[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
#if defined(MACOS_TRADITIONAL) && defined(USE_SFIO)
#define PERLIO_IS_STDIO 1
#undef setbuf
#undef setvbuf
#define setvbuf		_stdsetvbuf
#define setbuf(f,b)	( __sf_setbuf(f,b) )
#endif
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

#ifndef __attribute__noreturn__
#  define __attribute__noreturn__
#endif

#ifndef NORETURN_FUNCTION_END
# define NORETURN_FUNCTION_END /* NOT REACHED */ return 0
#endif

static int not_here(const char *s) __attribute__noreturn__;
static int
not_here(const char *s)
{
    croak("%s not implemented on this architecture", s);
    NORETURN_FUNCTION_END;
}


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

static int
io_blocking(pTHX_ InputStream f, int block)
{
#if defined(HAS_FCNTL)
    int RETVAL;
    if(!f) {
	errno = EBADF;
	return -1;
    }
    RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0);
    if (RETVAL >= 0) {
	int mode = RETVAL;
	int newmode = mode;
#ifdef O_NONBLOCK
	/* POSIX style */

# ifndef O_NDELAY
#  define O_NDELAY O_NONBLOCK
# endif
	/* Note: 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) {
	    newmode &= ~O_NDELAY;
	    newmode |= O_NONBLOCK;
	} else if (block > 0) {
	    newmode &= ~(O_NDELAY|O_NONBLOCK);
	}
#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) {
	    newmode |= O_NDELAY;
	} else if (block > 0) {
	    newmode &= ~O_NDELAY;
	}
#endif
	if (newmode != mode) {
	    const int ret = fcntl(PerlIO_fileno(f),F_SETFL,newmode);
	    if (ret < 0)
		RETVAL = ret;
	}
    }
    return RETVAL;
#else
#   ifdef WIN32
    char flags = (char)block;
    return ioctl(PerlIO_fileno(f), FIONBIO, &flags);
#   else
    return -1;
#   endif
#endif
}

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

void
fgetpos(handle)
	InputStream	handle
    CODE:
	if (handle) {
#ifdef PerlIO
#if PERL_VERSION < 8
	    Fpos_t pos;
	    ST(0) = sv_newmortal();
	    if (PerlIO_getpos(handle, &pos) != 0) {
		ST(0) = &PL_sv_undef;
	    }
	    else {
		sv_setpvn(ST(0), (char *)&pos, sizeof(Fpos_t));
	    }
#else
	    ST(0) = sv_newmortal();
	    if (PerlIO_getpos(handle, ST(0)) != 0) {
		ST(0) = &PL_sv_undef;
	    }
#endif
#else
	    Fpos_t pos;
	    if (fgetpos(handle, &pos)) {
		ST(0) = &PL_sv_undef;
	    } else {
		ST(0) = sv_2mortal(newSVpvn((char*)&pos, sizeof(Fpos_t)));
	    }
#endif
	}
	else {
	    errno = EINVAL;
	    ST(0) = &PL_sv_undef;
	}

SysRet
fsetpos(handle, pos)
	InputStream	handle
	SV *		pos
    CODE:
	if (handle) {
#ifdef PerlIO
#if PERL_VERSION < 8
	    char *p;
	    STRLEN len;
	    if (SvOK(pos) && (p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
		RETVAL = PerlIO_setpos(handle, (Fpos_t*)p);
	    }
	    else {
		RETVAL = -1;
		errno = EINVAL;
	    }
#else
	    RETVAL = PerlIO_setpos(handle, pos);
#endif
#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")
    const char * packname
    PREINIT:
	OutputStream fp;
	GV *gv;
    CODE:
#ifdef PerlIO
	fp = PerlIO_tmpfile();
#else
	fp = tmpfile();
#endif
	gv = (GV*)SvREFCNT_inc(newGVgen(packname));
	if (gv)
	    hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD);
	if (gv && 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
    const 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 = (short)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:
{
    const 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
eb44fba6	29	#if defined(MACOS_TRADITIONAL) && defined(USE_SFIO)
824215e2	30	#define PERLIO_IS_STDIO 1
	31	#undef setbuf
	32	#undef setvbuf
	33	#define setvbuf _stdsetvbuf
	34	#define setbuf(f,b) ( __sf_setbuf(f,b) )
	35	#endif
8add82fc	36	typedef int SysRet;
760ac839	37	typedef PerlIO * InputStream;
760ac839	38	typedef PerlIO * OutputStream;
2a0cf753	39	#else
	40	#define PERLIO_IS_STDIO 1
	41	typedef int SysRet;
	42	typedef FILE * InputStream;
	43	typedef FILE * OutputStream;
	44	#endif
8add82fc	45
cceca5ed	46	#define MY_start_subparse(fmt,flags) start_subparse(fmt,flags)
cf7fe8a2	47
	48	#ifndef gv_stashpvn
	49	#define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
	50	#endif
	51
35a60386	52	#ifndef __attribute__noreturn__
	53	# define __attribute__noreturn__
	54	#endif
	55
	56	#ifndef NORETURN_FUNCTION_END
	57	# define NORETURN_FUNCTION_END /* NOT REACHED */ return 0
	58	#endif
	59
7698c435	60	static int not_here(const char *s) __attribute__noreturn__;
8add82fc	61	static int
7698c435	62	not_here(const char *s)
8add82fc	63	{
8add82fc	64	croak("%s not implemented on this architecture", s);
c38693a5	65	NORETURN_FUNCTION_END;
8add82fc	66	}
8add82fc	67
cf7fe8a2	68
	69	#ifndef PerlIO
	70	#define PerlIO_fileno(f) fileno(f)
8add82fc	71	#endif
cf7fe8a2	72
cf7fe8a2	73	static int
e87a358a	74	io_blocking(pTHX_ InputStream f, int block)
cf7fe8a2	75	{
91f3b821	76	#if defined(HAS_FCNTL)
cf7fe8a2	77	int RETVAL;
	78	if(!f) {
	79	errno = EBADF;
	80	return -1;
	81	}
cf7fe8a2	82	RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0);
	83	if (RETVAL >= 0) {
	84	int mode = RETVAL;
3b2f3eeb	85	int newmode = mode;
cf7fe8a2	86	#ifdef O_NONBLOCK
766a733e	87	/* POSIX style */
cf7fe8a2	88
3b2f3eeb	89	# ifndef O_NDELAY
	90	# define O_NDELAY O_NONBLOCK
	91	# endif
	92	/* Note: UNICOS and UNICOS/mk a F_GETFL returns an O_NDELAY
6fd254a4	93	* after a successful F_SETFL of an O_NONBLOCK. */
	94	RETVAL = RETVAL & (O_NONBLOCK \| O_NDELAY) ? 0 : 1;
	95
3b2f3eeb	96	if (block == 0) {
	97	newmode &= ~O_NDELAY;
	98	newmode \|= O_NONBLOCK;
	99	} else if (block > 0) {
	100	newmode &= ~(O_NDELAY\|O_NONBLOCK);
cf7fe8a2	101	}
8add82fc	102	#else
cf7fe8a2	103	/* Not POSIX - better have O_NDELAY or we can't cope.
cf7fe8a2	104	* for BSD-ish machines this is an acceptable alternative
766a733e	105	* for SysV we can't tell "would block" from EOF but that is
cf7fe8a2	106	* the way SysV is...
	107	*/
	108	RETVAL = RETVAL & O_NDELAY ? 0 : 1;
	109
3b2f3eeb	110	if (block == 0) {
	111	newmode \|= O_NDELAY;
	112	} else if (block > 0) {
	113	newmode &= ~O_NDELAY;
	114	}
	115	#endif
	116	if (newmode != mode) {
7698c435	117	const int ret = fcntl(PerlIO_fileno(f),F_SETFL,newmode);
3b2f3eeb	118	if (ret < 0)
cf7fe8a2	119	RETVAL = ret;
3b2f3eeb	120	}
cf7fe8a2	121	}
cf7fe8a2	122	return RETVAL;
8add82fc	123	#else
20caf59d	124	# ifdef WIN32
5f1c7092	125	char flags = (char)block;
20caf59d	126	return ioctl(PerlIO_fileno(f), FIONBIO, &flags);
20caf59d	127	# else
91f3b821	128	return -1;
20caf59d	129	# endif
8add82fc	130	#endif
8add82fc	131	}
8add82fc	132
8add82fc	133	MODULE = IO PACKAGE = IO::Seekable PREFIX = f
8add82fc	134
8063af02	135	void
8add82fc	136	fgetpos(handle)
	137	InputStream handle
	138	CODE:
8add82fc	139	if (handle) {
2a0cf753	140	#ifdef PerlIO
35a60386	141	#if PERL_VERSION < 8
86413ec0	142	Fpos_t pos;
86413ec0	143	ST(0) = sv_newmortal();
35a60386	144	if (PerlIO_getpos(handle, &pos) != 0) {
	145	ST(0) = &PL_sv_undef;
	146	}
	147	else {
	148	sv_setpvn(ST(0), (char *)&pos, sizeof(Fpos_t));
	149	}
	150	#else
86413ec0	151	ST(0) = sv_newmortal();
766a733e	152	if (PerlIO_getpos(handle, ST(0)) != 0) {
	153	ST(0) = &PL_sv_undef;
	154	}
35a60386	155	#endif
2a0cf753	156	#else
35a60386	157	Fpos_t pos;
766a733e	158	if (fgetpos(handle, &pos)) {
a6a714bd	159	ST(0) = &PL_sv_undef;
a6a714bd	160	} else {
35a60386	161	ST(0) = sv_2mortal(newSVpvn((char*)&pos, sizeof(Fpos_t)));
a6a714bd	162	}
766a733e	163	#endif
8add82fc	164	}
8add82fc	165	else {
8add82fc	166	errno = EINVAL;
35a60386	167	ST(0) = &PL_sv_undef;
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
35a60386	177	#if PERL_VERSION < 8
	178	char *p;
	179	STRLEN len;
	180	if (SvOK(pos) && (p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
	181	RETVAL = PerlIO_setpos(handle, (Fpos_t*)p);
	182	}
	183	else {
	184	RETVAL = -1;
	185	errno = EINVAL;
	186	}
	187	#else
766a733e	188	RETVAL = PerlIO_setpos(handle, pos);
35a60386	189	#endif
2a0cf753	190	#else
766a733e	191	char *p;
	192	STRLEN len;
	193	if ((p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
	194	RETVAL = fsetpos(handle, (Fpos_t*)p);
	195	}
	196	else {
	197	RETVAL = -1;
	198	errno = EINVAL;
	199	}
2a0cf753	200	#endif
766a733e	201	}
8add82fc	202	else {
	203	RETVAL = -1;
	204	errno = EINVAL;
	205	}
8add82fc	206	OUTPUT:
	207	RETVAL
	208
	209	MODULE = IO PACKAGE = IO::File PREFIX = f
	210
8063af02	211	void
8add82fc	212	new_tmpfile(packname = "IO::File")
3e946625	213	const char * packname
a375a877	214	PREINIT:
	215	OutputStream fp;
	216	GV *gv;
8add82fc	217	CODE:
2a0cf753	218	#ifdef PerlIO
a375a877	219	fp = PerlIO_tmpfile();
2a0cf753	220	#else
a375a877	221	fp = tmpfile();
2a0cf753	222	#endif
a375a877	223	gv = (GV*)SvREFCNT_inc(newGVgen(packname));
71cd1c3f	224	if (gv)
	225	hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD);
	226	if (gv && do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) {
6d5cdeed	227	ST(0) = sv_2mortal(newRV((SV*)gv));
a375a877	228	sv_bless(ST(0), gv_stashpv(packname, TRUE));
cf7fe8a2	229	SvREFCNT_dec(gv); /* undo increment in newRV() */
a375a877	230	}
a375a877	231	else {
a1ea39dc	232	ST(0) = &PL_sv_undef;
a375a877	233	SvREFCNT_dec(gv);
a375a877	234	}
8add82fc	235
cf7fe8a2	236	MODULE = IO PACKAGE = IO::Poll
cf7fe8a2	237
766a733e	238	void
cf7fe8a2	239	_poll(timeout,...)
	240	int timeout;
	241	PPCODE:
	242	{
	243	#ifdef HAS_POLL
7698c435	244	const int nfd = (items - 1) / 2;
cf7fe8a2	245	SV tmpsv = NEWSV(999,nfd sizeof(struct pollfd));
	246	struct pollfd fds = (struct pollfd )SvPVX(tmpsv);
	247	int i,j,ret;
	248	for(i=1, j=0 ; j < nfd ; j++) {
	249	fds[j].fd = SvIV(ST(i));
	250	i++;
7c436af3	251	fds[j].events = (short)SvIV(ST(i));
cf7fe8a2	252	i++;
	253	fds[j].revents = 0;
	254	}
	255	if((ret = poll(fds,nfd,timeout)) >= 0) {
	256	for(i=1, j=0 ; j < nfd ; j++) {
	257	sv_setiv(ST(i), fds[j].fd); i++;
	258	sv_setiv(ST(i), fds[j].revents); i++;
	259	}
	260	}
	261	SvREFCNT_dec(tmpsv);
	262	XSRETURN_IV(ret);
	263	#else
	264	not_here("IO::Poll::poll");
	265	#endif
	266	}
	267
	268	MODULE = IO PACKAGE = IO::Handle PREFIX = io_
	269
	270	void
	271	io_blocking(handle,blk=-1)
	272	InputStream handle
	273	int blk
	274	PROTOTYPE: $;$
	275	CODE:
	276	{
7698c435	277	const int ret = io_blocking(aTHX_ handle, items == 1 ? -1 : blk ? 1 : 0);
cf7fe8a2	278	if(ret >= 0)
	279	XSRETURN_IV(ret);
	280	else
	281	XSRETURN_UNDEF;
	282	}
	283
8add82fc	284	MODULE = IO PACKAGE = IO::Handle PREFIX = f
8add82fc	285
8add82fc	286	int
	287	ungetc(handle, c)
	288	InputStream handle
	289	int c
	290	CODE:
	291	if (handle)
2a0cf753	292	#ifdef PerlIO
760ac839	293	RETVAL = PerlIO_ungetc(handle, c);
2a0cf753	294	#else
	295	RETVAL = ungetc(c, handle);
	296	#endif
8add82fc	297	else {
	298	RETVAL = -1;
	299	errno = EINVAL;
	300	}
	301	OUTPUT:
	302	RETVAL
	303
	304	int
	305	ferror(handle)
	306	InputStream handle
	307	CODE:
	308	if (handle)
2a0cf753	309	#ifdef PerlIO
760ac839	310	RETVAL = PerlIO_error(handle);
2a0cf753	311	#else
	312	RETVAL = ferror(handle);
	313	#endif
	314	else {
	315	RETVAL = -1;
	316	errno = EINVAL;
	317	}
	318	OUTPUT:
	319	RETVAL
	320
	321	int
	322	clearerr(handle)
	323	InputStream handle
	324	CODE:
	325	if (handle) {
	326	#ifdef PerlIO
	327	PerlIO_clearerr(handle);
	328	#else
	329	clearerr(handle);
	330	#endif
	331	RETVAL = 0;
	332	}
8add82fc	333	else {
8add82fc	334	RETVAL = -1;
59629a13	335	errno = EINVAL;
	336	}
	337	OUTPUT:
	338	RETVAL
	339
	340	int
	341	untaint(handle)
	342	SV * handle
	343	CODE:
7a4c00b4	344	#ifdef IOf_UNTAINT
59629a13	345	IO * io;
	346	io = sv_2io(handle);
	347	if (io) {
	348	IoFLAGS(io) \|= IOf_UNTAINT;
	349	RETVAL = 0;
	350	}
	351	else {
7a4c00b4	352	#endif
59629a13	353	RETVAL = -1;
8add82fc	354	errno = EINVAL;
7a4c00b4	355	#ifdef IOf_UNTAINT
8add82fc	356	}
7a4c00b4	357	#endif
8add82fc	358	OUTPUT:
	359	RETVAL
	360
	361	SysRet
	362	fflush(handle)
	363	OutputStream handle
	364	CODE:
	365	if (handle)
2a0cf753	366	#ifdef PerlIO
760ac839	367	RETVAL = PerlIO_flush(handle);
2a0cf753	368	#else
	369	RETVAL = Fflush(handle);
	370	#endif
8add82fc	371	else {
	372	RETVAL = -1;
	373	errno = EINVAL;
	374	}
	375	OUTPUT:
	376	RETVAL
	377
	378	void
c46a0ec2	379	setbuf(handle, ...)
8add82fc	380	OutputStream handle
8add82fc	381	CODE:
8add82fc	382	if (handle)
760ac839	383	#ifdef PERLIO_IS_STDIO
c46a0ec2	384	{
	385	char *buf = items == 2 && SvPOK(ST(1)) ?
	386	sv_grow(ST(1), BUFSIZ) : 0;
8add82fc	387	setbuf(handle, buf);
c46a0ec2	388	}
760ac839	389	#else
	390	not_here("IO::Handle::setbuf");
	391	#endif
8add82fc	392
8add82fc	393	SysRet
c46a0ec2	394	setvbuf(...)
8add82fc	395	CODE:
c46a0ec2	396	if (items != 4)
c46a0ec2	397	Perl_croak(aTHX_ "Usage: IO::Handle::setvbuf(handle, buf, type, size)");
1eeb0f31	398	#if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF)
c46a0ec2	399	{
	400	OutputStream handle = 0;
	401	char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	402	int type;
	403	int size;
	404
	405	if (items == 4) {
	406	handle = IoOFP(sv_2io(ST(0)));
	407	buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	408	type = (int)SvIV(ST(2));
	409	size = (int)SvIV(ST(3));
	410	}
d924de76	411	if (!handle) /* Try input stream. */
d924de76	412	handle = IoIFP(sv_2io(ST(0)));
c46a0ec2	413	if (items == 4 && handle)
8add82fc	414	RETVAL = setvbuf(handle, buf, type, size);
	415	else {
	416	RETVAL = -1;
	417	errno = EINVAL;
	418	}
c46a0ec2	419	}
8add82fc	420	#else
61839fa9	421	RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
760ac839	422	#endif
8add82fc	423	OUTPUT:
	424	RETVAL
	425
	426
cf7fe8a2	427	SysRet
	428	fsync(handle)
	429	OutputStream handle
	430	CODE:
	431	#ifdef HAS_FSYNC
	432	if(handle)
	433	RETVAL = fsync(PerlIO_fileno(handle));
	434	else {
	435	RETVAL = -1;
	436	errno = EINVAL;
	437	}
	438	#else
	439	RETVAL = (SysRet) not_here("IO::Handle::sync");
	440	#endif
	441	OUTPUT:
	442	RETVAL
	443
	444
63a347c7	445	MODULE = IO PACKAGE = IO::Socket
	446
	447	SysRet
	448	sockatmark (sock)
	449	InputStream sock
	450	PROTOTYPE: $
	451	PREINIT:
06c912bc	452	int fd;
63a347c7	453	CODE:
	454	{
	455	fd = PerlIO_fileno(sock);
	456	#ifdef HAS_SOCKATMARK
06c912bc	457	RETVAL = sockatmark(fd);
63a347c7	458	#else
06c912bc	459	{
06c912bc	460	int flag = 0;
6d087280	461	# ifdef SIOCATMARK
6e22d046	462	# if defined(NETWARE) \|\| defined(WIN32)
2986a63f	463	if (ioctl(fd, SIOCATMARK, (void*)&flag) != 0)
f754b6e0	464	# else
	465	if (ioctl(fd, SIOCATMARK, &flag) != 0)
	466	# endif
06c912bc	467	XSRETURN_UNDEF;
63a347c7	468	# else
06c912bc	469	not_here("IO::Socket::atmark");
	470	# endif
	471	RETVAL = flag;
	472	}
63a347c7	473	#endif
	474	}
	475	OUTPUT:
	476	RETVAL
	477
cf7fe8a2	478	BOOT:
	479	{
	480	HV *stash;
	481	/*
	482	* constant subs for IO::Poll
	483	*/
	484	stash = gv_stashpvn("IO::Poll", 8, TRUE);
	485	#ifdef POLLIN
	486	newCONSTSUB(stash,"POLLIN",newSViv(POLLIN));
	487	#endif
	488	#ifdef POLLPRI
	489	newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI));
	490	#endif
	491	#ifdef POLLOUT
	492	newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT));
	493	#endif
	494	#ifdef POLLRDNORM
	495	newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM));
	496	#endif
	497	#ifdef POLLWRNORM
	498	newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM));
	499	#endif
	500	#ifdef POLLRDBAND
	501	newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND));
	502	#endif
	503	#ifdef POLLWRBAND
	504	newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND));
	505	#endif
	506	#ifdef POLLNORM
	507	newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM));
	508	#endif
	509	#ifdef POLLERR
	510	newCONSTSUB(stash,"POLLERR", newSViv(POLLERR));
	511	#endif
	512	#ifdef POLLHUP
	513	newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP));
	514	#endif
	515	#ifdef POLLNVAL
	516	newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL));
	517	#endif
	518	/*
	519	* constant subs for IO::Handle
	520	*/
	521	stash = gv_stashpvn("IO::Handle", 10, TRUE);
	522	#ifdef _IOFBF
	523	newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF));
	524	#endif
	525	#ifdef _IOLBF
	526	newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF));
	527	#endif
	528	#ifdef _IONBF
	529	newCONSTSUB(stash,"_IONBF", newSViv(_IONBF));
	530	#endif
	531	#ifdef SEEK_SET
	532	newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET));
	533	#endif
	534	#ifdef SEEK_CUR
	535	newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR));
	536	#endif
	537	#ifdef SEEK_END
	538	newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END));
	539	#endif
cf7fe8a2	540	}
63a347c7	541