Commit | Line | Data |
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76ced9ad NIS |
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 NIS |
34 | # define USE_PERLIO |
35 | #endif | |
36 | #endif | |
2986a63f | 37 | #endif |
76ced9ad NIS |
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 JH |
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 NIS |
70 | #ifdef PERLIO_IS_STDIO |
71 | /* #define PerlIO_xxxx() as equivalent stdio function */ | |
72 | #include "perlsdio.h" | |
14a5cf38 | 73 | #else /* PERLIO_IS_STDIO */ |
76ced9ad NIS |
74 | #ifdef USE_SFIO |
75 | /* #define PerlIO_xxxx() as equivalent sfio function */ | |
76 | #include "perlsfio.h" | |
14a5cf38 JH |
77 | #endif /* USE_SFIO */ |
78 | #endif /* PERLIO_IS_STDIO */ | |
76ced9ad NIS |
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 JH |
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); | |
3a1ee7e8 | 96 | extern void PerlIO_clone(pTHX_ PerlInterpreter *proto, CLONE_PARAMS *param); |
76ced9ad | 97 | |
14a5cf38 | 98 | #endif /* PerlIO */ |
76ced9ad NIS |
99 | |
100 | /* ----------- End of implementation choices ---------- */ | |
101 | ||
102 | #ifndef PERLIO_IS_STDIO | |
103 | /* Not using stdio _directly_ as PerlIO */ | |
104 | ||
105 | /* We now need to determine what happens if source trys to use stdio. | |
106 | * There are three cases based on PERLIO_NOT_STDIO which XS code | |
107 | * can set how it wants. | |
108 | */ | |
109 | ||
110 | #ifdef PERL_CORE | |
111 | /* Make a choice for perl core code | |
112 | - currently this is set to try and catch lingering raw stdio calls. | |
113 | This is a known issue with some non UNIX ports which still use | |
114 | "native" stdio features. | |
115 | */ | |
116 | #ifndef PERLIO_NOT_STDIO | |
117 | #define PERLIO_NOT_STDIO 1 | |
118 | #endif | |
f7e7eb72 NIS |
119 | #else |
120 | #ifndef PERLIO_NOT_STDIO | |
121 | #define PERLIO_NOT_STDIO 0 | |
122 | #endif | |
76ced9ad NIS |
123 | #endif |
124 | ||
125 | #ifdef PERLIO_NOT_STDIO | |
126 | #if PERLIO_NOT_STDIO | |
127 | /* | |
128 | * PERLIO_NOT_STDIO #define'd as 1 | |
129 | * Case 1: Strong denial of stdio - make all stdio calls (we can think of) errors | |
130 | */ | |
131 | #include "nostdio.h" | |
14a5cf38 | 132 | #else /* if PERLIO_NOT_STDIO */ |
76ced9ad NIS |
133 | /* |
134 | * PERLIO_NOT_STDIO #define'd as 0 | |
135 | * Case 2: Declares that both PerlIO and stdio can be used | |
136 | */ | |
14a5cf38 JH |
137 | #endif /* if PERLIO_NOT_STDIO */ |
138 | #else /* ifdef PERLIO_NOT_STDIO */ | |
76ced9ad NIS |
139 | /* |
140 | * PERLIO_NOT_STDIO not defined | |
141 | * Case 3: Try and fake stdio calls as PerlIO calls | |
142 | */ | |
143 | #include "fakesdio.h" | |
14a5cf38 JH |
144 | #endif /* ifndef PERLIO_NOT_STDIO */ |
145 | #endif /* PERLIO_IS_STDIO */ | |
76ced9ad | 146 | |
ac27b0f5 NIS |
147 | #define specialCopIO(sv) ((sv) != Nullsv) |
148 | ||
76ced9ad NIS |
149 | /* ----------- fill in things that have not got #define'd ---------- */ |
150 | ||
151 | #ifndef Fpos_t | |
152 | #define Fpos_t Off_t | |
153 | #endif | |
154 | ||
155 | #ifndef EOF | |
156 | #define EOF (-1) | |
157 | #endif | |
158 | ||
159 | /* This is to catch case with no stdio */ | |
160 | #ifndef BUFSIZ | |
161 | #define BUFSIZ 1024 | |
162 | #endif | |
163 | ||
164 | #ifndef SEEK_SET | |
165 | #define SEEK_SET 0 | |
166 | #endif | |
167 | ||
168 | #ifndef SEEK_CUR | |
169 | #define SEEK_CUR 1 | |
170 | #endif | |
171 | ||
172 | #ifndef SEEK_END | |
173 | #define SEEK_END 2 | |
174 | #endif | |
175 | ||
176 | /* --------------------- Now prototypes for functions --------------- */ | |
177 | ||
adb71456 | 178 | START_EXTERN_C |
76ced9ad | 179 | #ifndef NEXT30_NO_ATTRIBUTE |
14a5cf38 JH |
180 | #ifndef HASATTRIBUTE /* disable GNU-cc attribute checking? */ |
181 | #ifdef __attribute__ /* Avoid possible redefinition errors */ | |
76ced9ad NIS |
182 | #undef __attribute__ |
183 | #endif | |
184 | #define __attribute__(attr) | |
185 | #endif | |
186 | #endif | |
76ced9ad | 187 | #ifndef PerlIO_init |
3a1ee7e8 | 188 | extern void PerlIO_init(pTHX); |
76ced9ad NIS |
189 | #endif |
190 | #ifndef PerlIO_stdoutf | |
14a5cf38 JH |
191 | extern int PerlIO_stdoutf(const char *, ...) |
192 | __attribute__ ((__format__(__printf__, 1, 2))); | |
76ced9ad NIS |
193 | #endif |
194 | #ifndef PerlIO_puts | |
14a5cf38 | 195 | extern int PerlIO_puts(PerlIO *, const char *); |
76ced9ad NIS |
196 | #endif |
197 | #ifndef PerlIO_open | |
14a5cf38 | 198 | extern PerlIO *PerlIO_open(const char *, const char *); |
76ced9ad | 199 | #endif |
6e60e805 | 200 | #ifndef PerlIO_openn |
14a5cf38 JH |
201 | extern PerlIO *PerlIO_openn(pTHX_ const char *layers, const char *mode, |
202 | int fd, int imode, int perm, PerlIO *old, | |
203 | int narg, SV **arg); | |
ee518936 | 204 | #endif |
76ced9ad | 205 | #ifndef PerlIO_close |
14a5cf38 | 206 | extern int PerlIO_close(PerlIO *); |
76ced9ad NIS |
207 | #endif |
208 | #ifndef PerlIO_eof | |
14a5cf38 | 209 | extern int PerlIO_eof(PerlIO *); |
76ced9ad NIS |
210 | #endif |
211 | #ifndef PerlIO_error | |
14a5cf38 | 212 | extern int PerlIO_error(PerlIO *); |
76ced9ad NIS |
213 | #endif |
214 | #ifndef PerlIO_clearerr | |
14a5cf38 | 215 | extern void PerlIO_clearerr(PerlIO *); |
76ced9ad NIS |
216 | #endif |
217 | #ifndef PerlIO_getc | |
14a5cf38 | 218 | extern int PerlIO_getc(PerlIO *); |
76ced9ad NIS |
219 | #endif |
220 | #ifndef PerlIO_putc | |
14a5cf38 | 221 | extern int PerlIO_putc(PerlIO *, int); |
76ced9ad NIS |
222 | #endif |
223 | #ifndef PerlIO_flush | |
14a5cf38 | 224 | extern int PerlIO_flush(PerlIO *); |
76ced9ad NIS |
225 | #endif |
226 | #ifndef PerlIO_ungetc | |
14a5cf38 | 227 | extern int PerlIO_ungetc(PerlIO *, int); |
76ced9ad NIS |
228 | #endif |
229 | #ifndef PerlIO_fileno | |
14a5cf38 | 230 | extern int PerlIO_fileno(PerlIO *); |
76ced9ad NIS |
231 | #endif |
232 | #ifndef PerlIO_fdopen | |
14a5cf38 | 233 | extern PerlIO *PerlIO_fdopen(int, const char *); |
76ced9ad NIS |
234 | #endif |
235 | #ifndef PerlIO_importFILE | |
14a5cf38 | 236 | extern PerlIO *PerlIO_importFILE(FILE *, int); |
76ced9ad NIS |
237 | #endif |
238 | #ifndef PerlIO_exportFILE | |
14a5cf38 | 239 | extern FILE *PerlIO_exportFILE(PerlIO *, int); |
76ced9ad NIS |
240 | #endif |
241 | #ifndef PerlIO_findFILE | |
14a5cf38 | 242 | extern FILE *PerlIO_findFILE(PerlIO *); |
76ced9ad NIS |
243 | #endif |
244 | #ifndef PerlIO_releaseFILE | |
14a5cf38 | 245 | extern void PerlIO_releaseFILE(PerlIO *, FILE *); |
76ced9ad NIS |
246 | #endif |
247 | #ifndef PerlIO_read | |
14a5cf38 | 248 | extern SSize_t PerlIO_read(PerlIO *, void *, Size_t); |
76ced9ad | 249 | #endif |
a15cef0c | 250 | #ifndef PerlIO_unread |
14a5cf38 | 251 | extern SSize_t PerlIO_unread(PerlIO *, const void *, Size_t); |
a15cef0c | 252 | #endif |
76ced9ad | 253 | #ifndef PerlIO_write |
14a5cf38 | 254 | extern SSize_t PerlIO_write(PerlIO *, const void *, Size_t); |
76ced9ad NIS |
255 | #endif |
256 | #ifndef PerlIO_setlinebuf | |
14a5cf38 | 257 | extern void PerlIO_setlinebuf(PerlIO *); |
76ced9ad NIS |
258 | #endif |
259 | #ifndef PerlIO_printf | |
14a5cf38 JH |
260 | extern int PerlIO_printf(PerlIO *, const char *, ...) |
261 | __attribute__ ((__format__(__printf__, 2, 3))); | |
76ced9ad NIS |
262 | #endif |
263 | #ifndef PerlIO_sprintf | |
14a5cf38 JH |
264 | extern int PerlIO_sprintf(char *, int, const char *, ...) |
265 | __attribute__ ((__format__(__printf__, 3, 4))); | |
76ced9ad NIS |
266 | #endif |
267 | #ifndef PerlIO_vprintf | |
14a5cf38 | 268 | extern int PerlIO_vprintf(PerlIO *, const char *, va_list); |
76ced9ad NIS |
269 | #endif |
270 | #ifndef PerlIO_tell | |
14a5cf38 | 271 | extern Off_t PerlIO_tell(PerlIO *); |
76ced9ad NIS |
272 | #endif |
273 | #ifndef PerlIO_seek | |
14a5cf38 | 274 | extern int PerlIO_seek(PerlIO *, Off_t, int); |
76ced9ad NIS |
275 | #endif |
276 | #ifndef PerlIO_rewind | |
14a5cf38 | 277 | extern void PerlIO_rewind(PerlIO *); |
76ced9ad NIS |
278 | #endif |
279 | #ifndef PerlIO_has_base | |
14a5cf38 | 280 | extern int PerlIO_has_base(PerlIO *); |
76ced9ad NIS |
281 | #endif |
282 | #ifndef PerlIO_has_cntptr | |
14a5cf38 | 283 | extern int PerlIO_has_cntptr(PerlIO *); |
76ced9ad NIS |
284 | #endif |
285 | #ifndef PerlIO_fast_gets | |
14a5cf38 | 286 | extern int PerlIO_fast_gets(PerlIO *); |
76ced9ad NIS |
287 | #endif |
288 | #ifndef PerlIO_canset_cnt | |
14a5cf38 | 289 | extern int PerlIO_canset_cnt(PerlIO *); |
76ced9ad NIS |
290 | #endif |
291 | #ifndef PerlIO_get_ptr | |
14a5cf38 | 292 | extern STDCHAR *PerlIO_get_ptr(PerlIO *); |
76ced9ad NIS |
293 | #endif |
294 | #ifndef PerlIO_get_cnt | |
14a5cf38 | 295 | extern int PerlIO_get_cnt(PerlIO *); |
76ced9ad NIS |
296 | #endif |
297 | #ifndef PerlIO_set_cnt | |
14a5cf38 | 298 | extern void PerlIO_set_cnt(PerlIO *, int); |
76ced9ad NIS |
299 | #endif |
300 | #ifndef PerlIO_set_ptrcnt | |
14a5cf38 | 301 | extern void PerlIO_set_ptrcnt(PerlIO *, STDCHAR *, int); |
76ced9ad NIS |
302 | #endif |
303 | #ifndef PerlIO_get_base | |
14a5cf38 | 304 | extern STDCHAR *PerlIO_get_base(PerlIO *); |
76ced9ad NIS |
305 | #endif |
306 | #ifndef PerlIO_get_bufsiz | |
14a5cf38 | 307 | extern int PerlIO_get_bufsiz(PerlIO *); |
76ced9ad NIS |
308 | #endif |
309 | #ifndef PerlIO_tmpfile | |
14a5cf38 | 310 | extern PerlIO *PerlIO_tmpfile(void); |
76ced9ad NIS |
311 | #endif |
312 | #ifndef PerlIO_stdin | |
14a5cf38 | 313 | extern PerlIO *PerlIO_stdin(void); |
76ced9ad NIS |
314 | #endif |
315 | #ifndef PerlIO_stdout | |
14a5cf38 | 316 | extern PerlIO *PerlIO_stdout(void); |
76ced9ad NIS |
317 | #endif |
318 | #ifndef PerlIO_stderr | |
14a5cf38 | 319 | extern PerlIO *PerlIO_stderr(void); |
76ced9ad NIS |
320 | #endif |
321 | #ifndef PerlIO_getpos | |
14a5cf38 | 322 | extern int PerlIO_getpos(PerlIO *, SV *); |
76ced9ad NIS |
323 | #endif |
324 | #ifndef PerlIO_setpos | |
14a5cf38 | 325 | extern int PerlIO_setpos(PerlIO *, SV *); |
76ced9ad NIS |
326 | #endif |
327 | #ifndef PerlIO_fdupopen | |
8cf8f3d1 | 328 | extern PerlIO *PerlIO_fdupopen(pTHX_ PerlIO *, CLONE_PARAMS *); |
5f1a76d0 | 329 | #endif |
11ae941d | 330 | #if !defined(PerlIO_modestr) && !defined(PERLIO_IS_STDIO) |
14a5cf38 | 331 | extern char *PerlIO_modestr(PerlIO *, char *buf); |
76ced9ad NIS |
332 | #endif |
333 | #ifndef PerlIO_isutf8 | |
14a5cf38 | 334 | extern int PerlIO_isutf8(PerlIO *); |
76ced9ad | 335 | #endif |
156e9b51 | 336 | #ifndef PerlIO_apply_layers |
14a5cf38 JH |
337 | extern int PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, |
338 | const char *names); | |
60382766 NIS |
339 | #endif |
340 | #ifndef PerlIO_binmode | |
14a5cf38 JH |
341 | extern int PerlIO_binmode(pTHX_ PerlIO *f, int iotype, int omode, |
342 | const char *names); | |
ac27b0f5 | 343 | #endif |
a15cef0c | 344 | #ifndef PerlIO_getname |
14a5cf38 | 345 | extern char *PerlIO_getname(PerlIO *, char *); |
a15cef0c | 346 | #endif |
76ced9ad | 347 | |
13621cfb NIS |
348 | extern void PerlIO_destruct(pTHX); |
349 | ||
06c7082d NIS |
350 | extern int PerlIO_intmode2str(int rawmode, char *mode, int *writing); |
351 | ||
3a1ee7e8 NIS |
352 | #ifdef PERLIO_LAYERS |
353 | extern void PerlIO_cleanup(pTHX); | |
adb71456 | 354 | |
14a5cf38 | 355 | extern void PerlIO_debug(const char *fmt, ...); |
3a1ee7e8 NIS |
356 | typedef struct PerlIO_list_s PerlIO_list_t; |
357 | ||
88b61e10 | 358 | |
11ae941d CB |
359 | #endif |
360 | ||
adb71456 | 361 | END_EXTERN_C |
14a5cf38 | 362 | #endif /* _PERLIO_H */ |