Exclude reentrant_buffer from .def file

[perl5.git] / run.c

diff --git a/run.c b/run.c
index 371717a..533beac 100644 (file)
--- a/run.c
+++ b/run.c
@@ -1,67 +1,167 @@
+/*    run.c
+ *
+ *    Copyright (c) 1991-2001, Larry Wall
+ *
+ *    You may distribute under the terms of either the GNU General Public
+ *    License or the Artistic License, as specified in the README file.
+ *
+ */
+
 #include "EXTERN.h"
+#define PERL_IN_RUN_C
 #include "perl.h"
 
-char **watchaddr = 0;
-char *watchok;
+/*
+ * "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
+ */
 
-#ifndef DEBUGGING
+int
+Perl_runops_standard(pTHX)
+{
+    while ((PL_op = CALL_FPTR(PL_op->op_ppaddr)(aTHX))) {
+       PERL_ASYNC_CHECK();
+    }
 
-run() {
-    while ( op = (*op->op_ppaddr)() ) ;
+    TAINT_NOT;
+    return 0;
 }
 
-#else
-
-run() {
-    if (!op) {
-       warn("NULL OP IN RUN");
-       return;
+int
+Perl_runops_debug(pTHX)
+{
+#ifdef DEBUGGING
+    if (!PL_op) {
+       if (ckWARN_d(WARN_DEBUGGING))
+           Perl_warner(aTHX_ WARN_DEBUGGING, "NULL OP IN RUN");
+       return 0;
     }
+
     do {
-       if (debug) {
-           if (watchaddr != 0 && *watchaddr != watchok)
-               fprintf(stderr, "WARNING: %lx changed from %lx to %lx\n",
-                   watchaddr, watchok, *watchaddr);
+       PERL_ASYNC_CHECK();
+       if (PL_debug) {
+           if (PL_watchaddr != 0 && *PL_watchaddr != PL_watchok)
+               PerlIO_printf(Perl_debug_log,
+                             "WARNING: %"UVxf" changed from %"UVxf" to %"UVxf"\n",
+                             PTR2UV(PL_watchaddr), PTR2UV(PL_watchok),
+                             PTR2UV(*PL_watchaddr));
            DEBUG_s(debstack());
-           DEBUG_t(debop(op));
+           DEBUG_t(debop(PL_op));
+           DEBUG_P(debprof(PL_op));
        }
-    } while ( op = (*op->op_ppaddr)() );
-}
+    } while ((PL_op = CALL_FPTR(PL_op->op_ppaddr)(aTHX)));
 
-#endif
+    TAINT_NOT;
+    return 0;
+#else
+    return runops_standard();
+#endif /* DEBUGGING */
+}
 
 I32
-debop(op)
-OP *op;
+Perl_debop(pTHX_ OP *o)
 {
+#ifdef DEBUGGING
+    AV *padlist, *comppad;
+    CV *cv;
     SV *sv;
-    deb("%s", op_name[op->op_type]);
-    switch (op->op_type) {
+    STRLEN n_a;
+    Perl_deb(aTHX_ "%s", PL_op_name[o->op_type]);
+    switch (o->op_type) {
     case OP_CONST:
-       fprintf(stderr, "(%s)", SvPEEK(cSVOP->op_sv));
+       PerlIO_printf(Perl_debug_log, "(%s)", SvPEEK(cSVOPo_sv));
        break;
     case OP_GVSV:
     case OP_GV:
-       if (cGVOP->op_gv) {
+       if (cGVOPo_gv) {
            sv = NEWSV(0,0);
-           gv_fullname(sv, cGVOP->op_gv);
-           fprintf(stderr, "(%s)", SvPV(sv, na));
+           gv_fullname3(sv, cGVOPo_gv, Nullch);
+           PerlIO_printf(Perl_debug_log, "(%s)", SvPV(sv, n_a));
            SvREFCNT_dec(sv);
        }
        else
-           fprintf(stderr, "(NULL)");
+           PerlIO_printf(Perl_debug_log, "(NULL)");
+       break;
+    case OP_PADSV:
+    case OP_PADAV:
+    case OP_PADHV:
+       /* print the lexical's name */
+        cv = deb_curcv(cxstack_ix);
+        if (cv) {
+            padlist = CvPADLIST(cv);
+            comppad = (AV*)(*av_fetch(padlist, 0, FALSE));
+            sv = *av_fetch(comppad, o->op_targ, FALSE);
+        } else
+            sv = Nullsv;
+        if (sv)
+           PerlIO_printf(Perl_debug_log, "(%s)", SvPV_nolen(sv));
+        else
+           PerlIO_printf(Perl_debug_log, "[%"UVuf"]", (UV)o->op_targ);
+        break;
+    default:
        break;
     }
-    fprintf(stderr, "\n");
+    PerlIO_printf(Perl_debug_log, "\n");
+#endif /* DEBUGGING */
     return 0;
 }
 
+#ifdef DEBUGGING
+
+STATIC CV*
+S_deb_curcv(pTHX_ I32 ix)
+{
+    PERL_CONTEXT *cx = &cxstack[ix];
+    if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT)
+        return cx->blk_sub.cv;
+    else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx))
+        return PL_compcv;
+    else if (ix == 0 && PL_curstackinfo->si_type == PERLSI_MAIN)
+        return PL_main_cv;
+    else if (ix <= 0)
+        return Nullcv;
+    else
+        return deb_curcv(ix - 1);
+}
+
+#endif  /* DEBUGGING */
+
 void
-watch(addr)
-char **addr;
+Perl_watch(pTHX_ char **addr)
+{
+#ifdef DEBUGGING
+    PL_watchaddr = addr;
+    PL_watchok = *addr;
+    PerlIO_printf(Perl_debug_log, "WATCHING, %"UVxf" is currently %"UVxf"\n",
+       PTR2UV(PL_watchaddr), PTR2UV(PL_watchok));
+#endif /* DEBUGGING */
+}
+
+#ifdef DEBUGGING
+
+STATIC void
+S_debprof(pTHX_ OP *o)
 {
-    watchaddr = addr;
-    watchok = *addr;
-    fprintf(stderr, "WATCHING, %lx is currently %lx\n",
-       watchaddr, watchok);
+    if (!PL_profiledata)
+       Newz(000, PL_profiledata, MAXO, U32);
+    ++PL_profiledata[o->op_type];
+}
+
+#endif /* DEBUGGING */
+
+void
+Perl_debprofdump(pTHX)
+{
+#ifdef DEBUGGING
+    unsigned i;
+    if (!PL_profiledata)
+       return;
+    for (i = 0; i < MAXO; i++) {
+       if (PL_profiledata[i])
+           PerlIO_printf(Perl_debug_log,
+                         "%5lu %s\n", (unsigned long)PL_profiledata[i],
+                                       PL_op_name[i]);
+    }
+#endif /* DEBUGGING */
 }