1 /* Copyright (C) 1993, 1997-2001, 2002 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 As a special exception, if you link the code in this file with
20 files compiled with a GNU compiler to produce an executable,
21 that does not cause the resulting executable to be covered by
22 the GNU Lesser General Public License. This exception does not
23 however invalidate any other reasons why the executable file
24 might be covered by the GNU Lesser General Public License.
25 This exception applies to code released by its copyright holders
26 in files containing the exception. */
30 # define __set_errno(Val) errno = (Val)
32 #if defined __GLIBC__ && __GLIBC__ >= 2
33 # include <bits/libc-lock.h>
35 /*# include <comthread.h>*/
40 /* Control of exported symbols. Used in glibc. By default we don't
43 # define INTUSE(name) name
49 # define INTDEF2(name)
56 #define _IO_seek_set 0
57 #define _IO_seek_cur 1
58 #define _IO_seek_end 2
60 /* THE JUMPTABLE FUNCTIONS.
62 * The _IO_FILE type is used to implement the FILE type in GNU libc,
63 * as well as the streambuf class in GNU iostreams for C++.
64 * These are all the same, just used differently.
65 * An _IO_FILE (or FILE) object is allows followed by a pointer to
66 * a jump table (of pointers to functions). The pointer is accessed
67 * with the _IO_JUMPS macro. The jump table has a eccentric format,
68 * so as to be compatible with the layout of a C++ virtual function table.
69 * (as implemented by g++). When a pointer to a streambuf object is
70 * coerced to an (_IO_FILE*), then _IO_JUMPS on the result just
71 * happens to point to the virtual function table of the streambuf.
72 * Thus the _IO_JUMPS function table used for C stdio/libio does
73 * double duty as the virtual function table for C++ streambuf.
75 * The entries in the _IO_JUMPS function table (and hence also the
76 * virtual functions of a streambuf) are described below.
77 * The first parameter of each function entry is the _IO_FILE/streambuf
78 * object being acted on (i.e. the 'this' parameter).
81 #if (!defined _IO_USE_OLD_IO_FILE \
82 && (!defined _G_IO_NO_BACKWARD_COMPAT || _G_IO_NO_BACKWARD_COMPAT == 0))
83 # define _IO_JUMPS_OFFSET 1
86 #define _IO_JUMPS(THIS) (THIS)->vtable
87 #define _IO_WIDE_JUMPS(THIS) ((struct _IO_FILE *) (THIS))->_wide_data->_wide_vtable
88 #define _IO_CHECK_WIDE(THIS) (((struct _IO_FILE *) (THIS))->_wide_data != NULL)
91 # define _IO_JUMPS_FUNC(THIS) \
92 (*(struct _IO_jump_t **) ((void *) &_IO_JUMPS ((struct _IO_FILE_plus *) (THIS)) \
93 + (THIS)->_vtable_offset))
95 # define _IO_JUMPS_FUNC(THIS) _IO_JUMPS ((struct _IO_FILE_plus *) (THIS))
97 #define _IO_WIDE_JUMPS_FUNC(THIS) _IO_WIDE_JUMPS(THIS)
98 #ifdef _G_USING_THUNKS
99 # define JUMP_FIELD(TYPE, NAME) TYPE NAME
100 # define JUMP0(FUNC, THIS) _IO_JUMPS_FUNC(THIS)->FUNC (THIS)
101 # define JUMP1(FUNC, THIS, X1) _IO_JUMPS_FUNC(THIS)->FUNC (THIS, X1)
102 # define JUMP2(FUNC, THIS, X1, X2) _IO_JUMPS_FUNC(THIS)->FUNC (THIS, X1, X2)
103 # define JUMP3(FUNC, THIS, X1,X2,X3) _IO_JUMPS_FUNC(THIS)->FUNC (THIS, X1,X2, X3)
104 # define JUMP_INIT(NAME, VALUE) VALUE
105 # define JUMP_INIT_DUMMY JUMP_INIT(dummy, 0), JUMP_INIT (dummy2, 0)
107 # define WJUMP0(FUNC, THIS) _IO_WIDE_JUMPS_FUNC(THIS)->FUNC (THIS)
108 # define WJUMP1(FUNC, THIS, X1) _IO_WIDE_JUMPS_FUNC(THIS)->FUNC (THIS, X1)
109 # define WJUMP2(FUNC, THIS, X1, X2) _IO_WIDE_JUMPS_FUNC(THIS)->FUNC (THIS, X1, X2)
110 # define WJUMP3(FUNC, THIS, X1,X2,X3) _IO_WIDE_JUMPS_FUNC(THIS)->FUNC (THIS, X1,X2, X3)
112 /* These macros will change when we re-implement vtables to use "thunks"! */
113 # define JUMP_FIELD(TYPE, NAME) struct { short delta1, delta2; TYPE pfn; } NAME
114 # define JUMP0(FUNC, THIS) _IO_JUMPS_FUNC(THIS)->FUNC.pfn (THIS)
115 # define JUMP1(FUNC, THIS, X1) _IO_JUMPS_FUNC(THIS)->FUNC.pfn (THIS, X1)
116 # define JUMP2(FUNC, THIS, X1, X2) _IO_JUMPS_FUNC(THIS)->FUNC.pfn (THIS, X1, X2)
117 # define JUMP3(FUNC, THIS, X1,X2,X3) _IO_JUMPS_FUNC(THIS)->FUNC.pfn (THIS, X1,X2,X3)
118 # define JUMP_INIT(NAME, VALUE) {0, 0, VALUE}
119 # define JUMP_INIT_DUMMY JUMP_INIT(dummy, 0)
121 # define WJUMP0(FUNC, THIS) _IO_WIDE_JUMPS_FUNC(THIS)->FUNC.pfn (THIS)
122 # define WJUMP1(FUNC, THIS, X1) _IO_WIDE_JUMPS_FUNC(THIS)->FUNC.pfn (THIS, X1)
123 # define WJUMP2(FUNC, THIS, X1, X2) _IO_WIDE_JUMPS_FUNC(THIS)->FUNC.pfn (THIS, X1, X2)
124 # define WJUMP3(FUNC, THIS, X1,X2,X3) _IO_WIDE_JUMPS_FUNC(THIS)->FUNC.pfn (THIS, X1,X2,X3)
127 /* The 'finish' function does any final cleaning up of an _IO_FILE object.
128 It does not delete (free) it, but does everything else to finalize it.
129 It matches the streambuf::~streambuf virtual destructor. */
130 typedef void (*_IO_finish_t
) __PMT ((_IO_FILE
*, int)); /* finalize */
131 #define _IO_FINISH(FP) JUMP1 (__finish, FP, 0)
132 #define _IO_WFINISH(FP) WJUMP1 (__finish, FP, 0)
134 /* The 'overflow' hook flushes the buffer.
135 The second argument is a character, or EOF.
136 It matches the streambuf::overflow virtual function. */
137 typedef int (*_IO_overflow_t
) __PMT ((_IO_FILE
*, int));
138 #define _IO_OVERFLOW(FP, CH) JUMP1 (__overflow, FP, CH)
139 #define _IO_WOVERFLOW(FP, CH) WJUMP1 (__overflow, FP, CH)
141 /* The 'underflow' hook tries to fills the get buffer.
142 It returns the next character (as an unsigned char) or EOF. The next
143 character remains in the get buffer, and the get position is not changed.
144 It matches the streambuf::underflow virtual function. */
145 typedef int (*_IO_underflow_t
) __PMT ((_IO_FILE
*));
146 #define _IO_UNDERFLOW(FP) JUMP0 (__underflow, FP)
147 #define _IO_WUNDERFLOW(FP) WJUMP0 (__underflow, FP)
149 /* The 'uflow' hook returns the next character in the input stream
150 (cast to unsigned char), and increments the read position;
151 EOF is returned on failure.
152 It matches the streambuf::uflow virtual function, which is not in the
153 cfront implementation, but was added to C++ by the ANSI/ISO committee. */
154 #define _IO_UFLOW(FP) JUMP0 (__uflow, FP)
155 #define _IO_WUFLOW(FP) WJUMP0 (__uflow, FP)
157 /* The 'pbackfail' hook handles backing up.
158 It matches the streambuf::pbackfail virtual function. */
159 typedef int (*_IO_pbackfail_t
) __PMT ((_IO_FILE
*, int));
160 #define _IO_PBACKFAIL(FP, CH) JUMP1 (__pbackfail, FP, CH)
161 #define _IO_WPBACKFAIL(FP, CH) WJUMP1 (__pbackfail, FP, CH)
163 /* The 'xsputn' hook writes upto N characters from buffer DATA.
164 Returns the number of character actually written.
165 It matches the streambuf::xsputn virtual function. */
166 typedef _IO_size_t (*_IO_xsputn_t
) __PMT ((_IO_FILE
*FP
, const void *DATA
,
168 #define _IO_XSPUTN(FP, DATA, N) JUMP2 (__xsputn, FP, DATA, N)
169 #define _IO_WXSPUTN(FP, DATA, N) WJUMP2 (__xsputn, FP, DATA, N)
171 /* The 'xsgetn' hook reads upto N characters into buffer DATA.
172 Returns the number of character actually read.
173 It matches the streambuf::xsgetn virtual function. */
174 typedef _IO_size_t (*_IO_xsgetn_t
) __PMT ((_IO_FILE
*FP
, void *DATA
,
176 #define _IO_XSGETN(FP, DATA, N) JUMP2 (__xsgetn, FP, DATA, N)
177 #define _IO_WXSGETN(FP, DATA, N) WJUMP2 (__xsgetn, FP, DATA, N)
179 /* The 'seekoff' hook moves the stream position to a new position
180 relative to the start of the file (if DIR==0), the current position
181 (MODE==1), or the end of the file (MODE==2).
182 It matches the streambuf::seekoff virtual function.
183 It is also used for the ANSI fseek function. */
184 typedef _IO_off64_t (*_IO_seekoff_t
) __PMT ((_IO_FILE
*FP
, _IO_off64_t OFF
,
186 #define _IO_SEEKOFF(FP, OFF, DIR, MODE) JUMP3 (__seekoff, FP, OFF, DIR, MODE)
187 #define _IO_WSEEKOFF(FP, OFF, DIR, MODE) WJUMP3 (__seekoff, FP, OFF, DIR, MODE)
189 /* The 'seekpos' hook also moves the stream position,
190 but to an absolute position given by a fpos64_t (seekpos).
191 It matches the streambuf::seekpos virtual function.
192 It is also used for the ANSI fgetpos and fsetpos functions. */
193 /* The _IO_seek_cur and _IO_seek_end options are not allowed. */
194 typedef _IO_off64_t (*_IO_seekpos_t
) __PMT ((_IO_FILE
*, _IO_off64_t
, int));
195 #define _IO_SEEKPOS(FP, POS, FLAGS) JUMP2 (__seekpos, FP, POS, FLAGS)
196 #define _IO_WSEEKPOS(FP, POS, FLAGS) WJUMP2 (__seekpos, FP, POS, FLAGS)
198 /* The 'setbuf' hook gives a buffer to the file.
199 It matches the streambuf::setbuf virtual function. */
200 typedef _IO_FILE
* (*_IO_setbuf_t
) __PMT ((_IO_FILE
*, char *, _IO_ssize_t
));
201 #define _IO_SETBUF(FP, BUFFER, LENGTH) JUMP2 (__setbuf, FP, BUFFER, LENGTH)
202 #define _IO_WSETBUF(FP, BUFFER, LENGTH) WJUMP2 (__setbuf, FP, BUFFER, LENGTH)
204 /* The 'sync' hook attempts to synchronize the internal data structures
205 of the file with the external state.
206 It matches the streambuf::sync virtual function. */
207 typedef int (*_IO_sync_t
) __PMT ((_IO_FILE
*));
208 #define _IO_SYNC(FP) JUMP0 (__sync, FP)
209 #define _IO_WSYNC(FP) WJUMP0 (__sync, FP)
211 /* The 'doallocate' hook is used to tell the file to allocate a buffer.
212 It matches the streambuf::doallocate virtual function, which is not
213 in the ANSI/ISO C++ standard, but is part traditional implementations. */
214 typedef int (*_IO_doallocate_t
) __PMT ((_IO_FILE
*));
215 #define _IO_DOALLOCATE(FP) JUMP0 (__doallocate, FP)
216 #define _IO_WDOALLOCATE(FP) WJUMP0 (__doallocate, FP)
218 /* The following four hooks (sysread, syswrite, sysclose, sysseek, and
219 sysstat) are low-level hooks specific to this implementation.
220 There is no correspondence in the ANSI/ISO C++ standard library.
221 The hooks basically correspond to the Unix system functions
222 (read, write, close, lseek, and stat) except that a _IO_FILE*
223 parameter is used instead of a integer file descriptor; the default
224 implementation used for normal files just calls those functions.
225 The advantage of overriding these functions instead of the higher-level
226 ones (underflow, overflow etc) is that you can leave all the buffering
227 higher-level functions. */
229 /* The 'sysread' hook is used to read data from the external file into
230 an existing buffer. It generalizes the Unix read(2) function.
231 It matches the streambuf::sys_read virtual function, which is
232 specific to this implementation. */
233 typedef _IO_ssize_t (*_IO_read_t
) __PMT ((_IO_FILE
*, void *, _IO_ssize_t
));
234 #define _IO_SYSREAD(FP, DATA, LEN) JUMP2 (__read, FP, DATA, LEN)
235 #define _IO_WSYSREAD(FP, DATA, LEN) WJUMP2 (__read, FP, DATA, LEN)
237 /* The 'syswrite' hook is used to write data from an existing buffer
238 to an external file. It generalizes the Unix write(2) function.
239 It matches the streambuf::sys_write virtual function, which is
240 specific to this implementation. */
241 typedef _IO_ssize_t (*_IO_write_t
) __PMT ((_IO_FILE
*, const void *,
243 #define _IO_SYSWRITE(FP, DATA, LEN) JUMP2 (__write, FP, DATA, LEN)
244 #define _IO_WSYSWRITE(FP, DATA, LEN) WJUMP2 (__write, FP, DATA, LEN)
246 /* The 'sysseek' hook is used to re-position an external file.
247 It generalizes the Unix lseek(2) function.
248 It matches the streambuf::sys_seek virtual function, which is
249 specific to this implementation. */
250 typedef _IO_off64_t (*_IO_seek_t
) __PMT ((_IO_FILE
*, _IO_off64_t
, int));
251 #define _IO_SYSSEEK(FP, OFFSET, MODE) JUMP2 (__seek, FP, OFFSET, MODE)
252 #define _IO_WSYSSEEK(FP, OFFSET, MODE) WJUMP2 (__seek, FP, OFFSET, MODE)
254 /* The 'sysclose' hook is used to finalize (close, finish up) an
255 external file. It generalizes the Unix close(2) function.
256 It matches the streambuf::sys_close virtual function, which is
257 specific to this implementation. */
258 typedef int (*_IO_close_t
) __PMT ((_IO_FILE
*)); /* finalize */
259 #define _IO_SYSCLOSE(FP) JUMP0 (__close, FP)
260 #define _IO_WSYSCLOSE(FP) WJUMP0 (__close, FP)
262 /* The 'sysstat' hook is used to get information about an external file
263 into a struct stat buffer. It generalizes the Unix fstat(2) call.
264 It matches the streambuf::sys_stat virtual function, which is
265 specific to this implementation. */
266 typedef int (*_IO_stat_t
) __PMT ((_IO_FILE
*, void *));
267 #define _IO_SYSSTAT(FP, BUF) JUMP1 (__stat, FP, BUF)
268 #define _IO_WSYSSTAT(FP, BUF) WJUMP1 (__stat, FP, BUF)
270 /* The 'showmany' hook can be used to get an image how much input is
271 available. In many cases the answer will be 0 which means unknown
272 but some cases one can provide real information. */
273 typedef int (*_IO_showmanyc_t
) __PMT ((_IO_FILE
*));
274 #define _IO_SHOWMANYC(FP) JUMP0 (__showmanyc, FP)
275 #define _IO_WSHOWMANYC(FP) WJUMP0 (__showmanyc, FP)
277 /* The 'imbue' hook is used to get information about the currently
278 installed locales. */
279 typedef void (*_IO_imbue_t
) __PMT ((_IO_FILE
*, void *));
280 #define _IO_IMBUE(FP, LOCALE) JUMP1 (__imbue, FP, LOCALE)
281 #define _IO_WIMBUE(FP, LOCALE) WJUMP1 (__imbue, FP, LOCALE)
284 #define _IO_CHAR_TYPE char /* unsigned char ? */
285 #define _IO_INT_TYPE int
289 JUMP_FIELD(_G_size_t
, __dummy
);
290 #ifdef _G_USING_THUNKS
291 JUMP_FIELD(_G_size_t
, __dummy2
);
293 JUMP_FIELD(_IO_finish_t
, __finish
);
294 JUMP_FIELD(_IO_overflow_t
, __overflow
);
295 JUMP_FIELD(_IO_underflow_t
, __underflow
);
296 JUMP_FIELD(_IO_underflow_t
, __uflow
);
297 JUMP_FIELD(_IO_pbackfail_t
, __pbackfail
);
299 JUMP_FIELD(_IO_xsputn_t
, __xsputn
);
300 JUMP_FIELD(_IO_xsgetn_t
, __xsgetn
);
301 JUMP_FIELD(_IO_seekoff_t
, __seekoff
);
302 JUMP_FIELD(_IO_seekpos_t
, __seekpos
);
303 JUMP_FIELD(_IO_setbuf_t
, __setbuf
);
304 JUMP_FIELD(_IO_sync_t
, __sync
);
305 JUMP_FIELD(_IO_doallocate_t
, __doallocate
);
306 JUMP_FIELD(_IO_read_t
, __read
);
307 JUMP_FIELD(_IO_write_t
, __write
);
308 JUMP_FIELD(_IO_seek_t
, __seek
);
309 JUMP_FIELD(_IO_close_t
, __close
);
310 JUMP_FIELD(_IO_stat_t
, __stat
);
311 JUMP_FIELD(_IO_showmanyc_t
, __showmanyc
);
312 JUMP_FIELD(_IO_imbue_t
, __imbue
);
319 /* We always allocate an extra word following an _IO_FILE.
320 This contains a pointer to the function jump table used.
321 This is for compatibility with C++ streambuf; the word can
322 be used to smash to a pointer to a virtual function table. */
327 const struct _IO_jump_t
*vtable
;
330 /* Special file type for fopencookie function. */
331 struct _IO_cookie_file
333 struct _IO_FILE_plus __fp
;
335 _IO_cookie_io_functions_t __io_functions
;
338 _IO_FILE
*_IO_fopencookie (void *cookie
, const char *mode
,
339 _IO_cookie_io_functions_t io_functions
);
342 /* Iterator type for walking global linked list of _IO_FILE objects. */
344 typedef struct _IO_FILE
*_IO_ITER
;
346 /* Generic functions */
348 extern void _IO_switch_to_main_get_area
__P ((_IO_FILE
*));
349 extern void _IO_switch_to_backup_area
__P ((_IO_FILE
*));
350 extern int _IO_switch_to_get_mode
__P ((_IO_FILE
*));
351 extern void _IO_init
__P ((_IO_FILE
*, int));
352 extern int _IO_sputbackc
__P ((_IO_FILE
*, int));
353 extern int _IO_sungetc
__P ((_IO_FILE
*));
354 extern void _IO_un_link
__P ((struct _IO_FILE_plus
*));
355 extern void _IO_link_in
__P ((struct _IO_FILE_plus
*));
356 extern void _IO_doallocbuf
__P ((_IO_FILE
*));
357 extern void _IO_unsave_markers
__P ((_IO_FILE
*));
358 extern void _IO_setb
__P ((_IO_FILE
*, char *, char *, int));
359 extern unsigned _IO_adjust_column
__P ((unsigned, const char *, int));
360 #define _IO_sputn(__fp, __s, __n) _IO_XSPUTN (__fp, __s, __n)
362 extern void _IO_switch_to_main_wget_area
__P ((_IO_FILE
*));
363 extern void _IO_switch_to_wbackup_area
__P ((_IO_FILE
*));
364 extern int _IO_switch_to_wget_mode
__P ((_IO_FILE
*));
365 extern void _IO_wsetb
__P ((_IO_FILE
*, wchar_t *, wchar_t *, int));
366 extern wint_t _IO_sputbackwc
__P ((_IO_FILE
*, wint_t));
367 extern wint_t _IO_sungetwc
__P ((_IO_FILE
*));
368 extern void _IO_wdoallocbuf
__P ((_IO_FILE
*));
369 extern void _IO_unsave_wmarkers
__P ((_IO_FILE
*));
370 extern unsigned _IO_adjust_wcolumn
__P ((unsigned, const wchar_t *, int));
372 /* Marker-related function. */
374 extern void _IO_init_marker
__P ((struct _IO_marker
*, _IO_FILE
*));
375 extern void _IO_init_wmarker
__P ((struct _IO_marker
*, _IO_FILE
*));
376 extern void _IO_remove_marker
__P ((struct _IO_marker
*));
377 extern int _IO_marker_difference
__P ((struct _IO_marker
*,
378 struct _IO_marker
*));
379 extern int _IO_marker_delta
__P ((struct _IO_marker
*));
380 extern int _IO_wmarker_delta
__P ((struct _IO_marker
*));
381 extern int _IO_seekmark
__P ((_IO_FILE
*, struct _IO_marker
*, int));
382 extern int _IO_seekwmark
__P ((_IO_FILE
*, struct _IO_marker
*, int));
384 /* Functions for iterating global list and dealing with
387 extern _IO_ITER _IO_iter_begin
__P ((void));
388 extern _IO_ITER _IO_iter_end
__P ((void));
389 extern _IO_ITER _IO_iter_next
__P ((_IO_ITER
));
390 extern _IO_FILE
*_IO_iter_file
__P ((_IO_ITER
));
391 extern void _IO_list_lock
__P ((void));
392 extern void _IO_list_unlock
__P ((void));
393 extern void _IO_list_resetlock
__P ((void));
395 /* Default jumptable functions. */
397 extern int _IO_default_underflow
__P ((_IO_FILE
*));
398 extern int _IO_default_uflow
__P ((_IO_FILE
*));
399 extern wint_t _IO_wdefault_uflow
__P ((_IO_FILE
*));
400 extern int _IO_default_doallocate
__P ((_IO_FILE
*));
401 extern int _IO_wdefault_doallocate
__P ((_IO_FILE
*));
402 extern void _IO_default_finish
__P ((_IO_FILE
*, int));
403 extern void _IO_wdefault_finish
__P ((_IO_FILE
*, int));
404 extern int _IO_default_pbackfail
__P ((_IO_FILE
*, int));
405 extern wint_t _IO_wdefault_pbackfail
__P ((_IO_FILE
*, wint_t));
406 extern _IO_FILE
* _IO_default_setbuf
__P ((_IO_FILE
*, char *, _IO_ssize_t
));
407 extern _IO_FILE
* _IO_wdefault_setbuf
__P ((_IO_FILE
*, wchar_t *,
409 extern _IO_size_t _IO_default_xsputn
__P ((_IO_FILE
*, const void *,
411 extern _IO_size_t _IO_wdefault_xsputn
__P ((_IO_FILE
*, const void *,
413 extern _IO_size_t _IO_default_xsgetn
__P ((_IO_FILE
*, void *, _IO_size_t
));
414 extern _IO_size_t _IO_wdefault_xsgetn
__P ((_IO_FILE
*, void *, _IO_size_t
));
415 extern _IO_off64_t _IO_default_seekoff
__P ((_IO_FILE
*,
416 _IO_off64_t
, int, int));
417 extern _IO_off64_t _IO_default_seekpos
__P ((_IO_FILE
*, _IO_off64_t
, int));
418 extern _IO_ssize_t _IO_default_write
__P ((_IO_FILE
*, const void *,
420 extern _IO_ssize_t _IO_default_read
__P ((_IO_FILE
*, void *, _IO_ssize_t
));
421 extern int _IO_default_stat
__P ((_IO_FILE
*, void *));
422 extern _IO_off64_t _IO_default_seek
__P ((_IO_FILE
*, _IO_off64_t
, int));
423 extern int _IO_default_sync
__P ((_IO_FILE
*));
424 #define _IO_default_close ((_IO_close_t) _IO_default_sync)
425 extern int _IO_default_showmanyc
__P ((_IO_FILE
*));
426 extern void _IO_default_imbue
__P ((_IO_FILE
*, void *));
428 extern struct _IO_jump_t _IO_file_jumps
;
429 extern struct _IO_jump_t _IO_file_jumps_mmap attribute_hidden
;
430 extern struct _IO_jump_t _IO_wfile_jumps attribute_hidden
;
431 extern struct _IO_jump_t _IO_wfile_jumps_mmap attribute_hidden
;
432 extern struct _IO_jump_t _IO_old_file_jumps attribute_hidden
;
433 extern struct _IO_jump_t _IO_streambuf_jumps
;
434 extern struct _IO_jump_t _IO_proc_jumps attribute_hidden
;
435 extern struct _IO_jump_t _IO_old_proc_jumps attribute_hidden
;
436 extern struct _IO_jump_t _IO_str_jumps attribute_hidden
;
437 extern struct _IO_jump_t _IO_wstr_jumps attribute_hidden
;
438 extern struct _IO_codecvt __libio_codecvt attribute_hidden
;
439 extern int _IO_do_write
__P ((_IO_FILE
*, const char *, _IO_size_t
));
440 extern int _IO_new_do_write
__P ((_IO_FILE
*, const char *, _IO_size_t
));
441 extern int _IO_old_do_write
__P ((_IO_FILE
*, const char *, _IO_size_t
));
442 extern int _IO_wdo_write
__P ((_IO_FILE
*, const wchar_t *, _IO_size_t
));
443 extern int _IO_flush_all_lockp
__P ((int));
444 extern int _IO_flush_all
__P ((void));
445 extern int _IO_cleanup
__P ((void));
446 extern void _IO_flush_all_linebuffered
__P ((void));
447 extern int _IO_new_fgetpos
__P ((_IO_FILE
*, _IO_fpos_t
*));
448 extern int _IO_old_fgetpos
__P ((_IO_FILE
*, _IO_fpos_t
*));
449 extern int _IO_new_fsetpos
__P ((_IO_FILE
*, const _IO_fpos_t
*));
450 extern int _IO_old_fsetpos
__P ((_IO_FILE
*, const _IO_fpos_t
*));
451 extern int _IO_new_fgetpos64
__P ((_IO_FILE
*, _IO_fpos64_t
*));
452 extern int _IO_old_fgetpos64
__P ((_IO_FILE
*, _IO_fpos64_t
*));
453 extern int _IO_new_fsetpos64
__P ((_IO_FILE
*, const _IO_fpos64_t
*));
454 extern int _IO_old_fsetpos64
__P ((_IO_FILE
*, const _IO_fpos64_t
*));
457 #if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
458 # define _IO_do_flush(_f) \
460 ? INTUSE(_IO_do_write)(_f, (_f)->_IO_write_base, \
461 (_f)->_IO_write_ptr-(_f)->_IO_write_base) \
462 : INTUSE(_IO_wdo_write)(_f, (_f)->_wide_data->_IO_write_base, \
463 ((_f)->_wide_data->_IO_write_ptr \
464 - (_f)->_wide_data->_IO_write_base)))
466 # define _IO_do_flush(_f) \
467 INTUSE(_IO_do_write)(_f, (_f)->_IO_write_base, \
468 (_f)->_IO_write_ptr-(_f)->_IO_write_base)
470 #define _IO_old_do_flush(_f) \
471 _IO_old_do_write(_f, (_f)->_IO_write_base, \
472 (_f)->_IO_write_ptr-(_f)->_IO_write_base)
473 #define _IO_in_put_mode(_fp) ((_fp)->_flags & _IO_CURRENTLY_PUTTING)
474 #define _IO_mask_flags(fp, f, mask) \
475 ((fp)->_flags = ((fp)->_flags & ~(mask)) | ((f) & (mask)))
476 #define _IO_setg(fp, eb, g, eg) ((fp)->_IO_read_base = (eb),\
477 (fp)->_IO_read_ptr = (g), (fp)->_IO_read_end = (eg))
478 #define _IO_wsetg(fp, eb, g, eg) ((fp)->_wide_data->_IO_read_base = (eb),\
479 (fp)->_wide_data->_IO_read_ptr = (g), \
480 (fp)->_wide_data->_IO_read_end = (eg))
481 #define _IO_setp(__fp, __p, __ep) \
482 ((__fp)->_IO_write_base = (__fp)->_IO_write_ptr \
483 = __p, (__fp)->_IO_write_end = (__ep))
484 #define _IO_wsetp(__fp, __p, __ep) \
485 ((__fp)->_wide_data->_IO_write_base \
486 = (__fp)->_wide_data->_IO_write_ptr = __p, \
487 (__fp)->_wide_data->_IO_write_end = (__ep))
488 #define _IO_have_backup(fp) ((fp)->_IO_save_base != NULL)
489 #define _IO_have_wbackup(fp) ((fp)->_wide_data->_IO_save_base != NULL)
490 #define _IO_in_backup(fp) ((fp)->_flags & _IO_IN_BACKUP)
491 #define _IO_have_markers(fp) ((fp)->_markers != NULL)
492 #define _IO_blen(fp) ((fp)->_IO_buf_end - (fp)->_IO_buf_base)
493 #define _IO_wblen(fp) ((fp)->_wide_data->_IO_buf_end \
494 - (fp)->_wide_data->_IO_buf_base)
496 /* Jumptable functions for files. */
498 extern int _IO_file_doallocate
__P ((_IO_FILE
*));
499 extern _IO_FILE
* _IO_file_setbuf
__P ((_IO_FILE
*, char *, _IO_ssize_t
));
500 extern _IO_off64_t _IO_file_seekoff
__P ((_IO_FILE
*, _IO_off64_t
, int, int));
501 extern _IO_off64_t _IO_file_seekoff_mmap
__P ((_IO_FILE
*, _IO_off64_t
, int,
503 extern _IO_size_t _IO_file_xsputn
__P ((_IO_FILE
*, const void *, _IO_size_t
));
504 extern _IO_size_t _IO_file_xsgetn
__P ((_IO_FILE
*, void *, _IO_size_t
));
505 extern int _IO_file_stat
__P ((_IO_FILE
*, void *));
506 extern int _IO_file_close
__P ((_IO_FILE
*));
507 extern int _IO_file_close_mmap
__P ((_IO_FILE
*));
508 extern int _IO_file_underflow
__P ((_IO_FILE
*));
509 extern int _IO_file_underflow_mmap
__P ((_IO_FILE
*));
510 extern int _IO_file_overflow
__P ((_IO_FILE
*, int));
511 #define _IO_file_is_open(__fp) ((__fp)->_fileno != -1)
512 extern void _IO_file_init
__P ((struct _IO_FILE_plus
*));
513 extern _IO_FILE
* _IO_file_attach
__P ((_IO_FILE
*, int));
514 extern _IO_FILE
* _IO_file_open
__P ((_IO_FILE
*, const char *, int, int,
516 extern _IO_FILE
* _IO_file_fopen
__P ((_IO_FILE
*, const char *, const char *,
518 extern _IO_ssize_t _IO_file_write
__P ((_IO_FILE
*, const void *,
520 extern _IO_ssize_t _IO_file_read
__P ((_IO_FILE
*, void *, _IO_ssize_t
));
521 extern int _IO_file_sync
__P ((_IO_FILE
*));
522 extern int _IO_file_close_it
__P ((_IO_FILE
*));
523 extern _IO_off64_t _IO_file_seek
__P ((_IO_FILE
*, _IO_off64_t
, int));
524 extern void _IO_file_finish
__P ((_IO_FILE
*, int));
526 extern _IO_FILE
* _IO_new_file_attach
__P ((_IO_FILE
*, int));
527 extern int _IO_new_file_close_it
__P ((_IO_FILE
*));
528 extern void _IO_new_file_finish
__P ((_IO_FILE
*, int));
529 extern _IO_FILE
* _IO_new_file_fopen
__P ((_IO_FILE
*, const char *, const char *,
531 extern void _IO_no_init
__P ((_IO_FILE
*, int, int, struct _IO_wide_data
*,
532 struct _IO_jump_t
*));
533 extern void _IO_new_file_init
__P ((struct _IO_FILE_plus
*));
534 extern _IO_FILE
* _IO_new_file_setbuf
__P ((_IO_FILE
*, char *, _IO_ssize_t
));
535 extern int _IO_new_file_sync
__P ((_IO_FILE
*));
536 extern int _IO_new_file_underflow
__P ((_IO_FILE
*));
537 extern int _IO_new_file_overflow
__P ((_IO_FILE
*, int));
538 extern _IO_off64_t _IO_new_file_seekoff
__P ((_IO_FILE
*, _IO_off64_t
, int, int));
539 extern _IO_ssize_t _IO_new_file_write
__P ((_IO_FILE
*, const void *,
541 extern _IO_size_t _IO_new_file_xsputn
__P ((_IO_FILE
*, const void *, _IO_size_t
));
543 extern _IO_FILE
* _IO_old_file_setbuf
__P ((_IO_FILE
*, char *, _IO_ssize_t
));
544 extern _IO_off64_t _IO_old_file_seekoff
__P ((_IO_FILE
*, _IO_off64_t
, int,
546 extern _IO_size_t _IO_old_file_xsputn
__P ((_IO_FILE
*, const void *,
548 extern int _IO_old_file_underflow
__P ((_IO_FILE
*));
549 extern int _IO_old_file_overflow
__P ((_IO_FILE
*, int));
550 extern void _IO_old_file_init
__P ((struct _IO_FILE_plus
*));
551 extern _IO_FILE
* _IO_old_file_attach
__P ((_IO_FILE
*, int));
552 extern _IO_FILE
* _IO_old_file_fopen
__P ((_IO_FILE
*, const char *,
554 extern _IO_ssize_t _IO_old_file_write
__P ((_IO_FILE
*, const void *,
556 extern int _IO_old_file_sync
__P ((_IO_FILE
*));
557 extern int _IO_old_file_close_it
__P ((_IO_FILE
*));
558 extern void _IO_old_file_finish
__P ((_IO_FILE
*, int));
560 extern int _IO_wfile_doallocate
__P ((_IO_FILE
*));
561 extern _IO_size_t _IO_wfile_xsputn
__P ((_IO_FILE
*, const void *,
563 extern _IO_FILE
* _IO_wfile_setbuf
__P ((_IO_FILE
*, wchar_t *, _IO_ssize_t
));
564 extern wint_t _IO_wfile_sync
__P ((_IO_FILE
*));
565 extern wint_t _IO_wfile_underflow
__P ((_IO_FILE
*));
566 extern wint_t _IO_wfile_overflow
__P ((_IO_FILE
*, wint_t));
567 extern _IO_off64_t _IO_wfile_seekoff
__P ((_IO_FILE
*, _IO_off64_t
, int, int));
569 /* Jumptable functions for proc_files. */
570 extern _IO_FILE
* _IO_proc_open
__P ((_IO_FILE
*, const char *, const char *));
571 extern _IO_FILE
* _IO_new_proc_open
__P ((_IO_FILE
*, const char *, const char *));
572 extern _IO_FILE
* _IO_old_proc_open
__P ((_IO_FILE
*, const char *, const char *));
573 extern int _IO_proc_close
__P ((_IO_FILE
*));
574 extern int _IO_new_proc_close
__P ((_IO_FILE
*));
575 extern int _IO_old_proc_close
__P ((_IO_FILE
*));
577 /* Jumptable functions for strfiles. */
578 extern int _IO_str_underflow
__P ((_IO_FILE
*));
579 extern int _IO_str_overflow
__P ((_IO_FILE
*, int));
580 extern int _IO_str_pbackfail
__P ((_IO_FILE
*, int));
581 extern _IO_off64_t _IO_str_seekoff
__P ((_IO_FILE
*, _IO_off64_t
, int, int));
582 extern void _IO_str_finish
__P ((_IO_FILE
*, int));
584 /* Other strfile functions */
586 extern void _IO_str_init_static
__P ((struct _IO_strfile_
*, char *, int, char *));
587 extern void _IO_str_init_readonly
__P ((struct _IO_strfile_
*, const char *, int));
588 extern _IO_ssize_t _IO_str_count
__P ((_IO_FILE
*));
590 /* And the wide character versions. */
591 extern void _IO_wstr_init_static
__P ((_IO_FILE
*, wchar_t *, int, wchar_t *));
592 extern void _IO_wstr_init_readonly
__P ((_IO_FILE
*, const char *, int));
593 extern _IO_ssize_t _IO_wstr_count
__P ((_IO_FILE
*));
594 extern _IO_wint_t _IO_wstr_overflow
__P ((_IO_FILE
*, _IO_wint_t
));
595 extern _IO_wint_t _IO_wstr_underflow
__P ((_IO_FILE
*));
596 extern _IO_off64_t _IO_wstr_seekoff
__P ((_IO_FILE
*, _IO_off64_t
, int, int));
597 extern _IO_wint_t _IO_wstr_pbackfail
__P ((_IO_FILE
*, _IO_wint_t
));
598 extern void _IO_wstr_finish
__P ((_IO_FILE
*, int));
600 extern int _IO_vasprintf
__P ((char **result_ptr
, __const
char *format
,
602 extern int _IO_vdprintf
__P ((int d
, __const
char *format
, _IO_va_list arg
));
603 extern int _IO_vsnprintf
__P ((char *string
, _IO_size_t maxlen
,
604 __const
char *format
, _IO_va_list args
));
607 extern _IO_size_t _IO_getline
__P ((_IO_FILE
*,char *, _IO_size_t
, int, int));
608 extern _IO_size_t _IO_getline_info
__P ((_IO_FILE
*,char *, _IO_size_t
,
610 extern _IO_ssize_t _IO_getdelim
__P ((char **, _IO_size_t
*, int, _IO_FILE
*));
611 extern _IO_size_t _IO_getwline
__P ((_IO_FILE
*,wchar_t *, _IO_size_t
, wint_t,
613 extern _IO_size_t _IO_getwline_info
__P ((_IO_FILE
*,wchar_t *, _IO_size_t
,
614 wint_t, int, wint_t *));
615 extern double _IO_strtod
__P ((const char *, char **));
616 extern char *_IO_dtoa
__P ((double __d
, int __mode
, int __ndigits
,
617 int *__decpt
, int *__sign
, char **__rve
));
618 extern int _IO_outfloat
__P ((double __value
, _IO_FILE
*__sb
, int __type
,
619 int __width
, int __precision
, int __flags
,
620 int __sign_mode
, int __fill
));
622 extern struct _IO_FILE_plus
*_IO_list_all
;
623 extern void (*_IO_cleanup_registration_needed
) __PMT ((void));
625 /* Prototype for functions with alternative entry point. */
626 extern int _IO_flush_all_internal
__P ((void));
627 extern unsigned _IO_adjust_column_internal
__P ((unsigned, const char *, int));
629 extern int _IO_default_uflow_internal
__P ((_IO_FILE
*));
630 extern void _IO_default_finish_internal
__P ((_IO_FILE
*, int));
631 extern int _IO_default_pbackfail_internal
__P ((_IO_FILE
*, int));
632 extern _IO_size_t _IO_default_xsputn_internal
__P ((_IO_FILE
*, const void *,
634 extern _IO_size_t _IO_default_xsgetn_internal
__P ((_IO_FILE
*, void *,
636 extern int _IO_default_doallocate_internal
__P ((_IO_FILE
*));
637 extern void _IO_wdefault_finish_internal
__P ((_IO_FILE
*, int));
638 extern wint_t _IO_wdefault_pbackfail_internal
__P ((_IO_FILE
*, wint_t));
639 extern _IO_size_t _IO_wdefault_xsputn_internal
__P ((_IO_FILE
*, const void *,
641 extern _IO_size_t _IO_wdefault_xsgetn_internal
__P ((_IO_FILE
*, void *,
643 extern _IO_FILE
* _IO_wdefault_setbuf_internal
__P ((_IO_FILE
*, wchar_t *,
645 extern int _IO_wdefault_doallocate_internal
__P ((_IO_FILE
*));
646 extern wint_t _IO_wdefault_uflow_internal
__P ((_IO_FILE
*));
648 extern int _IO_file_doallocate_internal
__P ((_IO_FILE
*));
649 extern _IO_FILE
* _IO_file_setbuf_internal
__P ((_IO_FILE
*, char *,
651 extern _IO_off64_t _IO_file_seekoff_internal
__P ((_IO_FILE
*, _IO_off64_t
,
653 extern _IO_size_t _IO_file_xsputn_internal
__P ((_IO_FILE
*, const void *,
655 extern _IO_size_t _IO_file_xsgetn_internal
__P ((_IO_FILE
*, void *,
657 extern int _IO_file_stat_internal
__P ((_IO_FILE
*, void *));
658 extern int _IO_file_close_internal
__P ((_IO_FILE
*));
659 extern int _IO_file_close_it_internal
__P ((_IO_FILE
*));
660 extern int _IO_file_underflow_internal
__P ((_IO_FILE
*));
661 extern int _IO_file_overflow_internal
__P ((_IO_FILE
*, int));
662 extern void _IO_file_init_internal
__P ((struct _IO_FILE_plus
*));
663 extern _IO_FILE
* _IO_file_attach_internal
__P ((_IO_FILE
*, int));
664 extern _IO_FILE
* _IO_file_fopen_internal
__P ((_IO_FILE
*, const char *,
666 extern _IO_ssize_t _IO_file_read_internal
__P ((_IO_FILE
*, void *,
668 extern int _IO_file_sync_internal
__P ((_IO_FILE
*));
669 extern _IO_off64_t _IO_file_seek_internal
__P ((_IO_FILE
*, _IO_off64_t
, int));
670 extern void _IO_file_finish_internal
__P ((_IO_FILE
*, int));
672 extern _IO_size_t _IO_wfile_xsputn_internal
__P ((_IO_FILE
*, const void *,
674 extern _IO_off64_t _IO_wfile_seekoff_internal
__P ((_IO_FILE
*, _IO_off64_t
,
676 extern wint_t _IO_wfile_sync_internal
__P ((_IO_FILE
*));
678 extern int _IO_str_underflow_internal
__P ((_IO_FILE
*));
679 extern int _IO_str_overflow_internal
__P ((_IO_FILE
*, int));
680 extern int _IO_str_pbackfail_internal
__P ((_IO_FILE
*, int));
681 extern _IO_off64_t _IO_str_seekoff_internal
__P ((_IO_FILE
*, _IO_off64_t
,
683 extern void _IO_str_init_static_internal
__P ((struct _IO_strfile_
*, char *,
686 extern struct _IO_jump_t _IO_file_jumps_internal attribute_hidden
;
687 extern struct _IO_jump_t _IO_wfile_jumps_internal attribute_hidden
;
689 extern struct _IO_FILE_plus
*_IO_list_all_internal attribute_hidden
;
691 extern void _IO_link_in_internal
__P ((struct _IO_FILE_plus
*));
692 extern int _IO_sputbackc_internal
__P ((_IO_FILE
*, int));
693 extern void _IO_wdoallocbuf_internal
__P ((_IO_FILE
*));
695 extern _IO_size_t
_IO_sgetn_internal (_IO_FILE
*, void *, _IO_size_t
);
696 extern void _IO_flush_all_linebuffered_internal
__P ((void));
697 extern int _IO_switch_to_wget_mode_internal
__P ((_IO_FILE
*));
698 extern void _IO_unsave_markers_internal
__P ((_IO_FILE
*));
699 extern void _IO_switch_to_main_wget_area_internal
__P ((_IO_FILE
*));
700 extern int _IO_wdo_write_internal
__P ((_IO_FILE
*, const wchar_t *,
702 extern int _IO_do_write_internal
__P ((_IO_FILE
*, const char *, _IO_size_t
));
703 extern _IO_ssize_t
_IO_padn_internal (_IO_FILE
*, int, _IO_ssize_t
);
704 extern _IO_size_t _IO_getline_info_internal
__P ((_IO_FILE
*,char *,
705 _IO_size_t
, int, int,
707 extern _IO_size_t _IO_getline_internal
__P ((_IO_FILE
*, char *, _IO_size_t
,
709 extern void _IO_free_wbackup_area_internal (_IO_FILE
*);
710 extern void _IO_free_backup_area_internal (_IO_FILE
*);
711 extern void _IO_switch_to_wbackup_area_internal
__P ((_IO_FILE
*));
712 extern void _IO_setb_internal
__P ((_IO_FILE
*, char *, char *, int));
713 extern wint_t _IO_sputbackwc_internal
__P ((_IO_FILE
*, wint_t));
714 extern int _IO_switch_to_get_mode_internal
__P ((_IO_FILE
*));
715 extern int _IO_vfscanf_internal (_IO_FILE
* __restrict
,
716 const char * __restrict
,
717 _IO_va_list
, int *__restrict
);
718 extern int _IO_vfprintf_internal (_IO_FILE
*__restrict
, const char *__restrict
,
720 extern void _IO_doallocbuf_internal
__P ((_IO_FILE
*));
721 extern void _IO_wsetb_internal
__P ((_IO_FILE
*, wchar_t *, wchar_t *, int));
722 extern _IO_off64_t
_IO_seekoff_internal (_IO_FILE
*, _IO_off64_t
, int, int);
723 extern _IO_off64_t
_IO_seekpos_internal (_IO_FILE
*, _IO_off64_t
, int);
724 extern int _IO_putc_internal (int __c
, _IO_FILE
*__fp
);
725 extern void _IO_init_internal
__P ((_IO_FILE
*, int));
726 extern void _IO_un_link_internal
__P ((struct _IO_FILE_plus
*));
732 # if defined __GNUG__ && \
733 (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8))
734 # define NULL (__null)
736 # if !defined(__cplusplus)
737 # define NULL ((void*)0)
748 # include <sys/mman.h>
749 # include <sys/param.h>
751 # if !defined(MAP_ANONYMOUS) && defined(MAP_ANON)
752 # define MAP_ANONYMOUS MAP_ANON
755 # if !defined(MAP_ANONYMOUS) || !defined(EXEC_PAGESIZE)
757 # define _G_HAVE_MMAP 0
760 #endif /* _G_HAVE_MMAP */
765 /* When using this code in the GNU libc we must not pollute the name space. */
767 # define munmap __munmap
768 # define ftruncate __ftruncate
771 # define ROUND_TO_PAGE(_S) \
772 (((_S) + EXEC_PAGESIZE - 1) & ~(EXEC_PAGESIZE - 1))
774 # define FREE_BUF(_B, _S) \
775 munmap ((_B), ROUND_TO_PAGE (_S))
776 # define ALLOC_BUF(_B, _S, _R) \
778 (_B) = (char *) mmap (0, ROUND_TO_PAGE (_S), \
779 PROT_READ | PROT_WRITE, \
780 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); \
781 if ((_B) == (char *) MAP_FAILED) \
784 # define ALLOC_WBUF(_B, _S, _R) \
786 (_B) = (wchar_t *) mmap (0, ROUND_TO_PAGE (_S), \
787 PROT_READ | PROT_WRITE, \
788 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); \
789 if ((_B) == (wchar_t *) MAP_FAILED) \
793 #else /* _G_HAVE_MMAP */
795 # define FREE_BUF(_B, _S) \
797 # define ALLOC_BUF(_B, _S, _R) \
799 (_B) = (char*)malloc(_S); \
803 # define ALLOC_WBUF(_B, _S, _R) \
805 (_B) = (wchar_t *)malloc(_S); \
810 #endif /* _G_HAVE_MMAP */
813 # define OS_FSTAT fstat
816 extern _IO_ssize_t _IO_read
__P ((int, void *, _IO_size_t
));
817 extern _IO_ssize_t _IO_write
__P ((int, const void *, _IO_size_t
));
818 extern _IO_off64_t _IO_lseek
__P ((int, _IO_off64_t
, int));
819 extern int _IO_close
__P ((int));
820 extern int _IO_fstat
__P ((int, struct stat
*));
821 extern int _IO_vscanf
__P ((const char *, _IO_va_list
));
823 /* _IO_pos_BAD is an _IO_off64_t value indicating error, unknown, or EOF. */
825 # define _IO_pos_BAD ((_IO_off64_t) -1)
827 /* _IO_pos_adjust adjust an _IO_off64_t by some number of bytes. */
828 #ifndef _IO_pos_adjust
829 # define _IO_pos_adjust(pos, delta) ((pos) += (delta))
831 /* _IO_pos_0 is an _IO_off64_t value indicating beginning of file. */
833 # define _IO_pos_0 ((_IO_off64_t) 0)
841 /* check following! */
842 # ifdef _IO_USE_OLD_IO_FILE
843 # define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
844 { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
845 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
846 0, _IO_pos_BAD, 0, 0, { 0 }, &_IO_stdfile_##FD##_lock }
848 # if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
849 # define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
850 { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
851 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
852 0, _IO_pos_BAD, 0, 0, { 0 }, &_IO_stdfile_##FD##_lock, _IO_pos_BAD,\
855 # define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
856 { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
857 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
858 0, _IO_pos_BAD, 0, 0, { 0 }, &_IO_stdfile_##FD##_lock, _IO_pos_BAD,\
863 # ifdef _IO_USE_OLD_IO_FILE
864 # define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
865 { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
866 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
869 # if defined _LIBC || defined _GLIBCPP_USE_WCHAR_T
870 # define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
871 { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
872 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
873 0, _IO_pos_BAD, 0, 0, { 0 }, 0, _IO_pos_BAD, \
876 # define FILEBUF_LITERAL(CHAIN, FLAGS, FD, WDP) \
877 { _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
878 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, (_IO_FILE *) CHAIN, FD, \
879 0, _IO_pos_BAD, 0, 0, { 0 }, 0, _IO_pos_BAD, \
885 /* VTABLE_LABEL defines NAME as of the CLASS class.
886 CNLENGTH is strlen(#CLASS). */
888 # if _G_VTABLE_LABEL_HAS_LENGTH
889 # define VTABLE_LABEL(NAME, CLASS, CNLENGTH) \
890 extern char NAME[] asm (_G_VTABLE_LABEL_PREFIX #CNLENGTH #CLASS);
892 # define VTABLE_LABEL(NAME, CLASS, CNLENGTH) \
893 extern char NAME[] asm (_G_VTABLE_LABEL_PREFIX #CLASS);
895 #endif /* __GNUC__ */
897 #if !defined(builtinbuf_vtable) && defined(__cplusplus)
899 VTABLE_LABEL(builtinbuf_vtable
, builtinbuf
, 10)
901 # if _G_VTABLE_LABEL_HAS_LENGTH
902 # define builtinbuf_vtable _G_VTABLE_LABEL_PREFIX_ID##10builtinbuf
904 # define builtinbuf_vtable _G_VTABLE_LABEL_PREFIX_ID##builtinbuf
907 #endif /* !defined(builtinbuf_vtable) && defined(__cplusplus) */
909 #if defined(__STDC__) || defined(__cplusplus)
910 # define _IO_va_start(args, last) va_start(args, last)
912 # define _IO_va_start(args, last) va_start(args)
915 extern struct _IO_fake_stdiobuf _IO_stdin_buf
, _IO_stdout_buf
, _IO_stderr_buf
;
918 # define COERCE_FILE(FILE) /* Nothing */
920 /* This is part of the kludge for binary compatibility with old stdio. */
921 # define COERCE_FILE(FILE) \
922 (((FILE)->_IO_file_flags & _IO_MAGIC_MASK) == _OLD_MAGIC_MASK \
923 && (FILE) = *(FILE**)&((int*)fp)[1])
927 # define MAYBE_SET_EINVAL __set_errno (EINVAL)
929 # define MAYBE_SET_EINVAL /* nothing */
933 # define CHECK_FILE(FILE, RET) \
934 if ((FILE) == NULL) { MAYBE_SET_EINVAL; return RET; } \
935 else { COERCE_FILE(FILE); \
936 if (((FILE)->_IO_file_flags & _IO_MAGIC_MASK) != _IO_MAGIC) \
937 { MAYBE_SET_EINVAL; return RET; }}
939 # define CHECK_FILE(FILE, RET) COERCE_FILE (FILE)