Commit | Line | Data |
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eb1102fc NIS |
1 | /* perlio.h |
2 | * | |
4bb101f2 | 3 | * Copyright (C) 1996, 1997, 1999, 2000, 2001, 2002, 2003, |
663f364b | 4 | * 2004, 2005, 2006, 2007, by Larry Wall and others |
eb1102fc NIS |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
9 | */ | |
10 | ||
76ced9ad NIS |
11 | #ifndef _PERLIO_H |
12 | #define _PERLIO_H | |
13 | /* | |
14 | Interface for perl to IO functions. | |
3d036c2b | 15 | There is a hierarchy of Configure determined #define controls: |
786296d4 CB |
16 | USE_STDIO - No longer available via Configure. Formerly forced |
17 | PerlIO_xxx() to be #define-d onto stdio functions. | |
18 | Now generates compile-time error. | |
76ced9ad NIS |
19 | |
20 | USE_PERLIO - The primary Configure variable that enables PerlIO. | |
97cb92d6 | 21 | PerlIO_xxx() are real functions |
76ced9ad NIS |
22 | defined in perlio.c which implement extra functionality |
23 | required for utf8 support. | |
24 | ||
76ced9ad NIS |
25 | */ |
26 | ||
76ced9ad NIS |
27 | #ifndef USE_PERLIO |
28 | # define USE_STDIO | |
29 | #endif | |
30 | ||
31 | #ifdef USE_STDIO | |
786296d4 | 32 | # error "stdio is no longer supported as the default base layer -- use perlio." |
76ced9ad NIS |
33 | #endif |
34 | ||
35 | /* -------------------- End of Configure controls ---------------------------- */ | |
36 | ||
37 | /* | |
38 | * Although we may not want stdio to be used including <stdio.h> here | |
39 | * avoids issues where stdio.h has strange side effects | |
40 | */ | |
41 | #include <stdio.h> | |
42 | ||
43 | #if defined(USE_64_BIT_STDIO) && defined(HAS_FTELLO) && !defined(USE_FTELL64) | |
44 | #define ftell ftello | |
45 | #endif | |
46 | ||
47 | #if defined(USE_64_BIT_STDIO) && defined(HAS_FSEEKO) && !defined(USE_FSEEK64) | |
48 | #define fseek fseeko | |
49 | #endif | |
50 | ||
6f2bd249 JH |
51 | /* BS2000 includes are sometimes a bit non standard :-( */ |
52 | #if defined(POSIX_BC) && defined(O_BINARY) && !defined(O_TEXT) | |
53 | #undef O_BINARY | |
54 | #endif | |
55 | ||
76ced9ad NIS |
56 | #ifndef PerlIO |
57 | /* ----------- PerlIO implementation ---------- */ | |
58 | /* PerlIO not #define-d to something else - define the implementation */ | |
59 | ||
60 | typedef struct _PerlIO PerlIOl; | |
61 | typedef struct _PerlIO_funcs PerlIO_funcs; | |
62 | typedef PerlIOl *PerlIO; | |
63 | #define PerlIO PerlIO | |
a1d180c4 | 64 | #define PERLIO_LAYERS 1 |
76ced9ad | 65 | |
f0e5c859 DD |
66 | /* PERLIO_FUNCS_CONST is now on by default for efficiency, PERLIO_FUNCS_CONST |
67 | can be removed 1 day once stable & then PerlIO vtables are permanently RO */ | |
27da23d5 JH |
68 | #ifdef PERLIO_FUNCS_CONST |
69 | #define PERLIO_FUNCS_DECL(funcs) const PerlIO_funcs funcs | |
70 | #define PERLIO_FUNCS_CAST(funcs) (PerlIO_funcs*)(funcs) | |
71 | #else | |
72 | #define PERLIO_FUNCS_DECL(funcs) PerlIO_funcs funcs | |
73 | #define PERLIO_FUNCS_CAST(funcs) (funcs) | |
74 | #endif | |
75 | ||
fc6bde6f DD |
76 | PERL_CALLCONV void PerlIO_define_layer(pTHX_ PerlIO_funcs *tab); |
77 | PERL_CALLCONV PerlIO_funcs *PerlIO_find_layer(pTHX_ const char *name, | |
27da23d5 JH |
78 | STRLEN len, |
79 | int load); | |
fc6bde6f | 80 | PERL_CALLCONV PerlIO *PerlIO_push(pTHX_ PerlIO *f, PERLIO_FUNCS_DECL(*tab), |
27da23d5 | 81 | const char *mode, SV *arg); |
fc6bde6f DD |
82 | PERL_CALLCONV void PerlIO_pop(pTHX_ PerlIO *f); |
83 | PERL_CALLCONV AV* PerlIO_get_layers(pTHX_ PerlIO *f); | |
84 | PERL_CALLCONV void PerlIO_clone(pTHX_ PerlInterpreter *proto, | |
27da23d5 | 85 | CLONE_PARAMS *param); |
76ced9ad | 86 | |
14a5cf38 | 87 | #endif /* PerlIO */ |
76ced9ad NIS |
88 | |
89 | /* ----------- End of implementation choices ---------- */ | |
90 | ||
76ced9ad NIS |
91 | /* We now need to determine what happens if source trys to use stdio. |
92 | * There are three cases based on PERLIO_NOT_STDIO which XS code | |
93 | * can set how it wants. | |
94 | */ | |
95 | ||
786296d4 | 96 | #ifdef PERL_CORE |
76ced9ad NIS |
97 | /* Make a choice for perl core code |
98 | - currently this is set to try and catch lingering raw stdio calls. | |
99 | This is a known issue with some non UNIX ports which still use | |
100 | "native" stdio features. | |
101 | */ | |
786296d4 CB |
102 | # ifndef PERLIO_NOT_STDIO |
103 | # define PERLIO_NOT_STDIO 1 | |
104 | # endif | |
105 | #else | |
106 | # ifndef PERLIO_NOT_STDIO | |
107 | # define PERLIO_NOT_STDIO 0 | |
108 | # endif | |
76ced9ad NIS |
109 | #endif |
110 | ||
111 | #ifdef PERLIO_NOT_STDIO | |
112 | #if PERLIO_NOT_STDIO | |
113 | /* | |
114 | * PERLIO_NOT_STDIO #define'd as 1 | |
115 | * Case 1: Strong denial of stdio - make all stdio calls (we can think of) errors | |
116 | */ | |
117 | #include "nostdio.h" | |
14a5cf38 | 118 | #else /* if PERLIO_NOT_STDIO */ |
76ced9ad NIS |
119 | /* |
120 | * PERLIO_NOT_STDIO #define'd as 0 | |
121 | * Case 2: Declares that both PerlIO and stdio can be used | |
122 | */ | |
14a5cf38 JH |
123 | #endif /* if PERLIO_NOT_STDIO */ |
124 | #else /* ifdef PERLIO_NOT_STDIO */ | |
76ced9ad NIS |
125 | /* |
126 | * PERLIO_NOT_STDIO not defined | |
127 | * Case 3: Try and fake stdio calls as PerlIO calls | |
128 | */ | |
129 | #include "fakesdio.h" | |
14a5cf38 | 130 | #endif /* ifndef PERLIO_NOT_STDIO */ |
76ced9ad NIS |
131 | |
132 | /* ----------- fill in things that have not got #define'd ---------- */ | |
133 | ||
134 | #ifndef Fpos_t | |
135 | #define Fpos_t Off_t | |
136 | #endif | |
137 | ||
138 | #ifndef EOF | |
139 | #define EOF (-1) | |
140 | #endif | |
141 | ||
142 | /* This is to catch case with no stdio */ | |
143 | #ifndef BUFSIZ | |
144 | #define BUFSIZ 1024 | |
145 | #endif | |
146 | ||
1810cd7c CB |
147 | /* The default buffer size for the perlio buffering layer */ |
148 | #ifndef PERLIOBUF_DEFAULT_BUFSIZ | |
b83080de | 149 | #define PERLIOBUF_DEFAULT_BUFSIZ (BUFSIZ > 8192 ? BUFSIZ : 8192) |
a3cbd8d0 CB |
150 | #endif |
151 | ||
76ced9ad NIS |
152 | #ifndef SEEK_SET |
153 | #define SEEK_SET 0 | |
154 | #endif | |
155 | ||
156 | #ifndef SEEK_CUR | |
157 | #define SEEK_CUR 1 | |
158 | #endif | |
159 | ||
160 | #ifndef SEEK_END | |
161 | #define SEEK_END 2 | |
162 | #endif | |
163 | ||
ecdeb87c NIS |
164 | #define PERLIO_DUP_CLONE 1 |
165 | #define PERLIO_DUP_FD 2 | |
166 | ||
76ced9ad NIS |
167 | /* --------------------- Now prototypes for functions --------------- */ |
168 | ||
adb71456 | 169 | START_EXTERN_C |
2c2e4525 | 170 | #ifndef __attribute__format__ |
b79c357a RGS |
171 | # ifdef HASATTRIBUTE_FORMAT |
172 | # define __attribute__format__(x,y,z) __attribute__((format(x,y,z))) | |
173 | # else | |
174 | # define __attribute__format__(x,y,z) | |
175 | # endif | |
76ced9ad | 176 | #endif |
76ced9ad | 177 | #ifndef PerlIO_init |
fc6bde6f | 178 | PERL_CALLCONV void PerlIO_init(pTHX); |
76ced9ad NIS |
179 | #endif |
180 | #ifndef PerlIO_stdoutf | |
fc6bde6f | 181 | PERL_CALLCONV int PerlIO_stdoutf(const char *, ...) |
287c8091 | 182 | __attribute__format__(__printf__, 1, 2); |
76ced9ad NIS |
183 | #endif |
184 | #ifndef PerlIO_puts | |
fc6bde6f | 185 | PERL_CALLCONV int PerlIO_puts(PerlIO *, const char *); |
76ced9ad NIS |
186 | #endif |
187 | #ifndef PerlIO_open | |
fc6bde6f | 188 | PERL_CALLCONV PerlIO *PerlIO_open(const char *, const char *); |
76ced9ad | 189 | #endif |
6e60e805 | 190 | #ifndef PerlIO_openn |
fc6bde6f | 191 | PERL_CALLCONV PerlIO *PerlIO_openn(pTHX_ const char *layers, const char *mode, |
27da23d5 JH |
192 | int fd, int imode, int perm, PerlIO *old, |
193 | int narg, SV **arg); | |
ee518936 | 194 | #endif |
76ced9ad | 195 | #ifndef PerlIO_eof |
fc6bde6f | 196 | PERL_CALLCONV int PerlIO_eof(PerlIO *); |
76ced9ad NIS |
197 | #endif |
198 | #ifndef PerlIO_error | |
fc6bde6f | 199 | PERL_CALLCONV int PerlIO_error(PerlIO *); |
76ced9ad NIS |
200 | #endif |
201 | #ifndef PerlIO_clearerr | |
fc6bde6f | 202 | PERL_CALLCONV void PerlIO_clearerr(PerlIO *); |
76ced9ad NIS |
203 | #endif |
204 | #ifndef PerlIO_getc | |
fc6bde6f | 205 | PERL_CALLCONV int PerlIO_getc(PerlIO *); |
76ced9ad NIS |
206 | #endif |
207 | #ifndef PerlIO_putc | |
fc6bde6f | 208 | PERL_CALLCONV int PerlIO_putc(PerlIO *, int); |
76ced9ad | 209 | #endif |
76ced9ad | 210 | #ifndef PerlIO_ungetc |
fc6bde6f | 211 | PERL_CALLCONV int PerlIO_ungetc(PerlIO *, int); |
76ced9ad | 212 | #endif |
76ced9ad | 213 | #ifndef PerlIO_fdopen |
fc6bde6f | 214 | PERL_CALLCONV PerlIO *PerlIO_fdopen(int, const char *); |
76ced9ad NIS |
215 | #endif |
216 | #ifndef PerlIO_importFILE | |
fc6bde6f | 217 | PERL_CALLCONV PerlIO *PerlIO_importFILE(FILE *, const char *); |
76ced9ad NIS |
218 | #endif |
219 | #ifndef PerlIO_exportFILE | |
fc6bde6f | 220 | PERL_CALLCONV FILE *PerlIO_exportFILE(PerlIO *, const char *); |
76ced9ad NIS |
221 | #endif |
222 | #ifndef PerlIO_findFILE | |
fc6bde6f | 223 | PERL_CALLCONV FILE *PerlIO_findFILE(PerlIO *); |
76ced9ad NIS |
224 | #endif |
225 | #ifndef PerlIO_releaseFILE | |
fc6bde6f | 226 | PERL_CALLCONV void PerlIO_releaseFILE(PerlIO *, FILE *); |
76ced9ad NIS |
227 | #endif |
228 | #ifndef PerlIO_read | |
fc6bde6f | 229 | PERL_CALLCONV SSize_t PerlIO_read(PerlIO *, void *, Size_t); |
76ced9ad | 230 | #endif |
a15cef0c | 231 | #ifndef PerlIO_unread |
fc6bde6f | 232 | PERL_CALLCONV SSize_t PerlIO_unread(PerlIO *, const void *, Size_t); |
a15cef0c | 233 | #endif |
76ced9ad | 234 | #ifndef PerlIO_write |
fc6bde6f | 235 | PERL_CALLCONV SSize_t PerlIO_write(PerlIO *, const void *, Size_t); |
76ced9ad NIS |
236 | #endif |
237 | #ifndef PerlIO_setlinebuf | |
fc6bde6f | 238 | PERL_CALLCONV void PerlIO_setlinebuf(PerlIO *); |
76ced9ad NIS |
239 | #endif |
240 | #ifndef PerlIO_printf | |
fc6bde6f | 241 | PERL_CALLCONV int PerlIO_printf(PerlIO *, const char *, ...) |
287c8091 | 242 | __attribute__format__(__printf__, 2, 3); |
76ced9ad | 243 | #endif |
76ced9ad | 244 | #ifndef PerlIO_vprintf |
fc6bde6f | 245 | PERL_CALLCONV int PerlIO_vprintf(PerlIO *, const char *, va_list); |
76ced9ad NIS |
246 | #endif |
247 | #ifndef PerlIO_tell | |
fc6bde6f | 248 | PERL_CALLCONV Off_t PerlIO_tell(PerlIO *); |
76ced9ad NIS |
249 | #endif |
250 | #ifndef PerlIO_seek | |
fc6bde6f | 251 | PERL_CALLCONV int PerlIO_seek(PerlIO *, Off_t, int); |
76ced9ad NIS |
252 | #endif |
253 | #ifndef PerlIO_rewind | |
fc6bde6f | 254 | PERL_CALLCONV void PerlIO_rewind(PerlIO *); |
76ced9ad NIS |
255 | #endif |
256 | #ifndef PerlIO_has_base | |
fc6bde6f | 257 | PERL_CALLCONV int PerlIO_has_base(PerlIO *); |
76ced9ad NIS |
258 | #endif |
259 | #ifndef PerlIO_has_cntptr | |
fc6bde6f | 260 | PERL_CALLCONV int PerlIO_has_cntptr(PerlIO *); |
76ced9ad NIS |
261 | #endif |
262 | #ifndef PerlIO_fast_gets | |
fc6bde6f | 263 | PERL_CALLCONV int PerlIO_fast_gets(PerlIO *); |
76ced9ad NIS |
264 | #endif |
265 | #ifndef PerlIO_canset_cnt | |
fc6bde6f | 266 | PERL_CALLCONV int PerlIO_canset_cnt(PerlIO *); |
76ced9ad NIS |
267 | #endif |
268 | #ifndef PerlIO_get_ptr | |
fc6bde6f | 269 | PERL_CALLCONV STDCHAR *PerlIO_get_ptr(PerlIO *); |
76ced9ad NIS |
270 | #endif |
271 | #ifndef PerlIO_get_cnt | |
fc6bde6f | 272 | PERL_CALLCONV SSize_t PerlIO_get_cnt(PerlIO *); |
76ced9ad NIS |
273 | #endif |
274 | #ifndef PerlIO_set_cnt | |
fc6bde6f | 275 | PERL_CALLCONV void PerlIO_set_cnt(PerlIO *, SSize_t); |
76ced9ad NIS |
276 | #endif |
277 | #ifndef PerlIO_set_ptrcnt | |
fc6bde6f | 278 | PERL_CALLCONV void PerlIO_set_ptrcnt(PerlIO *, STDCHAR *, SSize_t); |
76ced9ad NIS |
279 | #endif |
280 | #ifndef PerlIO_get_base | |
fc6bde6f | 281 | PERL_CALLCONV STDCHAR *PerlIO_get_base(PerlIO *); |
76ced9ad NIS |
282 | #endif |
283 | #ifndef PerlIO_get_bufsiz | |
fc6bde6f | 284 | PERL_CALLCONV SSize_t PerlIO_get_bufsiz(PerlIO *); |
76ced9ad NIS |
285 | #endif |
286 | #ifndef PerlIO_tmpfile | |
fc6bde6f | 287 | PERL_CALLCONV PerlIO *PerlIO_tmpfile(void); |
76ced9ad NIS |
288 | #endif |
289 | #ifndef PerlIO_stdin | |
fc6bde6f | 290 | PERL_CALLCONV PerlIO *PerlIO_stdin(void); |
76ced9ad NIS |
291 | #endif |
292 | #ifndef PerlIO_stdout | |
fc6bde6f | 293 | PERL_CALLCONV PerlIO *PerlIO_stdout(void); |
76ced9ad NIS |
294 | #endif |
295 | #ifndef PerlIO_stderr | |
fc6bde6f | 296 | PERL_CALLCONV PerlIO *PerlIO_stderr(void); |
76ced9ad NIS |
297 | #endif |
298 | #ifndef PerlIO_getpos | |
fc6bde6f | 299 | PERL_CALLCONV int PerlIO_getpos(PerlIO *, SV *); |
76ced9ad NIS |
300 | #endif |
301 | #ifndef PerlIO_setpos | |
fc6bde6f | 302 | PERL_CALLCONV int PerlIO_setpos(PerlIO *, SV *); |
76ced9ad NIS |
303 | #endif |
304 | #ifndef PerlIO_fdupopen | |
fc6bde6f | 305 | PERL_CALLCONV PerlIO *PerlIO_fdupopen(pTHX_ PerlIO *, CLONE_PARAMS *, int); |
5f1a76d0 | 306 | #endif |
786296d4 | 307 | #if !defined(PerlIO_modestr) |
fc6bde6f | 308 | PERL_CALLCONV char *PerlIO_modestr(PerlIO *, char *buf); |
76ced9ad NIS |
309 | #endif |
310 | #ifndef PerlIO_isutf8 | |
fc6bde6f | 311 | PERL_CALLCONV int PerlIO_isutf8(PerlIO *); |
76ced9ad | 312 | #endif |
156e9b51 | 313 | #ifndef PerlIO_apply_layers |
fc6bde6f | 314 | PERL_CALLCONV int PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, |
27da23d5 | 315 | const char *names); |
60382766 NIS |
316 | #endif |
317 | #ifndef PerlIO_binmode | |
fc6bde6f | 318 | PERL_CALLCONV int PerlIO_binmode(pTHX_ PerlIO *f, int iotype, int omode, |
27da23d5 | 319 | const char *names); |
ac27b0f5 | 320 | #endif |
a15cef0c | 321 | #ifndef PerlIO_getname |
fc6bde6f | 322 | PERL_CALLCONV char *PerlIO_getname(PerlIO *, char *); |
a15cef0c | 323 | #endif |
76ced9ad | 324 | |
fc6bde6f | 325 | PERL_CALLCONV void PerlIO_destruct(pTHX); |
13621cfb | 326 | |
fc6bde6f | 327 | PERL_CALLCONV int PerlIO_intmode2str(int rawmode, char *mode, int *writing); |
06c7082d | 328 | |
3a1ee7e8 | 329 | #ifdef PERLIO_LAYERS |
fc6bde6f | 330 | PERL_CALLCONV void PerlIO_cleanup(pTHX); |
adb71456 | 331 | |
fc6bde6f | 332 | PERL_CALLCONV void PerlIO_debug(const char *fmt, ...) |
de009b76 | 333 | __attribute__format__(__printf__, 1, 2); |
3a1ee7e8 NIS |
334 | typedef struct PerlIO_list_s PerlIO_list_t; |
335 | ||
11ae941d CB |
336 | #endif |
337 | ||
adb71456 | 338 | END_EXTERN_C |
14a5cf38 | 339 | #endif /* _PERLIO_H */ |
e9a8c099 MHM |
340 | |
341 | /* | |
14d04a33 | 342 | * ex: set ts=8 sts=4 sw=4 et: |
e9a8c099 | 343 | */ |