#include "EXTERN.h"
#include "perl.h"
+#ifdef I_UNISTD
+#include <unistd.h>
+#endif
+
/* Hot code. */
+#ifdef USE_THREADS
+static void
+unset_cvowner(void *cvarg)
+{
+ register CV* cv = (CV *) cvarg;
+#ifdef DEBUGGING
+ dTHR;
+#endif /* DEBUGGING */
+
+ DEBUG_L((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n",
+ thr, cv, SvPEEK((SV*)cv))));
+ MUTEX_LOCK(CvMUTEXP(cv));
+ DEBUG_L(if (CvDEPTH(cv) != 0)
+ PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n",
+ CvDEPTH(cv)););
+ assert(thr == CvOWNER(cv));
+ CvOWNER(cv) = 0;
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ SvREFCNT_dec(cv);
+}
+#endif /* USE_THREADS */
+
PP(pp_const)
{
- dSP;
+ djSP;
XPUSHs(cSVOP->op_sv);
RETURN;
}
PP(pp_gvsv)
{
- dSP;
- EXTEND(sp,1);
+ djSP;
+ EXTEND(SP,1);
if (op->op_private & OPpLVAL_INTRO)
PUSHs(save_scalar(cGVOP->op_gv));
else
PP(pp_stringify)
{
- dSP; dTARGET;
+ djSP; dTARGET;
STRLEN len;
char *s;
s = SvPV(TOPs,len);
PP(pp_gv)
{
- dSP;
+ djSP;
XPUSHs((SV*)cGVOP->op_gv);
RETURN;
}
-PP(pp_gelem)
-{
- GV *gv;
- SV *sv;
- SV *ref;
- char *elem;
- dSP;
-
- sv = POPs;
- elem = SvPV(sv, na);
- gv = (GV*)POPs;
- ref = Nullsv;
- sv = Nullsv;
- switch (elem ? *elem : '\0')
- {
- case 'A':
- if (strEQ(elem, "ARRAY"))
- ref = (SV*)GvAV(gv);
- break;
- case 'C':
- if (strEQ(elem, "CODE"))
- ref = (SV*)GvCVu(gv);
- break;
- case 'F':
- if (strEQ(elem, "FILEHANDLE")) /* XXX deprecate in 5.005 */
- ref = (SV*)GvIOp(gv);
- break;
- case 'G':
- if (strEQ(elem, "GLOB"))
- ref = (SV*)gv;
- break;
- case 'H':
- if (strEQ(elem, "HASH"))
- ref = (SV*)GvHV(gv);
- break;
- case 'I':
- if (strEQ(elem, "IO"))
- ref = (SV*)GvIOp(gv);
- break;
- case 'N':
- if (strEQ(elem, "NAME"))
- sv = newSVpv(GvNAME(gv), GvNAMELEN(gv));
- break;
- case 'P':
- if (strEQ(elem, "PACKAGE"))
- sv = newSVpv(HvNAME(GvSTASH(gv)), 0);
- break;
- case 'S':
- if (strEQ(elem, "SCALAR"))
- ref = GvSV(gv);
- break;
- }
- if (ref)
- sv = newRV(ref);
- if (sv)
- sv_2mortal(sv);
- else
- sv = &sv_undef;
- XPUSHs(sv);
- RETURN;
-}
-
PP(pp_and)
{
- dSP;
+ djSP;
if (!SvTRUE(TOPs))
RETURN;
else {
PP(pp_sassign)
{
- dSP; dPOPTOPssrl;
+ djSP; dPOPTOPssrl;
MAGIC *mg;
if (op->op_private & OPpASSIGN_BACKWARDS) {
}
if (tainting && tainted && !SvTAINTED(left))
TAINT_NOT;
- SvSetSV(right, left);
- SvSETMAGIC(right);
+ SvSetMagicSV(right, left);
SETs(right);
RETURN;
}
PP(pp_cond_expr)
{
- dSP;
+ djSP;
if (SvTRUEx(POPs))
RETURNOP(cCONDOP->op_true);
else
PP(pp_concat)
{
- dSP; dATARGET; tryAMAGICbin(concat,opASSIGN);
+ djSP; dATARGET; tryAMAGICbin(concat,opASSIGN);
{
dPOPTOPssrl;
STRLEN len;
PP(pp_padsv)
{
- dSP; dTARGET;
+ djSP; dTARGET;
XPUSHs(TARG);
if (op->op_flags & OPf_MOD) {
if (op->op_private & OPpLVAL_INTRO)
SAVECLEARSV(curpad[op->op_targ]);
- else if (op->op_private & OPpDEREF)
- vivify_ref(curpad[op->op_targ], op->op_flags & OPpDEREF);
+ else if (op->op_private & OPpDEREF) {
+ PUTBACK;
+ vivify_ref(curpad[op->op_targ], op->op_private & OPpDEREF);
+ SPAGAIN;
+ }
}
RETURN;
}
PP(pp_eq)
{
- dSP; tryAMAGICbinSET(eq,0);
+ djSP; tryAMAGICbinSET(eq,0);
{
dPOPnv;
- SETs((TOPn == value) ? &sv_yes : &sv_no);
+ SETs(boolSV(TOPn == value));
RETURN;
}
}
PP(pp_preinc)
{
- dSP;
+ djSP;
if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
croak(no_modify);
if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
PP(pp_or)
{
- dSP;
+ djSP;
if (SvTRUE(TOPs))
RETURN;
else {
PP(pp_add)
{
- dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
+ djSP; dATARGET; tryAMAGICbin(add,opASSIGN);
{
dPOPTOPnnrl_ul;
SETn( left + right );
PP(pp_aelemfast)
{
- dSP;
+ djSP;
AV *av = GvAV((GV*)cSVOP->op_sv);
SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD);
PUSHs(svp ? *svp : &sv_undef);
PP(pp_join)
{
- dSP; dMARK; dTARGET;
+ djSP; dMARK; dTARGET;
MARK++;
do_join(TARG, *MARK, MARK, SP);
SP = MARK;
PP(pp_pushre)
{
- dSP;
+ djSP;
#ifdef DEBUGGING
/*
* We ass_u_me that LvTARGOFF() comes first, and that two STRLENs
PP(pp_print)
{
- dSP; dMARK; dORIGMARK;
+ djSP; dMARK; dORIGMARK;
GV *gv;
IO *io;
register PerlIO *fp;
gv = (GV*)*++MARK;
else
gv = defoutgv;
- if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
+ if (SvRMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) {
if (MARK == ORIGMARK) {
- EXTEND(SP, 1);
+ /* If using default handle then we need to make space to
+ * pass object as 1st arg, so move other args up ...
+ */
+ MEXTEND(SP, 1);
++MARK;
Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
++SP;
PP(pp_rv2av)
{
- dSP; dPOPss;
+ djSP; dPOPss;
AV *av;
if (SvROK(sv)) {
av = (AV*)SvRV(sv);
if (SvTYPE(av) != SVt_PVAV)
DIE("Not an ARRAY reference");
- if (op->op_private & OPpLVAL_INTRO)
- av = (AV*)save_svref((SV**)sv);
if (op->op_flags & OPf_REF) {
PUSHs((SV*)av);
RETURN;
if (GIMME == G_ARRAY) {
I32 maxarg = AvFILL(av) + 1;
- EXTEND(SP, maxarg);
- Copy(AvARRAY(av), SP+1, maxarg, SV*);
+ EXTEND(SP, maxarg);
+ if (SvRMAGICAL(av)) {
+ U32 i;
+ for (i=0; i < maxarg; i++) {
+ SV **svp = av_fetch(av, i, FALSE);
+ SP[i+1] = (svp) ? *svp : &sv_undef;
+ }
+ }
+ else {
+ Copy(AvARRAY(av), SP+1, maxarg, SV*);
+ }
SP += maxarg;
}
else {
PP(pp_rv2hv)
{
- dSP; dTOPss;
+ djSP; dTOPss;
HV *hv;
if (SvROK(sv)) {
wasref:
hv = (HV*)SvRV(sv);
- if (SvTYPE(hv) != SVt_PVHV)
+ if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV)
DIE("Not a HASH reference");
- if (op->op_private & OPpLVAL_INTRO)
- hv = (HV*)save_svref((SV**)sv);
if (op->op_flags & OPf_REF) {
SETs((SV*)hv);
RETURN;
}
}
else {
- if (SvTYPE(sv) == SVt_PVHV) {
+ if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) {
hv = (HV*)sv;
if (op->op_flags & OPf_REF) {
SETs((SV*)hv);
}
else {
dTARGET;
- if (HvFILL(hv)) {
- sprintf(buf, "%ld/%ld", (long)HvFILL(hv), (long)HvMAX(hv)+1);
- sv_setpv(TARG, buf);
- }
+ /* This bit is OK even when hv is really an AV */
+ if (HvFILL(hv))
+ sv_setpvf(TARG, "%ld/%ld",
+ (long)HvFILL(hv), (long)HvMAX(hv) + 1);
else
sv_setiv(TARG, 0);
+
SETTARG;
RETURN;
}
PP(pp_aassign)
{
- dSP;
+ djSP;
SV **lastlelem = stack_sp;
SV **lastrelem = stack_base + POPMARK;
SV **firstrelem = stack_base + POPMARK + 1;
register SV *sv;
register AV *ary;
+ I32 gimme;
HV *hash;
I32 i;
int magic;
if (op->op_private & OPpASSIGN_COMMON) {
for (relem = firstrelem; relem <= lastrelem; relem++) {
/*SUPPRESS 560*/
- if (sv = *relem)
+ if (sv = *relem) {
+ TAINT_NOT; /* Each item is independent */
*relem = sv_mortalcopy(sv);
+ }
}
}
av_extend(ary, lastrelem - relem);
i = 0;
while (relem <= lastrelem) { /* gobble up all the rest */
+ SV **didstore;
sv = NEWSV(28,0);
assert(*relem);
sv_setsv(sv,*relem);
*(relem++) = sv;
- (void)av_store(ary,i++,sv);
- if (magic)
- mg_set(sv);
+ didstore = av_store(ary,i++,sv);
+ if (magic) {
+ if (SvSMAGICAL(sv))
+ mg_set(sv);
+ if (!didstore)
+ SvREFCNT_dec(sv);
+ }
TAINT_NOT;
}
break;
while (relem < lastrelem) { /* gobble up all the rest */
STRLEN len;
+ HE *didstore;
if (*relem)
sv = *(relem++);
else
if (*relem)
sv_setsv(tmpstr,*relem); /* value */
*(relem++) = tmpstr;
- (void)hv_store_ent(hash,sv,tmpstr,0);
- if (magic)
- mg_set(tmpstr);
+ didstore = hv_store_ent(hash,sv,tmpstr,0);
+ if (magic) {
+ if (SvSMAGICAL(tmpstr))
+ mg_set(tmpstr);
+ if (!didstore)
+ SvREFCNT_dec(tmpstr);
+ }
TAINT_NOT;
}
- if (relem == lastrelem)
- warn("Odd number of elements in hash list");
+ if (relem == lastrelem && dowarn) {
+ if (relem == firstrelem &&
+ SvROK(*relem) &&
+ ( SvTYPE(SvRV(*relem)) == SVt_PVAV ||
+ SvTYPE(SvRV(*relem)) == SVt_PVHV ) )
+ warn("Reference found where even-sized list expected");
+ else
+ warn("Odd number of elements in hash assignment");
+ }
}
break;
default:
tainting |= (uid && (euid != uid || egid != gid));
}
delaymagic = 0;
- if (GIMME == G_ARRAY) {
+
+ gimme = GIMME_V;
+ if (gimme == G_VOID)
+ SP = firstrelem - 1;
+ else if (gimme == G_SCALAR) {
+ dTARGET;
+ SP = firstrelem;
+ SETi(lastrelem - firstrelem + 1);
+ }
+ else {
if (ary || hash)
SP = lastrelem;
else
lelem = firstlelem + (relem - firstrelem);
while (relem <= SP)
*relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef;
- RETURN;
- }
- else {
- dTARGET;
- SP = firstrelem;
-
- SETi(lastrelem - firstrelem + 1);
- RETURN;
}
+ RETURN;
}
PP(pp_match)
{
- dSP; dTARG;
+ djSP; dTARG;
register PMOP *pm = cPMOP;
register char *t;
register char *s;
I32 minmatch = 0;
I32 oldsave = savestack_ix;
I32 update_minmatch = 1;
+ SV *screamer;
if (op->op_flags & OPf_STACKED)
TARG = POPs;
else {
- TARG = GvSV(defgv);
+ TARG = DEFSV;
EXTEND(SP,1);
}
+ PUTBACK; /* EVAL blocks need stack_sp. */
s = SvPV(TARG, len);
strend = s + len;
if (!s)
TAINT_NOT;
if (pm->op_pmflags & PMf_USED) {
+ failure:
if (gimme == G_ARRAY)
RETURN;
RETPUSHNO;
pm = curpm;
rx = pm->op_pmregexp;
}
+ if (rx->minlen > len) goto failure;
+
+ screamer = ( (SvSCREAM(TARG) && rx->check_substr
+ && SvTYPE(rx->check_substr) == SVt_PVBM
+ && SvVALID(rx->check_substr))
+ ? TARG : Nullsv);
truebase = t = s;
if (global = pm->op_pmflags & PMf_GLOBAL) {
rx->startp[0] = 0;
}
if (!rx->nparens && !global)
gimme = G_SCALAR; /* accidental array context? */
- safebase = (((gimme == G_ARRAY) || global) && !sawampersand);
+ safebase = (((gimme == G_ARRAY) || global || !rx->nparens)
+ && !sawampersand);
+ safebase = safebase ? 0 : REXEC_COPY_STR ;
if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
SAVEINT(multiline);
multiline = pm->op_pmflags & PMf_MULTILINE;
play_it_again:
if (global && rx->startp[0]) {
t = s = rx->endp[0];
- if (s >= strend)
+ if ((s + rx->minlen) > strend)
goto nope;
if (update_minmatch++)
minmatch = (s == rx->startp[0]);
}
- if (pm->op_pmshort) {
- if (pm->op_pmflags & PMf_SCANFIRST) {
- if (SvSCREAM(TARG)) {
- if (screamfirst[BmRARE(pm->op_pmshort)] < 0)
+ if (rx->check_substr) {
+ if (!(rx->reganch & ROPT_NOSCAN)) { /* Floating checkstring. */
+ if ( screamer ) {
+ I32 p = -1;
+
+ if (screamfirst[BmRARE(rx->check_substr)] < 0)
goto nope;
- else if (!(s = screaminstr(TARG, pm->op_pmshort)))
+ else if (!(s = screaminstr(TARG, rx->check_substr,
+ rx->check_offset_min, 0, &p, 0)))
goto nope;
- else if (pm->op_pmflags & PMf_ALL)
+ else if ((rx->reganch & ROPT_CHECK_ALL)
+ && !sawampersand && !SvTAIL(rx->check_substr))
goto yup;
}
- else if (!(s = fbm_instr((unsigned char*)s,
- (unsigned char*)strend, pm->op_pmshort)))
+ else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min,
+ (unsigned char*)strend,
+ rx->check_substr)))
goto nope;
- else if (pm->op_pmflags & PMf_ALL)
+ else if ((rx->reganch & ROPT_CHECK_ALL) && !sawampersand)
goto yup;
- if (s && rx->regback >= 0) {
- ++BmUSEFUL(pm->op_pmshort);
- s -= rx->regback;
- if (s < t)
- s = t;
+ if (s && rx->check_offset_max < t - s) {
+ ++BmUSEFUL(rx->check_substr);
+ s -= rx->check_offset_max;
}
else
s = t;
}
- else if (!multiline) {
- if (*SvPVX(pm->op_pmshort) != *s
- || (pm->op_pmslen > 1
- && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen)))
+ /* Now checkstring is fixed, i.e. at fixed offset from the
+ beginning of match, and the match is anchored at s. */
+ else if (!multiline) { /* Anchored near beginning of string. */
+ I32 slen;
+ if (*SvPVX(rx->check_substr) != s[rx->check_offset_min]
+ || ((slen = SvCUR(rx->check_substr)) > 1
+ && memNE(SvPVX(rx->check_substr),
+ s + rx->check_offset_min, slen)))
goto nope;
}
- if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) {
- SvREFCNT_dec(pm->op_pmshort);
- pm->op_pmshort = Nullsv; /* opt is being useless */
+ if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0
+ && rx->check_substr == rx->float_substr) {
+ SvREFCNT_dec(rx->check_substr);
+ rx->check_substr = Nullsv; /* opt is being useless */
+ rx->float_substr = Nullsv;
}
}
- if (pregexec(rx, s, strend, truebase, minmatch,
- SvSCREAM(TARG) ? TARG : Nullsv, safebase))
+ if (regexec_flags(rx, s, strend, truebase, minmatch,
+ screamer, NULL, safebase))
{
curpm = pm;
if (pm->op_pmflags & PMf_ONCE)
/*NOTREACHED*/
gotcha:
- TAINT_IF(rx->exec_tainted);
+ TAINT_IF(RX_MATCH_TAINTED(rx));
if (gimme == G_ARRAY) {
I32 iters, i, len;
i = 1;
else
i = 0;
+ SPAGAIN; /* EVAL blocks could move the stack. */
EXTEND(SP, iters + i);
EXTEND_MORTAL(iters + i);
for (i = !i; i <= iters; i++) {
strend = rx->subend;
if (rx->startp[0] && rx->startp[0] == rx->endp[0])
++rx->endp[0];
+ PUTBACK; /* EVAL blocks may use stack */
goto play_it_again;
}
LEAVE_SCOPE(oldsave);
RETPUSHYES;
}
-yup:
- TAINT_IF(rx->exec_tainted);
- ++BmUSEFUL(pm->op_pmshort);
+yup: /* Confirmed by check_substr */
+ TAINT_IF(RX_MATCH_TAINTED(rx));
+ ++BmUSEFUL(rx->check_substr);
curpm = pm;
if (pm->op_pmflags & PMf_ONCE)
pm->op_pmflags |= PMf_USED;
rx->subbeg = truebase;
rx->subend = strend;
rx->startp[0] = s;
- rx->endp[0] = s + SvCUR(pm->op_pmshort);
+ rx->endp[0] = s + SvCUR(rx->check_substr);
goto gotcha;
}
if (sawampersand) {
rx->subbeg = tmps;
rx->subend = tmps + (strend-t);
tmps = rx->startp[0] = tmps + (s - t);
- rx->endp[0] = tmps + SvCUR(pm->op_pmshort);
+ rx->endp[0] = tmps + SvCUR(rx->check_substr);
}
LEAVE_SCOPE(oldsave);
RETPUSHYES;
nope:
- if (pm->op_pmshort)
- ++BmUSEFUL(pm->op_pmshort);
+ if (rx->check_substr)
+ ++BmUSEFUL(rx->check_substr);
ret_no:
+ if (global && !(pm->op_pmflags & PMf_CONTINUE)) {
+ if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) {
+ MAGIC* mg = mg_find(TARG, 'g');
+ if (mg)
+ mg->mg_len = -1;
+ }
+ }
LEAVE_SCOPE(oldsave);
if (gimme == G_ARRAY)
RETURN;
}
OP *
-do_readline()
+do_readline(void)
{
dSP; dTARGETSTACKED;
register SV *sv;
PerlIO *fp;
register IO *io = GvIO(last_in_gv);
register I32 type = op->op_type;
+ I32 gimme = GIMME_V;
MAGIC *mg;
- if (SvMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) {
+ if (SvRMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) {
PUSHMARK(SP);
XPUSHs(mg->mg_obj);
PUTBACK;
ENTER;
- perl_call_method("READLINE", GIMME);
+ perl_call_method("READLINE", gimme);
LEAVE;
SPAGAIN;
- if (GIMME == G_SCALAR)
- SvSetSV_nosteal(TARG, TOPs);
+ if (gimme == G_SCALAR)
+ SvSetMagicSV_nosteal(TARG, TOPs);
RETURN;
}
fp = Nullfp;
((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb
but that's unsupported, so I don't want to do it now and
have it bite someone in the future. */
- strcat(tmpfnam,tmpnam(NULL));
+ strcat(tmpfnam,PerlLIO_tmpnam(NULL));
cp = SvPV(tmpglob,i);
for (; i; i--) {
if (cp[i] == ';') hasver = 1;
}
}
if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) {
- ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL);
+ Stat_t st;
+ if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode))
+ ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL);
+ else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL);
if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer);
while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt,
&dfltdsc,NULL,NULL,NULL))&1)) {
sv_catsv(tmpcmd, tmpglob);
sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |");
#else
+#ifdef DJGPP
+ sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */
+ sv_catsv(tmpcmd, tmpglob);
+#else
sv_setpv(tmpcmd, "perlglob ");
sv_catsv(tmpcmd, tmpglob);
sv_catpv(tmpcmd, " |");
+#endif /* !DJGPP */
#endif /* !OS2 */
#else /* !DOSISH */
#if defined(CSH)
if (!fp) {
if (dowarn && io && !(IoFLAGS(io) & IOf_START))
warn("Read on closed filehandle <%s>", GvENAME(last_in_gv));
- if (GIMME == G_SCALAR) {
+ if (gimme == G_SCALAR) {
(void)SvOK_off(TARG);
PUSHTARG;
}
RETURN;
}
- if (GIMME == G_ARRAY) {
- sv = sv_2mortal(NEWSV(57, 80));
- offset = 0;
- }
- else {
+ if (gimme == G_SCALAR) {
sv = TARG;
if (SvROK(sv))
sv_unref(sv);
else
offset = 0;
}
+ else {
+ sv = sv_2mortal(NEWSV(57, 80));
+ offset = 0;
+ }
for (;;) {
if (!sv_gets(sv, fp, offset)) {
PerlIO_clearerr(fp);
IoFLAGS(io) |= IOf_START;
}
else if (type == OP_GLOB) {
- (void)do_close(last_in_gv, FALSE);
+ if (do_close(last_in_gv, FALSE) & ~0xFF)
+ warn("internal error: glob failed");
}
- if (GIMME == G_SCALAR) {
+ if (gimme == G_SCALAR) {
(void)SvOK_off(TARG);
PUSHTARG;
}
if (!isALPHA(*tmps) && !isDIGIT(*tmps) &&
strchr("$&*(){}[]'\";\\|?<>~`", *tmps))
break;
- if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) {
+ if (*tmps && PerlLIO_stat(SvPVX(sv), &statbuf) < 0) {
(void)POPs; /* Unmatched wildcard? Chuck it... */
continue;
}
}
- if (GIMME == G_ARRAY) {
+ if (gimme == G_ARRAY) {
if (SvLEN(sv) - SvCUR(sv) > 20) {
SvLEN_set(sv, SvCUR(sv)+1);
Renew(SvPVX(sv), SvLEN(sv), char);
sv = sv_2mortal(NEWSV(58, 80));
continue;
}
- else if (!tmplen && SvLEN(sv) - SvCUR(sv) > 80) {
+ else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) {
/* try to reclaim a bit of scalar space (only on 1st alloc) */
if (SvCUR(sv) < 60)
SvLEN_set(sv, 80);
PP(pp_enter)
{
- dSP;
- register CONTEXT *cx;
- I32 gimme;
+ djSP;
+ register PERL_CONTEXT *cx;
+ I32 gimme = OP_GIMME(op, -1);
- /*
- * We don't just use the GIMME macro here because it assumes there's
- * already a context, which ain't necessarily so at initial startup.
- */
-
- if (op->op_flags & OPf_KNOW)
- gimme = op->op_flags & OPf_LIST;
- else if (cxstack_ix >= 0)
- gimme = cxstack[cxstack_ix].blk_gimme;
- else
- gimme = G_SCALAR;
+ if (gimme == -1) {
+ if (cxstack_ix >= 0)
+ gimme = cxstack[cxstack_ix].blk_gimme;
+ else
+ gimme = G_SCALAR;
+ }
ENTER;
SAVETMPS;
- PUSHBLOCK(cx, CXt_BLOCK, sp);
+ PUSHBLOCK(cx, CXt_BLOCK, SP);
RETURN;
}
PP(pp_helem)
{
- dSP;
+ djSP;
HE* he;
+ SV **svp;
SV *keysv = POPs;
HV *hv = (HV*)POPs;
U32 lval = op->op_flags & OPf_MOD;
U32 defer = op->op_private & OPpLVAL_DEFER;
- if (SvTYPE(hv) != SVt_PVHV)
+ if (SvTYPE(hv) == SVt_PVHV) {
+ he = hv_fetch_ent(hv, keysv, lval && !defer, 0);
+ svp = he ? &HeVAL(he) : 0;
+ }
+ else if (SvTYPE(hv) == SVt_PVAV) {
+ svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0);
+ }
+ else {
RETPUSHUNDEF;
- he = hv_fetch_ent(hv, keysv, lval && !defer, 0);
+ }
if (lval) {
- if (!he || HeVAL(he) == &sv_undef) {
+ if (!svp || *svp == &sv_undef) {
SV* lv;
SV* key2;
if (!defer)
RETURN;
}
if (op->op_private & OPpLVAL_INTRO) {
- if (HvNAME(hv) && isGV(HeVAL(he)))
- save_gp((GV*)HeVAL(he), !(op->op_flags & OPf_SPECIAL));
+ if (HvNAME(hv) && isGV(*svp))
+ save_gp((GV*)*svp, !(op->op_flags & OPf_SPECIAL));
else
- save_svref(&HeVAL(he));
+ save_helem(hv, keysv, svp);
}
else if (op->op_private & OPpDEREF)
- vivify_ref(HeVAL(he), op->op_private & OPpDEREF);
+ vivify_ref(*svp, op->op_private & OPpDEREF);
}
- PUSHs(he ? HeVAL(he) : &sv_undef);
+ PUSHs(svp ? *svp : &sv_undef);
RETURN;
}
PP(pp_leave)
{
- dSP;
- register CONTEXT *cx;
+ djSP;
+ register PERL_CONTEXT *cx;
register SV **mark;
SV **newsp;
PMOP *newpm;
POPBLOCK(cx,newpm);
- if (op->op_flags & OPf_KNOW)
- gimme = op->op_flags & OPf_LIST;
- else if (cxstack_ix >= 0)
- gimme = cxstack[cxstack_ix].blk_gimme;
- else
- gimme = G_SCALAR;
+ gimme = OP_GIMME(op, -1);
+ if (gimme == -1) {
+ if (cxstack_ix >= 0)
+ gimme = cxstack[cxstack_ix].blk_gimme;
+ else
+ gimme = G_SCALAR;
+ }
- if (gimme == G_SCALAR) {
- if (op->op_private & OPpLEAVE_VOID)
- SP = newsp;
+ TAINT_NOT;
+ if (gimme == G_VOID)
+ SP = newsp;
+ else if (gimme == G_SCALAR) {
+ MARK = newsp + 1;
+ if (MARK <= SP)
+ if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))
+ *MARK = TOPs;
+ else
+ *MARK = sv_mortalcopy(TOPs);
else {
- MARK = newsp + 1;
- if (MARK <= SP)
- if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))
- *MARK = TOPs;
- else
- *MARK = sv_mortalcopy(TOPs);
- else {
- MEXTEND(mark,0);
- *MARK = &sv_undef;
- }
- SP = MARK;
+ MEXTEND(mark,0);
+ *MARK = &sv_undef;
}
+ SP = MARK;
}
- else {
- for (mark = newsp + 1; mark <= SP; mark++)
- if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP)))
+ else if (gimme == G_ARRAY) {
+ /* in case LEAVE wipes old return values */
+ for (mark = newsp + 1; mark <= SP; mark++) {
+ if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) {
*mark = sv_mortalcopy(*mark);
- /* in case LEAVE wipes old return values */
+ TAINT_NOT; /* Each item is independent */
+ }
+ }
}
curpm = newpm; /* Don't pop $1 et al till now */
PP(pp_iter)
{
- dSP;
- register CONTEXT *cx;
+ djSP;
+ register PERL_CONTEXT *cx;
SV* sv;
AV* av;
- EXTEND(sp, 1);
+ EXTEND(SP, 1);
cx = &cxstack[cxstack_ix];
if (cx->cx_type != CXt_LOOP)
DIE("panic: pp_iter");
SvREFCNT_dec(*cx->blk_loop.itervar);
- if (sv = AvARRAY(av)[++cx->blk_loop.iterix])
+ if (sv = (SvMAGICAL(av))
+ ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE)
+ : AvARRAY(av)[++cx->blk_loop.iterix])
SvTEMP_off(sv);
else
sv = &sv_undef;
}
LvTARG(lv) = SvREFCNT_inc(av);
LvTARGOFF(lv) = cx->blk_loop.iterix;
- LvTARGLEN(lv) = -1;
+ LvTARGLEN(lv) = (UV) -1;
sv = (SV*)lv;
}
PP(pp_subst)
{
- dSP; dTARG;
+ djSP; dTARG;
register PMOP *pm = cPMOP;
PMOP *rpm = pm;
register SV *dstr;
STRLEN len;
int force_on_match = 0;
I32 oldsave = savestack_ix;
+ I32 update_minmatch = 1;
+ SV *screamer;
- if (pm->op_pmflags & PMf_CONST) /* known replacement string? */
- dstr = POPs;
+ /* known replacement string? */
+ dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv;
if (op->op_flags & OPf_STACKED)
TARG = POPs;
else {
- TARG = GvSV(defgv);
+ TARG = DEFSV;
EXTEND(SP,1);
- }
+ }
if (SvREADONLY(TARG)
|| (SvTYPE(TARG) > SVt_PVLV
&& !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG))))
croak(no_modify);
+ PUTBACK;
+
s = SvPV(TARG, len);
if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV)
force_on_match = 1;
pm = curpm;
rx = pm->op_pmregexp;
}
- safebase = (!rx->nparens && !sawampersand);
+ screamer = ( (SvSCREAM(TARG) && rx->check_substr
+ && SvTYPE(rx->check_substr) == SVt_PVBM
+ && SvVALID(rx->check_substr))
+ ? TARG : Nullsv);
+ safebase = (!rx->nparens && !sawampersand) ? 0 : REXEC_COPY_STR;
if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
SAVEINT(multiline);
multiline = pm->op_pmflags & PMf_MULTILINE;
}
orig = m = s;
- if (pm->op_pmshort) {
- if (pm->op_pmflags & PMf_SCANFIRST) {
- if (SvSCREAM(TARG)) {
- if (screamfirst[BmRARE(pm->op_pmshort)] < 0)
+ if (rx->check_substr) {
+ if (!(rx->reganch & ROPT_NOSCAN)) { /* It floats. */
+ if (screamer) {
+ I32 p = -1;
+
+ if (screamfirst[BmRARE(rx->check_substr)] < 0)
goto nope;
- else if (!(s = screaminstr(TARG, pm->op_pmshort)))
+ else if (!(s = screaminstr(TARG, rx->check_substr, rx->check_offset_min, 0, &p, 0)))
goto nope;
}
- else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend,
- pm->op_pmshort)))
+ else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min,
+ (unsigned char*)strend,
+ rx->check_substr)))
goto nope;
- if (s && rx->regback >= 0) {
- ++BmUSEFUL(pm->op_pmshort);
- s -= rx->regback;
- if (s < m)
- s = m;
+ if (s && rx->check_offset_max < s - m) {
+ ++BmUSEFUL(rx->check_substr);
+ s -= rx->check_offset_max;
}
else
s = m;
}
- else if (!multiline) {
- if (*SvPVX(pm->op_pmshort) != *s
- || (pm->op_pmslen > 1
- && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen)))
+ /* Now checkstring is fixed, i.e. at fixed offset from the
+ beginning of match, and the match is anchored at s. */
+ else if (!multiline) { /* Anchored at beginning of string. */
+ I32 slen;
+ if (*SvPVX(rx->check_substr) != s[rx->check_offset_min]
+ || ((slen = SvCUR(rx->check_substr)) > 1
+ && memNE(SvPVX(rx->check_substr),
+ s + rx->check_offset_min, slen)))
goto nope;
}
- if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) {
- SvREFCNT_dec(pm->op_pmshort);
- pm->op_pmshort = Nullsv; /* opt is being useless */
+ if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0
+ && rx->check_substr == rx->float_substr) {
+ SvREFCNT_dec(rx->check_substr);
+ rx->check_substr = Nullsv; /* opt is being useless */
+ rx->float_substr = Nullsv;
}
}
once = !(rpm->op_pmflags & PMf_GLOBAL);
/* known replacement string? */
- c = (rpm->op_pmflags & PMf_CONST) ? SvPV(dstr, clen) : Nullch;
+ c = dstr ? SvPV(dstr, clen) : Nullch;
/* can do inplace substitution? */
- if (c && clen <= rx->minlen) {
- if (! pregexec(rx, s, strend, orig, 0,
- SvSCREAM(TARG) ? TARG : Nullsv, safebase)) {
+ if (c && clen <= rx->minlen && (once || !(safebase & REXEC_COPY_STR))
+ && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) {
+ if (!regexec_flags(rx, s, strend, orig, 0, screamer, NULL, safebase)) {
+ SPAGAIN;
PUSHs(&sv_no);
LEAVE_SCOPE(oldsave);
RETURN;
s = SvPV_force(TARG, len);
goto force_it;
}
- if (rx->subbase) /* oops, no we can't */
- goto long_way;
d = s;
curpm = pm;
SvSCREAM_off(TARG); /* disable possible screamer */
if (once) {
- rxtainted = rx->exec_tainted;
- m = rx->startp[0];
- d = rx->endp[0];
+ rxtainted = RX_MATCH_TAINTED(rx);
+ if (rx->subbase) {
+ m = orig + (rx->startp[0] - rx->subbase);
+ d = orig + (rx->endp[0] - rx->subbase);
+ } else {
+ m = rx->startp[0];
+ d = rx->endp[0];
+ }
s = orig;
if (m - s > strend - d) { /* faster to shorten from end */
if (clen) {
sv_chop(TARG, d);
}
TAINT_IF(rxtainted);
+ SPAGAIN;
PUSHs(&sv_yes);
}
else {
do {
if (iters++ > maxiters)
DIE("Substitution loop");
- rxtainted |= rx->exec_tainted;
+ rxtainted |= RX_MATCH_TAINTED(rx);
m = rx->startp[0];
/*SUPPRESS 560*/
if (i = m - s) {
d += clen;
}
s = rx->endp[0];
- } while (pregexec(rx, s, strend, orig, s == m,
- Nullsv, TRUE)); /* don't match same null twice */
+ } while (regexec_flags(rx, s, strend, orig, s == m,
+ Nullsv, NULL, 0)); /* don't match same null twice */
if (s != d) {
i = strend - s;
SvCUR_set(TARG, d - SvPVX(TARG) + i);
Move(s, d, i+1, char); /* include the NUL */
}
TAINT_IF(rxtainted);
+ SPAGAIN;
PUSHs(sv_2mortal(newSViv((I32)iters)));
}
(void)SvPOK_only(TARG);
- SvSETMAGIC(TARG);
+ if (SvSMAGICAL(TARG)) {
+ PUTBACK;
+ mg_set(TARG);
+ SPAGAIN;
+ }
SvTAINT(TARG);
LEAVE_SCOPE(oldsave);
RETURN;
}
- if (pregexec(rx, s, strend, orig, 0,
- SvSCREAM(TARG) ? TARG : Nullsv, safebase)) {
- long_way:
+ if (regexec_flags(rx, s, strend, orig, 0, screamer, NULL, safebase)) {
if (force_on_match) {
force_on_match = 0;
s = SvPV_force(TARG, len);
goto force_it;
}
- rxtainted = rx->exec_tainted;
- dstr = NEWSV(25, sv_len(TARG));
+ rxtainted = RX_MATCH_TAINTED(rx);
+ dstr = NEWSV(25, len);
sv_setpvn(dstr, m, s-m);
curpm = pm;
if (!c) {
- register CONTEXT *cx;
+ register PERL_CONTEXT *cx;
+ SPAGAIN;
PUSHSUBST(cx);
RETURNOP(cPMOP->op_pmreplroot);
}
do {
if (iters++ > maxiters)
DIE("Substitution loop");
- rxtainted |= rx->exec_tainted;
+ rxtainted |= RX_MATCH_TAINTED(rx);
if (rx->subbase && rx->subbase != orig) {
m = s;
s = orig;
sv_catpvn(dstr, c, clen);
if (once)
break;
- } while (pregexec(rx, s, strend, orig, s == m, Nullsv, safebase));
+ } while (regexec_flags(rx, s, strend, orig, s == m, Nullsv, NULL, safebase));
sv_catpvn(dstr, s, strend - s);
TAINT_IF(rxtainted);
(void)SvPOK_only(TARG);
SvSETMAGIC(TARG);
SvTAINT(TARG);
+ SPAGAIN;
PUSHs(sv_2mortal(newSViv((I32)iters)));
LEAVE_SCOPE(oldsave);
RETURN;
}
-
- PUSHs(&sv_no);
- LEAVE_SCOPE(oldsave);
- RETURN;
+ goto ret_no;
nope:
- ++BmUSEFUL(pm->op_pmshort);
+ ++BmUSEFUL(rx->check_substr);
+
+ret_no:
+ SPAGAIN;
PUSHs(&sv_no);
LEAVE_SCOPE(oldsave);
RETURN;
PP(pp_grepwhile)
{
- dSP;
+ djSP;
if (SvTRUEx(POPs))
stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr];
LEAVE; /* exit inner scope */
/* All done yet? */
- if (stack_base + *markstack_ptr > sp) {
+ if (stack_base + *markstack_ptr > SP) {
I32 items;
+ I32 gimme = GIMME_V;
LEAVE; /* exit outer scope */
(void)POPMARK; /* pop src */
items = --*markstack_ptr - markstack_ptr[-1];
(void)POPMARK; /* pop dst */
SP = stack_base + POPMARK; /* pop original mark */
- if (GIMME != G_ARRAY) {
+ if (gimme == G_SCALAR) {
dTARGET;
XPUSHi(items);
- RETURN;
}
- SP += items;
+ else if (gimme == G_ARRAY)
+ SP += items;
RETURN;
}
else {
src = stack_base[*markstack_ptr];
SvTEMP_off(src);
- GvSV(defgv) = src;
+ DEFSV = src;
RETURNOP(cLOGOP->op_other);
}
PP(pp_leavesub)
{
- dSP;
+ djSP;
SV **mark;
SV **newsp;
PMOP *newpm;
I32 gimme;
- register CONTEXT *cx;
+ register PERL_CONTEXT *cx;
struct block_sub cxsub;
POPBLOCK(cx,newpm);
POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */
+ TAINT_NOT;
if (gimme == G_SCALAR) {
MARK = newsp + 1;
if (MARK <= SP)
}
SP = MARK;
}
- else {
+ else if (gimme == G_ARRAY) {
for (MARK = newsp + 1; MARK <= SP; MARK++) {
- if (!SvTEMP(*MARK))
+ if (!SvTEMP(*MARK)) {
*MARK = sv_mortalcopy(*MARK);
+ TAINT_NOT; /* Each item is independent */
+ }
}
}
PUTBACK;
return pop_return();
}
+static CV *
+get_db_sub(SV **svp, CV *cv)
+{
+ dTHR;
+ SV *oldsv = *svp;
+ GV *gv;
+
+ *svp = GvSV(DBsub);
+ save_item(*svp);
+ gv = CvGV(cv);
+ if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED))
+ || strEQ(GvNAME(gv), "END")
+ || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */
+ !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv)
+ && (gv = (GV*)oldsv) ))) {
+ /* Use GV from the stack as a fallback. */
+ /* GV is potentially non-unique, or contain different CV. */
+ sv_setsv(*svp, newRV((SV*)cv));
+ }
+ else {
+ gv_efullname3(*svp, gv, Nullch);
+ }
+ cv = GvCV(DBsub);
+ if (CvXSUB(cv))
+ curcopdb = curcop;
+ return cv;
+}
+
PP(pp_entersub)
{
- dSP; dPOPss;
+ djSP; dPOPss;
GV *gv;
HV *stash;
register CV *cv;
- register CONTEXT *cx;
+ register PERL_CONTEXT *cx;
I32 gimme;
bool hasargs = (op->op_flags & OPf_STACKED) != 0;
if (!SvROK(sv)) {
char *sym;
- if (sv == &sv_yes) /* unfound import, ignore */
+ if (sv == &sv_yes) { /* unfound import, ignore */
+ if (hasargs)
+ SP = stack_base + POPMARK;
RETURN;
+ }
if (SvGMAGICAL(sv)) {
mg_get(sv);
sym = SvPOKp(sv) ? SvPVX(sv) : Nullch;
if (!CvROOT(cv) && !CvXSUB(cv)) {
GV* autogv;
- SV* subname;
+ SV* sub_name;
/* anonymous or undef'd function leaves us no recourse */
if (CvANON(cv) || !(gv = CvGV(cv)))
goto retry;
}
/* should call AUTOLOAD now? */
- if ((autogv = gv_autoload(GvESTASH(gv), GvNAME(gv), GvNAMELEN(gv)))) {
+ if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv),
+ FALSE)))
+ {
cv = GvCV(autogv);
goto retry;
}
/* sorry */
- subname = sv_newmortal();
- gv_efullname3(subname, gv, Nullch);
- DIE("Undefined subroutine &%s called", SvPVX(subname));
- }
-
- gimme = GIMME;
- if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) {
- SV *oldsv = sv;
- sv = GvSV(DBsub);
- save_item(sv);
- gv = CvGV(cv);
- if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED))
- || strEQ(GvNAME(gv), "END")
- || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */
- !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv)
- && (gv = (GV*)oldsv) ))) { /* Use GV from the stack as a fallback. */
- /* GV is potentially non-unique, or contain different CV. */
- sv_setsv(sv, newRV((SV*)cv));
+ sub_name = sv_newmortal();
+ gv_efullname3(sub_name, gv, Nullch);
+ DIE("Undefined subroutine &%s called", SvPVX(sub_name));
+ }
+
+ gimme = GIMME_V;
+ if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv))
+ cv = get_db_sub(&sv, cv);
+ if (!cv)
+ DIE("No DBsub routine");
+
+#ifdef USE_THREADS
+ /*
+ * First we need to check if the sub or method requires locking.
+ * If so, we gain a lock on the CV, the first argument or the
+ * stash (for static methods), as appropriate. This has to be
+ * inline because for FAKE_THREADS, COND_WAIT inlines code to
+ * reschedule by returning a new op.
+ */
+ MUTEX_LOCK(CvMUTEXP(cv));
+ if (CvFLAGS(cv) & CVf_LOCKED) {
+ MAGIC *mg;
+ if (CvFLAGS(cv) & CVf_PACKAGE) {
+ sv = (SV *) CvGV(cv);
+ }
+ else if (CvFLAGS(cv) & CVf_METHOD) {
+ if (SP > stack_base + TOPMARK)
+ sv = *(stack_base + TOPMARK + 1);
+ else {
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ croak("no argument for locked method call");
+ }
+ if (SvROK(sv))
+ sv = SvRV(sv);
+ else {
+ STRLEN len;
+ char *stashname = SvPV(sv, len);
+ sv = (SV*)gv_stashpvn(stashname, len, TRUE);
+ }
}
else {
- gv_efullname3(sv, gv, Nullch);
+ sv = (SV*)cv;
}
- cv = GvCV(DBsub);
- if (CvXSUB(cv)) curcopdb = curcop;
- if (!cv)
- DIE("No DBsub routine");
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ mg = condpair_magic(sv);
+ MUTEX_LOCK(MgMUTEXP(mg));
+ if (MgOWNER(mg) == thr)
+ MUTEX_UNLOCK(MgMUTEXP(mg));
+ else {
+ while (MgOWNER(mg))
+ COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg));
+ MgOWNER(mg) = thr;
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n",
+ thr, sv);)
+ MUTEX_UNLOCK(MgMUTEXP(mg));
+ SvREFCNT_inc(sv); /* Keep alive until magic_mutexfree */
+ save_destructor(unlock_condpair, sv);
+ }
+ MUTEX_LOCK(CvMUTEXP(cv));
}
+ /*
+ * Now we have permission to enter the sub, we must distinguish
+ * four cases. (0) It's an XSUB (in which case we don't care
+ * about ownership); (1) it's ours already (and we're recursing);
+ * (2) it's free (but we may already be using a cached clone);
+ * (3) another thread owns it. Case (1) is easy: we just use it.
+ * Case (2) means we look for a clone--if we have one, use it
+ * otherwise grab ownership of cv. Case (3) means we look for a
+ * clone (for non-XSUBs) and have to create one if we don't
+ * already have one.
+ * Why look for a clone in case (2) when we could just grab
+ * ownership of cv straight away? Well, we could be recursing,
+ * i.e. we originally tried to enter cv while another thread
+ * owned it (hence we used a clone) but it has been freed up
+ * and we're now recursing into it. It may or may not be "better"
+ * to use the clone but at least CvDEPTH can be trusted.
+ */
+ if (CvOWNER(cv) == thr || CvXSUB(cv))
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ else {
+ /* Case (2) or (3) */
+ SV **svp;
+
+ /*
+ * XXX Might it be better to release CvMUTEXP(cv) while we
+ * do the hv_fetch? We might find someone has pinched it
+ * when we look again, in which case we would be in case
+ * (3) instead of (2) so we'd have to clone. Would the fact
+ * that we released the mutex more quickly make up for this?
+ */
+ svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE);
+ if (svp) {
+ /* We already have a clone to use */
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ cv = *(CV**)svp;
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "entersub: %p already has clone %p:%s\n",
+ thr, cv, SvPEEK((SV*)cv)));
+ CvOWNER(cv) = thr;
+ SvREFCNT_inc(cv);
+ if (CvDEPTH(cv) == 0)
+ SAVEDESTRUCTOR(unset_cvowner, (void*) cv);
+ }
+ else {
+ /* (2) => grab ownership of cv. (3) => make clone */
+ if (!CvOWNER(cv)) {
+ CvOWNER(cv) = thr;
+ SvREFCNT_inc(cv);
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "entersub: %p grabbing %p:%s in stash %s\n",
+ thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ?
+ HvNAME(CvSTASH(cv)) : "(none)"));
+ } else {
+ /* Make a new clone. */
+ CV *clonecv;
+ SvREFCNT_inc(cv); /* don't let it vanish from under us */
+ MUTEX_UNLOCK(CvMUTEXP(cv));
+ DEBUG_L((PerlIO_printf(PerlIO_stderr(),
+ "entersub: %p cloning %p:%s\n",
+ thr, cv, SvPEEK((SV*)cv))));
+ /*
+ * We're creating a new clone so there's no race
+ * between the original MUTEX_UNLOCK and the
+ * SvREFCNT_inc since no one will be trying to undef
+ * it out from underneath us. At least, I don't think
+ * there's a race...
+ */
+ clonecv = cv_clone(cv);
+ SvREFCNT_dec(cv); /* finished with this */
+ hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0);
+ CvOWNER(clonecv) = thr;
+ cv = clonecv;
+ SvREFCNT_inc(cv);
+ }
+ DEBUG_L(if (CvDEPTH(cv) != 0)
+ PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n",
+ CvDEPTH(cv)););
+ SAVEDESTRUCTOR(unset_cvowner, (void*) cv);
+ }
+ }
+#endif /* USE_THREADS */
if (CvXSUB(cv)) {
if (CvOLDSTYLE(cv)) {
dMARK;
register I32 items = SP - MARK;
/* We dont worry to copy from @_. */
- while (sp > mark) {
- sp[1] = sp[0];
- sp--;
+ while (SP > mark) {
+ SP[1] = SP[0];
+ SP--;
}
stack_sp = mark + 1;
fp3 = (I32(*)_((int,int,int)))CvXSUB(cv);
/* Need to copy @_ to stack. Alternative may be to
* switch stack to @_, and copy return values
* back. This would allow popping @_ in XSUB, e.g.. XXXX */
- AV* av = GvAV(defgv);
- I32 items = AvFILL(av) + 1;
+ AV* av;
+ I32 items;
+#ifdef USE_THREADS
+ av = (AV*)curpad[0];
+#else
+ av = GvAV(defgv);
+#endif /* USE_THREADS */
+ items = AvFILLp(av) + 1; /* @_ is not tieable */
if (items) {
/* Mark is at the end of the stack. */
- EXTEND(sp, items);
- Copy(AvARRAY(av), sp + 1, items, SV*);
- sp += items;
+ EXTEND(SP, items);
+ Copy(AvARRAY(av), SP + 1, items, SV*);
+ SP += items;
PUTBACK ;
}
}
(void)SvREFCNT_inc(cv);
else { /* save temporaries on recursion? */
if (CvDEPTH(cv) == 100 && dowarn
- && !(perldb && cv == GvCV(DBsub)))
+ && !(PERLDB_SUB && cv == GvCV(DBsub)))
sub_crush_depth(cv);
- if (CvDEPTH(cv) > AvFILL(padlist)) {
+ if (CvDEPTH(cv) > AvFILLp(padlist)) {
AV *av;
AV *newpad = newAV();
SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]);
- I32 ix = AvFILL((AV*)svp[1]);
+ I32 ix = AvFILLp((AV*)svp[1]);
svp = AvARRAY(svp[0]);
for ( ;ix > 0; ix--) {
if (svp[ix] != &sv_undef) {
av_store(newpad, 0, (SV*)av);
AvFLAGS(av) = AVf_REIFY;
av_store(padlist, CvDEPTH(cv), (SV*)newpad);
- AvFILL(padlist) = CvDEPTH(cv);
+ AvFILLp(padlist) = CvDEPTH(cv);
svp = AvARRAY(padlist);
}
}
- SAVESPTR(curpad);
- curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]);
- if (hasargs) {
+#ifdef USE_THREADS
+ if (!hasargs) {
AV* av = (AV*)curpad[0];
+
+ items = AvFILLp(av) + 1;
+ if (items) {
+ /* Mark is at the end of the stack. */
+ EXTEND(SP, items);
+ Copy(AvARRAY(av), SP + 1, items, SV*);
+ SP += items;
+ PUTBACK ;
+ }
+ }
+#endif /* USE_THREADS */
+ SAVESPTR(curpad);
+ curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]);
+#ifndef USE_THREADS
+ if (hasargs)
+#endif /* USE_THREADS */
+ {
+ AV* av;
SV** ary;
+#if 0
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "%p entersub preparing @_\n", thr));
+#endif
+ av = (AV*)curpad[0];
if (AvREAL(av)) {
av_clear(av);
AvREAL_off(av);
}
+#ifndef USE_THREADS
cx->blk_sub.savearray = GvAV(defgv);
- cx->blk_sub.argarray = av;
GvAV(defgv) = (AV*)SvREFCNT_inc(av);
+#endif /* USE_THREADS */
+ cx->blk_sub.argarray = av;
++MARK;
if (items > AvMAX(av) + 1) {
}
}
Copy(MARK,AvARRAY(av),items,SV*);
- AvFILL(av) = items - 1;
+ AvFILLp(av) = items - 1;
while (items--) {
if (*MARK)
MARK++;
}
}
+#if 0
+ DEBUG_L(PerlIO_printf(PerlIO_stderr(),
+ "%p entersub returning %p\n", thr, CvSTART(cv)));
+#endif
RETURNOP(CvSTART(cv));
}
}
void
-sub_crush_depth(cv)
-CV* cv;
+sub_crush_depth(CV *cv)
{
if (CvANON(cv))
warn("Deep recursion on anonymous subroutine");
PP(pp_aelem)
{
- dSP;
+ djSP;
SV** svp;
I32 elem = POPi;
AV* av = (AV*)POPs;
RETURN;
}
if (op->op_private & OPpLVAL_INTRO)
- save_svref(svp);
+ save_aelem(av, elem, svp);
else if (op->op_private & OPpDEREF)
vivify_ref(*svp, op->op_private & OPpDEREF);
}
}
void
-vivify_ref(sv, to_what)
-SV* sv;
-U32 to_what;
+vivify_ref(SV *sv, U32 to_what)
{
if (SvGMAGICAL(sv))
mg_get(sv);
}
switch (to_what) {
case OPpDEREF_SV:
- SvRV(sv) = newSV(0);
+ SvRV(sv) = NEWSV(355,0);
break;
case OPpDEREF_AV:
SvRV(sv) = (SV*)newAV();
PP(pp_method)
{
- dSP;
+ djSP;
SV* sv;
SV* ob;
GV* gv;
- SV* nm;
+ HV* stash;
+ char* name;
+ char* packname;
+ STRLEN packlen;
+
+ if (SvROK(TOPs)) {
+ sv = SvRV(TOPs);
+ if (SvTYPE(sv) == SVt_PVCV) {
+ SETs(sv);
+ RETURN;
+ }
+ }
- nm = TOPs;
+ name = SvPV(TOPs, na);
sv = *(stack_base + TOPMARK + 1);
- gv = 0;
if (SvGMAGICAL(sv))
mg_get(sv);
if (SvROK(sv))
ob = (SV*)SvRV(sv);
else {
GV* iogv;
- char* packname = 0;
- STRLEN packlen;
+ packname = Nullch;
if (!SvOK(sv) ||
!(packname = SvPV(sv, packlen)) ||
!(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) ||
!(ob=(SV*)GvIO(iogv)))
{
- char *name = SvPV(nm, na);
- HV *stash;
- if (!packname || !isALPHA(*packname))
-DIE("Can't call method \"%s\" without a package or object reference", name);
- if (!(stash = gv_stashpvn(packname, packlen, FALSE))) {
- if (gv_stashpvn("UNIVERSAL", 9, FALSE))
- stash = gv_stashpvn(packname, packlen, TRUE);
- else
- DIE("Can't call method \"%s\" in empty package \"%s\"",
- name, packname);
- }
- gv = gv_fetchmethod(stash,name);
- if (!gv)
- DIE("Can't locate object method \"%s\" via package \"%s\"",
- name, packname);
- SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv);
- RETURN;
+ if (!packname || !isIDFIRST(*packname))
+ DIE("Can't call method \"%s\" without a package or object reference", name);
+ stash = gv_stashpvn(packname, packlen, TRUE);
+ goto fetch;
}
*(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv));
}
- if (!ob || !SvOBJECT(ob)) {
- char *name = SvPV(nm, na);
+ if (!ob || !SvOBJECT(ob))
DIE("Can't call method \"%s\" on unblessed reference", name);
- }
- if (!gv) { /* nothing cached */
- char *name = SvPV(nm, na);
- gv = gv_fetchmethod(SvSTASH(ob),name);
- if (!gv)
- DIE("Can't locate object method \"%s\" via package \"%s\"",
- name, HvNAME(SvSTASH(ob)));
- }
+ stash = SvSTASH(ob);
+
+ fetch:
+ gv = gv_fetchmethod(stash, name);
+ if (!gv) {
+ char* leaf = name;
+ char* sep = Nullch;
+ char* p;
+ for (p = name; *p; p++) {
+ if (*p == '\'')
+ sep = p, leaf = p + 1;
+ else if (*p == ':' && *(p + 1) == ':')
+ sep = p, leaf = p + 2;
+ }
+ if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) {
+ packname = HvNAME(sep ? curcop->cop_stash : stash);
+ packlen = strlen(packname);
+ }
+ else {
+ packname = name;
+ packlen = sep - name;
+ }
+ DIE("Can't locate object method \"%s\" via package \"%.*s\"",
+ leaf, (int)packlen, packname);
+ }
SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv);
RETURN;
}
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