673 lines
14 KiB
Plaintext
673 lines
14 KiB
Plaintext
/*
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* Copyright (c) 1997-8 Graham Barr <gbarr@pobox.com>. All rights reserved.
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* This program is free software; you can redistribute it and/or
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* modify it under the same terms as Perl itself.
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*/
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#define PERL_EXT_IO
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#define PERL_NO_GET_CONTEXT
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#include "EXTERN.h"
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#define PERLIO_NOT_STDIO 1
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#include "perl.h"
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#include "XSUB.h"
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#define NEED_eval_pv
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#define NEED_newCONSTSUB
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#define NEED_newSVpvn_flags
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#include "ppport.h"
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#include "poll.h"
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#ifdef I_UNISTD
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# include <unistd.h>
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#endif
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#if defined(I_FCNTL) || defined(HAS_FCNTL)
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# include <fcntl.h>
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#endif
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#ifndef SIOCATMARK
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# ifdef I_SYS_SOCKIO
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# include <sys/sockio.h>
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# endif
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#endif
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#ifdef PerlIO
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#if defined(MACOS_TRADITIONAL) && defined(USE_SFIO)
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#define PERLIO_IS_STDIO 1
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#undef setbuf
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#undef setvbuf
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#define setvbuf _stdsetvbuf
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#define setbuf(f,b) ( __sf_setbuf(f,b) )
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#endif
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typedef int SysRet;
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typedef PerlIO * InputStream;
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typedef PerlIO * OutputStream;
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#else
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#define PERLIO_IS_STDIO 1
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typedef int SysRet;
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typedef FILE * InputStream;
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typedef FILE * OutputStream;
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#endif
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#define MY_start_subparse(fmt,flags) start_subparse(fmt,flags)
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#ifndef gv_stashpvn
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#define gv_stashpvn(str,len,flags) gv_stashpv(str,flags)
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#endif
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#ifndef __attribute__noreturn__
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# define __attribute__noreturn__
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#endif
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#ifndef NORETURN_FUNCTION_END
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# define NORETURN_FUNCTION_END /* NOT REACHED */ return 0
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#endif
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#ifndef dVAR
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# define dVAR dNOOP
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#endif
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#ifndef OpSIBLING
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# define OpSIBLING(o) (o)->op_sibling
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#endif
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static int not_here(const char *s) __attribute__noreturn__;
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static int
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not_here(const char *s)
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{
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croak("%s not implemented on this architecture", s);
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NORETURN_FUNCTION_END;
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}
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#ifndef UVCHR_IS_INVARIANT /* For use with Perls without this macro */
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# if ('A' == 65)
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# define UVCHR_IS_INVARIANT(cp) ((cp) < 128)
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# elif (defined(NATIVE_IS_INVARIANT)) /* EBCDIC on old Perl */
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# define UVCHR_IS_INVARIANT(cp) ((cp) < 256 && NATIVE_IS_INVARIANT(cp))
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# elif defined(isASCII) /* EBCDIC on very old Perl */
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/* In EBCDIC, the invariants are the code points corresponding to ASCII,
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* plus all the controls. All but one EBCDIC control is below SPACE; it
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* varies depending on the code page, determined by the ord of '^' */
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# define UVCHR_IS_INVARIANT(cp) (isASCII(cp) \
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|| (cp) < ' ' \
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|| (('^' == 106) /* POSIX-BC */ \
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? (cp) == 95 \
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: (cp) == 0xFF)) /* 1047 or 037 */
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# else /* EBCDIC on very very old Perl */
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/* This assumes isascii() is available, but that could be fixed by
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* having the macro test for each printable ASCII char */
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# define UVCHR_IS_INVARIANT(cp) (isascii(cp) \
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|| (cp) < ' ' \
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|| (('^' == 106) /* POSIX-BC */ \
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? (cp) == 95 \
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: (cp) == 0xFF)) /* 1047 or 037 */
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# endif
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#endif
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#ifndef PerlIO
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#define PerlIO_fileno(f) fileno(f)
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#endif
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static int
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io_blocking(pTHX_ InputStream f, int block)
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{
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int fd = -1;
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#if defined(HAS_FCNTL)
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int RETVAL;
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if (!f) {
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errno = EBADF;
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return -1;
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}
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fd = PerlIO_fileno(f);
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if (fd < 0) {
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errno = EBADF;
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return -1;
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}
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RETVAL = fcntl(fd, F_GETFL, 0);
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if (RETVAL >= 0) {
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int mode = RETVAL;
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int newmode = mode;
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#ifdef O_NONBLOCK
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/* POSIX style */
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# ifndef O_NDELAY
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# define O_NDELAY O_NONBLOCK
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# endif
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/* Note: UNICOS and UNICOS/mk a F_GETFL returns an O_NDELAY
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* after a successful F_SETFL of an O_NONBLOCK. */
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RETVAL = RETVAL & (O_NONBLOCK | O_NDELAY) ? 0 : 1;
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if (block == 0) {
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newmode &= ~O_NDELAY;
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newmode |= O_NONBLOCK;
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} else if (block > 0) {
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newmode &= ~(O_NDELAY|O_NONBLOCK);
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}
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#else
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/* Not POSIX - better have O_NDELAY or we can't cope.
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* for BSD-ish machines this is an acceptable alternative
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* for SysV we can't tell "would block" from EOF but that is
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* the way SysV is...
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*/
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RETVAL = RETVAL & O_NDELAY ? 0 : 1;
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if (block == 0) {
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newmode |= O_NDELAY;
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} else if (block > 0) {
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newmode &= ~O_NDELAY;
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}
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#endif
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if (newmode != mode) {
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const int ret = fcntl(fd, F_SETFL, newmode);
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if (ret < 0)
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RETVAL = ret;
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}
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}
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return RETVAL;
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#else
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# ifdef WIN32
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if (block >= 0) {
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unsigned long flags = !block;
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/* ioctl claims to take char* but really needs a u_long sized buffer */
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const int ret = ioctl(fd, FIONBIO, (char*)&flags);
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if (ret != 0)
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return -1;
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/* Win32 has no way to get the current blocking status of a socket.
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* However, we don't want to just return undef, because there's no way
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* to tell that the ioctl succeeded.
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*/
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return flags;
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}
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/* TODO: Perhaps set $! to ENOTSUP? */
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return -1;
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# else
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return -1;
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# endif
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#endif
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}
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static OP *
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io_pp_nextstate(pTHX)
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{
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dVAR;
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COP *old_curcop = PL_curcop;
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OP *next = PL_ppaddr[PL_op->op_type](aTHX);
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PL_curcop = old_curcop;
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return next;
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}
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static OP *
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io_ck_lineseq(pTHX_ OP *o)
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{
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OP *kid = cBINOPo->op_first;
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for (; kid; kid = OpSIBLING(kid))
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if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE)
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kid->op_ppaddr = io_pp_nextstate;
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return o;
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}
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MODULE = IO PACKAGE = IO::Seekable PREFIX = f
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void
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fgetpos(handle)
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InputStream handle
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CODE:
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if (handle) {
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#ifdef PerlIO
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#if PERL_VERSION < 8
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Fpos_t pos;
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ST(0) = sv_newmortal();
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if (PerlIO_getpos(handle, &pos) != 0) {
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ST(0) = &PL_sv_undef;
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}
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else {
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sv_setpvn(ST(0), (char *)&pos, sizeof(Fpos_t));
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}
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#else
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ST(0) = sv_newmortal();
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if (PerlIO_getpos(handle, ST(0)) != 0) {
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ST(0) = &PL_sv_undef;
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}
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#endif
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#else
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Fpos_t pos;
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if (fgetpos(handle, &pos)) {
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ST(0) = &PL_sv_undef;
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} else {
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# if PERL_VERSION >= 11
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ST(0) = newSVpvn_flags((char*)&pos, sizeof(Fpos_t), SVs_TEMP);
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# else
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ST(0) = sv_2mortal(newSVpvn((char*)&pos, sizeof(Fpos_t)));
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# endif
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}
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#endif
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}
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else {
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errno = EINVAL;
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ST(0) = &PL_sv_undef;
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}
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SysRet
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fsetpos(handle, pos)
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InputStream handle
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SV * pos
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CODE:
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if (handle) {
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#ifdef PerlIO
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#if PERL_VERSION < 8
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char *p;
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STRLEN len;
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if (SvOK(pos) && (p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
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RETVAL = PerlIO_setpos(handle, (Fpos_t*)p);
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}
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else {
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RETVAL = -1;
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errno = EINVAL;
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}
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#else
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RETVAL = PerlIO_setpos(handle, pos);
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#endif
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#else
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char *p;
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STRLEN len;
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if ((p = SvPV(pos,len)) && len == sizeof(Fpos_t)) {
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RETVAL = fsetpos(handle, (Fpos_t*)p);
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}
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else {
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RETVAL = -1;
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errno = EINVAL;
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}
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#endif
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}
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else {
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RETVAL = -1;
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errno = EINVAL;
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}
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OUTPUT:
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RETVAL
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MODULE = IO PACKAGE = IO::File PREFIX = f
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void
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new_tmpfile(packname = "IO::File")
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const char * packname
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PREINIT:
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OutputStream fp;
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GV *gv;
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CODE:
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#ifdef PerlIO
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fp = PerlIO_tmpfile();
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#else
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fp = tmpfile();
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#endif
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gv = (GV*)SvREFCNT_inc(newGVgen(packname));
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if (gv)
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(void) hv_delete(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), G_DISCARD);
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if (gv && do_open(gv, "+>&", 3, FALSE, 0, 0, fp)) {
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ST(0) = sv_2mortal(newRV((SV*)gv));
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sv_bless(ST(0), gv_stashpv(packname, TRUE));
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SvREFCNT_dec(gv); /* undo increment in newRV() */
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}
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else {
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ST(0) = &PL_sv_undef;
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SvREFCNT_dec(gv);
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}
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MODULE = IO PACKAGE = IO::Poll
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void
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_poll(timeout,...)
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int timeout;
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PPCODE:
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{
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#ifdef HAS_POLL
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const int nfd = (items - 1) / 2;
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SV *tmpsv = sv_2mortal(NEWSV(999,nfd * sizeof(struct pollfd)));
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/* We should pass _some_ valid pointer even if nfd is zero, but it
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* doesn't matter what it is, since we're telling it to not check any fds.
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*/
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struct pollfd *fds = nfd ? (struct pollfd *)SvPVX(tmpsv) : (struct pollfd *)tmpsv;
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int i,j,ret;
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for(i=1, j=0 ; j < nfd ; j++) {
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fds[j].fd = SvIV(ST(i));
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i++;
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fds[j].events = (short)SvIV(ST(i));
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i++;
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fds[j].revents = 0;
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}
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if((ret = poll(fds,nfd,timeout)) >= 0) {
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for(i=1, j=0 ; j < nfd ; j++) {
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sv_setiv(ST(i), fds[j].fd); i++;
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sv_setiv(ST(i), fds[j].revents); i++;
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}
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}
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XSRETURN_IV(ret);
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#else
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not_here("IO::Poll::poll");
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#endif
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}
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MODULE = IO PACKAGE = IO::Handle PREFIX = io_
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void
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io_blocking(handle,blk=-1)
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InputStream handle
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int blk
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PROTOTYPE: $;$
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CODE:
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{
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const int ret = io_blocking(aTHX_ handle, items == 1 ? -1 : blk ? 1 : 0);
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if(ret >= 0)
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XSRETURN_IV(ret);
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else
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XSRETURN_UNDEF;
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}
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MODULE = IO PACKAGE = IO::Handle PREFIX = f
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int
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ungetc(handle, c)
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InputStream handle
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SV * c
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CODE:
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if (handle) {
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#ifdef PerlIO
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UV v;
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if ((SvIOK_notUV(c) && SvIV(c) < 0) || (SvNOK(c) && SvNV(c) < 0.0))
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croak("Negative character number in ungetc()");
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v = SvUV(c);
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if (UVCHR_IS_INVARIANT(v) || (v <= 0xFF && !PerlIO_isutf8(handle)))
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RETVAL = PerlIO_ungetc(handle, (int)v);
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else {
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U8 buf[UTF8_MAXBYTES + 1], *end;
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Size_t len;
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if (!PerlIO_isutf8(handle))
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croak("Wide character number in ungetc()");
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/* This doesn't warn for non-chars, surrogate, and
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* above-Unicodes */
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end = uvchr_to_utf8_flags(buf, v, 0);
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len = end - buf;
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if ((Size_t)PerlIO_unread(handle, &buf, len) == len)
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XSRETURN_UV(v);
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else
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RETVAL = EOF;
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}
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#else
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RETVAL = ungetc((int)SvIV(c), handle);
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#endif
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}
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else {
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RETVAL = -1;
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errno = EINVAL;
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}
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OUTPUT:
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RETVAL
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int
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ferror(handle)
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InputStream handle
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CODE:
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if (handle)
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#ifdef PerlIO
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RETVAL = PerlIO_error(handle);
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#else
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RETVAL = ferror(handle);
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#endif
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else {
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RETVAL = -1;
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errno = EINVAL;
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}
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OUTPUT:
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RETVAL
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int
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clearerr(handle)
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InputStream handle
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CODE:
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if (handle) {
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#ifdef PerlIO
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PerlIO_clearerr(handle);
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#else
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clearerr(handle);
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#endif
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RETVAL = 0;
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}
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else {
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RETVAL = -1;
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errno = EINVAL;
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}
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OUTPUT:
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RETVAL
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int
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untaint(handle)
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SV * handle
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CODE:
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#ifdef IOf_UNTAINT
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IO * io;
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io = sv_2io(handle);
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if (io) {
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IoFLAGS(io) |= IOf_UNTAINT;
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RETVAL = 0;
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}
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else {
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#endif
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RETVAL = -1;
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errno = EINVAL;
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#ifdef IOf_UNTAINT
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}
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#endif
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OUTPUT:
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RETVAL
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SysRet
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fflush(handle)
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OutputStream handle
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CODE:
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if (handle)
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#ifdef PerlIO
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RETVAL = PerlIO_flush(handle);
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#else
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RETVAL = Fflush(handle);
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#endif
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else {
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RETVAL = -1;
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errno = EINVAL;
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}
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OUTPUT:
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RETVAL
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void
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setbuf(handle, ...)
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OutputStream handle
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CODE:
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if (handle)
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#ifdef PERLIO_IS_STDIO
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{
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char *buf = items == 2 && SvPOK(ST(1)) ?
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sv_grow(ST(1), BUFSIZ) : 0;
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setbuf(handle, buf);
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}
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#else
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not_here("IO::Handle::setbuf");
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#endif
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SysRet
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setvbuf(...)
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CODE:
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if (items != 4)
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Perl_croak(aTHX_ "Usage: IO::Handle::setvbuf(handle, buf, type, size)");
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#if defined(PERLIO_IS_STDIO) && defined(_IOFBF) && defined(HAS_SETVBUF)
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{
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OutputStream handle = 0;
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char * buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
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int type;
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int size;
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if (items == 4) {
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handle = IoOFP(sv_2io(ST(0)));
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buf = SvPOK(ST(1)) ? sv_grow(ST(1), SvIV(ST(3))) : 0;
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type = (int)SvIV(ST(2));
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size = (int)SvIV(ST(3));
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}
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if (!handle) /* Try input stream. */
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handle = IoIFP(sv_2io(ST(0)));
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if (items == 4 && handle)
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RETVAL = setvbuf(handle, buf, type, size);
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else {
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RETVAL = -1;
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errno = EINVAL;
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}
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}
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#else
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RETVAL = (SysRet) not_here("IO::Handle::setvbuf");
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#endif
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OUTPUT:
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RETVAL
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SysRet
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fsync(arg)
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SV * arg
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PREINIT:
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OutputStream handle = NULL;
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CODE:
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#ifdef HAS_FSYNC
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handle = IoOFP(sv_2io(arg));
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if (!handle)
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handle = IoIFP(sv_2io(arg));
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if (handle) {
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int fd = PerlIO_fileno(handle);
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if (fd >= 0) {
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RETVAL = fsync(fd);
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} else {
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RETVAL = -1;
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errno = EBADF;
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}
|
|
} else {
|
|
RETVAL = -1;
|
|
errno = EINVAL;
|
|
}
|
|
#else
|
|
RETVAL = (SysRet) not_here("IO::Handle::sync");
|
|
#endif
|
|
OUTPUT:
|
|
RETVAL
|
|
|
|
SV *
|
|
_create_getline_subs(const char *code)
|
|
CODE:
|
|
OP *(*io_old_ck_lineseq)(pTHX_ OP *) = PL_check[OP_LINESEQ];
|
|
PL_check[OP_LINESEQ] = io_ck_lineseq;
|
|
RETVAL = SvREFCNT_inc(eval_pv(code,FALSE));
|
|
PL_check[OP_LINESEQ] = io_old_ck_lineseq;
|
|
OUTPUT:
|
|
RETVAL
|
|
|
|
|
|
MODULE = IO PACKAGE = IO::Socket
|
|
|
|
SysRet
|
|
sockatmark (sock)
|
|
InputStream sock
|
|
PROTOTYPE: $
|
|
PREINIT:
|
|
int fd;
|
|
CODE:
|
|
fd = PerlIO_fileno(sock);
|
|
if (fd < 0) {
|
|
errno = EBADF;
|
|
RETVAL = -1;
|
|
}
|
|
#ifdef HAS_SOCKATMARK
|
|
else {
|
|
RETVAL = sockatmark(fd);
|
|
}
|
|
#else
|
|
else {
|
|
int flag = 0;
|
|
# ifdef SIOCATMARK
|
|
# if defined(NETWARE) || defined(WIN32)
|
|
if (ioctl(fd, SIOCATMARK, (char*)&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
|
|
}
|
|
|