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 | ||
9e353e3b | 211 | /*--------------------------------------------------------------------------------------*/ |
b931b1d9 | 212 | /* XS Interface for perl code */ |
9e353e3b | 213 | |
b931b1d9 | 214 | XS(XS_perlio_import) |
f3862f8b NIS |
215 | { |
216 | dXSARGS; | |
217 | GV *gv = CvGV(cv); | |
218 | char *s = GvNAME(gv); | |
219 | STRLEN l = GvNAMELEN(gv); | |
220 | PerlIO_debug("%.*s\n",(int) l,s); | |
221 | XSRETURN_EMPTY; | |
222 | } | |
223 | ||
b931b1d9 | 224 | XS(XS_perlio_unimport) |
f3862f8b NIS |
225 | { |
226 | dXSARGS; | |
227 | GV *gv = CvGV(cv); | |
228 | char *s = GvNAME(gv); | |
229 | STRLEN l = GvNAMELEN(gv); | |
230 | PerlIO_debug("%.*s\n",(int) l,s); | |
231 | XSRETURN_EMPTY; | |
232 | } | |
233 | ||
f3862f8b NIS |
234 | SV * |
235 | PerlIO_find_layer(char *name, STRLEN len) | |
236 | { | |
237 | dTHX; | |
238 | SV **svp; | |
239 | SV *sv; | |
240 | if (len <= 0) | |
241 | len = strlen(name); | |
242 | svp = hv_fetch(PerlIO_layer_hv,name,len,0); | |
243 | if (svp && (sv = *svp) && SvROK(sv)) | |
244 | return *svp; | |
245 | return NULL; | |
246 | } | |
247 | ||
b13b2135 NIS |
248 | |
249 | static int | |
250 | perlio_mg_set(pTHX_ SV *sv, MAGIC *mg) | |
251 | { | |
252 | if (SvROK(sv)) | |
253 | { | |
b931b1d9 | 254 | IO *io = GvIOn((GV *)SvRV(sv)); |
b13b2135 NIS |
255 | PerlIO *ifp = IoIFP(io); |
256 | PerlIO *ofp = IoOFP(io); | |
257 | AV *av = (AV *) mg->mg_obj; | |
258 | Perl_warn(aTHX_ "set %_ %p %p %p",sv,io,ifp,ofp); | |
259 | } | |
260 | return 0; | |
261 | } | |
262 | ||
263 | static int | |
264 | perlio_mg_get(pTHX_ SV *sv, MAGIC *mg) | |
265 | { | |
266 | if (SvROK(sv)) | |
267 | { | |
b931b1d9 | 268 | IO *io = GvIOn((GV *)SvRV(sv)); |
b13b2135 NIS |
269 | PerlIO *ifp = IoIFP(io); |
270 | PerlIO *ofp = IoOFP(io); | |
271 | AV *av = (AV *) mg->mg_obj; | |
272 | Perl_warn(aTHX_ "get %_ %p %p %p",sv,io,ifp,ofp); | |
273 | } | |
274 | return 0; | |
275 | } | |
276 | ||
277 | static int | |
278 | perlio_mg_clear(pTHX_ SV *sv, MAGIC *mg) | |
279 | { | |
280 | Perl_warn(aTHX_ "clear %_",sv); | |
281 | return 0; | |
282 | } | |
283 | ||
284 | static int | |
285 | perlio_mg_free(pTHX_ SV *sv, MAGIC *mg) | |
286 | { | |
287 | Perl_warn(aTHX_ "free %_",sv); | |
288 | return 0; | |
289 | } | |
290 | ||
291 | MGVTBL perlio_vtab = { | |
292 | perlio_mg_get, | |
293 | perlio_mg_set, | |
294 | NULL, /* len */ | |
295 | NULL, | |
296 | perlio_mg_free | |
297 | }; | |
298 | ||
299 | XS(XS_io_MODIFY_SCALAR_ATTRIBUTES) | |
300 | { | |
301 | dXSARGS; | |
302 | SV *sv = SvRV(ST(1)); | |
303 | AV *av = newAV(); | |
304 | MAGIC *mg; | |
305 | int count = 0; | |
306 | int i; | |
307 | sv_magic(sv, (SV *)av, '~', NULL, 0); | |
308 | SvRMAGICAL_off(sv); | |
309 | mg = mg_find(sv,'~'); | |
310 | mg->mg_virtual = &perlio_vtab; | |
311 | mg_magical(sv); | |
312 | Perl_warn(aTHX_ "attrib %_",sv); | |
313 | for (i=2; i < items; i++) | |
314 | { | |
315 | STRLEN len; | |
316 | char *name = SvPV(ST(i),len); | |
317 | SV *layer = PerlIO_find_layer(name,len); | |
318 | if (layer) | |
319 | { | |
320 | av_push(av,SvREFCNT_inc(layer)); | |
321 | } | |
322 | else | |
323 | { | |
324 | ST(count) = ST(i); | |
325 | count++; | |
326 | } | |
327 | } | |
328 | SvREFCNT_dec(av); | |
329 | XSRETURN(count); | |
330 | } | |
331 | ||
f3862f8b NIS |
332 | void |
333 | PerlIO_define_layer(PerlIO_funcs *tab) | |
334 | { | |
335 | dTHX; | |
b931b1d9 | 336 | HV *stash = gv_stashpv("perlio::Layer", TRUE); |
e7778b43 | 337 | SV *sv = sv_bless(newRV_noinc(newSViv(PTR2IV(tab))),stash); |
f3862f8b NIS |
338 | hv_store(PerlIO_layer_hv,tab->name,strlen(tab->name),sv,0); |
339 | } | |
340 | ||
341 | PerlIO_funcs * | |
342 | PerlIO_default_layer(I32 n) | |
343 | { | |
344 | dTHX; | |
345 | SV **svp; | |
346 | SV *layer; | |
347 | PerlIO_funcs *tab = &PerlIO_stdio; | |
348 | int len; | |
349 | if (!PerlIO_layer_hv) | |
350 | { | |
00b02797 | 351 | char *s = PerlEnv_getenv("PERLIO"); |
b931b1d9 NIS |
352 | newXS("perlio::import",XS_perlio_import,__FILE__); |
353 | newXS("perlio::unimport",XS_perlio_unimport,__FILE__); | |
354 | #if 0 | |
b13b2135 | 355 | newXS("io::MODIFY_SCALAR_ATTRIBUTES",XS_io_MODIFY_SCALAR_ATTRIBUTES,__FILE__); |
b931b1d9 NIS |
356 | #endif |
357 | PerlIO_layer_hv = get_hv("open::layers",GV_ADD|GV_ADDMULTI); | |
358 | PerlIO_layer_av = get_av("open::layers",GV_ADD|GV_ADDMULTI); | |
f3862f8b | 359 | PerlIO_define_layer(&PerlIO_unix); |
f3862f8b NIS |
360 | PerlIO_define_layer(&PerlIO_perlio); |
361 | PerlIO_define_layer(&PerlIO_stdio); | |
06da4f11 NIS |
362 | #ifdef HAS_MMAP |
363 | PerlIO_define_layer(&PerlIO_mmap); | |
364 | #endif | |
f3862f8b NIS |
365 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_unix.name,0))); |
366 | if (s) | |
367 | { | |
368 | while (*s) | |
369 | { | |
00b02797 | 370 | while (*s && isSPACE((unsigned char)*s)) |
f3862f8b NIS |
371 | s++; |
372 | if (*s) | |
373 | { | |
374 | char *e = s; | |
375 | SV *layer; | |
00b02797 | 376 | while (*e && !isSPACE((unsigned char)*e)) |
f3862f8b NIS |
377 | e++; |
378 | layer = PerlIO_find_layer(s,e-s); | |
379 | if (layer) | |
380 | { | |
381 | PerlIO_debug("Pushing %.*s\n",(e-s),s); | |
382 | av_push(PerlIO_layer_av,SvREFCNT_inc(layer)); | |
383 | } | |
384 | else | |
ef0f9817 | 385 | Perl_warn(aTHX_ "perlio: unknown layer \"%.*s\"",(e-s),s); |
f3862f8b NIS |
386 | s = e; |
387 | } | |
388 | } | |
389 | } | |
390 | } | |
391 | len = av_len(PerlIO_layer_av); | |
392 | if (len < 1) | |
393 | { | |
394 | if (PerlIO_stdio.Set_ptrcnt) | |
395 | { | |
396 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_stdio.name,0))); | |
397 | } | |
398 | else | |
399 | { | |
400 | av_push(PerlIO_layer_av,SvREFCNT_inc(PerlIO_find_layer(PerlIO_perlio.name,0))); | |
401 | } | |
402 | len = av_len(PerlIO_layer_av); | |
403 | } | |
404 | if (n < 0) | |
405 | n += len+1; | |
406 | svp = av_fetch(PerlIO_layer_av,n,0); | |
407 | if (svp && (layer = *svp) && SvROK(layer) && SvIOK((layer = SvRV(layer)))) | |
408 | { | |
e7778b43 | 409 | tab = INT2PTR(PerlIO_funcs *, SvIV(layer)); |
f3862f8b NIS |
410 | } |
411 | /* PerlIO_debug("Layer %d is %s\n",n,tab->name); */ | |
412 | return tab; | |
413 | } | |
414 | ||
415 | #define PerlIO_default_top() PerlIO_default_layer(-1) | |
416 | #define PerlIO_default_btm() PerlIO_default_layer(0) | |
417 | ||
418 | void | |
419 | PerlIO_stdstreams() | |
420 | { | |
421 | if (!_perlio) | |
422 | { | |
423 | PerlIO_allocate(); | |
424 | PerlIO_fdopen(0,"Ir"); | |
425 | PerlIO_fdopen(1,"Iw"); | |
426 | PerlIO_fdopen(2,"Iw"); | |
427 | } | |
428 | } | |
9e353e3b | 429 | |
76ced9ad NIS |
430 | PerlIO * |
431 | PerlIO_push(PerlIO *f,PerlIO_funcs *tab,const char *mode) | |
432 | { | |
433 | PerlIOl *l = NULL; | |
434 | Newc('L',l,tab->size,char,PerlIOl); | |
435 | if (l) | |
436 | { | |
437 | Zero(l,tab->size,char); | |
438 | l->next = *f; | |
439 | l->tab = tab; | |
440 | *f = l; | |
441 | if ((*l->tab->Pushed)(f,mode) != 0) | |
442 | { | |
443 | PerlIO_pop(f); | |
444 | return NULL; | |
445 | } | |
446 | } | |
447 | return f; | |
448 | } | |
449 | ||
b931b1d9 NIS |
450 | /*--------------------------------------------------------------------------------------*/ |
451 | /* Given the abstraction above the public API functions */ | |
452 | ||
453 | #undef PerlIO_close | |
454 | int | |
455 | PerlIO_close(PerlIO *f) | |
456 | { | |
457 | int code = (*PerlIOBase(f)->tab->Close)(f); | |
458 | while (*f) | |
459 | { | |
460 | PerlIO_pop(f); | |
461 | } | |
462 | return code; | |
463 | } | |
464 | ||
465 | #undef PerlIO_fileno | |
466 | int | |
467 | PerlIO_fileno(PerlIO *f) | |
468 | { | |
469 | return (*PerlIOBase(f)->tab->Fileno)(f); | |
470 | } | |
471 | ||
472 | ||
473 | ||
9e353e3b NIS |
474 | #undef PerlIO_fdopen |
475 | PerlIO * | |
476 | PerlIO_fdopen(int fd, const char *mode) | |
477 | { | |
478 | PerlIO_funcs *tab = PerlIO_default_top(); | |
f3862f8b NIS |
479 | if (!_perlio) |
480 | PerlIO_stdstreams(); | |
06da4f11 | 481 | return (*tab->Fdopen)(tab,fd,mode); |
9e353e3b NIS |
482 | } |
483 | ||
6f9d8c32 NIS |
484 | #undef PerlIO_open |
485 | PerlIO * | |
486 | PerlIO_open(const char *path, const char *mode) | |
487 | { | |
9e353e3b | 488 | PerlIO_funcs *tab = PerlIO_default_top(); |
f3862f8b NIS |
489 | if (!_perlio) |
490 | PerlIO_stdstreams(); | |
06da4f11 | 491 | return (*tab->Open)(tab,path,mode); |
6f9d8c32 NIS |
492 | } |
493 | ||
9e353e3b NIS |
494 | #undef PerlIO_reopen |
495 | PerlIO * | |
496 | PerlIO_reopen(const char *path, const char *mode, PerlIO *f) | |
6f9d8c32 | 497 | { |
9e353e3b | 498 | if (f) |
6f9d8c32 | 499 | { |
9e353e3b NIS |
500 | PerlIO_flush(f); |
501 | if ((*PerlIOBase(f)->tab->Reopen)(path,mode,f) == 0) | |
502 | { | |
06da4f11 NIS |
503 | if ((*PerlIOBase(f)->tab->Pushed)(f,mode) == 0) |
504 | return f; | |
9e353e3b NIS |
505 | } |
506 | return NULL; | |
6f9d8c32 | 507 | } |
9e353e3b NIS |
508 | else |
509 | return PerlIO_open(path,mode); | |
760ac839 LW |
510 | } |
511 | ||
9e353e3b NIS |
512 | #undef PerlIO_read |
513 | SSize_t | |
514 | PerlIO_read(PerlIO *f, void *vbuf, Size_t count) | |
6f9d8c32 | 515 | { |
9e353e3b | 516 | return (*PerlIOBase(f)->tab->Read)(f,vbuf,count); |
760ac839 LW |
517 | } |
518 | ||
313ca112 NIS |
519 | #undef PerlIO_unread |
520 | SSize_t | |
521 | PerlIO_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 522 | { |
313ca112 | 523 | return (*PerlIOBase(f)->tab->Unread)(f,vbuf,count); |
760ac839 LW |
524 | } |
525 | ||
9e353e3b NIS |
526 | #undef PerlIO_write |
527 | SSize_t | |
528 | PerlIO_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 529 | { |
9e353e3b | 530 | return (*PerlIOBase(f)->tab->Write)(f,vbuf,count); |
760ac839 LW |
531 | } |
532 | ||
9e353e3b | 533 | #undef PerlIO_seek |
6f9d8c32 | 534 | int |
9e353e3b | 535 | PerlIO_seek(PerlIO *f, Off_t offset, int whence) |
760ac839 | 536 | { |
9e353e3b | 537 | return (*PerlIOBase(f)->tab->Seek)(f,offset,whence); |
760ac839 LW |
538 | } |
539 | ||
9e353e3b NIS |
540 | #undef PerlIO_tell |
541 | Off_t | |
542 | PerlIO_tell(PerlIO *f) | |
760ac839 | 543 | { |
9e353e3b | 544 | return (*PerlIOBase(f)->tab->Tell)(f); |
760ac839 LW |
545 | } |
546 | ||
9e353e3b | 547 | #undef PerlIO_flush |
6f9d8c32 | 548 | int |
9e353e3b | 549 | PerlIO_flush(PerlIO *f) |
760ac839 | 550 | { |
6f9d8c32 NIS |
551 | if (f) |
552 | { | |
9e353e3b | 553 | return (*PerlIOBase(f)->tab->Flush)(f); |
6f9d8c32 | 554 | } |
9e353e3b | 555 | else |
6f9d8c32 | 556 | { |
05d1247b | 557 | PerlIO **table = &_perlio; |
9e353e3b | 558 | int code = 0; |
05d1247b | 559 | while ((f = *table)) |
6f9d8c32 | 560 | { |
05d1247b NIS |
561 | int i; |
562 | table = (PerlIO **)(f++); | |
563 | for (i=1; i < PERLIO_TABLE_SIZE; i++) | |
9e353e3b NIS |
564 | { |
565 | if (*f && PerlIO_flush(f) != 0) | |
566 | code = -1; | |
05d1247b | 567 | f++; |
9e353e3b | 568 | } |
6f9d8c32 | 569 | } |
9e353e3b | 570 | return code; |
6f9d8c32 | 571 | } |
760ac839 LW |
572 | } |
573 | ||
06da4f11 NIS |
574 | #undef PerlIO_fill |
575 | int | |
576 | PerlIO_fill(PerlIO *f) | |
577 | { | |
578 | return (*PerlIOBase(f)->tab->Fill)(f); | |
579 | } | |
580 | ||
f3862f8b NIS |
581 | #undef PerlIO_isutf8 |
582 | int | |
583 | PerlIO_isutf8(PerlIO *f) | |
584 | { | |
585 | return (PerlIOBase(f)->flags & PERLIO_F_UTF8) != 0; | |
586 | } | |
587 | ||
9e353e3b | 588 | #undef PerlIO_eof |
6f9d8c32 | 589 | int |
9e353e3b | 590 | PerlIO_eof(PerlIO *f) |
760ac839 | 591 | { |
9e353e3b NIS |
592 | return (*PerlIOBase(f)->tab->Eof)(f); |
593 | } | |
594 | ||
595 | #undef PerlIO_error | |
596 | int | |
597 | PerlIO_error(PerlIO *f) | |
598 | { | |
599 | return (*PerlIOBase(f)->tab->Error)(f); | |
600 | } | |
601 | ||
602 | #undef PerlIO_clearerr | |
603 | void | |
604 | PerlIO_clearerr(PerlIO *f) | |
605 | { | |
606 | (*PerlIOBase(f)->tab->Clearerr)(f); | |
607 | } | |
608 | ||
609 | #undef PerlIO_setlinebuf | |
610 | void | |
611 | PerlIO_setlinebuf(PerlIO *f) | |
612 | { | |
613 | (*PerlIOBase(f)->tab->Setlinebuf)(f); | |
614 | } | |
615 | ||
616 | #undef PerlIO_has_base | |
617 | int | |
618 | PerlIO_has_base(PerlIO *f) | |
619 | { | |
620 | if (f && *f) | |
6f9d8c32 | 621 | { |
9e353e3b | 622 | return (PerlIOBase(f)->tab->Get_base != NULL); |
6f9d8c32 | 623 | } |
9e353e3b | 624 | return 0; |
760ac839 LW |
625 | } |
626 | ||
9e353e3b NIS |
627 | #undef PerlIO_fast_gets |
628 | int | |
629 | PerlIO_fast_gets(PerlIO *f) | |
760ac839 | 630 | { |
9e353e3b | 631 | if (f && *f) |
6f9d8c32 | 632 | { |
c7fc522f NIS |
633 | PerlIOl *l = PerlIOBase(f); |
634 | return (l->tab->Set_ptrcnt != NULL); | |
6f9d8c32 | 635 | } |
9e353e3b NIS |
636 | return 0; |
637 | } | |
638 | ||
639 | #undef PerlIO_has_cntptr | |
640 | int | |
641 | PerlIO_has_cntptr(PerlIO *f) | |
642 | { | |
643 | if (f && *f) | |
644 | { | |
645 | PerlIO_funcs *tab = PerlIOBase(f)->tab; | |
646 | return (tab->Get_ptr != NULL && tab->Get_cnt != NULL); | |
647 | } | |
648 | return 0; | |
649 | } | |
650 | ||
651 | #undef PerlIO_canset_cnt | |
652 | int | |
653 | PerlIO_canset_cnt(PerlIO *f) | |
654 | { | |
655 | if (f && *f) | |
656 | { | |
c7fc522f NIS |
657 | PerlIOl *l = PerlIOBase(f); |
658 | return (l->tab->Set_ptrcnt != NULL); | |
9e353e3b | 659 | } |
c7fc522f | 660 | return 0; |
760ac839 LW |
661 | } |
662 | ||
663 | #undef PerlIO_get_base | |
888911fc | 664 | STDCHAR * |
a20bf0c3 | 665 | PerlIO_get_base(PerlIO *f) |
760ac839 | 666 | { |
9e353e3b NIS |
667 | return (*PerlIOBase(f)->tab->Get_base)(f); |
668 | } | |
669 | ||
670 | #undef PerlIO_get_bufsiz | |
671 | int | |
672 | PerlIO_get_bufsiz(PerlIO *f) | |
673 | { | |
674 | return (*PerlIOBase(f)->tab->Get_bufsiz)(f); | |
675 | } | |
676 | ||
677 | #undef PerlIO_get_ptr | |
678 | STDCHAR * | |
679 | PerlIO_get_ptr(PerlIO *f) | |
680 | { | |
681 | return (*PerlIOBase(f)->tab->Get_ptr)(f); | |
682 | } | |
683 | ||
684 | #undef PerlIO_get_cnt | |
05d1247b | 685 | int |
9e353e3b NIS |
686 | PerlIO_get_cnt(PerlIO *f) |
687 | { | |
688 | return (*PerlIOBase(f)->tab->Get_cnt)(f); | |
689 | } | |
690 | ||
691 | #undef PerlIO_set_cnt | |
692 | void | |
05d1247b | 693 | PerlIO_set_cnt(PerlIO *f,int cnt) |
9e353e3b | 694 | { |
f3862f8b | 695 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,NULL,cnt); |
9e353e3b NIS |
696 | } |
697 | ||
698 | #undef PerlIO_set_ptrcnt | |
699 | void | |
05d1247b | 700 | PerlIO_set_ptrcnt(PerlIO *f, STDCHAR *ptr, int cnt) |
9e353e3b | 701 | { |
f3862f8b | 702 | (*PerlIOBase(f)->tab->Set_ptrcnt)(f,ptr,cnt); |
9e353e3b NIS |
703 | } |
704 | ||
705 | /*--------------------------------------------------------------------------------------*/ | |
706 | /* "Methods" of the "base class" */ | |
707 | ||
708 | IV | |
709 | PerlIOBase_fileno(PerlIO *f) | |
710 | { | |
711 | return PerlIO_fileno(PerlIONext(f)); | |
712 | } | |
713 | ||
76ced9ad NIS |
714 | IV |
715 | PerlIOBase_pushed(PerlIO *f, const char *mode) | |
9e353e3b | 716 | { |
76ced9ad NIS |
717 | PerlIOl *l = PerlIOBase(f); |
718 | l->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE| | |
719 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY); | |
720 | if (mode) | |
6f9d8c32 | 721 | { |
76ced9ad | 722 | switch (*mode++) |
06da4f11 | 723 | { |
76ced9ad NIS |
724 | case 'r': |
725 | l->flags = PERLIO_F_CANREAD; | |
726 | break; | |
727 | case 'a': | |
728 | l->flags = PERLIO_F_APPEND|PERLIO_F_CANWRITE; | |
729 | break; | |
730 | case 'w': | |
731 | l->flags = PERLIO_F_TRUNCATE|PERLIO_F_CANWRITE; | |
732 | break; | |
733 | default: | |
734 | errno = EINVAL; | |
735 | return -1; | |
736 | } | |
737 | while (*mode) | |
738 | { | |
739 | switch (*mode++) | |
740 | { | |
741 | case '+': | |
742 | l->flags |= PERLIO_F_CANREAD|PERLIO_F_CANWRITE; | |
743 | break; | |
744 | case 'b': | |
745 | l->flags |= PERLIO_F_BINARY; | |
746 | break; | |
747 | default: | |
748 | errno = EINVAL; | |
749 | return -1; | |
750 | } | |
06da4f11 | 751 | } |
6f9d8c32 | 752 | } |
76ced9ad NIS |
753 | else |
754 | { | |
755 | if (l->next) | |
756 | { | |
757 | l->flags |= l->next->flags & | |
758 | (PERLIO_F_CANREAD|PERLIO_F_CANWRITE| | |
759 | PERLIO_F_TRUNCATE|PERLIO_F_APPEND|PERLIO_F_BINARY); | |
760 | } | |
761 | } | |
762 | return 0; | |
763 | } | |
764 | ||
765 | IV | |
766 | PerlIOBase_popped(PerlIO *f) | |
767 | { | |
768 | return 0; | |
760ac839 LW |
769 | } |
770 | ||
9e353e3b NIS |
771 | SSize_t |
772 | PerlIOBase_unread(PerlIO *f, const void *vbuf, Size_t count) | |
773 | { | |
774 | Off_t old = PerlIO_tell(f); | |
775 | if (PerlIO_seek(f,-((Off_t)count),SEEK_CUR) == 0) | |
776 | { | |
777 | Off_t new = PerlIO_tell(f); | |
778 | return old - new; | |
779 | } | |
780 | return 0; | |
781 | } | |
782 | ||
783 | IV | |
06da4f11 | 784 | PerlIOBase_noop_ok(PerlIO *f) |
9e353e3b NIS |
785 | { |
786 | return 0; | |
787 | } | |
788 | ||
789 | IV | |
06da4f11 NIS |
790 | PerlIOBase_noop_fail(PerlIO *f) |
791 | { | |
792 | return -1; | |
793 | } | |
794 | ||
795 | IV | |
9e353e3b NIS |
796 | PerlIOBase_close(PerlIO *f) |
797 | { | |
798 | IV code = 0; | |
799 | if (PerlIO_flush(f) != 0) | |
800 | code = -1; | |
801 | if (PerlIO_close(PerlIONext(f)) != 0) | |
802 | code = -1; | |
803 | PerlIOBase(f)->flags &= ~(PERLIO_F_CANREAD|PERLIO_F_CANWRITE|PERLIO_F_OPEN); | |
804 | return code; | |
805 | } | |
806 | ||
807 | IV | |
808 | PerlIOBase_eof(PerlIO *f) | |
809 | { | |
810 | if (f && *f) | |
811 | { | |
812 | return (PerlIOBase(f)->flags & PERLIO_F_EOF) != 0; | |
813 | } | |
814 | return 1; | |
815 | } | |
816 | ||
817 | IV | |
818 | PerlIOBase_error(PerlIO *f) | |
819 | { | |
820 | if (f && *f) | |
821 | { | |
822 | return (PerlIOBase(f)->flags & PERLIO_F_ERROR) != 0; | |
823 | } | |
824 | return 1; | |
825 | } | |
826 | ||
827 | void | |
828 | PerlIOBase_clearerr(PerlIO *f) | |
829 | { | |
830 | if (f && *f) | |
831 | { | |
832 | PerlIOBase(f)->flags &= ~PERLIO_F_ERROR; | |
833 | } | |
834 | } | |
835 | ||
836 | void | |
837 | PerlIOBase_setlinebuf(PerlIO *f) | |
838 | { | |
839 | ||
840 | } | |
841 | ||
9e353e3b NIS |
842 | /*--------------------------------------------------------------------------------------*/ |
843 | /* Bottom-most level for UNIX-like case */ | |
844 | ||
845 | typedef struct | |
846 | { | |
847 | struct _PerlIO base; /* The generic part */ | |
848 | int fd; /* UNIX like file descriptor */ | |
849 | int oflags; /* open/fcntl flags */ | |
850 | } PerlIOUnix; | |
851 | ||
6f9d8c32 | 852 | int |
9e353e3b | 853 | PerlIOUnix_oflags(const char *mode) |
760ac839 | 854 | { |
9e353e3b NIS |
855 | int oflags = -1; |
856 | switch(*mode) | |
857 | { | |
858 | case 'r': | |
859 | oflags = O_RDONLY; | |
860 | if (*++mode == '+') | |
861 | { | |
862 | oflags = O_RDWR; | |
863 | mode++; | |
864 | } | |
865 | break; | |
866 | ||
867 | case 'w': | |
868 | oflags = O_CREAT|O_TRUNC; | |
869 | if (*++mode == '+') | |
870 | { | |
871 | oflags |= O_RDWR; | |
872 | mode++; | |
873 | } | |
874 | else | |
875 | oflags |= O_WRONLY; | |
876 | break; | |
877 | ||
878 | case 'a': | |
879 | oflags = O_CREAT|O_APPEND; | |
880 | if (*++mode == '+') | |
881 | { | |
882 | oflags |= O_RDWR; | |
883 | mode++; | |
884 | } | |
885 | else | |
886 | oflags |= O_WRONLY; | |
887 | break; | |
888 | } | |
889 | if (*mode || oflags == -1) | |
6f9d8c32 | 890 | { |
9e353e3b NIS |
891 | errno = EINVAL; |
892 | oflags = -1; | |
6f9d8c32 | 893 | } |
9e353e3b NIS |
894 | return oflags; |
895 | } | |
896 | ||
897 | IV | |
898 | PerlIOUnix_fileno(PerlIO *f) | |
899 | { | |
900 | return PerlIOSelf(f,PerlIOUnix)->fd; | |
901 | } | |
902 | ||
903 | PerlIO * | |
06da4f11 | 904 | PerlIOUnix_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b NIS |
905 | { |
906 | PerlIO *f = NULL; | |
c7fc522f NIS |
907 | if (*mode == 'I') |
908 | mode++; | |
9e353e3b NIS |
909 | if (fd >= 0) |
910 | { | |
911 | int oflags = PerlIOUnix_oflags(mode); | |
912 | if (oflags != -1) | |
913 | { | |
06da4f11 | 914 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOUnix); |
9e353e3b NIS |
915 | s->fd = fd; |
916 | s->oflags = oflags; | |
917 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
918 | } | |
919 | } | |
920 | return f; | |
921 | } | |
922 | ||
923 | PerlIO * | |
06da4f11 | 924 | PerlIOUnix_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b NIS |
925 | { |
926 | PerlIO *f = NULL; | |
927 | int oflags = PerlIOUnix_oflags(mode); | |
928 | if (oflags != -1) | |
929 | { | |
00b02797 | 930 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b NIS |
931 | if (fd >= 0) |
932 | { | |
06da4f11 | 933 | PerlIOUnix *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOUnix); |
9e353e3b NIS |
934 | s->fd = fd; |
935 | s->oflags = oflags; | |
936 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
937 | } | |
938 | } | |
939 | return f; | |
760ac839 LW |
940 | } |
941 | ||
760ac839 | 942 | int |
9e353e3b | 943 | PerlIOUnix_reopen(const char *path, const char *mode, PerlIO *f) |
760ac839 | 944 | { |
9e353e3b NIS |
945 | PerlIOUnix *s = PerlIOSelf(f,PerlIOUnix); |
946 | int oflags = PerlIOUnix_oflags(mode); | |
947 | if (PerlIOBase(f)->flags & PERLIO_F_OPEN) | |
948 | (*PerlIOBase(f)->tab->Close)(f); | |
949 | if (oflags != -1) | |
950 | { | |
00b02797 | 951 | int fd = PerlLIO_open3(path,oflags,0666); |
9e353e3b NIS |
952 | if (fd >= 0) |
953 | { | |
954 | s->fd = fd; | |
955 | s->oflags = oflags; | |
956 | PerlIOBase(f)->flags |= PERLIO_F_OPEN; | |
957 | return 0; | |
958 | } | |
959 | } | |
960 | return -1; | |
961 | } | |
962 | ||
963 | SSize_t | |
964 | PerlIOUnix_read(PerlIO *f, void *vbuf, Size_t count) | |
965 | { | |
966 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
8f24bd79 NIS |
967 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
968 | return 0; | |
9e353e3b NIS |
969 | while (1) |
970 | { | |
00b02797 | 971 | SSize_t len = PerlLIO_read(fd,vbuf,count); |
9e353e3b | 972 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
973 | { |
974 | if (len < 0) | |
975 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
976 | else if (len == 0 && count != 0) | |
977 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
978 | return len; | |
979 | } | |
9e353e3b NIS |
980 | } |
981 | } | |
982 | ||
983 | SSize_t | |
984 | PerlIOUnix_write(PerlIO *f, const void *vbuf, Size_t count) | |
985 | { | |
986 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
987 | while (1) | |
988 | { | |
00b02797 | 989 | SSize_t len = PerlLIO_write(fd,vbuf,count); |
9e353e3b | 990 | if (len >= 0 || errno != EINTR) |
06da4f11 NIS |
991 | { |
992 | if (len < 0) | |
993 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
994 | return len; | |
995 | } | |
9e353e3b NIS |
996 | } |
997 | } | |
998 | ||
999 | IV | |
1000 | PerlIOUnix_seek(PerlIO *f, Off_t offset, int whence) | |
1001 | { | |
00b02797 | 1002 | Off_t new = PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,offset,whence); |
06da4f11 | 1003 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; |
9e353e3b NIS |
1004 | return (new == (Off_t) -1) ? -1 : 0; |
1005 | } | |
1006 | ||
1007 | Off_t | |
1008 | PerlIOUnix_tell(PerlIO *f) | |
1009 | { | |
00b02797 | 1010 | return PerlLIO_lseek(PerlIOSelf(f,PerlIOUnix)->fd,0,SEEK_CUR); |
9e353e3b NIS |
1011 | } |
1012 | ||
1013 | IV | |
1014 | PerlIOUnix_close(PerlIO *f) | |
1015 | { | |
1016 | int fd = PerlIOSelf(f,PerlIOUnix)->fd; | |
1017 | int code = 0; | |
00b02797 | 1018 | while (PerlLIO_close(fd) != 0) |
9e353e3b NIS |
1019 | { |
1020 | if (errno != EINTR) | |
1021 | { | |
1022 | code = -1; | |
1023 | break; | |
1024 | } | |
1025 | } | |
1026 | if (code == 0) | |
1027 | { | |
1028 | PerlIOBase(f)->flags &= ~PERLIO_F_OPEN; | |
1029 | } | |
1030 | return code; | |
1031 | } | |
1032 | ||
1033 | PerlIO_funcs PerlIO_unix = { | |
1034 | "unix", | |
1035 | sizeof(PerlIOUnix), | |
1036 | 0, | |
1037 | PerlIOUnix_fileno, | |
1038 | PerlIOUnix_fdopen, | |
1039 | PerlIOUnix_open, | |
1040 | PerlIOUnix_reopen, | |
06da4f11 NIS |
1041 | PerlIOBase_pushed, |
1042 | PerlIOBase_noop_ok, | |
9e353e3b NIS |
1043 | PerlIOUnix_read, |
1044 | PerlIOBase_unread, | |
1045 | PerlIOUnix_write, | |
1046 | PerlIOUnix_seek, | |
1047 | PerlIOUnix_tell, | |
1048 | PerlIOUnix_close, | |
76ced9ad NIS |
1049 | PerlIOBase_noop_ok, /* flush */ |
1050 | PerlIOBase_noop_fail, /* fill */ | |
9e353e3b NIS |
1051 | PerlIOBase_eof, |
1052 | PerlIOBase_error, | |
1053 | PerlIOBase_clearerr, | |
1054 | PerlIOBase_setlinebuf, | |
1055 | NULL, /* get_base */ | |
1056 | NULL, /* get_bufsiz */ | |
1057 | NULL, /* get_ptr */ | |
1058 | NULL, /* get_cnt */ | |
1059 | NULL, /* set_ptrcnt */ | |
1060 | }; | |
1061 | ||
1062 | /*--------------------------------------------------------------------------------------*/ | |
1063 | /* stdio as a layer */ | |
1064 | ||
1065 | typedef struct | |
1066 | { | |
1067 | struct _PerlIO base; | |
1068 | FILE * stdio; /* The stream */ | |
1069 | } PerlIOStdio; | |
1070 | ||
1071 | IV | |
1072 | PerlIOStdio_fileno(PerlIO *f) | |
1073 | { | |
1074 | return fileno(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1075 | } | |
1076 | ||
1077 | ||
1078 | PerlIO * | |
06da4f11 | 1079 | PerlIOStdio_fdopen(PerlIO_funcs *self, int fd,const char *mode) |
9e353e3b NIS |
1080 | { |
1081 | PerlIO *f = NULL; | |
c7fc522f NIS |
1082 | int init = 0; |
1083 | if (*mode == 'I') | |
1084 | { | |
1085 | init = 1; | |
1086 | mode++; | |
1087 | } | |
9e353e3b NIS |
1088 | if (fd >= 0) |
1089 | { | |
c7fc522f NIS |
1090 | FILE *stdio = NULL; |
1091 | if (init) | |
1092 | { | |
1093 | switch(fd) | |
1094 | { | |
1095 | case 0: | |
1096 | stdio = stdin; | |
1097 | break; | |
1098 | case 1: | |
1099 | stdio = stdout; | |
1100 | break; | |
1101 | case 2: | |
1102 | stdio = stderr; | |
1103 | break; | |
1104 | } | |
1105 | } | |
1106 | else | |
1107 | stdio = fdopen(fd,mode); | |
9e353e3b NIS |
1108 | if (stdio) |
1109 | { | |
06da4f11 | 1110 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOStdio); |
9e353e3b NIS |
1111 | s->stdio = stdio; |
1112 | } | |
1113 | } | |
1114 | return f; | |
1115 | } | |
1116 | ||
1117 | #undef PerlIO_importFILE | |
1118 | PerlIO * | |
1119 | PerlIO_importFILE(FILE *stdio, int fl) | |
1120 | { | |
1121 | PerlIO *f = NULL; | |
1122 | if (stdio) | |
1123 | { | |
1124 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),&PerlIO_stdio,"r+"),PerlIOStdio); | |
1125 | s->stdio = stdio; | |
1126 | } | |
1127 | return f; | |
1128 | } | |
1129 | ||
1130 | PerlIO * | |
06da4f11 | 1131 | PerlIOStdio_open(PerlIO_funcs *self, const char *path,const char *mode) |
9e353e3b NIS |
1132 | { |
1133 | PerlIO *f = NULL; | |
1134 | FILE *stdio = fopen(path,mode); | |
1135 | if (stdio) | |
1136 | { | |
06da4f11 | 1137 | PerlIOStdio *s = PerlIOSelf(PerlIO_push(f = PerlIO_allocate(),self,mode),PerlIOStdio); |
9e353e3b NIS |
1138 | s->stdio = stdio; |
1139 | } | |
1140 | return f; | |
760ac839 LW |
1141 | } |
1142 | ||
6f9d8c32 | 1143 | int |
9e353e3b NIS |
1144 | PerlIOStdio_reopen(const char *path, const char *mode, PerlIO *f) |
1145 | { | |
1146 | PerlIOStdio *s = PerlIOSelf(f,PerlIOStdio); | |
1147 | FILE *stdio = freopen(path,mode,s->stdio); | |
1148 | if (!s->stdio) | |
1149 | return -1; | |
1150 | s->stdio = stdio; | |
1151 | return 0; | |
1152 | } | |
1153 | ||
1154 | SSize_t | |
1155 | PerlIOStdio_read(PerlIO *f, void *vbuf, Size_t count) | |
1156 | { | |
1157 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; | |
c7fc522f | 1158 | SSize_t got = 0; |
9e353e3b NIS |
1159 | if (count == 1) |
1160 | { | |
1161 | STDCHAR *buf = (STDCHAR *) vbuf; | |
1162 | /* Perl is expecting PerlIO_getc() to fill the buffer | |
1163 | * Linux's stdio does not do that for fread() | |
1164 | */ | |
1165 | int ch = fgetc(s); | |
1166 | if (ch != EOF) | |
1167 | { | |
1168 | *buf = ch; | |
c7fc522f | 1169 | got = 1; |
9e353e3b | 1170 | } |
9e353e3b | 1171 | } |
c7fc522f NIS |
1172 | else |
1173 | got = fread(vbuf,1,count,s); | |
1174 | return got; | |
9e353e3b NIS |
1175 | } |
1176 | ||
1177 | SSize_t | |
1178 | PerlIOStdio_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1179 | { | |
1180 | FILE *s = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1181 | STDCHAR *buf = ((STDCHAR *)vbuf)+count-1; | |
1182 | SSize_t unread = 0; | |
1183 | while (count > 0) | |
1184 | { | |
1185 | int ch = *buf-- & 0xff; | |
1186 | if (ungetc(ch,s) != ch) | |
1187 | break; | |
1188 | unread++; | |
1189 | count--; | |
1190 | } | |
1191 | return unread; | |
1192 | } | |
1193 | ||
1194 | SSize_t | |
1195 | PerlIOStdio_write(PerlIO *f, const void *vbuf, Size_t count) | |
1196 | { | |
1197 | return fwrite(vbuf,1,count,PerlIOSelf(f,PerlIOStdio)->stdio); | |
1198 | } | |
1199 | ||
1200 | IV | |
1201 | PerlIOStdio_seek(PerlIO *f, Off_t offset, int whence) | |
1202 | { | |
c7fc522f NIS |
1203 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1204 | return fseek(stdio,offset,whence); | |
9e353e3b NIS |
1205 | } |
1206 | ||
1207 | Off_t | |
1208 | PerlIOStdio_tell(PerlIO *f) | |
1209 | { | |
c7fc522f NIS |
1210 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; |
1211 | return ftell(stdio); | |
9e353e3b NIS |
1212 | } |
1213 | ||
1214 | IV | |
1215 | PerlIOStdio_close(PerlIO *f) | |
1216 | { | |
1217 | return fclose(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1218 | } | |
1219 | ||
1220 | IV | |
1221 | PerlIOStdio_flush(PerlIO *f) | |
1222 | { | |
1223 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1224 | return fflush(stdio); | |
1225 | } | |
1226 | ||
1227 | IV | |
06da4f11 NIS |
1228 | PerlIOStdio_fill(PerlIO *f) |
1229 | { | |
1230 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1231 | int c; | |
1232 | if (fflush(stdio) != 0) | |
1233 | return EOF; | |
1234 | c = fgetc(stdio); | |
1235 | if (c == EOF || ungetc(c,stdio) != c) | |
1236 | return EOF; | |
1237 | return 0; | |
1238 | } | |
1239 | ||
1240 | IV | |
9e353e3b NIS |
1241 | PerlIOStdio_eof(PerlIO *f) |
1242 | { | |
1243 | return feof(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1244 | } | |
1245 | ||
1246 | IV | |
1247 | PerlIOStdio_error(PerlIO *f) | |
1248 | { | |
1249 | return ferror(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1250 | } | |
1251 | ||
1252 | void | |
1253 | PerlIOStdio_clearerr(PerlIO *f) | |
1254 | { | |
1255 | clearerr(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1256 | } | |
1257 | ||
1258 | void | |
1259 | PerlIOStdio_setlinebuf(PerlIO *f) | |
1260 | { | |
1261 | #ifdef HAS_SETLINEBUF | |
1262 | setlinebuf(PerlIOSelf(f,PerlIOStdio)->stdio); | |
1263 | #else | |
1264 | setvbuf(PerlIOSelf(f,PerlIOStdio)->stdio, Nullch, _IOLBF, 0); | |
1265 | #endif | |
1266 | } | |
1267 | ||
1268 | #ifdef FILE_base | |
1269 | STDCHAR * | |
1270 | PerlIOStdio_get_base(PerlIO *f) | |
1271 | { | |
1272 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1273 | return FILE_base(stdio); | |
1274 | } | |
1275 | ||
1276 | Size_t | |
1277 | PerlIOStdio_get_bufsiz(PerlIO *f) | |
1278 | { | |
1279 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1280 | return FILE_bufsiz(stdio); | |
1281 | } | |
1282 | #endif | |
1283 | ||
1284 | #ifdef USE_STDIO_PTR | |
1285 | STDCHAR * | |
1286 | PerlIOStdio_get_ptr(PerlIO *f) | |
1287 | { | |
1288 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1289 | return FILE_ptr(stdio); | |
1290 | } | |
1291 | ||
1292 | SSize_t | |
1293 | PerlIOStdio_get_cnt(PerlIO *f) | |
1294 | { | |
1295 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1296 | return FILE_cnt(stdio); | |
1297 | } | |
1298 | ||
1299 | void | |
1300 | PerlIOStdio_set_ptrcnt(PerlIO *f,STDCHAR *ptr,SSize_t cnt) | |
1301 | { | |
1302 | FILE *stdio = PerlIOSelf(f,PerlIOStdio)->stdio; | |
1303 | if (ptr != NULL) | |
1304 | { | |
1305 | #ifdef STDIO_PTR_LVALUE | |
1306 | FILE_ptr(stdio) = ptr; | |
1307 | #ifdef STDIO_PTR_LVAL_SETS_CNT | |
1308 | if (FILE_cnt(stdio) != (cnt)) | |
1309 | { | |
1310 | dTHX; | |
1311 | assert(FILE_cnt(stdio) == (cnt)); | |
1312 | } | |
1313 | #endif | |
1314 | #if (!defined(STDIO_PTR_LVAL_NOCHANGE_CNT)) | |
1315 | /* Setting ptr _does_ change cnt - we are done */ | |
1316 | return; | |
1317 | #endif | |
1318 | #else /* STDIO_PTR_LVALUE */ | |
1319 | abort(); | |
1320 | #endif /* STDIO_PTR_LVALUE */ | |
1321 | } | |
1322 | /* Now (or only) set cnt */ | |
1323 | #ifdef STDIO_CNT_LVALUE | |
1324 | FILE_cnt(stdio) = cnt; | |
1325 | #else /* STDIO_CNT_LVALUE */ | |
1326 | #if (defined(STDIO_PTR_LVALUE) && defined(STDIO_PTR_LVAL_SETS_CNT)) | |
1327 | FILE_ptr(stdio) = FILE_ptr(stdio)+(FILE_cnt(stdio)-cnt); | |
1328 | #else /* STDIO_PTR_LVAL_SETS_CNT */ | |
1329 | abort(); | |
1330 | #endif /* STDIO_PTR_LVAL_SETS_CNT */ | |
1331 | #endif /* STDIO_CNT_LVALUE */ | |
1332 | } | |
1333 | ||
1334 | #endif | |
1335 | ||
1336 | PerlIO_funcs PerlIO_stdio = { | |
1337 | "stdio", | |
1338 | sizeof(PerlIOStdio), | |
1339 | 0, | |
1340 | PerlIOStdio_fileno, | |
1341 | PerlIOStdio_fdopen, | |
1342 | PerlIOStdio_open, | |
1343 | PerlIOStdio_reopen, | |
06da4f11 NIS |
1344 | PerlIOBase_pushed, |
1345 | PerlIOBase_noop_ok, | |
9e353e3b NIS |
1346 | PerlIOStdio_read, |
1347 | PerlIOStdio_unread, | |
1348 | PerlIOStdio_write, | |
1349 | PerlIOStdio_seek, | |
1350 | PerlIOStdio_tell, | |
1351 | PerlIOStdio_close, | |
1352 | PerlIOStdio_flush, | |
06da4f11 | 1353 | PerlIOStdio_fill, |
9e353e3b NIS |
1354 | PerlIOStdio_eof, |
1355 | PerlIOStdio_error, | |
1356 | PerlIOStdio_clearerr, | |
1357 | PerlIOStdio_setlinebuf, | |
1358 | #ifdef FILE_base | |
1359 | PerlIOStdio_get_base, | |
1360 | PerlIOStdio_get_bufsiz, | |
1361 | #else | |
1362 | NULL, | |
1363 | NULL, | |
1364 | #endif | |
1365 | #ifdef USE_STDIO_PTR | |
1366 | PerlIOStdio_get_ptr, | |
1367 | PerlIOStdio_get_cnt, | |
0eb1d8a4 | 1368 | #if (defined(STDIO_PTR_LVALUE) && (defined(STDIO_CNT_LVALUE) || defined(STDIO_PTR_LVAL_SETS_CNT))) |
9e353e3b NIS |
1369 | PerlIOStdio_set_ptrcnt |
1370 | #else /* STDIO_PTR_LVALUE */ | |
1371 | NULL | |
1372 | #endif /* STDIO_PTR_LVALUE */ | |
1373 | #else /* USE_STDIO_PTR */ | |
1374 | NULL, | |
1375 | NULL, | |
1376 | NULL | |
1377 | #endif /* USE_STDIO_PTR */ | |
1378 | }; | |
1379 | ||
1380 | #undef PerlIO_exportFILE | |
1381 | FILE * | |
1382 | PerlIO_exportFILE(PerlIO *f, int fl) | |
1383 | { | |
1384 | PerlIO_flush(f); | |
1385 | /* Should really push stdio discipline when we have them */ | |
1386 | return fdopen(PerlIO_fileno(f),"r+"); | |
1387 | } | |
1388 | ||
1389 | #undef PerlIO_findFILE | |
1390 | FILE * | |
1391 | PerlIO_findFILE(PerlIO *f) | |
1392 | { | |
1393 | return PerlIO_exportFILE(f,0); | |
1394 | } | |
1395 | ||
1396 | #undef PerlIO_releaseFILE | |
1397 | void | |
1398 | PerlIO_releaseFILE(PerlIO *p, FILE *f) | |
1399 | { | |
1400 | } | |
1401 | ||
1402 | /*--------------------------------------------------------------------------------------*/ | |
1403 | /* perlio buffer layer */ | |
1404 | ||
9e353e3b | 1405 | PerlIO * |
06da4f11 | 1406 | PerlIOBuf_fdopen(PerlIO_funcs *self, int fd, const char *mode) |
9e353e3b NIS |
1407 | { |
1408 | PerlIO_funcs *tab = PerlIO_default_btm(); | |
c7fc522f NIS |
1409 | int init = 0; |
1410 | PerlIO *f; | |
1411 | if (*mode == 'I') | |
1412 | { | |
1413 | init = 1; | |
1414 | mode++; | |
1415 | } | |
06da4f11 | 1416 | f = (*tab->Fdopen)(tab,fd,mode); |
6f9d8c32 NIS |
1417 | if (f) |
1418 | { | |
c7fc522f NIS |
1419 | /* Initial stderr is unbuffered */ |
1420 | if (!init || fd != 2) | |
1421 | { | |
06da4f11 | 1422 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,NULL),PerlIOBuf); |
c7fc522f NIS |
1423 | b->posn = PerlIO_tell(PerlIONext(f)); |
1424 | } | |
6f9d8c32 | 1425 | } |
9e353e3b | 1426 | return f; |
760ac839 LW |
1427 | } |
1428 | ||
9e353e3b | 1429 | PerlIO * |
06da4f11 | 1430 | PerlIOBuf_open(PerlIO_funcs *self, const char *path, const char *mode) |
8c86a920 | 1431 | { |
9e353e3b | 1432 | PerlIO_funcs *tab = PerlIO_default_btm(); |
06da4f11 | 1433 | PerlIO *f = (*tab->Open)(tab,path,mode); |
9e353e3b NIS |
1434 | if (f) |
1435 | { | |
06da4f11 | 1436 | PerlIOBuf *b = PerlIOSelf(PerlIO_push(f,self,NULL),PerlIOBuf); |
c3d7c7c9 | 1437 | b->posn = PerlIO_tell(PerlIONext(f)); |
9e353e3b NIS |
1438 | } |
1439 | return f; | |
1440 | } | |
1441 | ||
1442 | int | |
c3d7c7c9 | 1443 | PerlIOBuf_reopen(const char *path, const char *mode, PerlIO *f) |
9e353e3b | 1444 | { |
c3d7c7c9 NIS |
1445 | PerlIO *next = PerlIONext(f); |
1446 | int code = (*PerlIOBase(next)->tab->Reopen)(path,mode,next); | |
1447 | if (code = 0) | |
1448 | code = (*PerlIOBase(f)->tab->Pushed)(f,mode); | |
1449 | if (code == 0) | |
1450 | { | |
1451 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1452 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1453 | } | |
1454 | return code; | |
9e353e3b NIS |
1455 | } |
1456 | ||
9e353e3b NIS |
1457 | /* This "flush" is akin to sfio's sync in that it handles files in either |
1458 | read or write state | |
1459 | */ | |
1460 | IV | |
1461 | PerlIOBuf_flush(PerlIO *f) | |
6f9d8c32 | 1462 | { |
9e353e3b NIS |
1463 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1464 | int code = 0; | |
1465 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
1466 | { | |
1467 | /* write() the buffer */ | |
1468 | STDCHAR *p = b->buf; | |
1469 | int count; | |
1470 | while (p < b->ptr) | |
1471 | { | |
1472 | count = PerlIO_write(PerlIONext(f),p,b->ptr - p); | |
1473 | if (count > 0) | |
1474 | { | |
1475 | p += count; | |
1476 | } | |
1477 | else if (count < 0) | |
1478 | { | |
1479 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1480 | code = -1; | |
1481 | break; | |
1482 | } | |
1483 | } | |
1484 | b->posn += (p - b->buf); | |
1485 | } | |
1486 | else if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
6f9d8c32 | 1487 | { |
9e353e3b NIS |
1488 | /* Note position change */ |
1489 | b->posn += (b->ptr - b->buf); | |
1490 | if (b->ptr < b->end) | |
1491 | { | |
1492 | /* We did not consume all of it */ | |
1493 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) == 0) | |
1494 | { | |
1495 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1496 | } | |
1497 | } | |
6f9d8c32 | 1498 | } |
9e353e3b NIS |
1499 | b->ptr = b->end = b->buf; |
1500 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1501 | if (PerlIO_flush(PerlIONext(f)) != 0) | |
1502 | code = -1; | |
1503 | return code; | |
6f9d8c32 NIS |
1504 | } |
1505 | ||
06da4f11 NIS |
1506 | IV |
1507 | PerlIOBuf_fill(PerlIO *f) | |
1508 | { | |
1509 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1510 | SSize_t avail; | |
1511 | if (PerlIO_flush(f) != 0) | |
1512 | return -1; | |
1513 | b->ptr = b->end = b->buf; | |
1514 | avail = PerlIO_read(PerlIONext(f),b->ptr,b->bufsiz); | |
1515 | if (avail <= 0) | |
1516 | { | |
1517 | if (avail == 0) | |
1518 | PerlIOBase(f)->flags |= PERLIO_F_EOF; | |
1519 | else | |
1520 | PerlIOBase(f)->flags |= PERLIO_F_ERROR; | |
1521 | return -1; | |
1522 | } | |
1523 | b->end = b->buf+avail; | |
1524 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; | |
1525 | return 0; | |
1526 | } | |
1527 | ||
6f9d8c32 | 1528 | SSize_t |
9e353e3b | 1529 | PerlIOBuf_read(PerlIO *f, void *vbuf, Size_t count) |
6f9d8c32 | 1530 | { |
9e353e3b | 1531 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
6f9d8c32 NIS |
1532 | STDCHAR *buf = (STDCHAR *) vbuf; |
1533 | if (f) | |
1534 | { | |
1535 | Size_t got = 0; | |
9e353e3b | 1536 | if (!b->ptr) |
06da4f11 | 1537 | PerlIO_get_base(f); |
9e353e3b | 1538 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANREAD)) |
f89522bf | 1539 | return 0; |
6f9d8c32 NIS |
1540 | while (count > 0) |
1541 | { | |
9e353e3b | 1542 | SSize_t avail = (b->end - b->ptr); |
6f9d8c32 NIS |
1543 | if ((SSize_t) count < avail) |
1544 | avail = count; | |
1545 | if (avail > 0) | |
1546 | { | |
9e353e3b | 1547 | Copy(b->ptr,buf,avail,char); |
6f9d8c32 | 1548 | got += avail; |
9e353e3b | 1549 | b->ptr += avail; |
6f9d8c32 NIS |
1550 | count -= avail; |
1551 | buf += avail; | |
1552 | } | |
9e353e3b | 1553 | if (count && (b->ptr >= b->end)) |
6f9d8c32 | 1554 | { |
06da4f11 NIS |
1555 | if (PerlIO_fill(f) != 0) |
1556 | break; | |
6f9d8c32 NIS |
1557 | } |
1558 | } | |
1559 | return got; | |
1560 | } | |
1561 | return 0; | |
1562 | } | |
1563 | ||
9e353e3b NIS |
1564 | SSize_t |
1565 | PerlIOBuf_unread(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1566 | { |
9e353e3b NIS |
1567 | const STDCHAR *buf = (const STDCHAR *) vbuf+count; |
1568 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1569 | SSize_t unread = 0; | |
1570 | SSize_t avail; | |
9e353e3b NIS |
1571 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) |
1572 | PerlIO_flush(f); | |
06da4f11 NIS |
1573 | if (!b->buf) |
1574 | PerlIO_get_base(f); | |
9e353e3b NIS |
1575 | if (b->buf) |
1576 | { | |
1577 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) | |
1578 | { | |
1579 | avail = (b->ptr - b->buf); | |
1580 | if (avail > (SSize_t) count) | |
1581 | avail = count; | |
1582 | b->ptr -= avail; | |
1583 | } | |
1584 | else | |
1585 | { | |
1586 | avail = b->bufsiz; | |
1587 | if (avail > (SSize_t) count) | |
1588 | avail = count; | |
1589 | b->end = b->ptr + avail; | |
1590 | } | |
1591 | if (avail > 0) | |
1592 | { | |
1593 | buf -= avail; | |
1594 | if (buf != b->ptr) | |
1595 | { | |
1596 | Copy(buf,b->ptr,avail,char); | |
1597 | } | |
1598 | count -= avail; | |
1599 | unread += avail; | |
1600 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
1601 | } | |
1602 | } | |
1603 | return unread; | |
760ac839 LW |
1604 | } |
1605 | ||
9e353e3b NIS |
1606 | SSize_t |
1607 | PerlIOBuf_write(PerlIO *f, const void *vbuf, Size_t count) | |
760ac839 | 1608 | { |
9e353e3b NIS |
1609 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); |
1610 | const STDCHAR *buf = (const STDCHAR *) vbuf; | |
1611 | Size_t written = 0; | |
1612 | if (!b->buf) | |
06da4f11 | 1613 | PerlIO_get_base(f); |
9e353e3b NIS |
1614 | if (!(PerlIOBase(f)->flags & PERLIO_F_CANWRITE)) |
1615 | return 0; | |
1616 | while (count > 0) | |
1617 | { | |
1618 | SSize_t avail = b->bufsiz - (b->ptr - b->buf); | |
1619 | if ((SSize_t) count < avail) | |
1620 | avail = count; | |
1621 | PerlIOBase(f)->flags |= PERLIO_F_WRBUF; | |
1622 | if (PerlIOBase(f)->flags & PERLIO_F_LINEBUF) | |
1623 | { | |
1624 | while (avail > 0) | |
1625 | { | |
1626 | int ch = *buf++; | |
1627 | *(b->ptr)++ = ch; | |
1628 | count--; | |
1629 | avail--; | |
1630 | written++; | |
1631 | if (ch == '\n') | |
1632 | { | |
1633 | PerlIO_flush(f); | |
1634 | break; | |
1635 | } | |
1636 | } | |
1637 | } | |
1638 | else | |
1639 | { | |
1640 | if (avail) | |
1641 | { | |
1642 | Copy(buf,b->ptr,avail,char); | |
1643 | count -= avail; | |
1644 | buf += avail; | |
1645 | written += avail; | |
1646 | b->ptr += avail; | |
1647 | } | |
1648 | } | |
1649 | if (b->ptr >= (b->buf + b->bufsiz)) | |
1650 | PerlIO_flush(f); | |
1651 | } | |
1652 | return written; | |
1653 | } | |
1654 | ||
1655 | IV | |
1656 | PerlIOBuf_seek(PerlIO *f, Off_t offset, int whence) | |
1657 | { | |
1658 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
06da4f11 | 1659 | int code = PerlIO_flush(f); |
9e353e3b NIS |
1660 | if (code == 0) |
1661 | { | |
1662 | PerlIOBase(f)->flags &= ~PERLIO_F_EOF; | |
1663 | code = PerlIO_seek(PerlIONext(f),offset,whence); | |
1664 | if (code == 0) | |
1665 | { | |
1666 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1667 | } | |
1668 | } | |
1669 | return code; | |
1670 | } | |
1671 | ||
1672 | Off_t | |
1673 | PerlIOBuf_tell(PerlIO *f) | |
1674 | { | |
1675 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1676 | Off_t posn = b->posn; | |
1677 | if (b->buf) | |
1678 | posn += (b->ptr - b->buf); | |
1679 | return posn; | |
1680 | } | |
1681 | ||
1682 | IV | |
1683 | PerlIOBuf_close(PerlIO *f) | |
1684 | { | |
1685 | IV code = PerlIOBase_close(f); | |
1686 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1687 | if (b->buf && b->buf != (STDCHAR *) &b->oneword) | |
6f9d8c32 | 1688 | { |
9e353e3b | 1689 | Safefree(b->buf); |
6f9d8c32 | 1690 | } |
9e353e3b NIS |
1691 | b->buf = NULL; |
1692 | b->ptr = b->end = b->buf; | |
1693 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1694 | return code; | |
760ac839 LW |
1695 | } |
1696 | ||
760ac839 | 1697 | void |
9e353e3b | 1698 | PerlIOBuf_setlinebuf(PerlIO *f) |
760ac839 | 1699 | { |
6f9d8c32 NIS |
1700 | if (f) |
1701 | { | |
9e353e3b | 1702 | PerlIOBase(f)->flags &= ~PERLIO_F_LINEBUF; |
6f9d8c32 | 1703 | } |
760ac839 LW |
1704 | } |
1705 | ||
9e353e3b NIS |
1706 | STDCHAR * |
1707 | PerlIOBuf_get_ptr(PerlIO *f) | |
1708 | { | |
1709 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1710 | if (!b->buf) | |
06da4f11 | 1711 | PerlIO_get_base(f); |
9e353e3b NIS |
1712 | return b->ptr; |
1713 | } | |
1714 | ||
05d1247b | 1715 | SSize_t |
9e353e3b NIS |
1716 | PerlIOBuf_get_cnt(PerlIO *f) |
1717 | { | |
1718 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1719 | if (!b->buf) | |
06da4f11 | 1720 | PerlIO_get_base(f); |
9e353e3b NIS |
1721 | if (PerlIOBase(f)->flags & PERLIO_F_RDBUF) |
1722 | return (b->end - b->ptr); | |
1723 | return 0; | |
1724 | } | |
1725 | ||
1726 | STDCHAR * | |
1727 | PerlIOBuf_get_base(PerlIO *f) | |
1728 | { | |
1729 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1730 | if (!b->buf) | |
06da4f11 NIS |
1731 | { |
1732 | if (!b->bufsiz) | |
1733 | b->bufsiz = 4096; | |
1734 | New('B',b->buf,b->bufsiz,STDCHAR); | |
1735 | if (!b->buf) | |
1736 | { | |
1737 | b->buf = (STDCHAR *)&b->oneword; | |
1738 | b->bufsiz = sizeof(b->oneword); | |
1739 | } | |
1740 | b->ptr = b->buf; | |
1741 | b->end = b->ptr; | |
1742 | } | |
9e353e3b NIS |
1743 | return b->buf; |
1744 | } | |
1745 | ||
1746 | Size_t | |
1747 | PerlIOBuf_bufsiz(PerlIO *f) | |
1748 | { | |
1749 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1750 | if (!b->buf) | |
06da4f11 | 1751 | PerlIO_get_base(f); |
9e353e3b NIS |
1752 | return (b->end - b->buf); |
1753 | } | |
1754 | ||
1755 | void | |
05d1247b | 1756 | PerlIOBuf_set_ptrcnt(PerlIO *f, STDCHAR *ptr, SSize_t cnt) |
9e353e3b NIS |
1757 | { |
1758 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1759 | if (!b->buf) | |
06da4f11 | 1760 | PerlIO_get_base(f); |
9e353e3b NIS |
1761 | b->ptr = ptr; |
1762 | if (PerlIO_get_cnt(f) != cnt || b->ptr < b->buf) | |
6f9d8c32 | 1763 | { |
9e353e3b NIS |
1764 | dTHX; |
1765 | assert(PerlIO_get_cnt(f) == cnt); | |
1766 | assert(b->ptr >= b->buf); | |
6f9d8c32 | 1767 | } |
9e353e3b | 1768 | PerlIOBase(f)->flags |= PERLIO_F_RDBUF; |
760ac839 LW |
1769 | } |
1770 | ||
9e353e3b NIS |
1771 | PerlIO_funcs PerlIO_perlio = { |
1772 | "perlio", | |
1773 | sizeof(PerlIOBuf), | |
1774 | 0, | |
1775 | PerlIOBase_fileno, | |
1776 | PerlIOBuf_fdopen, | |
1777 | PerlIOBuf_open, | |
c3d7c7c9 | 1778 | PerlIOBuf_reopen, |
06da4f11 NIS |
1779 | PerlIOBase_pushed, |
1780 | PerlIOBase_noop_ok, | |
9e353e3b NIS |
1781 | PerlIOBuf_read, |
1782 | PerlIOBuf_unread, | |
1783 | PerlIOBuf_write, | |
1784 | PerlIOBuf_seek, | |
1785 | PerlIOBuf_tell, | |
1786 | PerlIOBuf_close, | |
1787 | PerlIOBuf_flush, | |
06da4f11 | 1788 | PerlIOBuf_fill, |
9e353e3b NIS |
1789 | PerlIOBase_eof, |
1790 | PerlIOBase_error, | |
1791 | PerlIOBase_clearerr, | |
1792 | PerlIOBuf_setlinebuf, | |
1793 | PerlIOBuf_get_base, | |
1794 | PerlIOBuf_bufsiz, | |
1795 | PerlIOBuf_get_ptr, | |
1796 | PerlIOBuf_get_cnt, | |
1797 | PerlIOBuf_set_ptrcnt, | |
1798 | }; | |
1799 | ||
06da4f11 NIS |
1800 | #ifdef HAS_MMAP |
1801 | /*--------------------------------------------------------------------------------------*/ | |
1802 | /* mmap as "buffer" layer */ | |
1803 | ||
1804 | typedef struct | |
1805 | { | |
1806 | PerlIOBuf base; /* PerlIOBuf stuff */ | |
c3d7c7c9 | 1807 | Mmap_t mptr; /* Mapped address */ |
06da4f11 NIS |
1808 | Size_t len; /* mapped length */ |
1809 | STDCHAR *bbuf; /* malloced buffer if map fails */ | |
c3d7c7c9 | 1810 | |
06da4f11 NIS |
1811 | } PerlIOMmap; |
1812 | ||
c3d7c7c9 NIS |
1813 | static size_t page_size = 0; |
1814 | ||
06da4f11 NIS |
1815 | IV |
1816 | PerlIOMmap_map(PerlIO *f) | |
1817 | { | |
68d873c6 | 1818 | dTHX; |
06da4f11 NIS |
1819 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); |
1820 | PerlIOBuf *b = &m->base; | |
1821 | IV flags = PerlIOBase(f)->flags; | |
1822 | IV code = 0; | |
1823 | if (m->len) | |
1824 | abort(); | |
1825 | if (flags & PERLIO_F_CANREAD) | |
1826 | { | |
1827 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
1828 | int fd = PerlIO_fileno(f); | |
1829 | struct stat st; | |
1830 | code = fstat(fd,&st); | |
1831 | if (code == 0 && S_ISREG(st.st_mode)) | |
1832 | { | |
1833 | SSize_t len = st.st_size - b->posn; | |
1834 | if (len > 0) | |
1835 | { | |
c3d7c7c9 | 1836 | Off_t posn; |
68d873c6 JH |
1837 | if (!page_size) { |
1838 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_PAGE_SIZE)) | |
1839 | { | |
1840 | SETERRNO(0,SS$_NORMAL); | |
1841 | # ifdef _SC_PAGESIZE | |
1842 | page_size = sysconf(_SC_PAGESIZE); | |
1843 | # else | |
1844 | page_size = sysconf(_SC_PAGE_SIZE); | |
14aaf8e8 | 1845 | # endif |
68d873c6 JH |
1846 | if ((long)page_size < 0) { |
1847 | if (errno) { | |
1848 | SV *error = ERRSV; | |
1849 | char *msg; | |
1850 | STRLEN n_a; | |
1851 | (void)SvUPGRADE(error, SVt_PV); | |
1852 | msg = SvPVx(error, n_a); | |
14aaf8e8 | 1853 | Perl_croak(aTHX_ "panic: sysconf: %s", msg); |
68d873c6 JH |
1854 | } |
1855 | else | |
14aaf8e8 | 1856 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); |
68d873c6 JH |
1857 | } |
1858 | } | |
1859 | #else | |
1860 | # ifdef HAS_GETPAGESIZE | |
c3d7c7c9 | 1861 | page_size = getpagesize(); |
68d873c6 JH |
1862 | # else |
1863 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
1864 | page_size = PAGESIZE; /* compiletime, bad */ | |
1865 | # endif | |
1866 | # endif | |
1867 | #endif | |
1868 | if ((IV)page_size <= 0) | |
14aaf8e8 | 1869 | Perl_croak(aTHX_ "panic: bad pagesize %"IVdf, (IV)page_size); |
68d873c6 | 1870 | } |
c3d7c7c9 NIS |
1871 | if (b->posn < 0) |
1872 | { | |
1873 | /* This is a hack - should never happen - open should have set it ! */ | |
1874 | b->posn = PerlIO_tell(PerlIONext(f)); | |
1875 | } | |
1876 | posn = (b->posn / page_size) * page_size; | |
1877 | len = st.st_size - posn; | |
1878 | m->mptr = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, posn); | |
1879 | if (m->mptr && m->mptr != (Mmap_t) -1) | |
06da4f11 NIS |
1880 | { |
1881 | #if defined(HAS_MADVISE) && defined(MADV_SEQUENTIAL) | |
c3d7c7c9 | 1882 | madvise(m->mptr, len, MADV_SEQUENTIAL); |
06da4f11 | 1883 | #endif |
c3d7c7c9 NIS |
1884 | PerlIOBase(f)->flags = (flags & ~PERLIO_F_EOF) | PERLIO_F_RDBUF; |
1885 | b->end = ((STDCHAR *)m->mptr) + len; | |
1886 | b->buf = ((STDCHAR *)m->mptr) + (b->posn - posn); | |
1887 | b->ptr = b->buf; | |
1888 | m->len = len; | |
06da4f11 NIS |
1889 | } |
1890 | else | |
1891 | { | |
1892 | b->buf = NULL; | |
1893 | } | |
1894 | } | |
1895 | else | |
1896 | { | |
1897 | PerlIOBase(f)->flags = flags | PERLIO_F_EOF | PERLIO_F_RDBUF; | |
1898 | b->buf = NULL; | |
1899 | b->ptr = b->end = b->ptr; | |
1900 | code = -1; | |
1901 | } | |
1902 | } | |
1903 | } | |
1904 | return code; | |
1905 | } | |
1906 | ||
1907 | IV | |
1908 | PerlIOMmap_unmap(PerlIO *f) | |
1909 | { | |
1910 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1911 | PerlIOBuf *b = &m->base; | |
1912 | IV code = 0; | |
1913 | if (m->len) | |
1914 | { | |
1915 | if (b->buf) | |
1916 | { | |
c3d7c7c9 NIS |
1917 | code = munmap(m->mptr, m->len); |
1918 | b->buf = NULL; | |
1919 | m->len = 0; | |
1920 | m->mptr = NULL; | |
06da4f11 NIS |
1921 | if (PerlIO_seek(PerlIONext(f),b->posn,SEEK_SET) != 0) |
1922 | code = -1; | |
06da4f11 NIS |
1923 | } |
1924 | b->ptr = b->end = b->buf; | |
1925 | PerlIOBase(f)->flags &= ~(PERLIO_F_RDBUF|PERLIO_F_WRBUF); | |
1926 | } | |
1927 | return code; | |
1928 | } | |
1929 | ||
1930 | STDCHAR * | |
1931 | PerlIOMmap_get_base(PerlIO *f) | |
1932 | { | |
1933 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1934 | PerlIOBuf *b = &m->base; | |
1935 | if (b->buf && (PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
1936 | { | |
1937 | /* Already have a readbuffer in progress */ | |
1938 | return b->buf; | |
1939 | } | |
1940 | if (b->buf) | |
1941 | { | |
1942 | /* We have a write buffer or flushed PerlIOBuf read buffer */ | |
1943 | m->bbuf = b->buf; /* save it in case we need it again */ | |
1944 | b->buf = NULL; /* Clear to trigger below */ | |
1945 | } | |
1946 | if (!b->buf) | |
1947 | { | |
1948 | PerlIOMmap_map(f); /* Try and map it */ | |
1949 | if (!b->buf) | |
1950 | { | |
1951 | /* Map did not work - recover PerlIOBuf buffer if we have one */ | |
1952 | b->buf = m->bbuf; | |
1953 | } | |
1954 | } | |
1955 | b->ptr = b->end = b->buf; | |
1956 | if (b->buf) | |
1957 | return b->buf; | |
1958 | return PerlIOBuf_get_base(f); | |
1959 | } | |
1960 | ||
1961 | SSize_t | |
1962 | PerlIOMmap_unread(PerlIO *f, const void *vbuf, Size_t count) | |
1963 | { | |
1964 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1965 | PerlIOBuf *b = &m->base; | |
1966 | if (PerlIOBase(f)->flags & PERLIO_F_WRBUF) | |
1967 | PerlIO_flush(f); | |
1968 | if (b->ptr && (b->ptr - count) >= b->buf && memEQ(b->ptr - count,vbuf,count)) | |
1969 | { | |
1970 | b->ptr -= count; | |
1971 | PerlIOBase(f)->flags &= ~ PERLIO_F_EOF; | |
1972 | return count; | |
1973 | } | |
1974 | if (m->len) | |
1975 | { | |
4a4a6116 | 1976 | /* Loose the unwritable mapped buffer */ |
06da4f11 | 1977 | PerlIO_flush(f); |
c3d7c7c9 NIS |
1978 | /* If flush took the "buffer" see if we have one from before */ |
1979 | if (!b->buf && m->bbuf) | |
1980 | b->buf = m->bbuf; | |
1981 | if (!b->buf) | |
1982 | { | |
1983 | PerlIOBuf_get_base(f); | |
1984 | m->bbuf = b->buf; | |
1985 | } | |
06da4f11 NIS |
1986 | } |
1987 | return PerlIOBuf_unread(f,vbuf,count); | |
1988 | } | |
1989 | ||
1990 | SSize_t | |
1991 | PerlIOMmap_write(PerlIO *f, const void *vbuf, Size_t count) | |
1992 | { | |
1993 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
1994 | PerlIOBuf *b = &m->base; | |
1995 | if (!b->buf || !(PerlIOBase(f)->flags & PERLIO_F_WRBUF)) | |
1996 | { | |
1997 | /* No, or wrong sort of, buffer */ | |
1998 | if (m->len) | |
1999 | { | |
2000 | if (PerlIOMmap_unmap(f) != 0) | |
2001 | return 0; | |
2002 | } | |
2003 | /* If unmap took the "buffer" see if we have one from before */ | |
2004 | if (!b->buf && m->bbuf) | |
2005 | b->buf = m->bbuf; | |
2006 | if (!b->buf) | |
2007 | { | |
2008 | PerlIOBuf_get_base(f); | |
2009 | m->bbuf = b->buf; | |
2010 | } | |
2011 | } | |
2012 | return PerlIOBuf_write(f,vbuf,count); | |
2013 | } | |
2014 | ||
2015 | IV | |
2016 | PerlIOMmap_flush(PerlIO *f) | |
2017 | { | |
2018 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
2019 | PerlIOBuf *b = &m->base; | |
2020 | IV code = PerlIOBuf_flush(f); | |
2021 | /* Now we are "synced" at PerlIOBuf level */ | |
2022 | if (b->buf) | |
2023 | { | |
2024 | if (m->len) | |
2025 | { | |
2026 | /* Unmap the buffer */ | |
2027 | if (PerlIOMmap_unmap(f) != 0) | |
2028 | code = -1; | |
2029 | } | |
2030 | else | |
2031 | { | |
2032 | /* We seem to have a PerlIOBuf buffer which was not mapped | |
2033 | * remember it in case we need one later | |
2034 | */ | |
2035 | m->bbuf = b->buf; | |
2036 | } | |
2037 | } | |
06da4f11 NIS |
2038 | return code; |
2039 | } | |
2040 | ||
2041 | IV | |
2042 | PerlIOMmap_fill(PerlIO *f) | |
2043 | { | |
2044 | PerlIOBuf *b = PerlIOSelf(f,PerlIOBuf); | |
2045 | IV code = PerlIO_flush(f); | |
06da4f11 NIS |
2046 | if (code == 0 && !b->buf) |
2047 | { | |
2048 | code = PerlIOMmap_map(f); | |
06da4f11 NIS |
2049 | } |
2050 | if (code == 0 && !(PerlIOBase(f)->flags & PERLIO_F_RDBUF)) | |
2051 | { | |
2052 | code = PerlIOBuf_fill(f); | |
06da4f11 NIS |
2053 | } |
2054 | return code; | |
2055 | } | |
2056 | ||
2057 | IV | |
2058 | PerlIOMmap_close(PerlIO *f) | |
2059 | { | |
2060 | PerlIOMmap *m = PerlIOSelf(f,PerlIOMmap); | |
2061 | PerlIOBuf *b = &m->base; | |
2062 | IV code = PerlIO_flush(f); | |
2063 | if (m->bbuf) | |
2064 | { | |
2065 | b->buf = m->bbuf; | |
2066 | m->bbuf = NULL; | |
2067 | b->ptr = b->end = b->buf; | |
2068 | } | |
2069 | if (PerlIOBuf_close(f) != 0) | |
2070 | code = -1; | |
06da4f11 NIS |
2071 | return code; |
2072 | } | |
2073 | ||
2074 | ||
2075 | PerlIO_funcs PerlIO_mmap = { | |
2076 | "mmap", | |
2077 | sizeof(PerlIOMmap), | |
2078 | 0, | |
2079 | PerlIOBase_fileno, | |
2080 | PerlIOBuf_fdopen, | |
2081 | PerlIOBuf_open, | |
c3d7c7c9 | 2082 | PerlIOBuf_reopen, |
06da4f11 NIS |
2083 | PerlIOBase_pushed, |
2084 | PerlIOBase_noop_ok, | |
2085 | PerlIOBuf_read, | |
2086 | PerlIOMmap_unread, | |
2087 | PerlIOMmap_write, | |
2088 | PerlIOBuf_seek, | |
2089 | PerlIOBuf_tell, | |
2090 | PerlIOBuf_close, | |
2091 | PerlIOMmap_flush, | |
2092 | PerlIOMmap_fill, | |
2093 | PerlIOBase_eof, | |
2094 | PerlIOBase_error, | |
2095 | PerlIOBase_clearerr, | |
2096 | PerlIOBuf_setlinebuf, | |
2097 | PerlIOMmap_get_base, | |
2098 | PerlIOBuf_bufsiz, | |
2099 | PerlIOBuf_get_ptr, | |
2100 | PerlIOBuf_get_cnt, | |
2101 | PerlIOBuf_set_ptrcnt, | |
2102 | }; | |
2103 | ||
2104 | #endif /* HAS_MMAP */ | |
2105 | ||
9e353e3b NIS |
2106 | void |
2107 | PerlIO_init(void) | |
760ac839 | 2108 | { |
9e353e3b | 2109 | if (!_perlio) |
6f9d8c32 | 2110 | { |
9e353e3b | 2111 | atexit(&PerlIO_cleanup); |
6f9d8c32 | 2112 | } |
760ac839 LW |
2113 | } |
2114 | ||
9e353e3b NIS |
2115 | #undef PerlIO_stdin |
2116 | PerlIO * | |
2117 | PerlIO_stdin(void) | |
2118 | { | |
2119 | if (!_perlio) | |
f3862f8b | 2120 | PerlIO_stdstreams(); |
05d1247b | 2121 | return &_perlio[1]; |
9e353e3b NIS |
2122 | } |
2123 | ||
2124 | #undef PerlIO_stdout | |
2125 | PerlIO * | |
2126 | PerlIO_stdout(void) | |
2127 | { | |
2128 | if (!_perlio) | |
f3862f8b | 2129 | PerlIO_stdstreams(); |
05d1247b | 2130 | return &_perlio[2]; |
9e353e3b NIS |
2131 | } |
2132 | ||
2133 | #undef PerlIO_stderr | |
2134 | PerlIO * | |
2135 | PerlIO_stderr(void) | |
2136 | { | |
2137 | if (!_perlio) | |
f3862f8b | 2138 | PerlIO_stdstreams(); |
05d1247b | 2139 | return &_perlio[3]; |
9e353e3b NIS |
2140 | } |
2141 | ||
2142 | /*--------------------------------------------------------------------------------------*/ | |
2143 | ||
2144 | #undef PerlIO_getname | |
2145 | char * | |
2146 | PerlIO_getname(PerlIO *f, char *buf) | |
2147 | { | |
2148 | dTHX; | |
2149 | Perl_croak(aTHX_ "Don't know how to get file name"); | |
2150 | return NULL; | |
2151 | } | |
2152 | ||
2153 | ||
2154 | /*--------------------------------------------------------------------------------------*/ | |
2155 | /* Functions which can be called on any kind of PerlIO implemented | |
2156 | in terms of above | |
2157 | */ | |
2158 | ||
2159 | #undef PerlIO_getc | |
6f9d8c32 | 2160 | int |
9e353e3b | 2161 | PerlIO_getc(PerlIO *f) |
760ac839 | 2162 | { |
313ca112 NIS |
2163 | STDCHAR buf[1]; |
2164 | SSize_t count = PerlIO_read(f,buf,1); | |
9e353e3b | 2165 | if (count == 1) |
313ca112 NIS |
2166 | { |
2167 | return (unsigned char) buf[0]; | |
2168 | } | |
2169 | return EOF; | |
2170 | } | |
2171 | ||
2172 | #undef PerlIO_ungetc | |
2173 | int | |
2174 | PerlIO_ungetc(PerlIO *f, int ch) | |
2175 | { | |
2176 | if (ch != EOF) | |
2177 | { | |
2178 | STDCHAR buf = ch; | |
2179 | if (PerlIO_unread(f,&buf,1) == 1) | |
2180 | return ch; | |
2181 | } | |
2182 | return EOF; | |
760ac839 LW |
2183 | } |
2184 | ||
9e353e3b NIS |
2185 | #undef PerlIO_putc |
2186 | int | |
2187 | PerlIO_putc(PerlIO *f, int ch) | |
760ac839 | 2188 | { |
9e353e3b NIS |
2189 | STDCHAR buf = ch; |
2190 | return PerlIO_write(f,&buf,1); | |
760ac839 LW |
2191 | } |
2192 | ||
9e353e3b | 2193 | #undef PerlIO_puts |
760ac839 | 2194 | int |
9e353e3b | 2195 | PerlIO_puts(PerlIO *f, const char *s) |
760ac839 | 2196 | { |
9e353e3b NIS |
2197 | STRLEN len = strlen(s); |
2198 | return PerlIO_write(f,s,len); | |
760ac839 LW |
2199 | } |
2200 | ||
2201 | #undef PerlIO_rewind | |
2202 | void | |
c78749f2 | 2203 | PerlIO_rewind(PerlIO *f) |
760ac839 | 2204 | { |
6f9d8c32 | 2205 | PerlIO_seek(f,(Off_t)0,SEEK_SET); |
9e353e3b | 2206 | PerlIO_clearerr(f); |
6f9d8c32 NIS |
2207 | } |
2208 | ||
2209 | #undef PerlIO_vprintf | |
2210 | int | |
2211 | PerlIO_vprintf(PerlIO *f, const char *fmt, va_list ap) | |
2212 | { | |
2213 | dTHX; | |
bb9950b7 | 2214 | SV *sv = newSVpvn("",0); |
6f9d8c32 NIS |
2215 | char *s; |
2216 | STRLEN len; | |
2217 | sv_vcatpvf(sv, fmt, &ap); | |
2218 | s = SvPV(sv,len); | |
bb9950b7 | 2219 | return PerlIO_write(f,s,len); |
760ac839 LW |
2220 | } |
2221 | ||
2222 | #undef PerlIO_printf | |
6f9d8c32 | 2223 | int |
760ac839 | 2224 | PerlIO_printf(PerlIO *f,const char *fmt,...) |
760ac839 LW |
2225 | { |
2226 | va_list ap; | |
2227 | int result; | |
760ac839 | 2228 | va_start(ap,fmt); |
6f9d8c32 | 2229 | result = PerlIO_vprintf(f,fmt,ap); |
760ac839 LW |
2230 | va_end(ap); |
2231 | return result; | |
2232 | } | |
2233 | ||
2234 | #undef PerlIO_stdoutf | |
6f9d8c32 | 2235 | int |
760ac839 | 2236 | PerlIO_stdoutf(const char *fmt,...) |
760ac839 LW |
2237 | { |
2238 | va_list ap; | |
2239 | int result; | |
760ac839 | 2240 | va_start(ap,fmt); |
760ac839 LW |
2241 | result = PerlIO_vprintf(PerlIO_stdout(),fmt,ap); |
2242 | va_end(ap); | |
2243 | return result; | |
2244 | } | |
2245 | ||
2246 | #undef PerlIO_tmpfile | |
2247 | PerlIO * | |
c78749f2 | 2248 | PerlIO_tmpfile(void) |
760ac839 | 2249 | { |
6f9d8c32 | 2250 | dTHX; |
b1ef6e3b | 2251 | /* I have no idea how portable mkstemp() is ... */ |
6f9d8c32 NIS |
2252 | SV *sv = newSVpv("/tmp/PerlIO_XXXXXX",0); |
2253 | int fd = mkstemp(SvPVX(sv)); | |
2254 | PerlIO *f = NULL; | |
2255 | if (fd >= 0) | |
2256 | { | |
b1ef6e3b | 2257 | f = PerlIO_fdopen(fd,"w+"); |
6f9d8c32 NIS |
2258 | if (f) |
2259 | { | |
9e353e3b | 2260 | PerlIOBase(f)->flags |= PERLIO_F_TEMP; |
6f9d8c32 | 2261 | } |
00b02797 | 2262 | PerlLIO_unlink(SvPVX(sv)); |
6f9d8c32 NIS |
2263 | SvREFCNT_dec(sv); |
2264 | } | |
2265 | return f; | |
760ac839 LW |
2266 | } |
2267 | ||
6f9d8c32 NIS |
2268 | #undef HAS_FSETPOS |
2269 | #undef HAS_FGETPOS | |
2270 | ||
760ac839 LW |
2271 | #endif /* USE_SFIO */ |
2272 | #endif /* PERLIO_IS_STDIO */ | |
2273 | ||
9e353e3b NIS |
2274 | /*======================================================================================*/ |
2275 | /* Now some functions in terms of above which may be needed even if | |
2276 | we are not in true PerlIO mode | |
2277 | */ | |
2278 | ||
760ac839 LW |
2279 | #ifndef HAS_FSETPOS |
2280 | #undef PerlIO_setpos | |
2281 | int | |
c78749f2 | 2282 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
760ac839 | 2283 | { |
6f9d8c32 | 2284 | return PerlIO_seek(f,*pos,0); |
760ac839 | 2285 | } |
c411622e | 2286 | #else |
2287 | #ifndef PERLIO_IS_STDIO | |
2288 | #undef PerlIO_setpos | |
2289 | int | |
c78749f2 | 2290 | PerlIO_setpos(PerlIO *f, const Fpos_t *pos) |
c411622e | 2291 | { |
2d4389e4 | 2292 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
2293 | return fsetpos64(f, pos); |
2294 | #else | |
c411622e | 2295 | return fsetpos(f, pos); |
d9b3e12d | 2296 | #endif |
c411622e | 2297 | } |
2298 | #endif | |
760ac839 LW |
2299 | #endif |
2300 | ||
2301 | #ifndef HAS_FGETPOS | |
2302 | #undef PerlIO_getpos | |
2303 | int | |
c78749f2 | 2304 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
760ac839 LW |
2305 | { |
2306 | *pos = PerlIO_tell(f); | |
a17c7222 | 2307 | return *pos == -1 ? -1 : 0; |
760ac839 | 2308 | } |
c411622e | 2309 | #else |
2310 | #ifndef PERLIO_IS_STDIO | |
2311 | #undef PerlIO_getpos | |
2312 | int | |
c78749f2 | 2313 | PerlIO_getpos(PerlIO *f, Fpos_t *pos) |
c411622e | 2314 | { |
2d4389e4 | 2315 | #if defined(USE_64_BIT_STDIO) && defined(USE_FSETPOS64) |
d9b3e12d JH |
2316 | return fgetpos64(f, pos); |
2317 | #else | |
c411622e | 2318 | return fgetpos(f, pos); |
d9b3e12d | 2319 | #endif |
c411622e | 2320 | } |
2321 | #endif | |
760ac839 LW |
2322 | #endif |
2323 | ||
2324 | #if (defined(PERLIO_IS_STDIO) || !defined(USE_SFIO)) && !defined(HAS_VPRINTF) | |
2325 | ||
2326 | int | |
c78749f2 | 2327 | vprintf(char *pat, char *args) |
662a7e3f CS |
2328 | { |
2329 | _doprnt(pat, args, stdout); | |
2330 | return 0; /* wrong, but perl doesn't use the return value */ | |
2331 | } | |
2332 | ||
2333 | int | |
c78749f2 | 2334 | vfprintf(FILE *fd, char *pat, char *args) |
760ac839 LW |
2335 | { |
2336 | _doprnt(pat, args, fd); | |
2337 | return 0; /* wrong, but perl doesn't use the return value */ | |
2338 | } | |
2339 | ||
2340 | #endif | |
2341 | ||
2342 | #ifndef PerlIO_vsprintf | |
6f9d8c32 | 2343 | int |
8ac85365 | 2344 | PerlIO_vsprintf(char *s, int n, const char *fmt, va_list ap) |
760ac839 LW |
2345 | { |
2346 | int val = vsprintf(s, fmt, ap); | |
2347 | if (n >= 0) | |
2348 | { | |
8c86a920 | 2349 | if (strlen(s) >= (STRLEN)n) |
760ac839 | 2350 | { |
bf49b057 | 2351 | dTHX; |
fb4a9925 JH |
2352 | (void)PerlIO_puts(Perl_error_log, |
2353 | "panic: sprintf overflow - memory corrupted!\n"); | |
bf49b057 | 2354 | my_exit(1); |
760ac839 LW |
2355 | } |
2356 | } | |
2357 | return val; | |
2358 | } | |
2359 | #endif | |
2360 | ||
2361 | #ifndef PerlIO_sprintf | |
6f9d8c32 | 2362 | int |
760ac839 | 2363 | PerlIO_sprintf(char *s, int n, const char *fmt,...) |
760ac839 LW |
2364 | { |
2365 | va_list ap; | |
2366 | int result; | |
760ac839 | 2367 | va_start(ap,fmt); |
760ac839 LW |
2368 | result = PerlIO_vsprintf(s, n, fmt, ap); |
2369 | va_end(ap); | |
2370 | return result; | |
2371 | } | |
2372 | #endif | |
2373 | ||
c5be433b GS |
2374 | #endif /* !PERL_IMPLICIT_SYS */ |
2375 |