[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.
 */

#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

#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

#include "patchlevel.h"

#if (PATCHLEVEL < 3) || ((PATCHLEVEL == 3) && (SUBVERSION < 22))
     /* before 5.003_22 */
#    define MY_start_subparse(fmt,flags) start_subparse()
#else
#  if (PATCHLEVEL == 3) && (SUBVERSION == 22)
     /* 5.003_22 */
#    define MY_start_subparse(fmt,flags) start_subparse(flags)
#  else
     /* 5.003_23  onwards */
#    define MY_start_subparse(fmt,flags) start_subparse(fmt,flags)
#  endif
#endif

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

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

#ifndef newCONSTSUB
/*
 * Define an XSUB that returns a constant scalar. The resulting structure is
 * identical to that created by the parser when it parses code like :
 *
 *    sub xyz () { 123 }
 *
 * This allows the constants from the XSUB to be inlined.
 *
 * !!! THIS SHOULD BE ADDED INTO THE CORE CODE !!!!
 *
 */
 
static void
newCONSTSUB(stash,name,sv)
    HV *stash;
    char *name;
    SV *sv;
{
#ifdef dTHR
    dTHR;
#endif
    U32 oldhints = hints;
    HV *old_cop_stash = curcop->cop_stash;
    HV *old_curstash = curstash;
    line_t oldline = curcop->cop_line;
    curcop->cop_line = copline;

    hints &= ~HINT_BLOCK_SCOPE;
    if(stash)
	curstash = curcop->cop_stash = stash;

    newSUB(
	MY_start_subparse(FALSE, 0),
	newSVOP(OP_CONST, 0, newSVpv(name,0)),
	newSVOP(OP_CONST, 0, &sv_no),	/* SvPV(&sv_no) == "" -- GMB */
	newSTATEOP(0, Nullch, newSVOP(OP_CONST, 0, sv))
    );

    hints = oldhints;
    curcop->cop_stash = old_cop_stash;
    curstash = old_curstash;
    curcop->cop_line = oldline;
}
#endif

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

static int
io_blocking(f,block)
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
	 */
	RETVAL = RETVAL & O_NONBLOCK ? 0 : 1;

	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

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

SysRet
fsetpos(handle, pos)
	InputStream	handle
	SV *		pos
    CODE:
	if (handle)
#ifdef PerlIO
	    RETVAL = PerlIO_setpos(handle, (Fpos_t*)SvPVX(pos));
#else
	    RETVAL = fsetpos(handle, (Fpos_t*)SvPVX(pos));
#endif
	else {
	    RETVAL = -1;
	    errno = EINVAL;
	}
    OUTPUT:
	RETVAL

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

SV *
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) = &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:
/* Should check HAS_SETVBUF once Configure tests for that */
#if defined(PERLIO_IS_STDIO) && defined(_IOFBF)
	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


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
    /*
     * constant subs for IO
     */
    stash = gv_stashpvn("IO", 2, TRUE);
#ifdef EINPROGRESS
        newCONSTSUB(stash,"EINPROGRESS", newSViv(EINPROGRESS));
#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
8add82fc	7	#include "EXTERN.h"
760ac839	8	#define PERLIO_NOT_STDIO 1
8add82fc	9	#include "perl.h"
8add82fc	10	#include "XSUB.h"
cf7fe8a2	11	#include "poll.h"
8add82fc	12	#ifdef I_UNISTD
	13	# include <unistd.h>
	14	#endif
cf7fe8a2	15	#if defined(I_FCNTL) \|\| defined(HAS_FCNTL)
760ac839	16	# include <fcntl.h>
760ac839	17	#endif
8add82fc	18
2a0cf753	19	#ifdef PerlIO
8add82fc	20	typedef int SysRet;
760ac839	21	typedef PerlIO * InputStream;
760ac839	22	typedef PerlIO * OutputStream;
2a0cf753	23	#else
	24	#define PERLIO_IS_STDIO 1
	25	typedef int SysRet;
	26	typedef FILE * InputStream;
	27	typedef FILE * OutputStream;
	28	#endif
8add82fc	29
cf7fe8a2	30	#include "patchlevel.h"
	31
	32	#if (PATCHLEVEL < 3) \|\| ((PATCHLEVEL == 3) && (SUBVERSION < 22))
	33	/* before 5.003_22 */
	34	# define MY_start_subparse(fmt,flags) start_subparse()
	35	#else
	36	# if (PATCHLEVEL == 3) && (SUBVERSION == 22)
	37	/* 5.003_22 */
	38	# define MY_start_subparse(fmt,flags) start_subparse(flags)
	39	# else
	40	/* 5.003_23 onwards */
	41	# define MY_start_subparse(fmt,flags) start_subparse(fmt,flags)
	42	# endif
	43	#endif
	44
	45	#ifndef gv_stashpvn
	46	#define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
	47	#endif
	48
8add82fc	49	static int
cf7fe8a2	50	not_here(s)
cf7fe8a2	51	char *s;
8add82fc	52	{
	53	croak("%s not implemented on this architecture", s);
	54	return -1;
	55	}
	56
cf7fe8a2	57	#ifndef newCONSTSUB
	58	/*
	59	* Define an XSUB that returns a constant scalar. The resulting structure is
	60	* identical to that created by the parser when it parses code like :
	61	*
	62	* sub xyz () { 123 }
	63	*
	64	* This allows the constants from the XSUB to be inlined.
	65	*
	66	* !!! THIS SHOULD BE ADDED INTO THE CORE CODE !!!!
	67	*
	68	*/
	69
	70	static void
	71	newCONSTSUB(stash,name,sv)
	72	HV *stash;
	73	char *name;
	74	SV *sv;
8add82fc	75	{
cf7fe8a2	76	#ifdef dTHR
cf7fe8a2	77	dTHR;
8add82fc	78	#endif
cf7fe8a2	79	U32 oldhints = hints;
	80	HV *old_cop_stash = curcop->cop_stash;
	81	HV *old_curstash = curstash;
	82	line_t oldline = curcop->cop_line;
	83	curcop->cop_line = copline;
	84
	85	hints &= ~HINT_BLOCK_SCOPE;
	86	if(stash)
	87	curstash = curcop->cop_stash = stash;
	88
	89	newSUB(
	90	MY_start_subparse(FALSE, 0),
	91	newSVOP(OP_CONST, 0, newSVpv(name,0)),
	92	newSVOP(OP_CONST, 0, &sv_no), /* SvPV(&sv_no) == "" -- GMB */
	93	newSTATEOP(0, Nullch, newSVOP(OP_CONST, 0, sv))
	94	);
	95
	96	hints = oldhints;
	97	curcop->cop_stash = old_cop_stash;
	98	curstash = old_curstash;
	99	curcop->cop_line = oldline;
	100	}
8add82fc	101	#endif
cf7fe8a2	102
	103	#ifndef PerlIO
	104	#define PerlIO_fileno(f) fileno(f)
8add82fc	105	#endif
cf7fe8a2	106
	107	static int
	108	io_blocking(f,block)
	109	InputStream f;
	110	int block;
	111	{
	112	int RETVAL;
	113	if(!f) {
	114	errno = EBADF;
	115	return -1;
	116	}
	117	#if defined(HAS_FCNTL)
	118	RETVAL = fcntl(PerlIO_fileno(f), F_GETFL, 0);
	119	if (RETVAL >= 0) {
	120	int mode = RETVAL;
	121	#ifdef O_NONBLOCK
	122	/* POSIX style */
	123	#if defined(O_NDELAY) && O_NDELAY != O_NONBLOCK
	124	/* Ooops has O_NDELAY too - make sure we don't
	125	* get SysV behaviour by mistake
	126	*/
	127	RETVAL = RETVAL & O_NONBLOCK ? 0 : 1;
	128
	129	if ((mode & O_NDELAY) \|\| ((block == 0) && !(mode & O_NONBLOCK))) {
	130	int ret;
	131	mode = (mode & ~O_NDELAY) \| O_NONBLOCK;
	132	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	133	if(ret < 0)
	134	RETVAL = ret;
	135	}
	136	else if ((mode & O_NDELAY) \|\| ((block > 0) && (mode & O_NONBLOCK))) {
	137	int ret;
	138	mode &= ~(O_NONBLOCK \| O_NDELAY);
	139	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	140	if(ret < 0)
	141	RETVAL = ret;
	142	}
8add82fc	143	#else
cf7fe8a2	144	/* Standard POSIX */
	145	RETVAL = RETVAL & O_NONBLOCK ? 0 : 1;
	146
	147	if ((block == 0) && !(mode & O_NONBLOCK)) {
	148	int ret;
	149	mode \|= O_NONBLOCK;
	150	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	151	if(ret < 0)
	152	RETVAL = ret;
	153	}
	154	else if ((block > 0) && (mode & O_NONBLOCK)) {
	155	int ret;
	156	mode &= ~O_NONBLOCK;
	157	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	158	if(ret < 0)
	159	RETVAL = ret;
	160	}
	161	#endif
8add82fc	162	#else
cf7fe8a2	163	/* Not POSIX - better have O_NDELAY or we can't cope.
	164	* for BSD-ish machines this is an acceptable alternative
	165	* for SysV we can't tell "would block" from EOF but that is
	166	* the way SysV is...
	167	*/
	168	RETVAL = RETVAL & O_NDELAY ? 0 : 1;
	169
	170	if ((block == 0) && !(mode & O_NDELAY)) {
	171	int ret;
	172	mode \|= O_NDELAY;
	173	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	174	if(ret < 0)
	175	RETVAL = ret;
	176	}
	177	else if ((block > 0) && (mode & O_NDELAY)) {
	178	int ret;
	179	mode &= ~O_NDELAY;
	180	ret = fcntl(PerlIO_fileno(f),F_SETFL,mode);
	181	if(ret < 0)
	182	RETVAL = ret;
	183	}
8add82fc	184	#endif
cf7fe8a2	185	}
cf7fe8a2	186	return RETVAL;
8add82fc	187	#else
cf7fe8a2	188	return -1;
8add82fc	189	#endif
8add82fc	190	}
8add82fc	191
8add82fc	192	MODULE = IO PACKAGE = IO::Seekable PREFIX = f
	193
	194	SV *
	195	fgetpos(handle)
	196	InputStream handle
	197	CODE:
8add82fc	198	if (handle) {
8add82fc	199	Fpos_t pos;
2a0cf753	200	#ifdef PerlIO
760ac839	201	PerlIO_getpos(handle, &pos);
2a0cf753	202	#else
	203	fgetpos(handle, &pos);
	204	#endif
8add82fc	205	ST(0) = sv_2mortal(newSVpv((char*)&pos, sizeof(Fpos_t)));
	206	}
	207	else {
cf7fe8a2	208	ST(0) = &sv_undef;
8add82fc	209	errno = EINVAL;
8add82fc	210	}
8add82fc	211
	212	SysRet
	213	fsetpos(handle, pos)
	214	InputStream handle
	215	SV * pos
	216	CODE:
cf7fe8a2	217	if (handle)
2a0cf753	218	#ifdef PerlIO
cf7fe8a2	219	RETVAL = PerlIO_setpos(handle, (Fpos_t*)SvPVX(pos));
2a0cf753	220	#else
cf7fe8a2	221	RETVAL = fsetpos(handle, (Fpos_t*)SvPVX(pos));
2a0cf753	222	#endif
8add82fc	223	else {
	224	RETVAL = -1;
	225	errno = EINVAL;
	226	}
8add82fc	227	OUTPUT:
	228	RETVAL
	229
	230	MODULE = IO PACKAGE = IO::File PREFIX = f
	231
a375a877	232	SV *
8add82fc	233	new_tmpfile(packname = "IO::File")
8add82fc	234	char * packname
a375a877	235	PREINIT:
	236	OutputStream fp;
	237	GV *gv;
8add82fc	238	CODE:
2a0cf753	239	#ifdef PerlIO
a375a877	240	fp = PerlIO_tmpfile();
2a0cf753	241	#else
a375a877	242	fp = tmpfile();
2a0cf753	243	#endif
a375a877	244	gv = (GV*)SvREFCNT_inc(newGVgen(packname));
	245	hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD);
	246	if (do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) {
6d5cdeed	247	ST(0) = sv_2mortal(newRV((SV*)gv));
a375a877	248	sv_bless(ST(0), gv_stashpv(packname, TRUE));
cf7fe8a2	249	SvREFCNT_dec(gv); /* undo increment in newRV() */
a375a877	250	}
a375a877	251	else {
cf7fe8a2	252	ST(0) = &sv_undef;
a375a877	253	SvREFCNT_dec(gv);
a375a877	254	}
8add82fc	255
cf7fe8a2	256	MODULE = IO PACKAGE = IO::Poll
	257
	258	void
	259	_poll(timeout,...)
	260	int timeout;
	261	PPCODE:
	262	{
	263	#ifdef HAS_POLL
	264	int nfd = (items - 1) / 2;
	265	SV tmpsv = NEWSV(999,nfd sizeof(struct pollfd));
	266	struct pollfd fds = (struct pollfd )SvPVX(tmpsv);
	267	int i,j,ret;
	268	for(i=1, j=0 ; j < nfd ; j++) {
	269	fds[j].fd = SvIV(ST(i));
	270	i++;
	271	fds[j].events = SvIV(ST(i));
	272	i++;
	273	fds[j].revents = 0;
	274	}
	275	if((ret = poll(fds,nfd,timeout)) >= 0) {
	276	for(i=1, j=0 ; j < nfd ; j++) {
	277	sv_setiv(ST(i), fds[j].fd); i++;
	278	sv_setiv(ST(i), fds[j].revents); i++;
	279	}
	280	}
	281	SvREFCNT_dec(tmpsv);
	282	XSRETURN_IV(ret);
	283	#else
	284	not_here("IO::Poll::poll");
	285	#endif
	286	}
	287
	288	MODULE = IO PACKAGE = IO::Handle PREFIX = io_
	289
	290	void
	291	io_blocking(handle,blk=-1)
	292	InputStream handle
	293	int blk
	294	PROTOTYPE: $;$
	295	CODE:
	296	{
	297	int ret = io_blocking(handle, items == 1 ? -1 : blk ? 1 : 0);
	298	if(ret >= 0)
	299	XSRETURN_IV(ret);
	300	else
	301	XSRETURN_UNDEF;
	302	}
	303
8add82fc	304	MODULE = IO PACKAGE = IO::Handle PREFIX = f
8add82fc	305
8add82fc	306
	307	int
	308	ungetc(handle, c)
	309	InputStream handle
	310	int c
	311	CODE:
	312	if (handle)
2a0cf753	313	#ifdef PerlIO
760ac839	314	RETVAL = PerlIO_ungetc(handle, c);
2a0cf753	315	#else
	316	RETVAL = ungetc(c, handle);
	317	#endif
8add82fc	318	else {
	319	RETVAL = -1;
	320	errno = EINVAL;
	321	}
	322	OUTPUT:
	323	RETVAL
	324
	325	int
	326	ferror(handle)
	327	InputStream handle
	328	CODE:
	329	if (handle)
2a0cf753	330	#ifdef PerlIO
760ac839	331	RETVAL = PerlIO_error(handle);
2a0cf753	332	#else
	333	RETVAL = ferror(handle);
	334	#endif
	335	else {
	336	RETVAL = -1;
	337	errno = EINVAL;
	338	}
	339	OUTPUT:
	340	RETVAL
	341
	342	int
	343	clearerr(handle)
	344	InputStream handle
	345	CODE:
	346	if (handle) {
	347	#ifdef PerlIO
	348	PerlIO_clearerr(handle);
	349	#else
	350	clearerr(handle);
	351	#endif
	352	RETVAL = 0;
	353	}
8add82fc	354	else {
8add82fc	355	RETVAL = -1;
59629a13	356	errno = EINVAL;
	357	}
	358	OUTPUT:
	359	RETVAL
	360
	361	int
	362	untaint(handle)
	363	SV * handle
	364	CODE:
7a4c00b4	365	#ifdef IOf_UNTAINT
59629a13	366	IO * io;
	367	io = sv_2io(handle);
	368	if (io) {
	369	IoFLAGS(io) \|= IOf_UNTAINT;
	370	RETVAL = 0;
	371	}
	372	else {
7a4c00b4	373	#endif
59629a13	374	RETVAL = -1;
8add82fc	375	errno = EINVAL;
7a4c00b4	376	#ifdef IOf_UNTAINT
8add82fc	377	}
7a4c00b4	378	#endif
8add82fc	379	OUTPUT:
	380	RETVAL
	381
	382	SysRet
	383	fflush(handle)
	384	OutputStream handle
	385	CODE:
	386	if (handle)
2a0cf753	387	#ifdef PerlIO
760ac839	388	RETVAL = PerlIO_flush(handle);
2a0cf753	389	#else
	390	RETVAL = Fflush(handle);
	391	#endif
8add82fc	392	else {
	393	RETVAL = -1;
	394	errno = EINVAL;
	395	}
	396	OUTPUT:
	397	RETVAL
	398
	399	void
	400	setbuf(handle, buf)
	401	OutputStream handle
	402	char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), BUFSIZ) : 0;
	403	CODE:
	404	if (handle)
760ac839	405	#ifdef PERLIO_IS_STDIO
8add82fc	406	setbuf(handle, buf);
760ac839	407	#else
	408	not_here("IO::Handle::setbuf");
	409	#endif
8add82fc	410
	411	SysRet
	412	setvbuf(handle, buf, type, size)
	413	OutputStream handle
	414	char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
	415	int type
	416	int size
	417	CODE:
61839fa9	418	/* Should check HAS_SETVBUF once Configure tests for that */
61839fa9	419	#if defined(PERLIO_IS_STDIO) && defined(_IOFBF)
d924de76	420	if (!handle) /* Try input stream. */
d924de76	421	handle = IoIFP(sv_2io(ST(0)));
8add82fc	422	if (handle)
	423	RETVAL = setvbuf(handle, buf, type, size);
	424	else {
	425	RETVAL = -1;
	426	errno = EINVAL;
	427	}
	428	#else
61839fa9	429	RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
760ac839	430	#endif
8add82fc	431	OUTPUT:
	432	RETVAL
	433
	434
cf7fe8a2	435	SysRet
	436	fsync(handle)
	437	OutputStream handle
	438	CODE:
	439	#ifdef HAS_FSYNC
	440	if(handle)
	441	RETVAL = fsync(PerlIO_fileno(handle));
	442	else {
	443	RETVAL = -1;
	444	errno = EINVAL;
	445	}
	446	#else
	447	RETVAL = (SysRet) not_here("IO::Handle::sync");
	448	#endif
	449	OUTPUT:
	450	RETVAL
	451
	452
	453	BOOT:
	454	{
	455	HV *stash;
	456	/*
	457	* constant subs for IO::Poll
	458	*/
	459	stash = gv_stashpvn("IO::Poll", 8, TRUE);
	460	#ifdef POLLIN
	461	newCONSTSUB(stash,"POLLIN",newSViv(POLLIN));
	462	#endif
	463	#ifdef POLLPRI
	464	newCONSTSUB(stash,"POLLPRI", newSViv(POLLPRI));
	465	#endif
	466	#ifdef POLLOUT
	467	newCONSTSUB(stash,"POLLOUT", newSViv(POLLOUT));
	468	#endif
	469	#ifdef POLLRDNORM
	470	newCONSTSUB(stash,"POLLRDNORM", newSViv(POLLRDNORM));
	471	#endif
	472	#ifdef POLLWRNORM
	473	newCONSTSUB(stash,"POLLWRNORM", newSViv(POLLWRNORM));
	474	#endif
	475	#ifdef POLLRDBAND
	476	newCONSTSUB(stash,"POLLRDBAND", newSViv(POLLRDBAND));
	477	#endif
	478	#ifdef POLLWRBAND
	479	newCONSTSUB(stash,"POLLWRBAND", newSViv(POLLWRBAND));
	480	#endif
	481	#ifdef POLLNORM
	482	newCONSTSUB(stash,"POLLNORM", newSViv(POLLNORM));
	483	#endif
	484	#ifdef POLLERR
	485	newCONSTSUB(stash,"POLLERR", newSViv(POLLERR));
	486	#endif
	487	#ifdef POLLHUP
	488	newCONSTSUB(stash,"POLLHUP", newSViv(POLLHUP));
	489	#endif
	490	#ifdef POLLNVAL
	491	newCONSTSUB(stash,"POLLNVAL", newSViv(POLLNVAL));
	492	#endif
	493	/*
	494	* constant subs for IO::Handle
	495	*/
	496	stash = gv_stashpvn("IO::Handle", 10, TRUE);
	497	#ifdef _IOFBF
	498	newCONSTSUB(stash,"_IOFBF", newSViv(_IOFBF));
499	#endif
500	#ifdef _IOLBF
501	newCONSTSUB(stash,"_IOLBF", newSViv(_IOLBF));
502	#endif
503	#ifdef _IONBF
504	newCONSTSUB(stash,"_IONBF", newSViv(_IONBF));
505	#endif
506	#ifdef SEEK_SET
507	newCONSTSUB(stash,"SEEK_SET", newSViv(SEEK_SET));
508	#endif
509	#ifdef SEEK_CUR
510	newCONSTSUB(stash,"SEEK_CUR", newSViv(SEEK_CUR));
511	#endif
512	#ifdef SEEK_END
513	newCONSTSUB(stash,"SEEK_END", newSViv(SEEK_END));
514	#endif
515	/*
516	* constant subs for IO
517	*/
518	stash = gv_stashpvn("IO", 2, TRUE);
519	#ifdef EINPROGRESS
520	newCONSTSUB(stash,"EINPROGRESS", newSViv(EINPROGRESS));
521	#endif
522	}