Commit | Line | Data |
918951dd |
1 | /* |
2 | * $Id$ |
3 | */ |
4 | |
59035dcc |
5 | #define PERL_NO_GET_CONTEXT |
6 | #include "EXTERN.h" |
7 | #include "perl.h" |
8 | #include "XSUB.h" |
9 | #define U8 U8 |
10 | |
11 | #if defined(USE_PERLIO) && !defined(USE_SFIO) |
12 | |
13 | /* Define an encoding "layer" in the perliol.h sense. |
14 | |
15 | The layer defined here "inherits" in an object-oriented sense from |
16 | the "perlio" layer with its PerlIOBuf_* "methods". The |
17 | implementation is particularly efficient as until Encode settles |
18 | down there is no point in tryint to tune it. |
19 | |
20 | The layer works by overloading the "fill" and "flush" methods. |
21 | |
22 | "fill" calls "SUPER::fill" in perl terms, then calls the encode OO |
23 | perl API to convert the encoded data to UTF-8 form, then copies it |
24 | back to the buffer. The "base class's" read methods then see the |
25 | UTF-8 data. |
26 | |
27 | "flush" transforms the UTF-8 data deposited by the "base class's |
28 | write method in the buffer back into the encoded form using the |
29 | encode OO perl API, then copies data back into the buffer and calls |
30 | "SUPER::flush. |
31 | |
32 | Note that "flush" is _also_ called for read mode - we still do the |
33 | (back)-translate so that the the base class's "flush" sees the |
34 | correct number of encoded chars for positioning the seek |
35 | pointer. (This double translation is the worst performance issue - |
36 | particularly with all-perl encode engine.) |
37 | |
38 | */ |
39 | |
40 | #include "perliol.h" |
41 | |
42 | typedef struct { |
43 | PerlIOBuf base; /* PerlIOBuf stuff */ |
44 | SV *bufsv; /* buffer seen by layers above */ |
45 | SV *dataSV; /* data we have read from layer below */ |
46 | SV *enc; /* the encoding object */ |
918951dd |
47 | SV *chk; /* CHECK in Encode methods */ |
20de0cb2 |
48 | int flags; /* Flags currently just needs lines */ |
59035dcc |
49 | } PerlIOEncode; |
50 | |
20de0cb2 |
51 | #define NEEDS_LINES 1 |
918951dd |
52 | |
20de0cb2 |
53 | #if 0 |
e66821e8 |
54 | #define OUR_ENCODE_FB "Encode::FB_PERLQQ" |
20de0cb2 |
55 | #else |
56 | #define OUR_ENCODE_FB "Encode::FB_QUIET" |
57 | #endif |
918951dd |
58 | |
59035dcc |
59 | SV * |
60 | PerlIOEncode_getarg(pTHX_ PerlIO * f, CLONE_PARAMS * param, int flags) |
61 | { |
62 | PerlIOEncode *e = PerlIOSelf(f, PerlIOEncode); |
63 | SV *sv = &PL_sv_undef; |
64 | if (e->enc) { |
65 | dSP; |
66 | ENTER; |
67 | SAVETMPS; |
68 | PUSHMARK(sp); |
69 | XPUSHs(e->enc); |
70 | PUTBACK; |
918951dd |
71 | if (call_method("name", G_SCALAR) == 1) { |
59035dcc |
72 | SPAGAIN; |
73 | sv = newSVsv(POPs); |
74 | PUTBACK; |
75 | } |
76 | } |
77 | return sv; |
78 | } |
79 | |
80 | IV |
81 | PerlIOEncode_pushed(pTHX_ PerlIO * f, const char *mode, SV * arg) |
82 | { |
83 | PerlIOEncode *e = PerlIOSelf(f, PerlIOEncode); |
84 | dSP; |
85 | IV code; |
20de0cb2 |
86 | SV *result = Nullsv; |
59035dcc |
87 | code = PerlIOBuf_pushed(aTHX_ f, mode, Nullsv); |
88 | ENTER; |
89 | SAVETMPS; |
918951dd |
90 | |
91 | PUSHMARK(sp); |
59035dcc |
92 | XPUSHs(arg); |
93 | PUTBACK; |
918951dd |
94 | if (call_pv("Encode::find_encoding", G_SCALAR) != 1) { |
59035dcc |
95 | /* should never happen */ |
96 | Perl_die(aTHX_ "Encode::find_encoding did not return a value"); |
97 | return -1; |
98 | } |
99 | SPAGAIN; |
20de0cb2 |
100 | result = POPs; |
59035dcc |
101 | PUTBACK; |
918951dd |
102 | |
20de0cb2 |
103 | if (!SvROK(result) || !SvOBJECT(SvRV(result))) { |
59035dcc |
104 | e->enc = Nullsv; |
59035dcc |
105 | Perl_warner(aTHX_ packWARN(WARN_IO), "Cannot find encoding \"%" SVf "\"", |
20de0cb2 |
106 | arg); |
107 | errno = EINVAL; |
59035dcc |
108 | code = -1; |
109 | } |
110 | else { |
20de0cb2 |
111 | #ifdef USE_NEW_SEQUENCE |
112 | PUSHMARK(sp); |
113 | XPUSHs(result); |
114 | PUTBACK; |
115 | if (call_method("new_sequence",G_SCALAR|G_EVAL) != 1 || SvTRUE(ERRSV)) { |
116 | Perl_warner(aTHX_ packWARN(WARN_IO), "\"%" SVf "\" does not support new_sequence", |
117 | arg); |
118 | } |
119 | else { |
120 | SPAGAIN; |
121 | result = POPs; |
122 | PUTBACK; |
123 | } |
124 | #endif |
125 | e->enc = newSVsv(result); |
126 | PUSHMARK(sp); |
127 | XPUSHs(e->enc); |
128 | PUTBACK; |
129 | if (call_method("needs_lines",G_SCALAR|G_EVAL) != 1 || SvTRUE(ERRSV)) { |
130 | Perl_warner(aTHX_ packWARN(WARN_IO), "\"%" SVf "\" does not support needs_lines", |
131 | arg); |
132 | } |
133 | else { |
134 | SPAGAIN; |
135 | result = POPs; |
136 | PUTBACK; |
137 | if (SvTRUE(result)) { |
138 | e->flags |= NEEDS_LINES; |
139 | } |
140 | } |
59035dcc |
141 | PerlIOBase(f)->flags |= PERLIO_F_UTF8; |
142 | } |
20de0cb2 |
143 | |
144 | e->chk = newSVsv(get_sv("PerlIO::encoding::check",0)); |
145 | |
59035dcc |
146 | FREETMPS; |
147 | LEAVE; |
148 | return code; |
149 | } |
150 | |
151 | IV |
152 | PerlIOEncode_popped(pTHX_ PerlIO * f) |
153 | { |
154 | PerlIOEncode *e = PerlIOSelf(f, PerlIOEncode); |
155 | if (e->enc) { |
156 | SvREFCNT_dec(e->enc); |
157 | e->enc = Nullsv; |
158 | } |
159 | if (e->bufsv) { |
160 | SvREFCNT_dec(e->bufsv); |
161 | e->bufsv = Nullsv; |
162 | } |
163 | if (e->dataSV) { |
164 | SvREFCNT_dec(e->dataSV); |
165 | e->dataSV = Nullsv; |
166 | } |
20de0cb2 |
167 | if (e->chk) { |
168 | SvREFCNT_dec(e->chk); |
169 | e->dataSV = Nullsv; |
170 | } |
59035dcc |
171 | return 0; |
172 | } |
173 | |
174 | STDCHAR * |
175 | PerlIOEncode_get_base(pTHX_ PerlIO * f) |
176 | { |
177 | PerlIOEncode *e = PerlIOSelf(f, PerlIOEncode); |
178 | if (!e->base.bufsiz) |
179 | e->base.bufsiz = 1024; |
180 | if (!e->bufsv) { |
181 | e->bufsv = newSV(e->base.bufsiz); |
182 | sv_setpvn(e->bufsv, "", 0); |
183 | } |
184 | e->base.buf = (STDCHAR *) SvPVX(e->bufsv); |
185 | if (!e->base.ptr) |
186 | e->base.ptr = e->base.buf; |
187 | if (!e->base.end) |
188 | e->base.end = e->base.buf; |
189 | if (e->base.ptr < e->base.buf |
190 | || e->base.ptr > e->base.buf + SvLEN(e->bufsv)) { |
191 | Perl_warn(aTHX_ " ptr %p(%p)%p", e->base.buf, e->base.ptr, |
192 | e->base.buf + SvLEN(e->bufsv)); |
193 | abort(); |
194 | } |
195 | if (SvLEN(e->bufsv) < e->base.bufsiz) { |
196 | SSize_t poff = e->base.ptr - e->base.buf; |
197 | SSize_t eoff = e->base.end - e->base.buf; |
198 | e->base.buf = (STDCHAR *) SvGROW(e->bufsv, e->base.bufsiz); |
199 | e->base.ptr = e->base.buf + poff; |
200 | e->base.end = e->base.buf + eoff; |
201 | } |
202 | if (e->base.ptr < e->base.buf |
203 | || e->base.ptr > e->base.buf + SvLEN(e->bufsv)) { |
204 | Perl_warn(aTHX_ " ptr %p(%p)%p", e->base.buf, e->base.ptr, |
205 | e->base.buf + SvLEN(e->bufsv)); |
206 | abort(); |
207 | } |
208 | return e->base.buf; |
209 | } |
210 | |
211 | IV |
212 | PerlIOEncode_fill(pTHX_ PerlIO * f) |
213 | { |
214 | PerlIOEncode *e = PerlIOSelf(f, PerlIOEncode); |
215 | dSP; |
216 | IV code = 0; |
217 | PerlIO *n; |
218 | SSize_t avail; |
219 | if (PerlIO_flush(f) != 0) |
220 | return -1; |
221 | n = PerlIONext(f); |
222 | if (!PerlIO_fast_gets(n)) { |
223 | /* Things get too messy if we don't have a buffer layer |
224 | push a :perlio to do the job */ |
225 | char mode[8]; |
226 | n = PerlIO_push(aTHX_ n, &PerlIO_perlio, PerlIO_modestr(f,mode), Nullsv); |
227 | if (!n) { |
228 | Perl_die(aTHX_ "panic: cannot push :perlio for %p",f); |
229 | } |
230 | } |
231 | ENTER; |
232 | SAVETMPS; |
233 | retry: |
234 | avail = PerlIO_get_cnt(n); |
235 | if (avail <= 0) { |
236 | avail = PerlIO_fill(n); |
237 | if (avail == 0) { |
238 | avail = PerlIO_get_cnt(n); |
239 | } |
240 | else { |
241 | if (!PerlIO_error(n) && PerlIO_eof(n)) |
242 | avail = 0; |
243 | } |
244 | } |
20de0cb2 |
245 | if (avail > 0 || (e->flags & NEEDS_LINES)) { |
59035dcc |
246 | STDCHAR *ptr = PerlIO_get_ptr(n); |
20de0cb2 |
247 | SSize_t use = (avail >= 0) ? avail : 0; |
59035dcc |
248 | SV *uni; |
249 | char *s; |
250 | STRLEN len = 0; |
251 | e->base.ptr = e->base.end = (STDCHAR *) Nullch; |
252 | (void) PerlIOEncode_get_base(aTHX_ f); |
253 | if (!e->dataSV) |
254 | e->dataSV = newSV(0); |
255 | if (SvTYPE(e->dataSV) < SVt_PV) { |
256 | sv_upgrade(e->dataSV,SVt_PV); |
257 | } |
20de0cb2 |
258 | if (e->flags & NEEDS_LINES) { |
259 | /* Encoding needs whole lines (e.g. iso-2022-*) |
260 | search back from end of available data for |
261 | and line marker |
262 | */ |
263 | STDCHAR *nl = ptr+use-1; |
264 | while (nl >= ptr) { |
265 | if (*nl == '\n') { |
266 | break; |
267 | } |
268 | nl--; |
269 | } |
270 | if (nl >= ptr && *nl == '\n') { |
271 | /* found a line - take up to and including that */ |
272 | use = (nl+1)-ptr; |
273 | } |
274 | else if (avail > 0) { |
275 | /* No line, but not EOF - append avail to the pending data */ |
276 | sv_catpvn(e->dataSV, ptr, use); |
277 | PerlIO_set_ptrcnt(n, ptr+use, 0); |
278 | goto retry; |
279 | } |
280 | else if (!SvCUR(e->dataSV)) { |
281 | goto end_of_file; |
282 | } |
283 | } |
59035dcc |
284 | if (SvCUR(e->dataSV)) { |
285 | /* something left over from last time - create a normal |
286 | SV with new data appended |
287 | */ |
288 | if (use + SvCUR(e->dataSV) > e->base.bufsiz) { |
20de0cb2 |
289 | if (e->flags & NEEDS_LINES) { |
290 | /* Have to grow buffer */ |
291 | e->base.bufsiz = use + SvCUR(e->dataSV); |
292 | PerlIOEncode_get_base(aTHX_ f); |
293 | } |
294 | else { |
295 | use = e->base.bufsiz - SvCUR(e->dataSV); |
296 | } |
59035dcc |
297 | } |
298 | sv_catpvn(e->dataSV,(char*)ptr,use); |
299 | } |
300 | else { |
301 | /* Create a "dummy" SV to represent the available data from layer below */ |
302 | if (SvLEN(e->dataSV) && SvPVX(e->dataSV)) { |
303 | Safefree(SvPVX(e->dataSV)); |
304 | } |
91f3b821 |
305 | if (use > (SSize_t)e->base.bufsiz) { |
20de0cb2 |
306 | if (e->flags & NEEDS_LINES) { |
307 | /* Have to grow buffer */ |
308 | e->base.bufsiz = use; |
309 | PerlIOEncode_get_base(aTHX_ f); |
310 | } |
311 | else { |
312 | use = e->base.bufsiz; |
313 | } |
59035dcc |
314 | } |
315 | SvPVX(e->dataSV) = (char *) ptr; |
316 | SvLEN(e->dataSV) = 0; /* Hands off sv.c - it isn't yours */ |
317 | SvCUR_set(e->dataSV,use); |
318 | SvPOK_only(e->dataSV); |
319 | } |
320 | SvUTF8_off(e->dataSV); |
321 | PUSHMARK(sp); |
322 | XPUSHs(e->enc); |
323 | XPUSHs(e->dataSV); |
918951dd |
324 | XPUSHs(e->chk); |
59035dcc |
325 | PUTBACK; |
918951dd |
326 | if (call_method("decode", G_SCALAR) != 1) { |
59035dcc |
327 | Perl_die(aTHX_ "panic: decode did not return a value"); |
328 | } |
329 | SPAGAIN; |
330 | uni = POPs; |
331 | PUTBACK; |
332 | /* Now get translated string (forced to UTF-8) and use as buffer */ |
333 | if (SvPOK(uni)) { |
334 | s = SvPVutf8(uni, len); |
335 | #ifdef PARANOID_ENCODE_CHECKS |
336 | if (len && !is_utf8_string((U8*)s,len)) { |
337 | Perl_warn(aTHX_ "panic: decode did not return UTF-8 '%.*s'",(int) len,s); |
338 | } |
339 | #endif |
340 | } |
341 | if (len > 0) { |
342 | /* Got _something */ |
343 | /* if decode gave us back dataSV then data may vanish when |
344 | we do ptrcnt adjust - so take our copy now. |
345 | (The copy is a pain - need a put-it-here option for decode.) |
346 | */ |
347 | sv_setpvn(e->bufsv,s,len); |
348 | e->base.ptr = e->base.buf = (STDCHAR*)SvPVX(e->bufsv); |
349 | e->base.end = e->base.ptr + SvCUR(e->bufsv); |
350 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
351 | SvUTF8_on(e->bufsv); |
352 | |
353 | /* Adjust ptr/cnt not taking anything which |
354 | did not translate - not clear this is a win */ |
355 | /* compute amount we took */ |
356 | use -= SvCUR(e->dataSV); |
357 | PerlIO_set_ptrcnt(n, ptr+use, (avail-use)); |
358 | /* and as we did not take it it isn't pending */ |
359 | SvCUR_set(e->dataSV,0); |
360 | } else { |
361 | /* Got nothing - assume partial character so we need some more */ |
362 | /* Make sure e->dataSV is a normal SV before re-filling as |
363 | buffer alias will change under us |
364 | */ |
365 | s = SvPV(e->dataSV,len); |
366 | sv_setpvn(e->dataSV,s,len); |
367 | PerlIO_set_ptrcnt(n, ptr+use, (avail-use)); |
368 | goto retry; |
369 | } |
370 | FREETMPS; |
371 | LEAVE; |
372 | return code; |
373 | } |
374 | else { |
20de0cb2 |
375 | end_of_file: |
59035dcc |
376 | if (avail == 0) |
377 | PerlIOBase(f)->flags |= PERLIO_F_EOF; |
378 | else |
379 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
380 | return -1; |
381 | } |
382 | } |
383 | |
384 | IV |
385 | PerlIOEncode_flush(pTHX_ PerlIO * f) |
386 | { |
387 | PerlIOEncode *e = PerlIOSelf(f, PerlIOEncode); |
388 | IV code = 0; |
389 | if (e->bufsv && (e->base.ptr > e->base.buf)) { |
390 | dSP; |
391 | SV *str; |
392 | char *s; |
393 | STRLEN len; |
394 | SSize_t count = 0; |
395 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) { |
396 | /* Write case encode the buffer and write() to layer below */ |
397 | ENTER; |
398 | SAVETMPS; |
399 | PUSHMARK(sp); |
400 | XPUSHs(e->enc); |
401 | SvCUR_set(e->bufsv, e->base.ptr - e->base.buf); |
402 | SvUTF8_on(e->bufsv); |
403 | XPUSHs(e->bufsv); |
918951dd |
404 | XPUSHs(e->chk); |
59035dcc |
405 | PUTBACK; |
918951dd |
406 | if (call_method("encode", G_SCALAR) != 1) { |
59035dcc |
407 | Perl_die(aTHX_ "panic: encode did not return a value"); |
408 | } |
409 | SPAGAIN; |
410 | str = POPs; |
411 | PUTBACK; |
412 | s = SvPV(str, len); |
413 | count = PerlIO_write(PerlIONext(f),s,len); |
414 | if (count != len) { |
415 | code = -1; |
416 | } |
417 | FREETMPS; |
418 | LEAVE; |
419 | if (PerlIO_flush(PerlIONext(f)) != 0) { |
420 | code = -1; |
421 | } |
422 | if (SvCUR(e->bufsv)) { |
423 | /* Did not all translate */ |
424 | e->base.ptr = e->base.buf+SvCUR(e->bufsv); |
425 | return code; |
426 | } |
427 | } |
428 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) { |
429 | /* read case */ |
430 | /* if we have any untranslated stuff then unread that first */ |
431 | if (e->dataSV && SvCUR(e->dataSV)) { |
432 | s = SvPV(e->dataSV, len); |
433 | count = PerlIO_unread(PerlIONext(f),s,len); |
434 | if (count != len) { |
435 | code = -1; |
436 | } |
437 | } |
438 | /* See if there is anything left in the buffer */ |
439 | if (e->base.ptr < e->base.end) { |
440 | /* Bother - have unread data. |
441 | re-encode and unread() to layer below |
442 | */ |
443 | ENTER; |
444 | SAVETMPS; |
445 | str = sv_newmortal(); |
446 | sv_upgrade(str, SVt_PV); |
447 | SvPVX(str) = (char*)e->base.ptr; |
448 | SvLEN(str) = 0; |
449 | SvCUR_set(str, e->base.end - e->base.ptr); |
450 | SvPOK_only(str); |
451 | SvUTF8_on(str); |
452 | PUSHMARK(sp); |
453 | XPUSHs(e->enc); |
454 | XPUSHs(str); |
918951dd |
455 | XPUSHs(e->chk); |
59035dcc |
456 | PUTBACK; |
918951dd |
457 | if (call_method("encode", G_SCALAR) != 1) { |
59035dcc |
458 | Perl_die(aTHX_ "panic: encode did not return a value"); |
459 | } |
460 | SPAGAIN; |
461 | str = POPs; |
462 | PUTBACK; |
463 | s = SvPV(str, len); |
464 | count = PerlIO_unread(PerlIONext(f),s,len); |
465 | if (count != len) { |
466 | code = -1; |
467 | } |
468 | FREETMPS; |
469 | LEAVE; |
470 | } |
471 | } |
472 | e->base.ptr = e->base.end = e->base.buf; |
473 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF | PERLIO_F_WRBUF); |
474 | } |
475 | return code; |
476 | } |
477 | |
478 | IV |
479 | PerlIOEncode_close(pTHX_ PerlIO * f) |
480 | { |
481 | PerlIOEncode *e = PerlIOSelf(f, PerlIOEncode); |
482 | IV code = PerlIOBase_close(aTHX_ f); |
483 | if (e->bufsv) { |
484 | if (e->base.buf && e->base.ptr > e->base.buf) { |
485 | Perl_croak(aTHX_ "Close with partial character"); |
486 | } |
487 | SvREFCNT_dec(e->bufsv); |
488 | e->bufsv = Nullsv; |
489 | } |
490 | e->base.buf = NULL; |
491 | e->base.ptr = NULL; |
492 | e->base.end = NULL; |
493 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF | PERLIO_F_WRBUF); |
494 | return code; |
495 | } |
496 | |
497 | Off_t |
498 | PerlIOEncode_tell(pTHX_ PerlIO * f) |
499 | { |
500 | PerlIOBuf *b = PerlIOSelf(f, PerlIOBuf); |
501 | /* Unfortunately the only way to get a postion is to (re-)translate, |
502 | the UTF8 we have in bufefr and then ask layer below |
503 | */ |
504 | PerlIO_flush(f); |
505 | if (b->buf && b->ptr > b->buf) { |
506 | Perl_croak(aTHX_ "Cannot tell at partial character"); |
507 | } |
508 | return PerlIO_tell(PerlIONext(f)); |
509 | } |
510 | |
511 | PerlIO * |
512 | PerlIOEncode_dup(pTHX_ PerlIO * f, PerlIO * o, |
513 | CLONE_PARAMS * params, int flags) |
514 | { |
515 | if ((f = PerlIOBase_dup(aTHX_ f, o, params, flags))) { |
516 | PerlIOEncode *fe = PerlIOSelf(f, PerlIOEncode); |
517 | PerlIOEncode *oe = PerlIOSelf(o, PerlIOEncode); |
518 | if (oe->enc) { |
519 | fe->enc = PerlIO_sv_dup(aTHX_ oe->enc, params); |
520 | } |
521 | } |
522 | return f; |
523 | } |
524 | |
20de0cb2 |
525 | SSize_t |
526 | PerlIOEncode_write(pTHX_ PerlIO *f, const void *vbuf, Size_t count) |
527 | { |
20de0cb2 |
528 | PerlIOEncode *e = PerlIOSelf(f, PerlIOEncode); |
529 | if (e->flags & NEEDS_LINES) { |
e66821e8 |
530 | SSize_t done = 0; |
531 | const char *ptr = (const char *) vbuf; |
532 | const char *end = ptr+count; |
533 | while (ptr < end) { |
534 | const char *nl = ptr; |
535 | while (nl < end && *nl++ != '\n') /* empty body */; |
536 | done = PerlIOBuf_write(aTHX_ f, ptr, nl-ptr); |
537 | if (done != nl-ptr) { |
538 | if (done > 0) { |
539 | ptr += done; |
540 | } |
541 | break; |
542 | } |
543 | ptr += done; |
544 | if (ptr[-1] == '\n') { |
545 | if (PerlIOEncode_flush(aTHX_ f) != 0) { |
546 | break; |
547 | } |
548 | } |
549 | } |
550 | return (SSize_t) (ptr - (const char *) vbuf); |
551 | } |
552 | else { |
553 | return PerlIOBuf_write(aTHX_ f, vbuf, count); |
20de0cb2 |
554 | } |
20de0cb2 |
555 | } |
556 | |
59035dcc |
557 | PerlIO_funcs PerlIO_encode = { |
558 | "encoding", |
559 | sizeof(PerlIOEncode), |
560 | PERLIO_K_BUFFERED|PERLIO_K_DESTRUCT, |
561 | PerlIOEncode_pushed, |
562 | PerlIOEncode_popped, |
563 | PerlIOBuf_open, |
564 | PerlIOEncode_getarg, |
565 | PerlIOBase_fileno, |
566 | PerlIOEncode_dup, |
567 | PerlIOBuf_read, |
568 | PerlIOBuf_unread, |
20de0cb2 |
569 | PerlIOEncode_write, |
59035dcc |
570 | PerlIOBuf_seek, |
571 | PerlIOEncode_tell, |
572 | PerlIOEncode_close, |
573 | PerlIOEncode_flush, |
574 | PerlIOEncode_fill, |
575 | PerlIOBase_eof, |
576 | PerlIOBase_error, |
577 | PerlIOBase_clearerr, |
578 | PerlIOBase_setlinebuf, |
579 | PerlIOEncode_get_base, |
580 | PerlIOBuf_bufsiz, |
581 | PerlIOBuf_get_ptr, |
582 | PerlIOBuf_get_cnt, |
583 | PerlIOBuf_set_ptrcnt, |
584 | }; |
585 | #endif /* encode layer */ |
586 | |
587 | MODULE = PerlIO::encoding PACKAGE = PerlIO::encoding |
588 | |
589 | PROTOTYPES: ENABLE |
590 | |
591 | BOOT: |
592 | { |
20de0cb2 |
593 | SV *sv = get_sv("PerlIO::encoding::check", GV_ADD|GV_ADDMULTI); |
594 | sv_setiv(sv,0); |
595 | PUSHMARK(sp); |
596 | PUTBACK; |
597 | if (call_pv(OUR_ENCODE_FB, G_SCALAR) != 1) { |
598 | Perl_warner(aTHX_ packWARN(WARN_IO), |
599 | "Call to %s failed!",OUR_ENCODE_FB); |
600 | } |
601 | else { |
602 | SPAGAIN; |
603 | sv_setsv(sv,POPs); |
604 | PUTBACK; |
605 | } |
59035dcc |
606 | #ifdef PERLIO_LAYERS |
607 | PerlIO_define_layer(aTHX_ &PerlIO_encode); |
608 | #endif |
609 | } |