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| 76ced9ad |
1 | #ifndef _PERLIO_H |
| 2 | #define _PERLIO_H |
| 3 | /* |
| 4 | Interface for perl to IO functions. |
| 5 | There is a hierachy of Configure determined #define controls: |
| 6 | USE_STDIO - forces PerlIO_xxx() to be #define-d onto stdio functions. |
| 7 | This is used for x2p subdirectory and for conservative |
| 8 | builds - "just like perl5.00X used to be". |
| 9 | This dominates over the others. |
| 10 | |
| 11 | USE_PERLIO - The primary Configure variable that enables PerlIO. |
| 12 | If USE_PERLIO is _NOT_ set |
| 13 | then USE_STDIO above will be set to be conservative. |
| 14 | If USE_PERLIO is set |
| 15 | then there are two modes determined by USE_SFIO: |
| 16 | |
| 17 | USE_SFIO - If set causes PerlIO_xxx() to be #define-d onto sfio functions. |
| 18 | A backward compatability mode for some specialist applications. |
| 19 | |
| 20 | If USE_SFIO is not set then PerlIO_xxx() are real functions |
| 21 | defined in perlio.c which implement extra functionality |
| 22 | required for utf8 support. |
| 23 | |
| 24 | One further note - the table-of-functions scheme controlled |
| 25 | by PERL_IMPLICIT_SYS turns on USE_PERLIO so that iperlsys.h can |
| 26 | #define PerlIO_xxx() to go via the function table, without having |
| 27 | to #undef them from (say) stdio forms. |
| 28 | |
| 29 | */ |
| 30 | |
| 31 | #if defined(PERL_IMPLICIT_SYS) |
| 32 | #ifndef USE_PERLIO |
| 2986a63f |
33 | #ifndef NETWARE |
| 76ced9ad |
34 | # define USE_PERLIO |
| 35 | #endif |
| 36 | #endif |
| 2986a63f |
37 | #endif |
| 76ced9ad |
38 | |
| 39 | #ifndef USE_PERLIO |
| 40 | # define USE_STDIO |
| 41 | #endif |
| 42 | |
| 43 | #ifdef USE_STDIO |
| 44 | # ifndef PERLIO_IS_STDIO |
| 45 | # define PERLIO_IS_STDIO |
| 46 | # endif |
| 47 | #endif |
| 48 | |
| 49 | /* -------------------- End of Configure controls ---------------------------- */ |
| 50 | |
| 51 | /* |
| 52 | * Although we may not want stdio to be used including <stdio.h> here |
| 53 | * avoids issues where stdio.h has strange side effects |
| 54 | */ |
| 55 | #include <stdio.h> |
| 56 | |
| 57 | #if defined(USE_64_BIT_STDIO) && defined(HAS_FTELLO) && !defined(USE_FTELL64) |
| 58 | #define ftell ftello |
| 59 | #endif |
| 60 | |
| 61 | #if defined(USE_64_BIT_STDIO) && defined(HAS_FSEEKO) && !defined(USE_FSEEK64) |
| 62 | #define fseek fseeko |
| 63 | #endif |
| 64 | |
| 6f2bd249 |
65 | /* BS2000 includes are sometimes a bit non standard :-( */ |
| 66 | #if defined(POSIX_BC) && defined(O_BINARY) && !defined(O_TEXT) |
| 67 | #undef O_BINARY |
| 68 | #endif |
| 69 | |
| 76ced9ad |
70 | #ifdef PERLIO_IS_STDIO |
| 71 | /* #define PerlIO_xxxx() as equivalent stdio function */ |
| 72 | #include "perlsdio.h" |
| 14a5cf38 |
73 | #else /* PERLIO_IS_STDIO */ |
| 76ced9ad |
74 | #ifdef USE_SFIO |
| 75 | /* #define PerlIO_xxxx() as equivalent sfio function */ |
| 76 | #include "perlsfio.h" |
| 14a5cf38 |
77 | #endif /* USE_SFIO */ |
| 78 | #endif /* PERLIO_IS_STDIO */ |
| 76ced9ad |
79 | |
| 80 | #ifndef PerlIO |
| 81 | /* ----------- PerlIO implementation ---------- */ |
| 82 | /* PerlIO not #define-d to something else - define the implementation */ |
| 83 | |
| 84 | typedef struct _PerlIO PerlIOl; |
| 85 | typedef struct _PerlIO_funcs PerlIO_funcs; |
| 86 | typedef PerlIOl *PerlIO; |
| 87 | #define PerlIO PerlIO |
| a1d180c4 |
88 | #define PERLIO_LAYERS 1 |
| 76ced9ad |
89 | |
| 14a5cf38 |
90 | extern void PerlIO_define_layer(pTHX_ PerlIO_funcs *tab); |
| 91 | extern PerlIO_funcs *PerlIO_find_layer(pTHX_ const char *name, STRLEN len, |
| 92 | int load); |
| 93 | extern PerlIO *PerlIO_push(pTHX_ PerlIO *f, PerlIO_funcs *tab, |
| 94 | const char *mode, SV *arg); |
| 95 | extern void PerlIO_pop(pTHX_ PerlIO *f); |
| 76ced9ad |
96 | |
| 14a5cf38 |
97 | #endif /* PerlIO */ |
| 76ced9ad |
98 | |
| 99 | /* ----------- End of implementation choices ---------- */ |
| 100 | |
| 101 | #ifndef PERLIO_IS_STDIO |
| 102 | /* Not using stdio _directly_ as PerlIO */ |
| 103 | |
| 104 | /* We now need to determine what happens if source trys to use stdio. |
| 105 | * There are three cases based on PERLIO_NOT_STDIO which XS code |
| 106 | * can set how it wants. |
| 107 | */ |
| 108 | |
| 109 | #ifdef PERL_CORE |
| 110 | /* Make a choice for perl core code |
| 111 | - currently this is set to try and catch lingering raw stdio calls. |
| 112 | This is a known issue with some non UNIX ports which still use |
| 113 | "native" stdio features. |
| 114 | */ |
| 115 | #ifndef PERLIO_NOT_STDIO |
| 116 | #define PERLIO_NOT_STDIO 1 |
| 117 | #endif |
| f7e7eb72 |
118 | #else |
| 119 | #ifndef PERLIO_NOT_STDIO |
| 120 | #define PERLIO_NOT_STDIO 0 |
| 121 | #endif |
| 76ced9ad |
122 | #endif |
| 123 | |
| 124 | #ifdef PERLIO_NOT_STDIO |
| 125 | #if PERLIO_NOT_STDIO |
| 126 | /* |
| 127 | * PERLIO_NOT_STDIO #define'd as 1 |
| 128 | * Case 1: Strong denial of stdio - make all stdio calls (we can think of) errors |
| 129 | */ |
| 130 | #include "nostdio.h" |
| 14a5cf38 |
131 | #else /* if PERLIO_NOT_STDIO */ |
| 76ced9ad |
132 | /* |
| 133 | * PERLIO_NOT_STDIO #define'd as 0 |
| 134 | * Case 2: Declares that both PerlIO and stdio can be used |
| 135 | */ |
| 14a5cf38 |
136 | #endif /* if PERLIO_NOT_STDIO */ |
| 137 | #else /* ifdef PERLIO_NOT_STDIO */ |
| 76ced9ad |
138 | /* |
| 139 | * PERLIO_NOT_STDIO not defined |
| 140 | * Case 3: Try and fake stdio calls as PerlIO calls |
| 141 | */ |
| 142 | #include "fakesdio.h" |
| 14a5cf38 |
143 | #endif /* ifndef PERLIO_NOT_STDIO */ |
| 144 | #endif /* PERLIO_IS_STDIO */ |
| 76ced9ad |
145 | |
| ac27b0f5 |
146 | #define specialCopIO(sv) ((sv) != Nullsv) |
| 147 | |
| 76ced9ad |
148 | /* ----------- fill in things that have not got #define'd ---------- */ |
| 149 | |
| 150 | #ifndef Fpos_t |
| 151 | #define Fpos_t Off_t |
| 152 | #endif |
| 153 | |
| 154 | #ifndef EOF |
| 155 | #define EOF (-1) |
| 156 | #endif |
| 157 | |
| 158 | /* This is to catch case with no stdio */ |
| 159 | #ifndef BUFSIZ |
| 160 | #define BUFSIZ 1024 |
| 161 | #endif |
| 162 | |
| 163 | #ifndef SEEK_SET |
| 164 | #define SEEK_SET 0 |
| 165 | #endif |
| 166 | |
| 167 | #ifndef SEEK_CUR |
| 168 | #define SEEK_CUR 1 |
| 169 | #endif |
| 170 | |
| 171 | #ifndef SEEK_END |
| 172 | #define SEEK_END 2 |
| 173 | #endif |
| 174 | |
| 175 | /* --------------------- Now prototypes for functions --------------- */ |
| 176 | |
| adb71456 |
177 | START_EXTERN_C |
| 76ced9ad |
178 | #ifndef NEXT30_NO_ATTRIBUTE |
| 14a5cf38 |
179 | #ifndef HASATTRIBUTE /* disable GNU-cc attribute checking? */ |
| 180 | #ifdef __attribute__ /* Avoid possible redefinition errors */ |
| 76ced9ad |
181 | #undef __attribute__ |
| 182 | #endif |
| 183 | #define __attribute__(attr) |
| 184 | #endif |
| 185 | #endif |
| 76ced9ad |
186 | #ifndef PerlIO_init |
| 14a5cf38 |
187 | extern void PerlIO_init(void); |
| 76ced9ad |
188 | #endif |
| 189 | #ifndef PerlIO_stdoutf |
| 14a5cf38 |
190 | extern int PerlIO_stdoutf(const char *, ...) |
| 191 | __attribute__ ((__format__(__printf__, 1, 2))); |
| 76ced9ad |
192 | #endif |
| 193 | #ifndef PerlIO_puts |
| 14a5cf38 |
194 | extern int PerlIO_puts(PerlIO *, const char *); |
| 76ced9ad |
195 | #endif |
| 196 | #ifndef PerlIO_open |
| 14a5cf38 |
197 | extern PerlIO *PerlIO_open(const char *, const char *); |
| 76ced9ad |
198 | #endif |
| 6e60e805 |
199 | #ifndef PerlIO_openn |
| 14a5cf38 |
200 | extern PerlIO *PerlIO_openn(pTHX_ const char *layers, const char *mode, |
| 201 | int fd, int imode, int perm, PerlIO *old, |
| 202 | int narg, SV **arg); |
| ee518936 |
203 | #endif |
| 76ced9ad |
204 | #ifndef PerlIO_close |
| 14a5cf38 |
205 | extern int PerlIO_close(PerlIO *); |
| 76ced9ad |
206 | #endif |
| 207 | #ifndef PerlIO_eof |
| 14a5cf38 |
208 | extern int PerlIO_eof(PerlIO *); |
| 76ced9ad |
209 | #endif |
| 210 | #ifndef PerlIO_error |
| 14a5cf38 |
211 | extern int PerlIO_error(PerlIO *); |
| 76ced9ad |
212 | #endif |
| 213 | #ifndef PerlIO_clearerr |
| 14a5cf38 |
214 | extern void PerlIO_clearerr(PerlIO *); |
| 76ced9ad |
215 | #endif |
| 216 | #ifndef PerlIO_getc |
| 14a5cf38 |
217 | extern int PerlIO_getc(PerlIO *); |
| 76ced9ad |
218 | #endif |
| 219 | #ifndef PerlIO_putc |
| 14a5cf38 |
220 | extern int PerlIO_putc(PerlIO *, int); |
| 76ced9ad |
221 | #endif |
| 222 | #ifndef PerlIO_flush |
| 14a5cf38 |
223 | extern int PerlIO_flush(PerlIO *); |
| 76ced9ad |
224 | #endif |
| 225 | #ifndef PerlIO_ungetc |
| 14a5cf38 |
226 | extern int PerlIO_ungetc(PerlIO *, int); |
| 76ced9ad |
227 | #endif |
| 228 | #ifndef PerlIO_fileno |
| 14a5cf38 |
229 | extern int PerlIO_fileno(PerlIO *); |
| 76ced9ad |
230 | #endif |
| 231 | #ifndef PerlIO_fdopen |
| 14a5cf38 |
232 | extern PerlIO *PerlIO_fdopen(int, const char *); |
| 76ced9ad |
233 | #endif |
| 234 | #ifndef PerlIO_importFILE |
| 14a5cf38 |
235 | extern PerlIO *PerlIO_importFILE(FILE *, int); |
| 76ced9ad |
236 | #endif |
| 237 | #ifndef PerlIO_exportFILE |
| 14a5cf38 |
238 | extern FILE *PerlIO_exportFILE(PerlIO *, int); |
| 76ced9ad |
239 | #endif |
| 240 | #ifndef PerlIO_findFILE |
| 14a5cf38 |
241 | extern FILE *PerlIO_findFILE(PerlIO *); |
| 76ced9ad |
242 | #endif |
| 243 | #ifndef PerlIO_releaseFILE |
| 14a5cf38 |
244 | extern void PerlIO_releaseFILE(PerlIO *, FILE *); |
| 76ced9ad |
245 | #endif |
| 246 | #ifndef PerlIO_read |
| 14a5cf38 |
247 | extern SSize_t PerlIO_read(PerlIO *, void *, Size_t); |
| 76ced9ad |
248 | #endif |
| a15cef0c |
249 | #ifndef PerlIO_unread |
| 14a5cf38 |
250 | extern SSize_t PerlIO_unread(PerlIO *, const void *, Size_t); |
| a15cef0c |
251 | #endif |
| 76ced9ad |
252 | #ifndef PerlIO_write |
| 14a5cf38 |
253 | extern SSize_t PerlIO_write(PerlIO *, const void *, Size_t); |
| 76ced9ad |
254 | #endif |
| 255 | #ifndef PerlIO_setlinebuf |
| 14a5cf38 |
256 | extern void PerlIO_setlinebuf(PerlIO *); |
| 76ced9ad |
257 | #endif |
| 258 | #ifndef PerlIO_printf |
| 14a5cf38 |
259 | extern int PerlIO_printf(PerlIO *, const char *, ...) |
| 260 | __attribute__ ((__format__(__printf__, 2, 3))); |
| 76ced9ad |
261 | #endif |
| 262 | #ifndef PerlIO_sprintf |
| 14a5cf38 |
263 | extern int PerlIO_sprintf(char *, int, const char *, ...) |
| 264 | __attribute__ ((__format__(__printf__, 3, 4))); |
| 76ced9ad |
265 | #endif |
| 266 | #ifndef PerlIO_vprintf |
| 14a5cf38 |
267 | extern int PerlIO_vprintf(PerlIO *, const char *, va_list); |
| 76ced9ad |
268 | #endif |
| 269 | #ifndef PerlIO_tell |
| 14a5cf38 |
270 | extern Off_t PerlIO_tell(PerlIO *); |
| 76ced9ad |
271 | #endif |
| 272 | #ifndef PerlIO_seek |
| 14a5cf38 |
273 | extern int PerlIO_seek(PerlIO *, Off_t, int); |
| 76ced9ad |
274 | #endif |
| 275 | #ifndef PerlIO_rewind |
| 14a5cf38 |
276 | extern void PerlIO_rewind(PerlIO *); |
| 76ced9ad |
277 | #endif |
| 278 | #ifndef PerlIO_has_base |
| 14a5cf38 |
279 | extern int PerlIO_has_base(PerlIO *); |
| 76ced9ad |
280 | #endif |
| 281 | #ifndef PerlIO_has_cntptr |
| 14a5cf38 |
282 | extern int PerlIO_has_cntptr(PerlIO *); |
| 76ced9ad |
283 | #endif |
| 284 | #ifndef PerlIO_fast_gets |
| 14a5cf38 |
285 | extern int PerlIO_fast_gets(PerlIO *); |
| 76ced9ad |
286 | #endif |
| 287 | #ifndef PerlIO_canset_cnt |
| 14a5cf38 |
288 | extern int PerlIO_canset_cnt(PerlIO *); |
| 76ced9ad |
289 | #endif |
| 290 | #ifndef PerlIO_get_ptr |
| 14a5cf38 |
291 | extern STDCHAR *PerlIO_get_ptr(PerlIO *); |
| 76ced9ad |
292 | #endif |
| 293 | #ifndef PerlIO_get_cnt |
| 14a5cf38 |
294 | extern int PerlIO_get_cnt(PerlIO *); |
| 76ced9ad |
295 | #endif |
| 296 | #ifndef PerlIO_set_cnt |
| 14a5cf38 |
297 | extern void PerlIO_set_cnt(PerlIO *, int); |
| 76ced9ad |
298 | #endif |
| 299 | #ifndef PerlIO_set_ptrcnt |
| 14a5cf38 |
300 | extern void PerlIO_set_ptrcnt(PerlIO *, STDCHAR *, int); |
| 76ced9ad |
301 | #endif |
| 302 | #ifndef PerlIO_get_base |
| 14a5cf38 |
303 | extern STDCHAR *PerlIO_get_base(PerlIO *); |
| 76ced9ad |
304 | #endif |
| 305 | #ifndef PerlIO_get_bufsiz |
| 14a5cf38 |
306 | extern int PerlIO_get_bufsiz(PerlIO *); |
| 76ced9ad |
307 | #endif |
| 308 | #ifndef PerlIO_tmpfile |
| 14a5cf38 |
309 | extern PerlIO *PerlIO_tmpfile(void); |
| 76ced9ad |
310 | #endif |
| 311 | #ifndef PerlIO_stdin |
| 14a5cf38 |
312 | extern PerlIO *PerlIO_stdin(void); |
| 76ced9ad |
313 | #endif |
| 314 | #ifndef PerlIO_stdout |
| 14a5cf38 |
315 | extern PerlIO *PerlIO_stdout(void); |
| 76ced9ad |
316 | #endif |
| 317 | #ifndef PerlIO_stderr |
| 14a5cf38 |
318 | extern PerlIO *PerlIO_stderr(void); |
| 76ced9ad |
319 | #endif |
| 320 | #ifndef PerlIO_getpos |
| 14a5cf38 |
321 | extern int PerlIO_getpos(PerlIO *, SV *); |
| 76ced9ad |
322 | #endif |
| 323 | #ifndef PerlIO_setpos |
| 14a5cf38 |
324 | extern int PerlIO_setpos(PerlIO *, SV *); |
| 76ced9ad |
325 | #endif |
| 326 | #ifndef PerlIO_fdupopen |
| 14a5cf38 |
327 | extern PerlIO *PerlIO_fdupopen(pTHX_ PerlIO *); |
| 5f1a76d0 |
328 | #endif |
| 11ae941d |
329 | #if !defined(PerlIO_modestr) && !defined(PERLIO_IS_STDIO) |
| 14a5cf38 |
330 | extern char *PerlIO_modestr(PerlIO *, char *buf); |
| 76ced9ad |
331 | #endif |
| 332 | #ifndef PerlIO_isutf8 |
| 14a5cf38 |
333 | extern int PerlIO_isutf8(PerlIO *); |
| 76ced9ad |
334 | #endif |
| 156e9b51 |
335 | #ifndef PerlIO_apply_layers |
| 14a5cf38 |
336 | extern int PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, |
| 337 | const char *names); |
| 60382766 |
338 | #endif |
| 339 | #ifndef PerlIO_binmode |
| 14a5cf38 |
340 | extern int PerlIO_binmode(pTHX_ PerlIO *f, int iotype, int omode, |
| 341 | const char *names); |
| ac27b0f5 |
342 | #endif |
| a15cef0c |
343 | #ifndef PerlIO_getname |
| 14a5cf38 |
344 | extern char *PerlIO_getname(PerlIO *, char *); |
| a15cef0c |
345 | #endif |
| 76ced9ad |
346 | |
| 13621cfb |
347 | extern void PerlIO_destruct(pTHX); |
| 348 | |
| 11ae941d |
349 | #ifndef PERLIO_IS_STDIO |
| 350 | |
| 64e30646 |
351 | extern void PerlIO_cleanup(void); |
| adb71456 |
352 | |
| 14a5cf38 |
353 | extern void PerlIO_debug(const char *fmt, ...); |
| 88b61e10 |
354 | |
| 11ae941d |
355 | #endif |
| 356 | |
| adb71456 |
357 | END_EXTERN_C |
| 14a5cf38 |
358 | #endif /* _PERLIO_H */ |
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