259 lines
7.6 KiB
C
259 lines
7.6 KiB
C
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/* Copyright (C) 1991,92,93,94,95,97,98,99,2000,2001 Free Software Foundation, Inc.
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This file is part of the GNU IO Library.
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Written by Per Bothner <bothner@cygnus.com>.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2, or (at
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your option) any later version.
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This library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this library; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA.
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As a special exception, if you link this library with files
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compiled with a GNU compiler to produce an executable, this does
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not cause the resulting executable to be covered by the GNU General
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Public License. This exception does not however invalidate any
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other reasons why the executable file might be covered by the GNU
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General Public License.
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*/
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#ifndef _IO_STDIO_H_
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#define _IO_STDIO_H_
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#include <sys/types.h>
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#include <stdarg.h>
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#ifndef EOF
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# define EOF -1
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#endif
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#define _IO_pos_t off_t /* obsolete */
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#define _IO_fpos_t off_t
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#define _IO_fpos64_t off_t
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#define _IO_size_t size_t
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#define _IO_ssize_t ssize_t
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#define _IO_off_t off_t
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#define _IO_off64_t off_t
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#define _IO_pid_t pid_t
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#define _IO_uid_t uid_t
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#define _IO_HAVE_SYS_WAIT _G_HAVE_SYS_WAIT
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#define _IO_HAVE_ST_BLKSIZE _G_HAVE_ST_BLKSIZE
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#define _IO_BUFSIZ BUFSIZ
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#define _IO_va_list va_list
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#define _IOS_INPUT 1
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#define _IOS_OUTPUT 2
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#define _IOS_ATEND 4
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#define _IOS_APPEND 8
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#define _IOS_TRUNC 16
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#define _IOS_NOCREATE 32
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#define _IOS_NOREPLACE 64
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#define _IOS_BIN 128
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/* Magic numbers and bits for the _flags field.
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The magic numbers use the high-order bits of _flags;
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the remaining bits are available for variable flags.
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Note: The magic numbers must all be negative if stdio
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emulation is desired. */
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#define _IO_MAGIC 0xFBAD0000 /* Magic number */
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#define _OLD_STDIO_MAGIC 0xFABC0000 /* Emulate old stdio. */
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#define _IO_MAGIC_MASK 0xFFFF0000
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#define _IO_USER_BUF 1 /* User owns buffer; don't delete it on close. */
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#define _IO_UNBUFFERED 2
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#define _IO_NO_READS 4 /* Reading not allowed */
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#define _IO_NO_WRITES 8 /* Writing not allowd */
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#define _IO_EOF_SEEN 0x10
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#define _IO_ERR_SEEN 0x20
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#define _IO_DELETE_DONT_CLOSE 0x40 /* Don't call close(_fileno) on cleanup. */
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#define _IO_LINKED 0x80 /* Set if linked (using _chain) to streambuf::_list_all.*/
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#define _IO_IN_BACKUP 0x100
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#define _IO_LINE_BUF 0x200
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#define _IO_TIED_PUT_GET 0x400 /* Set if put and get pointer logicly tied. */
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#define _IO_CURRENTLY_PUTTING 0x800
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#define _IO_IS_APPENDING 0x1000
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#define _IO_IS_FILEBUF 0x2000
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#define _IO_BAD_SEEN 0x4000
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/* These are "formatting flags" matching the iostream fmtflags enum values. */
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#define _IO_SKIPWS 01
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#define _IO_LEFT 02
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#define _IO_RIGHT 04
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#define _IO_INTERNAL 010
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#define _IO_DEC 020
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#define _IO_OCT 040
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#define _IO_HEX 0100
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#define _IO_SHOWBASE 0200
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#define _IO_SHOWPOINT 0400
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#define _IO_UPPERCASE 01000
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#define _IO_SHOWPOS 02000
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#define _IO_SCIENTIFIC 04000
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#define _IO_FIXED 010000
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#define _IO_UNITBUF 020000
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#define _IO_STDIO 040000
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#define _IO_DONT_CLOSE 0100000
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#define _IO_BOOLALPHA 0200000
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struct _IO_marker;
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struct _IO_codecvt;
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struct _IO_wide_data;
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typedef void _IO_lock_t;
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struct _IO_marker {
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struct _IO_marker *_next;
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struct _IO_FILE *_sbuf;
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int _pos;
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};
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typedef struct _IO_FILE {
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int _flags; /* High-order word is _IO_MAGIC; rest is flags. */
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# define _IO_file_flags _flags
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/* The following pointers correspond to the C++ streambuf protocol. */
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/* Note: Tk uses the _IO_read_ptr and _IO_read_end fields directly. */
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char *_IO_read_ptr; /* Current read pointer */
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char *_IO_read_end; /* End of get area. */
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char *_IO_read_base; /* Start of putback+get area. */
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char *_IO_write_base; /* Start of put area. */
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char *_IO_write_ptr; /* Current put pointer. */
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char *_IO_write_end; /* End of put area. */
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char *_IO_buf_base; /* Start of reserve area. */
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char *_IO_buf_end; /* End of reserve area. */
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/* The following fields are used to support backing up and undo. */
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char *_IO_save_base; /* Pointer to start of non-current get area. */
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char *_IO_backup_base; /* Pointer to first valid character of backup area */
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char *_IO_save_end; /* Pointer to end of non-current get area. */
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struct _IO_marker *_markers;
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struct _IO_FILE *_chain;
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int _fileno;
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// int _blksize;
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int _flags2;
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off_t _old_offset; /* This used to be _offset but it's too small. */
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/* -> not true on BeOS, but who cares */
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/* 1+column number of pbase(); 0 is unknown. */
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unsigned short _cur_column;
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signed char _vtable_offset;
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char _shortbuf[1];
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_IO_lock_t *_lock;
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off_t _offset;
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//#if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
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/* Wide character stream stuff. */
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struct _IO_codecvt *_codecvt;
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struct _IO_wide_data *_wide_data;
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//#else
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// void *__pad1;
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// void *__pad2;
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//#endif
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int _mode;
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/* Make sure we don't get into trouble again. */
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char _unused2[15 * sizeof (int) - 2 * sizeof (void *)];
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} _IO_FILE;
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern int _IO_feof(_IO_FILE *stream);
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extern int _IO_feof_unlocked(_IO_FILE *stream);
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extern int _IO_ferror(_IO_FILE *stream);
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extern int _IO_ferror_unlocked(_IO_FILE *stream);
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extern int _IO_putc(int c, _IO_FILE *stream);
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extern int _IO_putc_unlocked(int c, _IO_FILE *stream);
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extern int _IO_getc(_IO_FILE *stream);
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extern int _IO_getc_unlocked(_IO_FILE *stream);
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extern int _IO_peekc_unlocked(_IO_FILE *stream);
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extern int __underflow(_IO_FILE *stream);
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extern int __uflow(_IO_FILE *stream);
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extern int __overflow(_IO_FILE *stream, int c);
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extern int _IO_peekc_locked(_IO_FILE *stream);
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/* This one is for Emacs. */
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#define _IO_PENDING_OUTPUT_COUNT(_fp) \
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((_fp)->_IO_write_ptr - (_fp)->_IO_write_base)
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extern void _IO_flockfile(_IO_FILE *);
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extern void _IO_funlockfile(_IO_FILE *);
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extern int _IO_ftrylockfile(_IO_FILE *);
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#ifdef _IO_MTSAFE_IO
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# define _IO_peekc(_fp) _IO_peekc_locked (_fp)
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#else
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# define _IO_peekc(_fp) _IO_peekc_unlocked (_fp)
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# define _IO_flockfile(_fp) /**/
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# define _IO_funlockfile(_fp) /**/
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# define _IO_ftrylockfile(_fp) /**/
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# define _IO_cleanup_region_start(_fct, _fp) /**/
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# define _IO_cleanup_region_end(_Doit) /**/
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#endif /* !_IO_MTSAFE_IO */
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extern int _IO_vfscanf(_IO_FILE *, const char *, va_list, int *);
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extern int _IO_vfprintf(_IO_FILE *, const char *, va_list);
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extern _IO_ssize_t _IO_padn(_IO_FILE *, int, _IO_ssize_t);
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extern _IO_size_t _IO_sgetn(_IO_FILE *, void *, _IO_size_t);
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extern _IO_fpos64_t _IO_seekoff(_IO_FILE *, _IO_off64_t, int, int);
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extern _IO_fpos64_t _IO_seekpos(_IO_FILE *, _IO_fpos64_t, int);
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extern void _IO_free_backup_area(_IO_FILE *);
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#ifdef __cplusplus
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# define __INLINE inline
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#else
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# define __INLINE extern __inline
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#endif
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__INLINE int
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_IO_getc_unlocked(_IO_FILE *stream)
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{
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if (stream->_IO_read_ptr >= stream->_IO_read_end)
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return __uflow(stream);
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return *(unsigned char *)stream->_IO_read_ptr++;
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}
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__INLINE int
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_IO_peekc_unlocked(_IO_FILE *stream)
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{
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if (stream->_IO_read_ptr >= stream->_IO_read_end && __underflow(stream) == EOF)
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return EOF;
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return *(unsigned char *)stream->_IO_read_ptr;
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}
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__INLINE int
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_IO_putc_unlocked(int c, _IO_FILE *stream)
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{
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if (stream->_IO_write_ptr >= stream->_IO_write_end)
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return __overflow(stream, (unsigned char)c);
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return (unsigned char)(*stream->_IO_write_ptr++ = c);
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}
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#undef __INLINE
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#ifdef __cplusplus
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}
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#endif
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#endif /* _IO_STDIO_H_ */
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