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8a0efa53 CF |
1 | /* This header file provides the reentrancy. */ |
2 | ||
3 | /* WARNING: All identifiers here must begin with an underscore. This file is | |
4 | included by stdio.h and others and we therefore must only use identifiers | |
5 | in the namespace allotted to us. */ | |
6 | ||
7 | #ifndef _SYS_REENT_H_ | |
8 | #ifdef __cplusplus | |
9 | extern "C" { | |
10 | #endif | |
11 | #define _SYS_REENT_H_ | |
12 | ||
13 | #include <_ansi.h> | |
9e2a4ef8 | 14 | #include <sys/_types.h> |
8a0efa53 | 15 | |
e5e148d1 JJ |
16 | #define _NULL 0 |
17 | ||
8a0efa53 CF |
18 | #ifndef __Long |
19 | #if __LONG_MAX__ == 2147483647L | |
20 | #define __Long long | |
21 | typedef unsigned __Long __ULong; | |
22 | #elif __INT_MAX__ == 2147483647 | |
23 | #define __Long int | |
24 | typedef unsigned __Long __ULong; | |
25 | #endif | |
26 | #endif | |
27 | ||
dee51391 | 28 | #if !defined( __Long) |
a70486d7 | 29 | #include <sys/types.h> |
dee51391 JJ |
30 | #endif |
31 | ||
32 | #ifndef __Long | |
8a0efa53 CF |
33 | #define __Long __int32_t |
34 | typedef __uint32_t __ULong; | |
35 | #endif | |
36 | ||
8195aff7 MG |
37 | /* |
38 | * If _REENT_SMALL is defined, we make struct _reent as small as possible, | |
39 | * by having nearly everything possible allocated at first use. | |
40 | */ | |
41 | ||
8a0efa53 CF |
42 | struct _Bigint |
43 | { | |
44 | struct _Bigint *_next; | |
45 | int _k, _maxwds, _sign, _wds; | |
46 | __ULong _x[1]; | |
47 | }; | |
48 | ||
9e2a4ef8 JJ |
49 | /* needed by reentrant structure */ |
50 | struct __tm | |
51 | { | |
52 | int __tm_sec; | |
53 | int __tm_min; | |
54 | int __tm_hour; | |
55 | int __tm_mday; | |
56 | int __tm_mon; | |
57 | int __tm_year; | |
58 | int __tm_wday; | |
59 | int __tm_yday; | |
60 | int __tm_isdst; | |
61 | }; | |
62 | ||
8a0efa53 | 63 | /* |
0c8593cf | 64 | * atexit() support. |
8a0efa53 CF |
65 | */ |
66 | ||
67 | #define _ATEXIT_SIZE 32 /* must be at least 32 to guarantee ANSI conformance */ | |
68 | ||
75d7d177 | 69 | struct _on_exit_args { |
0c8593cf JJ |
70 | void * _fnargs[_ATEXIT_SIZE]; /* user fn args */ |
71 | void * _dso_handle[_ATEXIT_SIZE]; | |
72 | /* Bitmask is set if user function takes arguments. */ | |
75d7d177 | 73 | __ULong _fntypes; /* type of exit routine - |
0c8593cf JJ |
74 | Must have at least _ATEXIT_SIZE bits */ |
75 | /* Bitmask is set if function was registered via __cxa_atexit. */ | |
76 | __ULong _is_cxa; | |
75d7d177 NC |
77 | }; |
78 | ||
79 | #ifdef _REENT_SMALL | |
8a0efa53 | 80 | struct _atexit { |
0c8593cf | 81 | struct _atexit *_next; /* next in list */ |
8a0efa53 CF |
82 | int _ind; /* next index in this table */ |
83 | void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ | |
75d7d177 | 84 | struct _on_exit_args * _on_exit_args_ptr; |
8a0efa53 | 85 | }; |
8195aff7 MG |
86 | #else |
87 | struct _atexit { | |
75d7d177 | 88 | struct _atexit *_next; /* next in list */ |
8195aff7 | 89 | int _ind; /* next index in this table */ |
0c8593cf | 90 | /* Some entries may already have been called, and will be NULL. */ |
8195aff7 | 91 | void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ |
75d7d177 | 92 | struct _on_exit_args _on_exit_args; |
8195aff7 MG |
93 | }; |
94 | #endif | |
8a0efa53 CF |
95 | |
96 | /* | |
97 | * Stdio buffers. | |
98 | * | |
dee51391 | 99 | * This and __FILE are defined here because we need them for struct _reent, |
8a0efa53 CF |
100 | * but we don't want stdio.h included when stdlib.h is. |
101 | */ | |
102 | ||
103 | struct __sbuf { | |
104 | unsigned char *_base; | |
105 | int _size; | |
106 | }; | |
107 | ||
108 | /* | |
109 | * We need fpos_t for the following, but it doesn't have a leading "_", | |
110 | * so we use _fpos_t instead. | |
111 | */ | |
112 | ||
113 | typedef long _fpos_t; /* XXX must match off_t in <sys/types.h> */ | |
114 | /* (and must be `long' for now) */ | |
115 | ||
dee51391 JJ |
116 | #ifdef __LARGE64_FILES |
117 | typedef _off64_t _fpos64_t; | |
118 | #endif | |
119 | ||
8a0efa53 CF |
120 | /* |
121 | * Stdio state variables. | |
122 | * | |
123 | * The following always hold: | |
124 | * | |
125 | * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR), | |
126 | * _lbfsize is -_bf._size, else _lbfsize is 0 | |
127 | * if _flags&__SRD, _w is 0 | |
128 | * if _flags&__SWR, _r is 0 | |
129 | * | |
130 | * This ensures that the getc and putc macros (or inline functions) never | |
131 | * try to write or read from a file that is in `read' or `write' mode. | |
132 | * (Moreover, they can, and do, automatically switch from read mode to | |
133 | * write mode, and back, on "r+" and "w+" files.) | |
134 | * | |
135 | * _lbfsize is used only to make the inline line-buffered output stream | |
136 | * code as compact as possible. | |
137 | * | |
138 | * _ub, _up, and _ur are used when ungetc() pushes back more characters | |
139 | * than fit in the current _bf, or when ungetc() pushes back a character | |
140 | * that does not match the previous one in _bf. When this happens, | |
141 | * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff | |
142 | * _ub._base!=NULL) and _up and _ur save the current values of _p and _r. | |
143 | */ | |
144 | ||
8195aff7 MG |
145 | #ifdef _REENT_SMALL |
146 | /* | |
147 | * struct __sFILE_fake is the start of a struct __sFILE, with only the | |
148 | * minimal fields allocated. In __sinit() we really allocate the 3 | |
149 | * standard streams, etc., and point away from this fake. | |
150 | */ | |
151 | struct __sFILE_fake { | |
152 | unsigned char *_p; /* current position in (some) buffer */ | |
153 | int _r; /* read space left for getc() */ | |
154 | int _w; /* write space left for putc() */ | |
155 | short _flags; /* flags, below; this FILE is free if 0 */ | |
156 | short _file; /* fileno, if Unix descriptor, else -1 */ | |
157 | struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ | |
158 | int _lbfsize; /* 0 or -_bf._size, for inline putc */ | |
159 | ||
160 | struct _reent *_data; | |
161 | }; | |
e5e148d1 JJ |
162 | /* CHECK_STD_INIT() comes from stdio/local.h; be sure to include that. */ |
163 | # define _REENT_SMALL_CHECK_INIT(ptr) CHECK_STD_INIT(ptr) | |
8195aff7 | 164 | #else |
1159e0fd | 165 | # define _REENT_SMALL_CHECK_INIT(ptr) /* nothing */ |
8195aff7 MG |
166 | #endif |
167 | ||
8a0efa53 CF |
168 | struct __sFILE { |
169 | unsigned char *_p; /* current position in (some) buffer */ | |
170 | int _r; /* read space left for getc() */ | |
171 | int _w; /* write space left for putc() */ | |
172 | short _flags; /* flags, below; this FILE is free if 0 */ | |
173 | short _file; /* fileno, if Unix descriptor, else -1 */ | |
174 | struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ | |
175 | int _lbfsize; /* 0 or -_bf._size, for inline putc */ | |
176 | ||
8195aff7 MG |
177 | #ifdef _REENT_SMALL |
178 | struct _reent *_data; | |
179 | #endif | |
180 | ||
8a0efa53 CF |
181 | /* operations */ |
182 | _PTR _cookie; /* cookie passed to io functions */ | |
183 | ||
cfc05d96 JJ |
184 | _READ_WRITE_RETURN_TYPE _EXFUN((*_read),(_PTR _cookie, char *_buf, int _n)); |
185 | _READ_WRITE_RETURN_TYPE _EXFUN((*_write),(_PTR _cookie, const char *_buf, | |
186 | int _n)); | |
8a0efa53 CF |
187 | _fpos_t _EXFUN((*_seek),(_PTR _cookie, _fpos_t _offset, int _whence)); |
188 | int _EXFUN((*_close),(_PTR _cookie)); | |
189 | ||
190 | /* separate buffer for long sequences of ungetc() */ | |
191 | struct __sbuf _ub; /* ungetc buffer */ | |
192 | unsigned char *_up; /* saved _p when _p is doing ungetc data */ | |
193 | int _ur; /* saved _r when _r is counting ungetc data */ | |
194 | ||
195 | /* tricks to meet minimum requirements even when malloc() fails */ | |
196 | unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ | |
197 | unsigned char _nbuf[1]; /* guarantee a getc() buffer */ | |
198 | ||
199 | /* separate buffer for fgetline() when line crosses buffer boundary */ | |
200 | struct __sbuf _lb; /* buffer for fgetline() */ | |
201 | ||
202 | /* Unix stdio files get aligned to block boundaries on fseek() */ | |
203 | int _blksize; /* stat.st_blksize (may be != _bf._size) */ | |
204 | int _offset; /* current lseek offset */ | |
205 | ||
8195aff7 | 206 | #ifndef _REENT_SMALL |
3db40db7 JJ |
207 | struct _reent *_data; /* Here for binary compatibility? Remove? */ |
208 | #endif | |
209 | ||
210 | #ifndef __SINGLE_THREAD__ | |
211 | _flock_t _lock; /* for thread-safety locking */ | |
8195aff7 | 212 | #endif |
8a0efa53 CF |
213 | }; |
214 | ||
dee51391 JJ |
215 | #ifdef __LARGE64_FILES |
216 | struct __sFILE64 { | |
217 | unsigned char *_p; /* current position in (some) buffer */ | |
218 | int _r; /* read space left for getc() */ | |
219 | int _w; /* write space left for putc() */ | |
220 | short _flags; /* flags, below; this FILE is free if 0 */ | |
221 | short _file; /* fileno, if Unix descriptor, else -1 */ | |
222 | struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */ | |
223 | int _lbfsize; /* 0 or -_bf._size, for inline putc */ | |
224 | ||
225 | struct _reent *_data; | |
226 | ||
227 | /* operations */ | |
228 | _PTR _cookie; /* cookie passed to io functions */ | |
229 | ||
230 | _READ_WRITE_RETURN_TYPE _EXFUN((*_read),(_PTR _cookie, char *_buf, int _n)); | |
231 | _READ_WRITE_RETURN_TYPE _EXFUN((*_write),(_PTR _cookie, const char *_buf, | |
232 | int _n)); | |
233 | _fpos_t _EXFUN((*_seek),(_PTR _cookie, _fpos_t _offset, int _whence)); | |
234 | int _EXFUN((*_close),(_PTR _cookie)); | |
235 | ||
236 | /* separate buffer for long sequences of ungetc() */ | |
237 | struct __sbuf _ub; /* ungetc buffer */ | |
238 | unsigned char *_up; /* saved _p when _p is doing ungetc data */ | |
239 | int _ur; /* saved _r when _r is counting ungetc data */ | |
240 | ||
241 | /* tricks to meet minimum requirements even when malloc() fails */ | |
242 | unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */ | |
243 | unsigned char _nbuf[1]; /* guarantee a getc() buffer */ | |
244 | ||
245 | /* separate buffer for fgetline() when line crosses buffer boundary */ | |
246 | struct __sbuf _lb; /* buffer for fgetline() */ | |
247 | ||
248 | /* Unix stdio files get aligned to block boundaries on fseek() */ | |
249 | int _blksize; /* stat.st_blksize (may be != _bf._size) */ | |
250 | int _flags2; /* for future use */ | |
3db40db7 | 251 | |
dee51391 JJ |
252 | _off64_t _offset; /* current lseek offset */ |
253 | _fpos64_t _EXFUN((*_seek64),(_PTR _cookie, _fpos64_t _offset, int _whence)); | |
3db40db7 JJ |
254 | |
255 | #ifndef __SINGLE_THREAD__ | |
256 | _flock_t _lock; /* for thread-safety locking */ | |
257 | #endif | |
dee51391 JJ |
258 | }; |
259 | typedef struct __sFILE64 __FILE; | |
260 | #else | |
261 | typedef struct __sFILE __FILE; | |
262 | #endif /* __LARGE64_FILES */ | |
263 | ||
264 | struct _glue | |
265 | { | |
266 | struct _glue *_next; | |
267 | int _niobs; | |
268 | __FILE *_iobs; | |
269 | }; | |
270 | ||
ab4745dc JJ |
271 | /* |
272 | * rand48 family support | |
273 | * | |
274 | * Copyright (c) 1993 Martin Birgmeier | |
275 | * All rights reserved. | |
276 | * | |
277 | * You may redistribute unmodified or modified versions of this source | |
278 | * code provided that the above copyright notice and this and the | |
279 | * following conditions are retained. | |
280 | * | |
281 | * This software is provided ``as is'', and comes with no warranties | |
282 | * of any kind. I shall in no event be liable for anything that happens | |
283 | * to anyone/anything when using this software. | |
284 | */ | |
285 | #define _RAND48_SEED_0 (0x330e) | |
286 | #define _RAND48_SEED_1 (0xabcd) | |
287 | #define _RAND48_SEED_2 (0x1234) | |
288 | #define _RAND48_MULT_0 (0xe66d) | |
289 | #define _RAND48_MULT_1 (0xdeec) | |
290 | #define _RAND48_MULT_2 (0x0005) | |
291 | #define _RAND48_ADD (0x000b) | |
292 | struct _rand48 { | |
293 | unsigned short _seed[3]; | |
294 | unsigned short _mult[3]; | |
295 | unsigned short _add; | |
8195aff7 MG |
296 | #ifdef _REENT_SMALL |
297 | /* Put this in here as well, for good luck. */ | |
298 | __extension__ unsigned long long _rand_next; | |
299 | #endif | |
ab4745dc JJ |
300 | }; |
301 | ||
8195aff7 MG |
302 | /* How big the some arrays are. */ |
303 | #define _REENT_EMERGENCY_SIZE 25 | |
304 | #define _REENT_ASCTIME_SIZE 26 | |
39e65e01 | 305 | #define _REENT_SIGNAL_SIZE 24 |
8195aff7 | 306 | |
8a0efa53 CF |
307 | /* |
308 | * struct _reent | |
309 | * | |
310 | * This structure contains *all* globals needed by the library. | |
311 | * It's raison d'etre is to facilitate threads by making all library routines | |
312 | * reentrant. IE: All state information is contained here. | |
313 | */ | |
314 | ||
8195aff7 MG |
315 | #ifdef _REENT_SMALL |
316 | ||
317 | struct _mprec | |
318 | { | |
319 | /* used by mprec routines */ | |
320 | struct _Bigint *_result; | |
321 | int _result_k; | |
322 | struct _Bigint *_p5s; | |
323 | struct _Bigint **_freelist; | |
324 | }; | |
325 | ||
d4dca0e4 JJ |
326 | |
327 | struct _misc_reent | |
328 | { | |
329 | /* miscellaneous reentrant data */ | |
330 | char *_strtok_last; | |
8d9112f2 TF |
331 | _mbstate_t _mblen_state; |
332 | _mbstate_t _wctomb_state; | |
333 | _mbstate_t _mbtowc_state; | |
c33c3635 | 334 | char _l64a_buf[8]; |
35728d4f | 335 | int _getdate_err; |
9c64d2a7 JJ |
336 | _mbstate_t _mbrlen_state; |
337 | _mbstate_t _mbrtowc_state; | |
338 | _mbstate_t _mbsrtowcs_state; | |
339 | _mbstate_t _wcrtomb_state; | |
340 | _mbstate_t _wcsrtombs_state; | |
d4dca0e4 JJ |
341 | }; |
342 | ||
8195aff7 MG |
343 | /* This version of _reent is layed our with "int"s in pairs, to help |
344 | * ports with 16-bit int's but 32-bit pointers, align nicely. */ | |
345 | struct _reent | |
346 | { | |
347 | ||
348 | /* FILE is a big struct and may change over time. To try to achieve binary | |
349 | compatibility with future versions, put stdin,stdout,stderr here. | |
350 | These are pointers into member __sf defined below. */ | |
dee51391 | 351 | __FILE *_stdin, *_stdout, *_stderr; /* XXX */ |
8195aff7 MG |
352 | |
353 | int _errno; /* local copy of errno */ | |
354 | ||
355 | int _inc; /* used by tmpnam */ | |
356 | ||
357 | char *_emergency; | |
358 | ||
359 | int __sdidinit; /* 1 means stdio has been init'd */ | |
360 | ||
361 | int _current_category; /* used by setlocale */ | |
362 | _CONST char *_current_locale; | |
363 | ||
364 | struct _mprec *_mp; | |
365 | ||
366 | void _EXFUN((*__cleanup),(struct _reent *)); | |
367 | ||
368 | int _gamma_signgam; | |
369 | ||
370 | /* used by some fp conversion routines */ | |
371 | int _cvtlen; /* should be size_t */ | |
372 | char *_cvtbuf; | |
373 | ||
374 | struct _rand48 *_r48; | |
375 | struct __tm *_localtime_buf; | |
376 | char *_asctime_buf; | |
377 | ||
378 | /* signal info */ | |
379 | void (**(_sig_func))(int); | |
380 | ||
381 | /* atexit stuff */ | |
0c8593cf JJ |
382 | struct _atexit *_atexit; |
383 | struct _atexit _atexit0; | |
8195aff7 MG |
384 | |
385 | struct _glue __sglue; /* root of glue chain */ | |
dee51391 | 386 | __FILE *__sf; /* file descriptors */ |
d4dca0e4 | 387 | struct _misc_reent *_misc; /* strtok, multibyte states */ |
39e65e01 | 388 | char *_signal_buf; /* strsignal */ |
8195aff7 MG |
389 | }; |
390 | ||
e5e148d1 JJ |
391 | extern const struct __sFILE_fake __sf_fake_stdin; |
392 | extern const struct __sFILE_fake __sf_fake_stdout; | |
393 | extern const struct __sFILE_fake __sf_fake_stderr; | |
394 | ||
8195aff7 | 395 | #define _REENT_INIT(var) \ |
e5e148d1 JJ |
396 | { (__FILE *)&__sf_fake_stdin, \ |
397 | (__FILE *)&__sf_fake_stdout, \ | |
398 | (__FILE *)&__sf_fake_stderr, \ | |
d0bd3e6f JJ |
399 | 0, \ |
400 | 0, \ | |
401 | _NULL, \ | |
402 | 0, \ | |
403 | 0, \ | |
404 | "C", \ | |
405 | _NULL, \ | |
406 | _NULL, \ | |
407 | 0, \ | |
408 | 0, \ | |
409 | _NULL, \ | |
410 | _NULL, \ | |
411 | _NULL, \ | |
412 | _NULL, \ | |
413 | _NULL, \ | |
0c8593cf JJ |
414 | _NULL, \ |
415 | {_NULL, 0, {_NULL}, _NULL}, \ | |
d0bd3e6f JJ |
416 | {_NULL, 0, _NULL}, \ |
417 | _NULL, \ | |
d0bd3e6f JJ |
418 | _NULL, \ |
419 | _NULL \ | |
420 | } | |
d4dca0e4 JJ |
421 | |
422 | #define _REENT_INIT_PTR(var) \ | |
e5e148d1 JJ |
423 | { var->_stdin = (__FILE *)&__sf_fake_stdin; \ |
424 | var->_stdout = (__FILE *)&__sf_fake_stdout; \ | |
425 | var->_stderr = (__FILE *)&__sf_fake_stderr; \ | |
d4dca0e4 JJ |
426 | var->_errno = 0; \ |
427 | var->_inc = 0; \ | |
428 | var->_emergency = _NULL; \ | |
429 | var->__sdidinit = 0; \ | |
430 | var->_current_category = 0; \ | |
431 | var->_current_locale = "C"; \ | |
432 | var->_mp = _NULL; \ | |
433 | var->__cleanup = _NULL; \ | |
434 | var->_gamma_signgam = 0; \ | |
435 | var->_cvtlen = 0; \ | |
436 | var->_cvtbuf = _NULL; \ | |
437 | var->_r48 = _NULL; \ | |
438 | var->_localtime_buf = _NULL; \ | |
439 | var->_asctime_buf = _NULL; \ | |
4608280d | 440 | var->_sig_func = _NULL; \ |
0c8593cf JJ |
441 | var->_atexit = _NULL; \ |
442 | var->_atexit0._next = _NULL; \ | |
443 | var->_atexit0._ind = 0; \ | |
444 | var->_atexit0._fns[0] = _NULL; \ | |
445 | var->_atexit0._on_exit_args_ptr = _NULL; \ | |
d4dca0e4 JJ |
446 | var->__sglue._next = _NULL; \ |
447 | var->__sglue._niobs = 0; \ | |
448 | var->__sglue._iobs = _NULL; \ | |
449 | var->__sf = 0; \ | |
d0bd3e6f JJ |
450 | var->_misc = _NULL; \ |
451 | var->_signal_buf = _NULL; \ | |
d4dca0e4 | 452 | } |
8195aff7 MG |
453 | |
454 | /* Only built the assert() calls if we are built with debugging. */ | |
455 | #if DEBUG | |
456 | #include <assert.h> | |
e83c3d0a | 457 | #define __reent_assert(x) assert(x) |
8195aff7 | 458 | #else |
e83c3d0a | 459 | #define __reent_assert(x) ((void)0) |
8195aff7 MG |
460 | #endif |
461 | ||
462 | /* Generic _REENT check macro. */ | |
463 | #define _REENT_CHECK(var, what, type, size, init) do { \ | |
464 | struct _reent *_r = (var); \ | |
465 | if (_r->what == NULL) { \ | |
466 | _r->what = (type)malloc(size); \ | |
e83c3d0a | 467 | __reent_assert(_r->what); \ |
8195aff7 MG |
468 | init; \ |
469 | } \ | |
470 | } while (0) | |
471 | ||
472 | #define _REENT_CHECK_TM(var) \ | |
473 | _REENT_CHECK(var, _localtime_buf, struct __tm *, sizeof *((var)->_localtime_buf), \ | |
474 | /* nothing */) | |
475 | ||
476 | #define _REENT_CHECK_ASCTIME_BUF(var) \ | |
477 | _REENT_CHECK(var, _asctime_buf, char *, _REENT_ASCTIME_SIZE, \ | |
478 | memset((var)->_asctime_buf, 0, _REENT_ASCTIME_SIZE)) | |
479 | ||
480 | /* Handle the dynamically allocated rand48 structure. */ | |
481 | #define _REENT_INIT_RAND48(var) do { \ | |
482 | struct _reent *_r = (var); \ | |
483 | _r->_r48->_seed[0] = _RAND48_SEED_0; \ | |
484 | _r->_r48->_seed[1] = _RAND48_SEED_1; \ | |
485 | _r->_r48->_seed[2] = _RAND48_SEED_2; \ | |
486 | _r->_r48->_mult[0] = _RAND48_MULT_0; \ | |
487 | _r->_r48->_mult[1] = _RAND48_MULT_1; \ | |
488 | _r->_r48->_mult[2] = _RAND48_MULT_2; \ | |
489 | _r->_r48->_add = _RAND48_ADD; \ | |
490 | } while (0) | |
491 | #define _REENT_CHECK_RAND48(var) \ | |
492 | _REENT_CHECK(var, _r48, struct _rand48 *, sizeof *((var)->_r48), _REENT_INIT_RAND48((var))) | |
493 | ||
494 | #define _REENT_INIT_MP(var) do { \ | |
495 | struct _reent *_r = (var); \ | |
496 | _r->_mp->_result_k = 0; \ | |
497 | _r->_mp->_result = _r->_mp->_p5s = _NULL; \ | |
498 | _r->_mp->_freelist = _NULL; \ | |
499 | } while (0) | |
500 | #define _REENT_CHECK_MP(var) \ | |
501 | _REENT_CHECK(var, _mp, struct _mprec *, sizeof *((var)->_mp), _REENT_INIT_MP(var)) | |
502 | ||
503 | #define _REENT_CHECK_EMERGENCY(var) \ | |
82b3ac56 | 504 | _REENT_CHECK(var, _emergency, char *, _REENT_EMERGENCY_SIZE, /* nothing */) |
8195aff7 | 505 | |
d4dca0e4 JJ |
506 | #define _REENT_INIT_MISC(var) do { \ |
507 | struct _reent *_r = (var); \ | |
508 | _r->_misc->_strtok_last = _NULL; \ | |
8d9112f2 TF |
509 | _r->_misc->_mblen_state.__count = 0; \ |
510 | _r->_misc->_mblen_state.__value.__wch = 0; \ | |
511 | _r->_misc->_wctomb_state.__count = 0; \ | |
512 | _r->_misc->_wctomb_state.__value.__wch = 0; \ | |
513 | _r->_misc->_mbtowc_state.__count = 0; \ | |
514 | _r->_misc->_mbtowc_state.__value.__wch = 0; \ | |
9c64d2a7 JJ |
515 | _r->_misc->_mbrlen_state.__count = 0; \ |
516 | _r->_misc->_mbrlen_state.__value.__wch = 0; \ | |
517 | _r->_misc->_mbrtowc_state.__count = 0; \ | |
518 | _r->_misc->_mbrtowc_state.__value.__wch = 0; \ | |
519 | _r->_misc->_mbsrtowcs_state.__count = 0; \ | |
520 | _r->_misc->_mbsrtowcs_state.__value.__wch = 0; \ | |
521 | _r->_misc->_wcrtomb_state.__count = 0; \ | |
522 | _r->_misc->_wcrtomb_state.__value.__wch = 0; \ | |
523 | _r->_misc->_wcsrtombs_state.__count = 0; \ | |
524 | _r->_misc->_wcsrtombs_state.__value.__wch = 0; \ | |
c33c3635 | 525 | _r->_misc->_l64a_buf[0] = '\0'; \ |
35728d4f | 526 | _r->_misc->_getdate_err = 0; \ |
d4dca0e4 JJ |
527 | } while (0) |
528 | #define _REENT_CHECK_MISC(var) \ | |
529 | _REENT_CHECK(var, _misc, struct _misc_reent *, sizeof *((var)->_misc), _REENT_INIT_MISC(var)) | |
530 | ||
39e65e01 JJ |
531 | #define _REENT_CHECK_SIGNAL_BUF(var) \ |
532 | _REENT_CHECK(var, _signal_buf, char *, _REENT_SIGNAL_SIZE, /* nothing */) | |
533 | ||
8195aff7 MG |
534 | #define _REENT_SIGNGAM(ptr) ((ptr)->_gamma_signgam) |
535 | #define _REENT_RAND_NEXT(ptr) ((ptr)->_r48->_rand_next) | |
536 | #define _REENT_RAND48_SEED(ptr) ((ptr)->_r48->_seed) | |
537 | #define _REENT_RAND48_MULT(ptr) ((ptr)->_r48->_mult) | |
538 | #define _REENT_RAND48_ADD(ptr) ((ptr)->_r48->_add) | |
539 | #define _REENT_MP_RESULT(ptr) ((ptr)->_mp->_result) | |
540 | #define _REENT_MP_RESULT_K(ptr) ((ptr)->_mp->_result_k) | |
541 | #define _REENT_MP_P5S(ptr) ((ptr)->_mp->_p5s) | |
542 | #define _REENT_MP_FREELIST(ptr) ((ptr)->_mp->_freelist) | |
543 | #define _REENT_ASCTIME_BUF(ptr) ((ptr)->_asctime_buf) | |
544 | #define _REENT_TM(ptr) ((ptr)->_localtime_buf) | |
545 | #define _REENT_EMERGENCY(ptr) ((ptr)->_emergency) | |
d4dca0e4 JJ |
546 | #define _REENT_STRTOK_LAST(ptr) ((ptr)->_misc->_strtok_last) |
547 | #define _REENT_MBLEN_STATE(ptr) ((ptr)->_misc->_mblen_state) | |
548 | #define _REENT_MBTOWC_STATE(ptr)((ptr)->_misc->_mbtowc_state) | |
549 | #define _REENT_WCTOMB_STATE(ptr)((ptr)->_misc->_wctomb_state) | |
9c64d2a7 JJ |
550 | #define _REENT_MBRLEN_STATE(ptr) ((ptr)->_misc->_mbrlen_state) |
551 | #define _REENT_MBRTOWC_STATE(ptr) ((ptr)->_misc->_mbrtowc_state) | |
552 | #define _REENT_MBSRTOWCS_STATE(ptr) ((ptr)->_misc->_mbsrtowcs_state) | |
553 | #define _REENT_WCRTOMB_STATE(ptr) ((ptr)->_misc->_wcrtomb_state) | |
554 | #define _REENT_WCSRTOMBS_STATE(ptr) ((ptr)->_misc->_wcsrtombs_state) | |
c33c3635 | 555 | #define _REENT_L64A_BUF(ptr) ((ptr)->_misc->_l64a_buf) |
35728d4f | 556 | #define _REENT_GETDATE_ERR_P(ptr) (&((ptr)->_misc->_getdate_err)) |
39e65e01 | 557 | #define _REENT_SIGNAL_BUF(ptr) ((ptr)->_signal_buf) |
8195aff7 MG |
558 | |
559 | #else /* !_REENT_SMALL */ | |
560 | ||
8a0efa53 CF |
561 | struct _reent |
562 | { | |
8195aff7 | 563 | int _errno; /* local copy of errno */ |
8a0efa53 CF |
564 | |
565 | /* FILE is a big struct and may change over time. To try to achieve binary | |
566 | compatibility with future versions, put stdin,stdout,stderr here. | |
567 | These are pointers into member __sf defined below. */ | |
dee51391 | 568 | __FILE *_stdin, *_stdout, *_stderr; |
8a0efa53 CF |
569 | |
570 | int _inc; /* used by tmpnam */ | |
8195aff7 | 571 | char _emergency[_REENT_EMERGENCY_SIZE]; |
8a0efa53 CF |
572 | |
573 | int _current_category; /* used by setlocale */ | |
574 | _CONST char *_current_locale; | |
575 | ||
576 | int __sdidinit; /* 1 means stdio has been init'd */ | |
577 | ||
578 | void _EXFUN((*__cleanup),(struct _reent *)); | |
579 | ||
580 | /* used by mprec routines */ | |
581 | struct _Bigint *_result; | |
582 | int _result_k; | |
583 | struct _Bigint *_p5s; | |
584 | struct _Bigint **_freelist; | |
585 | ||
586 | /* used by some fp conversion routines */ | |
587 | int _cvtlen; /* should be size_t */ | |
588 | char *_cvtbuf; | |
589 | ||
590 | union | |
591 | { | |
592 | struct | |
593 | { | |
46a43a99 | 594 | unsigned int _unused_rand; |
d4dca0e4 | 595 | char * _strtok_last; |
39e65e01 | 596 | char _asctime_buf[_REENT_ASCTIME_SIZE]; |
9e2a4ef8 | 597 | struct __tm _localtime_buf; |
8a0efa53 | 598 | int _gamma_signgam; |
a704d94a | 599 | __extension__ unsigned long long _rand_next; |
ab4745dc | 600 | struct _rand48 _r48; |
8d9112f2 TF |
601 | _mbstate_t _mblen_state; |
602 | _mbstate_t _mbtowc_state; | |
603 | _mbstate_t _wctomb_state; | |
c33c3635 | 604 | char _l64a_buf[8]; |
39e65e01 | 605 | char _signal_buf[_REENT_SIGNAL_SIZE]; |
35728d4f | 606 | int _getdate_err; |
9c64d2a7 JJ |
607 | _mbstate_t _mbrlen_state; |
608 | _mbstate_t _mbrtowc_state; | |
609 | _mbstate_t _mbsrtowcs_state; | |
610 | _mbstate_t _wcrtomb_state; | |
611 | _mbstate_t _wcsrtombs_state; | |
8a0efa53 CF |
612 | } _reent; |
613 | /* Two next two fields were once used by malloc. They are no longer | |
614 | used. They are used to preserve the space used before so as to | |
615 | allow addition of new reent fields and keep binary compatibility. */ | |
616 | struct | |
617 | { | |
618 | #define _N_LISTS 30 | |
619 | unsigned char * _nextf[_N_LISTS]; | |
620 | unsigned int _nmalloc[_N_LISTS]; | |
621 | } _unused; | |
622 | } _new; | |
623 | ||
624 | /* atexit stuff */ | |
625 | struct _atexit *_atexit; /* points to head of LIFO stack */ | |
626 | struct _atexit _atexit0; /* one guaranteed table, required by ANSI */ | |
627 | ||
628 | /* signal info */ | |
629 | void (**(_sig_func))(int); | |
630 | ||
dee51391 | 631 | /* These are here last so that __FILE can grow without changing the offsets |
8a0efa53 CF |
632 | of the above members (on the off chance that future binary compatibility |
633 | would be broken otherwise). */ | |
dee51391 JJ |
634 | struct _glue __sglue; /* root of glue chain */ |
635 | __FILE __sf[3]; /* first three file descriptors */ | |
8a0efa53 CF |
636 | }; |
637 | ||
638 | #define _REENT_INIT(var) \ | |
d0bd3e6f JJ |
639 | { 0, \ |
640 | &var.__sf[0], \ | |
641 | &var.__sf[1], \ | |
642 | &var.__sf[2], \ | |
643 | 0, \ | |
644 | "", \ | |
645 | 0, \ | |
646 | "C", \ | |
647 | 0, \ | |
648 | _NULL, \ | |
649 | _NULL, \ | |
650 | 0, \ | |
651 | _NULL, \ | |
652 | _NULL, \ | |
653 | 0, \ | |
654 | _NULL, \ | |
655 | { \ | |
656 | { \ | |
657 | 0, \ | |
658 | _NULL, \ | |
659 | "", \ | |
660 | {0, 0, 0, 0, 0, 0, 0, 0, 0}, \ | |
661 | 0, \ | |
662 | 1, \ | |
663 | { \ | |
664 | {_RAND48_SEED_0, _RAND48_SEED_1, _RAND48_SEED_2}, \ | |
665 | {_RAND48_MULT_0, _RAND48_MULT_1, _RAND48_MULT_2}, \ | |
666 | _RAND48_ADD \ | |
667 | }, \ | |
668 | {0, {0}}, \ | |
669 | {0, {0}}, \ | |
670 | {0, {0}}, \ | |
671 | "", \ | |
672 | "", \ | |
673 | 0, \ | |
674 | {0, {0}}, \ | |
675 | {0, {0}}, \ | |
676 | {0, {0}}, \ | |
677 | {0, {0}}, \ | |
678 | {0, {0}} \ | |
679 | } \ | |
680 | }, \ | |
681 | _NULL, \ | |
0c8593cf | 682 | {_NULL, 0, {_NULL}, {{_NULL}, {_NULL}, 0, 0}}, \ |
d0bd3e6f JJ |
683 | _NULL, \ |
684 | {_NULL, 0, _NULL} \ | |
685 | } | |
d4dca0e4 JJ |
686 | |
687 | #define _REENT_INIT_PTR(var) \ | |
d0bd3e6f | 688 | { var->_errno = 0; \ |
d4dca0e4 JJ |
689 | var->_stdin = &var->__sf[0]; \ |
690 | var->_stdout = &var->__sf[1]; \ | |
691 | var->_stderr = &var->__sf[2]; \ | |
692 | var->_inc = 0; \ | |
d0bd3e6f | 693 | memset(&var->_emergency, 0, sizeof(var->_emergency)); \ |
d4dca0e4 JJ |
694 | var->_current_category = 0; \ |
695 | var->_current_locale = "C"; \ | |
696 | var->__sdidinit = 0; \ | |
697 | var->__cleanup = _NULL; \ | |
698 | var->_result = _NULL; \ | |
699 | var->_result_k = 0; \ | |
700 | var->_p5s = _NULL; \ | |
701 | var->_freelist = _NULL; \ | |
702 | var->_cvtlen = 0; \ | |
703 | var->_cvtbuf = _NULL; \ | |
704 | var->_new._reent._unused_rand = 0; \ | |
705 | var->_new._reent._strtok_last = _NULL; \ | |
706 | var->_new._reent._asctime_buf[0] = 0; \ | |
d0bd3e6f | 707 | memset(&var->_new._reent._localtime_buf, 0, sizeof(var->_new._reent._localtime_buf)); \ |
d4dca0e4 JJ |
708 | var->_new._reent._gamma_signgam = 0; \ |
709 | var->_new._reent._rand_next = 1; \ | |
710 | var->_new._reent._r48._seed[0] = _RAND48_SEED_0; \ | |
711 | var->_new._reent._r48._seed[1] = _RAND48_SEED_1; \ | |
712 | var->_new._reent._r48._seed[2] = _RAND48_SEED_2; \ | |
713 | var->_new._reent._r48._mult[0] = _RAND48_MULT_0; \ | |
714 | var->_new._reent._r48._mult[1] = _RAND48_MULT_1; \ | |
715 | var->_new._reent._r48._mult[2] = _RAND48_MULT_2; \ | |
716 | var->_new._reent._r48._add = _RAND48_ADD; \ | |
8d9112f2 TF |
717 | var->_new._reent._mblen_state.__count = 0; \ |
718 | var->_new._reent._mblen_state.__value.__wch = 0; \ | |
719 | var->_new._reent._mbtowc_state.__count = 0; \ | |
720 | var->_new._reent._mbtowc_state.__value.__wch = 0; \ | |
721 | var->_new._reent._wctomb_state.__count = 0; \ | |
722 | var->_new._reent._wctomb_state.__value.__wch = 0; \ | |
9c64d2a7 JJ |
723 | var->_new._reent._mbrlen_state.__count = 0; \ |
724 | var->_new._reent._mbrlen_state.__value.__wch = 0; \ | |
725 | var->_new._reent._mbrtowc_state.__count = 0; \ | |
726 | var->_new._reent._mbrtowc_state.__value.__wch = 0; \ | |
727 | var->_new._reent._mbsrtowcs_state.__count = 0; \ | |
728 | var->_new._reent._mbsrtowcs_state.__value.__wch = 0; \ | |
729 | var->_new._reent._wcrtomb_state.__count = 0; \ | |
730 | var->_new._reent._wcrtomb_state.__value.__wch = 0; \ | |
731 | var->_new._reent._wcsrtombs_state.__count = 0; \ | |
732 | var->_new._reent._wcsrtombs_state.__value.__wch = 0; \ | |
c33c3635 | 733 | var->_new._reent._l64a_buf[0] = '\0'; \ |
39e65e01 | 734 | var->_new._reent._signal_buf[0] = '\0'; \ |
35728d4f | 735 | var->_new._reent._getdate_err = 0; \ |
dc824ef7 | 736 | var->_atexit = _NULL; \ |
d0bd3e6f | 737 | var->_atexit0._next = _NULL; \ |
dc824ef7 JJ |
738 | var->_atexit0._ind = 0; \ |
739 | var->_atexit0._fns[0] = _NULL; \ | |
8266e478 JJ |
740 | var->_atexit0._on_exit_args._fntypes = 0; \ |
741 | var->_atexit0._on_exit_args._fnargs[0] = _NULL; \ | |
dc824ef7 JJ |
742 | var->_sig_func = _NULL; \ |
743 | var->__sglue._next = _NULL; \ | |
744 | var->__sglue._niobs = 0; \ | |
745 | var->__sglue._iobs = _NULL; \ | |
d0bd3e6f | 746 | memset(&var->__sf, 0, sizeof(var->__sf)); \ |
d4dca0e4 | 747 | } |
8a0efa53 | 748 | |
8195aff7 MG |
749 | #define _REENT_CHECK_RAND48(ptr) /* nothing */ |
750 | #define _REENT_CHECK_MP(ptr) /* nothing */ | |
751 | #define _REENT_CHECK_TM(ptr) /* nothing */ | |
752 | #define _REENT_CHECK_ASCTIME_BUF(ptr) /* nothing */ | |
815a37f7 | 753 | #define _REENT_CHECK_EMERGENCY(ptr) /* nothing */ |
d4dca0e4 | 754 | #define _REENT_CHECK_MISC(ptr) /* nothing */ |
39e65e01 | 755 | #define _REENT_CHECK_SIGNAL_BUF(ptr) /* nothing */ |
8195aff7 MG |
756 | |
757 | #define _REENT_SIGNGAM(ptr) ((ptr)->_new._reent._gamma_signgam) | |
758 | #define _REENT_RAND_NEXT(ptr) ((ptr)->_new._reent._rand_next) | |
759 | #define _REENT_RAND48_SEED(ptr) ((ptr)->_new._reent._r48._seed) | |
760 | #define _REENT_RAND48_MULT(ptr) ((ptr)->_new._reent._r48._mult) | |
761 | #define _REENT_RAND48_ADD(ptr) ((ptr)->_new._reent._r48._add) | |
762 | #define _REENT_MP_RESULT(ptr) ((ptr)->_result) | |
763 | #define _REENT_MP_RESULT_K(ptr) ((ptr)->_result_k) | |
764 | #define _REENT_MP_P5S(ptr) ((ptr)->_p5s) | |
765 | #define _REENT_MP_FREELIST(ptr) ((ptr)->_freelist) | |
c9524c0c | 766 | #define _REENT_ASCTIME_BUF(ptr) ((ptr)->_new._reent._asctime_buf) |
8195aff7 MG |
767 | #define _REENT_TM(ptr) (&(ptr)->_new._reent._localtime_buf) |
768 | #define _REENT_EMERGENCY(ptr) ((ptr)->_emergency) | |
d4dca0e4 JJ |
769 | #define _REENT_STRTOK_LAST(ptr) ((ptr)->_new._reent._strtok_last) |
770 | #define _REENT_MBLEN_STATE(ptr) ((ptr)->_new._reent._mblen_state) | |
771 | #define _REENT_MBTOWC_STATE(ptr)((ptr)->_new._reent._mbtowc_state) | |
772 | #define _REENT_WCTOMB_STATE(ptr)((ptr)->_new._reent._wctomb_state) | |
9c64d2a7 JJ |
773 | #define _REENT_MBRLEN_STATE(ptr)((ptr)->_new._reent._mbrlen_state) |
774 | #define _REENT_MBRTOWC_STATE(ptr)((ptr)->_new._reent._mbrtowc_state) | |
775 | #define _REENT_MBSRTOWCS_STATE(ptr)((ptr)->_new._reent._mbsrtowcs_state) | |
776 | #define _REENT_WCRTOMB_STATE(ptr)((ptr)->_new._reent._wcrtomb_state) | |
777 | #define _REENT_WCSRTOMBS_STATE(ptr)((ptr)->_new._reent._wcsrtombs_state) | |
c33c3635 | 778 | #define _REENT_L64A_BUF(ptr) ((ptr)->_new._reent._l64a_buf) |
39e65e01 | 779 | #define _REENT_SIGNAL_BUF(ptr) ((ptr)->_new._reent._signal_buf) |
35728d4f | 780 | #define _REENT_GETDATE_ERR_P(ptr) (&((ptr)->_new._reent._getdate_err)) |
8195aff7 MG |
781 | |
782 | #endif /* !_REENT_SMALL */ | |
783 | ||
8a0efa53 CF |
784 | /* |
785 | * All references to struct _reent are via this pointer. | |
786 | * Internally, newlib routines that need to reference it should use _REENT. | |
787 | */ | |
788 | ||
789 | #ifndef __ATTRIBUTE_IMPURE_PTR__ | |
790 | #define __ATTRIBUTE_IMPURE_PTR__ | |
791 | #endif | |
792 | ||
793 | extern struct _reent *_impure_ptr __ATTRIBUTE_IMPURE_PTR__; | |
d0bd3e6f | 794 | extern struct _reent *_CONST _global_impure_ptr __ATTRIBUTE_IMPURE_PTR__; |
8a0efa53 CF |
795 | |
796 | void _reclaim_reent _PARAMS ((struct _reent *)); | |
797 | ||
798 | /* #define _REENT_ONLY define this to get only reentrant routines */ | |
799 | ||
800 | #ifndef _REENT_ONLY | |
5e2cbfb6 JJ |
801 | |
802 | #if defined(__DYNAMIC_REENT__) && !defined(__SINGLE_THREAD__) | |
733309f5 | 803 | #ifndef __getreent |
5e2cbfb6 | 804 | struct _reent * _EXFUN(__getreent, (void)); |
733309f5 | 805 | #endif |
5e2cbfb6 JJ |
806 | # define _REENT (__getreent()) |
807 | #else /* __SINGLE_THREAD__ || !__DYNAMIC_REENT__ */ | |
808 | # define _REENT _impure_ptr | |
809 | #endif /* __SINGLE_THREAD__ || !__DYNAMIC_REENT__ */ | |
810 | ||
d4dca0e4 | 811 | #endif /* !_REENT_ONLY */ |
8a0efa53 | 812 | |
181cb051 | 813 | #define _GLOBAL_REENT _global_impure_ptr |
9fc9e1c9 | 814 | |
8a0efa53 CF |
815 | #ifdef __cplusplus |
816 | } | |
817 | #endif | |
818 | #endif /* _SYS_REENT_H_ */ |