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.
7 #define PERL_NO_GET_CONTEXT
9 #define PERLIO_NOT_STDIO 1
16 #if defined(I_FCNTL) || defined(HAS_FCNTL)
22 # include <sys/sockio.h>
28 typedef PerlIO * InputStream;
29 typedef PerlIO * OutputStream;
31 #define PERLIO_IS_STDIO 1
33 typedef FILE * InputStream;
34 typedef FILE * OutputStream;
37 #define MY_start_subparse(fmt,flags) start_subparse(fmt,flags)
40 #define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
46 croak("%s not implemented on this architecture", s);
52 #define PerlIO_fileno(f) fileno(f)
56 io_blocking(InputStream f, int block)
63 #if defined(HAS_FCNTL)
64 RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0);
69 #if defined(O_NDELAY) && O_NDELAY != O_NONBLOCK
70 /* Ooops has O_NDELAY too - make sure we don't
71 * get SysV behaviour by mistake. */
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;
78 if ((mode & O_NDELAY) || ((block == 0) && !(mode & O_NONBLOCK))) {
80 mode = (mode & ~O_NDELAY) | O_NONBLOCK;
81 ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
86 if ((mode & O_NDELAY) || ((block > 0) && (mode & O_NONBLOCK))) {
88 mode &= ~(O_NONBLOCK | O_NDELAY);
89 ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
96 RETVAL = RETVAL & O_NONBLOCK ? 0 : 1;
98 if ((block == 0) && !(mode & O_NONBLOCK)) {
101 ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
105 else if ((block > 0) && (mode & O_NONBLOCK)) {
108 ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
114 /* Not POSIX - better have O_NDELAY or we can't cope.
115 * for BSD-ish machines this is an acceptable alternative
116 * for SysV we can't tell "would block" from EOF but that is
119 RETVAL = RETVAL & O_NDELAY ? 0 : 1;
121 if ((block == 0) && !(mode & O_NDELAY)) {
124 ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
128 else if ((block > 0) && (mode & O_NDELAY)) {
131 ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
143 MODULE = IO PACKAGE = IO::Seekable PREFIX = f
151 ST(0) = sv_2mortal(newSV(0));
152 if (PerlIO_getpos(handle, ST(0)) != 0) {
153 ST(0) = &PL_sv_undef;
156 if (fgetpos(handle, &pos)) {
157 ST(0) = &PL_sv_undef;
159 ST(0) = sv_2mortal(newSVpv((char*)&pos, sizeof(Fpos_t)));
164 ST(0) = &PL_sv_undef;
175 RETVAL = PerlIO_setpos(handle, pos);
179 if ((p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
180 RETVAL = fsetpos(handle, (Fpos_t*)p);
195 MODULE = IO PACKAGE = IO::File PREFIX = f
198 new_tmpfile(packname = "IO::File")
205 fp = PerlIO_tmpfile();
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)) {
212 ST(0) = sv_2mortal(newRV((SV*)gv));
213 sv_bless(ST(0), gv_stashpv(packname, TRUE));
214 SvREFCNT_dec(gv); /* undo increment in newRV() */
217 ST(0) = &PL_sv_undef;
221 MODULE = IO PACKAGE = IO::Poll
229 int nfd = (items - 1) / 2;
230 SV *tmpsv = NEWSV(999,nfd * sizeof(struct pollfd));
231 struct pollfd *fds = (struct pollfd *)SvPVX(tmpsv);
233 for(i=1, j=0 ; j < nfd ; j++) {
234 fds[j].fd = SvIV(ST(i));
236 fds[j].events = SvIV(ST(i));
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++;
249 not_here("IO::Poll::poll");
253 MODULE = IO PACKAGE = IO::Handle PREFIX = io_
256 io_blocking(handle,blk=-1)
262 int ret = io_blocking(handle, items == 1 ? -1 : blk ? 1 : 0);
269 MODULE = IO PACKAGE = IO::Handle PREFIX = f
278 RETVAL = PerlIO_ungetc(handle, c);
280 RETVAL = ungetc(c, handle);
295 RETVAL = PerlIO_error(handle);
297 RETVAL = ferror(handle);
312 PerlIO_clearerr(handle);
333 IoFLAGS(io) |= IOf_UNTAINT;
352 RETVAL = PerlIO_flush(handle);
354 RETVAL = Fflush(handle);
368 #ifdef PERLIO_IS_STDIO
370 char *buf = items == 2 && SvPOK(ST(1)) ?
371 sv_grow(ST(1), BUFSIZ) : 0;
375 not_here("IO::Handle::setbuf");
382 Perl_croak(aTHX_ "Usage: IO::Handle::setvbuf(handle, buf, type, size)");
383 #if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF)
385 OutputStream handle = 0;
386 char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
391 handle = IoOFP(sv_2io(ST(0)));
392 buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
393 type = (int)SvIV(ST(2));
394 size = (int)SvIV(ST(3));
396 if (!handle) /* Try input stream. */
397 handle = IoIFP(sv_2io(ST(0)));
398 if (items == 4 && handle)
399 RETVAL = setvbuf(handle, buf, type, size);
406 RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
418 RETVAL = fsync(PerlIO_fileno(handle));
424 RETVAL = (SysRet) not_here("IO::Handle::sync");
430 MODULE = IO PACKAGE = IO::Socket
440 fd = PerlIO_fileno(sock);
441 #ifdef HAS_SOCKATMARK
442 RETVAL = sockatmark(fd);
448 if (ioctl(fd, SIOCATMARK, (void*)&flag) != 0)
450 if (ioctl(fd, SIOCATMARK, &flag) != 0)
454 not_here("IO::Socket::atmark");
467 * constant subs for IO::Poll
469 stash = gv_stashpvn("IO::Poll", 8, TRUE);
471 newCONSTSUB(stash,"POLLIN",newSViv(POLLIN));
474 newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI));
477 newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT));
480 newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM));
483 newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM));
486 newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND));
489 newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND));
492 newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM));
495 newCONSTSUB(stash,"POLLERR", newSViv(POLLERR));
498 newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP));
501 newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL));
504 * constant subs for IO::Handle
506 stash = gv_stashpvn("IO::Handle", 10, TRUE);
508 newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF));
511 newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF));
514 newCONSTSUB(stash,"_IONBF", newSViv(_IONBF));
517 newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET));
520 newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR));
523 newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END));