added function cache_find_entry_ndn2id that avoids an unnecessary call to...

added function cache_find_entry_ndn2id that avoids an unnecessary call to dn_normalize; now dn2id calls this function, while the original function has been left as a wrapper

servers/slapd/back-ldbm/cache.c

@@ -542,14 +542,33 @@ cache_find_entry_dn2id(
     Cache	*cache,
     const char		*dn
 )
+{
+	char 			*ndn;
+	ID			id;
+
+	ndn = ch_strdup( dn );
+	(void) dn_normalize( ndn );
+
+	id = cache_find_entry_ndn2id( be, cache, ndn );
+
+	free( ndn );
+
+	return ( id );
+}
+
+ID
+cache_find_entry_ndn2id(
+	Backend		*be,
+    Cache	*cache,
+    const char		*ndn
+)
 {
 	Entry		e, *ep;
 	ID			id;
 	int count = 0;
 
-	e.e_dn = (char *) dn;
-	e.e_ndn = ch_strdup( dn );
-	(void) dn_normalize( e.e_ndn );
+	/* this function is always called with normalized DN */
+	e.e_ndn = (char *)ndn;
 
 try_again:
 	/* set cache mutex */
@@ -589,7 +608,7 @@ try_again:
 #else
 			Debug(LDAP_DEBUG_TRACE,
 				"====> cache_find_entry_dn2id(\"%s\"): %ld (not ready) %d\n",
-				dn, id, state);
+				ndn, id, state);
 #endif
 
 
@@ -611,7 +630,7 @@ try_again:
 #else
 		Debug(LDAP_DEBUG_TRACE,
 			"====> cache_find_entry_dn2id(\"%s\"): %ld (%d tries)\n",
-			dn, id, count);
+			ndn, id, count);
 #endif
 
 
@@ -622,8 +641,6 @@ try_again:
 		id = NOID;
 	}
 
-	free(e.e_ndn);
-
 	return( id );
 }
 

servers/slapd/back-ldbm/dn2id.c

@@ -134,7 +134,7 @@ dn2id(
 	assert( idp );
 
 	/* first check the cache */
-	if ( (*idp = cache_find_entry_dn2id( be, &li->li_cache, dn )) != NOID ) {
+	if ( (*idp = cache_find_entry_ndn2id( be, &li->li_cache, dn )) != NOID ) {
 #ifdef NEW_LOGGING
 		LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
 			   "dn2id: (%s)%ld in cache.\n", dn, *idp ));

servers/slapd/back-ldbm/proto-back-ldbm.h

@@ -53,6 +53,7 @@ void cache_return_entry_rw LDAP_P(( Cache *cache, Entry *e, int rw ));
 #define cache_return_entry_w(c, e) cache_return_entry_rw((c), (e), 1)
 
 ID cache_find_entry_dn2id LDAP_P(( Backend *be, Cache *cache, const char *dn ));
+ID cache_find_entry_ndn2id LDAP_P(( Backend *be, Cache *cache, const char *ndn ));
 Entry * cache_find_entry_id LDAP_P(( Cache *cache, ID id, int rw ));
 int cache_delete_entry LDAP_P(( Cache *cache, Entry *e ));
 void cache_release_all LDAP_P(( Cache *cache ));