[Feature] Optimize rspamd_re_cache_type_from_string

diff --git a/src/libserver/re_cache.c b/src/libserver/re_cache.c
index c2e628206dd930e1e1cbccf50e25ca425b6044a1..db57c0db9681df8ccecc86e39e58e598c0baad18 100644 (file)
--- a/src/libserver/re_cache.c
+++ b/src/libserver/re_cache.c
@@ -1137,37 +1137,53 @@ rspamd_re_cache_type_to_string (enum rspamd_re_type type)
 enum rspamd_re_type
 rspamd_re_cache_type_from_string (const char *str)
 {
-       enum rspamd_re_type ret = RSPAMD_RE_MAX;
+       enum rspamd_re_type ret;
+       guint64 h;
+
+       /*
+        * To optimize this function, we apply hash to input string and
+        * pre-select it from the values
+        */
 
        if (str != NULL) {
-               if (strcmp (str, "header") == 0) {
+               h = XXH64 (str, strlen (str), 0xdeadbabe);
+
+               switch (h) {
+               case 0x298b9c8a58887d44LLU:
                        ret = RSPAMD_RE_HEADER;
-               }
-               else if (strcmp (str, "rawheader") == 0) {
+                       break;
+               case 0x467bfb5cd7ddf890LLU:
                        ret = RSPAMD_RE_RAWHEADER;
-               }
-               else if (strcmp (str, "mime") == 0) {
+                       break;
+               case 0xda081341fb600389LLU:
                        ret = RSPAMD_RE_MIME;
-               }
-               else if (strcmp (str, "rawmime") == 0) {
+                       break;
+               case 0xc35831e067a8221dLLU:
                        ret = RSPAMD_RE_RAWMIME;
-               }
-               else if (strcmp (str, "body") == 0) {
+                       break;
+               case 0xc625e13dbe636de2LLU:
                        ret = RSPAMD_RE_BODY;
-               }
-               else if (strcmp (str, "url") == 0) {
+                       break;
+               case 0x286edbe164c791d2LLU:
                        ret = RSPAMD_RE_URL;
-               }
-               else if (strcmp (str, "allheader") == 0) {
+                       break;
+               case 0x796d62205a8778c7LLU:
                        ret = RSPAMD_RE_ALLHEADER;
-               }
-               else if (strcmp (str, "mimeheader") == 0) {
+                       break;
+               case 0xa3c6c153b3b00a5eLLU:
                        ret = RSPAMD_RE_MIMEHEADER;
-               }
-               else if (strcmp (str, "sabody") == 0) {
+                       break;
+               case 0x7794501506e604e9LLU:
                        ret = RSPAMD_RE_SABODY;
+                       break;
+               default:
+                       ret = RSPAMD_RE_MAX;
+                       break;
                }
        }
+       else {
+               ret = RSPAMD_RE_MAX;
+       }
 
        return ret;
 }