perl/run.c

53 lines
1.4 KiB
C

/* run.c
*
* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
* 2000, 2001, 2004, 2005, 2006, by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
*/
/* This file contains the main Perl opcode execution loop. It just
* calls the pp_foo() function associated with each op, and expects that
* function to return a pointer to the next op to be executed, or null if
* it's the end of the sub or program or whatever.
*
* There is a similar loop in dump.c, Perl_runops_debug(), which does
* the same, but also checks for various debug flags each time round the
* loop.
*
* Why this function requires a file all of its own is anybody's guess.
* DAPM.
*/
#include "EXTERN.h"
#define PERL_IN_RUN_C
#include "perl.h"
/*
* 'Away now, Shadowfax! Run, greatheart, run as you have never run before!
* Now we are come to the lands where you were foaled, and every stone you
* know. Run now! Hope is in speed!' --Gandalf
*
* [p.600 of _The Lord of the Rings_, III/xi: "The Palantír"]
*/
int
Perl_runops_standard(pTHX)
{
OP *op = PL_op;
PERL_DTRACE_PROBE_OP(op);
while ((PL_op = op = op->op_ppaddr(aTHX))) {
PERL_DTRACE_PROBE_OP(op);
}
PERL_ASYNC_CHECK();
TAINT_NOT;
return 0;
}
/*
* ex: set ts=8 sts=4 sw=4 et:
*/