summaryrefslogtreecommitdiff
path: root/run.c
blob: a2059e2e5bb8ac17a9b6acb6df2949d9aefcf7d3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
/*    run.c
 *
 *    Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
 *    2000, 2001, 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
 */

int
Perl_runops_standard(pTHX)
{
    while ((PL_op = CALL_FPTR(PL_op->op_ppaddr)(aTHX))) {
	PERL_ASYNC_CHECK();
    }

    TAINT_NOT;
    return 0;
}