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 typedef PerlIO * InputStream;
23 typedef PerlIO * OutputStream;
25 #define PERLIO_IS_STDIO 1
27 typedef FILE * InputStream;
28 typedef FILE * OutputStream;
31 #define MY_start_subparse(fmt,flags) start_subparse(fmt,flags)
34 #define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
40 croak("%s not implemented on this architecture", s);
46 #define PerlIO_fileno(f) fileno(f)
50 io_blocking(InputStream f, int block)
57 #if defined(HAS_FCNTL)
58 RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0);
63 #if defined(O_NDELAY) && O_NDELAY != O_NONBLOCK
64 /* Ooops has O_NDELAY too - make sure we don't
65 * get SysV behaviour by mistake. */
67 /* E.g. In UNICOS and UNICOS/mk a F_GETFL returns an O_NDELAY
68 * after a successful F_SETFL of an O_NONBLOCK. */
69 RETVAL = RETVAL & (O_NONBLOCK | O_NDELAY) ? 0 : 1;
72 if ((mode & O_NDELAY) || ((block == 0) && !(mode & O_NONBLOCK))) {
74 mode = (mode & ~O_NDELAY) | O_NONBLOCK;
75 ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
80 if ((mode & O_NDELAY) || ((block > 0) && (mode & O_NONBLOCK))) {
82 mode &= ~(O_NONBLOCK | O_NDELAY);
83 ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
90 RETVAL = RETVAL & O_NONBLOCK ? 0 : 1;
92 if ((block == 0) && !(mode & O_NONBLOCK)) {
95 ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
99 else if ((block > 0) && (mode & O_NONBLOCK)) {
102 ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
108 /* Not POSIX - better have O_NDELAY or we can't cope.
109 * for BSD-ish machines this is an acceptable alternative
110 * for SysV we can't tell "would block" from EOF but that is
113 RETVAL = RETVAL & O_NDELAY ? 0 : 1;
115 if ((block == 0) && !(mode & O_NDELAY)) {
118 ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
122 else if ((block > 0) && (mode & O_NDELAY)) {
125 ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
137 MODULE = IO PACKAGE = IO::Seekable PREFIX = f
145 ST(0) = sv_2mortal(newSV(0));
146 if (PerlIO_getpos(handle, ST(0)) != 0) {
147 ST(0) = &PL_sv_undef;
150 if (fgetpos(handle, &pos)) {
151 ST(0) = &PL_sv_undef;
153 ST(0) = sv_2mortal(newSVpv((char*)&pos, sizeof(Fpos_t)));
158 ST(0) = &PL_sv_undef;
169 RETVAL = PerlIO_setpos(handle, pos);
173 if ((p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
174 RETVAL = fsetpos(handle, (Fpos_t*)p);
189 MODULE = IO PACKAGE = IO::File PREFIX = f
192 new_tmpfile(packname = "IO::File")
199 fp = PerlIO_tmpfile();
203 gv = (GV*)SvREFCNT_inc(newGVgen(packname));
204 hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD);
205 if (do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) {
206 ST(0) = sv_2mortal(newRV((SV*)gv));
207 sv_bless(ST(0), gv_stashpv(packname, TRUE));
208 SvREFCNT_dec(gv); /* undo increment in newRV() */
211 ST(0) = &PL_sv_undef;
215 MODULE = IO PACKAGE = IO::Poll
223 int nfd = (items - 1) / 2;
224 SV *tmpsv = NEWSV(999,nfd * sizeof(struct pollfd));
225 struct pollfd *fds = (struct pollfd *)SvPVX(tmpsv);
227 for(i=1, j=0 ; j < nfd ; j++) {
228 fds[j].fd = SvIV(ST(i));
230 fds[j].events = SvIV(ST(i));
234 if((ret = poll(fds,nfd,timeout)) >= 0) {
235 for(i=1, j=0 ; j < nfd ; j++) {
236 sv_setiv(ST(i), fds[j].fd); i++;
237 sv_setiv(ST(i), fds[j].revents); i++;
243 not_here("IO::Poll::poll");
247 MODULE = IO PACKAGE = IO::Handle PREFIX = io_
250 io_blocking(handle,blk=-1)
256 int ret = io_blocking(handle, items == 1 ? -1 : blk ? 1 : 0);
263 MODULE = IO PACKAGE = IO::Handle PREFIX = f
273 RETVAL = PerlIO_ungetc(handle, c);
275 RETVAL = ungetc(c, handle);
290 RETVAL = PerlIO_error(handle);
292 RETVAL = ferror(handle);
307 PerlIO_clearerr(handle);
328 IoFLAGS(io) |= IOf_UNTAINT;
347 RETVAL = PerlIO_flush(handle);
349 RETVAL = Fflush(handle);
361 char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), BUFSIZ) : 0;
364 #ifdef PERLIO_IS_STDIO
367 not_here("IO::Handle::setbuf");
371 setvbuf(handle, buf, type, size)
373 char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
377 #if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF)
378 if (!handle) /* Try input stream. */
379 handle = IoIFP(sv_2io(ST(0)));
381 RETVAL = setvbuf(handle, buf, type, size);
387 RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
399 RETVAL = fsync(PerlIO_fileno(handle));
405 RETVAL = (SysRet) not_here("IO::Handle::sync");
415 * constant subs for IO::Poll
417 stash = gv_stashpvn("IO::Poll", 8, TRUE);
419 newCONSTSUB(stash,"POLLIN",newSViv(POLLIN));
422 newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI));
425 newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT));
428 newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM));
431 newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM));
434 newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND));
437 newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND));
440 newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM));
443 newCONSTSUB(stash,"POLLERR", newSViv(POLLERR));
446 newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP));
449 newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL));
452 * constant subs for IO::Handle
454 stash = gv_stashpvn("IO::Handle", 10, TRUE);
456 newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF));
459 newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF));
462 newCONSTSUB(stash,"_IONBF", newSViv(_IONBF));
465 newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET));
468 newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR));
471 newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END));