ._wide_vtable = &_IO_wfile_jumps }; \ | |
struct _IO_FILE_plus NAME \ | |
= {FILEBUF_LITERAL(CHAIN, FLAGS, FD, &_IO_wide_data_##FD), \ | |
&_IO_file_jumps}; | |
# else | |
# define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \ | |
static _IO_lock_t _IO_stdfile_##FD##_lock = _IO_lock_initializer; \ | |
struct _IO_FILE_plus NAME \ | |
= {FILEBUF_LITERAL(CHAIN, FLAGS, FD, NULL), \ | |
&_IO_file_jumps}; | |
# endif | |
#else | |
# if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T | |
# define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \ | |
static struct _IO_wide_data _IO_wide_data_##FD \ | |
= { ._wide_vtable = &_IO_wfile_jumps }; \ | |
struct _IO_FILE_plus NAME \ | |
= {FILEBUF_LITERAL(CHAIN, FLAGS, FD, &_IO_wide_data_##FD), \ | |
&_IO_file_jumps}; | |
# else | |
# define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \ | |
struct _IO_FILE_plus NAME \ | |
= {FILEBUF_LITERAL(CHAIN, FLAGS, FD, NULL), \ | |
&_IO_file_jumps}; | |
# endif | |
#endif | |
DEF_STDFILE(_IO_2_1_stdin_, 0, 0, _IO_NO_WRITES); | |
DEF_STDFILE(_IO_2_1_stdout_, 1, &_IO_2_1_stdin_, _IO_NO_READS); | |
DEF_STDFILE(_IO_2_1_stderr_, 2, &_IO_2_1_stdout_, _IO_NO_READS+_IO_UNBUFFERED); | |
struct _IO_FILE_plus *_IO_list_all = &_IO_2_1_stderr_; | |
libc_hidden_data_def (_IO_list_all) |