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9202ffe3 | 1 | /* Copyright (C) 1993, 1995, 1997-1999, 2000 Free Software Foundation, Inc. |
40a55d20 UD |
2 | This file is part of the GNU IO Library. |
3 | ||
4 | This library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU General Public License as | |
6 | published by the Free Software Foundation; either version 2, or (at | |
7 | your option) any later version. | |
8 | ||
9 | This library is distributed in the hope that it will be useful, but | |
10 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU General Public License | |
15 | along with this library; see the file COPYING. If not, write to | |
16 | the Free Software Foundation, 59 Temple Place - Suite 330, Boston, | |
17 | MA 02111-1307, USA. | |
18 | ||
19 | As a special exception, if you link this library with files | |
20 | compiled with a GNU compiler to produce an executable, this does | |
21 | not cause the resulting executable to be covered by the GNU General | |
22 | Public License. This exception does not however invalidate any | |
23 | other reasons why the executable file might be covered by the GNU | |
24 | General Public License. */ | |
96aa2d94 RM |
25 | |
26 | /* Generic or default I/O operations. */ | |
27 | ||
28 | #include "libioP.h" | |
29 | #ifdef __STDC__ | |
30 | #include <stdlib.h> | |
31 | #endif | |
32 | #include <string.h> | |
33 | ||
51e176c2 | 34 | #ifdef _IO_MTSAFE_IO |
118bad87 | 35 | static _IO_lock_t list_all_lock = _IO_lock_initializer; |
51e176c2 | 36 | #endif |
118bad87 | 37 | |
96aa2d94 | 38 | void |
40a55d20 | 39 | _IO_un_link (fp) |
2ca8b1ee | 40 | struct _IO_FILE_plus *fp; |
40a55d20 | 41 | { |
2ca8b1ee | 42 | if (fp->file._flags & _IO_LINKED) |
40a55d20 | 43 | { |
2ca8b1ee | 44 | struct _IO_FILE_plus **f; |
d328b80b | 45 | #ifdef _IO_MTSAFE_IO |
118bad87 | 46 | _IO_lock_lock (list_all_lock); |
51e176c2 | 47 | #endif |
2ca8b1ee | 48 | for (f = &_IO_list_all; *f != NULL; f = &(*f)->file._chain) |
40a55d20 UD |
49 | { |
50 | if (*f == fp) | |
51 | { | |
2ca8b1ee | 52 | *f = fp->file._chain; |
40a55d20 UD |
53 | break; |
54 | } | |
55 | } | |
51e176c2 | 56 | #ifdef _IO_MTSAFE_IO |
118bad87 | 57 | _IO_lock_unlock (list_all_lock); |
51e176c2 | 58 | #endif |
2ca8b1ee | 59 | fp->file._flags &= ~_IO_LINKED; |
96aa2d94 | 60 | } |
96aa2d94 RM |
61 | } |
62 | ||
63 | void | |
40a55d20 | 64 | _IO_link_in (fp) |
2ca8b1ee | 65 | struct _IO_FILE_plus *fp; |
96aa2d94 | 66 | { |
2ca8b1ee | 67 | if ((fp->file._flags & _IO_LINKED) == 0) |
40a55d20 | 68 | { |
2ca8b1ee | 69 | fp->file._flags |= _IO_LINKED; |
51e176c2 | 70 | #ifdef _IO_MTSAFE_IO |
118bad87 | 71 | _IO_lock_lock (list_all_lock); |
51e176c2 | 72 | #endif |
2ca8b1ee | 73 | fp->file._chain = _IO_list_all; |
96aa2d94 | 74 | _IO_list_all = fp; |
51e176c2 | 75 | #ifdef _IO_MTSAFE_IO |
118bad87 | 76 | _IO_lock_unlock (list_all_lock); |
51e176c2 | 77 | #endif |
40a55d20 | 78 | } |
96aa2d94 RM |
79 | } |
80 | ||
81 | /* Return minimum _pos markers | |
82 | Assumes the current get area is the main get area. */ | |
d64b6ad0 | 83 | _IO_ssize_t _IO_least_marker __P ((_IO_FILE *fp, char *end_p)); |
96aa2d94 | 84 | |
d64b6ad0 | 85 | _IO_ssize_t |
05f732b3 | 86 | _IO_least_marker (fp, end_p) |
40a55d20 | 87 | _IO_FILE *fp; |
05f732b3 | 88 | char *end_p; |
96aa2d94 | 89 | { |
05f732b3 | 90 | _IO_ssize_t least_so_far = end_p - fp->_IO_read_base; |
40a55d20 | 91 | struct _IO_marker *mark; |
96aa2d94 RM |
92 | for (mark = fp->_markers; mark != NULL; mark = mark->_next) |
93 | if (mark->_pos < least_so_far) | |
94 | least_so_far = mark->_pos; | |
95 | return least_so_far; | |
96 | } | |
97 | ||
98 | /* Switch current get area from backup buffer to (start of) main get area. */ | |
99 | ||
100 | void | |
40a55d20 UD |
101 | _IO_switch_to_main_get_area (fp) |
102 | _IO_FILE *fp; | |
96aa2d94 RM |
103 | { |
104 | char *tmp; | |
105 | fp->_flags &= ~_IO_IN_BACKUP; | |
106 | /* Swap _IO_read_end and _IO_save_end. */ | |
40a55d20 UD |
107 | tmp = fp->_IO_read_end; |
108 | fp->_IO_read_end = fp->_IO_save_end; | |
109 | fp->_IO_save_end= tmp; | |
96aa2d94 | 110 | /* Swap _IO_read_base and _IO_save_base. */ |
40a55d20 UD |
111 | tmp = fp->_IO_read_base; |
112 | fp->_IO_read_base = fp->_IO_save_base; | |
113 | fp->_IO_save_base = tmp; | |
05f732b3 UD |
114 | /* Set _IO_read_ptr. */ |
115 | fp->_IO_read_ptr = fp->_IO_read_base; | |
96aa2d94 RM |
116 | } |
117 | ||
118 | /* Switch current get area from main get area to (end of) backup area. */ | |
119 | ||
120 | void | |
40a55d20 UD |
121 | _IO_switch_to_backup_area (fp) |
122 | _IO_FILE *fp; | |
96aa2d94 RM |
123 | { |
124 | char *tmp; | |
125 | fp->_flags |= _IO_IN_BACKUP; | |
126 | /* Swap _IO_read_end and _IO_save_end. */ | |
40a55d20 UD |
127 | tmp = fp->_IO_read_end; |
128 | fp->_IO_read_end = fp->_IO_save_end; | |
129 | fp->_IO_save_end = tmp; | |
05f732b3 | 130 | /* Swap _IO_read_base and _IO_save_base. */ |
40a55d20 UD |
131 | tmp = fp->_IO_read_base; |
132 | fp->_IO_read_base = fp->_IO_save_base; | |
133 | fp->_IO_save_base = tmp; | |
05f732b3 | 134 | /* Set _IO_read_ptr. */ |
96aa2d94 RM |
135 | fp->_IO_read_ptr = fp->_IO_read_end; |
136 | } | |
137 | ||
138 | int | |
40a55d20 UD |
139 | _IO_switch_to_get_mode (fp) |
140 | _IO_FILE *fp; | |
96aa2d94 RM |
141 | { |
142 | if (fp->_IO_write_ptr > fp->_IO_write_base) | |
143 | if (_IO_OVERFLOW (fp, EOF) == EOF) | |
144 | return EOF; | |
40a55d20 | 145 | if (_IO_in_backup (fp)) |
96aa2d94 RM |
146 | fp->_IO_read_base = fp->_IO_backup_base; |
147 | else | |
148 | { | |
149 | fp->_IO_read_base = fp->_IO_buf_base; | |
150 | if (fp->_IO_write_ptr > fp->_IO_read_end) | |
151 | fp->_IO_read_end = fp->_IO_write_ptr; | |
152 | } | |
153 | fp->_IO_read_ptr = fp->_IO_write_ptr; | |
154 | ||
155 | fp->_IO_write_base = fp->_IO_write_ptr = fp->_IO_write_end = fp->_IO_read_ptr; | |
156 | ||
157 | fp->_flags &= ~_IO_CURRENTLY_PUTTING; | |
158 | return 0; | |
159 | } | |
160 | ||
161 | void | |
40a55d20 UD |
162 | _IO_free_backup_area (fp) |
163 | _IO_FILE *fp; | |
96aa2d94 RM |
164 | { |
165 | if (_IO_in_backup (fp)) | |
40a55d20 | 166 | _IO_switch_to_main_get_area (fp); /* Just in case. */ |
96aa2d94 RM |
167 | free (fp->_IO_save_base); |
168 | fp->_IO_save_base = NULL; | |
169 | fp->_IO_save_end = NULL; | |
170 | fp->_IO_backup_base = NULL; | |
171 | } | |
172 | ||
173 | #if 0 | |
174 | int | |
40a55d20 UD |
175 | _IO_switch_to_put_mode (fp) |
176 | _IO_FILE *fp; | |
96aa2d94 RM |
177 | { |
178 | fp->_IO_write_base = fp->_IO_read_ptr; | |
179 | fp->_IO_write_ptr = fp->_IO_read_ptr; | |
180 | /* Following is wrong if line- or un-buffered? */ | |
40a55d20 UD |
181 | fp->_IO_write_end = (fp->_flags & _IO_IN_BACKUP |
182 | ? fp->_IO_read_end : fp->_IO_buf_end); | |
96aa2d94 RM |
183 | |
184 | fp->_IO_read_ptr = fp->_IO_read_end; | |
185 | fp->_IO_read_base = fp->_IO_read_end; | |
186 | ||
187 | fp->_flags |= _IO_CURRENTLY_PUTTING; | |
188 | return 0; | |
189 | } | |
190 | #endif | |
191 | ||
192 | int | |
40a55d20 UD |
193 | __overflow (f, ch) |
194 | _IO_FILE *f; | |
195 | int ch; | |
96aa2d94 RM |
196 | { |
197 | return _IO_OVERFLOW (f, ch); | |
198 | } | |
199 | ||
05f732b3 | 200 | static int save_for_backup __P ((_IO_FILE *fp, char *end_p)) |
dfd2257a UD |
201 | #ifdef _LIBC |
202 | internal_function | |
203 | #endif | |
204 | ; | |
40a55d20 | 205 | |
05f732b3 | 206 | static int |
dfd2257a | 207 | #ifdef _LIBC |
05f732b3 | 208 | internal_function |
dfd2257a | 209 | #endif |
05f732b3 | 210 | save_for_backup (fp, end_p) |
40a55d20 | 211 | _IO_FILE *fp; |
05f732b3 | 212 | char *end_p; |
96aa2d94 | 213 | { |
05f732b3 UD |
214 | /* Append [_IO_read_base..end_p] to backup area. */ |
215 | _IO_ssize_t least_mark = _IO_least_marker (fp, end_p); | |
96aa2d94 | 216 | /* needed_size is how much space we need in the backup area. */ |
05f732b3 UD |
217 | _IO_size_t needed_size = (end_p - fp->_IO_read_base) - least_mark; |
218 | /* FIXME: Dubious arithmetic if pointers are NULL */ | |
219 | _IO_size_t current_Bsize = fp->_IO_save_end - fp->_IO_save_base; | |
220 | _IO_size_t avail; /* Extra space available for future expansion. */ | |
221 | _IO_ssize_t delta; | |
96aa2d94 RM |
222 | struct _IO_marker *mark; |
223 | if (needed_size > current_Bsize) | |
224 | { | |
225 | char *new_buffer; | |
226 | avail = 100; | |
40a55d20 | 227 | new_buffer = (char *) malloc (avail + needed_size); |
96aa2d94 RM |
228 | if (new_buffer == NULL) |
229 | return EOF; /* FIXME */ | |
230 | if (least_mark < 0) | |
231 | { | |
86187531 UD |
232 | #ifdef _LIBC |
233 | __mempcpy (__mempcpy (new_buffer + avail, | |
234 | fp->_IO_save_end + least_mark, | |
235 | -least_mark), | |
236 | fp->_IO_read_base, | |
05f732b3 | 237 | end_p - fp->_IO_read_base); |
86187531 | 238 | #else |
40a55d20 UD |
239 | memcpy (new_buffer + avail, |
240 | fp->_IO_save_end + least_mark, | |
241 | -least_mark); | |
242 | memcpy (new_buffer + avail - least_mark, | |
243 | fp->_IO_read_base, | |
05f732b3 | 244 | end_p - fp->_IO_read_base); |
86187531 | 245 | #endif |
96aa2d94 RM |
246 | } |
247 | else | |
40a55d20 UD |
248 | memcpy (new_buffer + avail, |
249 | fp->_IO_read_base + least_mark, | |
250 | needed_size); | |
96aa2d94 RM |
251 | if (fp->_IO_save_base) |
252 | free (fp->_IO_save_base); | |
253 | fp->_IO_save_base = new_buffer; | |
254 | fp->_IO_save_end = new_buffer + avail + needed_size; | |
255 | } | |
256 | else | |
257 | { | |
258 | avail = current_Bsize - needed_size; | |
259 | if (least_mark < 0) | |
260 | { | |
40a55d20 UD |
261 | memmove (fp->_IO_save_base + avail, |
262 | fp->_IO_save_end + least_mark, | |
263 | -least_mark); | |
264 | memcpy (fp->_IO_save_base + avail - least_mark, | |
265 | fp->_IO_read_base, | |
05f732b3 | 266 | end_p - fp->_IO_read_base); |
96aa2d94 RM |
267 | } |
268 | else if (needed_size > 0) | |
40a55d20 UD |
269 | memcpy (fp->_IO_save_base + avail, |
270 | fp->_IO_read_base + least_mark, | |
271 | needed_size); | |
96aa2d94 | 272 | } |
96aa2d94 RM |
273 | fp->_IO_backup_base = fp->_IO_save_base + avail; |
274 | /* Adjust all the streammarkers. */ | |
05f732b3 | 275 | delta = end_p - fp->_IO_read_base; |
96aa2d94 RM |
276 | for (mark = fp->_markers; mark != NULL; mark = mark->_next) |
277 | mark->_pos -= delta; | |
278 | return 0; | |
279 | } | |
280 | ||
281 | int | |
40a55d20 UD |
282 | __underflow (fp) |
283 | _IO_FILE *fp; | |
96aa2d94 | 284 | { |
c9eaa8b9 | 285 | if (fp->_vtable_offset == 0 && _IO_fwide (fp, -1) != -1) |
d64b6ad0 UD |
286 | return EOF; |
287 | ||
40a55d20 UD |
288 | if (_IO_in_put_mode (fp)) |
289 | if (_IO_switch_to_get_mode (fp) == EOF) | |
290 | return EOF; | |
96aa2d94 | 291 | if (fp->_IO_read_ptr < fp->_IO_read_end) |
40a55d20 UD |
292 | return *(unsigned char *) fp->_IO_read_ptr; |
293 | if (_IO_in_backup (fp)) | |
96aa2d94 | 294 | { |
40a55d20 | 295 | _IO_switch_to_main_get_area (fp); |
96aa2d94 | 296 | if (fp->_IO_read_ptr < fp->_IO_read_end) |
31f7410f | 297 | return *(unsigned char *) fp->_IO_read_ptr; |
96aa2d94 | 298 | } |
40a55d20 | 299 | if (_IO_have_markers (fp)) |
96aa2d94 | 300 | { |
05f732b3 | 301 | if (save_for_backup (fp, fp->_IO_read_end)) |
96aa2d94 RM |
302 | return EOF; |
303 | } | |
40a55d20 UD |
304 | else if (_IO_have_backup (fp)) |
305 | _IO_free_backup_area (fp); | |
96aa2d94 RM |
306 | return _IO_UNDERFLOW (fp); |
307 | } | |
308 | ||
309 | int | |
40a55d20 UD |
310 | __uflow (fp) |
311 | _IO_FILE *fp; | |
96aa2d94 | 312 | { |
c9eaa8b9 | 313 | if (fp->_vtable_offset == 0 && _IO_fwide (fp, -1) != -1) |
d64b6ad0 UD |
314 | return EOF; |
315 | ||
40a55d20 UD |
316 | if (_IO_in_put_mode (fp)) |
317 | if (_IO_switch_to_get_mode (fp) == EOF) | |
318 | return EOF; | |
96aa2d94 | 319 | if (fp->_IO_read_ptr < fp->_IO_read_end) |
40a55d20 UD |
320 | return *(unsigned char *) fp->_IO_read_ptr++; |
321 | if (_IO_in_backup (fp)) | |
96aa2d94 | 322 | { |
40a55d20 | 323 | _IO_switch_to_main_get_area (fp); |
96aa2d94 | 324 | if (fp->_IO_read_ptr < fp->_IO_read_end) |
31f7410f | 325 | return *(unsigned char *) fp->_IO_read_ptr++; |
96aa2d94 | 326 | } |
40a55d20 | 327 | if (_IO_have_markers (fp)) |
96aa2d94 | 328 | { |
05f732b3 | 329 | if (save_for_backup (fp, fp->_IO_read_end)) |
96aa2d94 RM |
330 | return EOF; |
331 | } | |
40a55d20 UD |
332 | else if (_IO_have_backup (fp)) |
333 | _IO_free_backup_area (fp); | |
96aa2d94 RM |
334 | return _IO_UFLOW (fp); |
335 | } | |
336 | ||
337 | void | |
40a55d20 UD |
338 | _IO_setb (f, b, eb, a) |
339 | _IO_FILE *f; | |
340 | char *b; | |
341 | char *eb; | |
342 | int a; | |
96aa2d94 RM |
343 | { |
344 | if (f->_IO_buf_base && !(f->_flags & _IO_USER_BUF)) | |
40a55d20 | 345 | FREE_BUF (f->_IO_buf_base, _IO_blen (f)); |
96aa2d94 RM |
346 | f->_IO_buf_base = b; |
347 | f->_IO_buf_end = eb; | |
348 | if (a) | |
349 | f->_flags &= ~_IO_USER_BUF; | |
350 | else | |
351 | f->_flags |= _IO_USER_BUF; | |
352 | } | |
353 | ||
354 | void | |
40a55d20 UD |
355 | _IO_doallocbuf (fp) |
356 | _IO_FILE *fp; | |
96aa2d94 RM |
357 | { |
358 | if (fp->_IO_buf_base) | |
359 | return; | |
360 | if (!(fp->_flags & _IO_UNBUFFERED)) | |
361 | if (_IO_DOALLOCATE (fp) != EOF) | |
362 | return; | |
40a55d20 | 363 | _IO_setb (fp, fp->_shortbuf, fp->_shortbuf+1, 0); |
96aa2d94 RM |
364 | } |
365 | ||
366 | int | |
40a55d20 UD |
367 | _IO_default_underflow (fp) |
368 | _IO_FILE *fp; | |
96aa2d94 RM |
369 | { |
370 | return EOF; | |
371 | } | |
372 | ||
373 | int | |
40a55d20 UD |
374 | _IO_default_uflow (fp) |
375 | _IO_FILE *fp; | |
96aa2d94 RM |
376 | { |
377 | int ch = _IO_UNDERFLOW (fp); | |
378 | if (ch == EOF) | |
379 | return EOF; | |
40a55d20 | 380 | return *(unsigned char *) fp->_IO_read_ptr++; |
96aa2d94 RM |
381 | } |
382 | ||
383 | _IO_size_t | |
40a55d20 UD |
384 | _IO_default_xsputn (f, data, n) |
385 | _IO_FILE *f; | |
386 | const void *data; | |
387 | _IO_size_t n; | |
96aa2d94 | 388 | { |
40a55d20 UD |
389 | const char *s = (char *) data; |
390 | _IO_size_t more = n; | |
96aa2d94 RM |
391 | if (more <= 0) |
392 | return 0; | |
393 | for (;;) | |
394 | { | |
40a55d20 UD |
395 | /* Space available. */ |
396 | _IO_ssize_t count = f->_IO_write_end - f->_IO_write_ptr; | |
96aa2d94 RM |
397 | if (count > 0) |
398 | { | |
a68b0d31 | 399 | if ((_IO_size_t) count > more) |
96aa2d94 RM |
400 | count = more; |
401 | if (count > 20) | |
402 | { | |
86187531 UD |
403 | #ifdef _LIBC |
404 | f->_IO_write_ptr = __mempcpy (f->_IO_write_ptr, s, count); | |
405 | #else | |
40a55d20 | 406 | memcpy (f->_IO_write_ptr, s, count); |
96aa2d94 | 407 | f->_IO_write_ptr += count; |
86187531 UD |
408 | #endif |
409 | s += count; | |
96aa2d94 RM |
410 | } |
411 | else if (count <= 0) | |
412 | count = 0; | |
413 | else | |
414 | { | |
40a55d20 UD |
415 | char *p = f->_IO_write_ptr; |
416 | _IO_ssize_t i; | |
417 | for (i = count; --i >= 0; ) | |
418 | *p++ = *s++; | |
96aa2d94 RM |
419 | f->_IO_write_ptr = p; |
420 | } | |
421 | more -= count; | |
422 | } | |
9202ffe3 | 423 | if (more == 0 || _IO_OVERFLOW (f, (unsigned char) *s++) == EOF) |
96aa2d94 RM |
424 | break; |
425 | more--; | |
426 | } | |
427 | return n - more; | |
428 | } | |
429 | ||
430 | _IO_size_t | |
40a55d20 UD |
431 | _IO_sgetn (fp, data, n) |
432 | _IO_FILE *fp; | |
433 | void *data; | |
434 | _IO_size_t n; | |
96aa2d94 RM |
435 | { |
436 | /* FIXME handle putback buffer here! */ | |
437 | return _IO_XSGETN (fp, data, n); | |
438 | } | |
439 | ||
440 | _IO_size_t | |
40a55d20 UD |
441 | _IO_default_xsgetn (fp, data, n) |
442 | _IO_FILE *fp; | |
443 | void *data; | |
444 | _IO_size_t n; | |
96aa2d94 | 445 | { |
40a55d20 UD |
446 | _IO_size_t more = n; |
447 | char *s = (char*) data; | |
96aa2d94 RM |
448 | for (;;) |
449 | { | |
40a55d20 UD |
450 | /* Data available. */ |
451 | _IO_ssize_t count = fp->_IO_read_end - fp->_IO_read_ptr; | |
96aa2d94 RM |
452 | if (count > 0) |
453 | { | |
a68b0d31 | 454 | if ((_IO_size_t) count > more) |
96aa2d94 RM |
455 | count = more; |
456 | if (count > 20) | |
457 | { | |
86187531 UD |
458 | #ifdef _LIBC |
459 | s = __mempcpy (s, fp->_IO_read_ptr, count); | |
460 | #else | |
40a55d20 | 461 | memcpy (s, fp->_IO_read_ptr, count); |
96aa2d94 | 462 | s += count; |
86187531 | 463 | #endif |
96aa2d94 RM |
464 | fp->_IO_read_ptr += count; |
465 | } | |
466 | else if (count <= 0) | |
467 | count = 0; | |
468 | else | |
469 | { | |
40a55d20 UD |
470 | char *p = fp->_IO_read_ptr; |
471 | int i = (int) count; | |
472 | while (--i >= 0) | |
473 | *s++ = *p++; | |
96aa2d94 RM |
474 | fp->_IO_read_ptr = p; |
475 | } | |
476 | more -= count; | |
477 | } | |
40a55d20 | 478 | if (more == 0 || __underflow (fp) == EOF) |
96aa2d94 RM |
479 | break; |
480 | } | |
481 | return n - more; | |
482 | } | |
483 | ||
40a55d20 UD |
484 | #if 0 |
485 | /* Seems not to be needed. --drepper */ | |
96aa2d94 | 486 | int |
40a55d20 UD |
487 | _IO_sync (fp) |
488 | _IO_FILE *fp; | |
96aa2d94 RM |
489 | { |
490 | return 0; | |
491 | } | |
40a55d20 | 492 | #endif |
96aa2d94 | 493 | |
40a55d20 UD |
494 | _IO_FILE * |
495 | _IO_default_setbuf (fp, p, len) | |
496 | _IO_FILE *fp; | |
497 | char *p; | |
498 | _IO_ssize_t len; | |
96aa2d94 RM |
499 | { |
500 | if (_IO_SYNC (fp) == EOF) | |
501 | return NULL; | |
502 | if (p == NULL || len == 0) | |
503 | { | |
504 | fp->_flags |= _IO_UNBUFFERED; | |
40a55d20 | 505 | _IO_setb (fp, fp->_shortbuf, fp->_shortbuf+1, 0); |
96aa2d94 RM |
506 | } |
507 | else | |
508 | { | |
509 | fp->_flags &= ~_IO_UNBUFFERED; | |
40a55d20 | 510 | _IO_setb (fp, p, p+len, 0); |
96aa2d94 RM |
511 | } |
512 | fp->_IO_write_base = fp->_IO_write_ptr = fp->_IO_write_end = 0; | |
513 | fp->_IO_read_base = fp->_IO_read_ptr = fp->_IO_read_end = 0; | |
514 | return fp; | |
515 | } | |
516 | ||
d64b6ad0 | 517 | _IO_off64_t |
40a55d20 UD |
518 | _IO_default_seekpos (fp, pos, mode) |
519 | _IO_FILE *fp; | |
d64b6ad0 | 520 | _IO_off64_t pos; |
40a55d20 | 521 | int mode; |
96aa2d94 | 522 | { |
d64b6ad0 | 523 | return _IO_SEEKOFF (fp, pos, 0, mode); |
96aa2d94 RM |
524 | } |
525 | ||
526 | int | |
40a55d20 UD |
527 | _IO_default_doallocate (fp) |
528 | _IO_FILE *fp; | |
96aa2d94 | 529 | { |
f8b87ef0 UD |
530 | char *buf; |
531 | ||
40a55d20 UD |
532 | ALLOC_BUF (buf, _IO_BUFSIZ, EOF); |
533 | _IO_setb (fp, buf, buf+_IO_BUFSIZ, 1); | |
96aa2d94 RM |
534 | return 1; |
535 | } | |
536 | ||
537 | void | |
40a55d20 UD |
538 | _IO_init (fp, flags) |
539 | _IO_FILE *fp; | |
540 | int flags; | |
d64b6ad0 UD |
541 | { |
542 | _IO_no_init (fp, flags, -1, NULL, NULL); | |
543 | } | |
544 | ||
545 | void | |
546 | _IO_no_init (fp, flags, orientation, wd, jmp) | |
547 | _IO_FILE *fp; | |
548 | int flags; | |
549 | int orientation; | |
550 | struct _IO_wide_data *wd; | |
551 | struct _IO_jump_t *jmp; | |
96aa2d94 RM |
552 | { |
553 | fp->_flags = _IO_MAGIC|flags; | |
554 | fp->_IO_buf_base = NULL; | |
555 | fp->_IO_buf_end = NULL; | |
556 | fp->_IO_read_base = NULL; | |
557 | fp->_IO_read_ptr = NULL; | |
558 | fp->_IO_read_end = NULL; | |
559 | fp->_IO_write_base = NULL; | |
560 | fp->_IO_write_ptr = NULL; | |
561 | fp->_IO_write_end = NULL; | |
562 | fp->_chain = NULL; /* Not necessary. */ | |
563 | ||
564 | fp->_IO_save_base = NULL; | |
565 | fp->_IO_backup_base = NULL; | |
566 | fp->_IO_save_end = NULL; | |
567 | fp->_markers = NULL; | |
568 | fp->_cur_column = 0; | |
bd355af0 UD |
569 | #if _IO_JUMPS_OFFSET |
570 | fp->_vtable_offset = 0; | |
571 | #endif | |
7c713e28 | 572 | #ifdef _IO_MTSAFE_IO |
df4ef2ab | 573 | _IO_lock_init (*fp->_lock); |
7c713e28 | 574 | #endif |
d64b6ad0 UD |
575 | fp->_mode = orientation; |
576 | if (orientation >= 0) | |
577 | { | |
578 | fp->_wide_data = wd; | |
579 | fp->_wide_data->_IO_buf_base = NULL; | |
580 | fp->_wide_data->_IO_buf_end = NULL; | |
581 | fp->_wide_data->_IO_read_base = NULL; | |
582 | fp->_wide_data->_IO_read_ptr = NULL; | |
583 | fp->_wide_data->_IO_read_end = NULL; | |
584 | fp->_wide_data->_IO_write_base = NULL; | |
585 | fp->_wide_data->_IO_write_ptr = NULL; | |
586 | fp->_wide_data->_IO_write_end = NULL; | |
587 | fp->_wide_data->_IO_save_base = NULL; | |
588 | fp->_wide_data->_IO_backup_base = NULL; | |
589 | fp->_wide_data->_IO_save_end = NULL; | |
590 | ||
591 | fp->_wide_data->_wide_vtable = jmp; | |
592 | } | |
96aa2d94 RM |
593 | } |
594 | ||
595 | int | |
40a55d20 UD |
596 | _IO_default_sync (fp) |
597 | _IO_FILE *fp; | |
96aa2d94 RM |
598 | { |
599 | return 0; | |
600 | } | |
601 | ||
602 | /* The way the C++ classes are mapped into the C functions in the | |
603 | current implementation, this function can get called twice! */ | |
604 | ||
605 | void | |
40a55d20 UD |
606 | _IO_default_finish (fp, dummy) |
607 | _IO_FILE *fp; | |
608 | int dummy; | |
96aa2d94 RM |
609 | { |
610 | struct _IO_marker *mark; | |
611 | if (fp->_IO_buf_base && !(fp->_flags & _IO_USER_BUF)) | |
612 | { | |
40a55d20 | 613 | FREE_BUF (fp->_IO_buf_base, _IO_blen (fp)); |
96aa2d94 RM |
614 | fp->_IO_buf_base = fp->_IO_buf_end = NULL; |
615 | } | |
616 | ||
617 | for (mark = fp->_markers; mark != NULL; mark = mark->_next) | |
618 | mark->_sbuf = NULL; | |
619 | ||
620 | if (fp->_IO_save_base) | |
621 | { | |
622 | free (fp->_IO_save_base); | |
623 | fp->_IO_save_base = NULL; | |
624 | } | |
625 | ||
7c713e28 | 626 | #ifdef _IO_MTSAFE_IO |
68dbb3a6 | 627 | _IO_lock_fini (*fp->_lock); |
7c713e28 | 628 | #endif |
adfa2078 | 629 | |
2ca8b1ee | 630 | _IO_un_link ((struct _IO_FILE_plus *) fp); |
96aa2d94 RM |
631 | } |
632 | ||
d64b6ad0 | 633 | _IO_off64_t |
40a55d20 UD |
634 | _IO_default_seekoff (fp, offset, dir, mode) |
635 | _IO_FILE *fp; | |
dfd2257a | 636 | _IO_off64_t offset; |
40a55d20 UD |
637 | int dir; |
638 | int mode; | |
96aa2d94 RM |
639 | { |
640 | return _IO_pos_BAD; | |
641 | } | |
642 | ||
643 | int | |
40a55d20 UD |
644 | _IO_sputbackc (fp, c) |
645 | _IO_FILE *fp; | |
646 | int c; | |
96aa2d94 | 647 | { |
19bc17a9 | 648 | int result; |
adfa2078 | 649 | |
96aa2d94 RM |
650 | if (fp->_IO_read_ptr > fp->_IO_read_base |
651 | && (unsigned char)fp->_IO_read_ptr[-1] == (unsigned char)c) | |
652 | { | |
653 | fp->_IO_read_ptr--; | |
40a55d20 | 654 | result = (unsigned char) c; |
96aa2d94 | 655 | } |
19bc17a9 RM |
656 | else |
657 | result = _IO_PBACKFAIL (fp, c); | |
658 | ||
659 | if (result != EOF) | |
660 | fp->_flags &= ~_IO_EOF_SEEN; | |
661 | ||
662 | return result; | |
96aa2d94 RM |
663 | } |
664 | ||
665 | int | |
40a55d20 UD |
666 | _IO_sungetc (fp) |
667 | _IO_FILE *fp; | |
96aa2d94 | 668 | { |
19bc17a9 | 669 | int result; |
adfa2078 | 670 | |
96aa2d94 RM |
671 | if (fp->_IO_read_ptr > fp->_IO_read_base) |
672 | { | |
673 | fp->_IO_read_ptr--; | |
40a55d20 | 674 | result = (unsigned char) *fp->_IO_read_ptr; |
96aa2d94 RM |
675 | } |
676 | else | |
19bc17a9 RM |
677 | result = _IO_PBACKFAIL (fp, EOF); |
678 | ||
679 | if (result != EOF) | |
680 | fp->_flags &= ~_IO_EOF_SEEN; | |
681 | ||
682 | return result; | |
96aa2d94 RM |
683 | } |
684 | ||
685 | #if 0 /* Work in progress */ | |
40a55d20 UD |
686 | /* Seems not to be needed. */ |
687 | #if 0 | |
96aa2d94 | 688 | void |
40a55d20 UD |
689 | _IO_set_column (fp, c) |
690 | _IO_FILE *fp; | |
691 | int c; | |
96aa2d94 RM |
692 | { |
693 | if (c == -1) | |
694 | fp->_column = -1; | |
695 | else | |
696 | fp->_column = c - (fp->_IO_write_ptr - fp->_IO_write_base); | |
697 | } | |
698 | #else | |
699 | int | |
40a55d20 UD |
700 | _IO_set_column (fp, i) |
701 | _IO_FILE *fp; | |
702 | int i; | |
96aa2d94 | 703 | { |
40a55d20 | 704 | fp->_cur_column = i + 1; |
96aa2d94 RM |
705 | return 0; |
706 | } | |
707 | #endif | |
40a55d20 | 708 | #endif |
96aa2d94 RM |
709 | |
710 | ||
711 | unsigned | |
40a55d20 UD |
712 | _IO_adjust_column (start, line, count) |
713 | unsigned start; | |
714 | const char *line; | |
715 | int count; | |
96aa2d94 | 716 | { |
40a55d20 | 717 | const char *ptr = line + count; |
96aa2d94 RM |
718 | while (ptr > line) |
719 | if (*--ptr == '\n') | |
720 | return line + count - ptr - 1; | |
721 | return start + count; | |
722 | } | |
723 | ||
40a55d20 UD |
724 | #if 0 |
725 | /* Seems not to be needed. --drepper */ | |
96aa2d94 | 726 | int |
40a55d20 UD |
727 | _IO_get_column (fp) |
728 | _IO_FILE *fp; | |
96aa2d94 | 729 | { |
adfa2078 | 730 | if (fp->_cur_column) |
40a55d20 | 731 | return _IO_adjust_column (fp->_cur_column - 1, |
96aa2d94 RM |
732 | fp->_IO_write_base, |
733 | fp->_IO_write_ptr - fp->_IO_write_base); | |
734 | return -1; | |
735 | } | |
40a55d20 | 736 | #endif |
96aa2d94 RM |
737 | |
738 | int | |
40a55d20 | 739 | _IO_flush_all () |
96aa2d94 RM |
740 | { |
741 | int result = 0; | |
2ca8b1ee GM |
742 | struct _IO_FILE_plus *fp; |
743 | for (fp = _IO_list_all; fp != NULL; fp = fp->file._chain) | |
744 | if (((fp->file._mode < 0 && fp->file._IO_write_ptr > fp->file._IO_write_base) | |
745 | || (fp->file._vtable_offset == 0 | |
746 | && fp->file._mode > 0 && (fp->file._wide_data->_IO_write_ptr | |
747 | > fp->file._wide_data->_IO_write_base))) | |
748 | && _IO_OVERFLOW (&fp->file, EOF) == EOF) | |
96aa2d94 RM |
749 | result = EOF; |
750 | return result; | |
751 | } | |
752 | ||
753 | void | |
40a55d20 | 754 | _IO_flush_all_linebuffered () |
96aa2d94 | 755 | { |
2ca8b1ee GM |
756 | struct _IO_FILE_plus *fp; |
757 | for (fp = _IO_list_all; fp != NULL; fp = fp->file._chain) | |
758 | if ((fp->file._flags & _IO_NO_WRITES) == 0 && fp->file._flags & _IO_LINE_BUF) | |
759 | _IO_OVERFLOW (&fp->file, EOF); | |
96aa2d94 RM |
760 | } |
761 | ||
628a0aa1 | 762 | static void _IO_unbuffer_write __P ((void)); |
40a55d20 UD |
763 | |
764 | static void | |
628a0aa1 | 765 | _IO_unbuffer_write () |
96aa2d94 | 766 | { |
2ca8b1ee GM |
767 | struct _IO_FILE_plus *fp; |
768 | for (fp = _IO_list_all; fp != NULL; fp = fp->file._chain) | |
769 | if (! (fp->file._flags & _IO_UNBUFFERED) | |
770 | && (! (fp->file._flags & _IO_NO_WRITES) | |
771 | || (fp->file._flags & _IO_IS_APPENDING))) | |
772 | _IO_SETBUF (&fp->file, NULL, 0); | |
96aa2d94 RM |
773 | } |
774 | ||
310b3460 | 775 | int |
40a55d20 | 776 | _IO_cleanup () |
96aa2d94 | 777 | { |
310b3460 | 778 | int result = _IO_flush_all (); |
96aa2d94 RM |
779 | |
780 | /* We currently don't have a reliable mechanism for making sure that | |
781 | C++ static destructors are executed in the correct order. | |
6d52618b | 782 | So it is possible that other static destructors might want to |
96aa2d94 RM |
783 | write to cout - and they're supposed to be able to do so. |
784 | ||
adfa2078 | 785 | The following will make the standard streambufs be unbuffered, |
96aa2d94 | 786 | which forces any output from late destructors to be written out. */ |
628a0aa1 | 787 | _IO_unbuffer_write (); |
310b3460 UD |
788 | |
789 | return result; | |
96aa2d94 RM |
790 | } |
791 | ||
f2ea0f5b | 792 | |
96aa2d94 | 793 | void |
40a55d20 UD |
794 | _IO_init_marker (marker, fp) |
795 | struct _IO_marker *marker; | |
796 | _IO_FILE *fp; | |
96aa2d94 RM |
797 | { |
798 | marker->_sbuf = fp; | |
40a55d20 UD |
799 | if (_IO_in_put_mode (fp)) |
800 | _IO_switch_to_get_mode (fp); | |
801 | if (_IO_in_backup (fp)) | |
96aa2d94 RM |
802 | marker->_pos = fp->_IO_read_ptr - fp->_IO_read_end; |
803 | else | |
804 | marker->_pos = fp->_IO_read_ptr - fp->_IO_read_base; | |
adfa2078 | 805 | |
96aa2d94 RM |
806 | /* Should perhaps sort the chain? */ |
807 | marker->_next = fp->_markers; | |
808 | fp->_markers = marker; | |
809 | } | |
810 | ||
811 | void | |
40a55d20 UD |
812 | _IO_remove_marker (marker) |
813 | struct _IO_marker *marker; | |
96aa2d94 RM |
814 | { |
815 | /* Unlink from sb's chain. */ | |
40a55d20 | 816 | struct _IO_marker **ptr = &marker->_sbuf->_markers; |
96aa2d94 RM |
817 | for (; ; ptr = &(*ptr)->_next) |
818 | { | |
819 | if (*ptr == NULL) | |
820 | break; | |
821 | else if (*ptr == marker) | |
822 | { | |
823 | *ptr = marker->_next; | |
824 | return; | |
825 | } | |
826 | } | |
827 | #if 0 | |
828 | if _sbuf has a backup area that is no longer needed, should we delete | |
829 | it now, or wait until the next underflow? | |
830 | #endif | |
831 | } | |
832 | ||
833 | #define BAD_DELTA EOF | |
834 | ||
835 | int | |
40a55d20 UD |
836 | _IO_marker_difference (mark1, mark2) |
837 | struct _IO_marker *mark1; | |
838 | struct _IO_marker *mark2; | |
96aa2d94 RM |
839 | { |
840 | return mark1->_pos - mark2->_pos; | |
841 | } | |
842 | ||
6d52618b | 843 | /* Return difference between MARK and current position of MARK's stream. */ |
96aa2d94 | 844 | int |
40a55d20 UD |
845 | _IO_marker_delta (mark) |
846 | struct _IO_marker *mark; | |
96aa2d94 RM |
847 | { |
848 | int cur_pos; | |
849 | if (mark->_sbuf == NULL) | |
850 | return BAD_DELTA; | |
40a55d20 | 851 | if (_IO_in_backup (mark->_sbuf)) |
96aa2d94 RM |
852 | cur_pos = mark->_sbuf->_IO_read_ptr - mark->_sbuf->_IO_read_end; |
853 | else | |
854 | cur_pos = mark->_sbuf->_IO_read_ptr - mark->_sbuf->_IO_read_base; | |
855 | return mark->_pos - cur_pos; | |
856 | } | |
857 | ||
858 | int | |
40a55d20 UD |
859 | _IO_seekmark (fp, mark, delta) |
860 | _IO_FILE *fp; | |
861 | struct _IO_marker *mark; | |
862 | int delta; | |
96aa2d94 RM |
863 | { |
864 | if (mark->_sbuf != fp) | |
865 | return EOF; | |
866 | if (mark->_pos >= 0) | |
867 | { | |
40a55d20 UD |
868 | if (_IO_in_backup (fp)) |
869 | _IO_switch_to_main_get_area (fp); | |
96aa2d94 RM |
870 | fp->_IO_read_ptr = fp->_IO_read_base + mark->_pos; |
871 | } | |
872 | else | |
873 | { | |
40a55d20 | 874 | if (!_IO_in_backup (fp)) |
05f732b3 | 875 | _IO_switch_to_backup_area (fp); |
96aa2d94 RM |
876 | fp->_IO_read_ptr = fp->_IO_read_end + mark->_pos; |
877 | } | |
878 | return 0; | |
879 | } | |
880 | ||
881 | void | |
40a55d20 UD |
882 | _IO_unsave_markers (fp) |
883 | _IO_FILE *fp; | |
96aa2d94 | 884 | { |
40a55d20 | 885 | struct _IO_marker *mark = fp->_markers; |
96aa2d94 RM |
886 | if (mark) |
887 | { | |
888 | #ifdef TODO | |
40a55d20 | 889 | streampos offset = seekoff (0, ios::cur, ios::in); |
96aa2d94 RM |
890 | if (offset != EOF) |
891 | { | |
40a55d20 | 892 | offset += eGptr () - Gbase (); |
96aa2d94 | 893 | for ( ; mark != NULL; mark = mark->_next) |
40a55d20 | 894 | mark->set_streampos (mark->_pos + offset); |
96aa2d94 RM |
895 | } |
896 | else | |
897 | { | |
898 | for ( ; mark != NULL; mark = mark->_next) | |
40a55d20 | 899 | mark->set_streampos (EOF); |
96aa2d94 RM |
900 | } |
901 | #endif | |
902 | fp->_markers = 0; | |
903 | } | |
904 | ||
40a55d20 UD |
905 | if (_IO_have_backup (fp)) |
906 | _IO_free_backup_area (fp); | |
96aa2d94 RM |
907 | } |
908 | ||
40a55d20 UD |
909 | #if 0 |
910 | /* Seems not to be needed. --drepper */ | |
96aa2d94 | 911 | int |
40a55d20 UD |
912 | _IO_nobackup_pbackfail (fp, c) |
913 | _IO_FILE *fp; | |
914 | int c; | |
96aa2d94 RM |
915 | { |
916 | if (fp->_IO_read_ptr > fp->_IO_read_base) | |
917 | fp->_IO_read_ptr--; | |
918 | if (c != EOF && *fp->_IO_read_ptr != c) | |
919 | *fp->_IO_read_ptr = c; | |
40a55d20 | 920 | return (unsigned char) c; |
96aa2d94 | 921 | } |
40a55d20 | 922 | #endif |
96aa2d94 RM |
923 | |
924 | int | |
40a55d20 UD |
925 | _IO_default_pbackfail (fp, c) |
926 | _IO_FILE *fp; | |
927 | int c; | |
96aa2d94 | 928 | { |
00bc5db0 | 929 | if (fp->_IO_read_ptr > fp->_IO_read_base && !_IO_in_backup (fp) |
c94a8080 | 930 | && (unsigned char) fp->_IO_read_ptr[-1] == c) |
00bc5db0 UD |
931 | --fp->_IO_read_ptr; |
932 | else | |
40a55d20 UD |
933 | { |
934 | /* Need to handle a filebuf in write mode (switch to read mode). FIXME!*/ | |
05f732b3 | 935 | if (!_IO_in_backup (fp)) |
40a55d20 | 936 | { |
05f732b3 UD |
937 | /* We need to keep the invariant that the main get area |
938 | logically follows the backup area. */ | |
939 | if (fp->_IO_read_ptr > fp->_IO_read_base && _IO_have_backup (fp)) | |
940 | { | |
941 | if (save_for_backup (fp, fp->_IO_read_ptr)) | |
942 | return EOF; | |
943 | } | |
944 | else if (!_IO_have_backup (fp)) | |
945 | { | |
946 | /* No backup buffer: allocate one. */ | |
947 | /* Use nshort buffer, if unused? (probably not) FIXME */ | |
948 | int backup_size = 128; | |
949 | char *bbuf = (char *) malloc (backup_size); | |
950 | if (bbuf == NULL) | |
951 | return EOF; | |
952 | fp->_IO_save_base = bbuf; | |
953 | fp->_IO_save_end = fp->_IO_save_base + backup_size; | |
954 | fp->_IO_backup_base = fp->_IO_save_end; | |
955 | } | |
956 | fp->_IO_read_base = fp->_IO_read_ptr; | |
40a55d20 UD |
957 | _IO_switch_to_backup_area (fp); |
958 | } | |
959 | else if (fp->_IO_read_ptr <= fp->_IO_read_base) | |
960 | { | |
961 | /* Increase size of existing backup buffer. */ | |
962 | _IO_size_t new_size; | |
963 | _IO_size_t old_size = fp->_IO_read_end - fp->_IO_read_base; | |
964 | char *new_buf; | |
965 | new_size = 2 * old_size; | |
966 | new_buf = (char *) malloc (new_size); | |
967 | if (new_buf == NULL) | |
968 | return EOF; | |
969 | memcpy (new_buf + (new_size - old_size), fp->_IO_read_base, | |
970 | old_size); | |
971 | free (fp->_IO_read_base); | |
972 | _IO_setg (fp, new_buf, new_buf + (new_size - old_size), | |
973 | new_buf + new_size); | |
974 | fp->_IO_backup_base = fp->_IO_read_ptr; | |
975 | } | |
00bc5db0 UD |
976 | |
977 | *--fp->_IO_read_ptr = c; | |
40a55d20 | 978 | } |
00bc5db0 | 979 | return (unsigned char) c; |
96aa2d94 RM |
980 | } |
981 | ||
d64b6ad0 | 982 | _IO_off64_t |
40a55d20 UD |
983 | _IO_default_seek (fp, offset, dir) |
984 | _IO_FILE *fp; | |
dfd2257a | 985 | _IO_off64_t offset; |
40a55d20 | 986 | int dir; |
96aa2d94 RM |
987 | { |
988 | return _IO_pos_BAD; | |
989 | } | |
990 | ||
991 | int | |
40a55d20 UD |
992 | _IO_default_stat (fp, st) |
993 | _IO_FILE *fp; | |
994 | void* st; | |
96aa2d94 RM |
995 | { |
996 | return EOF; | |
997 | } | |
998 | ||
999 | _IO_ssize_t | |
40a55d20 UD |
1000 | _IO_default_read (fp, data, n) |
1001 | _IO_FILE* fp; | |
1002 | void *data; | |
1003 | _IO_ssize_t n; | |
96aa2d94 RM |
1004 | { |
1005 | return -1; | |
1006 | } | |
1007 | ||
1008 | _IO_ssize_t | |
40a55d20 UD |
1009 | _IO_default_write (fp, data, n) |
1010 | _IO_FILE *fp; | |
1011 | const void *data; | |
1012 | _IO_ssize_t n; | |
96aa2d94 RM |
1013 | { |
1014 | return 0; | |
1015 | } | |
1016 | ||
dfd2257a UD |
1017 | int |
1018 | _IO_default_showmanyc (fp) | |
1019 | _IO_FILE *fp; | |
1020 | { | |
1021 | return -1; | |
1022 | } | |
1023 | ||
1024 | void | |
1025 | _IO_default_imbue (fp, locale) | |
1026 | _IO_FILE *fp; | |
1027 | void *locale; | |
1028 | { | |
1029 | } | |
1030 | ||
3fc9ca4e UD |
1031 | _IO_ITER |
1032 | _IO_iter_begin() | |
1033 | { | |
1034 | return _IO_list_all; | |
1035 | } | |
1036 | ||
1037 | _IO_ITER | |
1038 | _IO_iter_end() | |
1039 | { | |
2ca8b1ee | 1040 | return NULL; |
3fc9ca4e UD |
1041 | } |
1042 | ||
1043 | _IO_ITER | |
1044 | _IO_iter_next(iter) | |
1045 | _IO_ITER iter; | |
1046 | { | |
2ca8b1ee | 1047 | return iter->file._chain; |
3fc9ca4e UD |
1048 | } |
1049 | ||
1050 | _IO_FILE * | |
1051 | _IO_iter_file(iter) | |
1052 | _IO_ITER iter; | |
1053 | { | |
2ca8b1ee | 1054 | return (_IO_FILE *) iter; |
3fc9ca4e UD |
1055 | } |
1056 | ||
1057 | void | |
1058 | _IO_list_lock() | |
1059 | { | |
92cfdd8a | 1060 | #ifdef _IO_MTSAFE_IO |
3fc9ca4e | 1061 | _IO_lock_lock (list_all_lock); |
92cfdd8a | 1062 | #endif |
3fc9ca4e UD |
1063 | } |
1064 | ||
1065 | void | |
1066 | _IO_list_unlock() | |
1067 | { | |
92cfdd8a AJ |
1068 | #ifdef _IO_MTSAFE_IO |
1069 | _IO_lock_unlock (list_all_lock); | |
1070 | #endif | |
3fc9ca4e UD |
1071 | } |
1072 | ||
1073 | void | |
1074 | _IO_list_resetlock() | |
1075 | { | |
92cfdd8a | 1076 | #ifdef _IO_MTSAFE_IO |
3fc9ca4e | 1077 | _IO_lock_init (list_all_lock); |
92cfdd8a | 1078 | #endif |
3fc9ca4e UD |
1079 | } |
1080 | ||
96aa2d94 RM |
1081 | |
1082 | #ifdef TODO | |
1083 | #if defined(linux) | |
1084 | #define IO_CLEANUP ; | |
1085 | #endif | |
1086 | ||
1087 | #ifdef IO_CLEANUP | |
1088 | IO_CLEANUP | |
1089 | #else | |
1090 | struct __io_defs { | |
1091 | __io_defs() { } | |
40a55d20 | 1092 | ~__io_defs() { _IO_cleanup (); } |
adfa2078 | 1093 | }; |
96aa2d94 RM |
1094 | __io_defs io_defs__; |
1095 | #endif | |
1096 | ||
1097 | #endif /* TODO */ | |
adfa2078 UD |
1098 | |
1099 | #ifdef weak_alias | |
1100 | weak_alias (_IO_cleanup, _cleanup) | |
1101 | #endif | |
f65fd747 UD |
1102 | |
1103 | #ifdef text_set_element | |
1104 | text_set_element(__libc_atexit, _cleanup); | |
1105 | #endif |