[perl5.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
    return -1;
#endif
}

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

void
fgetpos(handle)
	InputStream	handle
    CODE:
	if (handle) {
#ifdef PerlIO
	    ST(0) = sv_newmortal();
#if PERL_VERSION < 8
	    Fpos_t pos;
	    if (PerlIO_getpos(handle, &pos) != 0) {
		ST(0) = &PL_sv_undef;
	    }
	    else {
		sv_setpvn(ST(0), (char *)&pos, sizeof(Fpos_t));
	    }
#else
	    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")
    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
    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 GS	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 JH	7	#define PERL_EXT_IO
6e22d046 JH	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 LW	19	# include <fcntl.h>
760ac839 LW	20	#endif
8add82fc	21
63a347c7 JH	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 JH	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 LW	37	typedef PerlIO * InputStream;
760ac839 LW	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 GS	47
	48	#ifndef gv_stashpvn
	49	#define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
	50	#endif
	51
35a60386 RGS	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 GS	68
	69	#ifndef PerlIO
	70	#define PerlIO_fileno(f) fileno(f)
8add82fc	71	#endif
cf7fe8a2 GS	72
cf7fe8a2 GS	73	static int
e87a358a	74	io_blocking(pTHX_ InputStream f, int block)
cf7fe8a2	75	{
91f3b821	76	#if defined(HAS_FCNTL)
cf7fe8a2 GS	77	int RETVAL;
	78	if(!f) {
	79	errno = EBADF;
	80	return -1;
	81	}
cf7fe8a2 GS	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 BD	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 JH	93	* after a successful F_SETFL of an O_NONBLOCK. */
	94	RETVAL = RETVAL & (O_NONBLOCK \| O_NDELAY) ? 0 : 1;
	95
3b2f3eeb BD	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 GS	103	/* Not POSIX - better have O_NDELAY or we can't cope.
cf7fe8a2 GS	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 GS	106	* the way SysV is...
	107	*/
	108	RETVAL = RETVAL & O_NDELAY ? 0 : 1;
	109
3b2f3eeb BD	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 GS	121	}
cf7fe8a2 GS	122	return RETVAL;
8add82fc	123	#else
91f3b821	124	return -1;
8add82fc	125	#endif
8add82fc	126	}
8add82fc	127
8add82fc	128	MODULE = IO PACKAGE = IO::Seekable PREFIX = f
8add82fc	129
8063af02	130	void
8add82fc	131	fgetpos(handle)
	132	InputStream handle
	133	CODE:
8add82fc	134	if (handle) {
2a0cf753	135	#ifdef PerlIO
35a60386 RGS	136	ST(0) = sv_newmortal();
	137	#if PERL_VERSION < 8
	138	Fpos_t pos;
	139	if (PerlIO_getpos(handle, &pos) != 0) {
	140	ST(0) = &PL_sv_undef;
	141	}
	142	else {
	143	sv_setpvn(ST(0), (char *)&pos, sizeof(Fpos_t));
	144	}
	145	#else
766a733e NIS	146	if (PerlIO_getpos(handle, ST(0)) != 0) {
	147	ST(0) = &PL_sv_undef;
	148	}
35a60386	149	#endif
2a0cf753	150	#else
35a60386	151	Fpos_t pos;
766a733e	152	if (fgetpos(handle, &pos)) {
a6a714bd NC	153	ST(0) = &PL_sv_undef;
a6a714bd NC	154	} else {
35a60386	155	ST(0) = sv_2mortal(newSVpvn((char*)&pos, sizeof(Fpos_t)));
a6a714bd	156	}
766a733e	157	#endif
8add82fc	158	}
8add82fc	159	else {
8add82fc	160	errno = EINVAL;
35a60386	161	ST(0) = &PL_sv_undef;
8add82fc	162	}
8add82fc	163
	164	SysRet
	165	fsetpos(handle, pos)
	166	InputStream handle
	167	SV * pos
	168	CODE:
766a733e	169	if (handle) {
2a0cf753	170	#ifdef PerlIO
35a60386 RGS	171	#if PERL_VERSION < 8
	172	char *p;
	173	STRLEN len;
	174	if (SvOK(pos) && (p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
	175	RETVAL = PerlIO_setpos(handle, (Fpos_t*)p);
	176	}
	177	else {
	178	RETVAL = -1;
	179	errno = EINVAL;
	180	}
	181	#else
766a733e	182	RETVAL = PerlIO_setpos(handle, pos);
35a60386	183	#endif
2a0cf753	184	#else
766a733e NIS	185	char *p;
	186	STRLEN len;
	187	if ((p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
	188	RETVAL = fsetpos(handle, (Fpos_t*)p);
	189	}
	190	else {
	191	RETVAL = -1;
	192	errno = EINVAL;
	193	}
2a0cf753	194	#endif
766a733e	195	}
8add82fc	196	else {
	197	RETVAL = -1;
	198	errno = EINVAL;
	199	}
8add82fc	200	OUTPUT:
	201	RETVAL
	202
	203	MODULE = IO PACKAGE = IO::File PREFIX = f
	204
8063af02	205	void
8add82fc	206	new_tmpfile(packname = "IO::File")
35a60386	207	char * packname
a375a877 GB	208	PREINIT:
	209	OutputStream fp;
	210	GV *gv;
8add82fc	211	CODE:
2a0cf753	212	#ifdef PerlIO
a375a877	213	fp = PerlIO_tmpfile();
2a0cf753	214	#else
a375a877	215	fp = tmpfile();
2a0cf753	216	#endif
a375a877 GB	217	gv = (GV*)SvREFCNT_inc(newGVgen(packname));
	218	hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD);
	219	if (do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) {
6d5cdeed	220	ST(0) = sv_2mortal(newRV((SV*)gv));
a375a877	221	sv_bless(ST(0), gv_stashpv(packname, TRUE));
cf7fe8a2	222	SvREFCNT_dec(gv); /* undo increment in newRV() */
a375a877 GB	223	}
a375a877 GB	224	else {
a1ea39dc	225	ST(0) = &PL_sv_undef;
a375a877 GB	226	SvREFCNT_dec(gv);
a375a877 GB	227	}
8add82fc	228
cf7fe8a2 GS	229	MODULE = IO PACKAGE = IO::Poll
cf7fe8a2 GS	230
766a733e	231	void
cf7fe8a2 GS	232	_poll(timeout,...)
	233	int timeout;
	234	PPCODE:
	235	{
	236	#ifdef HAS_POLL
7698c435	237	const int nfd = (items - 1) / 2;
cf7fe8a2 GS	238	SV tmpsv = NEWSV(999,nfd sizeof(struct pollfd));
	239	struct pollfd fds = (struct pollfd )SvPVX(tmpsv);
	240	int i,j,ret;
	241	for(i=1, j=0 ; j < nfd ; j++) {
	242	fds[j].fd = SvIV(ST(i));
	243	i++;
7c436af3	244	fds[j].events = (short)SvIV(ST(i));
cf7fe8a2 GS	245	i++;
	246	fds[j].revents = 0;
	247	}
	248	if((ret = poll(fds,nfd,timeout)) >= 0) {
	249	for(i=1, j=0 ; j < nfd ; j++) {
	250	sv_setiv(ST(i), fds[j].fd); i++;
	251	sv_setiv(ST(i), fds[j].revents); i++;
	252	}
	253	}
	254	SvREFCNT_dec(tmpsv);
	255	XSRETURN_IV(ret);
	256	#else
	257	not_here("IO::Poll::poll");
	258	#endif
	259	}
	260
	261	MODULE = IO PACKAGE = IO::Handle PREFIX = io_
	262
	263	void
	264	io_blocking(handle,blk=-1)
	265	InputStream handle
	266	int blk
	267	PROTOTYPE: $;$
	268	CODE:
	269	{
7698c435	270	const int ret = io_blocking(aTHX_ handle, items == 1 ? -1 : blk ? 1 : 0);
cf7fe8a2 GS	271	if(ret >= 0)
	272	XSRETURN_IV(ret);
	273	else
	274	XSRETURN_UNDEF;
	275	}
	276
8add82fc	277	MODULE = IO PACKAGE = IO::Handle PREFIX = f
8add82fc	278
8add82fc	279	int
	280	ungetc(handle, c)
	281	InputStream handle
	282	int c
	283	CODE:
	284	if (handle)
2a0cf753	285	#ifdef PerlIO
760ac839	286	RETVAL = PerlIO_ungetc(handle, c);
2a0cf753	287	#else
	288	RETVAL = ungetc(c, handle);
	289	#endif
8add82fc	290	else {
	291	RETVAL = -1;
	292	errno = EINVAL;
	293	}
	294	OUTPUT:
	295	RETVAL
	296
	297	int
	298	ferror(handle)
	299	InputStream handle
	300	CODE:
	301	if (handle)
2a0cf753	302	#ifdef PerlIO
760ac839	303	RETVAL = PerlIO_error(handle);
2a0cf753	304	#else
	305	RETVAL = ferror(handle);
	306	#endif
	307	else {
	308	RETVAL = -1;
	309	errno = EINVAL;
	310	}
	311	OUTPUT:
	312	RETVAL
	313
	314	int
	315	clearerr(handle)
	316	InputStream handle
	317	CODE:
	318	if (handle) {
	319	#ifdef PerlIO
	320	PerlIO_clearerr(handle);
	321	#else
	322	clearerr(handle);
	323	#endif
	324	RETVAL = 0;
	325	}
8add82fc	326	else {
8add82fc	327	RETVAL = -1;
59629a13 RR	328	errno = EINVAL;
	329	}
	330	OUTPUT:
	331	RETVAL
	332
	333	int
	334	untaint(handle)
	335	SV * handle
	336	CODE:
7a4c00b4	337	#ifdef IOf_UNTAINT
59629a13 RR	338	IO * io;
	339	io = sv_2io(handle);
	340	if (io) {
	341	IoFLAGS(io) \|= IOf_UNTAINT;
	342	RETVAL = 0;
	343	}
	344	else {
7a4c00b4	345	#endif
59629a13	346	RETVAL = -1;
8add82fc	347	errno = EINVAL;
7a4c00b4	348	#ifdef IOf_UNTAINT
8add82fc	349	}
7a4c00b4	350	#endif
8add82fc	351	OUTPUT:
	352	RETVAL
	353
	354	SysRet
	355	fflush(handle)
	356	OutputStream handle
	357	CODE:
	358	if (handle)
2a0cf753	359	#ifdef PerlIO
760ac839	360	RETVAL = PerlIO_flush(handle);
2a0cf753	361	#else
	362	RETVAL = Fflush(handle);
	363	#endif
8add82fc	364	else {
	365	RETVAL = -1;
	366	errno = EINVAL;
	367	}
	368	OUTPUT:
	369	RETVAL
	370
	371	void
c46a0ec2	372	setbuf(handle, ...)
8add82fc	373	OutputStream handle
8add82fc	374	CODE:
8add82fc	375	if (handle)
760ac839	376	#ifdef PERLIO_IS_STDIO
c46a0ec2 JH	377	{
	378	char *buf = items == 2 && SvPOK(ST(1)) ?
	379	sv_grow(ST(1), BUFSIZ) : 0;
8add82fc	380	setbuf(handle, buf);
c46a0ec2	381	}
760ac839 LW	382	#else
	383	not_here("IO::Handle::setbuf");
	384	#endif
8add82fc	385
8add82fc	386	SysRet
c46a0ec2	387	setvbuf(...)
8add82fc	388	CODE:
c46a0ec2 JH	389	if (items != 4)
c46a0ec2 JH	390	Perl_croak(aTHX_ "Usage: IO::Handle::setvbuf(handle, buf, type, size)");
1eeb0f31	391	#if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF)
c46a0ec2 JH	392	{
	393	OutputStream handle = 0;
	394	char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	395	int type;
	396	int size;
	397
	398	if (items == 4) {
	399	handle = IoOFP(sv_2io(ST(0)));
	400	buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	401	type = (int)SvIV(ST(2));
	402	size = (int)SvIV(ST(3));
	403	}
d924de76 IZ	404	if (!handle) /* Try input stream. */
d924de76 IZ	405	handle = IoIFP(sv_2io(ST(0)));
c46a0ec2	406	if (items == 4 && handle)
8add82fc	407	RETVAL = setvbuf(handle, buf, type, size);
	408	else {
	409	RETVAL = -1;
	410	errno = EINVAL;
	411	}
c46a0ec2	412	}
8add82fc	413	#else
61839fa9	414	RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
760ac839	415	#endif
8add82fc	416	OUTPUT:
	417	RETVAL
	418
	419
cf7fe8a2 GS	420	SysRet
	421	fsync(handle)
	422	OutputStream handle
	423	CODE:
	424	#ifdef HAS_FSYNC
	425	if(handle)
	426	RETVAL = fsync(PerlIO_fileno(handle));
	427	else {
	428	RETVAL = -1;
	429	errno = EINVAL;
	430	}
	431	#else
	432	RETVAL = (SysRet) not_here("IO::Handle::sync");
	433	#endif
	434	OUTPUT:
	435	RETVAL
	436
	437
63a347c7 JH	438	MODULE = IO PACKAGE = IO::Socket
	439
	440	SysRet
	441	sockatmark (sock)
	442	InputStream sock
	443	PROTOTYPE: $
	444	PREINIT:
06c912bc	445	int fd;
63a347c7 JH	446	CODE:
	447	{
	448	fd = PerlIO_fileno(sock);
	449	#ifdef HAS_SOCKATMARK
06c912bc	450	RETVAL = sockatmark(fd);
63a347c7	451	#else
06c912bc JH	452	{
06c912bc JH	453	int flag = 0;
6d087280	454	# ifdef SIOCATMARK
6e22d046	455	# if defined(NETWARE) \|\| defined(WIN32)
2986a63f	456	if (ioctl(fd, SIOCATMARK, (void*)&flag) != 0)
f754b6e0 GS	457	# else
	458	if (ioctl(fd, SIOCATMARK, &flag) != 0)
	459	# endif
06c912bc	460	XSRETURN_UNDEF;
63a347c7	461	# else
06c912bc JH	462	not_here("IO::Socket::atmark");
	463	# endif
	464	RETVAL = flag;
	465	}
63a347c7 JH	466	#endif
	467	}
	468	OUTPUT:
	469	RETVAL
	470
cf7fe8a2 GS	471	BOOT:
	472	{
	473	HV *stash;
	474	/*
	475	* constant subs for IO::Poll
	476	*/
	477	stash = gv_stashpvn("IO::Poll", 8, TRUE);
	478	#ifdef POLLIN
	479	newCONSTSUB(stash,"POLLIN",newSViv(POLLIN));
	480	#endif
	481	#ifdef POLLPRI
	482	newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI));
	483	#endif
	484	#ifdef POLLOUT
	485	newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT));
	486	#endif
	487	#ifdef POLLRDNORM
	488	newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM));
	489	#endif
	490	#ifdef POLLWRNORM
	491	newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM));
	492	#endif
	493	#ifdef POLLRDBAND
	494	newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND));
	495	#endif
	496	#ifdef POLLWRBAND
	497	newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND));
	498	#endif
	499	#ifdef POLLNORM
	500	newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM));
	501	#endif
	502	#ifdef POLLERR
	503	newCONSTSUB(stash,"POLLERR", newSViv(POLLERR));
	504	#endif
	505	#ifdef POLLHUP
	506	newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP));
	507	#endif
	508	#ifdef POLLNVAL
	509	newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL));
	510	#endif
	511	/*
	512	* constant subs for IO::Handle
	513	*/
	514	stash = gv_stashpvn("IO::Handle", 10, TRUE);
	515	#ifdef _IOFBF
	516	newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF));
	517	#endif
	518	#ifdef _IOLBF
	519	newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF));
	520	#endif
	521	#ifdef _IONBF
	522	newCONSTSUB(stash,"_IONBF", newSViv(_IONBF));
	523	#endif
	524	#ifdef SEEK_SET
	525	newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET));
	526	#endif
	527	#ifdef SEEK_CUR
	528	newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR));
	529	#endif
	530	#ifdef SEEK_END
	531	newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END));
	532	#endif
cf7fe8a2	533	}
63a347c7	534