return hv_fetch_flags (hv, key, klen, lval, flags);
}
-SV**
+STATIC SV**
S_hv_fetch_flags(pTHX_ HV *hv, const char *key, I32 klen, I32 lval, int flags)
{
register XPVHV* xhv;
}
#ifdef ENV_IS_CASELESS
else if (mg_find((SV*)hv, PERL_MAGIC_env)) {
- U32 i;
+ I32 i;
for (i = 0; i < klen; ++i)
if (isLOWER(key[i])) {
char *nkey = strupr(SvPVX(sv_2mortal(newSVpvn(key,klen))));
for (; entry; entry = HeNEXT(entry)) {
if (HeHASH(entry) != hash) /* strings can't be equal */
continue;
- if (HeKLEN(entry) != klen)
+ if (HeKLEN(entry) != (I32)klen)
continue;
if (HeKEY(entry) != key && memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
if (env) {
sv = newSVpvn(env,len);
SvTAINTED_on(sv);
- if (key != keysave)
+ if (flags & HVhek_FREEKEY)
Safefree(key);
return hv_store(hv,key,klen,sv,hash);
}
for (; entry; entry = HeNEXT(entry)) {
if (HeHASH(entry) != hash) /* strings can't be equal */
continue;
- if (HeKLEN(entry) != klen)
+ if (HeKLEN(entry) != (I32)klen)
continue;
if (HeKEY(entry) != key && memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
const char *keysave = key;
int flags = 0;
+ if (klen < 0) {
+ klen = -klen;
+ is_utf8 = TRUE;
+ }
+
if (is_utf8) {
STRLEN tmplen = klen;
/* Just casting the &klen to (STRLEN) won't work well
}
SV**
-S_hv_store_flags(pTHX_ HV *hv, const char *key, I32 klen, SV *val,
+Perl_hv_store_flags(pTHX_ HV *hv, const char *key, I32 klen, SV *val,
register U32 hash, int flags)
{
register XPVHV* xhv;
for (entry = *oentry; entry; i=0, entry = HeNEXT(entry)) {
if (HeHASH(entry) != hash) /* strings can't be equal */
continue;
- if (HeKLEN(entry) != klen)
+ if (HeKLEN(entry) != (I32)klen)
continue;
if (HeKEY(entry) != key && memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
xhv->xhv_placeholders--; /* yes, can store into placeholder slot */
else
SvREFCNT_dec(HeVAL(entry));
- HeVAL(entry) = val;
+ if (flags & HVhek_PLACEHOLD) {
+ /* We have been requested to insert a placeholder. Currently
+ only Storable is allowed to do this. */
+ xhv->xhv_placeholders++;
+ HeVAL(entry) = &PL_sv_undef;
+ } else
+ HeVAL(entry) = val;
if (HeKFLAGS(entry) != flags) {
/* We match if HVhek_UTF8 bit in our flags and hash key's match.
HeKEY_hek(entry) = share_hek_flags(key, klen, hash, flags);
else /* gotta do the real thing */
HeKEY_hek(entry) = save_hek_flags(key, klen, hash, flags);
- HeVAL(entry) = val;
+ if (flags & HVhek_PLACEHOLD) {
+ /* We have been requested to insert a placeholder. Currently
+ only Storable is allowed to do this. */
+ xhv->xhv_placeholders++;
+ HeVAL(entry) = &PL_sv_undef;
+ } else
+ HeVAL(entry) = val;
HeNEXT(entry) = *oentry;
*oentry = entry;
xhv->xhv_keys++; /* HvKEYS(hv)++ */
if (i) { /* initial entry? */
xhv->xhv_fill++; /* HvFILL(hv)++ */
- if (xhv->xhv_keys > xhv->xhv_max /* HvKEYS(hv) > HvMAX(hv) */)
+ if (xhv->xhv_keys > (IV)xhv->xhv_max /* HvKEYS(hv) > HvMAX(hv) */)
hsplit(hv);
}
for (; entry; i=0, entry = HeNEXT(entry)) {
if (HeHASH(entry) != hash) /* strings can't be equal */
continue;
- if (HeKLEN(entry) != klen)
+ if (HeKLEN(entry) != (I32)klen)
continue;
if (HeKEY(entry) != key && memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
xhv->xhv_keys++; /* HvKEYS(hv)++ */
if (i) { /* initial entry? */
xhv->xhv_fill++; /* HvFILL(hv)++ */
- if (xhv->xhv_keys > xhv->xhv_max /* HvKEYS(hv) > HvMAX(hv) */)
+ if (xhv->xhv_keys > (IV)xhv->xhv_max /* HvKEYS(hv) > HvMAX(hv) */)
hsplit(hv);
}
for (; entry; i=0, oentry = &HeNEXT(entry), entry = *oentry) {
if (HeHASH(entry) != hash) /* strings can't be equal */
continue;
- if (HeKLEN(entry) != klen)
+ if (HeKLEN(entry) != (I32)klen)
continue;
if (HeKEY(entry) != key && memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
for (; entry; i=0, oentry = &HeNEXT(entry), entry = *oentry) {
if (HeHASH(entry) != hash) /* strings can't be equal */
continue;
- if (HeKLEN(entry) != klen)
+ if (HeKLEN(entry) != (I32)klen)
continue;
if (HeKEY(entry) != key && memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
sv = sv_newmortal();
mg_copy((SV*)hv, sv, key, klen);
magic_existspack(sv, mg_find(sv, PERL_MAGIC_tiedelem));
- return SvTRUE(sv);
+ return (bool)SvTRUE(sv);
}
#ifdef ENV_IS_CASELESS
else if (mg_find((SV*)hv, PERL_MAGIC_env)) {
keysv = sv_2mortal(newSVsv(keysv));
mg_copy((SV*)hv, sv, (char*)keysv, HEf_SVKEY);
magic_existspack(svret, mg_find(sv, PERL_MAGIC_tiedelem));
- return SvTRUE(svret);
+ return (bool)SvTRUE(svret);
}
#ifdef ENV_IS_CASELESS
else if (mg_find((SV*)hv, PERL_MAGIC_env)) {
for (; entry; entry = HeNEXT(entry)) {
if (HeHASH(entry) != hash) /* strings can't be equal */
continue;
- if (HeKLEN(entry) != klen)
+ if (HeKLEN(entry) != (I32)klen)
continue;
if (HeKEY(entry) != key && memNE(HeKEY(entry),key,klen)) /* is this it? */
continue;
continue;
bep = aep+oldsize;
for (oentry = aep, entry = *aep; entry; entry = *oentry) {
- if ((HeHASH(entry) & newsize) != i) {
+ if ((HeHASH(entry) & newsize) != (U32)i) {
*oentry = HeNEXT(entry);
HeNEXT(entry) = *bep;
if (!*bep)
if (!SvMAGICAL((SV *)ohv)) {
/* It's an ordinary hash, so copy it fast. AMS 20010804 */
- int i, shared = !!HvSHAREKEYS(ohv);
+ STRLEN i;
+ bool shared = !!HvSHAREKEYS(ohv);
HE **ents, **oents = (HE **)HvARRAY(ohv);
char *a;
New(0, a, PERL_HV_ARRAY_ALLOC_BYTES(hv_max+1), char);
HvMAX(hv) = hv_max;
hv_iterinit(ohv);
- while ((entry = hv_iternext(ohv))) {
+ while ((entry = hv_iternext_flags(ohv, 0))) {
hv_store_flags(hv, HeKEY(entry), HeKLEN(entry),
newSVsv(HeVAL(entry)), HeHASH(entry),
HeKFLAGS(entry));
hash buckets that happen to be in use. If you still need that esoteric
value, you can get it through the macro C<HvFILL(tb)>.
+
=cut
*/
/* used to be xhv->xhv_fill before 5.004_65 */
return XHvTOTALKEYS(xhv);
}
-
/*
=for apidoc hv_iternext
Returns entries from a hash iterator. See C<hv_iterinit>.
+You may call C<hv_delete> or C<hv_delete_ent> on the hash entry that the
+iterator currently points to, without losing your place or invalidating your
+iterator. Note that in this case the current entry is deleted from the hash
+with your iterator holding the last reference to it. Your iterator is flagged
+to free the entry on the next call to C<hv_iternext>, so you must not discard
+your iterator immediately else the entry will leak - call C<hv_iternext> to
+trigger the resource deallocation.
+
=cut
*/
HE *
Perl_hv_iternext(pTHX_ HV *hv)
{
+ return hv_iternext_flags(hv, 0);
+}
+
+/*
+=for apidoc hv_iternext_flags
+
+Returns entries from a hash iterator. See C<hv_iterinit> and C<hv_iternext>.
+The C<flags> value will normally be zero; if HV_ITERNEXT_WANTPLACEHOLDERS is
+set the placeholders keys (for restricted hashes) will be returned in addition
+to normal keys. By default placeholders are automatically skipped over.
+Currently a placeholder is implemented with a value that is literally
+<&Perl_sv_undef> (a regular C<undef> value is a normal read-write SV for which
+C<!SvOK> is false). Note that the implementation of placeholders and
+restricted hashes may change, and the implementation currently is
+insufficiently abstracted for any change to be tidy.
+
+=cut
+*/
+
+HE *
+Perl_hv_iternext_flags(pTHX_ HV *hv, I32 flags)
+{
register XPVHV* xhv;
register HE *entry;
HE *oldentry;
if (entry)
{
entry = HeNEXT(entry);
- /*
- * Skip past any placeholders -- don't want to include them in
- * any iteration.
- */
- while (entry && HeVAL(entry) == &PL_sv_undef) {
- entry = HeNEXT(entry);
+ if (!(flags & HV_ITERNEXT_WANTPLACEHOLDERS)) {
+ /*
+ * Skip past any placeholders -- don't want to include them in
+ * any iteration.
+ */
+ while (entry && HeVAL(entry) == &PL_sv_undef) {
+ entry = HeNEXT(entry);
+ }
}
}
while (!entry) {
xhv->xhv_riter++; /* HvRITER(hv)++ */
- if (xhv->xhv_riter > xhv->xhv_max /* HvRITER(hv) > HvMAX(hv) */) {
+ if (xhv->xhv_riter > (I32)xhv->xhv_max /* HvRITER(hv) > HvMAX(hv) */) {
xhv->xhv_riter = -1; /* HvRITER(hv) = -1 */
break;
}
/* entry = (HvARRAY(hv))[HvRITER(hv)]; */
entry = ((HE**)xhv->xhv_array)[xhv->xhv_riter];
- /* if we have an entry, but it's a placeholder, don't count it */
- if (entry && HeVAL(entry) == &PL_sv_undef)
- entry = 0;
-
+ if (!(flags & HV_ITERNEXT_WANTPLACEHOLDERS)) {
+ /* if we have an entry, but it's a placeholder, don't count it */
+ if (entry && HeVAL(entry) == &PL_sv_undef)
+ entry = 0;
+ }
}
if (oldentry && HvLAZYDEL(hv)) { /* was deleted earlier? */
Andreas would like keys he put in as utf8 to come back as utf8
*/
STRLEN utf8_len = HEK_LEN(hek);
- U8 *as_utf8 = bytes_to_utf8 (HEK_KEY(hek), &utf8_len);
+ U8 *as_utf8 = bytes_to_utf8 ((U8*)HEK_KEY(hek), &utf8_len);
- sv = newSVpvn (as_utf8, utf8_len);
+ sv = newSVpvn ((char*)as_utf8, utf8_len);
SvUTF8_on (sv);
+ Safefree (as_utf8); /* bytes_to_utf8() allocates a new string */
} else {
sv = newSVpvn_share(HEK_KEY(hek),
(HEK_UTF8(hek) ? -HEK_LEN(hek) : HEK_LEN(hek)),
Perl_hv_iternextsv(pTHX_ HV *hv, char **key, I32 *retlen)
{
HE *he;
- if ( (he = hv_iternext(hv)) == NULL)
+ if ( (he = hv_iternext_flags(hv, 0)) == NULL)
return NULL;
*key = hv_iterkey(he, retlen);
return hv_iterval(hv, he);
hek if non-NULL takes priority over the other 3, else str, len and hash
are used. If so, len and hash must both be valid for str.
*/
-void
+STATIC void
S_unshare_hek_or_pvn(pTHX_ HEK *hek, const char *str, I32 len, U32 hash)
{
register XPVHV* xhv;
return share_hek_flags (str, len, hash, flags);
}
-HEK *
+STATIC HEK *
S_share_hek_flags(pTHX_ const char *str, I32 len, register U32 hash, int flags)
{
register XPVHV* xhv;
xhv->xhv_keys++; /* HvKEYS(hv)++ */
if (i) { /* initial entry? */
xhv->xhv_fill++; /* HvFILL(hv)++ */
- if (xhv->xhv_keys > xhv->xhv_max /* HvKEYS(hv) > HvMAX(hv) */)
+ if (xhv->xhv_keys > (IV)xhv->xhv_max /* HvKEYS(hv) > HvMAX(hv) */)
hsplit(PL_strtab);
}
}
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