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cf7fe8a2 |
1 | /* |
2 | * Copyright (c) 1997-8 Graham Barr <gbarr@pobox.com>. All rights reserved. |
3 | * This program is free software; you can redistribute it and/or |
4 | * modify it under the same terms as Perl itself. |
5 | */ |
6 | |
c5be433b |
7 | #define PERL_NO_GET_CONTEXT |
8add82fc |
8 | #include "EXTERN.h" |
760ac839 |
9 | #define PERLIO_NOT_STDIO 1 |
8add82fc |
10 | #include "perl.h" |
11 | #include "XSUB.h" |
cf7fe8a2 |
12 | #include "poll.h" |
8add82fc |
13 | #ifdef I_UNISTD |
14 | # include <unistd.h> |
15 | #endif |
cf7fe8a2 |
16 | #if defined(I_FCNTL) || defined(HAS_FCNTL) |
760ac839 |
17 | # include <fcntl.h> |
18 | #endif |
8add82fc |
19 | |
63a347c7 |
20 | #ifndef SIOCATMARK |
21 | # ifdef I_SYS_SOCKIO |
22 | # include <sys/sockio.h> |
23 | # endif |
24 | #endif |
25 | |
2a0cf753 |
26 | #ifdef PerlIO |
8add82fc |
27 | typedef int SysRet; |
760ac839 |
28 | typedef PerlIO * InputStream; |
29 | typedef PerlIO * OutputStream; |
2a0cf753 |
30 | #else |
31 | #define PERLIO_IS_STDIO 1 |
32 | typedef int SysRet; |
33 | typedef FILE * InputStream; |
34 | typedef FILE * OutputStream; |
35 | #endif |
8add82fc |
36 | |
cceca5ed |
37 | #define MY_start_subparse(fmt,flags) start_subparse(fmt,flags) |
cf7fe8a2 |
38 | |
39 | #ifndef gv_stashpvn |
40 | #define gv_stashpvn(str,len,flags) gv_stashpv(str,flags) |
41 | #endif |
42 | |
8add82fc |
43 | static int |
a1ea39dc |
44 | not_here(char *s) |
8add82fc |
45 | { |
46 | croak("%s not implemented on this architecture", s); |
47 | return -1; |
48 | } |
49 | |
cf7fe8a2 |
50 | |
51 | #ifndef PerlIO |
52 | #define PerlIO_fileno(f) fileno(f) |
8add82fc |
53 | #endif |
cf7fe8a2 |
54 | |
55 | static int |
a1ea39dc |
56 | io_blocking(InputStream f, int block) |
cf7fe8a2 |
57 | { |
58 | int RETVAL; |
59 | if(!f) { |
60 | errno = EBADF; |
61 | return -1; |
62 | } |
63 | #if defined(HAS_FCNTL) |
64 | RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0); |
65 | if (RETVAL >= 0) { |
66 | int mode = RETVAL; |
67 | #ifdef O_NONBLOCK |
766a733e |
68 | /* POSIX style */ |
cf7fe8a2 |
69 | #if defined(O_NDELAY) && O_NDELAY != O_NONBLOCK |
766a733e |
70 | /* Ooops has O_NDELAY too - make sure we don't |
6fd254a4 |
71 | * get SysV behaviour by mistake. */ |
cf7fe8a2 |
72 | |
6fd254a4 |
73 | /* E.g. In UNICOS and UNICOS/mk a F_GETFL returns an O_NDELAY |
74 | * after a successful F_SETFL of an O_NONBLOCK. */ |
75 | RETVAL = RETVAL & (O_NONBLOCK | O_NDELAY) ? 0 : 1; |
76 | |
77 | if (block >= 0) { |
78 | if ((mode & O_NDELAY) || ((block == 0) && !(mode & O_NONBLOCK))) { |
79 | int ret; |
80 | mode = (mode & ~O_NDELAY) | O_NONBLOCK; |
81 | ret = fcntl(PerlIO_fileno(f),F_SETFL,mode); |
82 | if(ret < 0) |
83 | RETVAL = ret; |
84 | } |
85 | else |
86 | if ((mode & O_NDELAY) || ((block > 0) && (mode & O_NONBLOCK))) { |
87 | int ret; |
88 | mode &= ~(O_NONBLOCK | O_NDELAY); |
89 | ret = fcntl(PerlIO_fileno(f),F_SETFL,mode); |
90 | if(ret < 0) |
91 | RETVAL = ret; |
92 | } |
cf7fe8a2 |
93 | } |
8add82fc |
94 | #else |
766a733e |
95 | /* Standard POSIX */ |
cf7fe8a2 |
96 | RETVAL = RETVAL & O_NONBLOCK ? 0 : 1; |
97 | |
98 | if ((block == 0) && !(mode & O_NONBLOCK)) { |
99 | int ret; |
100 | mode |= O_NONBLOCK; |
101 | ret = fcntl(PerlIO_fileno(f),F_SETFL,mode); |
102 | if(ret < 0) |
103 | RETVAL = ret; |
104 | } |
105 | else if ((block > 0) && (mode & O_NONBLOCK)) { |
106 | int ret; |
107 | mode &= ~O_NONBLOCK; |
108 | ret = fcntl(PerlIO_fileno(f),F_SETFL,mode); |
109 | if(ret < 0) |
110 | RETVAL = ret; |
111 | } |
766a733e |
112 | #endif |
8add82fc |
113 | #else |
cf7fe8a2 |
114 | /* Not POSIX - better have O_NDELAY or we can't cope. |
115 | * for BSD-ish machines this is an acceptable alternative |
766a733e |
116 | * for SysV we can't tell "would block" from EOF but that is |
cf7fe8a2 |
117 | * the way SysV is... |
118 | */ |
119 | RETVAL = RETVAL & O_NDELAY ? 0 : 1; |
120 | |
121 | if ((block == 0) && !(mode & O_NDELAY)) { |
122 | int ret; |
123 | mode |= O_NDELAY; |
124 | ret = fcntl(PerlIO_fileno(f),F_SETFL,mode); |
125 | if(ret < 0) |
126 | RETVAL = ret; |
127 | } |
128 | else if ((block > 0) && (mode & O_NDELAY)) { |
129 | int ret; |
130 | mode &= ~O_NDELAY; |
131 | ret = fcntl(PerlIO_fileno(f),F_SETFL,mode); |
132 | if(ret < 0) |
133 | RETVAL = ret; |
134 | } |
8add82fc |
135 | #endif |
cf7fe8a2 |
136 | } |
137 | return RETVAL; |
8add82fc |
138 | #else |
cf7fe8a2 |
139 | return -1; |
8add82fc |
140 | #endif |
8add82fc |
141 | } |
142 | |
8add82fc |
143 | MODULE = IO PACKAGE = IO::Seekable PREFIX = f |
144 | |
8063af02 |
145 | void |
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146 | fgetpos(handle) |
147 | InputStream handle |
148 | CODE: |
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149 | if (handle) { |
2a0cf753 |
150 | #ifdef PerlIO |
766a733e |
151 | ST(0) = sv_2mortal(newSV(0)); |
152 | if (PerlIO_getpos(handle, ST(0)) != 0) { |
153 | ST(0) = &PL_sv_undef; |
154 | } |
2a0cf753 |
155 | #else |
766a733e |
156 | if (fgetpos(handle, &pos)) { |
a6a714bd |
157 | ST(0) = &PL_sv_undef; |
158 | } else { |
159 | ST(0) = sv_2mortal(newSVpv((char*)&pos, sizeof(Fpos_t))); |
160 | } |
766a733e |
161 | #endif |
8add82fc |
162 | } |
163 | else { |
a1ea39dc |
164 | ST(0) = &PL_sv_undef; |
8add82fc |
165 | errno = EINVAL; |
166 | } |
8add82fc |
167 | |
168 | SysRet |
169 | fsetpos(handle, pos) |
170 | InputStream handle |
171 | SV * pos |
172 | CODE: |
766a733e |
173 | if (handle) { |
2a0cf753 |
174 | #ifdef PerlIO |
766a733e |
175 | RETVAL = PerlIO_setpos(handle, pos); |
2a0cf753 |
176 | #else |
766a733e |
177 | char *p; |
178 | STRLEN len; |
179 | if ((p = SvPV(pos,len)) && len == sizeof(Fpos_t)) { |
180 | RETVAL = fsetpos(handle, (Fpos_t*)p); |
181 | } |
182 | else { |
183 | RETVAL = -1; |
184 | errno = EINVAL; |
185 | } |
2a0cf753 |
186 | #endif |
766a733e |
187 | } |
8add82fc |
188 | else { |
189 | RETVAL = -1; |
190 | errno = EINVAL; |
191 | } |
8add82fc |
192 | OUTPUT: |
193 | RETVAL |
194 | |
195 | MODULE = IO PACKAGE = IO::File PREFIX = f |
196 | |
8063af02 |
197 | void |
8add82fc |
198 | new_tmpfile(packname = "IO::File") |
199 | char * packname |
a375a877 |
200 | PREINIT: |
201 | OutputStream fp; |
202 | GV *gv; |
8add82fc |
203 | CODE: |
2a0cf753 |
204 | #ifdef PerlIO |
a375a877 |
205 | fp = PerlIO_tmpfile(); |
2a0cf753 |
206 | #else |
a375a877 |
207 | fp = tmpfile(); |
2a0cf753 |
208 | #endif |
a375a877 |
209 | gv = (GV*)SvREFCNT_inc(newGVgen(packname)); |
210 | hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD); |
211 | if (do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) { |
6d5cdeed |
212 | ST(0) = sv_2mortal(newRV((SV*)gv)); |
a375a877 |
213 | sv_bless(ST(0), gv_stashpv(packname, TRUE)); |
cf7fe8a2 |
214 | SvREFCNT_dec(gv); /* undo increment in newRV() */ |
a375a877 |
215 | } |
216 | else { |
a1ea39dc |
217 | ST(0) = &PL_sv_undef; |
a375a877 |
218 | SvREFCNT_dec(gv); |
219 | } |
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220 | |
cf7fe8a2 |
221 | MODULE = IO PACKAGE = IO::Poll |
222 | |
766a733e |
223 | void |
cf7fe8a2 |
224 | _poll(timeout,...) |
225 | int timeout; |
226 | PPCODE: |
227 | { |
228 | #ifdef HAS_POLL |
229 | int nfd = (items - 1) / 2; |
230 | SV *tmpsv = NEWSV(999,nfd * sizeof(struct pollfd)); |
231 | struct pollfd *fds = (struct pollfd *)SvPVX(tmpsv); |
232 | int i,j,ret; |
233 | for(i=1, j=0 ; j < nfd ; j++) { |
234 | fds[j].fd = SvIV(ST(i)); |
235 | i++; |
236 | fds[j].events = SvIV(ST(i)); |
237 | i++; |
238 | fds[j].revents = 0; |
239 | } |
240 | if((ret = poll(fds,nfd,timeout)) >= 0) { |
241 | for(i=1, j=0 ; j < nfd ; j++) { |
242 | sv_setiv(ST(i), fds[j].fd); i++; |
243 | sv_setiv(ST(i), fds[j].revents); i++; |
244 | } |
245 | } |
246 | SvREFCNT_dec(tmpsv); |
247 | XSRETURN_IV(ret); |
248 | #else |
249 | not_here("IO::Poll::poll"); |
250 | #endif |
251 | } |
252 | |
253 | MODULE = IO PACKAGE = IO::Handle PREFIX = io_ |
254 | |
255 | void |
256 | io_blocking(handle,blk=-1) |
257 | InputStream handle |
258 | int blk |
259 | PROTOTYPE: $;$ |
260 | CODE: |
261 | { |
262 | int ret = io_blocking(handle, items == 1 ? -1 : blk ? 1 : 0); |
263 | if(ret >= 0) |
264 | XSRETURN_IV(ret); |
265 | else |
266 | XSRETURN_UNDEF; |
267 | } |
268 | |
8add82fc |
269 | MODULE = IO PACKAGE = IO::Handle PREFIX = f |
270 | |
8add82fc |
271 | int |
272 | ungetc(handle, c) |
273 | InputStream handle |
274 | int c |
275 | CODE: |
276 | if (handle) |
2a0cf753 |
277 | #ifdef PerlIO |
760ac839 |
278 | RETVAL = PerlIO_ungetc(handle, c); |
2a0cf753 |
279 | #else |
280 | RETVAL = ungetc(c, handle); |
281 | #endif |
8add82fc |
282 | else { |
283 | RETVAL = -1; |
284 | errno = EINVAL; |
285 | } |
286 | OUTPUT: |
287 | RETVAL |
288 | |
289 | int |
290 | ferror(handle) |
291 | InputStream handle |
292 | CODE: |
293 | if (handle) |
2a0cf753 |
294 | #ifdef PerlIO |
760ac839 |
295 | RETVAL = PerlIO_error(handle); |
2a0cf753 |
296 | #else |
297 | RETVAL = ferror(handle); |
298 | #endif |
299 | else { |
300 | RETVAL = -1; |
301 | errno = EINVAL; |
302 | } |
303 | OUTPUT: |
304 | RETVAL |
305 | |
306 | int |
307 | clearerr(handle) |
308 | InputStream handle |
309 | CODE: |
310 | if (handle) { |
311 | #ifdef PerlIO |
312 | PerlIO_clearerr(handle); |
313 | #else |
314 | clearerr(handle); |
315 | #endif |
316 | RETVAL = 0; |
317 | } |
8add82fc |
318 | else { |
319 | RETVAL = -1; |
59629a13 |
320 | errno = EINVAL; |
321 | } |
322 | OUTPUT: |
323 | RETVAL |
324 | |
325 | int |
326 | untaint(handle) |
327 | SV * handle |
328 | CODE: |
7a4c00b4 |
329 | #ifdef IOf_UNTAINT |
59629a13 |
330 | IO * io; |
331 | io = sv_2io(handle); |
332 | if (io) { |
333 | IoFLAGS(io) |= IOf_UNTAINT; |
334 | RETVAL = 0; |
335 | } |
336 | else { |
7a4c00b4 |
337 | #endif |
59629a13 |
338 | RETVAL = -1; |
8add82fc |
339 | errno = EINVAL; |
7a4c00b4 |
340 | #ifdef IOf_UNTAINT |
8add82fc |
341 | } |
7a4c00b4 |
342 | #endif |
8add82fc |
343 | OUTPUT: |
344 | RETVAL |
345 | |
346 | SysRet |
347 | fflush(handle) |
348 | OutputStream handle |
349 | CODE: |
350 | if (handle) |
2a0cf753 |
351 | #ifdef PerlIO |
760ac839 |
352 | RETVAL = PerlIO_flush(handle); |
2a0cf753 |
353 | #else |
354 | RETVAL = Fflush(handle); |
355 | #endif |
8add82fc |
356 | else { |
357 | RETVAL = -1; |
358 | errno = EINVAL; |
359 | } |
360 | OUTPUT: |
361 | RETVAL |
362 | |
363 | void |
364 | setbuf(handle, buf) |
365 | OutputStream handle |
366 | char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), BUFSIZ) : 0; |
367 | CODE: |
368 | if (handle) |
760ac839 |
369 | #ifdef PERLIO_IS_STDIO |
8add82fc |
370 | setbuf(handle, buf); |
760ac839 |
371 | #else |
372 | not_here("IO::Handle::setbuf"); |
373 | #endif |
8add82fc |
374 | |
375 | SysRet |
376 | setvbuf(handle, buf, type, size) |
377 | OutputStream handle |
378 | char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0; |
379 | int type |
380 | int size |
381 | CODE: |
1eeb0f31 |
382 | #if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF) |
d924de76 |
383 | if (!handle) /* Try input stream. */ |
384 | handle = IoIFP(sv_2io(ST(0))); |
8add82fc |
385 | if (handle) |
386 | RETVAL = setvbuf(handle, buf, type, size); |
387 | else { |
388 | RETVAL = -1; |
389 | errno = EINVAL; |
390 | } |
391 | #else |
61839fa9 |
392 | RETVAL = (SysRet) not_here("IO::Handle::setvbuf"); |
760ac839 |
393 | #endif |
8add82fc |
394 | OUTPUT: |
395 | RETVAL |
396 | |
397 | |
cf7fe8a2 |
398 | SysRet |
399 | fsync(handle) |
400 | OutputStream handle |
401 | CODE: |
402 | #ifdef HAS_FSYNC |
403 | if(handle) |
404 | RETVAL = fsync(PerlIO_fileno(handle)); |
405 | else { |
406 | RETVAL = -1; |
407 | errno = EINVAL; |
408 | } |
409 | #else |
410 | RETVAL = (SysRet) not_here("IO::Handle::sync"); |
411 | #endif |
412 | OUTPUT: |
413 | RETVAL |
414 | |
415 | |
63a347c7 |
416 | MODULE = IO PACKAGE = IO::Socket |
417 | |
418 | SysRet |
419 | sockatmark (sock) |
420 | InputStream sock |
421 | PROTOTYPE: $ |
422 | PREINIT: |
423 | int fd,flag,result; |
424 | CODE: |
425 | { |
426 | fd = PerlIO_fileno(sock); |
427 | #ifdef HAS_SOCKATMARK |
428 | flag = sockatmark(fd); |
429 | #else |
430 | # ifdef SIOCATMARK |
431 | if (ioctl(fd, SIOCATMARK, &flag) != 0) |
432 | XSRETURN_UNDEF; |
433 | # else |
434 | not_here("IO::Socket::atmark"); |
435 | # endif |
436 | RETVAL = flag; |
437 | #endif |
438 | } |
439 | OUTPUT: |
440 | RETVAL |
441 | |
cf7fe8a2 |
442 | BOOT: |
443 | { |
444 | HV *stash; |
445 | /* |
446 | * constant subs for IO::Poll |
447 | */ |
448 | stash = gv_stashpvn("IO::Poll", 8, TRUE); |
449 | #ifdef POLLIN |
450 | newCONSTSUB(stash,"POLLIN",newSViv(POLLIN)); |
451 | #endif |
452 | #ifdef POLLPRI |
453 | newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI)); |
454 | #endif |
455 | #ifdef POLLOUT |
456 | newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT)); |
457 | #endif |
458 | #ifdef POLLRDNORM |
459 | newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM)); |
460 | #endif |
461 | #ifdef POLLWRNORM |
462 | newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM)); |
463 | #endif |
464 | #ifdef POLLRDBAND |
465 | newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND)); |
466 | #endif |
467 | #ifdef POLLWRBAND |
468 | newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND)); |
469 | #endif |
470 | #ifdef POLLNORM |
471 | newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM)); |
472 | #endif |
473 | #ifdef POLLERR |
474 | newCONSTSUB(stash,"POLLERR", newSViv(POLLERR)); |
475 | #endif |
476 | #ifdef POLLHUP |
477 | newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP)); |
478 | #endif |
479 | #ifdef POLLNVAL |
480 | newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL)); |
481 | #endif |
482 | /* |
483 | * constant subs for IO::Handle |
484 | */ |
485 | stash = gv_stashpvn("IO::Handle", 10, TRUE); |
486 | #ifdef _IOFBF |
487 | newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF)); |
488 | #endif |
489 | #ifdef _IOLBF |
490 | newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF)); |
491 | #endif |
492 | #ifdef _IONBF |
493 | newCONSTSUB(stash,"_IONBF", newSViv(_IONBF)); |
494 | #endif |
495 | #ifdef SEEK_SET |
496 | newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET)); |
497 | #endif |
498 | #ifdef SEEK_CUR |
499 | newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR)); |
500 | #endif |
501 | #ifdef SEEK_END |
502 | newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END)); |
503 | #endif |
cf7fe8a2 |
504 | } |
63a347c7 |
505 | |