[p5sagit/p5-mst-13.2.git] / ext / IO / IO.xs

/*
 * Copyright (c) 1997-8 Graham Barr <gbarr@pobox.com>. All rights reserved.
 * This program is free software; you can redistribute it and/or
 * modify it under the same terms as Perl itself.
 */

#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#define PERLIO_NOT_STDIO 1
#include "perl.h"
#include "XSUB.h"
#include "poll.h"
#ifdef I_UNISTD
#  include <unistd.h>
#endif
#if defined(I_FCNTL) || defined(HAS_FCNTL)
#  include <fcntl.h>
#endif

#ifndef SIOCATMARK
#   ifdef I_SYS_SOCKIO
#       include <sys/sockio.h>
#   endif
#endif

#ifdef PerlIO
typedef int SysRet;
typedef PerlIO * InputStream;
typedef PerlIO * OutputStream;
#else
#define PERLIO_IS_STDIO 1
typedef int SysRet;
typedef FILE * InputStream;
typedef FILE * OutputStream;
#endif

#define MY_start_subparse(fmt,flags) start_subparse(fmt,flags)

#ifndef gv_stashpvn
#define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
#endif

static int
not_here(char *s)
{
    croak("%s not implemented on this architecture", s);
    return -1;
}


#ifndef PerlIO
#define PerlIO_fileno(f) fileno(f)
#endif

static int
io_blocking(InputStream f, int block)
{
    int RETVAL;
    if(!f) {
	errno = EBADF;
	return -1;
    }
#if defined(HAS_FCNTL)
    RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0);
    if (RETVAL >= 0) {
	int mode = RETVAL;
#ifdef O_NONBLOCK
	/* POSIX style */
#if defined(O_NDELAY) && O_NDELAY != O_NONBLOCK
	/* Ooops has O_NDELAY too - make sure we don't
	 * get SysV behaviour by mistake. */

	/* E.g. In UNICOS and UNICOS/mk a F_GETFL returns an O_NDELAY
	 * after a successful F_SETFL of an O_NONBLOCK. */
	RETVAL = RETVAL & (O_NONBLOCK | O_NDELAY) ? 0 : 1;

	if (block >= 0) {
	    if ((mode & O_NDELAY) || ((block == 0) && !(mode & O_NONBLOCK))) {
	        int ret;
	        mode = (mode & ~O_NDELAY) | O_NONBLOCK;
	        ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	        if(ret < 0)
		    RETVAL = ret;
	    }
	    else
              if ((mode & O_NDELAY) || ((block > 0) && (mode & O_NONBLOCK))) {
	        int ret;
	        mode &= ~(O_NONBLOCK | O_NDELAY);
	        ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	        if(ret < 0)
		    RETVAL = ret;
              }
	}
#else
	/* Standard POSIX */
	RETVAL = RETVAL & O_NONBLOCK ? 0 : 1;

	if ((block == 0) && !(mode & O_NONBLOCK)) {
	    int ret;
	    mode |= O_NONBLOCK;
	    ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	    if(ret < 0)
		RETVAL = ret;
	 }
	else if ((block > 0) && (mode & O_NONBLOCK)) {
	    int ret;
	    mode &= ~O_NONBLOCK;
	    ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	    if(ret < 0)
		RETVAL = ret;
	 }
#endif
#else
	/* Not POSIX - better have O_NDELAY or we can't cope.
	 * for BSD-ish machines this is an acceptable alternative
	 * for SysV we can't tell "would block" from EOF but that is
	 * the way SysV is...
	 */
	RETVAL = RETVAL & O_NDELAY ? 0 : 1;

	if ((block == 0) && !(mode & O_NDELAY)) {
	    int ret;
	    mode |= O_NDELAY;
	    ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	    if(ret < 0)
		RETVAL = ret;
	 }
	else if ((block > 0) && (mode & O_NDELAY)) {
	    int ret;
	    mode &= ~O_NDELAY;
	    ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	    if(ret < 0)
		RETVAL = ret;
	 }
#endif
    }
    return RETVAL;
#else
 return -1;
#endif
}

MODULE = IO	PACKAGE = IO::Seekable	PREFIX = f

void
fgetpos(handle)
	InputStream	handle
    CODE:
	if (handle) {
#ifdef PerlIO
	    ST(0) = sv_2mortal(newSV(0));
	    if (PerlIO_getpos(handle, ST(0)) != 0) {
		ST(0) = &PL_sv_undef;
	    }
#else
	    if (fgetpos(handle, &pos)) {
		ST(0) = &PL_sv_undef;
	    } else {
		ST(0) = sv_2mortal(newSVpv((char*)&pos, sizeof(Fpos_t)));
	    }
#endif
	}
	else {
	    ST(0) = &PL_sv_undef;
	    errno = EINVAL;
	}

SysRet
fsetpos(handle, pos)
	InputStream	handle
	SV *		pos
    CODE:
	if (handle) {
#ifdef PerlIO
	    RETVAL = PerlIO_setpos(handle, pos);
#else
	    char *p;
	    STRLEN len;
	    if ((p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
		RETVAL = fsetpos(handle, (Fpos_t*)p);
	    }
	    else {
		RETVAL = -1;
		errno = EINVAL;
	    }
#endif
	}
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
    OUTPUT:
	RETVAL

MODULE = IO	PACKAGE = IO::File	PREFIX = f

void
new_tmpfile(packname = "IO::File")
    char *		packname
    PREINIT:
	OutputStream fp;
	GV *gv;
    CODE:
#ifdef PerlIO
	fp = PerlIO_tmpfile();
#else
	fp = tmpfile();
#endif
	gv = (GV*)SvREFCNT_inc(newGVgen(packname));
	hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD);
	if (do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) {
	    ST(0) = sv_2mortal(newRV((SV*)gv));
	    sv_bless(ST(0), gv_stashpv(packname, TRUE));
	    SvREFCNT_dec(gv);   /* undo increment in newRV() */
	}
	else {
	    ST(0) = &PL_sv_undef;
	    SvREFCNT_dec(gv);
	}

MODULE = IO	PACKAGE = IO::Poll

void
_poll(timeout,...)
	int timeout;
PPCODE:
{
#ifdef HAS_POLL
    int nfd = (items - 1) / 2;
    SV *tmpsv = NEWSV(999,nfd * sizeof(struct pollfd));
    struct pollfd *fds = (struct pollfd *)SvPVX(tmpsv);
    int i,j,ret;
    for(i=1, j=0  ; j < nfd ; j++) {
	fds[j].fd = SvIV(ST(i));
	i++;
	fds[j].events = SvIV(ST(i));
	i++;
	fds[j].revents = 0;
    }
    if((ret = poll(fds,nfd,timeout)) >= 0) {
	for(i=1, j=0 ; j < nfd ; j++) {
	    sv_setiv(ST(i), fds[j].fd); i++;
	    sv_setiv(ST(i), fds[j].revents); i++;
	}
    }
    SvREFCNT_dec(tmpsv);
    XSRETURN_IV(ret);
#else
	not_here("IO::Poll::poll");
#endif
}

MODULE = IO	PACKAGE = IO::Handle	PREFIX = io_

void
io_blocking(handle,blk=-1)
	InputStream	handle
	int		blk
PROTOTYPE: $;$
CODE:
{
    int ret = io_blocking(handle, items == 1 ? -1 : blk ? 1 : 0);
    if(ret >= 0)
	XSRETURN_IV(ret);
    else
	XSRETURN_UNDEF;
}

MODULE = IO	PACKAGE = IO::Handle	PREFIX = f

int
ungetc(handle, c)
	InputStream	handle
	int		c
    CODE:
	if (handle)
#ifdef PerlIO
	    RETVAL = PerlIO_ungetc(handle, c);
#else
	    RETVAL = ungetc(c, handle);
#endif
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
    OUTPUT:
	RETVAL

int
ferror(handle)
	InputStream	handle
    CODE:
	if (handle)
#ifdef PerlIO
	    RETVAL = PerlIO_error(handle);
#else
	    RETVAL = ferror(handle);
#endif
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
    OUTPUT:
	RETVAL

int
clearerr(handle)
	InputStream	handle
    CODE:
	if (handle) {
#ifdef PerlIO
	    PerlIO_clearerr(handle);
#else
	    clearerr(handle);
#endif
	    RETVAL = 0;
	}
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
    OUTPUT:
	RETVAL

int
untaint(handle)
       SV *	handle
    CODE:
#ifdef IOf_UNTAINT
	IO * io;
	io = sv_2io(handle);
	if (io) {
	    IoFLAGS(io) |= IOf_UNTAINT;
	    RETVAL = 0;
	}
        else {
#endif
	    RETVAL = -1;
	    errno = EINVAL;
#ifdef IOf_UNTAINT
	}
#endif
    OUTPUT:
	RETVAL

SysRet
fflush(handle)
	OutputStream	handle
    CODE:
	if (handle)
#ifdef PerlIO
	    RETVAL = PerlIO_flush(handle);
#else
	    RETVAL = Fflush(handle);
#endif
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
    OUTPUT:
	RETVAL

void
setbuf(handle, buf)
	OutputStream	handle
	char *		buf = SvPOK(ST(1)) ? sv_grow(ST(1), BUFSIZ) : 0;
    CODE:
	if (handle)
#ifdef PERLIO_IS_STDIO
	    setbuf(handle, buf);
#else
	    not_here("IO::Handle::setbuf");
#endif

SysRet
setvbuf(handle, buf, type, size)
	OutputStream	handle
	char *		buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	int		type
	int		size
    CODE:
#if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF)
	if (!handle)			/* Try input stream. */
	    handle = IoIFP(sv_2io(ST(0)));
	if (handle)
	    RETVAL = setvbuf(handle, buf, type, size);
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
#else
	RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
#endif
    OUTPUT:
	RETVAL


SysRet
fsync(handle)
	OutputStream handle
    CODE:
#ifdef HAS_FSYNC
	if(handle)
	    RETVAL = fsync(PerlIO_fileno(handle));
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
#else
	RETVAL = (SysRet) not_here("IO::Handle::sync");
#endif
    OUTPUT:
	RETVAL


MODULE = IO	PACKAGE = IO::Socket

SysRet
sockatmark (sock)
   InputStream sock
   PROTOTYPE: $
   PREINIT:
     int fd;
   CODE:
   {
     fd = PerlIO_fileno(sock);
#ifdef HAS_SOCKATMARK
     RETVAL = sockatmark(fd);
#else
     {
       int flag = 0;
#   ifdef SIOCATMARK
       if (ioctl(fd, SIOCATMARK, &flag) != 0)
	 XSRETURN_UNDEF;
#   else
       not_here("IO::Socket::atmark");
#   endif
       RETVAL = flag;
     }
#endif
   }
   OUTPUT:
     RETVAL

BOOT:
{
    HV *stash;
    /*
     * constant subs for IO::Poll
     */
    stash = gv_stashpvn("IO::Poll", 8, TRUE);
#ifdef	POLLIN
	newCONSTSUB(stash,"POLLIN",newSViv(POLLIN));
#endif
#ifdef	POLLPRI
        newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI));
#endif
#ifdef	POLLOUT
        newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT));
#endif
#ifdef	POLLRDNORM
        newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM));
#endif
#ifdef	POLLWRNORM
        newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM));
#endif
#ifdef	POLLRDBAND
        newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND));
#endif
#ifdef	POLLWRBAND
        newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND));
#endif
#ifdef	POLLNORM
        newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM));
#endif
#ifdef	POLLERR
        newCONSTSUB(stash,"POLLERR", newSViv(POLLERR));
#endif
#ifdef	POLLHUP
        newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP));
#endif
#ifdef	POLLNVAL
        newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL));
#endif
    /*
     * constant subs for IO::Handle
     */
    stash = gv_stashpvn("IO::Handle", 10, TRUE);
#ifdef _IOFBF
        newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF));
#endif
#ifdef _IOLBF
        newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF));
#endif
#ifdef _IONBF
        newCONSTSUB(stash,"_IONBF", newSViv(_IONBF));
#endif
#ifdef SEEK_SET
        newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET));
#endif
#ifdef SEEK_CUR
        newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR));
#endif
#ifdef SEEK_END
        newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END));
#endif
}
Commit	Line	Data
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"
8add82fc	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>
760ac839	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;
760ac839	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
cf7fe8a2	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.
cf7fe8a2	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	}
cf7fe8a2	137	return RETVAL;
8add82fc	138	#else
cf7fe8a2	139	return -1;
8add82fc	140	#endif
8add82fc	141	}
8add82fc	142
8add82fc	143	MODULE = IO PACKAGE = IO::Seekable PREFIX = f
8add82fc	144
8063af02	145	void
8add82fc	146	fgetpos(handle)
	147	InputStream handle
	148	CODE:
8add82fc	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	}
8add82fc	163	else {
a1ea39dc	164	ST(0) = &PL_sv_undef;
8add82fc	165	errno = EINVAL;
8add82fc	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")
8add82fc	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	}
a375a877	216	else {
a1ea39dc	217	ST(0) = &PL_sv_undef;
a375a877	218	SvREFCNT_dec(gv);
a375a877	219	}
8add82fc	220
cf7fe8a2	221	MODULE = IO PACKAGE = IO::Poll
cf7fe8a2	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
8add82fc	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 {
8add82fc	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. */
d924de76	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:
06c912bc	423	int fd;
63a347c7	424	CODE:
	425	{
	426	fd = PerlIO_fileno(sock);
	427	#ifdef HAS_SOCKATMARK
06c912bc	428	RETVAL = sockatmark(fd);
63a347c7	429	#else
06c912bc	430	{
06c912bc	431	int flag = 0;
6d087280	432	# ifdef SIOCATMARK
06c912bc	433	if (ioctl(fd, SIOCATMARK, &flag) != 0)
06c912bc	434	XSRETURN_UNDEF;
63a347c7	435	# else
06c912bc	436	not_here("IO::Socket::atmark");
	437	# endif
	438	RETVAL = flag;
	439	}
63a347c7	440	#endif
	441	}
	442	OUTPUT:
	443	RETVAL
	444
cf7fe8a2	445	BOOT:
	446	{
	447	HV *stash;
	448	/*
	449	* constant subs for IO::Poll
	450	*/
	451	stash = gv_stashpvn("IO::Poll", 8, TRUE);
	452	#ifdef POLLIN
	453	newCONSTSUB(stash,"POLLIN",newSViv(POLLIN));
	454	#endif
	455	#ifdef POLLPRI
	456	newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI));
	457	#endif
	458	#ifdef POLLOUT
	459	newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT));
	460	#endif
	461	#ifdef POLLRDNORM
	462	newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM));
	463	#endif
	464	#ifdef POLLWRNORM
	465	newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM));
	466	#endif
	467	#ifdef POLLRDBAND
	468	newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND));
	469	#endif
	470	#ifdef POLLWRBAND
	471	newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND));
	472	#endif
	473	#ifdef POLLNORM
	474	newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM));
	475	#endif
	476	#ifdef POLLERR
	477	newCONSTSUB(stash,"POLLERR", newSViv(POLLERR));
	478	#endif
	479	#ifdef POLLHUP
	480	newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP));
	481	#endif
	482	#ifdef POLLNVAL
	483	newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL));
	484	#endif
	485	/*
	486	* constant subs for IO::Handle
	487	*/
	488	stash = gv_stashpvn("IO::Handle", 10, TRUE);
	489	#ifdef _IOFBF
	490	newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF));
	491	#endif
	492	#ifdef _IOLBF
	493	newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF));
	494	#endif
	495	#ifdef _IONBF
	496	newCONSTSUB(stash,"_IONBF", newSViv(_IONBF));
	497	#endif
	498	#ifdef SEEK_SET
	499	newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET));
	500	#endif
	501	#ifdef SEEK_CUR
	502	newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR));
	503	#endif
	504	#ifdef SEEK_END
	505	newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END));
	506	#endif
cf7fe8a2	507	}
63a347c7	508