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40a55d20 UD |
1 | /* Copyright (C) 1991, 92, 93, 94, 95, 97 Free Software Foundation, Inc. |
2 | This file is part of the GNU IO Library. | |
3 | Written by Per Bothner <bothner@cygnus.com>. | |
4 | ||
5 | This library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU General Public License as | |
7 | published by the Free Software Foundation; either version 2, or (at | |
8 | your option) any later version. | |
9 | ||
10 | This library is distributed in the hope that it will be useful, but | |
11 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this library; see the file COPYING. If not, write to | |
17 | the Free Software Foundation, 59 Temple Place - Suite 330, Boston, | |
18 | MA 02111-1307, USA. | |
19 | ||
20 | As a special exception, if you link this library with files | |
21 | compiled with a GNU compiler to produce an executable, this does | |
22 | not cause the resulting executable to be covered by the GNU General | |
23 | Public License. This exception does not however invalidate any | |
24 | other reasons why the executable file might be covered by the GNU | |
25 | General Public License. */ | |
96aa2d94 RM |
26 | |
27 | #ifndef _IO_STDIO_H | |
28 | #define _IO_STDIO_H | |
29 | ||
30 | #include <_G_config.h> | |
31 | #define _IO_pos_t _G_fpos_t /* obsolete */ | |
32 | #define _IO_fpos_t _G_fpos_t | |
dfd2257a | 33 | #define _IO_fpos64_t _G_fpos64_t |
96aa2d94 RM |
34 | #define _IO_size_t _G_size_t |
35 | #define _IO_ssize_t _G_ssize_t | |
36 | #define _IO_off_t _G_off_t | |
dfd2257a | 37 | #define _IO_off64_t _G_off64_t |
96aa2d94 RM |
38 | #define _IO_pid_t _G_pid_t |
39 | #define _IO_uid_t _G_uid_t | |
40 | #define _IO_HAVE_SYS_WAIT _G_HAVE_SYS_WAIT | |
41 | #define _IO_HAVE_ST_BLKSIZE _G_HAVE_ST_BLKSIZE | |
42 | #define _IO_BUFSIZ _G_BUFSIZ | |
43 | #define _IO_va_list _G_va_list | |
44 | ||
45 | #ifdef _G_NEED_STDARG_H | |
46 | /* This define avoids name pollution if we're using GNU stdarg.h */ | |
40a55d20 UD |
47 | # define __need___va_list |
48 | # include <stdarg.h> | |
49 | # ifdef __GNUC_VA_LIST | |
50 | # undef _IO_va_list | |
51 | # define _IO_va_list __gnuc_va_list | |
52 | # endif /* __GNUC_VA_LIST */ | |
96aa2d94 RM |
53 | #endif |
54 | ||
55 | #ifndef __P | |
40a55d20 UD |
56 | # if _G_HAVE_SYS_CDEFS |
57 | # include <sys/cdefs.h> | |
58 | # else | |
59 | # ifdef __STDC__ | |
cc3fa755 | 60 | # define __P(p) p |
40a55d20 | 61 | # else |
cc3fa755 | 62 | # define __P(p) () |
40a55d20 UD |
63 | # endif |
64 | # endif | |
96aa2d94 RM |
65 | #endif /*!__P*/ |
66 | ||
67 | /* For backward compatibility */ | |
68 | #ifndef _PARAMS | |
40a55d20 | 69 | # define _PARAMS(protos) __P(protos) |
96aa2d94 RM |
70 | #endif /*!_PARAMS*/ |
71 | ||
72 | #ifndef __STDC__ | |
40a55d20 | 73 | # define const |
96aa2d94 RM |
74 | #endif |
75 | #define _IO_UNIFIED_JUMPTABLES 1 | |
2604afb1 UD |
76 | #ifndef _G_HAVE_PRINTF_FP |
77 | # define _IO_USE_DTOA 1 | |
78 | #endif | |
96aa2d94 | 79 | |
96aa2d94 | 80 | #ifndef EOF |
40a55d20 | 81 | # define EOF (-1) |
96aa2d94 RM |
82 | #endif |
83 | #ifndef NULL | |
40a55d20 | 84 | # if defined __GNUG__ && \ |
f8b87ef0 | 85 | (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8)) |
40a55d20 UD |
86 | # define NULL (__null) |
87 | # else | |
88 | # if !defined(__cplusplus) | |
89 | # define NULL ((void*)0) | |
90 | # else | |
91 | # define NULL (0) | |
92 | # endif | |
93 | # endif | |
f65fd747 | 94 | #endif |
96aa2d94 RM |
95 | |
96 | #define _IOS_INPUT 1 | |
97 | #define _IOS_OUTPUT 2 | |
98 | #define _IOS_ATEND 4 | |
99 | #define _IOS_APPEND 8 | |
100 | #define _IOS_TRUNC 16 | |
101 | #define _IOS_NOCREATE 32 | |
102 | #define _IOS_NOREPLACE 64 | |
103 | #define _IOS_BIN 128 | |
104 | ||
105 | /* Magic numbers and bits for the _flags field. | |
106 | The magic numbers use the high-order bits of _flags; | |
2c6fe0bd | 107 | the remaining bits are available for variable flags. |
96aa2d94 RM |
108 | Note: The magic numbers must all be negative if stdio |
109 | emulation is desired. */ | |
110 | ||
111 | #define _IO_MAGIC 0xFBAD0000 /* Magic number */ | |
112 | #define _OLD_STDIO_MAGIC 0xFABC0000 /* Emulate old stdio. */ | |
113 | #define _IO_MAGIC_MASK 0xFFFF0000 | |
114 | #define _IO_USER_BUF 1 /* User owns buffer; don't delete it on close. */ | |
115 | #define _IO_UNBUFFERED 2 | |
116 | #define _IO_NO_READS 4 /* Reading not allowed */ | |
117 | #define _IO_NO_WRITES 8 /* Writing not allowd */ | |
118 | #define _IO_EOF_SEEN 0x10 | |
119 | #define _IO_ERR_SEEN 0x20 | |
120 | #define _IO_DELETE_DONT_CLOSE 0x40 /* Don't call close(_fileno) on cleanup. */ | |
121 | #define _IO_LINKED 0x80 /* Set if linked (using _chain) to streambuf::_list_all.*/ | |
122 | #define _IO_IN_BACKUP 0x100 | |
123 | #define _IO_LINE_BUF 0x200 | |
124 | #define _IO_TIED_PUT_GET 0x400 /* Set if put and get pointer logicly tied. */ | |
125 | #define _IO_CURRENTLY_PUTTING 0x800 | |
126 | #define _IO_IS_APPENDING 0x1000 | |
127 | #define _IO_IS_FILEBUF 0x2000 | |
f671aeab | 128 | #define _IO_BAD_SEEN 0x4000 |
96aa2d94 RM |
129 | |
130 | /* These are "formatting flags" matching the iostream fmtflags enum values. */ | |
131 | #define _IO_SKIPWS 01 | |
132 | #define _IO_LEFT 02 | |
133 | #define _IO_RIGHT 04 | |
134 | #define _IO_INTERNAL 010 | |
135 | #define _IO_DEC 020 | |
136 | #define _IO_OCT 040 | |
137 | #define _IO_HEX 0100 | |
138 | #define _IO_SHOWBASE 0200 | |
139 | #define _IO_SHOWPOINT 0400 | |
140 | #define _IO_UPPERCASE 01000 | |
141 | #define _IO_SHOWPOS 02000 | |
142 | #define _IO_SCIENTIFIC 04000 | |
143 | #define _IO_FIXED 010000 | |
144 | #define _IO_UNITBUF 020000 | |
145 | #define _IO_STDIO 040000 | |
146 | #define _IO_DONT_CLOSE 0100000 | |
f671aeab | 147 | #define _IO_BOOLALPHA 0200000 |
96aa2d94 RM |
148 | |
149 | ||
150 | struct _IO_jump_t; struct _IO_FILE; | |
151 | ||
7c713e28 RM |
152 | /* Handle lock. */ |
153 | #ifdef _IO_MTSAFE_IO | |
a2b08ee5 UD |
154 | # if defined __GLIBC__ && __GLIBC__ >= 2 |
155 | # include <bits/stdio-lock.h> | |
156 | # else | |
157 | /*# include <comthread.h>*/ | |
158 | # endif | |
7c713e28 RM |
159 | #else |
160 | typedef void _IO_lock_t; | |
161 | #endif | |
96aa2d94 | 162 | |
96aa2d94 RM |
163 | |
164 | /* A streammarker remembers a position in a buffer. */ | |
165 | ||
166 | struct _IO_marker { | |
167 | struct _IO_marker *_next; | |
168 | struct _IO_FILE *_sbuf; | |
169 | /* If _pos >= 0 | |
170 | it points to _buf->Gbase()+_pos. FIXME comment */ | |
171 | /* if _pos < 0, it points to _buf->eBptr()+_pos. FIXME comment */ | |
172 | int _pos; | |
173 | #if 0 | |
174 | void set_streampos(streampos sp) { _spos = sp; } | |
175 | void set_offset(int offset) { _pos = offset; _spos = (streampos)(-2); } | |
176 | public: | |
177 | streammarker(streambuf *sb); | |
178 | ~streammarker(); | |
179 | int saving() { return _spos == -2; } | |
180 | int delta(streammarker&); | |
181 | int delta(); | |
182 | #endif | |
183 | }; | |
184 | ||
185 | struct _IO_FILE { | |
186 | int _flags; /* High-order word is _IO_MAGIC; rest is flags. */ | |
187 | #define _IO_file_flags _flags | |
188 | ||
189 | /* The following pointers correspond to the C++ streambuf protocol. */ | |
f65fd747 | 190 | /* Note: Tk uses the _IO_read_ptr and _IO_read_end fields directly. */ |
96aa2d94 RM |
191 | char* _IO_read_ptr; /* Current read pointer */ |
192 | char* _IO_read_end; /* End of get area. */ | |
193 | char* _IO_read_base; /* Start of putback+get area. */ | |
194 | char* _IO_write_base; /* Start of put area. */ | |
195 | char* _IO_write_ptr; /* Current put pointer. */ | |
196 | char* _IO_write_end; /* End of put area. */ | |
197 | char* _IO_buf_base; /* Start of reserve area. */ | |
198 | char* _IO_buf_end; /* End of reserve area. */ | |
199 | /* The following fields are used to support backing up and undo. */ | |
200 | char *_IO_save_base; /* Pointer to start of non-current get area. */ | |
201 | char *_IO_backup_base; /* Pointer to first valid character of backup area */ | |
202 | char *_IO_save_end; /* Pointer to end of non-current get area. */ | |
203 | ||
204 | struct _IO_marker *_markers; | |
205 | ||
206 | struct _IO_FILE *_chain; | |
207 | ||
96aa2d94 RM |
208 | int _fileno; |
209 | int _blksize; | |
1ea89a40 | 210 | _IO_off_t _old_offset; /* This used to be _offset but it's too small. */ |
96aa2d94 RM |
211 | |
212 | #define __HAVE_COLUMN /* temporary */ | |
213 | /* 1+column number of pbase(); 0 is unknown. */ | |
214 | unsigned short _cur_column; | |
bd355af0 | 215 | signed char _vtable_offset; |
96aa2d94 RM |
216 | char _shortbuf[1]; |
217 | ||
218 | /* char* _save_gptr; char* _save_egptr; */ | |
219 | ||
7c713e28 | 220 | _IO_lock_t *_lock; |
bd355af0 UD |
221 | #ifdef _IO_USE_OLD_IO_FILE |
222 | }; | |
223 | ||
224 | struct _IO_FILE_complete | |
225 | { | |
226 | struct _IO_FILE _file; | |
227 | #endif | |
228 | #if defined _G_IO_IO_FILE_VERSION && _G_IO_IO_FILE_VERSION == 0x20001 | |
229 | _IO_off64_t _offset; | |
230 | int _unused2[16]; /* Make sure we don't get into trouble again. */ | |
231 | #endif | |
96aa2d94 RM |
232 | }; |
233 | ||
234 | #ifndef __cplusplus | |
235 | typedef struct _IO_FILE _IO_FILE; | |
236 | #endif | |
237 | ||
bd355af0 UD |
238 | struct _IO_FILE_plus; |
239 | extern struct _IO_FILE_plus _IO_2_1_stdin_; | |
240 | extern struct _IO_FILE_plus _IO_2_1_stdout_; | |
241 | extern struct _IO_FILE_plus _IO_2_1_stderr_; | |
6973fc01 UD |
242 | #ifndef _LIBC |
243 | #define _IO_stdin ((_IO_FILE*)(&_IO_2_1_stdin_)) | |
244 | #define _IO_stdout ((_IO_FILE*)(&_IO_2_1_stdout_)) | |
245 | #define _IO_stderr ((_IO_FILE*)(&_IO_2_1_stderr_)) | |
246 | #else | |
247 | extern _IO_FILE *_IO_stdin; | |
248 | extern _IO_FILE *_IO_stdout; | |
249 | extern _IO_FILE *_IO_stderr; | |
250 | #endif | |
96aa2d94 | 251 | |
fa0bc87c | 252 | |
1228ed5c UD |
253 | /* Define the user-visible type, with user-friendly member names. */ |
254 | typedef struct | |
255 | { | |
256 | _IO_ssize_t (*read) __P ((struct _IO_FILE *, void *, _IO_ssize_t)); | |
257 | _IO_ssize_t (*write) __P ((struct _IO_FILE *, const void *, _IO_ssize_t)); | |
258 | _IO_fpos_t (*seek) __P ((struct _IO_FILE *, _IO_off_t, int)); | |
259 | int (*close) __P ((struct _IO_FILE *)); | |
260 | } _IO_cookie_io_functions_t; | |
261 | ||
fa0bc87c | 262 | /* Special file type for fopencookie function. */ |
40a55d20 UD |
263 | struct _IO_cookie_file |
264 | { | |
fa0bc87c RM |
265 | struct _IO_FILE file; |
266 | const void *vtable; | |
267 | void *cookie; | |
268 | _IO_cookie_io_functions_t io_functions; | |
269 | }; | |
270 | ||
271 | ||
96aa2d94 RM |
272 | #ifdef __cplusplus |
273 | extern "C" { | |
274 | #endif | |
275 | ||
40a55d20 UD |
276 | extern int __underflow __P ((_IO_FILE *)); |
277 | extern int __uflow __P ((_IO_FILE *)); | |
278 | extern int __overflow __P ((_IO_FILE *, int)); | |
96aa2d94 | 279 | |
7c713e28 | 280 | #define _IO_getc_unlocked(_fp) \ |
40a55d20 UD |
281 | ((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end ? __uflow (_fp) \ |
282 | : *(unsigned char *) (_fp)->_IO_read_ptr++) | |
7c713e28 | 283 | #define _IO_peekc_unlocked(_fp) \ |
96aa2d94 | 284 | ((_fp)->_IO_read_ptr >= (_fp)->_IO_read_end \ |
40a55d20 UD |
285 | && __underflow (_fp) == EOF ? EOF \ |
286 | : *(unsigned char *) (_fp)->_IO_read_ptr) | |
96aa2d94 | 287 | |
7c713e28 | 288 | #define _IO_putc_unlocked(_ch, _fp) \ |
96aa2d94 | 289 | (((_fp)->_IO_write_ptr >= (_fp)->_IO_write_end) \ |
40a55d20 UD |
290 | ? __overflow (_fp, (unsigned char) (_ch)) \ |
291 | : (unsigned char) (*(_fp)->_IO_write_ptr++ = (_ch))) | |
96aa2d94 | 292 | |
7c713e28 RM |
293 | #define _IO_feof_unlocked(__fp) (((__fp)->_flags & _IO_EOF_SEEN) != 0) |
294 | #define _IO_ferror_unlocked(__fp) (((__fp)->_flags & _IO_ERR_SEEN) != 0) | |
96aa2d94 | 295 | |
d41c6f61 UD |
296 | extern int _IO_getc __P ((_IO_FILE *__fp)); |
297 | extern int _IO_putc __P ((int __c, _IO_FILE *__fp)); | |
298 | extern int _IO_feof __P ((_IO_FILE *__fp)); | |
299 | extern int _IO_ferror __P ((_IO_FILE *__fp)); | |
300 | ||
301 | extern int _IO_peekc_locked __P ((_IO_FILE *__fp)); | |
302 | ||
96aa2d94 RM |
303 | /* This one is for Emacs. */ |
304 | #define _IO_PENDING_OUTPUT_COUNT(_fp) \ | |
305 | ((_fp)->_IO_write_ptr - (_fp)->_IO_write_base) | |
306 | ||
7c713e28 RM |
307 | extern void _IO_flockfile __P ((_IO_FILE *)); |
308 | extern void _IO_funlockfile __P ((_IO_FILE *)); | |
d41c6f61 | 309 | extern int _IO_ftrylockfile __P ((_IO_FILE *)); |
7c713e28 | 310 | |
a2b08ee5 UD |
311 | #ifdef _IO_MTSAFE_IO |
312 | # define _IO_peekc(_fp) _IO_peekc_locked (_fp) | |
313 | #else | |
314 | # define _IO_peekc(_fp) _IO_peekc_unlocked (_fp) | |
d41c6f61 UD |
315 | # define _IO_flockfile(_fp) /**/ |
316 | # define _IO_funlockfile(_fp) /**/ | |
317 | # define _IO_ftrylockfile(_fp) /**/ | |
68dbb3a6 UD |
318 | # define _IO_cleanup_region_start(_fct, _fp) /**/ |
319 | # define _IO_cleanup_region_end(_Doit) /**/ | |
edf5b2d7 | 320 | #endif /* !_IO_MTSAFE_IO */ |
7c713e28 | 321 | |
40a55d20 UD |
322 | extern int _IO_vfscanf __P ((_IO_FILE *, const char *, _IO_va_list, int *)); |
323 | extern int _IO_vfprintf __P ((_IO_FILE *, const char *, _IO_va_list)); | |
324 | extern _IO_ssize_t _IO_padn __P ((_IO_FILE *, int, _IO_ssize_t)); | |
325 | extern _IO_size_t _IO_sgetn __P ((_IO_FILE *, void *, _IO_size_t)); | |
96aa2d94 | 326 | |
dfd2257a UD |
327 | extern _IO_fpos64_t _IO_seekoff __P ((_IO_FILE *, _IO_off64_t, int, int)); |
328 | extern _IO_fpos64_t _IO_seekpos __P ((_IO_FILE *, _IO_fpos64_t, int)); | |
8a523922 | 329 | |
40a55d20 | 330 | extern void _IO_free_backup_area __P ((_IO_FILE *)); |
96aa2d94 RM |
331 | |
332 | #ifdef __cplusplus | |
333 | } | |
334 | #endif | |
335 | ||
336 | #endif /* _IO_STDIO_H */ |