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760ac839 |
1 | /* perlio.c |
2 | * |
1761cee5 |
3 | * Copyright (c) 1996-2000, Nick Ing-Simmons |
760ac839 |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
8 | */ |
9 | |
10 | #define VOIDUSED 1 |
12ae5dfc |
11 | #ifdef PERL_MICRO |
12 | # include "uconfig.h" |
13 | #else |
14 | # include "config.h" |
15 | #endif |
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16 | |
6f9d8c32 |
17 | #define PERLIO_NOT_STDIO 0 |
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18 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
6f9d8c32 |
19 | /* #define PerlIO FILE */ |
760ac839 |
20 | #endif |
21 | /* |
6f9d8c32 |
22 | * This file provides those parts of PerlIO abstraction |
88b61e10 |
23 | * which are not #defined in perlio.h. |
6f9d8c32 |
24 | * Which these are depends on various Configure #ifdef's |
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25 | */ |
26 | |
27 | #include "EXTERN.h" |
864dbfa3 |
28 | #define PERL_IN_PERLIO_C |
760ac839 |
29 | #include "perl.h" |
30 | |
ac27b0f5 |
31 | #ifndef PERLIO_LAYERS |
32 | int |
33 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) |
34 | { |
95c70f20 |
35 | if (!names || !*names || strEQ(names,":crlf") || strEQ(names,":raw")) |
36 | { |
37 | return 0; |
88b61e10 |
38 | } |
ac27b0f5 |
39 | Perl_croak(aTHX_ "Cannot apply \"%s\" in non-PerlIO perl",names); |
5a2dd417 |
40 | /* NOTREACHED */ |
88b61e10 |
41 | return -1; |
ac27b0f5 |
42 | } |
60382766 |
43 | |
44 | int |
f5b9d040 |
45 | perlsio_binmode(FILE *fp, int iotype, int mode) |
60382766 |
46 | { |
47 | /* This used to be contents of do_binmode in doio.c */ |
48 | #ifdef DOSISH |
49 | # if defined(atarist) || defined(__MINT__) |
f5b9d040 |
50 | if (!fflush(fp)) { |
60382766 |
51 | if (mode & O_BINARY) |
52 | ((FILE*)fp)->_flag |= _IOBIN; |
53 | else |
54 | ((FILE*)fp)->_flag &= ~ _IOBIN; |
55 | return 1; |
56 | } |
57 | return 0; |
58 | # else |
f5b9d040 |
59 | if (PerlLIO_setmode(fileno(fp), mode) != -1) { |
60382766 |
60 | # if defined(WIN32) && defined(__BORLANDC__) |
61 | /* The translation mode of the stream is maintained independent |
62 | * of the translation mode of the fd in the Borland RTL (heavy |
63 | * digging through their runtime sources reveal). User has to |
64 | * set the mode explicitly for the stream (though they don't |
65 | * document this anywhere). GSAR 97-5-24 |
66 | */ |
f5b9d040 |
67 | fseek(fp,0L,0); |
60382766 |
68 | if (mode & O_BINARY) |
f5b9d040 |
69 | fp->flags |= _F_BIN; |
60382766 |
70 | else |
f5b9d040 |
71 | fp->flags &= ~ _F_BIN; |
60382766 |
72 | # endif |
73 | return 1; |
74 | } |
75 | else |
76 | return 0; |
77 | # endif |
78 | #else |
79 | # if defined(USEMYBINMODE) |
80 | if (my_binmode(fp, iotype, mode) != FALSE) |
81 | return 1; |
82 | else |
83 | return 0; |
84 | # else |
85 | return 1; |
86 | # endif |
87 | #endif |
88 | } |
89 | |
f5b9d040 |
90 | int |
91 | PerlIO_binmode(pTHX_ PerlIO *fp, int iotype, int mode, const char *names) |
92 | { |
93 | return perlsio_binmode(fp,iotype,mode); |
94 | } |
60382766 |
95 | |
ac27b0f5 |
96 | #endif |
97 | |
32e30700 |
98 | #if !defined(PERL_IMPLICIT_SYS) |
99 | |
6f9d8c32 |
100 | #ifdef PERLIO_IS_STDIO |
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101 | |
102 | void |
8ac85365 |
103 | PerlIO_init(void) |
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104 | { |
6f9d8c32 |
105 | /* Does nothing (yet) except force this file to be included |
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106 | in perl binary. That allows this file to force inclusion |
6f9d8c32 |
107 | of other functions that may be required by loadable |
108 | extensions e.g. for FileHandle::tmpfile |
760ac839 |
109 | */ |
110 | } |
111 | |
33dcbb9a |
112 | #undef PerlIO_tmpfile |
113 | PerlIO * |
8ac85365 |
114 | PerlIO_tmpfile(void) |
33dcbb9a |
115 | { |
116 | return tmpfile(); |
117 | } |
118 | |
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119 | #else /* PERLIO_IS_STDIO */ |
120 | |
121 | #ifdef USE_SFIO |
122 | |
123 | #undef HAS_FSETPOS |
124 | #undef HAS_FGETPOS |
125 | |
6f9d8c32 |
126 | /* This section is just to make sure these functions |
760ac839 |
127 | get pulled in from libsfio.a |
128 | */ |
129 | |
130 | #undef PerlIO_tmpfile |
131 | PerlIO * |
c78749f2 |
132 | PerlIO_tmpfile(void) |
760ac839 |
133 | { |
134 | return sftmp(0); |
135 | } |
136 | |
137 | void |
c78749f2 |
138 | PerlIO_init(void) |
760ac839 |
139 | { |
6f9d8c32 |
140 | /* Force this file to be included in perl binary. Which allows |
141 | * this file to force inclusion of other functions that may be |
142 | * required by loadable extensions e.g. for FileHandle::tmpfile |
760ac839 |
143 | */ |
144 | |
145 | /* Hack |
146 | * sfio does its own 'autoflush' on stdout in common cases. |
6f9d8c32 |
147 | * Flush results in a lot of lseek()s to regular files and |
760ac839 |
148 | * lot of small writes to pipes. |
149 | */ |
150 | sfset(sfstdout,SF_SHARE,0); |
151 | } |
152 | |
17c3b450 |
153 | #else /* USE_SFIO */ |
6f9d8c32 |
154 | /*======================================================================================*/ |
6f9d8c32 |
155 | /* Implement all the PerlIO interface ourselves. |
9e353e3b |
156 | */ |
760ac839 |
157 | |
76ced9ad |
158 | #include "perliol.h" |
159 | |
b1ef6e3b |
160 | /* We _MUST_ have <unistd.h> if we are using lseek() and may have large files */ |
02f66e2f |
161 | #ifdef I_UNISTD |
162 | #include <unistd.h> |
163 | #endif |
06da4f11 |
164 | #ifdef HAS_MMAP |
165 | #include <sys/mman.h> |
166 | #endif |
167 | |
f3862f8b |
168 | #include "XSUB.h" |
02f66e2f |
169 | |
88b61e10 |
170 | void PerlIO_debug(const char *fmt,...) __attribute__((format(__printf__,1,2))); |
6f9d8c32 |
171 | |
6f9d8c32 |
172 | void |
88b61e10 |
173 | PerlIO_debug(const char *fmt,...) |
6f9d8c32 |
174 | { |
175 | static int dbg = 0; |
88b61e10 |
176 | va_list ap; |
177 | va_start(ap,fmt); |
6f9d8c32 |
178 | if (!dbg) |
179 | { |
00b02797 |
180 | char *s = PerlEnv_getenv("PERLIO_DEBUG"); |
6f9d8c32 |
181 | if (s && *s) |
00b02797 |
182 | dbg = PerlLIO_open3(s,O_WRONLY|O_CREAT|O_APPEND,0666); |
6f9d8c32 |
183 | else |
184 | dbg = -1; |
185 | } |
186 | if (dbg > 0) |
187 | { |
188 | dTHX; |
6f9d8c32 |
189 | SV *sv = newSVpvn("",0); |
190 | char *s; |
191 | STRLEN len; |
05d1247b |
192 | s = CopFILE(PL_curcop); |
193 | if (!s) |
194 | s = "(none)"; |
195 | Perl_sv_catpvf(aTHX_ sv, "%s:%"IVdf" ", s, (IV)CopLINE(PL_curcop)); |
c7fc522f |
196 | Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap); |
197 | |
6f9d8c32 |
198 | s = SvPV(sv,len); |
00b02797 |
199 | PerlLIO_write(dbg,s,len); |
6f9d8c32 |
200 | SvREFCNT_dec(sv); |
201 | } |
88b61e10 |
202 | va_end(ap); |
6f9d8c32 |
203 | } |
204 | |
9e353e3b |
205 | /*--------------------------------------------------------------------------------------*/ |
206 | |
9e353e3b |
207 | /* Inner level routines */ |
208 | |
b1ef6e3b |
209 | /* Table of pointers to the PerlIO structs (malloc'ed) */ |
05d1247b |
210 | PerlIO *_perlio = NULL; |
211 | #define PERLIO_TABLE_SIZE 64 |
6f9d8c32 |
212 | |
760ac839 |
213 | PerlIO * |
6f9d8c32 |
214 | PerlIO_allocate(void) |
215 | { |
f3862f8b |
216 | /* Find a free slot in the table, allocating new table as necessary */ |
05d1247b |
217 | PerlIO **last = &_perlio; |
6f9d8c32 |
218 | PerlIO *f; |
05d1247b |
219 | while ((f = *last)) |
6f9d8c32 |
220 | { |
05d1247b |
221 | int i; |
222 | last = (PerlIO **)(f); |
223 | for (i=1; i < PERLIO_TABLE_SIZE; i++) |
6f9d8c32 |
224 | { |
05d1247b |
225 | if (!*++f) |
6f9d8c32 |
226 | { |
6f9d8c32 |
227 | return f; |
228 | } |
6f9d8c32 |
229 | } |
6f9d8c32 |
230 | } |
05d1247b |
231 | Newz('I',f,PERLIO_TABLE_SIZE,PerlIO); |
232 | if (!f) |
233 | return NULL; |
234 | *last = f; |
235 | return f+1; |
236 | } |
237 | |
238 | void |
239 | PerlIO_cleantable(PerlIO **tablep) |
240 | { |
241 | PerlIO *table = *tablep; |
242 | if (table) |
243 | { |
244 | int i; |
245 | PerlIO_cleantable((PerlIO **) &(table[0])); |
246 | for (i=PERLIO_TABLE_SIZE-1; i > 0; i--) |
247 | { |
248 | PerlIO *f = table+i; |
60382766 |
249 | if (*f) |
3789aae2 |
250 | { |
251 | PerlIO_close(f); |
252 | } |
05d1247b |
253 | } |
254 | Safefree(table); |
255 | *tablep = NULL; |
256 | } |
257 | } |
258 | |
4a4a6116 |
259 | HV *PerlIO_layer_hv; |
260 | AV *PerlIO_layer_av; |
261 | |
05d1247b |
262 | void |
263 | PerlIO_cleanup(void) |
264 | { |
265 | PerlIO_cleantable(&_perlio); |
6f9d8c32 |
266 | } |
267 | |
9e353e3b |
268 | void |
269 | PerlIO_pop(PerlIO *f) |
760ac839 |
270 | { |
9e353e3b |
271 | PerlIOl *l = *f; |
272 | if (l) |
6f9d8c32 |
273 | { |
86295796 |
274 | PerlIO_debug("PerlIO_pop f=%p %s\n",f,l->tab->name); |
06da4f11 |
275 | (*l->tab->Popped)(f); |
9e353e3b |
276 | *f = l->next; |
277 | Safefree(l); |
6f9d8c32 |
278 | } |
6f9d8c32 |
279 | } |
280 | |
9e353e3b |
281 | /*--------------------------------------------------------------------------------------*/ |
b931b1d9 |
282 | /* XS Interface for perl code */ |
9e353e3b |
283 | |
b931b1d9 |
284 | XS(XS_perlio_import) |
f3862f8b |
285 | { |
286 | dXSARGS; |
287 | GV *gv = CvGV(cv); |
288 | char *s = GvNAME(gv); |
289 | STRLEN l = GvNAMELEN(gv); |
290 | PerlIO_debug("%.*s\n",(int) l,s); |
291 | XSRETURN_EMPTY; |
292 | } |
293 | |
b931b1d9 |
294 | XS(XS_perlio_unimport) |
f3862f8b |
295 | { |
296 | dXSARGS; |
297 | GV *gv = CvGV(cv); |
298 | char *s = GvNAME(gv); |
299 | STRLEN l = GvNAMELEN(gv); |
300 | PerlIO_debug("%.*s\n",(int) l,s); |
301 | XSRETURN_EMPTY; |
302 | } |
303 | |
f3862f8b |
304 | SV * |
ac27b0f5 |
305 | PerlIO_find_layer(const char *name, STRLEN len) |
f3862f8b |
306 | { |
307 | dTHX; |
308 | SV **svp; |
309 | SV *sv; |
310 | if (len <= 0) |
311 | len = strlen(name); |
312 | svp = hv_fetch(PerlIO_layer_hv,name,len,0); |
313 | if (svp && (sv = *svp) && SvROK(sv)) |
314 | return *svp; |
315 | return NULL; |
316 | } |
317 | |
b13b2135 |
318 | |
319 | static int |
320 | perlio_mg_set(pTHX_ SV *sv, MAGIC *mg) |
321 | { |
322 | if (SvROK(sv)) |
323 | { |
b931b1d9 |
324 | IO *io = GvIOn((GV *)SvRV(sv)); |
b13b2135 |
325 | PerlIO *ifp = IoIFP(io); |
326 | PerlIO *ofp = IoOFP(io); |
327 | AV *av = (AV *) mg->mg_obj; |
328 | Perl_warn(aTHX_ "set %_ %p %p %p",sv,io,ifp,ofp); |
329 | } |
330 | return 0; |
331 | } |
332 | |
333 | static int |
334 | perlio_mg_get(pTHX_ SV *sv, MAGIC *mg) |
335 | { |
336 | if (SvROK(sv)) |
337 | { |
b931b1d9 |
338 | IO *io = GvIOn((GV *)SvRV(sv)); |
b13b2135 |
339 | PerlIO *ifp = IoIFP(io); |
340 | PerlIO *ofp = IoOFP(io); |
341 | AV *av = (AV *) mg->mg_obj; |
342 | Perl_warn(aTHX_ "get %_ %p %p %p",sv,io,ifp,ofp); |
343 | } |
344 | return 0; |
345 | } |
346 | |
347 | static int |
348 | perlio_mg_clear(pTHX_ SV *sv, MAGIC *mg) |
349 | { |
350 | Perl_warn(aTHX_ "clear %_",sv); |
351 | return 0; |
352 | } |
353 | |
354 | static int |
355 | perlio_mg_free(pTHX_ SV *sv, MAGIC *mg) |
356 | { |
357 | Perl_warn(aTHX_ "free %_",sv); |
358 | return 0; |
359 | } |
360 | |
361 | MGVTBL perlio_vtab = { |
362 | perlio_mg_get, |
363 | perlio_mg_set, |
364 | NULL, /* len */ |
365 | NULL, |
366 | perlio_mg_free |
367 | }; |
368 | |
369 | XS(XS_io_MODIFY_SCALAR_ATTRIBUTES) |
370 | { |
371 | dXSARGS; |
372 | SV *sv = SvRV(ST(1)); |
373 | AV *av = newAV(); |
374 | MAGIC *mg; |
375 | int count = 0; |
376 | int i; |
377 | sv_magic(sv, (SV *)av, '~', NULL, 0); |
378 | SvRMAGICAL_off(sv); |
379 | mg = mg_find(sv,'~'); |
380 | mg->mg_virtual = &perlio_vtab; |
381 | mg_magical(sv); |
382 | Perl_warn(aTHX_ "attrib %_",sv); |
383 | for (i=2; i < items; i++) |
384 | { |
385 | STRLEN len; |
ac27b0f5 |
386 | const char *name = SvPV(ST(i),len); |
b13b2135 |
387 | SV *layer = PerlIO_find_layer(name,len); |
388 | if (layer) |
389 | { |
390 | av_push(av,SvREFCNT_inc(layer)); |
391 | } |
392 | else |
393 | { |
394 | ST(count) = ST(i); |
395 | count++; |
396 | } |
397 | } |
398 | SvREFCNT_dec(av); |
399 | XSRETURN(count); |
400 | } |
401 | |
f3862f8b |
402 | void |
403 | PerlIO_define_layer(PerlIO_funcs *tab) |
404 | { |
405 | dTHX; |
b931b1d9 |
406 | HV *stash = gv_stashpv("perlio::Layer", TRUE); |
e7778b43 |
407 | SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(tab))),stash); |
f3862f8b |
408 | hv_store(PerlIO_layer_hv,tab->name,strlen(tab->name),sv,0); |
409 | } |
410 | |
411 | PerlIO_funcs * |
412 | PerlIO_default_layer(I32 n) |
413 | { |
414 | dTHX; |
415 | SV **svp; |
416 | SV *layer; |
417 | PerlIO_funcs *tab = &PerlIO_stdio; |
418 | int len; |
419 | if (!PerlIO_layer_hv) |
420 | { |
ac27b0f5 |
421 | const char *s = PerlEnv_getenv("PERLIO"); |
b931b1d9 |
422 | newXS("perlio::import",XS_perlio_import,__FILE__); |
423 | newXS("perlio::unimport",XS_perlio_unimport,__FILE__); |
424 | #if 0 |
b13b2135 |
425 | newXS("io::MODIFY_SCALAR_ATTRIBUTES",XS_io_MODIFY_SCALAR_ATTRIBUTES,__FILE__); |
b931b1d9 |
426 | #endif |
427 | PerlIO_layer_hv = get_hv("open::layers",GV_ADD|GV_ADDMULTI); |
428 | PerlIO_layer_av = get_av("open::layers",GV_ADD|GV_ADDMULTI); |
f3862f8b |
429 | PerlIO_define_layer(&PerlIO_unix); |
f3862f8b |
430 | PerlIO_define_layer(&PerlIO_perlio); |
431 | PerlIO_define_layer(&PerlIO_stdio); |
66ecd56b |
432 | PerlIO_define_layer(&PerlIO_crlf); |
06da4f11 |
433 | #ifdef HAS_MMAP |
434 | PerlIO_define_layer(&PerlIO_mmap); |
435 | #endif |
f3862f8b |
436 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_unix.name,0))); |
437 | if (s) |
438 | { |
439 | while (*s) |
440 | { |
00b02797 |
441 | while (*s && isSPACE((unsigned char)*s)) |
f3862f8b |
442 | s++; |
443 | if (*s) |
444 | { |
ac27b0f5 |
445 | const char *e = s; |
f3862f8b |
446 | SV *layer; |
00b02797 |
447 | while (*e && !isSPACE((unsigned char)*e)) |
f3862f8b |
448 | e++; |
ac27b0f5 |
449 | if (*s == ':') |
450 | s++; |
f3862f8b |
451 | layer = PerlIO_find_layer(s,e-s); |
452 | if (layer) |
453 | { |
454 | PerlIO_debug("Pushing %.*s\n",(e-s),s); |
455 | av_push(PerlIO_layer_av,SvREFCNT_inc(layer)); |
456 | } |
457 | else |
ef0f9817 |
458 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(e-s),s); |
f3862f8b |
459 | s = e; |
460 | } |
461 | } |
462 | } |
463 | } |
464 | len = av_len(PerlIO_layer_av); |
465 | if (len < 1) |
466 | { |
f5b9d040 |
467 | if (O_BINARY != O_TEXT) |
f3862f8b |
468 | { |
f5b9d040 |
469 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_crlf.name,0))); |
f3862f8b |
470 | } |
471 | else |
f5b9d040 |
472 | { |
473 | if (PerlIO_stdio.Set_ptrcnt) |
474 | { |
475 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_stdio.name,0))); |
476 | } |
477 | else |
478 | { |
479 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_perlio.name,0))); |
480 | } |
481 | } |
f3862f8b |
482 | len = av_len(PerlIO_layer_av); |
483 | } |
484 | if (n < 0) |
485 | n += len+1; |
486 | svp = av_fetch(PerlIO_layer_av,n,0); |
487 | if (svp && (layer = *svp) && SvROK(layer) && SvIOK((layer = SvRV(layer)))) |
488 | { |
e7778b43 |
489 | tab = INT2PTR(PerlIO_funcs *, SvIV(layer)); |
f3862f8b |
490 | } |
491 | /* PerlIO_debug("Layer %d is %s\n",n,tab->name); */ |
492 | return tab; |
493 | } |
494 | |
60382766 |
495 | #define PerlIO_default_top() PerlIO_default_layer(-1) |
496 | #define PerlIO_default_btm() PerlIO_default_layer(0) |
497 | |
498 | void |
499 | PerlIO_stdstreams() |
500 | { |
501 | if (!_perlio) |
502 | { |
503 | PerlIO_allocate(); |
f5b9d040 |
504 | PerlIO_fdopen(0,"Ir" PERLIO_STDTEXT); |
505 | PerlIO_fdopen(1,"Iw" PERLIO_STDTEXT); |
506 | PerlIO_fdopen(2,"Iw" PERLIO_STDTEXT); |
60382766 |
507 | } |
508 | } |
509 | |
510 | PerlIO * |
511 | PerlIO_push(PerlIO *f,PerlIO_funcs *tab,const char *mode) |
512 | { |
513 | PerlIOl *l = NULL; |
514 | Newc('L',l,tab->size,char,PerlIOl); |
515 | if (l) |
516 | { |
517 | Zero(l,tab->size,char); |
518 | l->next = *f; |
519 | l->tab = tab; |
520 | *f = l; |
86295796 |
521 | PerlIO_debug("PerlIO_push f=%p %s %s\n",f,tab->name,(mode) ? mode : "(Null)"); |
60382766 |
522 | if ((*l->tab->Pushed)(f,mode) != 0) |
523 | { |
524 | PerlIO_pop(f); |
525 | return NULL; |
526 | } |
527 | } |
528 | return f; |
529 | } |
530 | |
ac27b0f5 |
531 | int |
532 | PerlIO_apply_layers(pTHX_ PerlIO *f, const char *mode, const char *names) |
533 | { |
534 | if (names) |
535 | { |
536 | const char *s = names; |
537 | while (*s) |
538 | { |
539 | while (isSPACE(*s)) |
540 | s++; |
541 | if (*s == ':') |
542 | s++; |
543 | if (*s) |
544 | { |
545 | const char *e = s; |
546 | while (*e && *e != ':' && !isSPACE(*e)) |
547 | e++; |
548 | if (e > s) |
549 | { |
60382766 |
550 | if ((e - s) == 3 && strncmp(s,"raw",3) == 0) |
ac27b0f5 |
551 | { |
60382766 |
552 | /* Pop back to bottom layer */ |
553 | if (PerlIONext(f)) |
ac27b0f5 |
554 | { |
60382766 |
555 | PerlIO_flush(f); |
556 | while (PerlIONext(f)) |
557 | { |
558 | PerlIO_pop(f); |
559 | } |
ac27b0f5 |
560 | } |
561 | } |
562 | else |
60382766 |
563 | { |
564 | SV *layer = PerlIO_find_layer(s,e-s); |
565 | if (layer) |
566 | { |
567 | PerlIO_funcs *tab = INT2PTR(PerlIO_funcs *, SvIV(SvRV(layer))); |
568 | if (tab) |
569 | { |
570 | PerlIO *new = PerlIO_push(f,tab,mode); |
571 | if (!new) |
572 | return -1; |
573 | } |
574 | } |
575 | else |
576 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(int)(e-s),s); |
577 | } |
ac27b0f5 |
578 | } |
579 | s = e; |
580 | } |
581 | } |
582 | } |
583 | return 0; |
584 | } |
585 | |
f3862f8b |
586 | |
9e353e3b |
587 | |
60382766 |
588 | /*--------------------------------------------------------------------------------------*/ |
589 | /* Given the abstraction above the public API functions */ |
590 | |
591 | int |
f5b9d040 |
592 | PerlIO_binmode(pTHX_ PerlIO *f, int iotype, int mode, const char *names) |
76ced9ad |
593 | { |
86295796 |
594 | PerlIO_debug("PerlIO_binmode f=%p %s %c %x %s\n", |
f5b9d040 |
595 | f,PerlIOBase(f)->tab->name,iotype,mode, (names) ? names : "(Null)"); |
60382766 |
596 | if (!names || (O_TEXT != O_BINARY && mode & O_BINARY)) |
76ced9ad |
597 | { |
f5b9d040 |
598 | PerlIO *top = f; |
60382766 |
599 | PerlIOl *l; |
600 | while (l = *top) |
76ced9ad |
601 | { |
60382766 |
602 | if (PerlIOBase(top)->tab == &PerlIO_crlf) |
603 | { |
604 | PerlIO_flush(top); |
f5b9d040 |
605 | PerlIOBase(top)->flags &= ~PERLIO_F_CRLF; |
60382766 |
606 | break; |
607 | } |
608 | top = PerlIONext(top); |
76ced9ad |
609 | } |
610 | } |
f5b9d040 |
611 | return PerlIO_apply_layers(aTHX_ f, NULL, names) == 0 ? TRUE : FALSE; |
612 | } |
613 | |
614 | #undef PerlIO__close |
615 | int |
616 | PerlIO__close(PerlIO *f) |
617 | { |
618 | return (*PerlIOBase(f)->tab->Close)(f); |
76ced9ad |
619 | } |
620 | |
f5b9d040 |
621 | |
b931b1d9 |
622 | #undef PerlIO_close |
623 | int |
624 | PerlIO_close(PerlIO *f) |
625 | { |
626 | int code = (*PerlIOBase(f)->tab->Close)(f); |
627 | while (*f) |
628 | { |
629 | PerlIO_pop(f); |
630 | } |
631 | return code; |
632 | } |
633 | |
634 | #undef PerlIO_fileno |
635 | int |
636 | PerlIO_fileno(PerlIO *f) |
637 | { |
638 | return (*PerlIOBase(f)->tab->Fileno)(f); |
639 | } |
640 | |
641 | |
642 | |
9e353e3b |
643 | #undef PerlIO_fdopen |
644 | PerlIO * |
645 | PerlIO_fdopen(int fd, const char *mode) |
646 | { |
647 | PerlIO_funcs *tab = PerlIO_default_top(); |
f3862f8b |
648 | if (!_perlio) |
649 | PerlIO_stdstreams(); |
06da4f11 |
650 | return (*tab->Fdopen)(tab,fd,mode); |
9e353e3b |
651 | } |
652 | |
6f9d8c32 |
653 | #undef PerlIO_open |
654 | PerlIO * |
655 | PerlIO_open(const char *path, const char *mode) |
656 | { |
9e353e3b |
657 | PerlIO_funcs *tab = PerlIO_default_top(); |
f3862f8b |
658 | if (!_perlio) |
659 | PerlIO_stdstreams(); |
06da4f11 |
660 | return (*tab->Open)(tab,path,mode); |
6f9d8c32 |
661 | } |
662 | |
9e353e3b |
663 | #undef PerlIO_reopen |
664 | PerlIO * |
665 | PerlIO_reopen(const char *path, const char *mode, PerlIO *f) |
6f9d8c32 |
666 | { |
9e353e3b |
667 | if (f) |
6f9d8c32 |
668 | { |
9e353e3b |
669 | PerlIO_flush(f); |
670 | if ((*PerlIOBase(f)->tab->Reopen)(path,mode,f) == 0) |
671 | { |
06da4f11 |
672 | if ((*PerlIOBase(f)->tab->Pushed)(f,mode) == 0) |
673 | return f; |
9e353e3b |
674 | } |
675 | return NULL; |
6f9d8c32 |
676 | } |
9e353e3b |
677 | else |
678 | return PerlIO_open(path,mode); |
760ac839 |
679 | } |
680 | |
9e353e3b |
681 | #undef PerlIO_read |
682 | SSize_t |
683 | PerlIO_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 |
684 | { |
9e353e3b |
685 | return (*PerlIOBase(f)->tab->Read)(f,vbuf,count); |
760ac839 |
686 | } |
687 | |
313ca112 |
688 | #undef PerlIO_unread |
689 | SSize_t |
690 | PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count) |
760ac839 |
691 | { |
313ca112 |
692 | return (*PerlIOBase(f)->tab->Unread)(f,vbuf,count); |
760ac839 |
693 | } |
694 | |
9e353e3b |
695 | #undef PerlIO_write |
696 | SSize_t |
697 | PerlIO_write(PerlIO *f, const void *vbuf, Size_t count) |
760ac839 |
698 | { |
9e353e3b |
699 | return (*PerlIOBase(f)->tab->Write)(f,vbuf,count); |
760ac839 |
700 | } |
701 | |
9e353e3b |
702 | #undef PerlIO_seek |
6f9d8c32 |
703 | int |
9e353e3b |
704 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 |
705 | { |
9e353e3b |
706 | return (*PerlIOBase(f)->tab->Seek)(f,offset,whence); |
760ac839 |
707 | } |
708 | |
9e353e3b |
709 | #undef PerlIO_tell |
710 | Off_t |
711 | PerlIO_tell(PerlIO *f) |
760ac839 |
712 | { |
9e353e3b |
713 | return (*PerlIOBase(f)->tab->Tell)(f); |
760ac839 |
714 | } |
715 | |
9e353e3b |
716 | #undef PerlIO_flush |
6f9d8c32 |
717 | int |
9e353e3b |
718 | PerlIO_flush(PerlIO *f) |
760ac839 |
719 | { |
6f9d8c32 |
720 | if (f) |
721 | { |
9e353e3b |
722 | return (*PerlIOBase(f)->tab->Flush)(f); |
6f9d8c32 |
723 | } |
9e353e3b |
724 | else |
6f9d8c32 |
725 | { |
05d1247b |
726 | PerlIO **table = &_perlio; |
9e353e3b |
727 | int code = 0; |
05d1247b |
728 | while ((f = *table)) |
6f9d8c32 |
729 | { |
05d1247b |
730 | int i; |
731 | table = (PerlIO **)(f++); |
732 | for (i=1; i < PERLIO_TABLE_SIZE; i++) |
9e353e3b |
733 | { |
734 | if (*f && PerlIO_flush(f) != 0) |
735 | code = -1; |
05d1247b |
736 | f++; |
9e353e3b |
737 | } |
6f9d8c32 |
738 | } |
9e353e3b |
739 | return code; |
6f9d8c32 |
740 | } |
760ac839 |
741 | } |
742 | |
06da4f11 |
743 | #undef PerlIO_fill |
744 | int |
745 | PerlIO_fill(PerlIO *f) |
746 | { |
747 | return (*PerlIOBase(f)->tab->Fill)(f); |
748 | } |
749 | |
f3862f8b |
750 | #undef PerlIO_isutf8 |
751 | int |
752 | PerlIO_isutf8(PerlIO *f) |
753 | { |
754 | return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0; |
755 | } |
756 | |
9e353e3b |
757 | #undef PerlIO_eof |
6f9d8c32 |
758 | int |
9e353e3b |
759 | PerlIO_eof(PerlIO *f) |
760ac839 |
760 | { |
9e353e3b |
761 | return (*PerlIOBase(f)->tab->Eof)(f); |
762 | } |
763 | |
764 | #undef PerlIO_error |
765 | int |
766 | PerlIO_error(PerlIO *f) |
767 | { |
768 | return (*PerlIOBase(f)->tab->Error)(f); |
769 | } |
770 | |
771 | #undef PerlIO_clearerr |
772 | void |
773 | PerlIO_clearerr(PerlIO *f) |
774 | { |
f5b9d040 |
775 | if (f && *f) |
776 | (*PerlIOBase(f)->tab->Clearerr)(f); |
9e353e3b |
777 | } |
778 | |
779 | #undef PerlIO_setlinebuf |
780 | void |
781 | PerlIO_setlinebuf(PerlIO *f) |
782 | { |
783 | (*PerlIOBase(f)->tab->Setlinebuf)(f); |
784 | } |
785 | |
786 | #undef PerlIO_has_base |
787 | int |
788 | PerlIO_has_base(PerlIO *f) |
789 | { |
790 | if (f && *f) |
6f9d8c32 |
791 | { |
9e353e3b |
792 | return (PerlIOBase(f)->tab->Get_base != NULL); |
6f9d8c32 |
793 | } |
9e353e3b |
794 | return 0; |
760ac839 |
795 | } |
796 | |
9e353e3b |
797 | #undef PerlIO_fast_gets |
798 | int |
799 | PerlIO_fast_gets(PerlIO *f) |
760ac839 |
800 | { |
9e353e3b |
801 | if (f && *f) |
6f9d8c32 |
802 | { |
c7fc522f |
803 | PerlIOl *l = PerlIOBase(f); |
804 | return (l->tab->Set_ptrcnt != NULL); |
6f9d8c32 |
805 | } |
9e353e3b |
806 | return 0; |
807 | } |
808 | |
809 | #undef PerlIO_has_cntptr |
810 | int |
811 | PerlIO_has_cntptr(PerlIO *f) |
812 | { |
813 | if (f && *f) |
814 | { |
815 | PerlIO_funcs *tab = PerlIOBase(f)->tab; |
816 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); |
817 | } |
818 | return 0; |
819 | } |
820 | |
821 | #undef PerlIO_canset_cnt |
822 | int |
823 | PerlIO_canset_cnt(PerlIO *f) |
824 | { |
825 | if (f && *f) |
826 | { |
c7fc522f |
827 | PerlIOl *l = PerlIOBase(f); |
828 | return (l->tab->Set_ptrcnt != NULL); |
9e353e3b |
829 | } |
c7fc522f |
830 | return 0; |
760ac839 |
831 | } |
832 | |
833 | #undef PerlIO_get_base |
888911fc |
834 | STDCHAR * |
a20bf0c3 |
835 | PerlIO_get_base(PerlIO *f) |
760ac839 |
836 | { |
9e353e3b |
837 | return (*PerlIOBase(f)->tab->Get_base)(f); |
838 | } |
839 | |
840 | #undef PerlIO_get_bufsiz |
841 | int |
842 | PerlIO_get_bufsiz(PerlIO *f) |
843 | { |
844 | return (*PerlIOBase(f)->tab->Get_bufsiz)(f); |
845 | } |
846 | |
847 | #undef PerlIO_get_ptr |
848 | STDCHAR * |
849 | PerlIO_get_ptr(PerlIO *f) |
850 | { |
851 | return (*PerlIOBase(f)->tab->Get_ptr)(f); |
852 | } |
853 | |
854 | #undef PerlIO_get_cnt |
05d1247b |
855 | int |
9e353e3b |
856 | PerlIO_get_cnt(PerlIO *f) |
857 | { |
858 | return (*PerlIOBase(f)->tab->Get_cnt)(f); |
859 | } |
860 | |
861 | #undef PerlIO_set_cnt |
862 | void |
05d1247b |
863 | PerlIO_set_cnt(PerlIO *f,int cnt) |
9e353e3b |
864 | { |
f3862f8b |
865 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt); |
9e353e3b |
866 | } |
867 | |
868 | #undef PerlIO_set_ptrcnt |
869 | void |
05d1247b |
870 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) |
9e353e3b |
871 | { |
f3862f8b |
872 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt); |
9e353e3b |
873 | } |
874 | |
875 | /*--------------------------------------------------------------------------------------*/ |
876 | /* "Methods" of the "base class" */ |
877 | |
878 | IV |
879 | PerlIOBase_fileno(PerlIO *f) |
880 | { |
881 | return PerlIO_fileno(PerlIONext(f)); |
882 | } |
883 | |
f5b9d040 |
884 | char * |
885 | PerlIO_modestr(PerlIO *f,char *buf) |
886 | { |
887 | char *s = buf; |
888 | IV flags = PerlIOBase(f)->flags; |
889 | if (flags & PERLIO_F_CANREAD) |
890 | *s++ = 'r'; |
891 | if (flags & PERLIO_F_CANWRITE) |
892 | *s++ = 'w'; |
893 | if (flags & PERLIO_F_CRLF) |
894 | *s++ = 't'; |
895 | else |
896 | *s++ = 'b'; |
897 | *s = '\0'; |
898 | return buf; |
899 | } |
900 | |
76ced9ad |
901 | IV |
902 | PerlIOBase_pushed(PerlIO *f, const char *mode) |
9e353e3b |
903 | { |
76ced9ad |
904 | PerlIOl *l = PerlIOBase(f); |
f5b9d040 |
905 | const char *omode = mode; |
906 | char temp[8]; |
76ced9ad |
907 | l->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE| |
f5b9d040 |
908 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND); |
76ced9ad |
909 | if (mode) |
6f9d8c32 |
910 | { |
76ced9ad |
911 | switch (*mode++) |
06da4f11 |
912 | { |
76ced9ad |
913 | case 'r': |
f5b9d040 |
914 | l->flags |= PERLIO_F_CANREAD; |
76ced9ad |
915 | break; |
916 | case 'a': |
f5b9d040 |
917 | l->flags |= PERLIO_F_APPEND|PERLIO_F_CANWRITE; |
76ced9ad |
918 | break; |
919 | case 'w': |
f5b9d040 |
920 | l->flags |= PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE; |
76ced9ad |
921 | break; |
922 | default: |
923 | errno = EINVAL; |
924 | return -1; |
925 | } |
926 | while (*mode) |
927 | { |
928 | switch (*mode++) |
929 | { |
930 | case '+': |
931 | l->flags |= PERLIO_F_CANREAD|PERLIO_F_CANWRITE; |
932 | break; |
933 | case 'b': |
f5b9d040 |
934 | l->flags &= ~PERLIO_F_CRLF; |
935 | break; |
936 | case 't': |
937 | l->flags |= PERLIO_F_CRLF; |
76ced9ad |
938 | break; |
939 | default: |
940 | errno = EINVAL; |
941 | return -1; |
942 | } |
06da4f11 |
943 | } |
6f9d8c32 |
944 | } |
76ced9ad |
945 | else |
946 | { |
947 | if (l->next) |
948 | { |
949 | l->flags |= l->next->flags & |
f5b9d040 |
950 | (PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_TRUNCATE|PERLIO_F_APPEND); |
76ced9ad |
951 | } |
952 | } |
86295796 |
953 | PerlIO_debug("PerlIOBase_pushed f=%p %s %s fl=%08x (%s)\n", |
f5b9d040 |
954 | f,PerlIOBase(f)->tab->name,(omode) ? omode : "(Null)", |
955 | l->flags,PerlIO_modestr(f,temp)); |
76ced9ad |
956 | return 0; |
957 | } |
958 | |
959 | IV |
960 | PerlIOBase_popped(PerlIO *f) |
961 | { |
962 | return 0; |
760ac839 |
963 | } |
964 | |
9e353e3b |
965 | SSize_t |
966 | PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count) |
967 | { |
968 | Off_t old = PerlIO_tell(f); |
969 | if (PerlIO_seek(f,-((Off_t)count),SEEK_CUR) == 0) |
970 | { |
971 | Off_t new = PerlIO_tell(f); |
972 | return old - new; |
973 | } |
974 | return 0; |
975 | } |
976 | |
977 | IV |
06da4f11 |
978 | PerlIOBase_noop_ok(PerlIO *f) |
9e353e3b |
979 | { |
980 | return 0; |
981 | } |
982 | |
983 | IV |
06da4f11 |
984 | PerlIOBase_noop_fail(PerlIO *f) |
985 | { |
986 | return -1; |
987 | } |
988 | |
989 | IV |
9e353e3b |
990 | PerlIOBase_close(PerlIO *f) |
991 | { |
992 | IV code = 0; |
f5b9d040 |
993 | PerlIO *n = PerlIONext(f); |
9e353e3b |
994 | if (PerlIO_flush(f) != 0) |
995 | code = -1; |
f5b9d040 |
996 | if (n && (*PerlIOBase(n)->tab->Close)(n) != 0) |
9e353e3b |
997 | code = -1; |
998 | PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN); |
999 | return code; |
1000 | } |
1001 | |
1002 | IV |
1003 | PerlIOBase_eof(PerlIO *f) |
1004 | { |
1005 | if (f && *f) |
1006 | { |
1007 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; |
1008 | } |
1009 | return 1; |
1010 | } |
1011 | |
1012 | IV |
1013 | PerlIOBase_error(PerlIO *f) |
1014 | { |
1015 | if (f && *f) |
1016 | { |
1017 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; |
1018 | } |
1019 | return 1; |
1020 | } |
1021 | |
1022 | void |
1023 | PerlIOBase_clearerr(PerlIO *f) |
1024 | { |
1025 | if (f && *f) |
1026 | { |
f5b9d040 |
1027 | PerlIO *n = PerlIONext(f); |
1028 | PerlIOBase(f)->flags &= ~(PERLIO_F_ERROR|PERLIO_F_EOF); |
1029 | if (n) |
1030 | PerlIO_clearerr(n); |
9e353e3b |
1031 | } |
1032 | } |
1033 | |
1034 | void |
1035 | PerlIOBase_setlinebuf(PerlIO *f) |
1036 | { |
1037 | |
1038 | } |
1039 | |
9e353e3b |
1040 | /*--------------------------------------------------------------------------------------*/ |
1041 | /* Bottom-most level for UNIX-like case */ |
1042 | |
1043 | typedef struct |
1044 | { |
1045 | struct _PerlIO base; /* The generic part */ |
1046 | int fd; /* UNIX like file descriptor */ |
1047 | int oflags; /* open/fcntl flags */ |
1048 | } PerlIOUnix; |
1049 | |
6f9d8c32 |
1050 | int |
9e353e3b |
1051 | PerlIOUnix_oflags(const char *mode) |
760ac839 |
1052 | { |
9e353e3b |
1053 | int oflags = -1; |
1054 | switch(*mode) |
1055 | { |
1056 | case 'r': |
1057 | oflags = O_RDONLY; |
1058 | if (*++mode == '+') |
1059 | { |
1060 | oflags = O_RDWR; |
1061 | mode++; |
1062 | } |
1063 | break; |
1064 | |
1065 | case 'w': |
1066 | oflags = O_CREAT|O_TRUNC; |
1067 | if (*++mode == '+') |
1068 | { |
1069 | oflags |= O_RDWR; |
1070 | mode++; |
1071 | } |
1072 | else |
1073 | oflags |= O_WRONLY; |
1074 | break; |
1075 | |
1076 | case 'a': |
1077 | oflags = O_CREAT|O_APPEND; |
1078 | if (*++mode == '+') |
1079 | { |
1080 | oflags |= O_RDWR; |
1081 | mode++; |
1082 | } |
1083 | else |
1084 | oflags |= O_WRONLY; |
1085 | break; |
1086 | } |
83b075c3 |
1087 | if (*mode == 'b') |
1088 | { |
f5b9d040 |
1089 | oflags |= O_BINARY; |
1090 | oflags &= ~O_TEXT; |
1091 | mode++; |
1092 | } |
1093 | else if (*mode == 't') |
1094 | { |
1095 | oflags |= O_TEXT; |
1096 | oflags &= ~O_BINARY; |
60382766 |
1097 | mode++; |
1098 | } |
99efab12 |
1099 | /* Always open in binary mode */ |
1100 | oflags |= O_BINARY; |
9e353e3b |
1101 | if (*mode || oflags == -1) |
6f9d8c32 |
1102 | { |
9e353e3b |
1103 | errno = EINVAL; |
1104 | oflags = -1; |
6f9d8c32 |
1105 | } |
9e353e3b |
1106 | return oflags; |
1107 | } |
1108 | |
1109 | IV |
1110 | PerlIOUnix_fileno(PerlIO *f) |
1111 | { |
1112 | return PerlIOSelf(f,PerlIOUnix)->fd; |
1113 | } |
1114 | |
1115 | PerlIO * |
06da4f11 |
1116 | PerlIOUnix_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b |
1117 | { |
1118 | PerlIO *f = NULL; |
c7fc522f |
1119 | if (*mode == 'I') |
1120 | mode++; |
9e353e3b |
1121 | if (fd >= 0) |
1122 | { |
1123 | int oflags = PerlIOUnix_oflags(mode); |
1124 | if (oflags != -1) |
1125 | { |
06da4f11 |
1126 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOUnix); |
9e353e3b |
1127 | s->fd = fd; |
1128 | s->oflags = oflags; |
1129 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; |
1130 | } |
1131 | } |
1132 | return f; |
1133 | } |
1134 | |
1135 | PerlIO * |
06da4f11 |
1136 | PerlIOUnix_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b |
1137 | { |
1138 | PerlIO *f = NULL; |
1139 | int oflags = PerlIOUnix_oflags(mode); |
1140 | if (oflags != -1) |
1141 | { |
00b02797 |
1142 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b |
1143 | if (fd >= 0) |
1144 | { |
06da4f11 |
1145 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOUnix); |
9e353e3b |
1146 | s->fd = fd; |
1147 | s->oflags = oflags; |
1148 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; |
1149 | } |
1150 | } |
1151 | return f; |
760ac839 |
1152 | } |
1153 | |
760ac839 |
1154 | int |
9e353e3b |
1155 | PerlIOUnix_reopen(const char *path, const char *mode, PerlIO *f) |
760ac839 |
1156 | { |
9e353e3b |
1157 | PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix); |
1158 | int oflags = PerlIOUnix_oflags(mode); |
1159 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) |
1160 | (*PerlIOBase(f)->tab->Close)(f); |
1161 | if (oflags != -1) |
1162 | { |
00b02797 |
1163 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b |
1164 | if (fd >= 0) |
1165 | { |
1166 | s->fd = fd; |
1167 | s->oflags = oflags; |
1168 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; |
1169 | return 0; |
1170 | } |
1171 | } |
1172 | return -1; |
1173 | } |
1174 | |
1175 | SSize_t |
1176 | PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count) |
1177 | { |
1178 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
8f24bd79 |
1179 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
1180 | return 0; |
9e353e3b |
1181 | while (1) |
1182 | { |
00b02797 |
1183 | SSize_t len = PerlLIO_read(fd,vbuf,count); |
9e353e3b |
1184 | if (len >= 0 || errno != EINTR) |
06da4f11 |
1185 | { |
1186 | if (len < 0) |
1187 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
1188 | else if (len == 0 && count != 0) |
1189 | PerlIOBase(f)->flags |= PERLIO_F_EOF; |
1190 | return len; |
1191 | } |
9e353e3b |
1192 | } |
1193 | } |
1194 | |
1195 | SSize_t |
1196 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) |
1197 | { |
1198 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
1199 | while (1) |
1200 | { |
00b02797 |
1201 | SSize_t len = PerlLIO_write(fd,vbuf,count); |
9e353e3b |
1202 | if (len >= 0 || errno != EINTR) |
06da4f11 |
1203 | { |
1204 | if (len < 0) |
1205 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
1206 | return len; |
1207 | } |
9e353e3b |
1208 | } |
1209 | } |
1210 | |
1211 | IV |
1212 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) |
1213 | { |
00b02797 |
1214 | Off_t new = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence); |
06da4f11 |
1215 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
9e353e3b |
1216 | return (new == (Off_t) -1) ? -1 : 0; |
1217 | } |
1218 | |
1219 | Off_t |
1220 | PerlIOUnix_tell(PerlIO *f) |
1221 | { |
00b02797 |
1222 | return PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
9e353e3b |
1223 | } |
1224 | |
1225 | IV |
1226 | PerlIOUnix_close(PerlIO *f) |
1227 | { |
1228 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; |
1229 | int code = 0; |
00b02797 |
1230 | while (PerlLIO_close(fd) != 0) |
9e353e3b |
1231 | { |
1232 | if (errno != EINTR) |
1233 | { |
1234 | code = -1; |
1235 | break; |
1236 | } |
1237 | } |
1238 | if (code == 0) |
1239 | { |
1240 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; |
1241 | } |
1242 | return code; |
1243 | } |
1244 | |
1245 | PerlIO_funcs PerlIO_unix = { |
1246 | "unix", |
1247 | sizeof(PerlIOUnix), |
f5b9d040 |
1248 | PERLIO_K_RAW, |
9e353e3b |
1249 | PerlIOUnix_fileno, |
1250 | PerlIOUnix_fdopen, |
1251 | PerlIOUnix_open, |
1252 | PerlIOUnix_reopen, |
06da4f11 |
1253 | PerlIOBase_pushed, |
1254 | PerlIOBase_noop_ok, |
9e353e3b |
1255 | PerlIOUnix_read, |
1256 | PerlIOBase_unread, |
1257 | PerlIOUnix_write, |
1258 | PerlIOUnix_seek, |
1259 | PerlIOUnix_tell, |
1260 | PerlIOUnix_close, |
76ced9ad |
1261 | PerlIOBase_noop_ok, /* flush */ |
1262 | PerlIOBase_noop_fail, /* fill */ |
9e353e3b |
1263 | PerlIOBase_eof, |
1264 | PerlIOBase_error, |
1265 | PerlIOBase_clearerr, |
1266 | PerlIOBase_setlinebuf, |
1267 | NULL, /* get_base */ |
1268 | NULL, /* get_bufsiz */ |
1269 | NULL, /* get_ptr */ |
1270 | NULL, /* get_cnt */ |
1271 | NULL, /* set_ptrcnt */ |
1272 | }; |
1273 | |
1274 | /*--------------------------------------------------------------------------------------*/ |
1275 | /* stdio as a layer */ |
1276 | |
1277 | typedef struct |
1278 | { |
1279 | struct _PerlIO base; |
1280 | FILE * stdio; /* The stream */ |
1281 | } PerlIOStdio; |
1282 | |
1283 | IV |
1284 | PerlIOStdio_fileno(PerlIO *f) |
1285 | { |
1286 | return fileno(PerlIOSelf(f,PerlIOStdio)->stdio); |
1287 | } |
1288 | |
f5b9d040 |
1289 | const char * |
1290 | PerlIOStdio_mode(const char *mode,char *tmode) |
1291 | { |
1292 | const char *ret = mode; |
1293 | if (O_BINARY != O_TEXT) |
1294 | { |
1295 | ret = (const char *) tmode; |
1296 | while (*mode) |
1297 | { |
1298 | *tmode++ = *mode++; |
1299 | } |
1300 | *tmode++ = 'b'; |
1301 | *tmode = '\0'; |
1302 | } |
1303 | return ret; |
1304 | } |
9e353e3b |
1305 | |
1306 | PerlIO * |
06da4f11 |
1307 | PerlIOStdio_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b |
1308 | { |
1309 | PerlIO *f = NULL; |
c7fc522f |
1310 | int init = 0; |
f5b9d040 |
1311 | char tmode[8]; |
c7fc522f |
1312 | if (*mode == 'I') |
1313 | { |
1314 | init = 1; |
1315 | mode++; |
1316 | } |
9e353e3b |
1317 | if (fd >= 0) |
1318 | { |
c7fc522f |
1319 | FILE *stdio = NULL; |
1320 | if (init) |
1321 | { |
1322 | switch(fd) |
1323 | { |
1324 | case 0: |
1325 | stdio = stdin; |
1326 | break; |
1327 | case 1: |
1328 | stdio = stdout; |
1329 | break; |
1330 | case 2: |
1331 | stdio = stderr; |
1332 | break; |
1333 | } |
1334 | } |
1335 | else |
f5b9d040 |
1336 | { |
1337 | stdio = fdopen(fd,mode = PerlIOStdio_mode(mode,tmode)); |
1338 | } |
9e353e3b |
1339 | if (stdio) |
1340 | { |
06da4f11 |
1341 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOStdio); |
9e353e3b |
1342 | s->stdio = stdio; |
1343 | } |
1344 | } |
1345 | return f; |
1346 | } |
1347 | |
1348 | #undef PerlIO_importFILE |
1349 | PerlIO * |
1350 | PerlIO_importFILE(FILE *stdio, int fl) |
1351 | { |
1352 | PerlIO *f = NULL; |
1353 | if (stdio) |
1354 | { |
1355 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,"r+"),PerlIOStdio); |
1356 | s->stdio = stdio; |
1357 | } |
1358 | return f; |
1359 | } |
1360 | |
1361 | PerlIO * |
06da4f11 |
1362 | PerlIOStdio_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b |
1363 | { |
1364 | PerlIO *f = NULL; |
1365 | FILE *stdio = fopen(path,mode); |
1366 | if (stdio) |
1367 | { |
f5b9d040 |
1368 | char tmode[8]; |
1369 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(), self, |
1370 | (mode = PerlIOStdio_mode(mode,tmode))), |
1371 | PerlIOStdio); |
9e353e3b |
1372 | s->stdio = stdio; |
1373 | } |
1374 | return f; |
760ac839 |
1375 | } |
1376 | |
6f9d8c32 |
1377 | int |
9e353e3b |
1378 | PerlIOStdio_reopen(const char *path, const char *mode, PerlIO *f) |
1379 | { |
1380 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); |
f5b9d040 |
1381 | char tmode[8]; |
1382 | FILE *stdio = freopen(path,(mode = PerlIOStdio_mode(mode,tmode)),s->stdio); |
9e353e3b |
1383 | if (!s->stdio) |
1384 | return -1; |
1385 | s->stdio = stdio; |
1386 | return 0; |
1387 | } |
1388 | |
1389 | SSize_t |
1390 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) |
1391 | { |
1392 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
c7fc522f |
1393 | SSize_t got = 0; |
9e353e3b |
1394 | if (count == 1) |
1395 | { |
1396 | STDCHAR *buf = (STDCHAR *) vbuf; |
1397 | /* Perl is expecting PerlIO_getc() to fill the buffer |
1398 | * Linux's stdio does not do that for fread() |
1399 | */ |
1400 | int ch = fgetc(s); |
1401 | if (ch != EOF) |
1402 | { |
1403 | *buf = ch; |
c7fc522f |
1404 | got = 1; |
9e353e3b |
1405 | } |
9e353e3b |
1406 | } |
c7fc522f |
1407 | else |
1408 | got = fread(vbuf,1,count,s); |
1409 | return got; |
9e353e3b |
1410 | } |
1411 | |
1412 | SSize_t |
1413 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) |
1414 | { |
1415 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; |
1416 | STDCHAR *buf = ((STDCHAR *)vbuf)+count-1; |
1417 | SSize_t unread = 0; |
1418 | while (count > 0) |
1419 | { |
1420 | int ch = *buf-- & 0xff; |
1421 | if (ungetc(ch,s) != ch) |
1422 | break; |
1423 | unread++; |
1424 | count--; |
1425 | } |
1426 | return unread; |
1427 | } |
1428 | |
1429 | SSize_t |
1430 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) |
1431 | { |
1432 | return fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio); |
1433 | } |
1434 | |
1435 | IV |
1436 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) |
1437 | { |
c7fc522f |
1438 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1439 | return fseek(stdio,offset,whence); |
9e353e3b |
1440 | } |
1441 | |
1442 | Off_t |
1443 | PerlIOStdio_tell(PerlIO *f) |
1444 | { |
c7fc522f |
1445 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1446 | return ftell(stdio); |
9e353e3b |
1447 | } |
1448 | |
1449 | IV |
1450 | PerlIOStdio_close(PerlIO *f) |
1451 | { |
cf829ab0 |
1452 | int optval, optlen = sizeof(int); |
3789aae2 |
1453 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
cf829ab0 |
1454 | return( |
1455 | (getsockopt(PerlIO_fileno(f), SOL_SOCKET, SO_TYPE, (char *)&optval, &optlen) < 0) ? |
1456 | fclose(stdio) : |
1457 | close(PerlIO_fileno(f))); |
9e353e3b |
1458 | } |
1459 | |
1460 | IV |
1461 | PerlIOStdio_flush(PerlIO *f) |
1462 | { |
1463 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
88b61e10 |
1464 | if (PerlIOBase(f)->flags & PERLIO_F_CANWRITE) |
1465 | { |
1466 | return fflush(stdio); |
1467 | } |
1468 | else |
1469 | { |
1470 | #if 0 |
1471 | /* FIXME: This discards ungetc() and pre-read stuff which is |
1472 | not right if this is just a "sync" from a layer above |
1473 | Suspect right design is to do _this_ but not have layer above |
1474 | flush this layer read-to-read |
1475 | */ |
1476 | /* Not writeable - sync by attempting a seek */ |
1477 | int err = errno; |
1478 | if (fseek(stdio,(Off_t) 0, SEEK_CUR) != 0) |
1479 | errno = err; |
1480 | #endif |
1481 | } |
1482 | return 0; |
9e353e3b |
1483 | } |
1484 | |
1485 | IV |
06da4f11 |
1486 | PerlIOStdio_fill(PerlIO *f) |
1487 | { |
1488 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1489 | int c; |
3789aae2 |
1490 | /* fflush()ing read-only streams can cause trouble on some stdio-s */ |
1491 | if ((PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
1492 | { |
1493 | if (fflush(stdio) != 0) |
1494 | return EOF; |
1495 | } |
06da4f11 |
1496 | c = fgetc(stdio); |
1497 | if (c == EOF || ungetc(c,stdio) != c) |
1498 | return EOF; |
1499 | return 0; |
1500 | } |
1501 | |
1502 | IV |
9e353e3b |
1503 | PerlIOStdio_eof(PerlIO *f) |
1504 | { |
1505 | return feof(PerlIOSelf(f,PerlIOStdio)->stdio); |
1506 | } |
1507 | |
1508 | IV |
1509 | PerlIOStdio_error(PerlIO *f) |
1510 | { |
1511 | return ferror(PerlIOSelf(f,PerlIOStdio)->stdio); |
1512 | } |
1513 | |
1514 | void |
1515 | PerlIOStdio_clearerr(PerlIO *f) |
1516 | { |
1517 | clearerr(PerlIOSelf(f,PerlIOStdio)->stdio); |
1518 | } |
1519 | |
1520 | void |
1521 | PerlIOStdio_setlinebuf(PerlIO *f) |
1522 | { |
1523 | #ifdef HAS_SETLINEBUF |
1524 | setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio); |
1525 | #else |
1526 | setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0); |
1527 | #endif |
1528 | } |
1529 | |
1530 | #ifdef FILE_base |
1531 | STDCHAR * |
1532 | PerlIOStdio_get_base(PerlIO *f) |
1533 | { |
1534 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1535 | return FILE_base(stdio); |
1536 | } |
1537 | |
1538 | Size_t |
1539 | PerlIOStdio_get_bufsiz(PerlIO *f) |
1540 | { |
1541 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1542 | return FILE_bufsiz(stdio); |
1543 | } |
1544 | #endif |
1545 | |
1546 | #ifdef USE_STDIO_PTR |
1547 | STDCHAR * |
1548 | PerlIOStdio_get_ptr(PerlIO *f) |
1549 | { |
1550 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1551 | return FILE_ptr(stdio); |
1552 | } |
1553 | |
1554 | SSize_t |
1555 | PerlIOStdio_get_cnt(PerlIO *f) |
1556 | { |
1557 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1558 | return FILE_cnt(stdio); |
1559 | } |
1560 | |
1561 | void |
1562 | PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt) |
1563 | { |
1564 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1565 | if (ptr != NULL) |
1566 | { |
1567 | #ifdef STDIO_PTR_LVALUE |
1568 | FILE_ptr(stdio) = ptr; |
1569 | #ifdef STDIO_PTR_LVAL_SETS_CNT |
1570 | if (FILE_cnt(stdio) != (cnt)) |
1571 | { |
1572 | dTHX; |
1573 | assert(FILE_cnt(stdio) == (cnt)); |
1574 | } |
1575 | #endif |
1576 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) |
1577 | /* Setting ptr _does_ change cnt - we are done */ |
1578 | return; |
1579 | #endif |
1580 | #else /* STDIO_PTR_LVALUE */ |
1581 | abort(); |
1582 | #endif /* STDIO_PTR_LVALUE */ |
1583 | } |
1584 | /* Now (or only) set cnt */ |
1585 | #ifdef STDIO_CNT_LVALUE |
1586 | FILE_cnt(stdio) = cnt; |
1587 | #else /* STDIO_CNT_LVALUE */ |
1588 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) |
1589 | FILE_ptr(stdio) = FILE_ptr(stdio)+(FILE_cnt(stdio)-cnt); |
1590 | #else /* STDIO_PTR_LVAL_SETS_CNT */ |
1591 | abort(); |
1592 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ |
1593 | #endif /* STDIO_CNT_LVALUE */ |
1594 | } |
1595 | |
1596 | #endif |
1597 | |
1598 | PerlIO_funcs PerlIO_stdio = { |
1599 | "stdio", |
1600 | sizeof(PerlIOStdio), |
f5b9d040 |
1601 | PERLIO_K_BUFFERED, |
9e353e3b |
1602 | PerlIOStdio_fileno, |
1603 | PerlIOStdio_fdopen, |
1604 | PerlIOStdio_open, |
1605 | PerlIOStdio_reopen, |
06da4f11 |
1606 | PerlIOBase_pushed, |
1607 | PerlIOBase_noop_ok, |
9e353e3b |
1608 | PerlIOStdio_read, |
1609 | PerlIOStdio_unread, |
1610 | PerlIOStdio_write, |
1611 | PerlIOStdio_seek, |
1612 | PerlIOStdio_tell, |
1613 | PerlIOStdio_close, |
1614 | PerlIOStdio_flush, |
06da4f11 |
1615 | PerlIOStdio_fill, |
9e353e3b |
1616 | PerlIOStdio_eof, |
1617 | PerlIOStdio_error, |
1618 | PerlIOStdio_clearerr, |
1619 | PerlIOStdio_setlinebuf, |
1620 | #ifdef FILE_base |
1621 | PerlIOStdio_get_base, |
1622 | PerlIOStdio_get_bufsiz, |
1623 | #else |
1624 | NULL, |
1625 | NULL, |
1626 | #endif |
1627 | #ifdef USE_STDIO_PTR |
1628 | PerlIOStdio_get_ptr, |
1629 | PerlIOStdio_get_cnt, |
0eb1d8a4 |
1630 | #if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) |
9e353e3b |
1631 | PerlIOStdio_set_ptrcnt |
1632 | #else /* STDIO_PTR_LVALUE */ |
1633 | NULL |
1634 | #endif /* STDIO_PTR_LVALUE */ |
1635 | #else /* USE_STDIO_PTR */ |
1636 | NULL, |
1637 | NULL, |
1638 | NULL |
1639 | #endif /* USE_STDIO_PTR */ |
1640 | }; |
1641 | |
1642 | #undef PerlIO_exportFILE |
1643 | FILE * |
1644 | PerlIO_exportFILE(PerlIO *f, int fl) |
1645 | { |
1646 | PerlIO_flush(f); |
1647 | /* Should really push stdio discipline when we have them */ |
1648 | return fdopen(PerlIO_fileno(f),"r+"); |
1649 | } |
1650 | |
1651 | #undef PerlIO_findFILE |
1652 | FILE * |
1653 | PerlIO_findFILE(PerlIO *f) |
1654 | { |
1655 | return PerlIO_exportFILE(f,0); |
1656 | } |
1657 | |
1658 | #undef PerlIO_releaseFILE |
1659 | void |
1660 | PerlIO_releaseFILE(PerlIO *p, FILE *f) |
1661 | { |
1662 | } |
1663 | |
1664 | /*--------------------------------------------------------------------------------------*/ |
1665 | /* perlio buffer layer */ |
1666 | |
9e353e3b |
1667 | PerlIO * |
06da4f11 |
1668 | PerlIOBuf_fdopen(PerlIO_funcs *self, int fd, const char *mode) |
9e353e3b |
1669 | { |
1670 | PerlIO_funcs *tab = PerlIO_default_btm(); |
c7fc522f |
1671 | int init = 0; |
1672 | PerlIO *f; |
1673 | if (*mode == 'I') |
1674 | { |
1675 | init = 1; |
1676 | mode++; |
a77df51f |
1677 | } |
10cbe18a |
1678 | #if O_BINARY != O_TEXT |
a77df51f |
1679 | { |
1680 | int code = PerlLIO_setmode(fd, O_BINARY); |
10cbe18a |
1681 | /* do something about failing setmode()? --jhi */ |
86295796 |
1682 | PerlIO_debug("PerlIOBuf_fdopen %s fd=%d m=%s c=%d\n",tab->name,fd,mode,code); |
c7fc522f |
1683 | } |
10cbe18a |
1684 | #endif |
06da4f11 |
1685 | f = (*tab->Fdopen)(tab,fd,mode); |
6f9d8c32 |
1686 | if (f) |
1687 | { |
f5b9d040 |
1688 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,mode),PerlIOBuf); |
1689 | b->posn = PerlIO_tell(PerlIONext(f)); |
1690 | if (init && fd == 2) |
c7fc522f |
1691 | { |
f5b9d040 |
1692 | /* Initial stderr is unbuffered */ |
1693 | PerlIOBase(f)->flags |= PERLIO_F_UNBUF; |
1694 | } |
86295796 |
1695 | PerlIO_debug("PerlIOBuf_fdopen %s f=%p fd=%d m=%s fl=%08x\n", |
f5b9d040 |
1696 | self->name,f,fd,mode,PerlIOBase(f)->flags); |
6f9d8c32 |
1697 | } |
9e353e3b |
1698 | return f; |
760ac839 |
1699 | } |
1700 | |
9e353e3b |
1701 | PerlIO * |
06da4f11 |
1702 | PerlIOBuf_open(PerlIO_funcs *self, const char *path, const char *mode) |
8c86a920 |
1703 | { |
9e353e3b |
1704 | PerlIO_funcs *tab = PerlIO_default_btm(); |
06da4f11 |
1705 | PerlIO *f = (*tab->Open)(tab,path,mode); |
9e353e3b |
1706 | if (f) |
1707 | { |
f5b9d040 |
1708 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,mode),PerlIOBuf); |
c3d7c7c9 |
1709 | b->posn = PerlIO_tell(PerlIONext(f)); |
9e353e3b |
1710 | } |
1711 | return f; |
1712 | } |
1713 | |
1714 | int |
c3d7c7c9 |
1715 | PerlIOBuf_reopen(const char *path, const char *mode, PerlIO *f) |
9e353e3b |
1716 | { |
c3d7c7c9 |
1717 | PerlIO *next = PerlIONext(f); |
1718 | int code = (*PerlIOBase(next)->tab->Reopen)(path,mode,next); |
1719 | if (code = 0) |
1720 | code = (*PerlIOBase(f)->tab->Pushed)(f,mode); |
1721 | if (code == 0) |
1722 | { |
1723 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1724 | b->posn = PerlIO_tell(PerlIONext(f)); |
1725 | } |
1726 | return code; |
9e353e3b |
1727 | } |
1728 | |
9e353e3b |
1729 | /* This "flush" is akin to sfio's sync in that it handles files in either |
1730 | read or write state |
1731 | */ |
1732 | IV |
1733 | PerlIOBuf_flush(PerlIO *f) |
6f9d8c32 |
1734 | { |
9e353e3b |
1735 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1736 | int code = 0; |
1737 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
1738 | { |
1739 | /* write() the buffer */ |
1740 | STDCHAR *p = b->buf; |
1741 | int count; |
3789aae2 |
1742 | PerlIO *n = PerlIONext(f); |
9e353e3b |
1743 | while (p < b->ptr) |
1744 | { |
3789aae2 |
1745 | count = PerlIO_write(n,p,b->ptr - p); |
9e353e3b |
1746 | if (count > 0) |
1747 | { |
1748 | p += count; |
1749 | } |
3789aae2 |
1750 | else if (count < 0 || PerlIO_error(n)) |
9e353e3b |
1751 | { |
1752 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
1753 | code = -1; |
1754 | break; |
1755 | } |
1756 | } |
1757 | b->posn += (p - b->buf); |
1758 | } |
1759 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
6f9d8c32 |
1760 | { |
9e353e3b |
1761 | /* Note position change */ |
1762 | b->posn += (b->ptr - b->buf); |
1763 | if (b->ptr < b->end) |
1764 | { |
1765 | /* We did not consume all of it */ |
1766 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) |
1767 | { |
1768 | b->posn = PerlIO_tell(PerlIONext(f)); |
1769 | } |
1770 | } |
6f9d8c32 |
1771 | } |
9e353e3b |
1772 | b->ptr = b->end = b->buf; |
1773 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); |
88b61e10 |
1774 | /* FIXME: Is this right for read case ? */ |
9e353e3b |
1775 | if (PerlIO_flush(PerlIONext(f)) != 0) |
1776 | code = -1; |
1777 | return code; |
6f9d8c32 |
1778 | } |
1779 | |
06da4f11 |
1780 | IV |
1781 | PerlIOBuf_fill(PerlIO *f) |
1782 | { |
1783 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
88b61e10 |
1784 | PerlIO *n = PerlIONext(f); |
06da4f11 |
1785 | SSize_t avail; |
88b61e10 |
1786 | /* FIXME: doing the down-stream flush is a bad idea if it causes |
1787 | pre-read data in stdio buffer to be discarded |
1788 | but this is too simplistic - as it skips _our_ hosekeeping |
1789 | and breaks tell tests. |
1790 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
1791 | { |
1792 | } |
1793 | */ |
06da4f11 |
1794 | if (PerlIO_flush(f) != 0) |
1795 | return -1; |
88b61e10 |
1796 | |
06da4f11 |
1797 | b->ptr = b->end = b->buf; |
88b61e10 |
1798 | if (PerlIO_fast_gets(n)) |
1799 | { |
1800 | /* Layer below is also buffered |
1801 | * We do _NOT_ want to call its ->Read() because that will loop |
1802 | * till it gets what we asked for which may hang on a pipe etc. |
1803 | * Instead take anything it has to hand, or ask it to fill _once_. |
1804 | */ |
1805 | avail = PerlIO_get_cnt(n); |
1806 | if (avail <= 0) |
1807 | { |
1808 | avail = PerlIO_fill(n); |
1809 | if (avail == 0) |
1810 | avail = PerlIO_get_cnt(n); |
1811 | else |
1812 | { |
1813 | if (!PerlIO_error(n) && PerlIO_eof(n)) |
1814 | avail = 0; |
1815 | } |
1816 | } |
1817 | if (avail > 0) |
1818 | { |
1819 | STDCHAR *ptr = PerlIO_get_ptr(n); |
1820 | SSize_t cnt = avail; |
1821 | if (avail > b->bufsiz) |
1822 | avail = b->bufsiz; |
1823 | Copy(ptr,b->buf,avail,STDCHAR); |
1824 | PerlIO_set_ptrcnt(n,ptr+avail,cnt-avail); |
1825 | } |
1826 | } |
1827 | else |
1828 | { |
1829 | avail = PerlIO_read(n,b->ptr,b->bufsiz); |
1830 | } |
06da4f11 |
1831 | if (avail <= 0) |
1832 | { |
1833 | if (avail == 0) |
1834 | PerlIOBase(f)->flags |= PERLIO_F_EOF; |
1835 | else |
1836 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; |
1837 | return -1; |
1838 | } |
1839 | b->end = b->buf+avail; |
1840 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
1841 | return 0; |
1842 | } |
1843 | |
6f9d8c32 |
1844 | SSize_t |
9e353e3b |
1845 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 |
1846 | { |
99efab12 |
1847 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1848 | STDCHAR *buf = (STDCHAR *) vbuf; |
6f9d8c32 |
1849 | if (f) |
1850 | { |
9e353e3b |
1851 | if (!b->ptr) |
06da4f11 |
1852 | PerlIO_get_base(f); |
9e353e3b |
1853 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
f89522bf |
1854 | return 0; |
6f9d8c32 |
1855 | while (count > 0) |
1856 | { |
99efab12 |
1857 | SSize_t avail = PerlIO_get_cnt(f); |
60382766 |
1858 | SSize_t take = (count < avail) ? count : avail; |
99efab12 |
1859 | if (take > 0) |
6f9d8c32 |
1860 | { |
99efab12 |
1861 | STDCHAR *ptr = PerlIO_get_ptr(f); |
1862 | Copy(ptr,buf,take,STDCHAR); |
1863 | PerlIO_set_ptrcnt(f,ptr+take,(avail -= take)); |
1864 | count -= take; |
1865 | buf += take; |
6f9d8c32 |
1866 | } |
99efab12 |
1867 | if (count > 0 && avail <= 0) |
6f9d8c32 |
1868 | { |
06da4f11 |
1869 | if (PerlIO_fill(f) != 0) |
1870 | break; |
6f9d8c32 |
1871 | } |
1872 | } |
99efab12 |
1873 | return (buf - (STDCHAR *) vbuf); |
6f9d8c32 |
1874 | } |
1875 | return 0; |
1876 | } |
1877 | |
9e353e3b |
1878 | SSize_t |
1879 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) |
760ac839 |
1880 | { |
9e353e3b |
1881 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
1882 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1883 | SSize_t unread = 0; |
1884 | SSize_t avail; |
9e353e3b |
1885 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
1886 | PerlIO_flush(f); |
06da4f11 |
1887 | if (!b->buf) |
1888 | PerlIO_get_base(f); |
9e353e3b |
1889 | if (b->buf) |
1890 | { |
1891 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
1892 | { |
1893 | avail = (b->ptr - b->buf); |
1894 | if (avail > (SSize_t) count) |
1895 | avail = count; |
1896 | b->ptr -= avail; |
1897 | } |
1898 | else |
1899 | { |
1900 | avail = b->bufsiz; |
1901 | if (avail > (SSize_t) count) |
1902 | avail = count; |
1903 | b->end = b->ptr + avail; |
1904 | } |
1905 | if (avail > 0) |
1906 | { |
1907 | buf -= avail; |
1908 | if (buf != b->ptr) |
1909 | { |
88b61e10 |
1910 | Copy(buf,b->ptr,avail,STDCHAR); |
9e353e3b |
1911 | } |
1912 | count -= avail; |
1913 | unread += avail; |
1914 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; |
1915 | } |
1916 | } |
1917 | return unread; |
760ac839 |
1918 | } |
1919 | |
9e353e3b |
1920 | SSize_t |
1921 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) |
760ac839 |
1922 | { |
9e353e3b |
1923 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1924 | const STDCHAR *buf = (const STDCHAR *) vbuf; |
1925 | Size_t written = 0; |
1926 | if (!b->buf) |
06da4f11 |
1927 | PerlIO_get_base(f); |
9e353e3b |
1928 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
1929 | return 0; |
1930 | while (count > 0) |
1931 | { |
1932 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); |
1933 | if ((SSize_t) count < avail) |
1934 | avail = count; |
1935 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; |
1936 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) |
1937 | { |
1938 | while (avail > 0) |
1939 | { |
1940 | int ch = *buf++; |
1941 | *(b->ptr)++ = ch; |
1942 | count--; |
1943 | avail--; |
1944 | written++; |
1945 | if (ch == '\n') |
1946 | { |
1947 | PerlIO_flush(f); |
1948 | break; |
1949 | } |
1950 | } |
1951 | } |
1952 | else |
1953 | { |
1954 | if (avail) |
1955 | { |
88b61e10 |
1956 | Copy(buf,b->ptr,avail,STDCHAR); |
9e353e3b |
1957 | count -= avail; |
1958 | buf += avail; |
1959 | written += avail; |
1960 | b->ptr += avail; |
1961 | } |
1962 | } |
1963 | if (b->ptr >= (b->buf + b->bufsiz)) |
1964 | PerlIO_flush(f); |
1965 | } |
f5b9d040 |
1966 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) |
1967 | PerlIO_flush(f); |
9e353e3b |
1968 | return written; |
1969 | } |
1970 | |
1971 | IV |
1972 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) |
1973 | { |
1974 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
06da4f11 |
1975 | int code = PerlIO_flush(f); |
9e353e3b |
1976 | if (code == 0) |
1977 | { |
1978 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
1979 | code = PerlIO_seek(PerlIONext(f),offset,whence); |
1980 | if (code == 0) |
1981 | { |
1982 | b->posn = PerlIO_tell(PerlIONext(f)); |
1983 | } |
1984 | } |
1985 | return code; |
1986 | } |
1987 | |
1988 | Off_t |
1989 | PerlIOBuf_tell(PerlIO *f) |
1990 | { |
1991 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1992 | Off_t posn = b->posn; |
1993 | if (b->buf) |
1994 | posn += (b->ptr - b->buf); |
1995 | return posn; |
1996 | } |
1997 | |
1998 | IV |
1999 | PerlIOBuf_close(PerlIO *f) |
2000 | { |
2001 | IV code = PerlIOBase_close(f); |
2002 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2003 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) |
6f9d8c32 |
2004 | { |
9e353e3b |
2005 | Safefree(b->buf); |
6f9d8c32 |
2006 | } |
9e353e3b |
2007 | b->buf = NULL; |
2008 | b->ptr = b->end = b->buf; |
2009 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); |
2010 | return code; |
760ac839 |
2011 | } |
2012 | |
760ac839 |
2013 | void |
9e353e3b |
2014 | PerlIOBuf_setlinebuf(PerlIO *f) |
760ac839 |
2015 | { |
6f9d8c32 |
2016 | if (f) |
2017 | { |
9e353e3b |
2018 | PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF; |
6f9d8c32 |
2019 | } |
760ac839 |
2020 | } |
2021 | |
9e353e3b |
2022 | STDCHAR * |
2023 | PerlIOBuf_get_ptr(PerlIO *f) |
2024 | { |
2025 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2026 | if (!b->buf) |
06da4f11 |
2027 | PerlIO_get_base(f); |
9e353e3b |
2028 | return b->ptr; |
2029 | } |
2030 | |
05d1247b |
2031 | SSize_t |
9e353e3b |
2032 | PerlIOBuf_get_cnt(PerlIO *f) |
2033 | { |
2034 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2035 | if (!b->buf) |
06da4f11 |
2036 | PerlIO_get_base(f); |
9e353e3b |
2037 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
2038 | return (b->end - b->ptr); |
2039 | return 0; |
2040 | } |
2041 | |
2042 | STDCHAR * |
2043 | PerlIOBuf_get_base(PerlIO *f) |
2044 | { |
2045 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2046 | if (!b->buf) |
06da4f11 |
2047 | { |
2048 | if (!b->bufsiz) |
2049 | b->bufsiz = 4096; |
2050 | New('B',b->buf,b->bufsiz,STDCHAR); |
2051 | if (!b->buf) |
2052 | { |
2053 | b->buf = (STDCHAR *)&b->oneword; |
2054 | b->bufsiz = sizeof(b->oneword); |
2055 | } |
2056 | b->ptr = b->buf; |
2057 | b->end = b->ptr; |
2058 | } |
9e353e3b |
2059 | return b->buf; |
2060 | } |
2061 | |
2062 | Size_t |
2063 | PerlIOBuf_bufsiz(PerlIO *f) |
2064 | { |
2065 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2066 | if (!b->buf) |
06da4f11 |
2067 | PerlIO_get_base(f); |
9e353e3b |
2068 | return (b->end - b->buf); |
2069 | } |
2070 | |
2071 | void |
05d1247b |
2072 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
9e353e3b |
2073 | { |
2074 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2075 | if (!b->buf) |
06da4f11 |
2076 | PerlIO_get_base(f); |
9e353e3b |
2077 | b->ptr = ptr; |
2078 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) |
6f9d8c32 |
2079 | { |
9e353e3b |
2080 | dTHX; |
2081 | assert(PerlIO_get_cnt(f) == cnt); |
2082 | assert(b->ptr >= b->buf); |
6f9d8c32 |
2083 | } |
9e353e3b |
2084 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 |
2085 | } |
2086 | |
9e353e3b |
2087 | PerlIO_funcs PerlIO_perlio = { |
2088 | "perlio", |
2089 | sizeof(PerlIOBuf), |
f5b9d040 |
2090 | PERLIO_K_BUFFERED, |
9e353e3b |
2091 | PerlIOBase_fileno, |
2092 | PerlIOBuf_fdopen, |
2093 | PerlIOBuf_open, |
c3d7c7c9 |
2094 | PerlIOBuf_reopen, |
06da4f11 |
2095 | PerlIOBase_pushed, |
2096 | PerlIOBase_noop_ok, |
9e353e3b |
2097 | PerlIOBuf_read, |
2098 | PerlIOBuf_unread, |
2099 | PerlIOBuf_write, |
2100 | PerlIOBuf_seek, |
2101 | PerlIOBuf_tell, |
2102 | PerlIOBuf_close, |
2103 | PerlIOBuf_flush, |
06da4f11 |
2104 | PerlIOBuf_fill, |
9e353e3b |
2105 | PerlIOBase_eof, |
2106 | PerlIOBase_error, |
2107 | PerlIOBase_clearerr, |
2108 | PerlIOBuf_setlinebuf, |
2109 | PerlIOBuf_get_base, |
2110 | PerlIOBuf_bufsiz, |
2111 | PerlIOBuf_get_ptr, |
2112 | PerlIOBuf_get_cnt, |
2113 | PerlIOBuf_set_ptrcnt, |
2114 | }; |
2115 | |
66ecd56b |
2116 | /*--------------------------------------------------------------------------------------*/ |
99efab12 |
2117 | /* crlf - translation |
2118 | On read translate CR,LF to "\n" we do this by overriding ptr/cnt entries |
60382766 |
2119 | to hand back a line at a time and keeping a record of which nl we "lied" about. |
99efab12 |
2120 | On write translate "\n" to CR,LF |
66ecd56b |
2121 | */ |
2122 | |
99efab12 |
2123 | typedef struct |
2124 | { |
2125 | PerlIOBuf base; /* PerlIOBuf stuff */ |
60382766 |
2126 | STDCHAR *nl; /* Position of crlf we "lied" about in the buffer */ |
99efab12 |
2127 | } PerlIOCrlf; |
2128 | |
f5b9d040 |
2129 | IV |
2130 | PerlIOCrlf_pushed(PerlIO *f, const char *mode) |
2131 | { |
2132 | IV code; |
2133 | PerlIOBase(f)->flags |= PERLIO_F_CRLF; |
2134 | code = PerlIOBase_pushed(f,mode); |
86295796 |
2135 | PerlIO_debug("PerlIOCrlf_pushed f=%p %s %s fl=%08x\n", |
f5b9d040 |
2136 | f,PerlIOBase(f)->tab->name,(mode) ? mode : "(Null)", |
2137 | PerlIOBase(f)->flags); |
2138 | return code; |
2139 | } |
2140 | |
2141 | |
99efab12 |
2142 | SSize_t |
2143 | PerlIOCrlf_unread(PerlIO *f, const void *vbuf, Size_t count) |
2144 | { |
60382766 |
2145 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); |
60382766 |
2146 | if (c->nl) |
2147 | { |
2148 | *(c->nl) = 0xd; |
2149 | c->nl = NULL; |
2150 | } |
f5b9d040 |
2151 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
2152 | return PerlIOBuf_unread(f,vbuf,count); |
2153 | else |
99efab12 |
2154 | { |
f5b9d040 |
2155 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
2156 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2157 | SSize_t unread = 0; |
2158 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
2159 | PerlIO_flush(f); |
2160 | if (!b->buf) |
2161 | PerlIO_get_base(f); |
2162 | if (b->buf) |
99efab12 |
2163 | { |
f5b9d040 |
2164 | if (!(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
99efab12 |
2165 | { |
f5b9d040 |
2166 | b->end = b->ptr = b->buf + b->bufsiz; |
2167 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
2168 | } |
2169 | while (count > 0 && b->ptr > b->buf) |
2170 | { |
2171 | int ch = *--buf; |
2172 | if (ch == '\n') |
99efab12 |
2173 | { |
f5b9d040 |
2174 | if (b->ptr - 2 >= b->buf) |
2175 | { |
2176 | *--(b->ptr) = 0xa; |
2177 | *--(b->ptr) = 0xd; |
2178 | unread++; |
2179 | count--; |
2180 | } |
2181 | else |
2182 | { |
2183 | buf++; |
2184 | break; |
2185 | } |
99efab12 |
2186 | } |
2187 | else |
2188 | { |
f5b9d040 |
2189 | *--(b->ptr) = ch; |
2190 | unread++; |
2191 | count--; |
99efab12 |
2192 | } |
2193 | } |
99efab12 |
2194 | } |
f5b9d040 |
2195 | return unread; |
99efab12 |
2196 | } |
99efab12 |
2197 | } |
2198 | |
2199 | SSize_t |
2200 | PerlIOCrlf_get_cnt(PerlIO *f) |
2201 | { |
2202 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2203 | if (!b->buf) |
2204 | PerlIO_get_base(f); |
2205 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
2206 | { |
2207 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); |
f5b9d040 |
2208 | if ((PerlIOBase(f)->flags & PERLIO_F_CRLF) && !c->nl) |
99efab12 |
2209 | { |
2210 | STDCHAR *nl = b->ptr; |
60382766 |
2211 | scan: |
99efab12 |
2212 | while (nl < b->end && *nl != 0xd) |
2213 | nl++; |
2214 | if (nl < b->end && *nl == 0xd) |
2215 | { |
60382766 |
2216 | test: |
99efab12 |
2217 | if (nl+1 < b->end) |
2218 | { |
2219 | if (nl[1] == 0xa) |
2220 | { |
2221 | *nl = '\n'; |
60382766 |
2222 | c->nl = nl; |
99efab12 |
2223 | } |
60382766 |
2224 | else |
99efab12 |
2225 | { |
2226 | /* Not CR,LF but just CR */ |
2227 | nl++; |
60382766 |
2228 | goto scan; |
99efab12 |
2229 | } |
2230 | } |
2231 | else |
2232 | { |
60382766 |
2233 | /* Blast - found CR as last char in buffer */ |
99efab12 |
2234 | if (b->ptr < nl) |
2235 | { |
2236 | /* They may not care, defer work as long as possible */ |
60382766 |
2237 | return (nl - b->ptr); |
99efab12 |
2238 | } |
2239 | else |
2240 | { |
2241 | int code; |
2242 | dTHX; |
99efab12 |
2243 | b->ptr++; /* say we have read it as far as flush() is concerned */ |
2244 | b->buf++; /* Leave space an front of buffer */ |
2245 | b->bufsiz--; /* Buffer is thus smaller */ |
2246 | code = PerlIO_fill(f); /* Fetch some more */ |
2247 | b->bufsiz++; /* Restore size for next time */ |
2248 | b->buf--; /* Point at space */ |
2249 | b->ptr = nl = b->buf; /* Which is what we hand off */ |
2250 | b->posn--; /* Buffer starts here */ |
2251 | *nl = 0xd; /* Fill in the CR */ |
60382766 |
2252 | if (code == 0) |
99efab12 |
2253 | goto test; /* fill() call worked */ |
2254 | /* CR at EOF - just fall through */ |
2255 | } |
2256 | } |
60382766 |
2257 | } |
2258 | } |
99efab12 |
2259 | return (((c->nl) ? (c->nl+1) : b->end) - b->ptr); |
2260 | } |
2261 | return 0; |
2262 | } |
2263 | |
2264 | void |
2265 | PerlIOCrlf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
2266 | { |
2267 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2268 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); |
f5b9d040 |
2269 | IV flags = PerlIOBase(f)->flags; |
99efab12 |
2270 | if (!b->buf) |
2271 | PerlIO_get_base(f); |
2272 | if (!ptr) |
60382766 |
2273 | { |
63dbdb06 |
2274 | if (c->nl) |
2275 | ptr = c->nl+1; |
2276 | else |
2277 | { |
2278 | ptr = b->end; |
f5b9d040 |
2279 | if ((flags & PERLIO_F_CRLF) && ptr > b->buf && ptr[-1] == 0xd) |
63dbdb06 |
2280 | ptr--; |
2281 | } |
2282 | ptr -= cnt; |
60382766 |
2283 | } |
2284 | else |
2285 | { |
63dbdb06 |
2286 | /* Test code - delete when it works ... */ |
2287 | STDCHAR *chk; |
2288 | if (c->nl) |
2289 | chk = c->nl+1; |
2290 | else |
2291 | { |
2292 | chk = b->end; |
f5b9d040 |
2293 | if ((flags & PERLIO_F_CRLF) && chk > b->buf && chk[-1] == 0xd) |
63dbdb06 |
2294 | chk--; |
2295 | } |
2296 | chk -= cnt; |
2297 | |
2298 | if (ptr != chk) |
2299 | { |
2300 | dTHX; |
f5b9d040 |
2301 | Perl_croak(aTHX_ "ptr wrong %p != %p fl=%08x nl=%p e=%p for %d", |
2302 | ptr, chk, flags, c->nl, b->end, cnt); |
63dbdb06 |
2303 | } |
60382766 |
2304 | } |
99efab12 |
2305 | if (c->nl) |
2306 | { |
2307 | if (ptr > c->nl) |
2308 | { |
2309 | /* They have taken what we lied about */ |
2310 | *(c->nl) = 0xd; |
2311 | c->nl = NULL; |
2312 | ptr++; |
60382766 |
2313 | } |
99efab12 |
2314 | } |
2315 | b->ptr = ptr; |
2316 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
2317 | } |
2318 | |
2319 | SSize_t |
2320 | PerlIOCrlf_write(PerlIO *f, const void *vbuf, Size_t count) |
2321 | { |
f5b9d040 |
2322 | if (!(PerlIOBase(f)->flags & PERLIO_F_CRLF)) |
2323 | return PerlIOBuf_write(f,vbuf,count); |
2324 | else |
99efab12 |
2325 | { |
f5b9d040 |
2326 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2327 | const STDCHAR *buf = (const STDCHAR *) vbuf; |
2328 | const STDCHAR *ebuf = buf+count; |
2329 | if (!b->buf) |
2330 | PerlIO_get_base(f); |
2331 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
2332 | return 0; |
2333 | while (buf < ebuf) |
99efab12 |
2334 | { |
f5b9d040 |
2335 | STDCHAR *eptr = b->buf+b->bufsiz; |
2336 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; |
2337 | while (buf < ebuf && b->ptr < eptr) |
99efab12 |
2338 | { |
f5b9d040 |
2339 | if (*buf == '\n') |
60382766 |
2340 | { |
f5b9d040 |
2341 | if ((b->ptr + 2) > eptr) |
60382766 |
2342 | { |
f5b9d040 |
2343 | /* Not room for both */ |
60382766 |
2344 | PerlIO_flush(f); |
2345 | break; |
2346 | } |
f5b9d040 |
2347 | else |
2348 | { |
2349 | *(b->ptr)++ = 0xd; /* CR */ |
2350 | *(b->ptr)++ = 0xa; /* LF */ |
2351 | buf++; |
2352 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) |
2353 | { |
2354 | PerlIO_flush(f); |
2355 | break; |
2356 | } |
2357 | } |
2358 | } |
2359 | else |
2360 | { |
2361 | int ch = *buf++; |
2362 | *(b->ptr)++ = ch; |
2363 | } |
2364 | if (b->ptr >= eptr) |
2365 | { |
2366 | PerlIO_flush(f); |
2367 | break; |
99efab12 |
2368 | } |
99efab12 |
2369 | } |
2370 | } |
f5b9d040 |
2371 | if (PerlIOBase(f)->flags & PERLIO_F_UNBUF) |
2372 | PerlIO_flush(f); |
2373 | return (buf - (STDCHAR *) vbuf); |
99efab12 |
2374 | } |
99efab12 |
2375 | } |
2376 | |
2377 | IV |
2378 | PerlIOCrlf_flush(PerlIO *f) |
2379 | { |
2380 | PerlIOCrlf *c = PerlIOSelf(f,PerlIOCrlf); |
2381 | if (c->nl) |
2382 | { |
99efab12 |
2383 | *(c->nl) = 0xd; |
60382766 |
2384 | c->nl = NULL; |
99efab12 |
2385 | } |
2386 | return PerlIOBuf_flush(f); |
2387 | } |
2388 | |
66ecd56b |
2389 | PerlIO_funcs PerlIO_crlf = { |
2390 | "crlf", |
99efab12 |
2391 | sizeof(PerlIOCrlf), |
f5b9d040 |
2392 | PERLIO_K_BUFFERED|PERLIO_K_CANCRLF, |
66ecd56b |
2393 | PerlIOBase_fileno, |
2394 | PerlIOBuf_fdopen, |
2395 | PerlIOBuf_open, |
2396 | PerlIOBuf_reopen, |
f5b9d040 |
2397 | PerlIOCrlf_pushed, |
99efab12 |
2398 | PerlIOBase_noop_ok, /* popped */ |
2399 | PerlIOBuf_read, /* generic read works with ptr/cnt lies ... */ |
2400 | PerlIOCrlf_unread, /* Put CR,LF in buffer for each '\n' */ |
2401 | PerlIOCrlf_write, /* Put CR,LF in buffer for each '\n' */ |
66ecd56b |
2402 | PerlIOBuf_seek, |
2403 | PerlIOBuf_tell, |
2404 | PerlIOBuf_close, |
99efab12 |
2405 | PerlIOCrlf_flush, |
66ecd56b |
2406 | PerlIOBuf_fill, |
2407 | PerlIOBase_eof, |
2408 | PerlIOBase_error, |
2409 | PerlIOBase_clearerr, |
2410 | PerlIOBuf_setlinebuf, |
2411 | PerlIOBuf_get_base, |
2412 | PerlIOBuf_bufsiz, |
2413 | PerlIOBuf_get_ptr, |
99efab12 |
2414 | PerlIOCrlf_get_cnt, |
2415 | PerlIOCrlf_set_ptrcnt, |
66ecd56b |
2416 | }; |
2417 | |
06da4f11 |
2418 | #ifdef HAS_MMAP |
2419 | /*--------------------------------------------------------------------------------------*/ |
2420 | /* mmap as "buffer" layer */ |
2421 | |
2422 | typedef struct |
2423 | { |
2424 | PerlIOBuf base; /* PerlIOBuf stuff */ |
c3d7c7c9 |
2425 | Mmap_t mptr; /* Mapped address */ |
06da4f11 |
2426 | Size_t len; /* mapped length */ |
2427 | STDCHAR *bbuf; /* malloced buffer if map fails */ |
2428 | } PerlIOMmap; |
2429 | |
c3d7c7c9 |
2430 | static size_t page_size = 0; |
2431 | |
06da4f11 |
2432 | IV |
2433 | PerlIOMmap_map(PerlIO *f) |
2434 | { |
68d873c6 |
2435 | dTHX; |
06da4f11 |
2436 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2437 | PerlIOBuf *b = &m->base; |
2438 | IV flags = PerlIOBase(f)->flags; |
2439 | IV code = 0; |
2440 | if (m->len) |
2441 | abort(); |
2442 | if (flags & PERLIO_F_CANREAD) |
2443 | { |
2444 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2445 | int fd = PerlIO_fileno(f); |
2446 | struct stat st; |
2447 | code = fstat(fd,&st); |
2448 | if (code == 0 && S_ISREG(st.st_mode)) |
2449 | { |
2450 | SSize_t len = st.st_size - b->posn; |
2451 | if (len > 0) |
2452 | { |
c3d7c7c9 |
2453 | Off_t posn; |
68d873c6 |
2454 | if (!page_size) { |
2455 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_PAGE_SIZE)) |
2456 | { |
2457 | SETERRNO(0,SS$_NORMAL); |
2458 | # ifdef _SC_PAGESIZE |
2459 | page_size = sysconf(_SC_PAGESIZE); |
2460 | # else |
2461 | page_size = sysconf(_SC_PAGE_SIZE); |
14aaf8e8 |
2462 | # endif |
68d873c6 |
2463 | if ((long)page_size < 0) { |
2464 | if (errno) { |
2465 | SV *error = ERRSV; |
2466 | char *msg; |
2467 | STRLEN n_a; |
2468 | (void)SvUPGRADE(error, SVt_PV); |
2469 | msg = SvPVx(error, n_a); |
14aaf8e8 |
2470 | Perl_croak(aTHX_ "panic: sysconf: %s", msg); |
68d873c6 |
2471 | } |
2472 | else |
14aaf8e8 |
2473 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); |
68d873c6 |
2474 | } |
2475 | } |
2476 | #else |
2477 | # ifdef HAS_GETPAGESIZE |
c3d7c7c9 |
2478 | page_size = getpagesize(); |
68d873c6 |
2479 | # else |
2480 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) |
2481 | page_size = PAGESIZE; /* compiletime, bad */ |
2482 | # endif |
2483 | # endif |
2484 | #endif |
2485 | if ((IV)page_size <= 0) |
14aaf8e8 |
2486 | Perl_croak(aTHX_ "panic: bad pagesize %"IVdf, (IV)page_size); |
68d873c6 |
2487 | } |
c3d7c7c9 |
2488 | if (b->posn < 0) |
2489 | { |
2490 | /* This is a hack - should never happen - open should have set it ! */ |
2491 | b->posn = PerlIO_tell(PerlIONext(f)); |
2492 | } |
2493 | posn = (b->posn / page_size) * page_size; |
2494 | len = st.st_size - posn; |
2495 | m->mptr = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, posn); |
2496 | if (m->mptr && m->mptr != (Mmap_t) -1) |
06da4f11 |
2497 | { |
2498 | #if defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL) |
c3d7c7c9 |
2499 | madvise(m->mptr, len, MADV_SEQUENTIAL); |
06da4f11 |
2500 | #endif |
c3d7c7c9 |
2501 | PerlIOBase(f)->flags = (flags & ~PERLIO_F_EOF) | PERLIO_F_RDBUF; |
2502 | b->end = ((STDCHAR *)m->mptr) + len; |
2503 | b->buf = ((STDCHAR *)m->mptr) + (b->posn - posn); |
2504 | b->ptr = b->buf; |
2505 | m->len = len; |
06da4f11 |
2506 | } |
2507 | else |
2508 | { |
2509 | b->buf = NULL; |
2510 | } |
2511 | } |
2512 | else |
2513 | { |
2514 | PerlIOBase(f)->flags = flags | PERLIO_F_EOF | PERLIO_F_RDBUF; |
2515 | b->buf = NULL; |
2516 | b->ptr = b->end = b->ptr; |
2517 | code = -1; |
2518 | } |
2519 | } |
2520 | } |
2521 | return code; |
2522 | } |
2523 | |
2524 | IV |
2525 | PerlIOMmap_unmap(PerlIO *f) |
2526 | { |
2527 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2528 | PerlIOBuf *b = &m->base; |
2529 | IV code = 0; |
2530 | if (m->len) |
2531 | { |
2532 | if (b->buf) |
2533 | { |
c3d7c7c9 |
2534 | code = munmap(m->mptr, m->len); |
2535 | b->buf = NULL; |
2536 | m->len = 0; |
2537 | m->mptr = NULL; |
06da4f11 |
2538 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) != 0) |
2539 | code = -1; |
06da4f11 |
2540 | } |
2541 | b->ptr = b->end = b->buf; |
2542 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); |
2543 | } |
2544 | return code; |
2545 | } |
2546 | |
2547 | STDCHAR * |
2548 | PerlIOMmap_get_base(PerlIO *f) |
2549 | { |
2550 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2551 | PerlIOBuf *b = &m->base; |
2552 | if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
2553 | { |
2554 | /* Already have a readbuffer in progress */ |
2555 | return b->buf; |
2556 | } |
2557 | if (b->buf) |
2558 | { |
2559 | /* We have a write buffer or flushed PerlIOBuf read buffer */ |
2560 | m->bbuf = b->buf; /* save it in case we need it again */ |
2561 | b->buf = NULL; /* Clear to trigger below */ |
2562 | } |
2563 | if (!b->buf) |
2564 | { |
2565 | PerlIOMmap_map(f); /* Try and map it */ |
2566 | if (!b->buf) |
2567 | { |
2568 | /* Map did not work - recover PerlIOBuf buffer if we have one */ |
2569 | b->buf = m->bbuf; |
2570 | } |
2571 | } |
2572 | b->ptr = b->end = b->buf; |
2573 | if (b->buf) |
2574 | return b->buf; |
2575 | return PerlIOBuf_get_base(f); |
2576 | } |
2577 | |
2578 | SSize_t |
2579 | PerlIOMmap_unread(PerlIO *f, const void *vbuf, Size_t count) |
2580 | { |
2581 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2582 | PerlIOBuf *b = &m->base; |
2583 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
2584 | PerlIO_flush(f); |
2585 | if (b->ptr && (b->ptr - count) >= b->buf && memEQ(b->ptr - count,vbuf,count)) |
2586 | { |
2587 | b->ptr -= count; |
2588 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; |
2589 | return count; |
2590 | } |
2591 | if (m->len) |
2592 | { |
4a4a6116 |
2593 | /* Loose the unwritable mapped buffer */ |
06da4f11 |
2594 | PerlIO_flush(f); |
c3d7c7c9 |
2595 | /* If flush took the "buffer" see if we have one from before */ |
2596 | if (!b->buf && m->bbuf) |
2597 | b->buf = m->bbuf; |
2598 | if (!b->buf) |
2599 | { |
2600 | PerlIOBuf_get_base(f); |
2601 | m->bbuf = b->buf; |
2602 | } |
06da4f11 |
2603 | } |
2604 | return PerlIOBuf_unread(f,vbuf,count); |
2605 | } |
2606 | |
2607 | SSize_t |
2608 | PerlIOMmap_write(PerlIO *f, const void *vbuf, Size_t count) |
2609 | { |
2610 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2611 | PerlIOBuf *b = &m->base; |
2612 | if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF)) |
2613 | { |
2614 | /* No, or wrong sort of, buffer */ |
2615 | if (m->len) |
2616 | { |
2617 | if (PerlIOMmap_unmap(f) != 0) |
2618 | return 0; |
2619 | } |
2620 | /* If unmap took the "buffer" see if we have one from before */ |
2621 | if (!b->buf && m->bbuf) |
2622 | b->buf = m->bbuf; |
2623 | if (!b->buf) |
2624 | { |
2625 | PerlIOBuf_get_base(f); |
2626 | m->bbuf = b->buf; |
2627 | } |
2628 | } |
2629 | return PerlIOBuf_write(f,vbuf,count); |
2630 | } |
2631 | |
2632 | IV |
2633 | PerlIOMmap_flush(PerlIO *f) |
2634 | { |
2635 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2636 | PerlIOBuf *b = &m->base; |
2637 | IV code = PerlIOBuf_flush(f); |
2638 | /* Now we are "synced" at PerlIOBuf level */ |
2639 | if (b->buf) |
2640 | { |
2641 | if (m->len) |
2642 | { |
2643 | /* Unmap the buffer */ |
2644 | if (PerlIOMmap_unmap(f) != 0) |
2645 | code = -1; |
2646 | } |
2647 | else |
2648 | { |
2649 | /* We seem to have a PerlIOBuf buffer which was not mapped |
2650 | * remember it in case we need one later |
2651 | */ |
2652 | m->bbuf = b->buf; |
2653 | } |
2654 | } |
06da4f11 |
2655 | return code; |
2656 | } |
2657 | |
2658 | IV |
2659 | PerlIOMmap_fill(PerlIO *f) |
2660 | { |
2661 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
2662 | IV code = PerlIO_flush(f); |
06da4f11 |
2663 | if (code == 0 && !b->buf) |
2664 | { |
2665 | code = PerlIOMmap_map(f); |
06da4f11 |
2666 | } |
2667 | if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) |
2668 | { |
2669 | code = PerlIOBuf_fill(f); |
06da4f11 |
2670 | } |
2671 | return code; |
2672 | } |
2673 | |
2674 | IV |
2675 | PerlIOMmap_close(PerlIO *f) |
2676 | { |
2677 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
2678 | PerlIOBuf *b = &m->base; |
2679 | IV code = PerlIO_flush(f); |
2680 | if (m->bbuf) |
2681 | { |
2682 | b->buf = m->bbuf; |
2683 | m->bbuf = NULL; |
2684 | b->ptr = b->end = b->buf; |
2685 | } |
2686 | if (PerlIOBuf_close(f) != 0) |
2687 | code = -1; |
06da4f11 |
2688 | return code; |
2689 | } |
2690 | |
2691 | |
2692 | PerlIO_funcs PerlIO_mmap = { |
2693 | "mmap", |
2694 | sizeof(PerlIOMmap), |
f5b9d040 |
2695 | PERLIO_K_BUFFERED, |
06da4f11 |
2696 | PerlIOBase_fileno, |
2697 | PerlIOBuf_fdopen, |
2698 | PerlIOBuf_open, |
c3d7c7c9 |
2699 | PerlIOBuf_reopen, |
06da4f11 |
2700 | PerlIOBase_pushed, |
2701 | PerlIOBase_noop_ok, |
2702 | PerlIOBuf_read, |
2703 | PerlIOMmap_unread, |
2704 | PerlIOMmap_write, |
2705 | PerlIOBuf_seek, |
2706 | PerlIOBuf_tell, |
2707 | PerlIOBuf_close, |
2708 | PerlIOMmap_flush, |
2709 | PerlIOMmap_fill, |
2710 | PerlIOBase_eof, |
2711 | PerlIOBase_error, |
2712 | PerlIOBase_clearerr, |
2713 | PerlIOBuf_setlinebuf, |
2714 | PerlIOMmap_get_base, |
2715 | PerlIOBuf_bufsiz, |
2716 | PerlIOBuf_get_ptr, |
2717 | PerlIOBuf_get_cnt, |
2718 | PerlIOBuf_set_ptrcnt, |
2719 | }; |
2720 | |
2721 | #endif /* HAS_MMAP */ |
2722 | |
9e353e3b |
2723 | void |
2724 | PerlIO_init(void) |
760ac839 |
2725 | { |
9e353e3b |
2726 | if (!_perlio) |
6f9d8c32 |
2727 | { |
9e353e3b |
2728 | atexit(&PerlIO_cleanup); |
6f9d8c32 |
2729 | } |
760ac839 |
2730 | } |
2731 | |
9e353e3b |
2732 | #undef PerlIO_stdin |
2733 | PerlIO * |
2734 | PerlIO_stdin(void) |
2735 | { |
2736 | if (!_perlio) |
f3862f8b |
2737 | PerlIO_stdstreams(); |
05d1247b |
2738 | return &_perlio[1]; |
9e353e3b |
2739 | } |
2740 | |
2741 | #undef PerlIO_stdout |
2742 | PerlIO * |
2743 | PerlIO_stdout(void) |
2744 | { |
2745 | if (!_perlio) |
f3862f8b |
2746 | PerlIO_stdstreams(); |
05d1247b |
2747 | return &_perlio[2]; |
9e353e3b |
2748 | } |
2749 | |
2750 | #undef PerlIO_stderr |
2751 | PerlIO * |
2752 | PerlIO_stderr(void) |
2753 | { |
2754 | if (!_perlio) |
f3862f8b |
2755 | PerlIO_stdstreams(); |
05d1247b |
2756 | return &_perlio[3]; |
9e353e3b |
2757 | } |
2758 | |
2759 | /*--------------------------------------------------------------------------------------*/ |
2760 | |
2761 | #undef PerlIO_getname |
2762 | char * |
2763 | PerlIO_getname(PerlIO *f, char *buf) |
2764 | { |
2765 | dTHX; |
2766 | Perl_croak(aTHX_ "Don't know how to get file name"); |
2767 | return NULL; |
2768 | } |
2769 | |
2770 | |
2771 | /*--------------------------------------------------------------------------------------*/ |
2772 | /* Functions which can be called on any kind of PerlIO implemented |
2773 | in terms of above |
2774 | */ |
2775 | |
2776 | #undef PerlIO_getc |
6f9d8c32 |
2777 | int |
9e353e3b |
2778 | PerlIO_getc(PerlIO *f) |
760ac839 |
2779 | { |
313ca112 |
2780 | STDCHAR buf[1]; |
2781 | SSize_t count = PerlIO_read(f,buf,1); |
9e353e3b |
2782 | if (count == 1) |
313ca112 |
2783 | { |
2784 | return (unsigned char) buf[0]; |
2785 | } |
2786 | return EOF; |
2787 | } |
2788 | |
2789 | #undef PerlIO_ungetc |
2790 | int |
2791 | PerlIO_ungetc(PerlIO *f, int ch) |
2792 | { |
2793 | if (ch != EOF) |
2794 | { |
2795 | STDCHAR buf = ch; |
2796 | if (PerlIO_unread(f,&buf,1) == 1) |
2797 | return ch; |
2798 | } |
2799 | return EOF; |
760ac839 |
2800 | } |
2801 | |
9e353e3b |
2802 | #undef PerlIO_putc |
2803 | int |
2804 | PerlIO_putc(PerlIO *f, int ch) |
760ac839 |
2805 | { |
9e353e3b |
2806 | STDCHAR buf = ch; |
2807 | return PerlIO_write(f,&buf,1); |
760ac839 |
2808 | } |
2809 | |
9e353e3b |
2810 | #undef PerlIO_puts |
760ac839 |
2811 | int |
9e353e3b |
2812 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 |
2813 | { |
9e353e3b |
2814 | STRLEN len = strlen(s); |
2815 | return PerlIO_write(f,s,len); |
760ac839 |
2816 | } |
2817 | |
2818 | #undef PerlIO_rewind |
2819 | void |
c78749f2 |
2820 | PerlIO_rewind(PerlIO *f) |
760ac839 |
2821 | { |
6f9d8c32 |
2822 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b |
2823 | PerlIO_clearerr(f); |
6f9d8c32 |
2824 | } |
2825 | |
2826 | #undef PerlIO_vprintf |
2827 | int |
2828 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) |
2829 | { |
2830 | dTHX; |
bb9950b7 |
2831 | SV *sv = newSVpvn("",0); |
6f9d8c32 |
2832 | char *s; |
2833 | STRLEN len; |
2cc61e15 |
2834 | #ifdef NEED_VA_COPY |
2835 | va_list apc; |
2836 | Perl_va_copy(ap, apc); |
2837 | sv_vcatpvf(sv, fmt, &apc); |
2838 | #else |
6f9d8c32 |
2839 | sv_vcatpvf(sv, fmt, &ap); |
2cc61e15 |
2840 | #endif |
6f9d8c32 |
2841 | s = SvPV(sv,len); |
bb9950b7 |
2842 | return PerlIO_write(f,s,len); |
760ac839 |
2843 | } |
2844 | |
2845 | #undef PerlIO_printf |
6f9d8c32 |
2846 | int |
760ac839 |
2847 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 |
2848 | { |
2849 | va_list ap; |
2850 | int result; |
760ac839 |
2851 | va_start(ap,fmt); |
6f9d8c32 |
2852 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 |
2853 | va_end(ap); |
2854 | return result; |
2855 | } |
2856 | |
2857 | #undef PerlIO_stdoutf |
6f9d8c32 |
2858 | int |
760ac839 |
2859 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 |
2860 | { |
2861 | va_list ap; |
2862 | int result; |
760ac839 |
2863 | va_start(ap,fmt); |
760ac839 |
2864 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
2865 | va_end(ap); |
2866 | return result; |
2867 | } |
2868 | |
2869 | #undef PerlIO_tmpfile |
2870 | PerlIO * |
c78749f2 |
2871 | PerlIO_tmpfile(void) |
760ac839 |
2872 | { |
b1ef6e3b |
2873 | /* I have no idea how portable mkstemp() is ... */ |
83b075c3 |
2874 | #if defined(WIN32) || !defined(HAVE_MKSTEMP) |
2875 | PerlIO *f = NULL; |
2876 | FILE *stdio = tmpfile(); |
2877 | if (stdio) |
2878 | { |
2879 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,"w+"),PerlIOStdio); |
2880 | s->stdio = stdio; |
2881 | } |
2882 | return f; |
2883 | #else |
2884 | dTHX; |
6f9d8c32 |
2885 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
2886 | int fd = mkstemp(SvPVX(sv)); |
2887 | PerlIO *f = NULL; |
2888 | if (fd >= 0) |
2889 | { |
b1ef6e3b |
2890 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 |
2891 | if (f) |
2892 | { |
9e353e3b |
2893 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 |
2894 | } |
00b02797 |
2895 | PerlLIO_unlink(SvPVX(sv)); |
6f9d8c32 |
2896 | SvREFCNT_dec(sv); |
2897 | } |
2898 | return f; |
83b075c3 |
2899 | #endif |
760ac839 |
2900 | } |
2901 | |
6f9d8c32 |
2902 | #undef HAS_FSETPOS |
2903 | #undef HAS_FGETPOS |
2904 | |
760ac839 |
2905 | #endif /* USE_SFIO */ |
2906 | #endif /* PERLIO_IS_STDIO */ |
2907 | |
9e353e3b |
2908 | /*======================================================================================*/ |
2909 | /* Now some functions in terms of above which may be needed even if |
2910 | we are not in true PerlIO mode |
2911 | */ |
2912 | |
760ac839 |
2913 | #ifndef HAS_FSETPOS |
2914 | #undef PerlIO_setpos |
2915 | int |
c78749f2 |
2916 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
760ac839 |
2917 | { |
6f9d8c32 |
2918 | return PerlIO_seek(f,*pos,0); |
760ac839 |
2919 | } |
c411622e |
2920 | #else |
2921 | #ifndef PERLIO_IS_STDIO |
2922 | #undef PerlIO_setpos |
2923 | int |
c78749f2 |
2924 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
c411622e |
2925 | { |
2d4389e4 |
2926 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d |
2927 | return fsetpos64(f, pos); |
2928 | #else |
c411622e |
2929 | return fsetpos(f, pos); |
d9b3e12d |
2930 | #endif |
c411622e |
2931 | } |
2932 | #endif |
760ac839 |
2933 | #endif |
2934 | |
2935 | #ifndef HAS_FGETPOS |
2936 | #undef PerlIO_getpos |
2937 | int |
c78749f2 |
2938 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
760ac839 |
2939 | { |
2940 | *pos = PerlIO_tell(f); |
a17c7222 |
2941 | return *pos == -1 ? -1 : 0; |
760ac839 |
2942 | } |
c411622e |
2943 | #else |
2944 | #ifndef PERLIO_IS_STDIO |
2945 | #undef PerlIO_getpos |
2946 | int |
c78749f2 |
2947 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
c411622e |
2948 | { |
2d4389e4 |
2949 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d |
2950 | return fgetpos64(f, pos); |
2951 | #else |
c411622e |
2952 | return fgetpos(f, pos); |
d9b3e12d |
2953 | #endif |
c411622e |
2954 | } |
2955 | #endif |
760ac839 |
2956 | #endif |
2957 | |
2958 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) |
2959 | |
2960 | int |
c78749f2 |
2961 | vprintf(char *pat, char *args) |
662a7e3f |
2962 | { |
2963 | _doprnt(pat, args, stdout); |
2964 | return 0; /* wrong, but perl doesn't use the return value */ |
2965 | } |
2966 | |
2967 | int |
c78749f2 |
2968 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 |
2969 | { |
2970 | _doprnt(pat, args, fd); |
2971 | return 0; /* wrong, but perl doesn't use the return value */ |
2972 | } |
2973 | |
2974 | #endif |
2975 | |
2976 | #ifndef PerlIO_vsprintf |
6f9d8c32 |
2977 | int |
8ac85365 |
2978 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 |
2979 | { |
2980 | int val = vsprintf(s, fmt, ap); |
2981 | if (n >= 0) |
2982 | { |
8c86a920 |
2983 | if (strlen(s) >= (STRLEN)n) |
760ac839 |
2984 | { |
bf49b057 |
2985 | dTHX; |
fb4a9925 |
2986 | (void)PerlIO_puts(Perl_error_log, |
2987 | "panic: sprintf overflow - memory corrupted!\n"); |
bf49b057 |
2988 | my_exit(1); |
760ac839 |
2989 | } |
2990 | } |
2991 | return val; |
2992 | } |
2993 | #endif |
2994 | |
2995 | #ifndef PerlIO_sprintf |
6f9d8c32 |
2996 | int |
760ac839 |
2997 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 |
2998 | { |
2999 | va_list ap; |
3000 | int result; |
760ac839 |
3001 | va_start(ap,fmt); |
760ac839 |
3002 | result = PerlIO_vsprintf(s, n, fmt, ap); |
3003 | va_end(ap); |
3004 | return result; |
3005 | } |
3006 | #endif |
3007 | |
c5be433b |
3008 | #endif /* !PERL_IMPLICIT_SYS */ |
3009 | |