Commit | Line | Data |
---|---|---|
760ac839 LW |
1 | /* perlio.c |
2 | * | |
1761cee5 | 3 | * Copyright (c) 1996-2000, Nick Ing-Simmons |
760ac839 LW |
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 JH |
11 | #ifdef PERL_MICRO |
12 | # include "uconfig.h" | |
13 | #else | |
14 | # include "config.h" | |
15 | #endif | |
760ac839 | 16 | |
6f9d8c32 | 17 | #define PERLIO_NOT_STDIO 0 |
760ac839 | 18 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
6f9d8c32 | 19 | /* #define PerlIO FILE */ |
760ac839 LW |
20 | #endif |
21 | /* | |
6f9d8c32 | 22 | * This file provides those parts of PerlIO abstraction |
0f4eea8f | 23 | * which are not #defined in iperlsys.h. |
6f9d8c32 | 24 | * Which these are depends on various Configure #ifdef's |
760ac839 LW |
25 | */ |
26 | ||
27 | #include "EXTERN.h" | |
864dbfa3 | 28 | #define PERL_IN_PERLIO_C |
760ac839 LW |
29 | #include "perl.h" |
30 | ||
32e30700 GS |
31 | #if !defined(PERL_IMPLICIT_SYS) |
32 | ||
6f9d8c32 | 33 | #ifdef PERLIO_IS_STDIO |
760ac839 LW |
34 | |
35 | void | |
8ac85365 | 36 | PerlIO_init(void) |
760ac839 | 37 | { |
6f9d8c32 | 38 | /* Does nothing (yet) except force this file to be included |
760ac839 | 39 | in perl binary. That allows this file to force inclusion |
6f9d8c32 NIS |
40 | of other functions that may be required by loadable |
41 | extensions e.g. for FileHandle::tmpfile | |
760ac839 LW |
42 | */ |
43 | } | |
44 | ||
33dcbb9a | 45 | #undef PerlIO_tmpfile |
46 | PerlIO * | |
8ac85365 | 47 | PerlIO_tmpfile(void) |
33dcbb9a | 48 | { |
49 | return tmpfile(); | |
50 | } | |
51 | ||
760ac839 LW |
52 | #else /* PERLIO_IS_STDIO */ |
53 | ||
54 | #ifdef USE_SFIO | |
55 | ||
56 | #undef HAS_FSETPOS | |
57 | #undef HAS_FGETPOS | |
58 | ||
6f9d8c32 | 59 | /* This section is just to make sure these functions |
760ac839 LW |
60 | get pulled in from libsfio.a |
61 | */ | |
62 | ||
63 | #undef PerlIO_tmpfile | |
64 | PerlIO * | |
c78749f2 | 65 | PerlIO_tmpfile(void) |
760ac839 LW |
66 | { |
67 | return sftmp(0); | |
68 | } | |
69 | ||
70 | void | |
c78749f2 | 71 | PerlIO_init(void) |
760ac839 | 72 | { |
6f9d8c32 NIS |
73 | /* Force this file to be included in perl binary. Which allows |
74 | * this file to force inclusion of other functions that may be | |
75 | * required by loadable extensions e.g. for FileHandle::tmpfile | |
760ac839 LW |
76 | */ |
77 | ||
78 | /* Hack | |
79 | * sfio does its own 'autoflush' on stdout in common cases. | |
6f9d8c32 | 80 | * Flush results in a lot of lseek()s to regular files and |
760ac839 LW |
81 | * lot of small writes to pipes. |
82 | */ | |
83 | sfset(sfstdout,SF_SHARE,0); | |
84 | } | |
85 | ||
17c3b450 | 86 | #else /* USE_SFIO */ |
6f9d8c32 | 87 | /*======================================================================================*/ |
6f9d8c32 | 88 | /* Implement all the PerlIO interface ourselves. |
9e353e3b | 89 | */ |
760ac839 | 90 | |
76ced9ad NIS |
91 | #include "perliol.h" |
92 | ||
b1ef6e3b | 93 | /* We _MUST_ have <unistd.h> if we are using lseek() and may have large files */ |
02f66e2f NIS |
94 | #ifdef I_UNISTD |
95 | #include <unistd.h> | |
96 | #endif | |
06da4f11 NIS |
97 | #ifdef HAS_MMAP |
98 | #include <sys/mman.h> | |
99 | #endif | |
100 | ||
f3862f8b | 101 | #include "XSUB.h" |
02f66e2f | 102 | |
76ced9ad | 103 | void PerlIO_debug(char *fmt,...) __attribute__((format(__printf__,1,2))); |
6f9d8c32 | 104 | |
6f9d8c32 NIS |
105 | void |
106 | PerlIO_debug(char *fmt,...) | |
107 | { | |
108 | static int dbg = 0; | |
109 | if (!dbg) | |
110 | { | |
00b02797 | 111 | char *s = PerlEnv_getenv("PERLIO_DEBUG"); |
6f9d8c32 | 112 | if (s && *s) |
00b02797 | 113 | dbg = PerlLIO_open3(s,O_WRONLY|O_CREAT|O_APPEND,0666); |
6f9d8c32 NIS |
114 | else |
115 | dbg = -1; | |
116 | } | |
117 | if (dbg > 0) | |
118 | { | |
119 | dTHX; | |
120 | va_list ap; | |
121 | SV *sv = newSVpvn("",0); | |
122 | char *s; | |
123 | STRLEN len; | |
124 | va_start(ap,fmt); | |
05d1247b NIS |
125 | s = CopFILE(PL_curcop); |
126 | if (!s) | |
127 | s = "(none)"; | |
128 | Perl_sv_catpvf(aTHX_ sv, "%s:%"IVdf" ", s, (IV)CopLINE(PL_curcop)); | |
c7fc522f NIS |
129 | Perl_sv_vcatpvf(aTHX_ sv, fmt, &ap); |
130 | ||
6f9d8c32 | 131 | s = SvPV(sv,len); |
00b02797 | 132 | PerlLIO_write(dbg,s,len); |
6f9d8c32 NIS |
133 | va_end(ap); |
134 | SvREFCNT_dec(sv); | |
135 | } | |
136 | } | |
137 | ||
9e353e3b NIS |
138 | /*--------------------------------------------------------------------------------------*/ |
139 | ||
9e353e3b NIS |
140 | /* Inner level routines */ |
141 | ||
b1ef6e3b | 142 | /* Table of pointers to the PerlIO structs (malloc'ed) */ |
05d1247b NIS |
143 | PerlIO *_perlio = NULL; |
144 | #define PERLIO_TABLE_SIZE 64 | |
6f9d8c32 | 145 | |
760ac839 | 146 | PerlIO * |
6f9d8c32 NIS |
147 | PerlIO_allocate(void) |
148 | { | |
f3862f8b | 149 | /* Find a free slot in the table, allocating new table as necessary */ |
05d1247b | 150 | PerlIO **last = &_perlio; |
6f9d8c32 | 151 | PerlIO *f; |
05d1247b | 152 | while ((f = *last)) |
6f9d8c32 | 153 | { |
05d1247b NIS |
154 | int i; |
155 | last = (PerlIO **)(f); | |
156 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
6f9d8c32 | 157 | { |
05d1247b | 158 | if (!*++f) |
6f9d8c32 | 159 | { |
6f9d8c32 NIS |
160 | return f; |
161 | } | |
6f9d8c32 | 162 | } |
6f9d8c32 | 163 | } |
05d1247b NIS |
164 | Newz('I',f,PERLIO_TABLE_SIZE,PerlIO); |
165 | if (!f) | |
166 | return NULL; | |
167 | *last = f; | |
168 | return f+1; | |
169 | } | |
170 | ||
171 | void | |
172 | PerlIO_cleantable(PerlIO **tablep) | |
173 | { | |
174 | PerlIO *table = *tablep; | |
175 | if (table) | |
176 | { | |
177 | int i; | |
178 | PerlIO_cleantable((PerlIO **) &(table[0])); | |
179 | for (i=PERLIO_TABLE_SIZE-1; i > 0; i--) | |
180 | { | |
181 | PerlIO *f = table+i; | |
182 | if (*f) | |
183 | PerlIO_close(f); | |
184 | } | |
185 | Safefree(table); | |
186 | *tablep = NULL; | |
187 | } | |
188 | } | |
189 | ||
4a4a6116 NIS |
190 | HV *PerlIO_layer_hv; |
191 | AV *PerlIO_layer_av; | |
192 | ||
05d1247b NIS |
193 | void |
194 | PerlIO_cleanup(void) | |
195 | { | |
196 | PerlIO_cleantable(&_perlio); | |
6f9d8c32 NIS |
197 | } |
198 | ||
9e353e3b NIS |
199 | void |
200 | PerlIO_pop(PerlIO *f) | |
760ac839 | 201 | { |
9e353e3b NIS |
202 | PerlIOl *l = *f; |
203 | if (l) | |
6f9d8c32 | 204 | { |
06da4f11 | 205 | (*l->tab->Popped)(f); |
9e353e3b NIS |
206 | *f = l->next; |
207 | Safefree(l); | |
6f9d8c32 | 208 | } |
6f9d8c32 NIS |
209 | } |
210 | ||
211 | #undef PerlIO_close | |
212 | int | |
213 | PerlIO_close(PerlIO *f) | |
214 | { | |
9e353e3b NIS |
215 | int code = (*PerlIOBase(f)->tab->Close)(f); |
216 | while (*f) | |
6f9d8c32 | 217 | { |
9e353e3b | 218 | PerlIO_pop(f); |
6f9d8c32 NIS |
219 | } |
220 | return code; | |
221 | } | |
222 | ||
9e353e3b NIS |
223 | |
224 | /*--------------------------------------------------------------------------------------*/ | |
225 | /* Given the abstraction above the public API functions */ | |
226 | ||
227 | #undef PerlIO_fileno | |
228 | int | |
229 | PerlIO_fileno(PerlIO *f) | |
230 | { | |
231 | return (*PerlIOBase(f)->tab->Fileno)(f); | |
232 | } | |
233 | ||
b13b2135 | 234 | XS(XS_io_import) |
f3862f8b NIS |
235 | { |
236 | dXSARGS; | |
237 | GV *gv = CvGV(cv); | |
238 | char *s = GvNAME(gv); | |
239 | STRLEN l = GvNAMELEN(gv); | |
240 | PerlIO_debug("%.*s\n",(int) l,s); | |
241 | XSRETURN_EMPTY; | |
242 | } | |
243 | ||
b13b2135 | 244 | XS(XS_io_unimport) |
f3862f8b NIS |
245 | { |
246 | dXSARGS; | |
247 | GV *gv = CvGV(cv); | |
248 | char *s = GvNAME(gv); | |
249 | STRLEN l = GvNAMELEN(gv); | |
250 | PerlIO_debug("%.*s\n",(int) l,s); | |
251 | XSRETURN_EMPTY; | |
252 | } | |
253 | ||
f3862f8b NIS |
254 | SV * |
255 | PerlIO_find_layer(char *name, STRLEN len) | |
256 | { | |
257 | dTHX; | |
258 | SV **svp; | |
259 | SV *sv; | |
260 | if (len <= 0) | |
261 | len = strlen(name); | |
262 | svp = hv_fetch(PerlIO_layer_hv,name,len,0); | |
263 | if (svp && (sv = *svp) && SvROK(sv)) | |
264 | return *svp; | |
265 | return NULL; | |
266 | } | |
267 | ||
b13b2135 NIS |
268 | |
269 | static int | |
270 | perlio_mg_set(pTHX_ SV *sv, MAGIC *mg) | |
271 | { | |
272 | if (SvROK(sv)) | |
273 | { | |
274 | IO *io = GvIOn(SvRV(sv)); | |
275 | PerlIO *ifp = IoIFP(io); | |
276 | PerlIO *ofp = IoOFP(io); | |
277 | AV *av = (AV *) mg->mg_obj; | |
278 | Perl_warn(aTHX_ "set %_ %p %p %p",sv,io,ifp,ofp); | |
279 | } | |
280 | return 0; | |
281 | } | |
282 | ||
283 | static int | |
284 | perlio_mg_get(pTHX_ SV *sv, MAGIC *mg) | |
285 | { | |
286 | if (SvROK(sv)) | |
287 | { | |
288 | IO *io = GvIOn(SvRV(sv)); | |
289 | PerlIO *ifp = IoIFP(io); | |
290 | PerlIO *ofp = IoOFP(io); | |
291 | AV *av = (AV *) mg->mg_obj; | |
292 | Perl_warn(aTHX_ "get %_ %p %p %p",sv,io,ifp,ofp); | |
293 | } | |
294 | return 0; | |
295 | } | |
296 | ||
297 | static int | |
298 | perlio_mg_clear(pTHX_ SV *sv, MAGIC *mg) | |
299 | { | |
300 | Perl_warn(aTHX_ "clear %_",sv); | |
301 | return 0; | |
302 | } | |
303 | ||
304 | static int | |
305 | perlio_mg_free(pTHX_ SV *sv, MAGIC *mg) | |
306 | { | |
307 | Perl_warn(aTHX_ "free %_",sv); | |
308 | return 0; | |
309 | } | |
310 | ||
311 | MGVTBL perlio_vtab = { | |
312 | perlio_mg_get, | |
313 | perlio_mg_set, | |
314 | NULL, /* len */ | |
315 | NULL, | |
316 | perlio_mg_free | |
317 | }; | |
318 | ||
319 | XS(XS_io_MODIFY_SCALAR_ATTRIBUTES) | |
320 | { | |
321 | dXSARGS; | |
322 | SV *sv = SvRV(ST(1)); | |
323 | AV *av = newAV(); | |
324 | MAGIC *mg; | |
325 | int count = 0; | |
326 | int i; | |
327 | sv_magic(sv, (SV *)av, '~', NULL, 0); | |
328 | SvRMAGICAL_off(sv); | |
329 | mg = mg_find(sv,'~'); | |
330 | mg->mg_virtual = &perlio_vtab; | |
331 | mg_magical(sv); | |
332 | Perl_warn(aTHX_ "attrib %_",sv); | |
333 | for (i=2; i < items; i++) | |
334 | { | |
335 | STRLEN len; | |
336 | char *name = SvPV(ST(i),len); | |
337 | SV *layer = PerlIO_find_layer(name,len); | |
338 | if (layer) | |
339 | { | |
340 | av_push(av,SvREFCNT_inc(layer)); | |
341 | } | |
342 | else | |
343 | { | |
344 | ST(count) = ST(i); | |
345 | count++; | |
346 | } | |
347 | } | |
348 | SvREFCNT_dec(av); | |
349 | XSRETURN(count); | |
350 | } | |
351 | ||
f3862f8b NIS |
352 | void |
353 | PerlIO_define_layer(PerlIO_funcs *tab) | |
354 | { | |
355 | dTHX; | |
b13b2135 | 356 | HV *stash = gv_stashpv("io::Layer", TRUE); |
e7778b43 | 357 | SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(tab))),stash); |
f3862f8b NIS |
358 | hv_store(PerlIO_layer_hv,tab->name,strlen(tab->name),sv,0); |
359 | } | |
360 | ||
361 | PerlIO_funcs * | |
362 | PerlIO_default_layer(I32 n) | |
363 | { | |
364 | dTHX; | |
365 | SV **svp; | |
366 | SV *layer; | |
367 | PerlIO_funcs *tab = &PerlIO_stdio; | |
368 | int len; | |
369 | if (!PerlIO_layer_hv) | |
370 | { | |
00b02797 | 371 | char *s = PerlEnv_getenv("PERLIO"); |
b13b2135 NIS |
372 | newXS("io::import",XS_io_import,__FILE__); |
373 | newXS("io::unimport",XS_io_unimport,__FILE__); | |
374 | newXS("io::MODIFY_SCALAR_ATTRIBUTES",XS_io_MODIFY_SCALAR_ATTRIBUTES,__FILE__); | |
375 | PerlIO_layer_hv = get_hv("io::layers",GV_ADD|GV_ADDMULTI); | |
376 | PerlIO_layer_av = get_av("io::layers",GV_ADD|GV_ADDMULTI); | |
f3862f8b | 377 | PerlIO_define_layer(&PerlIO_unix); |
f3862f8b NIS |
378 | PerlIO_define_layer(&PerlIO_perlio); |
379 | PerlIO_define_layer(&PerlIO_stdio); | |
06da4f11 NIS |
380 | #ifdef HAS_MMAP |
381 | PerlIO_define_layer(&PerlIO_mmap); | |
382 | #endif | |
f3862f8b NIS |
383 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_unix.name,0))); |
384 | if (s) | |
385 | { | |
386 | while (*s) | |
387 | { | |
00b02797 | 388 | while (*s && isSPACE((unsigned char)*s)) |
f3862f8b NIS |
389 | s++; |
390 | if (*s) | |
391 | { | |
392 | char *e = s; | |
393 | SV *layer; | |
00b02797 | 394 | while (*e && !isSPACE((unsigned char)*e)) |
f3862f8b NIS |
395 | e++; |
396 | layer = PerlIO_find_layer(s,e-s); | |
397 | if (layer) | |
398 | { | |
399 | PerlIO_debug("Pushing %.*s\n",(e-s),s); | |
400 | av_push(PerlIO_layer_av,SvREFCNT_inc(layer)); | |
401 | } | |
402 | else | |
ef0f9817 | 403 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(e-s),s); |
f3862f8b NIS |
404 | s = e; |
405 | } | |
406 | } | |
407 | } | |
408 | } | |
409 | len = av_len(PerlIO_layer_av); | |
410 | if (len < 1) | |
411 | { | |
412 | if (PerlIO_stdio.Set_ptrcnt) | |
413 | { | |
414 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_stdio.name,0))); | |
415 | } | |
416 | else | |
417 | { | |
418 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_perlio.name,0))); | |
419 | } | |
420 | len = av_len(PerlIO_layer_av); | |
421 | } | |
422 | if (n < 0) | |
423 | n += len+1; | |
424 | svp = av_fetch(PerlIO_layer_av,n,0); | |
425 | if (svp && (layer = *svp) && SvROK(layer) && SvIOK((layer = SvRV(layer)))) | |
426 | { | |
e7778b43 | 427 | tab = INT2PTR(PerlIO_funcs *, SvIV(layer)); |
f3862f8b NIS |
428 | } |
429 | /* PerlIO_debug("Layer %d is %s\n",n,tab->name); */ | |
430 | return tab; | |
431 | } | |
432 | ||
433 | #define PerlIO_default_top() PerlIO_default_layer(-1) | |
434 | #define PerlIO_default_btm() PerlIO_default_layer(0) | |
435 | ||
436 | void | |
437 | PerlIO_stdstreams() | |
438 | { | |
439 | if (!_perlio) | |
440 | { | |
441 | PerlIO_allocate(); | |
442 | PerlIO_fdopen(0,"Ir"); | |
443 | PerlIO_fdopen(1,"Iw"); | |
444 | PerlIO_fdopen(2,"Iw"); | |
445 | } | |
446 | } | |
9e353e3b | 447 | |
76ced9ad NIS |
448 | PerlIO * |
449 | PerlIO_push(PerlIO *f,PerlIO_funcs *tab,const char *mode) | |
450 | { | |
451 | PerlIOl *l = NULL; | |
452 | Newc('L',l,tab->size,char,PerlIOl); | |
453 | if (l) | |
454 | { | |
455 | Zero(l,tab->size,char); | |
456 | l->next = *f; | |
457 | l->tab = tab; | |
458 | *f = l; | |
459 | if ((*l->tab->Pushed)(f,mode) != 0) | |
460 | { | |
461 | PerlIO_pop(f); | |
462 | return NULL; | |
463 | } | |
464 | } | |
465 | return f; | |
466 | } | |
467 | ||
9e353e3b NIS |
468 | #undef PerlIO_fdopen |
469 | PerlIO * | |
470 | PerlIO_fdopen(int fd, const char *mode) | |
471 | { | |
472 | PerlIO_funcs *tab = PerlIO_default_top(); | |
f3862f8b NIS |
473 | if (!_perlio) |
474 | PerlIO_stdstreams(); | |
06da4f11 | 475 | return (*tab->Fdopen)(tab,fd,mode); |
9e353e3b NIS |
476 | } |
477 | ||
6f9d8c32 NIS |
478 | #undef PerlIO_open |
479 | PerlIO * | |
480 | PerlIO_open(const char *path, const char *mode) | |
481 | { | |
9e353e3b | 482 | PerlIO_funcs *tab = PerlIO_default_top(); |
f3862f8b NIS |
483 | if (!_perlio) |
484 | PerlIO_stdstreams(); | |
06da4f11 | 485 | return (*tab->Open)(tab,path,mode); |
6f9d8c32 NIS |
486 | } |
487 | ||
9e353e3b NIS |
488 | #undef PerlIO_reopen |
489 | PerlIO * | |
490 | PerlIO_reopen(const char *path, const char *mode, PerlIO *f) | |
6f9d8c32 | 491 | { |
9e353e3b | 492 | if (f) |
6f9d8c32 | 493 | { |
9e353e3b NIS |
494 | PerlIO_flush(f); |
495 | if ((*PerlIOBase(f)->tab->Reopen)(path,mode,f) == 0) | |
496 | { | |
06da4f11 NIS |
497 | if ((*PerlIOBase(f)->tab->Pushed)(f,mode) == 0) |
498 | return f; | |
9e353e3b NIS |
499 | } |
500 | return NULL; | |
6f9d8c32 | 501 | } |
9e353e3b NIS |
502 | else |
503 | return PerlIO_open(path,mode); | |
760ac839 LW |
504 | } |
505 | ||
9e353e3b NIS |
506 | #undef PerlIO_read |
507 | SSize_t | |
508 | PerlIO_read(PerlIO *f, void *vbuf, Size_t count) | |
6f9d8c32 | 509 | { |
9e353e3b | 510 | return (*PerlIOBase(f)->tab->Read)(f,vbuf,count); |
760ac839 LW |
511 | } |
512 | ||
313ca112 NIS |
513 | #undef PerlIO_unread |
514 | SSize_t | |
515 | PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 516 | { |
313ca112 | 517 | return (*PerlIOBase(f)->tab->Unread)(f,vbuf,count); |
760ac839 LW |
518 | } |
519 | ||
9e353e3b NIS |
520 | #undef PerlIO_write |
521 | SSize_t | |
522 | PerlIO_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 523 | { |
9e353e3b | 524 | return (*PerlIOBase(f)->tab->Write)(f,vbuf,count); |
760ac839 LW |
525 | } |
526 | ||
9e353e3b | 527 | #undef PerlIO_seek |
6f9d8c32 | 528 | int |
9e353e3b | 529 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 | 530 | { |
9e353e3b | 531 | return (*PerlIOBase(f)->tab->Seek)(f,offset,whence); |
760ac839 LW |
532 | } |
533 | ||
9e353e3b NIS |
534 | #undef PerlIO_tell |
535 | Off_t | |
536 | PerlIO_tell(PerlIO *f) | |
760ac839 | 537 | { |
9e353e3b | 538 | return (*PerlIOBase(f)->tab->Tell)(f); |
760ac839 LW |
539 | } |
540 | ||
9e353e3b | 541 | #undef PerlIO_flush |
6f9d8c32 | 542 | int |
9e353e3b | 543 | PerlIO_flush(PerlIO *f) |
760ac839 | 544 | { |
6f9d8c32 NIS |
545 | if (f) |
546 | { | |
9e353e3b | 547 | return (*PerlIOBase(f)->tab->Flush)(f); |
6f9d8c32 | 548 | } |
9e353e3b | 549 | else |
6f9d8c32 | 550 | { |
05d1247b | 551 | PerlIO **table = &_perlio; |
9e353e3b | 552 | int code = 0; |
05d1247b | 553 | while ((f = *table)) |
6f9d8c32 | 554 | { |
05d1247b NIS |
555 | int i; |
556 | table = (PerlIO **)(f++); | |
557 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
9e353e3b NIS |
558 | { |
559 | if (*f && PerlIO_flush(f) != 0) | |
560 | code = -1; | |
05d1247b | 561 | f++; |
9e353e3b | 562 | } |
6f9d8c32 | 563 | } |
9e353e3b | 564 | return code; |
6f9d8c32 | 565 | } |
760ac839 LW |
566 | } |
567 | ||
06da4f11 NIS |
568 | #undef PerlIO_fill |
569 | int | |
570 | PerlIO_fill(PerlIO *f) | |
571 | { | |
572 | return (*PerlIOBase(f)->tab->Fill)(f); | |
573 | } | |
574 | ||
f3862f8b NIS |
575 | #undef PerlIO_isutf8 |
576 | int | |
577 | PerlIO_isutf8(PerlIO *f) | |
578 | { | |
579 | return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0; | |
580 | } | |
581 | ||
9e353e3b | 582 | #undef PerlIO_eof |
6f9d8c32 | 583 | int |
9e353e3b | 584 | PerlIO_eof(PerlIO *f) |
760ac839 | 585 | { |
9e353e3b NIS |
586 | return (*PerlIOBase(f)->tab->Eof)(f); |
587 | } | |
588 | ||
589 | #undef PerlIO_error | |
590 | int | |
591 | PerlIO_error(PerlIO *f) | |
592 | { | |
593 | return (*PerlIOBase(f)->tab->Error)(f); | |
594 | } | |
595 | ||
596 | #undef PerlIO_clearerr | |
597 | void | |
598 | PerlIO_clearerr(PerlIO *f) | |
599 | { | |
600 | (*PerlIOBase(f)->tab->Clearerr)(f); | |
601 | } | |
602 | ||
603 | #undef PerlIO_setlinebuf | |
604 | void | |
605 | PerlIO_setlinebuf(PerlIO *f) | |
606 | { | |
607 | (*PerlIOBase(f)->tab->Setlinebuf)(f); | |
608 | } | |
609 | ||
610 | #undef PerlIO_has_base | |
611 | int | |
612 | PerlIO_has_base(PerlIO *f) | |
613 | { | |
614 | if (f && *f) | |
6f9d8c32 | 615 | { |
9e353e3b | 616 | return (PerlIOBase(f)->tab->Get_base != NULL); |
6f9d8c32 | 617 | } |
9e353e3b | 618 | return 0; |
760ac839 LW |
619 | } |
620 | ||
9e353e3b NIS |
621 | #undef PerlIO_fast_gets |
622 | int | |
623 | PerlIO_fast_gets(PerlIO *f) | |
760ac839 | 624 | { |
9e353e3b | 625 | if (f && *f) |
6f9d8c32 | 626 | { |
c7fc522f NIS |
627 | PerlIOl *l = PerlIOBase(f); |
628 | return (l->tab->Set_ptrcnt != NULL); | |
6f9d8c32 | 629 | } |
9e353e3b NIS |
630 | return 0; |
631 | } | |
632 | ||
633 | #undef PerlIO_has_cntptr | |
634 | int | |
635 | PerlIO_has_cntptr(PerlIO *f) | |
636 | { | |
637 | if (f && *f) | |
638 | { | |
639 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
640 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); | |
641 | } | |
642 | return 0; | |
643 | } | |
644 | ||
645 | #undef PerlIO_canset_cnt | |
646 | int | |
647 | PerlIO_canset_cnt(PerlIO *f) | |
648 | { | |
649 | if (f && *f) | |
650 | { | |
c7fc522f NIS |
651 | PerlIOl *l = PerlIOBase(f); |
652 | return (l->tab->Set_ptrcnt != NULL); | |
9e353e3b | 653 | } |
c7fc522f | 654 | return 0; |
760ac839 LW |
655 | } |
656 | ||
657 | #undef PerlIO_get_base | |
888911fc | 658 | STDCHAR * |
a20bf0c3 | 659 | PerlIO_get_base(PerlIO *f) |
760ac839 | 660 | { |
9e353e3b NIS |
661 | return (*PerlIOBase(f)->tab->Get_base)(f); |
662 | } | |
663 | ||
664 | #undef PerlIO_get_bufsiz | |
665 | int | |
666 | PerlIO_get_bufsiz(PerlIO *f) | |
667 | { | |
668 | return (*PerlIOBase(f)->tab->Get_bufsiz)(f); | |
669 | } | |
670 | ||
671 | #undef PerlIO_get_ptr | |
672 | STDCHAR * | |
673 | PerlIO_get_ptr(PerlIO *f) | |
674 | { | |
675 | return (*PerlIOBase(f)->tab->Get_ptr)(f); | |
676 | } | |
677 | ||
678 | #undef PerlIO_get_cnt | |
05d1247b | 679 | int |
9e353e3b NIS |
680 | PerlIO_get_cnt(PerlIO *f) |
681 | { | |
682 | return (*PerlIOBase(f)->tab->Get_cnt)(f); | |
683 | } | |
684 | ||
685 | #undef PerlIO_set_cnt | |
686 | void | |
05d1247b | 687 | PerlIO_set_cnt(PerlIO *f,int cnt) |
9e353e3b | 688 | { |
f3862f8b | 689 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt); |
9e353e3b NIS |
690 | } |
691 | ||
692 | #undef PerlIO_set_ptrcnt | |
693 | void | |
05d1247b | 694 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) |
9e353e3b | 695 | { |
f3862f8b | 696 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt); |
9e353e3b NIS |
697 | } |
698 | ||
699 | /*--------------------------------------------------------------------------------------*/ | |
700 | /* "Methods" of the "base class" */ | |
701 | ||
702 | IV | |
703 | PerlIOBase_fileno(PerlIO *f) | |
704 | { | |
705 | return PerlIO_fileno(PerlIONext(f)); | |
706 | } | |
707 | ||
76ced9ad NIS |
708 | IV |
709 | PerlIOBase_pushed(PerlIO *f, const char *mode) | |
9e353e3b | 710 | { |
76ced9ad NIS |
711 | PerlIOl *l = PerlIOBase(f); |
712 | l->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE| | |
713 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY); | |
714 | if (mode) | |
6f9d8c32 | 715 | { |
76ced9ad | 716 | switch (*mode++) |
06da4f11 | 717 | { |
76ced9ad NIS |
718 | case 'r': |
719 | l->flags = PERLIO_F_CANREAD; | |
720 | break; | |
721 | case 'a': | |
722 | l->flags = PERLIO_F_APPEND|PERLIO_F_CANWRITE; | |
723 | break; | |
724 | case 'w': | |
725 | l->flags = PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE; | |
726 | break; | |
727 | default: | |
728 | errno = EINVAL; | |
729 | return -1; | |
730 | } | |
731 | while (*mode) | |
732 | { | |
733 | switch (*mode++) | |
734 | { | |
735 | case '+': | |
736 | l->flags |= PERLIO_F_CANREAD|PERLIO_F_CANWRITE; | |
737 | break; | |
738 | case 'b': | |
739 | l->flags |= PERLIO_F_BINARY; | |
740 | break; | |
741 | default: | |
742 | errno = EINVAL; | |
743 | return -1; | |
744 | } | |
06da4f11 | 745 | } |
6f9d8c32 | 746 | } |
76ced9ad NIS |
747 | else |
748 | { | |
749 | if (l->next) | |
750 | { | |
751 | l->flags |= l->next->flags & | |
752 | (PERLIO_F_CANREAD|PERLIO_F_CANWRITE| | |
753 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY); | |
754 | } | |
755 | } | |
756 | return 0; | |
757 | } | |
758 | ||
759 | IV | |
760 | PerlIOBase_popped(PerlIO *f) | |
761 | { | |
762 | return 0; | |
760ac839 LW |
763 | } |
764 | ||
9e353e3b NIS |
765 | SSize_t |
766 | PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count) | |
767 | { | |
768 | Off_t old = PerlIO_tell(f); | |
769 | if (PerlIO_seek(f,-((Off_t)count),SEEK_CUR) == 0) | |
770 | { | |
771 | Off_t new = PerlIO_tell(f); | |
772 | return old - new; | |
773 | } | |
774 | return 0; | |
775 | } | |
776 | ||
777 | IV | |
06da4f11 | 778 | PerlIOBase_noop_ok(PerlIO *f) |
9e353e3b NIS |
779 | { |
780 | return 0; | |
781 | } | |
782 | ||
783 | IV | |
06da4f11 NIS |
784 | PerlIOBase_noop_fail(PerlIO *f) |
785 | { | |
786 | return -1; | |
787 | } | |
788 | ||
789 | IV | |
9e353e3b NIS |
790 | PerlIOBase_close(PerlIO *f) |
791 | { | |
792 | IV code = 0; | |
793 | if (PerlIO_flush(f) != 0) | |
794 | code = -1; | |
795 | if (PerlIO_close(PerlIONext(f)) != 0) | |
796 | code = -1; | |
797 | PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN); | |
798 | return code; | |
799 | } | |
800 | ||
801 | IV | |
802 | PerlIOBase_eof(PerlIO *f) | |
803 | { | |
804 | if (f && *f) | |
805 | { | |
806 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; | |
807 | } | |
808 | return 1; | |
809 | } | |
810 | ||
811 | IV | |
812 | PerlIOBase_error(PerlIO *f) | |
813 | { | |
814 | if (f && *f) | |
815 | { | |
816 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; | |
817 | } | |
818 | return 1; | |
819 | } | |
820 | ||
821 | void | |
822 | PerlIOBase_clearerr(PerlIO *f) | |
823 | { | |
824 | if (f && *f) | |
825 | { | |
826 | PerlIOBase(f)->flags &= ~PERLIO_F_ERROR; | |
827 | } | |
828 | } | |
829 | ||
830 | void | |
831 | PerlIOBase_setlinebuf(PerlIO *f) | |
832 | { | |
833 | ||
834 | } | |
835 | ||
9e353e3b NIS |
836 | /*--------------------------------------------------------------------------------------*/ |
837 | /* Bottom-most level for UNIX-like case */ | |
838 | ||
839 | typedef struct | |
840 | { | |
841 | struct _PerlIO base; /* The generic part */ | |
842 | int fd; /* UNIX like file descriptor */ | |
843 | int oflags; /* open/fcntl flags */ | |
844 | } PerlIOUnix; | |
845 | ||
6f9d8c32 | 846 | int |
9e353e3b | 847 | PerlIOUnix_oflags(const char *mode) |
760ac839 | 848 | { |
9e353e3b NIS |
849 | int oflags = -1; |
850 | switch(*mode) | |
851 | { | |
852 | case 'r': | |
853 | oflags = O_RDONLY; | |
854 | if (*++mode == '+') | |
855 | { | |
856 | oflags = O_RDWR; | |
857 | mode++; | |
858 | } | |
859 | break; | |
860 | ||
861 | case 'w': | |
862 | oflags = O_CREAT|O_TRUNC; | |
863 | if (*++mode == '+') | |
864 | { | |
865 | oflags |= O_RDWR; | |
866 | mode++; | |
867 | } | |
868 | else | |
869 | oflags |= O_WRONLY; | |
870 | break; | |
871 | ||
872 | case 'a': | |
873 | oflags = O_CREAT|O_APPEND; | |
874 | if (*++mode == '+') | |
875 | { | |
876 | oflags |= O_RDWR; | |
877 | mode++; | |
878 | } | |
879 | else | |
880 | oflags |= O_WRONLY; | |
881 | break; | |
882 | } | |
883 | if (*mode || oflags == -1) | |
6f9d8c32 | 884 | { |
9e353e3b NIS |
885 | errno = EINVAL; |
886 | oflags = -1; | |
6f9d8c32 | 887 | } |
9e353e3b NIS |
888 | return oflags; |
889 | } | |
890 | ||
891 | IV | |
892 | PerlIOUnix_fileno(PerlIO *f) | |
893 | { | |
894 | return PerlIOSelf(f,PerlIOUnix)->fd; | |
895 | } | |
896 | ||
897 | PerlIO * | |
06da4f11 | 898 | PerlIOUnix_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b NIS |
899 | { |
900 | PerlIO *f = NULL; | |
c7fc522f NIS |
901 | if (*mode == 'I') |
902 | mode++; | |
9e353e3b NIS |
903 | if (fd >= 0) |
904 | { | |
905 | int oflags = PerlIOUnix_oflags(mode); | |
906 | if (oflags != -1) | |
907 | { | |
06da4f11 | 908 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOUnix); |
9e353e3b NIS |
909 | s->fd = fd; |
910 | s->oflags = oflags; | |
911 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
912 | } | |
913 | } | |
914 | return f; | |
915 | } | |
916 | ||
917 | PerlIO * | |
06da4f11 | 918 | PerlIOUnix_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b NIS |
919 | { |
920 | PerlIO *f = NULL; | |
921 | int oflags = PerlIOUnix_oflags(mode); | |
922 | if (oflags != -1) | |
923 | { | |
00b02797 | 924 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b NIS |
925 | if (fd >= 0) |
926 | { | |
06da4f11 | 927 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOUnix); |
9e353e3b NIS |
928 | s->fd = fd; |
929 | s->oflags = oflags; | |
930 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
931 | } | |
932 | } | |
933 | return f; | |
760ac839 LW |
934 | } |
935 | ||
760ac839 | 936 | int |
9e353e3b | 937 | PerlIOUnix_reopen(const char *path, const char *mode, PerlIO *f) |
760ac839 | 938 | { |
9e353e3b NIS |
939 | PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix); |
940 | int oflags = PerlIOUnix_oflags(mode); | |
941 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) | |
942 | (*PerlIOBase(f)->tab->Close)(f); | |
943 | if (oflags != -1) | |
944 | { | |
00b02797 | 945 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b NIS |
946 | if (fd >= 0) |
947 | { | |
948 | s->fd = fd; | |
949 | s->oflags = oflags; | |
950 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
951 | return 0; | |
952 | } | |
953 | } | |
954 | return -1; | |
955 | } | |
956 | ||
957 | SSize_t | |
958 | PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count) | |
959 | { | |
960 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
8f24bd79 NIS |
961 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
962 | return 0; | |
9e353e3b NIS |
963 | while (1) |
964 | { | |
00b02797 | 965 | SSize_t len = PerlLIO_read(fd,vbuf,count); |
9e353e3b | 966 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
967 | { |
968 | if (len < 0) | |
969 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
970 | else if (len == 0 && count != 0) | |
971 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
972 | return len; | |
973 | } | |
9e353e3b NIS |
974 | } |
975 | } | |
976 | ||
977 | SSize_t | |
978 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) | |
979 | { | |
980 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
981 | while (1) | |
982 | { | |
00b02797 | 983 | SSize_t len = PerlLIO_write(fd,vbuf,count); |
9e353e3b | 984 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
985 | { |
986 | if (len < 0) | |
987 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
988 | return len; | |
989 | } | |
9e353e3b NIS |
990 | } |
991 | } | |
992 | ||
993 | IV | |
994 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) | |
995 | { | |
00b02797 | 996 | Off_t new = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence); |
06da4f11 | 997 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
9e353e3b NIS |
998 | return (new == (Off_t) -1) ? -1 : 0; |
999 | } | |
1000 | ||
1001 | Off_t | |
1002 | PerlIOUnix_tell(PerlIO *f) | |
1003 | { | |
00b02797 | 1004 | return PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
9e353e3b NIS |
1005 | } |
1006 | ||
1007 | IV | |
1008 | PerlIOUnix_close(PerlIO *f) | |
1009 | { | |
1010 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
1011 | int code = 0; | |
00b02797 | 1012 | while (PerlLIO_close(fd) != 0) |
9e353e3b NIS |
1013 | { |
1014 | if (errno != EINTR) | |
1015 | { | |
1016 | code = -1; | |
1017 | break; | |
1018 | } | |
1019 | } | |
1020 | if (code == 0) | |
1021 | { | |
1022 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; | |
1023 | } | |
1024 | return code; | |
1025 | } | |
1026 | ||
1027 | PerlIO_funcs PerlIO_unix = { | |
1028 | "unix", | |
1029 | sizeof(PerlIOUnix), | |
1030 | 0, | |
1031 | PerlIOUnix_fileno, | |
1032 | PerlIOUnix_fdopen, | |
1033 | PerlIOUnix_open, | |
1034 | PerlIOUnix_reopen, | |
06da4f11 NIS |
1035 | PerlIOBase_pushed, |
1036 | PerlIOBase_noop_ok, | |
9e353e3b NIS |
1037 | PerlIOUnix_read, |
1038 | PerlIOBase_unread, | |
1039 | PerlIOUnix_write, | |
1040 | PerlIOUnix_seek, | |
1041 | PerlIOUnix_tell, | |
1042 | PerlIOUnix_close, | |
76ced9ad NIS |
1043 | PerlIOBase_noop_ok, /* flush */ |
1044 | PerlIOBase_noop_fail, /* fill */ | |
9e353e3b NIS |
1045 | PerlIOBase_eof, |
1046 | PerlIOBase_error, | |
1047 | PerlIOBase_clearerr, | |
1048 | PerlIOBase_setlinebuf, | |
1049 | NULL, /* get_base */ | |
1050 | NULL, /* get_bufsiz */ | |
1051 | NULL, /* get_ptr */ | |
1052 | NULL, /* get_cnt */ | |
1053 | NULL, /* set_ptrcnt */ | |
1054 | }; | |
1055 | ||
1056 | /*--------------------------------------------------------------------------------------*/ | |
1057 | /* stdio as a layer */ | |
1058 | ||
1059 | typedef struct | |
1060 | { | |
1061 | struct _PerlIO base; | |
1062 | FILE * stdio; /* The stream */ | |
1063 | } PerlIOStdio; | |
1064 | ||
1065 | IV | |
1066 | PerlIOStdio_fileno(PerlIO *f) | |
1067 | { | |
1068 | return fileno(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1069 | } | |
1070 | ||
1071 | ||
1072 | PerlIO * | |
06da4f11 | 1073 | PerlIOStdio_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b NIS |
1074 | { |
1075 | PerlIO *f = NULL; | |
c7fc522f NIS |
1076 | int init = 0; |
1077 | if (*mode == 'I') | |
1078 | { | |
1079 | init = 1; | |
1080 | mode++; | |
1081 | } | |
9e353e3b NIS |
1082 | if (fd >= 0) |
1083 | { | |
c7fc522f NIS |
1084 | FILE *stdio = NULL; |
1085 | if (init) | |
1086 | { | |
1087 | switch(fd) | |
1088 | { | |
1089 | case 0: | |
1090 | stdio = stdin; | |
1091 | break; | |
1092 | case 1: | |
1093 | stdio = stdout; | |
1094 | break; | |
1095 | case 2: | |
1096 | stdio = stderr; | |
1097 | break; | |
1098 | } | |
1099 | } | |
1100 | else | |
1101 | stdio = fdopen(fd,mode); | |
9e353e3b NIS |
1102 | if (stdio) |
1103 | { | |
06da4f11 | 1104 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOStdio); |
9e353e3b NIS |
1105 | s->stdio = stdio; |
1106 | } | |
1107 | } | |
1108 | return f; | |
1109 | } | |
1110 | ||
1111 | #undef PerlIO_importFILE | |
1112 | PerlIO * | |
1113 | PerlIO_importFILE(FILE *stdio, int fl) | |
1114 | { | |
1115 | PerlIO *f = NULL; | |
1116 | if (stdio) | |
1117 | { | |
1118 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,"r+"),PerlIOStdio); | |
1119 | s->stdio = stdio; | |
1120 | } | |
1121 | return f; | |
1122 | } | |
1123 | ||
1124 | PerlIO * | |
06da4f11 | 1125 | PerlIOStdio_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b NIS |
1126 | { |
1127 | PerlIO *f = NULL; | |
1128 | FILE *stdio = fopen(path,mode); | |
1129 | if (stdio) | |
1130 | { | |
06da4f11 | 1131 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOStdio); |
9e353e3b NIS |
1132 | s->stdio = stdio; |
1133 | } | |
1134 | return f; | |
760ac839 LW |
1135 | } |
1136 | ||
6f9d8c32 | 1137 | int |
9e353e3b NIS |
1138 | PerlIOStdio_reopen(const char *path, const char *mode, PerlIO *f) |
1139 | { | |
1140 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); | |
1141 | FILE *stdio = freopen(path,mode,s->stdio); | |
1142 | if (!s->stdio) | |
1143 | return -1; | |
1144 | s->stdio = stdio; | |
1145 | return 0; | |
1146 | } | |
1147 | ||
1148 | SSize_t | |
1149 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) | |
1150 | { | |
1151 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; | |
c7fc522f | 1152 | SSize_t got = 0; |
9e353e3b NIS |
1153 | if (count == 1) |
1154 | { | |
1155 | STDCHAR *buf = (STDCHAR *) vbuf; | |
1156 | /* Perl is expecting PerlIO_getc() to fill the buffer | |
1157 | * Linux's stdio does not do that for fread() | |
1158 | */ | |
1159 | int ch = fgetc(s); | |
1160 | if (ch != EOF) | |
1161 | { | |
1162 | *buf = ch; | |
c7fc522f | 1163 | got = 1; |
9e353e3b | 1164 | } |
9e353e3b | 1165 | } |
c7fc522f NIS |
1166 | else |
1167 | got = fread(vbuf,1,count,s); | |
1168 | return got; | |
9e353e3b NIS |
1169 | } |
1170 | ||
1171 | SSize_t | |
1172 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1173 | { | |
1174 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1175 | STDCHAR *buf = ((STDCHAR *)vbuf)+count-1; | |
1176 | SSize_t unread = 0; | |
1177 | while (count > 0) | |
1178 | { | |
1179 | int ch = *buf-- & 0xff; | |
1180 | if (ungetc(ch,s) != ch) | |
1181 | break; | |
1182 | unread++; | |
1183 | count--; | |
1184 | } | |
1185 | return unread; | |
1186 | } | |
1187 | ||
1188 | SSize_t | |
1189 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) | |
1190 | { | |
1191 | return fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio); | |
1192 | } | |
1193 | ||
1194 | IV | |
1195 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) | |
1196 | { | |
c7fc522f NIS |
1197 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1198 | return fseek(stdio,offset,whence); | |
9e353e3b NIS |
1199 | } |
1200 | ||
1201 | Off_t | |
1202 | PerlIOStdio_tell(PerlIO *f) | |
1203 | { | |
c7fc522f NIS |
1204 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1205 | return ftell(stdio); | |
9e353e3b NIS |
1206 | } |
1207 | ||
1208 | IV | |
1209 | PerlIOStdio_close(PerlIO *f) | |
1210 | { | |
1211 | return fclose(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1212 | } | |
1213 | ||
1214 | IV | |
1215 | PerlIOStdio_flush(PerlIO *f) | |
1216 | { | |
1217 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1218 | return fflush(stdio); | |
1219 | } | |
1220 | ||
1221 | IV | |
06da4f11 NIS |
1222 | PerlIOStdio_fill(PerlIO *f) |
1223 | { | |
1224 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1225 | int c; | |
1226 | if (fflush(stdio) != 0) | |
1227 | return EOF; | |
1228 | c = fgetc(stdio); | |
1229 | if (c == EOF || ungetc(c,stdio) != c) | |
1230 | return EOF; | |
1231 | return 0; | |
1232 | } | |
1233 | ||
1234 | IV | |
9e353e3b NIS |
1235 | PerlIOStdio_eof(PerlIO *f) |
1236 | { | |
1237 | return feof(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1238 | } | |
1239 | ||
1240 | IV | |
1241 | PerlIOStdio_error(PerlIO *f) | |
1242 | { | |
1243 | return ferror(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1244 | } | |
1245 | ||
1246 | void | |
1247 | PerlIOStdio_clearerr(PerlIO *f) | |
1248 | { | |
1249 | clearerr(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1250 | } | |
1251 | ||
1252 | void | |
1253 | PerlIOStdio_setlinebuf(PerlIO *f) | |
1254 | { | |
1255 | #ifdef HAS_SETLINEBUF | |
1256 | setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1257 | #else | |
1258 | setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0); | |
1259 | #endif | |
1260 | } | |
1261 | ||
1262 | #ifdef FILE_base | |
1263 | STDCHAR * | |
1264 | PerlIOStdio_get_base(PerlIO *f) | |
1265 | { | |
1266 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1267 | return FILE_base(stdio); | |
1268 | } | |
1269 | ||
1270 | Size_t | |
1271 | PerlIOStdio_get_bufsiz(PerlIO *f) | |
1272 | { | |
1273 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1274 | return FILE_bufsiz(stdio); | |
1275 | } | |
1276 | #endif | |
1277 | ||
1278 | #ifdef USE_STDIO_PTR | |
1279 | STDCHAR * | |
1280 | PerlIOStdio_get_ptr(PerlIO *f) | |
1281 | { | |
1282 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1283 | return FILE_ptr(stdio); | |
1284 | } | |
1285 | ||
1286 | SSize_t | |
1287 | PerlIOStdio_get_cnt(PerlIO *f) | |
1288 | { | |
1289 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1290 | return FILE_cnt(stdio); | |
1291 | } | |
1292 | ||
1293 | void | |
1294 | PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt) | |
1295 | { | |
1296 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1297 | if (ptr != NULL) | |
1298 | { | |
1299 | #ifdef STDIO_PTR_LVALUE | |
1300 | FILE_ptr(stdio) = ptr; | |
1301 | #ifdef STDIO_PTR_LVAL_SETS_CNT | |
1302 | if (FILE_cnt(stdio) != (cnt)) | |
1303 | { | |
1304 | dTHX; | |
1305 | assert(FILE_cnt(stdio) == (cnt)); | |
1306 | } | |
1307 | #endif | |
1308 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) | |
1309 | /* Setting ptr _does_ change cnt - we are done */ | |
1310 | return; | |
1311 | #endif | |
1312 | #else /* STDIO_PTR_LVALUE */ | |
1313 | abort(); | |
1314 | #endif /* STDIO_PTR_LVALUE */ | |
1315 | } | |
1316 | /* Now (or only) set cnt */ | |
1317 | #ifdef STDIO_CNT_LVALUE | |
1318 | FILE_cnt(stdio) = cnt; | |
1319 | #else /* STDIO_CNT_LVALUE */ | |
1320 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) | |
1321 | FILE_ptr(stdio) = FILE_ptr(stdio)+(FILE_cnt(stdio)-cnt); | |
1322 | #else /* STDIO_PTR_LVAL_SETS_CNT */ | |
1323 | abort(); | |
1324 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ | |
1325 | #endif /* STDIO_CNT_LVALUE */ | |
1326 | } | |
1327 | ||
1328 | #endif | |
1329 | ||
1330 | PerlIO_funcs PerlIO_stdio = { | |
1331 | "stdio", | |
1332 | sizeof(PerlIOStdio), | |
1333 | 0, | |
1334 | PerlIOStdio_fileno, | |
1335 | PerlIOStdio_fdopen, | |
1336 | PerlIOStdio_open, | |
1337 | PerlIOStdio_reopen, | |
06da4f11 NIS |
1338 | PerlIOBase_pushed, |
1339 | PerlIOBase_noop_ok, | |
9e353e3b NIS |
1340 | PerlIOStdio_read, |
1341 | PerlIOStdio_unread, | |
1342 | PerlIOStdio_write, | |
1343 | PerlIOStdio_seek, | |
1344 | PerlIOStdio_tell, | |
1345 | PerlIOStdio_close, | |
1346 | PerlIOStdio_flush, | |
06da4f11 | 1347 | PerlIOStdio_fill, |
9e353e3b NIS |
1348 | PerlIOStdio_eof, |
1349 | PerlIOStdio_error, | |
1350 | PerlIOStdio_clearerr, | |
1351 | PerlIOStdio_setlinebuf, | |
1352 | #ifdef FILE_base | |
1353 | PerlIOStdio_get_base, | |
1354 | PerlIOStdio_get_bufsiz, | |
1355 | #else | |
1356 | NULL, | |
1357 | NULL, | |
1358 | #endif | |
1359 | #ifdef USE_STDIO_PTR | |
1360 | PerlIOStdio_get_ptr, | |
1361 | PerlIOStdio_get_cnt, | |
0eb1d8a4 | 1362 | #if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) |
9e353e3b NIS |
1363 | PerlIOStdio_set_ptrcnt |
1364 | #else /* STDIO_PTR_LVALUE */ | |
1365 | NULL | |
1366 | #endif /* STDIO_PTR_LVALUE */ | |
1367 | #else /* USE_STDIO_PTR */ | |
1368 | NULL, | |
1369 | NULL, | |
1370 | NULL | |
1371 | #endif /* USE_STDIO_PTR */ | |
1372 | }; | |
1373 | ||
1374 | #undef PerlIO_exportFILE | |
1375 | FILE * | |
1376 | PerlIO_exportFILE(PerlIO *f, int fl) | |
1377 | { | |
1378 | PerlIO_flush(f); | |
1379 | /* Should really push stdio discipline when we have them */ | |
1380 | return fdopen(PerlIO_fileno(f),"r+"); | |
1381 | } | |
1382 | ||
1383 | #undef PerlIO_findFILE | |
1384 | FILE * | |
1385 | PerlIO_findFILE(PerlIO *f) | |
1386 | { | |
1387 | return PerlIO_exportFILE(f,0); | |
1388 | } | |
1389 | ||
1390 | #undef PerlIO_releaseFILE | |
1391 | void | |
1392 | PerlIO_releaseFILE(PerlIO *p, FILE *f) | |
1393 | { | |
1394 | } | |
1395 | ||
1396 | /*--------------------------------------------------------------------------------------*/ | |
1397 | /* perlio buffer layer */ | |
1398 | ||
9e353e3b | 1399 | PerlIO * |
06da4f11 | 1400 | PerlIOBuf_fdopen(PerlIO_funcs *self, int fd, const char *mode) |
9e353e3b NIS |
1401 | { |
1402 | PerlIO_funcs *tab = PerlIO_default_btm(); | |
c7fc522f NIS |
1403 | int init = 0; |
1404 | PerlIO *f; | |
1405 | if (*mode == 'I') | |
1406 | { | |
1407 | init = 1; | |
1408 | mode++; | |
1409 | } | |
06da4f11 | 1410 | f = (*tab->Fdopen)(tab,fd,mode); |
6f9d8c32 NIS |
1411 | if (f) |
1412 | { | |
c7fc522f NIS |
1413 | /* Initial stderr is unbuffered */ |
1414 | if (!init || fd != 2) | |
1415 | { | |
06da4f11 | 1416 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,NULL),PerlIOBuf); |
c7fc522f NIS |
1417 | b->posn = PerlIO_tell(PerlIONext(f)); |
1418 | } | |
6f9d8c32 | 1419 | } |
9e353e3b | 1420 | return f; |
760ac839 LW |
1421 | } |
1422 | ||
9e353e3b | 1423 | PerlIO * |
06da4f11 | 1424 | PerlIOBuf_open(PerlIO_funcs *self, const char *path, const char *mode) |
8c86a920 | 1425 | { |
9e353e3b | 1426 | PerlIO_funcs *tab = PerlIO_default_btm(); |
06da4f11 | 1427 | PerlIO *f = (*tab->Open)(tab,path,mode); |
9e353e3b NIS |
1428 | if (f) |
1429 | { | |
06da4f11 | 1430 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,NULL),PerlIOBuf); |
c3d7c7c9 | 1431 | b->posn = PerlIO_tell(PerlIONext(f)); |
9e353e3b NIS |
1432 | } |
1433 | return f; | |
1434 | } | |
1435 | ||
1436 | int | |
c3d7c7c9 | 1437 | PerlIOBuf_reopen(const char *path, const char *mode, PerlIO *f) |
9e353e3b | 1438 | { |
c3d7c7c9 NIS |
1439 | PerlIO *next = PerlIONext(f); |
1440 | int code = (*PerlIOBase(next)->tab->Reopen)(path,mode,next); | |
1441 | if (code = 0) | |
1442 | code = (*PerlIOBase(f)->tab->Pushed)(f,mode); | |
1443 | if (code == 0) | |
1444 | { | |
1445 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1446 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1447 | } | |
1448 | return code; | |
9e353e3b NIS |
1449 | } |
1450 | ||
9e353e3b NIS |
1451 | /* This "flush" is akin to sfio's sync in that it handles files in either |
1452 | read or write state | |
1453 | */ | |
1454 | IV | |
1455 | PerlIOBuf_flush(PerlIO *f) | |
6f9d8c32 | 1456 | { |
9e353e3b NIS |
1457 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1458 | int code = 0; | |
1459 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
1460 | { | |
1461 | /* write() the buffer */ | |
1462 | STDCHAR *p = b->buf; | |
1463 | int count; | |
1464 | while (p < b->ptr) | |
1465 | { | |
1466 | count = PerlIO_write(PerlIONext(f),p,b->ptr - p); | |
1467 | if (count > 0) | |
1468 | { | |
1469 | p += count; | |
1470 | } | |
1471 | else if (count < 0) | |
1472 | { | |
1473 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1474 | code = -1; | |
1475 | break; | |
1476 | } | |
1477 | } | |
1478 | b->posn += (p - b->buf); | |
1479 | } | |
1480 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
6f9d8c32 | 1481 | { |
9e353e3b NIS |
1482 | /* Note position change */ |
1483 | b->posn += (b->ptr - b->buf); | |
1484 | if (b->ptr < b->end) | |
1485 | { | |
1486 | /* We did not consume all of it */ | |
1487 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) | |
1488 | { | |
1489 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1490 | } | |
1491 | } | |
6f9d8c32 | 1492 | } |
9e353e3b NIS |
1493 | b->ptr = b->end = b->buf; |
1494 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1495 | if (PerlIO_flush(PerlIONext(f)) != 0) | |
1496 | code = -1; | |
1497 | return code; | |
6f9d8c32 NIS |
1498 | } |
1499 | ||
06da4f11 NIS |
1500 | IV |
1501 | PerlIOBuf_fill(PerlIO *f) | |
1502 | { | |
1503 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1504 | SSize_t avail; | |
1505 | if (PerlIO_flush(f) != 0) | |
1506 | return -1; | |
1507 | b->ptr = b->end = b->buf; | |
1508 | avail = PerlIO_read(PerlIONext(f),b->ptr,b->bufsiz); | |
1509 | if (avail <= 0) | |
1510 | { | |
1511 | if (avail == 0) | |
1512 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
1513 | else | |
1514 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1515 | return -1; | |
1516 | } | |
1517 | b->end = b->buf+avail; | |
1518 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
1519 | return 0; | |
1520 | } | |
1521 | ||
6f9d8c32 | 1522 | SSize_t |
9e353e3b | 1523 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 | 1524 | { |
9e353e3b | 1525 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
6f9d8c32 NIS |
1526 | STDCHAR *buf = (STDCHAR *) vbuf; |
1527 | if (f) | |
1528 | { | |
1529 | Size_t got = 0; | |
9e353e3b | 1530 | if (!b->ptr) |
06da4f11 | 1531 | PerlIO_get_base(f); |
9e353e3b | 1532 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
f89522bf | 1533 | return 0; |
6f9d8c32 NIS |
1534 | while (count > 0) |
1535 | { | |
9e353e3b | 1536 | SSize_t avail = (b->end - b->ptr); |
6f9d8c32 NIS |
1537 | if ((SSize_t) count < avail) |
1538 | avail = count; | |
1539 | if (avail > 0) | |
1540 | { | |
9e353e3b | 1541 | Copy(b->ptr,buf,avail,char); |
6f9d8c32 | 1542 | got += avail; |
9e353e3b | 1543 | b->ptr += avail; |
6f9d8c32 NIS |
1544 | count -= avail; |
1545 | buf += avail; | |
1546 | } | |
9e353e3b | 1547 | if (count && (b->ptr >= b->end)) |
6f9d8c32 | 1548 | { |
06da4f11 NIS |
1549 | if (PerlIO_fill(f) != 0) |
1550 | break; | |
6f9d8c32 NIS |
1551 | } |
1552 | } | |
1553 | return got; | |
1554 | } | |
1555 | return 0; | |
1556 | } | |
1557 | ||
9e353e3b NIS |
1558 | SSize_t |
1559 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1560 | { |
9e353e3b NIS |
1561 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
1562 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1563 | SSize_t unread = 0; | |
1564 | SSize_t avail; | |
9e353e3b NIS |
1565 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
1566 | PerlIO_flush(f); | |
06da4f11 NIS |
1567 | if (!b->buf) |
1568 | PerlIO_get_base(f); | |
9e353e3b NIS |
1569 | if (b->buf) |
1570 | { | |
1571 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
1572 | { | |
1573 | avail = (b->ptr - b->buf); | |
1574 | if (avail > (SSize_t) count) | |
1575 | avail = count; | |
1576 | b->ptr -= avail; | |
1577 | } | |
1578 | else | |
1579 | { | |
1580 | avail = b->bufsiz; | |
1581 | if (avail > (SSize_t) count) | |
1582 | avail = count; | |
1583 | b->end = b->ptr + avail; | |
1584 | } | |
1585 | if (avail > 0) | |
1586 | { | |
1587 | buf -= avail; | |
1588 | if (buf != b->ptr) | |
1589 | { | |
1590 | Copy(buf,b->ptr,avail,char); | |
1591 | } | |
1592 | count -= avail; | |
1593 | unread += avail; | |
1594 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
1595 | } | |
1596 | } | |
1597 | return unread; | |
760ac839 LW |
1598 | } |
1599 | ||
9e353e3b NIS |
1600 | SSize_t |
1601 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1602 | { |
9e353e3b NIS |
1603 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1604 | const STDCHAR *buf = (const STDCHAR *) vbuf; | |
1605 | Size_t written = 0; | |
1606 | if (!b->buf) | |
06da4f11 | 1607 | PerlIO_get_base(f); |
9e353e3b NIS |
1608 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
1609 | return 0; | |
1610 | while (count > 0) | |
1611 | { | |
1612 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); | |
1613 | if ((SSize_t) count < avail) | |
1614 | avail = count; | |
1615 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
1616 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
1617 | { | |
1618 | while (avail > 0) | |
1619 | { | |
1620 | int ch = *buf++; | |
1621 | *(b->ptr)++ = ch; | |
1622 | count--; | |
1623 | avail--; | |
1624 | written++; | |
1625 | if (ch == '\n') | |
1626 | { | |
1627 | PerlIO_flush(f); | |
1628 | break; | |
1629 | } | |
1630 | } | |
1631 | } | |
1632 | else | |
1633 | { | |
1634 | if (avail) | |
1635 | { | |
1636 | Copy(buf,b->ptr,avail,char); | |
1637 | count -= avail; | |
1638 | buf += avail; | |
1639 | written += avail; | |
1640 | b->ptr += avail; | |
1641 | } | |
1642 | } | |
1643 | if (b->ptr >= (b->buf + b->bufsiz)) | |
1644 | PerlIO_flush(f); | |
1645 | } | |
1646 | return written; | |
1647 | } | |
1648 | ||
1649 | IV | |
1650 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) | |
1651 | { | |
1652 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
06da4f11 | 1653 | int code = PerlIO_flush(f); |
9e353e3b NIS |
1654 | if (code == 0) |
1655 | { | |
1656 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; | |
1657 | code = PerlIO_seek(PerlIONext(f),offset,whence); | |
1658 | if (code == 0) | |
1659 | { | |
1660 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1661 | } | |
1662 | } | |
1663 | return code; | |
1664 | } | |
1665 | ||
1666 | Off_t | |
1667 | PerlIOBuf_tell(PerlIO *f) | |
1668 | { | |
1669 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1670 | Off_t posn = b->posn; | |
1671 | if (b->buf) | |
1672 | posn += (b->ptr - b->buf); | |
1673 | return posn; | |
1674 | } | |
1675 | ||
1676 | IV | |
1677 | PerlIOBuf_close(PerlIO *f) | |
1678 | { | |
1679 | IV code = PerlIOBase_close(f); | |
1680 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1681 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
6f9d8c32 | 1682 | { |
9e353e3b | 1683 | Safefree(b->buf); |
6f9d8c32 | 1684 | } |
9e353e3b NIS |
1685 | b->buf = NULL; |
1686 | b->ptr = b->end = b->buf; | |
1687 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1688 | return code; | |
760ac839 LW |
1689 | } |
1690 | ||
760ac839 | 1691 | void |
9e353e3b | 1692 | PerlIOBuf_setlinebuf(PerlIO *f) |
760ac839 | 1693 | { |
6f9d8c32 NIS |
1694 | if (f) |
1695 | { | |
9e353e3b | 1696 | PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF; |
6f9d8c32 | 1697 | } |
760ac839 LW |
1698 | } |
1699 | ||
9e353e3b NIS |
1700 | STDCHAR * |
1701 | PerlIOBuf_get_ptr(PerlIO *f) | |
1702 | { | |
1703 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1704 | if (!b->buf) | |
06da4f11 | 1705 | PerlIO_get_base(f); |
9e353e3b NIS |
1706 | return b->ptr; |
1707 | } | |
1708 | ||
05d1247b | 1709 | SSize_t |
9e353e3b NIS |
1710 | PerlIOBuf_get_cnt(PerlIO *f) |
1711 | { | |
1712 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1713 | if (!b->buf) | |
06da4f11 | 1714 | PerlIO_get_base(f); |
9e353e3b NIS |
1715 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
1716 | return (b->end - b->ptr); | |
1717 | return 0; | |
1718 | } | |
1719 | ||
1720 | STDCHAR * | |
1721 | PerlIOBuf_get_base(PerlIO *f) | |
1722 | { | |
1723 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1724 | if (!b->buf) | |
06da4f11 NIS |
1725 | { |
1726 | if (!b->bufsiz) | |
1727 | b->bufsiz = 4096; | |
1728 | New('B',b->buf,b->bufsiz,STDCHAR); | |
1729 | if (!b->buf) | |
1730 | { | |
1731 | b->buf = (STDCHAR *)&b->oneword; | |
1732 | b->bufsiz = sizeof(b->oneword); | |
1733 | } | |
1734 | b->ptr = b->buf; | |
1735 | b->end = b->ptr; | |
1736 | } | |
9e353e3b NIS |
1737 | return b->buf; |
1738 | } | |
1739 | ||
1740 | Size_t | |
1741 | PerlIOBuf_bufsiz(PerlIO *f) | |
1742 | { | |
1743 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1744 | if (!b->buf) | |
06da4f11 | 1745 | PerlIO_get_base(f); |
9e353e3b NIS |
1746 | return (b->end - b->buf); |
1747 | } | |
1748 | ||
1749 | void | |
05d1247b | 1750 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
9e353e3b NIS |
1751 | { |
1752 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1753 | if (!b->buf) | |
06da4f11 | 1754 | PerlIO_get_base(f); |
9e353e3b NIS |
1755 | b->ptr = ptr; |
1756 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) | |
6f9d8c32 | 1757 | { |
9e353e3b NIS |
1758 | dTHX; |
1759 | assert(PerlIO_get_cnt(f) == cnt); | |
1760 | assert(b->ptr >= b->buf); | |
6f9d8c32 | 1761 | } |
9e353e3b | 1762 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 LW |
1763 | } |
1764 | ||
9e353e3b NIS |
1765 | PerlIO_funcs PerlIO_perlio = { |
1766 | "perlio", | |
1767 | sizeof(PerlIOBuf), | |
1768 | 0, | |
1769 | PerlIOBase_fileno, | |
1770 | PerlIOBuf_fdopen, | |
1771 | PerlIOBuf_open, | |
c3d7c7c9 | 1772 | PerlIOBuf_reopen, |
06da4f11 NIS |
1773 | PerlIOBase_pushed, |
1774 | PerlIOBase_noop_ok, | |
9e353e3b NIS |
1775 | PerlIOBuf_read, |
1776 | PerlIOBuf_unread, | |
1777 | PerlIOBuf_write, | |
1778 | PerlIOBuf_seek, | |
1779 | PerlIOBuf_tell, | |
1780 | PerlIOBuf_close, | |
1781 | PerlIOBuf_flush, | |
06da4f11 | 1782 | PerlIOBuf_fill, |
9e353e3b NIS |
1783 | PerlIOBase_eof, |
1784 | PerlIOBase_error, | |
1785 | PerlIOBase_clearerr, | |
1786 | PerlIOBuf_setlinebuf, | |
1787 | PerlIOBuf_get_base, | |
1788 | PerlIOBuf_bufsiz, | |
1789 | PerlIOBuf_get_ptr, | |
1790 | PerlIOBuf_get_cnt, | |
1791 | PerlIOBuf_set_ptrcnt, | |
1792 | }; | |
1793 | ||
06da4f11 NIS |
1794 | #ifdef HAS_MMAP |
1795 | /*--------------------------------------------------------------------------------------*/ | |
1796 | /* mmap as "buffer" layer */ | |
1797 | ||
1798 | typedef struct | |
1799 | { | |
1800 | PerlIOBuf base; /* PerlIOBuf stuff */ | |
c3d7c7c9 | 1801 | Mmap_t mptr; /* Mapped address */ |
06da4f11 NIS |
1802 | Size_t len; /* mapped length */ |
1803 | STDCHAR *bbuf; /* malloced buffer if map fails */ | |
c3d7c7c9 | 1804 | |
06da4f11 NIS |
1805 | } PerlIOMmap; |
1806 | ||
c3d7c7c9 NIS |
1807 | static size_t page_size = 0; |
1808 | ||
06da4f11 NIS |
1809 | IV |
1810 | PerlIOMmap_map(PerlIO *f) | |
1811 | { | |
68d873c6 | 1812 | dTHX; |
06da4f11 NIS |
1813 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
1814 | PerlIOBuf *b = &m->base; | |
1815 | IV flags = PerlIOBase(f)->flags; | |
1816 | IV code = 0; | |
1817 | if (m->len) | |
1818 | abort(); | |
1819 | if (flags & PERLIO_F_CANREAD) | |
1820 | { | |
1821 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1822 | int fd = PerlIO_fileno(f); | |
1823 | struct stat st; | |
1824 | code = fstat(fd,&st); | |
1825 | if (code == 0 && S_ISREG(st.st_mode)) | |
1826 | { | |
1827 | SSize_t len = st.st_size - b->posn; | |
1828 | if (len > 0) | |
1829 | { | |
c3d7c7c9 | 1830 | Off_t posn; |
68d873c6 JH |
1831 | if (!page_size) { |
1832 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_PAGE_SIZE)) | |
1833 | { | |
1834 | SETERRNO(0,SS$_NORMAL); | |
1835 | # ifdef _SC_PAGESIZE | |
1836 | page_size = sysconf(_SC_PAGESIZE); | |
1837 | # else | |
1838 | page_size = sysconf(_SC_PAGE_SIZE); | |
14aaf8e8 | 1839 | # endif |
68d873c6 JH |
1840 | if ((long)page_size < 0) { |
1841 | if (errno) { | |
1842 | SV *error = ERRSV; | |
1843 | char *msg; | |
1844 | STRLEN n_a; | |
1845 | (void)SvUPGRADE(error, SVt_PV); | |
1846 | msg = SvPVx(error, n_a); | |
14aaf8e8 | 1847 | Perl_croak(aTHX_ "panic: sysconf: %s", msg); |
68d873c6 JH |
1848 | } |
1849 | else | |
14aaf8e8 | 1850 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); |
68d873c6 JH |
1851 | } |
1852 | } | |
1853 | #else | |
1854 | # ifdef HAS_GETPAGESIZE | |
c3d7c7c9 | 1855 | page_size = getpagesize(); |
68d873c6 JH |
1856 | # else |
1857 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
1858 | page_size = PAGESIZE; /* compiletime, bad */ | |
1859 | # endif | |
1860 | # endif | |
1861 | #endif | |
1862 | if ((IV)page_size <= 0) | |
14aaf8e8 | 1863 | Perl_croak(aTHX_ "panic: bad pagesize %"IVdf, (IV)page_size); |
68d873c6 | 1864 | } |
c3d7c7c9 NIS |
1865 | if (b->posn < 0) |
1866 | { | |
1867 | /* This is a hack - should never happen - open should have set it ! */ | |
1868 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1869 | } | |
1870 | posn = (b->posn / page_size) * page_size; | |
1871 | len = st.st_size - posn; | |
1872 | m->mptr = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, posn); | |
1873 | if (m->mptr && m->mptr != (Mmap_t) -1) | |
06da4f11 NIS |
1874 | { |
1875 | #if defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL) | |
c3d7c7c9 | 1876 | madvise(m->mptr, len, MADV_SEQUENTIAL); |
06da4f11 | 1877 | #endif |
c3d7c7c9 NIS |
1878 | PerlIOBase(f)->flags = (flags & ~PERLIO_F_EOF) | PERLIO_F_RDBUF; |
1879 | b->end = ((STDCHAR *)m->mptr) + len; | |
1880 | b->buf = ((STDCHAR *)m->mptr) + (b->posn - posn); | |
1881 | b->ptr = b->buf; | |
1882 | m->len = len; | |
06da4f11 NIS |
1883 | } |
1884 | else | |
1885 | { | |
1886 | b->buf = NULL; | |
1887 | } | |
1888 | } | |
1889 | else | |
1890 | { | |
1891 | PerlIOBase(f)->flags = flags | PERLIO_F_EOF | PERLIO_F_RDBUF; | |
1892 | b->buf = NULL; | |
1893 | b->ptr = b->end = b->ptr; | |
1894 | code = -1; | |
1895 | } | |
1896 | } | |
1897 | } | |
1898 | return code; | |
1899 | } | |
1900 | ||
1901 | IV | |
1902 | PerlIOMmap_unmap(PerlIO *f) | |
1903 | { | |
1904 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1905 | PerlIOBuf *b = &m->base; | |
1906 | IV code = 0; | |
1907 | if (m->len) | |
1908 | { | |
1909 | if (b->buf) | |
1910 | { | |
c3d7c7c9 NIS |
1911 | code = munmap(m->mptr, m->len); |
1912 | b->buf = NULL; | |
1913 | m->len = 0; | |
1914 | m->mptr = NULL; | |
06da4f11 NIS |
1915 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) != 0) |
1916 | code = -1; | |
06da4f11 NIS |
1917 | } |
1918 | b->ptr = b->end = b->buf; | |
1919 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1920 | } | |
1921 | return code; | |
1922 | } | |
1923 | ||
1924 | STDCHAR * | |
1925 | PerlIOMmap_get_base(PerlIO *f) | |
1926 | { | |
1927 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1928 | PerlIOBuf *b = &m->base; | |
1929 | if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
1930 | { | |
1931 | /* Already have a readbuffer in progress */ | |
1932 | return b->buf; | |
1933 | } | |
1934 | if (b->buf) | |
1935 | { | |
1936 | /* We have a write buffer or flushed PerlIOBuf read buffer */ | |
1937 | m->bbuf = b->buf; /* save it in case we need it again */ | |
1938 | b->buf = NULL; /* Clear to trigger below */ | |
1939 | } | |
1940 | if (!b->buf) | |
1941 | { | |
1942 | PerlIOMmap_map(f); /* Try and map it */ | |
1943 | if (!b->buf) | |
1944 | { | |
1945 | /* Map did not work - recover PerlIOBuf buffer if we have one */ | |
1946 | b->buf = m->bbuf; | |
1947 | } | |
1948 | } | |
1949 | b->ptr = b->end = b->buf; | |
1950 | if (b->buf) | |
1951 | return b->buf; | |
1952 | return PerlIOBuf_get_base(f); | |
1953 | } | |
1954 | ||
1955 | SSize_t | |
1956 | PerlIOMmap_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1957 | { | |
1958 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1959 | PerlIOBuf *b = &m->base; | |
1960 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
1961 | PerlIO_flush(f); | |
1962 | if (b->ptr && (b->ptr - count) >= b->buf && memEQ(b->ptr - count,vbuf,count)) | |
1963 | { | |
1964 | b->ptr -= count; | |
1965 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
1966 | return count; | |
1967 | } | |
1968 | if (m->len) | |
1969 | { | |
4a4a6116 | 1970 | /* Loose the unwritable mapped buffer */ |
06da4f11 | 1971 | PerlIO_flush(f); |
c3d7c7c9 NIS |
1972 | /* If flush took the "buffer" see if we have one from before */ |
1973 | if (!b->buf && m->bbuf) | |
1974 | b->buf = m->bbuf; | |
1975 | if (!b->buf) | |
1976 | { | |
1977 | PerlIOBuf_get_base(f); | |
1978 | m->bbuf = b->buf; | |
1979 | } | |
06da4f11 NIS |
1980 | } |
1981 | return PerlIOBuf_unread(f,vbuf,count); | |
1982 | } | |
1983 | ||
1984 | SSize_t | |
1985 | PerlIOMmap_write(PerlIO *f, const void *vbuf, Size_t count) | |
1986 | { | |
1987 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1988 | PerlIOBuf *b = &m->base; | |
1989 | if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF)) | |
1990 | { | |
1991 | /* No, or wrong sort of, buffer */ | |
1992 | if (m->len) | |
1993 | { | |
1994 | if (PerlIOMmap_unmap(f) != 0) | |
1995 | return 0; | |
1996 | } | |
1997 | /* If unmap took the "buffer" see if we have one from before */ | |
1998 | if (!b->buf && m->bbuf) | |
1999 | b->buf = m->bbuf; | |
2000 | if (!b->buf) | |
2001 | { | |
2002 | PerlIOBuf_get_base(f); | |
2003 | m->bbuf = b->buf; | |
2004 | } | |
2005 | } | |
2006 | return PerlIOBuf_write(f,vbuf,count); | |
2007 | } | |
2008 | ||
2009 | IV | |
2010 | PerlIOMmap_flush(PerlIO *f) | |
2011 | { | |
2012 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
2013 | PerlIOBuf *b = &m->base; | |
2014 | IV code = PerlIOBuf_flush(f); | |
2015 | /* Now we are "synced" at PerlIOBuf level */ | |
2016 | if (b->buf) | |
2017 | { | |
2018 | if (m->len) | |
2019 | { | |
2020 | /* Unmap the buffer */ | |
2021 | if (PerlIOMmap_unmap(f) != 0) | |
2022 | code = -1; | |
2023 | } | |
2024 | else | |
2025 | { | |
2026 | /* We seem to have a PerlIOBuf buffer which was not mapped | |
2027 | * remember it in case we need one later | |
2028 | */ | |
2029 | m->bbuf = b->buf; | |
2030 | } | |
2031 | } | |
06da4f11 NIS |
2032 | return code; |
2033 | } | |
2034 | ||
2035 | IV | |
2036 | PerlIOMmap_fill(PerlIO *f) | |
2037 | { | |
2038 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2039 | IV code = PerlIO_flush(f); | |
06da4f11 NIS |
2040 | if (code == 0 && !b->buf) |
2041 | { | |
2042 | code = PerlIOMmap_map(f); | |
06da4f11 NIS |
2043 | } |
2044 | if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
2045 | { | |
2046 | code = PerlIOBuf_fill(f); | |
06da4f11 NIS |
2047 | } |
2048 | return code; | |
2049 | } | |
2050 | ||
2051 | IV | |
2052 | PerlIOMmap_close(PerlIO *f) | |
2053 | { | |
2054 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
2055 | PerlIOBuf *b = &m->base; | |
2056 | IV code = PerlIO_flush(f); | |
2057 | if (m->bbuf) | |
2058 | { | |
2059 | b->buf = m->bbuf; | |
2060 | m->bbuf = NULL; | |
2061 | b->ptr = b->end = b->buf; | |
2062 | } | |
2063 | if (PerlIOBuf_close(f) != 0) | |
2064 | code = -1; | |
06da4f11 NIS |
2065 | return code; |
2066 | } | |
2067 | ||
2068 | ||
2069 | PerlIO_funcs PerlIO_mmap = { | |
2070 | "mmap", | |
2071 | sizeof(PerlIOMmap), | |
2072 | 0, | |
2073 | PerlIOBase_fileno, | |
2074 | PerlIOBuf_fdopen, | |
2075 | PerlIOBuf_open, | |
c3d7c7c9 | 2076 | PerlIOBuf_reopen, |
06da4f11 NIS |
2077 | PerlIOBase_pushed, |
2078 | PerlIOBase_noop_ok, | |
2079 | PerlIOBuf_read, | |
2080 | PerlIOMmap_unread, | |
2081 | PerlIOMmap_write, | |
2082 | PerlIOBuf_seek, | |
2083 | PerlIOBuf_tell, | |
2084 | PerlIOBuf_close, | |
2085 | PerlIOMmap_flush, | |
2086 | PerlIOMmap_fill, | |
2087 | PerlIOBase_eof, | |
2088 | PerlIOBase_error, | |
2089 | PerlIOBase_clearerr, | |
2090 | PerlIOBuf_setlinebuf, | |
2091 | PerlIOMmap_get_base, | |
2092 | PerlIOBuf_bufsiz, | |
2093 | PerlIOBuf_get_ptr, | |
2094 | PerlIOBuf_get_cnt, | |
2095 | PerlIOBuf_set_ptrcnt, | |
2096 | }; | |
2097 | ||
2098 | #endif /* HAS_MMAP */ | |
2099 | ||
9e353e3b NIS |
2100 | void |
2101 | PerlIO_init(void) | |
760ac839 | 2102 | { |
9e353e3b | 2103 | if (!_perlio) |
6f9d8c32 | 2104 | { |
9e353e3b | 2105 | atexit(&PerlIO_cleanup); |
6f9d8c32 | 2106 | } |
760ac839 LW |
2107 | } |
2108 | ||
9e353e3b NIS |
2109 | #undef PerlIO_stdin |
2110 | PerlIO * | |
2111 | PerlIO_stdin(void) | |
2112 | { | |
2113 | if (!_perlio) | |
f3862f8b | 2114 | PerlIO_stdstreams(); |
05d1247b | 2115 | return &_perlio[1]; |
9e353e3b NIS |
2116 | } |
2117 | ||
2118 | #undef PerlIO_stdout | |
2119 | PerlIO * | |
2120 | PerlIO_stdout(void) | |
2121 | { | |
2122 | if (!_perlio) | |
f3862f8b | 2123 | PerlIO_stdstreams(); |
05d1247b | 2124 | return &_perlio[2]; |
9e353e3b NIS |
2125 | } |
2126 | ||
2127 | #undef PerlIO_stderr | |
2128 | PerlIO * | |
2129 | PerlIO_stderr(void) | |
2130 | { | |
2131 | if (!_perlio) | |
f3862f8b | 2132 | PerlIO_stdstreams(); |
05d1247b | 2133 | return &_perlio[3]; |
9e353e3b NIS |
2134 | } |
2135 | ||
2136 | /*--------------------------------------------------------------------------------------*/ | |
2137 | ||
2138 | #undef PerlIO_getname | |
2139 | char * | |
2140 | PerlIO_getname(PerlIO *f, char *buf) | |
2141 | { | |
2142 | dTHX; | |
2143 | Perl_croak(aTHX_ "Don't know how to get file name"); | |
2144 | return NULL; | |
2145 | } | |
2146 | ||
2147 | ||
2148 | /*--------------------------------------------------------------------------------------*/ | |
2149 | /* Functions which can be called on any kind of PerlIO implemented | |
2150 | in terms of above | |
2151 | */ | |
2152 | ||
2153 | #undef PerlIO_getc | |
6f9d8c32 | 2154 | int |
9e353e3b | 2155 | PerlIO_getc(PerlIO *f) |
760ac839 | 2156 | { |
313ca112 NIS |
2157 | STDCHAR buf[1]; |
2158 | SSize_t count = PerlIO_read(f,buf,1); | |
9e353e3b | 2159 | if (count == 1) |
313ca112 NIS |
2160 | { |
2161 | return (unsigned char) buf[0]; | |
2162 | } | |
2163 | return EOF; | |
2164 | } | |
2165 | ||
2166 | #undef PerlIO_ungetc | |
2167 | int | |
2168 | PerlIO_ungetc(PerlIO *f, int ch) | |
2169 | { | |
2170 | if (ch != EOF) | |
2171 | { | |
2172 | STDCHAR buf = ch; | |
2173 | if (PerlIO_unread(f,&buf,1) == 1) | |
2174 | return ch; | |
2175 | } | |
2176 | return EOF; | |
760ac839 LW |
2177 | } |
2178 | ||
9e353e3b NIS |
2179 | #undef PerlIO_putc |
2180 | int | |
2181 | PerlIO_putc(PerlIO *f, int ch) | |
760ac839 | 2182 | { |
9e353e3b NIS |
2183 | STDCHAR buf = ch; |
2184 | return PerlIO_write(f,&buf,1); | |
760ac839 LW |
2185 | } |
2186 | ||
9e353e3b | 2187 | #undef PerlIO_puts |
760ac839 | 2188 | int |
9e353e3b | 2189 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 | 2190 | { |
9e353e3b NIS |
2191 | STRLEN len = strlen(s); |
2192 | return PerlIO_write(f,s,len); | |
760ac839 LW |
2193 | } |
2194 | ||
2195 | #undef PerlIO_rewind | |
2196 | void | |
c78749f2 | 2197 | PerlIO_rewind(PerlIO *f) |
760ac839 | 2198 | { |
6f9d8c32 | 2199 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b | 2200 | PerlIO_clearerr(f); |
6f9d8c32 NIS |
2201 | } |
2202 | ||
2203 | #undef PerlIO_vprintf | |
2204 | int | |
2205 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) | |
2206 | { | |
2207 | dTHX; | |
bb9950b7 | 2208 | SV *sv = newSVpvn("",0); |
6f9d8c32 NIS |
2209 | char *s; |
2210 | STRLEN len; | |
2211 | sv_vcatpvf(sv, fmt, &ap); | |
2212 | s = SvPV(sv,len); | |
bb9950b7 | 2213 | return PerlIO_write(f,s,len); |
760ac839 LW |
2214 | } |
2215 | ||
2216 | #undef PerlIO_printf | |
6f9d8c32 | 2217 | int |
760ac839 | 2218 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 LW |
2219 | { |
2220 | va_list ap; | |
2221 | int result; | |
760ac839 | 2222 | va_start(ap,fmt); |
6f9d8c32 | 2223 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 LW |
2224 | va_end(ap); |
2225 | return result; | |
2226 | } | |
2227 | ||
2228 | #undef PerlIO_stdoutf | |
6f9d8c32 | 2229 | int |
760ac839 | 2230 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 LW |
2231 | { |
2232 | va_list ap; | |
2233 | int result; | |
760ac839 | 2234 | va_start(ap,fmt); |
760ac839 LW |
2235 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
2236 | va_end(ap); | |
2237 | return result; | |
2238 | } | |
2239 | ||
2240 | #undef PerlIO_tmpfile | |
2241 | PerlIO * | |
c78749f2 | 2242 | PerlIO_tmpfile(void) |
760ac839 | 2243 | { |
6f9d8c32 | 2244 | dTHX; |
b1ef6e3b | 2245 | /* I have no idea how portable mkstemp() is ... */ |
6f9d8c32 NIS |
2246 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
2247 | int fd = mkstemp(SvPVX(sv)); | |
2248 | PerlIO *f = NULL; | |
2249 | if (fd >= 0) | |
2250 | { | |
b1ef6e3b | 2251 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 NIS |
2252 | if (f) |
2253 | { | |
9e353e3b | 2254 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 | 2255 | } |
00b02797 | 2256 | PerlLIO_unlink(SvPVX(sv)); |
6f9d8c32 NIS |
2257 | SvREFCNT_dec(sv); |
2258 | } | |
2259 | return f; | |
760ac839 LW |
2260 | } |
2261 | ||
6f9d8c32 NIS |
2262 | #undef HAS_FSETPOS |
2263 | #undef HAS_FGETPOS | |
2264 | ||
760ac839 LW |
2265 | #endif /* USE_SFIO */ |
2266 | #endif /* PERLIO_IS_STDIO */ | |
2267 | ||
9e353e3b NIS |
2268 | /*======================================================================================*/ |
2269 | /* Now some functions in terms of above which may be needed even if | |
2270 | we are not in true PerlIO mode | |
2271 | */ | |
2272 | ||
760ac839 LW |
2273 | #ifndef HAS_FSETPOS |
2274 | #undef PerlIO_setpos | |
2275 | int | |
c78749f2 | 2276 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
760ac839 | 2277 | { |
6f9d8c32 | 2278 | return PerlIO_seek(f,*pos,0); |
760ac839 | 2279 | } |
c411622e | 2280 | #else |
2281 | #ifndef PERLIO_IS_STDIO | |
2282 | #undef PerlIO_setpos | |
2283 | int | |
c78749f2 | 2284 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
c411622e | 2285 | { |
2d4389e4 | 2286 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
2287 | return fsetpos64(f, pos); |
2288 | #else | |
c411622e | 2289 | return fsetpos(f, pos); |
d9b3e12d | 2290 | #endif |
c411622e | 2291 | } |
2292 | #endif | |
760ac839 LW |
2293 | #endif |
2294 | ||
2295 | #ifndef HAS_FGETPOS | |
2296 | #undef PerlIO_getpos | |
2297 | int | |
c78749f2 | 2298 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
760ac839 LW |
2299 | { |
2300 | *pos = PerlIO_tell(f); | |
a17c7222 | 2301 | return *pos == -1 ? -1 : 0; |
760ac839 | 2302 | } |
c411622e | 2303 | #else |
2304 | #ifndef PERLIO_IS_STDIO | |
2305 | #undef PerlIO_getpos | |
2306 | int | |
c78749f2 | 2307 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
c411622e | 2308 | { |
2d4389e4 | 2309 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
2310 | return fgetpos64(f, pos); |
2311 | #else | |
c411622e | 2312 | return fgetpos(f, pos); |
d9b3e12d | 2313 | #endif |
c411622e | 2314 | } |
2315 | #endif | |
760ac839 LW |
2316 | #endif |
2317 | ||
2318 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) | |
2319 | ||
2320 | int | |
c78749f2 | 2321 | vprintf(char *pat, char *args) |
662a7e3f CS |
2322 | { |
2323 | _doprnt(pat, args, stdout); | |
2324 | return 0; /* wrong, but perl doesn't use the return value */ | |
2325 | } | |
2326 | ||
2327 | int | |
c78749f2 | 2328 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 LW |
2329 | { |
2330 | _doprnt(pat, args, fd); | |
2331 | return 0; /* wrong, but perl doesn't use the return value */ | |
2332 | } | |
2333 | ||
2334 | #endif | |
2335 | ||
2336 | #ifndef PerlIO_vsprintf | |
6f9d8c32 | 2337 | int |
8ac85365 | 2338 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 LW |
2339 | { |
2340 | int val = vsprintf(s, fmt, ap); | |
2341 | if (n >= 0) | |
2342 | { | |
8c86a920 | 2343 | if (strlen(s) >= (STRLEN)n) |
760ac839 | 2344 | { |
bf49b057 | 2345 | dTHX; |
fb4a9925 JH |
2346 | (void)PerlIO_puts(Perl_error_log, |
2347 | "panic: sprintf overflow - memory corrupted!\n"); | |
bf49b057 | 2348 | my_exit(1); |
760ac839 LW |
2349 | } |
2350 | } | |
2351 | return val; | |
2352 | } | |
2353 | #endif | |
2354 | ||
2355 | #ifndef PerlIO_sprintf | |
6f9d8c32 | 2356 | int |
760ac839 | 2357 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 LW |
2358 | { |
2359 | va_list ap; | |
2360 | int result; | |
760ac839 | 2361 | va_start(ap,fmt); |
760ac839 LW |
2362 | result = PerlIO_vsprintf(s, n, fmt, ap); |
2363 | va_end(ap); | |
2364 | return result; | |
2365 | } | |
2366 | #endif | |
2367 | ||
c5be433b GS |
2368 | #endif /* !PERL_IMPLICIT_SYS */ |
2369 |