mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-12-05 14:29:28 +00:00
127 lines
4.2 KiB
C++
127 lines
4.2 KiB
C++
/*
|
|
Copyright (C) 1994 Free Software Foundation
|
|
|
|
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. */
|
|
|
|
|
|
/* This file provides definitions of _IO_stdin, _IO_stdout, and _IO_stderr
|
|
for C++ code. Compare stdfiles.c.
|
|
(The difference is that here the vtable field is set to
|
|
point to builtinbuf's vtable, so the objects are effectively
|
|
of class builtinbuf.) */
|
|
|
|
#include "libioP.h"
|
|
#include <stdio.h>
|
|
|
|
#if !defined(filebuf_vtable) && defined(__cplusplus)
|
|
#ifdef __GNUC__
|
|
extern char filebuf_vtable[]
|
|
asm (_G_VTABLE_LABEL_PREFIX
|
|
#if _G_VTABLE_LABEL_HAS_LENGTH
|
|
"7"
|
|
#endif
|
|
"filebuf");
|
|
#else /* !__GNUC__ */
|
|
#if _G_VTABLE_LABEL_HAS_LENGTH
|
|
#define filebuf_vtable _G_VTABLE_LABEL_PREFIX_ID##7filebuf
|
|
#else
|
|
#define filebuf_vtable _G_VTABLE_LABEL_PREFIX_ID##filebuf
|
|
#endif
|
|
extern char filebuf_vtable[];
|
|
#endif /* !__GNUC__ */
|
|
#endif /* !defined(filebuf_vtable) && defined(__cplusplus) */
|
|
|
|
#ifndef STD_VTABLE
|
|
#define STD_VTABLE (const struct _IO_jump_t *)filebuf_vtable
|
|
#endif
|
|
|
|
#ifdef _IO_MTSAFE_IO
|
|
#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), STD_VTABLE}
|
|
#else
|
|
#define DEF_STDFILE(NAME, FD, CHAIN, FLAGS) \
|
|
struct _IO_FILE_plus NAME = {FILEBUF_LITERAL(CHAIN, FLAGS, FD), STD_VTABLE}
|
|
#endif
|
|
|
|
DEF_STDFILE(_IO_stdin_, 0, 0, _IO_NO_WRITES);
|
|
DEF_STDFILE(_IO_stdout_, 1, &_IO_stdin_.file, _IO_NO_READS);
|
|
DEF_STDFILE(_IO_stderr_, 2, &_IO_stdout_.file,
|
|
_IO_NO_READS+_IO_UNBUFFERED);
|
|
|
|
#ifdef _STDIO_USES_IOSTREAM
|
|
_IO_FILE *_IO_list_all = &_IO_stderr_.file;
|
|
#else /* !_STDIO_USES_IOSTREAM */
|
|
#include "stdiostream.h"
|
|
|
|
struct _IO_fake_stdiobuf {
|
|
struct {
|
|
_IO_FILE file;
|
|
const void *vtable;
|
|
} s;
|
|
FILE *stdio_file;
|
|
};
|
|
|
|
/* Define stdiobuf_vtable as a name for the virtual function table
|
|
of the stdiobuf class. */
|
|
#ifndef stdiobuf_vtable
|
|
#ifdef __GNUC__
|
|
extern struct _IO_jump_t stdiobuf_vtable
|
|
asm (_G_VTABLE_LABEL_PREFIX
|
|
#if _G_VTABLE_LABEL_HAS_LENGTH
|
|
"8"
|
|
#endif
|
|
"stdiobuf");
|
|
#else /* !__GNUC__ */
|
|
#if _G_VTABLE_LABEL_HAS_LENGTH
|
|
#define stdiobuf_vtable _G_VTABLE_LABEL_PREFIX_ID##8stdiobuf
|
|
#else
|
|
#define stdiobuf_vtable _G_VTABLE_LABEL_PREFIX_ID##stdiobuf
|
|
#endif
|
|
extern struct _IO_jump_t stdiobuf_vtable;
|
|
#endif /* !__GNUC__ */
|
|
#endif /* !stdiobuf_vtable */
|
|
|
|
#ifdef _IO_MTSAFE_IO
|
|
#define DEF_STDIOFILE(NAME, FD, FILE, FLAGS, CHAIN) \
|
|
static _IO_lock_t _IO_stdfile_##FD##_lock = _IO_lock_initializer; \
|
|
struct _IO_fake_stdiobuf NAME = \
|
|
{{{ _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+_IO_UNBUFFERED+FLAGS, \
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, CHAIN, FD, \
|
|
0, 0, 0, 0, { 0 }, _IO_stdfile_##FD##_lock},\
|
|
&stdiobuf_vtable}, FILE}
|
|
#else
|
|
#define DEF_STDIOFILE(NAME, FD, FILE, FLAGS, CHAIN) \
|
|
struct _IO_fake_stdiobuf NAME = \
|
|
{{{ _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+_IO_UNBUFFERED+FLAGS, \
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, CHAIN, FD}, \
|
|
&stdiobuf_vtable}, FILE}
|
|
#endif
|
|
|
|
DEF_STDIOFILE(_IO_stdin_buf, 0, stdin, _IO_NO_WRITES, &_IO_stderr_.file);
|
|
DEF_STDIOFILE(_IO_stdout_buf, 1, stdout, _IO_NO_READS, &_IO_stdin_buf.s.file);
|
|
DEF_STDIOFILE(_IO_stderr_buf, 2, stderr, _IO_NO_READS, &_IO_stdout_buf.s.file);
|
|
|
|
_IO_FILE *_IO_list_all = &_IO_stderr_buf.s.file;
|
|
#endif /* !_STDIO_USES_IOSTREAM */
|