feat naver#487 - implement process_touch_command

alter expire time without fetch item

memcached.c

@@ -13089,20 +13089,56 @@ static void process_touch_command(conn *c, token_t *tokens, const size_t ntokens
 {
     assert(c != NULL);
     assert(c->ewouldblock == false);
-    char *key = tokens[KEY_TOKEN].value;
-    size_t nkey = tokens[KEY_TOKEN].length;
 
-    if (nkey > KEY_MAX_LENGTH) {
+    char *key = tokens[KEY_TOKEN].value; 
+    size_t nkey = tokens[KEY_TOKEN].length;  
+
+    ENGINE_ERROR_CODE ret = ENGINE_SUCCESS;
+    item_attr attr_data;
+    int64_t exptime=0;
+    ENGINE_ITEM_ATTR attr_ids[ATTR_END];
+    uint32_t attr_count = 0;
+
+    if ((! safe_strtoll(tokens[KEY_TOKEN+1].value, &exptime)))
+    {
+        print_invalid_command(c, tokens, ntokens);
         out_string(c, "CLIENT_ERROR bad command line format");
         return;
-    }    
+    }
+
+    attr_data.exptime = exptime;
+    attr_ids[attr_count++] = ATTR_EXPIRETIME;
+
+    if (ret == ENGINE_SUCCESS) {
+        ret = mc_engine.v1->setattr(mc_engine.v0, c, key, nkey,
+                                    attr_ids, attr_count, &attr_data, 0);
+        CONN_CHECK_AND_SET_EWOULDBLOCK(ret, c);
+        if (settings.detail_enabled) {
+            stats_prefix_record_setattr(key, nkey);
+        }
+    }
+
+    switch (ret) {
+    case ENGINE_SUCCESS:
+        STATS_HITS(c, setattr, key, nkey);
+        out_string(c, "OK");
+        break;
+    case ENGINE_KEY_ENOENT:
+        STATS_MISSES(c, setattr, key, nkey);
+        out_string(c, "NOT_FOUND");
+        break;
+    default:
+        STATS_CMD_NOKEY(c, setattr);
+        if (ret == ENGINE_EBADATTR)       out_string(c, "ATTR_ERROR not found");
+        else if (ret == ENGINE_EBADVALUE) out_string(c, "ATTR_ERROR bad value");
+        else handle_unexpected_errorcode_ascii(c, __func__, ret);
+    }
 
-    out_string(c, "hi touch!!")
 }
 
 static void process_command_ascii(conn *c, char *command, int cmdlen)
 {
-    /* One more token is reserved in tokens strucure
+    /* One more token is reserved in tokens structure
      * for keeping the length of untokenized command.
      */
     token_t tokens[MAX_TOKENS+1];
@@ -13221,7 +13257,7 @@ static void process_command_ascii(conn *c, char *command, int cmdlen)
     {
         process_config_command(c, tokens, ntokens);
     }
-    else if ((ntokens >= 0) && (strcmp(tokens[COMMAND_TOKEN].value, "touch") == 0))
+    else if ((ntokens == 4) && (strcmp(tokens[COMMAND_TOKEN].value, "touch") == 0))
     {
         process_touch_command(c, tokens, ntokens);
     }