X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=av.c;h=97f0ff8180ea5855963104d835ce96fb06e99259;hb=9ef261b5e9ba232556e09d48dcf0e3964298f8f6;hp=daba15b14823cfa3fe4bbe636774bbaf02b9e9c7;hpb=e336de0d01f30cc4061b6d6a00d11df30fc67cd3;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/av.c b/av.c
index daba15b..97f0ff8 100644
--- a/av.c
+++ b/av.c
@@ -21,26 +21,27 @@ av_reify(AV *av)
     I32 key;
     SV* sv;
 
-    if (AvREAL(av))                           
-	return;          
+    if (AvREAL(av))
+	return;
 #ifdef DEBUGGING
-    if (SvRMAGICAL(av) && mg_find((SV*)av,'P')) 
+    if (SvTIED_mg((SV*)av, 'P'))
 	warn("av_reify called on tied array");
 #endif
     key = AvMAX(av) + 1;
     while (key > AvFILLp(av) + 1)
-	AvARRAY(av)[--key] = &sv_undef;
+	AvARRAY(av)[--key] = &PL_sv_undef;
     while (key) {
 	sv = AvARRAY(av)[--key];
 	assert(sv);
-	if (sv != &sv_undef) {
+	if (sv != &PL_sv_undef) {
 	    dTHR;
 	    (void)SvREFCNT_inc(sv);
 	}
     }
     key = AvARRAY(av) - AvALLOC(av);
     while (key)
-	AvALLOC(av)[--key] = &sv_undef;
+	AvALLOC(av)[--key] = &PL_sv_undef;
+    AvREIFY_off(av);
     AvREAL_on(av);
 }
 
@@ -49,18 +50,18 @@ av_extend(AV *av, I32 key)
 {
     dTHR;			/* only necessary if we have to extend stack */
     MAGIC *mg;
-    if (SvRMAGICAL(av) && (mg = mg_find((SV*)av,'P'))) {
+    if (mg = SvTIED_mg((SV*)av, 'P')) {
 	dSP;
 	ENTER;
 	SAVETMPS;
-	PUSHSTACK(SI_MAGIC);
+	PUSHSTACKi(PERLSI_MAGIC);
 	PUSHMARK(SP);
 	EXTEND(SP,2);
-	PUSHs(mg->mg_obj);
+	PUSHs(SvTIED_obj((SV*)av, mg));
 	PUSHs(sv_2mortal(newSViv(key+1)));
         PUTBACK;
 	perl_call_method("EXTEND", G_SCALAR|G_DISCARD);
-	POPSTACK();
+	POPSTACK;
 	FREETMPS;
 	LEAVE;
 	return;
@@ -78,7 +79,7 @@ av_extend(AV *av, I32 key)
 	    SvPVX(av) = (char*)AvALLOC(av);
 	    if (AvREAL(av)) {
 		while (tmp)
-		    ary[--tmp] = &sv_undef;
+		    ary[--tmp] = &PL_sv_undef;
 	    }
 	    
 	    if (key > AvMAX(av) - 10) {
@@ -92,9 +93,15 @@ av_extend(AV *av, I32 key)
 		U32 bytes;
 #endif
 
+#if defined(MYMALLOC) && !defined(PURIFY) && !defined(LEAKTEST)
+		newmax = malloced_size((void*)AvALLOC(av))/sizeof(SV*) - 1;
+
+		if (key <= newmax) 
+		    goto resized;
+#endif 
 		newmax = key + AvMAX(av) / 5;
 	      resize:
-#ifdef STRANGE_MALLOC
+#if defined(STRANGE_MALLOC) || defined(MYMALLOC)
 		Renew(AvALLOC(av),newmax+1, SV*);
 #else
 		bytes = (newmax + 1) * sizeof(SV*);
@@ -114,24 +121,25 @@ av_extend(AV *av, I32 key)
 		    Safefree(AvALLOC(av));
 		AvALLOC(av) = ary;
 #endif
+	      resized:
 		ary = AvALLOC(av) + AvMAX(av) + 1;
 		tmp = newmax - AvMAX(av);
-		if (av == curstack) {	/* Oops, grew stack (via av_store()?) */
-		    stack_sp = AvALLOC(av) + (stack_sp - stack_base);
-		    stack_base = AvALLOC(av);
-		    stack_max = stack_base + newmax;
+		if (av == PL_curstack) {	/* Oops, grew stack (via av_store()?) */
+		    PL_stack_sp = AvALLOC(av) + (PL_stack_sp - PL_stack_base);
+		    PL_stack_base = AvALLOC(av);
+		    PL_stack_max = PL_stack_base + newmax;
 		}
 	    }
 	    else {
-		newmax = key < 4 ? 4 : key;
+		newmax = key < 3 ? 3 : key;
 		New(2,AvALLOC(av), newmax+1, SV*);
 		ary = AvALLOC(av) + 1;
 		tmp = newmax;
-		AvALLOC(av)[0] = &sv_undef;	/* For the stacks */
+		AvALLOC(av)[0] = &PL_sv_undef;	/* For the stacks */
 	    }
 	    if (AvREAL(av)) {
 		while (tmp)
-		    ary[--tmp] = &sv_undef;
+		    ary[--tmp] = &PL_sv_undef;
 	    }
 	    
 	    SvPVX(av) = (char*)AvALLOC(av);
@@ -155,25 +163,22 @@ av_fetch(register AV *av, I32 key, I32 lval)
     }
 
     if (SvRMAGICAL(av)) {
-	if (mg_find((SV*)av,'P')) {
+	if (mg_find((SV*)av,'P') || mg_find((SV*)av,'D')) {
 	    dTHR;
 	    sv = sv_newmortal();
 	    mg_copy((SV*)av, sv, 0, key);
-	    av_fetch_sv = sv;
-	    return &av_fetch_sv;
+	    PL_av_fetch_sv = sv;
+	    return &PL_av_fetch_sv;
 	}
     }
 
     if (key > AvFILLp(av)) {
 	if (!lval)
 	    return 0;
-	if (AvREALISH(av))
-	    sv = NEWSV(5,0);
-	else
-	    sv = sv_newmortal();
+	sv = NEWSV(5,0);
 	return av_store(av,key,sv);
     }
-    if (AvARRAY(av)[key] == &sv_undef) {
+    if (AvARRAY(av)[key] == &PL_sv_undef) {
     emptyness:
 	if (lval) {
 	    sv = NEWSV(6,0);
@@ -184,7 +189,7 @@ av_fetch(register AV *av, I32 key, I32 lval)
     else if (AvREIFY(av)
 	     && (!AvARRAY(av)[key]	/* eg. @_ could have freed elts */
 		 || SvTYPE(AvARRAY(av)[key]) == SVTYPEMASK)) {
-	AvARRAY(av)[key] = &sv_undef;	/* 1/2 reify */
+	AvARRAY(av)[key] = &PL_sv_undef;	/* 1/2 reify */
 	goto emptyness;
     }
     return &AvARRAY(av)[key];
@@ -200,7 +205,7 @@ av_store(register AV *av, I32 key, SV *val)
     if (!av)
 	return 0;
     if (!val)
-	val = &sv_undef;
+	val = &PL_sv_undef;
 
     if (key < 0) {
 	key += AvFILL(av) + 1;
@@ -209,11 +214,11 @@ av_store(register AV *av, I32 key, SV *val)
     }
 
     if (SvREADONLY(av) && key >= AvFILL(av))
-	croak(no_modify);
+	croak(PL_no_modify);
 
     if (SvRMAGICAL(av)) {
 	if (mg_find((SV*)av,'P')) {
-	    if (val != &sv_undef) {
+	    if (val != &PL_sv_undef) {
 		mg_copy((SV*)av, val, 0, key);
 	    }
 	    return 0;
@@ -228,10 +233,10 @@ av_store(register AV *av, I32 key, SV *val)
     if (AvFILLp(av) < key) {
 	if (!AvREAL(av)) {
 	    dTHR;
-	    if (av == curstack && key > stack_sp - stack_base)
-		stack_sp = stack_base + key;	/* XPUSH in disguise */
+	    if (av == PL_curstack && key > PL_stack_sp - PL_stack_base)
+		PL_stack_sp = PL_stack_base + key;	/* XPUSH in disguise */
 	    do
-		ary[++AvFILLp(av)] = &sv_undef;
+		ary[++AvFILLp(av)] = &PL_sv_undef;
 	    while (AvFILLp(av) < key);
 	}
 	AvFILLp(av) = key;
@@ -240,7 +245,7 @@ av_store(register AV *av, I32 key, SV *val)
 	SvREFCNT_dec(ary[key]);
     ary[key] = val;
     if (SvSMAGICAL(av)) {
-	if (val != &sv_undef) {
+	if (val != &PL_sv_undef) {
 	    MAGIC* mg = SvMAGIC(av);
 	    sv_magic(val, (SV*)av, toLOWER(mg->mg_type), 0, key);
 	}
@@ -327,6 +332,9 @@ av_clear(register AV *av)
 	return;
     /*SUPPRESS 560*/
 
+    if (SvREADONLY(av))
+	croak(PL_no_modify);
+
     /* Give any tie a chance to cleanup first */
     if (SvRMAGICAL(av))
 	mg_clear((SV*)av); 
@@ -339,7 +347,7 @@ av_clear(register AV *av)
 	key = AvFILLp(av) + 1;
 	while (key) {
 	    SvREFCNT_dec(ary[--key]);
-	    ary[key] = &sv_undef;
+	    ary[key] = &PL_sv_undef;
 	}
     }
     if (key = AvARRAY(av) - AvALLOC(av)) {
@@ -360,7 +368,7 @@ av_undef(register AV *av)
     /*SUPPRESS 560*/
 
     /* Give any tie a chance to cleanup first */
-    if (SvRMAGICAL(av) && mg_find((SV*)av,'P')) 
+    if (SvTIED_mg((SV*)av, 'P')) 
 	av_fill(av, -1);   /* mg_clear() ? */
 
     if (AvREAL(av)) {
@@ -369,7 +377,6 @@ av_undef(register AV *av)
 	    SvREFCNT_dec(AvARRAY(av)[--key]);
     }
     Safefree(AvALLOC(av));
-    SvPVX(av) = 0;
     AvALLOC(av) = 0;
     SvPVX(av) = 0;
     AvMAX(av) = AvFILLp(av) = -1;
@@ -386,20 +393,20 @@ av_push(register AV *av, SV *val)
     if (!av)
 	return;
     if (SvREADONLY(av))
-	croak(no_modify);
+	croak(PL_no_modify);
 
-    if (SvRMAGICAL(av) && (mg = mg_find((SV*)av,'P'))) {
+    if (mg = SvTIED_mg((SV*)av, 'P')) {
 	dSP;
-	PUSHSTACK(SI_MAGIC);
+	PUSHSTACKi(PERLSI_MAGIC);
 	PUSHMARK(SP);
 	EXTEND(SP,2);
-	PUSHs(mg->mg_obj);
+	PUSHs(SvTIED_obj((SV*)av, mg));
 	PUSHs(val);
 	PUTBACK;
 	ENTER;
 	perl_call_method("PUSH", G_SCALAR|G_DISCARD);
 	LEAVE;
-	POPSTACK();
+	POPSTACK;
 	return;
     }
     av_store(av,AvFILLp(av)+1,val);
@@ -412,27 +419,27 @@ av_pop(register AV *av)
     MAGIC* mg;
 
     if (!av || AvFILL(av) < 0)
-	return &sv_undef;
+	return &PL_sv_undef;
     if (SvREADONLY(av))
-	croak(no_modify);
-    if (SvRMAGICAL(av) && (mg = mg_find((SV*)av,'P'))) {
+	croak(PL_no_modify);
+    if (mg = SvTIED_mg((SV*)av, 'P')) {
 	dSP;    
-	PUSHSTACK(SI_MAGIC);
+	PUSHSTACKi(PERLSI_MAGIC);
 	PUSHMARK(SP);
-	XPUSHs(mg->mg_obj);
+	XPUSHs(SvTIED_obj((SV*)av, mg));
 	PUTBACK;
 	ENTER;
 	if (perl_call_method("POP", G_SCALAR)) {
-	    retval = newSVsv(*stack_sp--);    
+	    retval = newSVsv(*PL_stack_sp--);    
 	} else {    
-	    retval = &sv_undef;
+	    retval = &PL_sv_undef;
 	}
 	LEAVE;
-	POPSTACK();
+	POPSTACK;
 	return retval;
     }
     retval = AvARRAY(av)[AvFILLp(av)];
-    AvARRAY(av)[AvFILLp(av)--] = &sv_undef;
+    AvARRAY(av)[AvFILLp(av)--] = &PL_sv_undef;
     if (SvSMAGICAL(av))
 	mg_set((SV*)av);
     return retval;
@@ -448,22 +455,22 @@ av_unshift(register AV *av, register I32 num)
     if (!av || num <= 0)
 	return;
     if (SvREADONLY(av))
-	croak(no_modify);
+	croak(PL_no_modify);
 
-    if (SvRMAGICAL(av) && (mg = mg_find((SV*)av,'P'))) {
+    if (mg = SvTIED_mg((SV*)av, 'P')) {
 	dSP;
-	PUSHSTACK(SI_MAGIC);
+	PUSHSTACKi(PERLSI_MAGIC);
 	PUSHMARK(SP);
 	EXTEND(SP,1+num);
-	PUSHs(mg->mg_obj);
+	PUSHs(SvTIED_obj((SV*)av, mg));
 	while (num-- > 0) {
-	    PUSHs(&sv_undef);
+	    PUSHs(&PL_sv_undef);
 	}
 	PUTBACK;
 	ENTER;
 	perl_call_method("UNSHIFT", G_SCALAR|G_DISCARD);
 	LEAVE;
-	POPSTACK();
+	POPSTACK;
 	return;
     }
 
@@ -479,14 +486,14 @@ av_unshift(register AV *av, register I32 num)
 	AvFILLp(av) += i;
 	SvPVX(av) = (char*)(AvARRAY(av) - i);
     }
-    if (num) {     
+    if (num) {
 	i = AvFILLp(av);
 	av_extend(av, i + num);
 	AvFILLp(av) += num;
 	ary = AvARRAY(av);
 	Move(ary, ary + num, i + 1, SV*);
 	do {
-	    ary[--num] = &sv_undef;
+	    ary[--num] = &PL_sv_undef;
 	} while (num);
     }
 }
@@ -498,28 +505,28 @@ av_shift(register AV *av)
     MAGIC* mg;
 
     if (!av || AvFILL(av) < 0)
-	return &sv_undef;
+	return &PL_sv_undef;
     if (SvREADONLY(av))
-	croak(no_modify);
-    if (SvRMAGICAL(av) && (mg = mg_find((SV*)av,'P'))) {
+	croak(PL_no_modify);
+    if (mg = SvTIED_mg((SV*)av, 'P')) {
 	dSP;
-	PUSHSTACK(SI_MAGIC);
+	PUSHSTACKi(PERLSI_MAGIC);
 	PUSHMARK(SP);
-	XPUSHs(mg->mg_obj);
+	XPUSHs(SvTIED_obj((SV*)av, mg));
 	PUTBACK;
 	ENTER;
 	if (perl_call_method("SHIFT", G_SCALAR)) {
-	    retval = newSVsv(*stack_sp--);            
+	    retval = newSVsv(*PL_stack_sp--);            
 	} else {    
-	    retval = &sv_undef;
+	    retval = &PL_sv_undef;
 	}     
 	LEAVE;
-	POPSTACK();
+	POPSTACK;
 	return retval;
     }
     retval = *AvARRAY(av);
     if (AvREAL(av))
-	*AvARRAY(av) = &sv_undef;
+	*AvARRAY(av) = &PL_sv_undef;
     SvPVX(av) = (char*)(AvARRAY(av) + 1);
     AvMAX(av)--;
     AvFILLp(av)--;
@@ -542,18 +549,18 @@ av_fill(register AV *av, I32 fill)
 	croak("panic: null array");
     if (fill < 0)
 	fill = -1;
-    if (SvRMAGICAL(av) && (mg = mg_find((SV*)av,'P'))) {
+    if (mg = SvTIED_mg((SV*)av, 'P')) {
 	dSP;            
 	ENTER;
 	SAVETMPS;
-	PUSHSTACK(SI_MAGIC);
+	PUSHSTACKi(PERLSI_MAGIC);
 	PUSHMARK(SP);
 	EXTEND(SP,2);
-	PUSHs(mg->mg_obj);
+	PUSHs(SvTIED_obj((SV*)av, mg));
 	PUSHs(sv_2mortal(newSViv(fill+1)));
 	PUTBACK;
 	perl_call_method("STORESIZE", G_SCALAR|G_DISCARD);
-	POPSTACK();
+	POPSTACK;
 	FREETMPS;
 	LEAVE;
 	return;
@@ -565,12 +572,12 @@ av_fill(register AV *av, I32 fill)
 	if (AvREAL(av)) {
 	    while (key > fill) {
 		SvREFCNT_dec(ary[key]);
-		ary[key--] = &sv_undef;
+		ary[key--] = &PL_sv_undef;
 	    }
 	}
 	else {
 	    while (key < fill)
-		ary[++key] = &sv_undef;
+		ary[++key] = &PL_sv_undef;
 	}
 	    
 	AvFILLp(av) = fill;
@@ -578,17 +585,28 @@ av_fill(register AV *av, I32 fill)
 	    mg_set((SV*)av);
     }
     else
-	(void)av_store(av,fill,&sv_undef);
+	(void)av_store(av,fill,&PL_sv_undef);
+}
+
+
+/* AVHV: Support for treating arrays as if they were hashes.  The
+ * first element of the array should be a hash reference that maps
+ * hash keys to array indices.
+ */
+
+STATIC I32
+avhv_index_sv(SV* sv)
+{
+    I32 index = SvIV(sv);
+    if (index < 1)
+	croak("Bad index while coercing array into hash");
+    return index;    
 }
 
-  
 HV*
 avhv_keys(AV *av)
 {
-    SV **keysp;
-    HV *keys = Nullhv;
-
-    keysp = av_fetch(av, 0, FALSE);
+    SV **keysp = av_fetch(av, 0, FALSE);
     if (keysp) {
 	SV *sv = *keysp;
 	if (SvGMAGICAL(sv))
@@ -596,34 +614,11 @@ avhv_keys(AV *av)
 	if (SvROK(sv)) {
 	    sv = SvRV(sv);
 	    if (SvTYPE(sv) == SVt_PVHV)
-		keys = (HV*)sv;
+		return (HV*)sv;
 	}
     }
-    if (!keys)
-	croak("Can't coerce array into hash");
-    return keys;
-}
-
-SV**
-avhv_fetch(AV *av, char *key, U32 klen, I32 lval)
-{
-    SV **indsvp;
-    HV *keys = avhv_keys(av);
-    I32 ind;
-    
-    indsvp = hv_fetch(keys, key, klen, FALSE);
-    if (indsvp) {
-	ind = SvIV(*indsvp);
-	if (ind < 1)
-	    croak("Bad index while coercing array into hash");
-    } else {
-	if (!lval)
-	    return 0;
-	
-	ind = AvFILL(av) + 1;
-	hv_store(keys, key, klen, newSViv(ind), 0);
-    }
-    return av_fetch(av, ind, lval);
+    croak("Can't coerce array into hash");
+    return Nullhv;
 }
 
 SV**
@@ -632,59 +627,11 @@ avhv_fetch_ent(AV *av, SV *keysv, I32 lval, U32 hash)
     SV **indsvp;
     HV *keys = avhv_keys(av);
     HE *he;
-    I32 ind;
-    
-    he = hv_fetch_ent(keys, keysv, FALSE, hash);
-    if (he) {
-	ind = SvIV(HeVAL(he));
-	if (ind < 1)
-	    croak("Bad index while coercing array into hash");
-    } else {
-	if (!lval)
-	    return 0;
-	
-	ind = AvFILL(av) + 1;
-	hv_store_ent(keys, keysv, newSViv(ind), 0);
-    }
-    return av_fetch(av, ind, lval);
-}
-
-SV**
-avhv_store(AV *av, char *key, U32 klen, SV *val, U32 hash)
-{
-    SV **indsvp;
-    HV *keys = avhv_keys(av);
-    I32 ind;
-    
-    indsvp = hv_fetch(keys, key, klen, FALSE);
-    if (indsvp) {
-	ind = SvIV(*indsvp);
-	if (ind < 1)
-	    croak("Bad index while coercing array into hash");
-    } else {
-	ind = AvFILL(av) + 1;
-	hv_store(keys, key, klen, newSViv(ind), hash);
-    }
-    return av_store(av, ind, val);
-}
-
-SV**
-avhv_store_ent(AV *av, SV *keysv, SV *val, U32 hash)
-{
-    HV *keys = avhv_keys(av);
-    HE *he;
-    I32 ind;
     
     he = hv_fetch_ent(keys, keysv, FALSE, hash);
-    if (he) {
-	ind = SvIV(HeVAL(he));
-	if (ind < 1)
-	    croak("Bad index while coercing array into hash");
-    } else {
-	ind = AvFILL(av) + 1;
-	hv_store_ent(keys, keysv, newSViv(ind), hash);
-    }
-    return av_store(av, ind, val);
+    if (!he)
+        croak("No such array field");
+    return av_fetch(av, avhv_index_sv(HeVAL(he)), lval);
 }
 
 bool
@@ -694,76 +641,6 @@ avhv_exists_ent(AV *av, SV *keysv, U32 hash)
     return hv_exists_ent(keys, keysv, hash);
 }
 
-bool
-avhv_exists(AV *av, char *key, U32 klen)
-{
-    HV *keys = avhv_keys(av);
-    return hv_exists(keys, key, klen);
-}
-
-/* avhv_delete leaks. Caller can re-index and compress if so desired. */
-SV *
-avhv_delete(AV *av, char *key, U32 klen, I32 flags)
-{
-    HV *keys = avhv_keys(av);
-    SV *sv;
-    SV **svp;
-    I32 ind;
-    
-    sv = hv_delete(keys, key, klen, 0);
-    if (!sv)
-	return Nullsv;
-    ind = SvIV(sv);
-    if (ind < 1)
-	croak("Bad index while coercing array into hash");
-    svp = av_fetch(av, ind, FALSE);
-    if (!svp)
-	return Nullsv;
-    if (flags & G_DISCARD) {
-	sv = Nullsv;
-	SvREFCNT_dec(*svp);
-    } else {
-	sv = sv_2mortal(*svp);
-    }
-    *svp = &sv_undef;
-    return sv;
-}
-
-/* avhv_delete_ent leaks. Caller can re-index and compress if so desired. */
-SV *
-avhv_delete_ent(AV *av, SV *keysv, I32 flags, U32 hash)
-{
-    HV *keys = avhv_keys(av);
-    SV *sv;
-    SV **svp;
-    I32 ind;
-    
-    sv = hv_delete_ent(keys, keysv, 0, hash);
-    if (!sv)
-	return Nullsv;
-    ind = SvIV(sv);
-    if (ind < 1)
-	croak("Bad index while coercing array into hash");
-    svp = av_fetch(av, ind, FALSE);
-    if (!svp)
-	return Nullsv;
-    if (flags & G_DISCARD) {
-	sv = Nullsv;
-	SvREFCNT_dec(*svp);
-    } else {
-	sv = sv_2mortal(*svp);
-    }
-    *svp = &sv_undef;
-    return sv;
-}
-
-I32
-avhv_iterinit(AV *av)
-{
-    HV *keys = avhv_keys(av);
-    return hv_iterinit(keys);
-}
-
 HE *
 avhv_iternext(AV *av)
 {
@@ -774,32 +651,6 @@ avhv_iternext(AV *av)
 SV *
 avhv_iterval(AV *av, register HE *entry)
 {
-    HV *keys = avhv_keys(av);
-    SV *sv;
-    I32 ind;
-    
-    sv = hv_iterval(keys, entry);
-    ind = SvIV(sv);
-    if (ind < 1)
-	croak("Bad index while coercing array into hash");
-    return *av_fetch(av, ind, TRUE);
-}
-
-SV *
-avhv_iternextsv(AV *av, char **key, I32 *retlen)
-{
-    HV *keys = avhv_keys(av);
-    HE *he;
-    SV *sv;
-    I32 ind;
-    
-    he = hv_iternext(keys);
-    if (!he)
-        return Nullsv;
-    *key = hv_iterkey(he, retlen);
-    sv = hv_iterval(keys, he);
-    ind = SvIV(sv);
-    if (ind < 1)
-	croak("Bad index while coercing array into hash");
-    return *av_fetch(av, ind, TRUE);
+    SV *sv = hv_iterval(avhv_keys(av), entry);
+    return *av_fetch(av, avhv_index_sv(sv), TRUE);
 }