338 lines
9.9 KiB
C++
338 lines
9.9 KiB
C++
/* Copyright (C) 1991, 92, 93, 94, 95, 97, 98 Free Software Foundation, Inc.
|
|
This file is part of the GNU IO Library.
|
|
Written by Per Bothner <bothner@cygnus.com>.
|
|
|
|
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. */
|
|
|
|
#ifndef _IO_STDIO_H
|
|
#define _IO_STDIO_H
|
|
|
|
#include <_G_config.h>
|
|
#define _IO_pos_t _G_fpos_t /* obsolete */
|
|
#define _IO_fpos_t _G_fpos_t
|
|
#define _IO_fpos64_t _G_fpos64_t
|
|
#define _IO_size_t _G_size_t
|
|
#define _IO_ssize_t _G_ssize_t
|
|
#define _IO_off_t _G_off_t
|
|
#define _IO_off64_t _G_off64_t
|
|
#define _IO_pid_t _G_pid_t
|
|
#define _IO_uid_t _G_uid_t
|
|
#define _IO_HAVE_SYS_WAIT _G_HAVE_SYS_WAIT
|
|
#define _IO_HAVE_ST_BLKSIZE _G_HAVE_ST_BLKSIZE
|
|
#define _IO_BUFSIZ _G_BUFSIZ
|
|
#define _IO_va_list _G_va_list
|
|
|
|
#ifdef _G_NEED_STDARG_H
|
|
/* This define avoids name pollution if we're using GNU stdarg.h */
|
|
# define __need___va_list
|
|
# include <stdarg.h>
|
|
# ifdef __GNUC_VA_LIST
|
|
# undef _IO_va_list
|
|
# define _IO_va_list __gnuc_va_list
|
|
# endif /* __GNUC_VA_LIST */
|
|
#endif
|
|
|
|
#ifndef __P
|
|
# if _G_HAVE_SYS_CDEFS
|
|
# include <sys/cdefs.h>
|
|
# else
|
|
# ifdef __STDC__
|
|
# define __P(p) p
|
|
# define __PMT(p) p
|
|
# else
|
|
# define __P(p) ()
|
|
# define __PMT(p) ()
|
|
# endif
|
|
# endif
|
|
#endif /*!__P*/
|
|
|
|
/* For backward compatibility */
|
|
#ifndef _PARAMS
|
|
# define _PARAMS(protos) __P(protos)
|
|
#endif /*!_PARAMS*/
|
|
|
|
#ifndef __STDC__
|
|
# define const
|
|
#endif
|
|
#define _IO_UNIFIED_JUMPTABLES 1
|
|
#ifndef _G_HAVE_PRINTF_FP
|
|
# define _IO_USE_DTOA 1
|
|
#endif
|
|
|
|
#ifndef EOF
|
|
# define EOF (-1)
|
|
#endif
|
|
#ifndef NULL
|
|
# if defined __GNUG__ && \
|
|
(__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8))
|
|
# define NULL (__null)
|
|
# else
|
|
# if !defined(__cplusplus)
|
|
# define NULL ((void*)0)
|
|
# else
|
|
# define NULL (0)
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#define _IOS_INPUT 1
|
|
#define _IOS_OUTPUT 2
|
|
#define _IOS_ATEND 4
|
|
#define _IOS_APPEND 8
|
|
#define _IOS_TRUNC 16
|
|
#define _IOS_NOCREATE 32
|
|
#define _IOS_NOREPLACE 64
|
|
#define _IOS_BIN 128
|
|
|
|
/* Magic numbers and bits for the _flags field.
|
|
The magic numbers use the high-order bits of _flags;
|
|
the remaining bits are available for variable flags.
|
|
Note: The magic numbers must all be negative if stdio
|
|
emulation is desired. */
|
|
|
|
#define _IO_MAGIC 0xFBAD0000 /* Magic number */
|
|
#define _OLD_STDIO_MAGIC 0xFABC0000 /* Emulate old stdio. */
|
|
#define _IO_MAGIC_MASK 0xFFFF0000
|
|
#define _IO_USER_BUF 1 /* User owns buffer; don't delete it on close. */
|
|
#define _IO_UNBUFFERED 2
|
|
#define _IO_NO_READS 4 /* Reading not allowed */
|
|
#define _IO_NO_WRITES 8 /* Writing not allowd */
|
|
#define _IO_EOF_SEEN 0x10
|
|
#define _IO_ERR_SEEN 0x20
|
|
#define _IO_DELETE_DONT_CLOSE 0x40 /* Don't call close(_fileno) on cleanup. */
|
|
#define _IO_LINKED 0x80 /* Set if linked (using _chain) to streambuf::_list_all.*/
|
|
#define _IO_IN_BACKUP 0x100
|
|
#define _IO_LINE_BUF 0x200
|
|
#define _IO_TIED_PUT_GET 0x400 /* Set if put and get pointer logicly tied. */
|
|
#define _IO_CURRENTLY_PUTTING 0x800
|
|
#define _IO_IS_APPENDING 0x1000
|
|
#define _IO_IS_FILEBUF 0x2000
|
|
#define _IO_BAD_SEEN 0x4000
|
|
|
|
/* These are "formatting flags" matching the iostream fmtflags enum values. */
|
|
#define _IO_SKIPWS 01
|
|
#define _IO_LEFT 02
|
|
#define _IO_RIGHT 04
|
|
#define _IO_INTERNAL 010
|
|
#define _IO_DEC 020
|
|
#define _IO_OCT 040
|
|
#define _IO_HEX 0100
|
|
#define _IO_SHOWBASE 0200
|
|
#define _IO_SHOWPOINT 0400
|
|
#define _IO_UPPERCASE 01000
|
|
#define _IO_SHOWPOS 02000
|
|
#define _IO_SCIENTIFIC 04000
|
|
#define _IO_FIXED 010000
|
|
#define _IO_UNITBUF 020000
|
|
#define _IO_STDIO 040000
|
|
#define _IO_DONT_CLOSE 0100000
|
|
#define _IO_BOOLALPHA 0200000
|
|
|
|
|
|
struct _IO_jump_t; struct _IO_FILE;
|
|
|
|
/* Handle lock. */
|
|
#ifdef _IO_MTSAFE_IO
|
|
# if defined __GLIBC__ && __GLIBC__ >= 2
|
|
# include <bits/stdio-lock.h>
|
|
# else
|
|
/*# include <comthread.h>*/
|
|
# endif
|
|
#else
|
|
typedef void _IO_lock_t;
|
|
#endif
|
|
|
|
|
|
/* A streammarker remembers a position in a buffer. */
|
|
|
|
struct _IO_marker {
|
|
struct _IO_marker *_next;
|
|
struct _IO_FILE *_sbuf;
|
|
/* If _pos >= 0
|
|
it points to _buf->Gbase()+_pos. FIXME comment */
|
|
/* if _pos < 0, it points to _buf->eBptr()+_pos. FIXME comment */
|
|
int _pos;
|
|
#if 0
|
|
void set_streampos(streampos sp) { _spos = sp; }
|
|
void set_offset(int offset) { _pos = offset; _spos = (streampos)(-2); }
|
|
public:
|
|
streammarker(streambuf *sb);
|
|
~streammarker();
|
|
int saving() { return _spos == -2; }
|
|
int delta(streammarker&);
|
|
int delta();
|
|
#endif
|
|
};
|
|
|
|
struct _IO_FILE {
|
|
int _flags; /* High-order word is _IO_MAGIC; rest is flags. */
|
|
#define _IO_file_flags _flags
|
|
|
|
/* The following pointers correspond to the C++ streambuf protocol. */
|
|
/* Note: Tk uses the _IO_read_ptr and _IO_read_end fields directly. */
|
|
char* _IO_read_ptr; /* Current read pointer */
|
|
char* _IO_read_end; /* End of get area. */
|
|
char* _IO_read_base; /* Start of putback+get area. */
|
|
char* _IO_write_base; /* Start of put area. */
|
|
char* _IO_write_ptr; /* Current put pointer. */
|
|
char* _IO_write_end; /* End of put area. */
|
|
char* _IO_buf_base; /* Start of reserve area. */
|
|
char* _IO_buf_end; /* End of reserve area. */
|
|
/* The following fields are used to support backing up and undo. */
|
|
char *_IO_save_base; /* Pointer to start of non-current get area. */
|
|
char *_IO_backup_base; /* Pointer to first valid character of backup area */
|
|
char *_IO_save_end; /* Pointer to end of non-current get area. */
|
|
|
|
struct _IO_marker *_markers;
|
|
|
|
struct _IO_FILE *_chain;
|
|
|
|
int _fileno;
|
|
int _blksize;
|
|
_IO_off_t _old_offset; /* This used to be _offset but it's too small. */
|
|
|
|
#define __HAVE_COLUMN /* temporary */
|
|
/* 1+column number of pbase(); 0 is unknown. */
|
|
unsigned short _cur_column;
|
|
signed char _vtable_offset;
|
|
char _shortbuf[1];
|
|
|
|
/* char* _save_gptr; char* _save_egptr; */
|
|
|
|
_IO_lock_t *_lock;
|
|
#ifdef _IO_USE_OLD_IO_FILE
|
|
};
|
|
|
|
struct _IO_FILE_complete
|
|
{
|
|
struct _IO_FILE _file;
|
|
#endif
|
|
#if defined _G_IO_IO_FILE_VERSION && _G_IO_IO_FILE_VERSION == 0x20001
|
|
_IO_off64_t _offset;
|
|
int _unused2[16]; /* Make sure we don't get into trouble again. */
|
|
#endif
|
|
};
|
|
|
|
#ifndef __cplusplus
|
|
typedef struct _IO_FILE _IO_FILE;
|
|
#endif
|
|
|
|
struct _IO_FILE_plus;
|
|
extern struct _IO_FILE_plus _IO_2_1_stdin_;
|
|
extern struct _IO_FILE_plus _IO_2_1_stdout_;
|
|
extern struct _IO_FILE_plus _IO_2_1_stderr_;
|
|
#ifndef _LIBC
|
|
#define _IO_stdin ((_IO_FILE*)(&_IO_2_1_stdin_))
|
|
#define _IO_stdout ((_IO_FILE*)(&_IO_2_1_stdout_))
|
|
#define _IO_stderr ((_IO_FILE*)(&_IO_2_1_stderr_))
|
|
#else
|
|
extern _IO_FILE *_IO_stdin;
|
|
extern _IO_FILE *_IO_stdout;
|
|
extern _IO_FILE *_IO_stderr;
|
|
#endif
|
|
|
|
|
|
/* Define the user-visible type, with user-friendly member names. */
|
|
typedef struct
|
|
{
|
|
_IO_ssize_t (*read) __PMT ((struct _IO_FILE *, void *, _IO_ssize_t));
|
|
_IO_ssize_t (*write) __PMT ((struct _IO_FILE *, const void *, _IO_ssize_t));
|
|
_IO_fpos_t (*seek) __PMT ((struct _IO_FILE *, _IO_off_t, int));
|
|
int (*close) __PMT ((struct _IO_FILE *));
|
|
} _IO_cookie_io_functions_t;
|
|
|
|
/* Special file type for fopencookie function. */
|
|
struct _IO_cookie_file
|
|
{
|
|
struct _IO_FILE file;
|
|
const void *vtable;
|
|
void *cookie;
|
|
_IO_cookie_io_functions_t io_functions;
|
|
};
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
extern int __underflow __P ((_IO_FILE *));
|
|
extern int __uflow __P ((_IO_FILE *));
|
|
extern int __overflow __P ((_IO_FILE *, int));
|
|
|
|
#define _IO_getc_unlocked(_fp) \
|
|
((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end ? __uflow (_fp) \
|
|
: *(unsigned char *) (_fp)->_IO_read_ptr++)
|
|
#define _IO_peekc_unlocked(_fp) \
|
|
((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end \
|
|
&& __underflow (_fp) == EOF ? EOF \
|
|
: *(unsigned char *) (_fp)->_IO_read_ptr)
|
|
#define _IO_putc_unlocked(_ch, _fp) \
|
|
(((_fp)->_IO_write_ptr >= (_fp)->_IO_write_end) \
|
|
? __overflow (_fp, (unsigned char) (_ch)) \
|
|
: (unsigned char) (*(_fp)->_IO_write_ptr++ = (_ch)))
|
|
|
|
#define _IO_feof_unlocked(__fp) (((__fp)->_flags & _IO_EOF_SEEN) != 0)
|
|
#define _IO_ferror_unlocked(__fp) (((__fp)->_flags & _IO_ERR_SEEN) != 0)
|
|
|
|
extern int _IO_getc __P ((_IO_FILE *__fp));
|
|
extern int _IO_putc __P ((int __c, _IO_FILE *__fp));
|
|
extern int _IO_feof __P ((_IO_FILE *__fp));
|
|
extern int _IO_ferror __P ((_IO_FILE *__fp));
|
|
|
|
extern int _IO_peekc_locked __P ((_IO_FILE *__fp));
|
|
|
|
/* This one is for Emacs. */
|
|
#define _IO_PENDING_OUTPUT_COUNT(_fp) \
|
|
((_fp)->_IO_write_ptr - (_fp)->_IO_write_base)
|
|
|
|
extern void _IO_flockfile __P ((_IO_FILE *));
|
|
extern void _IO_funlockfile __P ((_IO_FILE *));
|
|
extern int _IO_ftrylockfile __P ((_IO_FILE *));
|
|
|
|
#ifdef _IO_MTSAFE_IO
|
|
# define _IO_peekc(_fp) _IO_peekc_locked (_fp)
|
|
#else
|
|
# define _IO_peekc(_fp) _IO_peekc_unlocked (_fp)
|
|
# define _IO_flockfile(_fp) /**/
|
|
# define _IO_funlockfile(_fp) /**/
|
|
# define _IO_ftrylockfile(_fp) /**/
|
|
# define _IO_cleanup_region_start(_fct, _fp) /**/
|
|
# define _IO_cleanup_region_end(_Doit) /**/
|
|
#endif /* !_IO_MTSAFE_IO */
|
|
|
|
extern int _IO_vfscanf __P ((_IO_FILE *, const char *, _IO_va_list, int *));
|
|
extern int _IO_vfprintf __P ((_IO_FILE *, const char *, _IO_va_list));
|
|
extern _IO_ssize_t _IO_padn __P ((_IO_FILE *, int, _IO_ssize_t));
|
|
extern _IO_size_t _IO_sgetn __P ((_IO_FILE *, void *, _IO_size_t));
|
|
|
|
extern _IO_fpos64_t _IO_seekoff __P ((_IO_FILE *, _IO_off64_t, int, int));
|
|
extern _IO_fpos64_t _IO_seekpos __P ((_IO_FILE *, _IO_fpos64_t, int));
|
|
|
|
extern void _IO_free_backup_area __P ((_IO_FILE *));
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _IO_STDIO_H */
|