[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_EXT_IO

#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(pTHX_ 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(aTHX_ 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, ...)
	OutputStream	handle
    CODE:
	if (handle)
#ifdef PERLIO_IS_STDIO
        {
	    char *buf = items == 2 && SvPOK(ST(1)) ?
	      sv_grow(ST(1), BUFSIZ) : 0;
	    setbuf(handle, buf);
	}
#else
	    not_here("IO::Handle::setbuf");
#endif

SysRet
setvbuf(...)
    CODE:
	if (items != 4)
            Perl_croak(aTHX_ "Usage: IO::Handle::setvbuf(handle, buf, type, size)");
#if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF)
    {
        OutputStream	handle = 0;
	char *		buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	int		type;
	int		size;

	if (items == 4) {
	    handle = IoOFP(sv_2io(ST(0)));
	    buf    = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	    type   = (int)SvIV(ST(2));
	    size   = (int)SvIV(ST(3));
	}
	if (!handle)			/* Try input stream. */
	    handle = IoIFP(sv_2io(ST(0)));
	if (items == 4 && 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 defined(NETWARE) || defined(WIN32)
       if (ioctl(fd, SIOCATMARK, (void*)&flag) != 0)
#     else
       if (ioctl(fd, SIOCATMARK, &flag) != 0)
#     endif
	 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
6e22d046	7	#define PERL_EXT_IO
6e22d046	8
c5be433b	9	#define PERL_NO_GET_CONTEXT
8add82fc	10	#include "EXTERN.h"
760ac839	11	#define PERLIO_NOT_STDIO 1
8add82fc	12	#include "perl.h"
8add82fc	13	#include "XSUB.h"
cf7fe8a2	14	#include "poll.h"
8add82fc	15	#ifdef I_UNISTD
	16	# include <unistd.h>
	17	#endif
cf7fe8a2	18	#if defined(I_FCNTL) \|\| defined(HAS_FCNTL)
760ac839	19	# include <fcntl.h>
760ac839	20	#endif
8add82fc	21
63a347c7	22	#ifndef SIOCATMARK
	23	# ifdef I_SYS_SOCKIO
	24	# include <sys/sockio.h>
	25	# endif
	26	#endif
	27
2a0cf753	28	#ifdef PerlIO
8add82fc	29	typedef int SysRet;
760ac839	30	typedef PerlIO * InputStream;
760ac839	31	typedef PerlIO * OutputStream;
2a0cf753	32	#else
	33	#define PERLIO_IS_STDIO 1
	34	typedef int SysRet;
	35	typedef FILE * InputStream;
	36	typedef FILE * OutputStream;
	37	#endif
8add82fc	38
cceca5ed	39	#define MY_start_subparse(fmt,flags) start_subparse(fmt,flags)
cf7fe8a2	40
	41	#ifndef gv_stashpvn
	42	#define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
	43	#endif
	44
8add82fc	45	static int
a1ea39dc	46	not_here(char *s)
8add82fc	47	{
	48	croak("%s not implemented on this architecture", s);
	49	return -1;
	50	}
	51
cf7fe8a2	52
	53	#ifndef PerlIO
	54	#define PerlIO_fileno(f) fileno(f)
8add82fc	55	#endif
cf7fe8a2	56
cf7fe8a2	57	static int
e87a358a	58	io_blocking(pTHX_ InputStream f, int block)
cf7fe8a2	59	{
	60	int RETVAL;
	61	if(!f) {
	62	errno = EBADF;
	63	return -1;
	64	}
	65	#if defined(HAS_FCNTL)
	66	RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0);
	67	if (RETVAL >= 0) {
	68	int mode = RETVAL;
	69	#ifdef O_NONBLOCK
766a733e	70	/* POSIX style */
cf7fe8a2	71	#if defined(O_NDELAY) && O_NDELAY != O_NONBLOCK
766a733e	72	/* Ooops has O_NDELAY too - make sure we don't
6fd254a4	73	* get SysV behaviour by mistake. */
cf7fe8a2	74
6fd254a4	75	/* E.g. In UNICOS and UNICOS/mk a F_GETFL returns an O_NDELAY
	76	* after a successful F_SETFL of an O_NONBLOCK. */
	77	RETVAL = RETVAL & (O_NONBLOCK \| O_NDELAY) ? 0 : 1;
	78
	79	if (block >= 0) {
	80	if ((mode & O_NDELAY) \|\| ((block == 0) && !(mode & O_NONBLOCK))) {
	81	int ret;
	82	mode = (mode & ~O_NDELAY) \| O_NONBLOCK;
	83	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	84	if(ret < 0)
	85	RETVAL = ret;
	86	}
	87	else
	88	if ((mode & O_NDELAY) \|\| ((block > 0) && (mode & O_NONBLOCK))) {
	89	int ret;
	90	mode &= ~(O_NONBLOCK \| O_NDELAY);
	91	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	92	if(ret < 0)
	93	RETVAL = ret;
	94	}
cf7fe8a2	95	}
8add82fc	96	#else
766a733e	97	/* Standard POSIX */
cf7fe8a2	98	RETVAL = RETVAL & O_NONBLOCK ? 0 : 1;
	99
	100	if ((block == 0) && !(mode & O_NONBLOCK)) {
	101	int ret;
	102	mode \|= O_NONBLOCK;
	103	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	104	if(ret < 0)
	105	RETVAL = ret;
	106	}
	107	else if ((block > 0) && (mode & O_NONBLOCK)) {
	108	int ret;
	109	mode &= ~O_NONBLOCK;
	110	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	111	if(ret < 0)
	112	RETVAL = ret;
	113	}
766a733e	114	#endif
8add82fc	115	#else
cf7fe8a2	116	/* Not POSIX - better have O_NDELAY or we can't cope.
cf7fe8a2	117	* for BSD-ish machines this is an acceptable alternative
766a733e	118	* for SysV we can't tell "would block" from EOF but that is
cf7fe8a2	119	* the way SysV is...
	120	*/
	121	RETVAL = RETVAL & O_NDELAY ? 0 : 1;
	122
	123	if ((block == 0) && !(mode & O_NDELAY)) {
	124	int ret;
	125	mode \|= O_NDELAY;
	126	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	127	if(ret < 0)
	128	RETVAL = ret;
	129	}
	130	else if ((block > 0) && (mode & O_NDELAY)) {
	131	int ret;
	132	mode &= ~O_NDELAY;
	133	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	134	if(ret < 0)
	135	RETVAL = ret;
	136	}
8add82fc	137	#endif
cf7fe8a2	138	}
cf7fe8a2	139	return RETVAL;
8add82fc	140	#else
cf7fe8a2	141	return -1;
8add82fc	142	#endif
8add82fc	143	}
8add82fc	144
8add82fc	145	MODULE = IO PACKAGE = IO::Seekable PREFIX = f
8add82fc	146
8063af02	147	void
8add82fc	148	fgetpos(handle)
	149	InputStream handle
	150	CODE:
8add82fc	151	if (handle) {
2a0cf753	152	#ifdef PerlIO
766a733e	153	ST(0) = sv_2mortal(newSV(0));
	154	if (PerlIO_getpos(handle, ST(0)) != 0) {
	155	ST(0) = &PL_sv_undef;
	156	}
2a0cf753	157	#else
766a733e	158	if (fgetpos(handle, &pos)) {
a6a714bd	159	ST(0) = &PL_sv_undef;
	160	} else {
	161	ST(0) = sv_2mortal(newSVpv((char*)&pos, sizeof(Fpos_t)));
	162	}
766a733e	163	#endif
8add82fc	164	}
8add82fc	165	else {
a1ea39dc	166	ST(0) = &PL_sv_undef;
8add82fc	167	errno = EINVAL;
8add82fc	168	}
8add82fc	169
	170	SysRet
	171	fsetpos(handle, pos)
	172	InputStream handle
	173	SV * pos
	174	CODE:
766a733e	175	if (handle) {
2a0cf753	176	#ifdef PerlIO
766a733e	177	RETVAL = PerlIO_setpos(handle, pos);
2a0cf753	178	#else
766a733e	179	char *p;
	180	STRLEN len;
	181	if ((p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
	182	RETVAL = fsetpos(handle, (Fpos_t*)p);
	183	}
	184	else {
	185	RETVAL = -1;
	186	errno = EINVAL;
	187	}
2a0cf753	188	#endif
766a733e	189	}
8add82fc	190	else {
	191	RETVAL = -1;
	192	errno = EINVAL;
	193	}
8add82fc	194	OUTPUT:
	195	RETVAL
	196
	197	MODULE = IO PACKAGE = IO::File PREFIX = f
	198
8063af02	199	void
8add82fc	200	new_tmpfile(packname = "IO::File")
8add82fc	201	char * packname
a375a877	202	PREINIT:
	203	OutputStream fp;
	204	GV *gv;
8add82fc	205	CODE:
2a0cf753	206	#ifdef PerlIO
a375a877	207	fp = PerlIO_tmpfile();
2a0cf753	208	#else
a375a877	209	fp = tmpfile();
2a0cf753	210	#endif
a375a877	211	gv = (GV*)SvREFCNT_inc(newGVgen(packname));
	212	hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD);
	213	if (do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) {
6d5cdeed	214	ST(0) = sv_2mortal(newRV((SV*)gv));
a375a877	215	sv_bless(ST(0), gv_stashpv(packname, TRUE));
cf7fe8a2	216	SvREFCNT_dec(gv); /* undo increment in newRV() */
a375a877	217	}
a375a877	218	else {
a1ea39dc	219	ST(0) = &PL_sv_undef;
a375a877	220	SvREFCNT_dec(gv);
a375a877	221	}
8add82fc	222
cf7fe8a2	223	MODULE = IO PACKAGE = IO::Poll
cf7fe8a2	224
766a733e	225	void
cf7fe8a2	226	_poll(timeout,...)
	227	int timeout;
	228	PPCODE:
	229	{
	230	#ifdef HAS_POLL
	231	int nfd = (items - 1) / 2;
	232	SV tmpsv = NEWSV(999,nfd sizeof(struct pollfd));
	233	struct pollfd fds = (struct pollfd )SvPVX(tmpsv);
	234	int i,j,ret;
	235	for(i=1, j=0 ; j < nfd ; j++) {
	236	fds[j].fd = SvIV(ST(i));
	237	i++;
	238	fds[j].events = SvIV(ST(i));
	239	i++;
	240	fds[j].revents = 0;
	241	}
	242	if((ret = poll(fds,nfd,timeout)) >= 0) {
	243	for(i=1, j=0 ; j < nfd ; j++) {
	244	sv_setiv(ST(i), fds[j].fd); i++;
	245	sv_setiv(ST(i), fds[j].revents); i++;
	246	}
	247	}
	248	SvREFCNT_dec(tmpsv);
	249	XSRETURN_IV(ret);
	250	#else
	251	not_here("IO::Poll::poll");
	252	#endif
	253	}
	254
	255	MODULE = IO PACKAGE = IO::Handle PREFIX = io_
	256
	257	void
	258	io_blocking(handle,blk=-1)
	259	InputStream handle
	260	int blk
	261	PROTOTYPE: $;$
	262	CODE:
	263	{
e87a358a	264	int ret = io_blocking(aTHX_ handle, items == 1 ? -1 : blk ? 1 : 0);
cf7fe8a2	265	if(ret >= 0)
	266	XSRETURN_IV(ret);
	267	else
	268	XSRETURN_UNDEF;
	269	}
	270
8add82fc	271	MODULE = IO PACKAGE = IO::Handle PREFIX = f
8add82fc	272
8add82fc	273	int
	274	ungetc(handle, c)
	275	InputStream handle
	276	int c
	277	CODE:
	278	if (handle)
2a0cf753	279	#ifdef PerlIO
760ac839	280	RETVAL = PerlIO_ungetc(handle, c);
2a0cf753	281	#else
	282	RETVAL = ungetc(c, handle);
	283	#endif
8add82fc	284	else {
	285	RETVAL = -1;
	286	errno = EINVAL;
	287	}
	288	OUTPUT:
	289	RETVAL
	290
	291	int
	292	ferror(handle)
	293	InputStream handle
	294	CODE:
	295	if (handle)
2a0cf753	296	#ifdef PerlIO
760ac839	297	RETVAL = PerlIO_error(handle);
2a0cf753	298	#else
	299	RETVAL = ferror(handle);
	300	#endif
	301	else {
	302	RETVAL = -1;
	303	errno = EINVAL;
	304	}
	305	OUTPUT:
	306	RETVAL
	307
	308	int
	309	clearerr(handle)
	310	InputStream handle
	311	CODE:
	312	if (handle) {
	313	#ifdef PerlIO
	314	PerlIO_clearerr(handle);
	315	#else
	316	clearerr(handle);
	317	#endif
	318	RETVAL = 0;
	319	}
8add82fc	320	else {
8add82fc	321	RETVAL = -1;
59629a13	322	errno = EINVAL;
	323	}
	324	OUTPUT:
	325	RETVAL
	326
	327	int
	328	untaint(handle)
	329	SV * handle
	330	CODE:
7a4c00b4	331	#ifdef IOf_UNTAINT
59629a13	332	IO * io;
	333	io = sv_2io(handle);
	334	if (io) {
	335	IoFLAGS(io) \|= IOf_UNTAINT;
	336	RETVAL = 0;
	337	}
	338	else {
7a4c00b4	339	#endif
59629a13	340	RETVAL = -1;
8add82fc	341	errno = EINVAL;
7a4c00b4	342	#ifdef IOf_UNTAINT
8add82fc	343	}
7a4c00b4	344	#endif
8add82fc	345	OUTPUT:
	346	RETVAL
	347
	348	SysRet
	349	fflush(handle)
	350	OutputStream handle
	351	CODE:
	352	if (handle)
2a0cf753	353	#ifdef PerlIO
760ac839	354	RETVAL = PerlIO_flush(handle);
2a0cf753	355	#else
	356	RETVAL = Fflush(handle);
	357	#endif
8add82fc	358	else {
	359	RETVAL = -1;
	360	errno = EINVAL;
	361	}
	362	OUTPUT:
	363	RETVAL
	364
	365	void
c46a0ec2	366	setbuf(handle, ...)
8add82fc	367	OutputStream handle
8add82fc	368	CODE:
8add82fc	369	if (handle)
760ac839	370	#ifdef PERLIO_IS_STDIO
c46a0ec2	371	{
	372	char *buf = items == 2 && SvPOK(ST(1)) ?
	373	sv_grow(ST(1), BUFSIZ) : 0;
8add82fc	374	setbuf(handle, buf);
c46a0ec2	375	}
760ac839	376	#else
	377	not_here("IO::Handle::setbuf");
	378	#endif
8add82fc	379
8add82fc	380	SysRet
c46a0ec2	381	setvbuf(...)
8add82fc	382	CODE:
c46a0ec2	383	if (items != 4)
c46a0ec2	384	Perl_croak(aTHX_ "Usage: IO::Handle::setvbuf(handle, buf, type, size)");
1eeb0f31	385	#if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF)
c46a0ec2	386	{
	387	OutputStream handle = 0;
	388	char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	389	int type;
	390	int size;
	391
	392	if (items == 4) {
	393	handle = IoOFP(sv_2io(ST(0)));
	394	buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	395	type = (int)SvIV(ST(2));
	396	size = (int)SvIV(ST(3));
	397	}
d924de76	398	if (!handle) /* Try input stream. */
d924de76	399	handle = IoIFP(sv_2io(ST(0)));
c46a0ec2	400	if (items == 4 && handle)
8add82fc	401	RETVAL = setvbuf(handle, buf, type, size);
	402	else {
	403	RETVAL = -1;
	404	errno = EINVAL;
	405	}
c46a0ec2	406	}
8add82fc	407	#else
61839fa9	408	RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
760ac839	409	#endif
8add82fc	410	OUTPUT:
	411	RETVAL
	412
	413
cf7fe8a2	414	SysRet
	415	fsync(handle)
	416	OutputStream handle
	417	CODE:
	418	#ifdef HAS_FSYNC
	419	if(handle)
	420	RETVAL = fsync(PerlIO_fileno(handle));
	421	else {
	422	RETVAL = -1;
	423	errno = EINVAL;
	424	}
	425	#else
	426	RETVAL = (SysRet) not_here("IO::Handle::sync");
	427	#endif
	428	OUTPUT:
	429	RETVAL
	430
	431
63a347c7	432	MODULE = IO PACKAGE = IO::Socket
	433
	434	SysRet
	435	sockatmark (sock)
	436	InputStream sock
	437	PROTOTYPE: $
	438	PREINIT:
06c912bc	439	int fd;
63a347c7	440	CODE:
	441	{
	442	fd = PerlIO_fileno(sock);
	443	#ifdef HAS_SOCKATMARK
06c912bc	444	RETVAL = sockatmark(fd);
63a347c7	445	#else
06c912bc	446	{
06c912bc	447	int flag = 0;
6d087280	448	# ifdef SIOCATMARK
6e22d046	449	# if defined(NETWARE) \|\| defined(WIN32)
2986a63f	450	if (ioctl(fd, SIOCATMARK, (void*)&flag) != 0)
f754b6e0	451	# else
	452	if (ioctl(fd, SIOCATMARK, &flag) != 0)
	453	# endif
06c912bc	454	XSRETURN_UNDEF;
63a347c7	455	# else
06c912bc	456	not_here("IO::Socket::atmark");
	457	# endif
	458	RETVAL = flag;
	459	}
63a347c7	460	#endif
	461	}
	462	OUTPUT:
	463	RETVAL
	464
cf7fe8a2	465	BOOT:
	466	{
	467	HV *stash;
	468	/*
	469	* constant subs for IO::Poll
	470	*/
	471	stash = gv_stashpvn("IO::Poll", 8, TRUE);
	472	#ifdef POLLIN
	473	newCONSTSUB(stash,"POLLIN",newSViv(POLLIN));
	474	#endif
	475	#ifdef POLLPRI
	476	newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI));
	477	#endif
	478	#ifdef POLLOUT
	479	newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT));
	480	#endif
	481	#ifdef POLLRDNORM
	482	newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM));
	483	#endif
	484	#ifdef POLLWRNORM
	485	newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM));
	486	#endif
	487	#ifdef POLLRDBAND
	488	newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND));
	489	#endif
	490	#ifdef POLLWRBAND
	491	newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND));
	492	#endif
	493	#ifdef POLLNORM
	494	newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM));
	495	#endif
	496	#ifdef POLLERR
	497	newCONSTSUB(stash,"POLLERR", newSViv(POLLERR));
	498	#endif
	499	#ifdef POLLHUP
	500	newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP));
	501	#endif
	502	#ifdef POLLNVAL
	503	newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL));
	504	#endif
	505	/*
	506	* constant subs for IO::Handle
	507	*/
	508	stash = gv_stashpvn("IO::Handle", 10, TRUE);
	509	#ifdef _IOFBF
	510	newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF));
	511	#endif
	512	#ifdef _IOLBF
	513	newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF));
	514	#endif
	515	#ifdef _IONBF
	516	newCONSTSUB(stash,"_IONBF", newSViv(_IONBF));
	517	#endif
	518	#ifdef SEEK_SET
	519	newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET));
	520	#endif
	521	#ifdef SEEK_CUR
	522	newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR));
	523	#endif
	524	#ifdef SEEK_END
	525	newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END));
	526	#endif
cf7fe8a2	527	}
63a347c7	528