/* hv.c
*
- * Copyright (c) 1991-1994, Larry Wall
+ * Copyright (c) 1991-1997, 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.
char *k;
register HEK *hek;
- New(54, k, sizeof(U32) + sizeof(I32) + len + 1, char);
+ New(54, k, HEK_BASESIZE + len + 1, char);
hek = (HEK*)k;
- Copy(str, HK_KEY(hek), len, char);
- (HK_KEY(hek))[len] = '\0';
- HK_LEN(hek) = len;
- HK_HASH(hek) = hash;
+ Copy(str, HEK_KEY(hek), len, char);
+ *(HEK_KEY(hek) + len) = '\0';
+ HEK_LEN(hek) = len;
+ HEK_HASH(hek) = hash;
return hek;
}
unshare_hek(hek)
HEK *hek;
{
- unsharepvn(HK_KEY(hek),HK_LEN(hek),HK_HASH(hek));
+ unsharepvn(HEK_KEY(hek),HEK_LEN(hek),HEK_HASH(hek));
}
/* (klen == HEf_SVKEY) is special for MAGICAL hv entries, meaning key slot
continue;
if (HeKLEN(entry) != klen)
continue;
- if (memcmp(HeKEY(entry),key,klen)) /* is this it? */
+ if (memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
return &HeVAL(entry);
}
if (HvNAME(hv) && strEQ(HvNAME(hv),ENV_HV_NAME)) {
char *gotenv;
- gotenv = my_getenv(key);
- if (gotenv != NULL) {
+ if ((gotenv = ENV_getenv(key)) != Nullch) {
sv = newSVpv(gotenv,strlen(gotenv));
+ SvTAINTED_on(sv);
return hv_store(hv,key,klen,sv,hash);
}
}
return 0;
if (SvRMAGICAL(hv) && mg_find((SV*)hv,'P')) {
- HEK *hek;
- Newz(74, hek, 1, HEK);
+ static HE mh;
+
sv = sv_newmortal();
keysv = sv_2mortal(newSVsv(keysv));
mg_copy((SV*)hv, sv, (char*)keysv, HEf_SVKEY);
- entry = &He;
- HeVAL(entry) = sv;
- HeKEY_hk(entry) = hek;
- HeSVKEY_set(entry, keysv);
- HeKLEN(entry) = HEf_SVKEY; /* hent_key is holding an SV* */
- return entry;
+ if (!HeKEY_hek(&mh)) {
+ char *k;
+ New(54, k, HEK_BASESIZE + sizeof(SV*), char);
+ HeKEY_hek(&mh) = (HEK*)k;
+ }
+ HeSVKEY_set(&mh, keysv);
+ HeVAL(&mh) = sv;
+ return &mh;
}
xhv = (XPVHV*)SvANY(hv);
continue;
if (HeKLEN(entry) != klen)
continue;
- if (memcmp(HeKEY(entry),key,klen)) /* is this it? */
+ if (memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
return entry;
}
if (HvNAME(hv) && strEQ(HvNAME(hv),ENV_HV_NAME)) {
char *gotenv;
- gotenv = my_getenv(key);
- if (gotenv != NULL) {
+ if ((gotenv = ENV_getenv(key)) != Nullch) {
sv = newSVpv(gotenv,strlen(gotenv));
+ SvTAINTED_on(sv);
return hv_store_ent(hv,keysv,sv,hash);
}
}
xhv = (XPVHV*)SvANY(hv);
if (SvMAGICAL(hv)) {
mg_copy((SV*)hv, val, key, klen);
-#ifndef OVERLOAD
- if (!xhv->xhv_array)
- return 0;
-#else
- if (!xhv->xhv_array && (SvMAGIC(hv)->mg_type != 'A'
- || SvMAGIC(hv)->mg_moremagic))
- return 0;
+ if (!xhv->xhv_array
+ && (SvMAGIC(hv)->mg_moremagic
+ || (SvMAGIC(hv)->mg_type != 'E'
+#ifdef OVERLOAD
+ && SvMAGIC(hv)->mg_type != 'A'
#endif /* OVERLOAD */
+ )))
+ return 0;
}
if (!hash)
PERL_HASH(hash, key, klen);
continue;
if (HeKLEN(entry) != klen)
continue;
- if (memcmp(HeKEY(entry),key,klen)) /* is this it? */
+ if (memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
SvREFCNT_dec(HeVAL(entry));
HeVAL(entry) = val;
entry = new_he();
if (HvSHAREKEYS(hv))
- HeKEY_hk(entry) = share_hek(key, klen, hash);
+ HeKEY_hek(entry) = share_hek(key, klen, hash);
else /* gotta do the real thing */
- HeKEY_hk(entry) = save_hek(key, klen, hash);
+ HeKEY_hek(entry) = save_hek(key, klen, hash);
HeVAL(entry) = val;
HeNEXT(entry) = *oentry;
*oentry = entry;
xhv = (XPVHV*)SvANY(hv);
if (SvMAGICAL(hv)) {
+ bool save_taint = tainted;
+ if (tainting)
+ tainted = SvTAINTED(keysv);
keysv = sv_2mortal(newSVsv(keysv));
mg_copy((SV*)hv, val, (char*)keysv, HEf_SVKEY);
-#ifndef OVERLOAD
- if (!xhv->xhv_array)
- return Nullhe;
-#else
- if (!xhv->xhv_array && (SvMAGIC(hv)->mg_type != 'A'
- || SvMAGIC(hv)->mg_moremagic))
- return Nullhe;
+ TAINT_IF(save_taint);
+ if (!xhv->xhv_array
+ && (SvMAGIC(hv)->mg_moremagic
+ || (SvMAGIC(hv)->mg_type != 'E'
+#ifdef OVERLOAD
+ && SvMAGIC(hv)->mg_type != 'A'
#endif /* OVERLOAD */
+ )))
+ return Nullhe;
}
key = SvPV(keysv, klen);
continue;
if (HeKLEN(entry) != klen)
continue;
- if (memcmp(HeKEY(entry),key,klen)) /* is this it? */
+ if (memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
SvREFCNT_dec(HeVAL(entry));
HeVAL(entry) = val;
entry = new_he();
if (HvSHAREKEYS(hv))
- HeKEY_hk(entry) = share_hek(key, klen, hash);
+ HeKEY_hek(entry) = share_hek(key, klen, hash);
else /* gotta do the real thing */
- HeKEY_hk(entry) = save_hek(key, klen, hash);
+ HeKEY_hek(entry) = save_hek(key, klen, hash);
HeVAL(entry) = val;
HeNEXT(entry) = *oentry;
*oentry = entry;
continue;
if (HeKLEN(entry) != klen)
continue;
- if (memcmp(HeKEY(entry),key,klen)) /* is this it? */
+ if (memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
*oentry = HeNEXT(entry);
if (i && !*oentry)
if (entry == xhv->xhv_eiter)
HvLAZYDEL_on(hv);
else
- he_free(entry, HvSHAREKEYS(hv));
+ hv_free_ent(hv, entry);
--xhv->xhv_keys;
return sv;
}
continue;
if (HeKLEN(entry) != klen)
continue;
- if (memcmp(HeKEY(entry),key,klen)) /* is this it? */
+ if (memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
*oentry = HeNEXT(entry);
if (i && !*oentry)
if (entry == xhv->xhv_eiter)
HvLAZYDEL_on(hv);
else
- he_free(entry, HvSHAREKEYS(hv));
+ hv_free_ent(hv, entry);
--xhv->xhv_keys;
return sv;
}
continue;
if (HeKLEN(entry) != klen)
continue;
- if (memcmp(HeKEY(entry),key,klen)) /* is this it? */
+ if (memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
return TRUE;
}
continue;
if (HeKLEN(entry) != klen)
continue;
- if (memcmp(HeKEY(entry),key,klen)) /* is this it? */
+ if (memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
return TRUE;
}
}
void
-he_free(hent, shared)
-register HE *hent;
-I32 shared;
+hv_free_ent(hv, entry)
+HV *hv;
+register HE *entry;
{
- if (!hent)
+ if (!entry)
return;
- SvREFCNT_dec(HeVAL(hent));
- if (HeKLEN(hent) == HEf_SVKEY) {
- SvREFCNT_dec(HeKEY_sv(hent));
- Safefree(HeKEY_hk(hent));
- } else if (shared)
- unshare_hek(HeKEY_hk(hent));
+ if (isGV(HeVAL(entry)) && GvCVu(HeVAL(entry)) && HvNAME(hv))
+ sub_generation++; /* may be deletion of method from stash */
+ SvREFCNT_dec(HeVAL(entry));
+ if (HeKLEN(entry) == HEf_SVKEY) {
+ SvREFCNT_dec(HeKEY_sv(entry));
+ Safefree(HeKEY_hek(entry));
+ }
+ else if (HvSHAREKEYS(hv))
+ unshare_hek(HeKEY_hek(entry));
else
- Safefree(HeKEY_hk(hent));
- del_he(hent);
+ Safefree(HeKEY_hek(entry));
+ del_he(entry);
}
void
-he_delayfree(hent, shared)
-register HE *hent;
-I32 shared;
+hv_delayfree_ent(hv, entry)
+HV *hv;
+register HE *entry;
{
- if (!hent)
+ if (!entry)
return;
- sv_2mortal(HeVAL(hent)); /* free between statements */
- if (HeKLEN(hent) == HEf_SVKEY) {
- sv_2mortal(HeKEY_sv(hent));
- Safefree(HeKEY_hk(hent));
- } else if (shared)
- unshare_hek(HeKEY_hk(hent));
+ if (isGV(HeVAL(entry)) && GvCVu(HeVAL(entry)) && HvNAME(hv))
+ sub_generation++; /* may be deletion of method from stash */
+ sv_2mortal(HeVAL(entry)); /* free between statements */
+ if (HeKLEN(entry) == HEf_SVKEY) {
+ sv_2mortal(HeKEY_sv(entry));
+ Safefree(HeKEY_hek(entry));
+ }
+ else if (HvSHAREKEYS(hv))
+ unshare_hek(HeKEY_hek(entry));
else
- Safefree(HeKEY_hk(hent));
- del_he(hent);
+ Safefree(HeKEY_hek(entry));
+ del_he(entry);
}
void
HV *hv;
{
register HE **array;
- register HE *hent;
- register HE *ohent = Null(HE*);
+ register HE *entry;
+ register HE *oentry = Null(HE*);
I32 riter;
I32 max;
- I32 shared;
if (!hv)
return;
riter = 0;
max = HvMAX(hv);
array = HvARRAY(hv);
- hent = array[0];
- shared = HvSHAREKEYS(hv);
+ entry = array[0];
for (;;) {
- if (hent) {
- ohent = hent;
- hent = HeNEXT(hent);
- he_free(ohent, shared);
+ if (entry) {
+ oentry = entry;
+ entry = HeNEXT(entry);
+ hv_free_ent(hv, oentry);
}
- if (!hent) {
+ if (!entry) {
if (++riter > max)
break;
- hent = array[riter];
+ entry = array[riter];
}
}
(void)hv_iterinit(hv);
HvNAME(hv) = 0;
}
xhv->xhv_array = 0;
- xhv->xhv_max = 7; /* it's a normal associative array */
+ xhv->xhv_max = 7; /* it's a normal hash */
xhv->xhv_fill = 0;
xhv->xhv_keys = 0;
hv_iterinit(hv)
HV *hv;
{
- register XPVHV* xhv = (XPVHV*)SvANY(hv);
- HE *entry = xhv->xhv_eiter;
+ register XPVHV* xhv;
+ HE *entry;
+
+ if (!hv)
+ croak("Bad hash");
+ xhv = (XPVHV*)SvANY(hv);
+ entry = xhv->xhv_eiter;
#ifdef DYNAMIC_ENV_FETCH /* set up %ENV for iteration */
- if (HvNAME(hv) && strEQ(HvNAME(hv),ENV_HV_NAME)) prime_env_iter();
+ if (HvNAME(hv) && strEQ(HvNAME(hv), ENV_HV_NAME))
+ prime_env_iter();
#endif
if (entry && HvLAZYDEL(hv)) { /* was deleted earlier? */
HvLAZYDEL_off(hv);
- he_free(entry, HvSHAREKEYS(hv));
+ hv_free_ent(hv, entry);
}
xhv->xhv_riter = -1;
xhv->xhv_eiter = Null(HE*);
MAGIC* mg;
if (!hv)
- croak("Bad associative array");
+ croak("Bad hash");
xhv = (XPVHV*)SvANY(hv);
oldentry = entry = xhv->xhv_eiter;
SvREFCNT_dec(HeSVKEY(entry)); /* get rid of previous key */
}
else {
+ char *k;
HEK *hek;
- xhv->xhv_eiter = entry = new_he(); /* only one HE per MAGICAL hash */
+
+ xhv->xhv_eiter = entry = new_he(); /* one HE per MAGICAL hash */
Zero(entry, 1, HE);
- Newz(74, hek, 1, HEK);
- HeKEY_hk(entry) = hek;
+ Newz(54, k, HEK_BASESIZE + sizeof(SV*), char);
+ hek = (HEK*)k;
+ HeKEY_hek(entry) = hek;
HeKLEN(entry) = HEf_SVKEY;
}
magic_nextpack((SV*) hv,mg,key);
}
if (HeVAL(entry))
SvREFCNT_dec(HeVAL(entry));
- Safefree(HeKEY_hk(entry));
+ Safefree(HeKEY_hek(entry));
del_he(entry);
xhv->xhv_eiter = Null(HE*);
return Null(HE*);
if (oldentry && HvLAZYDEL(hv)) { /* was deleted earlier? */
HvLAZYDEL_off(hv);
- he_free(oldentry, HvSHAREKEYS(hv));
+ hv_free_ent(hv, oldentry);
}
xhv->xhv_eiter = entry;
I32 len;
U32 hash;
{
- return share_hek(sv, len, hash)->hk_key;
+ return HEK_KEY(share_hek(sv, len, hash));
}
/* possibly free a shared string if no one has access to it
continue;
if (HeKLEN(entry) != len)
continue;
- if (memcmp(HeKEY(entry),str,len)) /* is this it? */
+ if (memNE(HeKEY(entry),str,len)) /* is this it? */
continue;
found = 1;
if (--HeVAL(entry) == Nullsv) {
*oentry = HeNEXT(entry);
if (i && !*oentry)
xhv->xhv_fill--;
- Safefree(HeKEY_hk(entry));
+ Safefree(HeKEY_hek(entry));
del_he(entry);
--xhv->xhv_keys;
}
continue;
if (HeKLEN(entry) != len)
continue;
- if (memcmp(HeKEY(entry),str,len)) /* is this it? */
+ if (memNE(HeKEY(entry),str,len)) /* is this it? */
continue;
found = 1;
break;
}
if (!found) {
entry = new_he();
- HeKEY_hk(entry) = save_hek(str, len, hash);
+ HeKEY_hek(entry) = save_hek(str, len, hash);
HeVAL(entry) = Nullsv;
HeNEXT(entry) = *oentry;
*oentry = entry;
}
++HeVAL(entry); /* use value slot as REFCNT */
- return HeKEY_hk(entry);
+ return HeKEY_hek(entry);
}
projects / p5sagit/p5-mst-13.2.git / blobdiff