[asperl] integrate mainline changes

[p5sagit/p5-mst-13.2.git] / hv.c

diff --git a/hv.c b/hv.c
index add7a39..463cf30 100644 (file)
--- a/hv.c
+++ b/hv.c
@@ -14,12 +14,14 @@
 #include "EXTERN.h"
 #include "perl.h"
 
+static void hv_magic_check _((HV *hv, bool *needs_copy, bool *needs_store));
+#ifndef PERL_OBJECT
 static void hsplit _((HV *hv));
 static void hfreeentries _((HV *hv));
-static void hv_magic_check _((HV *hv, bool *needs_copy, bool *needs_store));
 static HE* more_he _((void));
+#endif
 
-static HE*
+STATIC HE*
 new_he(void)
 {
     HE* he;
@@ -31,19 +33,19 @@ new_he(void)
     return more_he();
 }
 
-static void
+STATIC void
 del_he(HE *p)
 {
     HeNEXT(p) = (HE*)he_root;
     he_root = p;
 }
 
-static HE*
+STATIC HE*
 more_he(void)
 {
     register HE* he;
     register HE* heend;
-    he_root = (HE*)safemalloc(1008);
+    New(54, he_root, 1008/sizeof(HE), HE);
     he = he_root;
     heend = &he[1008 / sizeof(HE) - 1];
     while (he < heend) {
@@ -54,7 +56,7 @@ more_he(void)
     return new_he();
 }
 
-static HEK *
+STATIC HEK *
 save_hek(char *str, I32 len, U32 hash)
 {
     char *k;
@@ -94,8 +96,8 @@ hv_fetch(HV *hv, char *key, U32 klen, I32 lval)
            dTHR;
            sv = sv_newmortal();
            mg_copy((SV*)hv, sv, key, klen);
-           Sv = sv;
-           return &Sv;
+           hv_fetch_sv = sv;
+           return &hv_fetch_sv;
        }
 #ifdef ENV_IS_CASELESS
        else if (mg_find((SV*)hv,'E')) {
@@ -140,7 +142,7 @@ hv_fetch(HV *hv, char *key, U32 klen, I32 lval)
     if (HvNAME(hv) && strEQ(HvNAME(hv),ENV_HV_NAME)) {
       char *gotenv;
 
-      if ((gotenv = ENV_getenv(key)) != Nullch) {
+      if ((gotenv = PerlEnv_getenv(key)) != Nullch) {
         sv = newSVpv(gotenv,strlen(gotenv));
         SvTAINTED_on(sv);
         return hv_store(hv,key,klen,sv,hash);
@@ -170,19 +172,18 @@ hv_fetch_ent(HV *hv, SV *keysv, I32 lval, register U32 hash)
 
     if (SvRMAGICAL(hv)) {
        if (mg_find((SV*)hv,'P')) {
-           static HE mh;
-
+           dTHR;
            sv = sv_newmortal();
            keysv = sv_2mortal(newSVsv(keysv));
            mg_copy((SV*)hv, sv, (char*)keysv, HEf_SVKEY);
-           if (!HeKEY_hek(&mh)) {
+           if (!HeKEY_hek(&hv_fetch_ent_mh)) {
                char *k;
                New(54, k, HEK_BASESIZE + sizeof(SV*), char);
-               HeKEY_hek(&mh) = (HEK*)k;
+               HeKEY_hek(&hv_fetch_ent_mh) = (HEK*)k;
            }
-           HeSVKEY_set(&mh, keysv);
-           HeVAL(&mh) = sv;
-           return &mh;
+           HeSVKEY_set(&hv_fetch_ent_mh, keysv);
+           HeVAL(&hv_fetch_ent_mh) = sv;
+           return &hv_fetch_ent_mh;
        }
 #ifdef ENV_IS_CASELESS
        else if (mg_find((SV*)hv,'E')) {
@@ -232,7 +233,7 @@ hv_fetch_ent(HV *hv, SV *keysv, I32 lval, register U32 hash)
     if (HvNAME(hv) && strEQ(HvNAME(hv),ENV_HV_NAME)) {
       char *gotenv;
 
-      if ((gotenv = ENV_getenv(key)) != Nullch) {
+      if ((gotenv = PerlEnv_getenv(key)) != Nullch) {
         sv = newSVpv(gotenv,strlen(gotenv));
         SvTAINTED_on(sv);
         return hv_store_ent(hv,keysv,sv,hash);
@@ -257,7 +258,6 @@ hv_magic_check (HV *hv, bool *needs_copy, bool *needs_store)
            *needs_copy = TRUE;
            switch (mg->mg_type) {
            case 'P':
-           case 'I':
            case 'S':
                *needs_store = FALSE;
            }
@@ -424,26 +424,33 @@ hv_delete(HV *hv, char *key, U32 klen, I32 flags)
     register U32 hash;
     register HE *entry;
     register HE **oentry;
+    SV **svp;
     SV *sv;
 
     if (!hv)
        return Nullsv;
     if (SvRMAGICAL(hv)) {
-       sv = *hv_fetch(hv, key, klen, TRUE);
-       mg_clear(sv);
-       if (mg_find(sv, 's')) {
-           return Nullsv;              /* %SIG elements cannot be deleted */
-       }
-       else if (mg_find(sv, 'p')) {
-           sv_unmagic(sv, 'p');        /* No longer an element */
-           return sv;
-       }
+       bool needs_copy;
+       bool needs_store;
+       hv_magic_check (hv, &needs_copy, &needs_store);
+
+       if (needs_copy && (svp = hv_fetch(hv, key, klen, TRUE))) {
+           sv = *svp;
+           mg_clear(sv);
+           if (!needs_store) {
+               if (mg_find(sv, 'p')) {
+                   sv_unmagic(sv, 'p');        /* No longer an element */
+                   return sv;
+               }
+               return Nullsv;          /* element cannot be deleted */
+           }
 #ifdef ENV_IS_CASELESS
-       else if (mg_find((SV*)hv,'E')) {
-           sv = sv_2mortal(newSVpv(key,klen));
-           key = strupr(SvPVX(sv));
-       }
+           else if (mg_find((SV*)hv,'E')) {
+               sv = sv_2mortal(newSVpv(key,klen));
+               key = strupr(SvPVX(sv));
+           }
 #endif
+        }
     }
     xhv = (XPVHV*)SvANY(hv);
     if (!xhv->xhv_array)
@@ -492,21 +499,29 @@ hv_delete_ent(HV *hv, SV *keysv, I32 flags, U32 hash)
     if (!hv)
        return Nullsv;
     if (SvRMAGICAL(hv)) {
-       entry = hv_fetch_ent(hv, keysv, TRUE, hash);
-       sv = HeVAL(entry);
-       mg_clear(sv);
-       if (mg_find(sv, 'p')) {
-           sv_unmagic(sv, 'p');        /* No longer an element */
-           return sv;
-       }
+       bool needs_copy;
+       bool needs_store;
+       hv_magic_check (hv, &needs_copy, &needs_store);
+
+       if (needs_copy && (entry = hv_fetch_ent(hv, keysv, TRUE, hash))) {
+           sv = HeVAL(entry);
+           mg_clear(sv);
+           if (!needs_store) {
+               if (mg_find(sv, 'p')) {
+                   sv_unmagic(sv, 'p');        /* No longer an element */
+                   return sv;
+               }               
+               return Nullsv;          /* element cannot be deleted */
+           }
 #ifdef ENV_IS_CASELESS
-       else if (mg_find((SV*)hv,'E')) {
-           key = SvPV(keysv, klen);
-           keysv = sv_2mortal(newSVpv(key,klen));
-           (void)strupr(SvPVX(keysv));
-           hash = 0; 
-       }
+           else if (mg_find((SV*)hv,'E')) {
+               key = SvPV(keysv, klen);
+               keysv = sv_2mortal(newSVpv(key,klen));
+               (void)strupr(SvPVX(keysv));
+               hash = 0; 
+           }
 #endif
+       }
     }
     xhv = (XPVHV*)SvANY(hv);
     if (!xhv->xhv_array)
@@ -643,7 +658,7 @@ hv_exists_ent(HV *hv, SV *keysv, U32 hash)
     return FALSE;
 }
 
-static void
+STATIC void
 hsplit(HV *hv)
 {
     register XPVHV* xhv = (XPVHV*)SvANY(hv);
@@ -662,6 +677,10 @@ hsplit(HV *hv)
     nomemok = TRUE;
 #ifdef STRANGE_MALLOC
     Renew(a, newsize, HE*);
+    if (!a) {
+      nomemok = FALSE;
+      return;
+    }
 #else
     i = newsize * sizeof(HE*);
 #define MALLOC_OVERHEAD 16
@@ -672,6 +691,10 @@ hsplit(HV *hv)
     tmp /= sizeof(HE*);
     assert(tmp >= newsize);
     New(2,a, tmp, HE*);
+    if (!a) {
+      nomemok = FALSE;
+      return;
+    }
     Copy(xhv->xhv_array, a, oldsize, HE*);
     if (oldsize >= 64) {
        offer_nice_chunk(xhv->xhv_array,
@@ -735,6 +758,10 @@ hv_ksplit(HV *hv, IV newmax)
        nomemok = TRUE;
 #ifdef STRANGE_MALLOC
        Renew(a, newsize, HE*);
+        if (!a) {
+         nomemok = FALSE;
+         return;
+       }
 #else
        i = newsize * sizeof(HE*);
        j = MALLOC_OVERHEAD;
@@ -744,6 +771,10 @@ hv_ksplit(HV *hv, IV newmax)
        j /= sizeof(HE*);
        assert(j >= newsize);
        New(2, a, j, HE*);
+        if (!a) {
+         nomemok = FALSE;
+         return;
+       }
        Copy(xhv->xhv_array, a, oldsize, HE*);
        if (oldsize >= 64) {
            offer_nice_chunk(xhv->xhv_array,
@@ -807,11 +838,14 @@ newHV(void)
 void
 hv_free_ent(HV *hv, register HE *entry)
 {
+    SV *val;
+
     if (!entry)
        return;
-    if (isGV(HeVAL(entry)) && GvCVu(HeVAL(entry)) && HvNAME(hv))
+    val = HeVAL(entry);
+    if (val && isGV(val) && GvCVu(val) && HvNAME(hv))
        sub_generation++;       /* may be deletion of method from stash */
-    SvREFCNT_dec(HeVAL(entry));
+    SvREFCNT_dec(val);
     if (HeKLEN(entry) == HEf_SVKEY) {
        SvREFCNT_dec(HeKEY_sv(entry));
         Safefree(HeKEY_hek(entry));
@@ -859,7 +893,7 @@ hv_clear(HV *hv)
        mg_clear((SV*)hv); 
 }
 
-static void
+STATIC void
 hfreeentries(HV *hv)
 {
     register HE **array;