Hash Function Change - Murmur hash and true per process hash seed

[perl.git] / sv.c

diff --git a/sv.c b/sv.c
index 7557790..b034f4e 100644 (file)
--- a/sv.c
+++ b/sv.c
@@ -4566,7 +4566,7 @@ Perl_sv_sethek(pTHX_ register SV *const sv, const HEK *const hek)
            sv_usepvn_flags(sv, as_utf8, utf8_len, SV_HAS_TRAILING_NUL);
            SvUTF8_on(sv);
             return;
-       } else if (flags & (HVhek_REHASH|HVhek_UNSHARED)) {
+        } else if (flags & HVhek_UNSHARED) {
            sv_setpvn(sv, HEK_KEY(hek), HEK_LEN(hek));
            if (HEK_UTF8(hek))
                SvUTF8_on(sv);
@@ -8457,13 +8457,8 @@ Perl_newSVhek(pTHX_ const HEK *const hek)
            sv_usepvn_flags(sv, as_utf8, utf8_len, SV_HAS_TRAILING_NUL);
            SvUTF8_on (sv);
            return sv;
-       } else if (flags & (HVhek_REHASH|HVhek_UNSHARED)) {
-           /* We don't have a pointer to the hv, so we have to replicate the
-              flag into every HEK. This hv is using custom a hasing
-              algorithm. Hence we can't return a shared string scalar, as
-              that would contain the (wrong) hash value, and might get passed
-              into an hv routine with a regular hash.
-              Similarly, a hash that isn't using shared hash keys has to have
+        } else if (flags & HVhek_UNSHARED) {
+            /* A hash that isn't using shared hash keys has to have
               the flag in every key so that we know not to try to call
               share_hek_hek on it.  */
 
@@ -12912,6 +12907,7 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags,
     PL_Proc            = ipP;
 #endif         /* PERL_IMPLICIT_SYS */
 
+
     param->flags = flags;
     /* Nothing in the core code uses this, but we make it available to
        extensions (using mg_dup).  */
@@ -12921,6 +12917,7 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags,
     param->new_perl = my_perl;
     param->unreferenced = NULL;
 
+
     INIT_TRACK_MEMPOOL(my_perl->Imemory_debug_header, my_perl);
 
     PL_body_arenas = NULL;
@@ -12933,9 +12930,6 @@ perl_clone_using(PerlInterpreter *proto_perl, UV flags,
 
     PL_debug           = proto_perl->Idebug;
 
-    PL_hash_seed       = proto_perl->Ihash_seed;
-    PL_rehash_seed     = proto_perl->Irehash_seed;
-
     /* dbargs array probably holds garbage */
     PL_dbargs          = NULL;