diff --git a/HISTORY b/HISTORY
index 5017672..b0f2d31 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,6 +1,7 @@
 
 Version 1.61  2022-09-21
   * get_base_path_from_conf_file_ex support parameter: noent_log_level
+  * add function common_blocked_queue_push_chain
 
 Version 1.60  2022-08-27
   * normalize_path for base_path
diff --git a/src/common_blocked_queue.c b/src/common_blocked_queue.c
index 85718b1..1abaaba 100644
--- a/src/common_blocked_queue.c
+++ b/src/common_blocked_queue.c
@@ -102,6 +102,29 @@ int common_blocked_queue_push_ex(struct common_blocked_queue *queue,
 	return 0;
 }
 
+void common_blocked_queue_push_chain_ex(struct common_blocked_queue *queue,
+        struct common_blocked_chain *chain, bool *notify)
+{
+    if (chain->head == NULL)
+    {
+        return;
+    }
+
+    pthread_mutex_lock(&(queue->lc_pair.lock));
+    if (queue->head == NULL)
+    {
+        queue->head = chain->head;
+        *notify = true;
+    }
+    else
+    {
+        queue->tail->next = chain->head;
+        *notify = false;
+    }
+    queue->tail = chain->tail;
+    pthread_mutex_unlock(&(queue->lc_pair.lock));
+}
+
 void common_blocked_queue_return_nodes(struct common_blocked_queue *queue,
         struct common_blocked_node *node)
 {
diff --git a/src/common_blocked_queue.h b/src/common_blocked_queue.h
index 1a0a18b..57fa630 100644
--- a/src/common_blocked_queue.h
+++ b/src/common_blocked_queue.h
@@ -31,6 +31,12 @@ struct common_blocked_node
     struct common_blocked_node *next;
 };
 
+struct common_blocked_chain
+{
+    struct common_blocked_node *head;
+    struct common_blocked_node *tail;
+};
+
 struct common_blocked_queue
 {
 	struct common_blocked_node *head;
@@ -88,6 +94,34 @@ static inline int common_blocked_queue_push(struct common_blocked_queue
     return result;
 }
 
+static inline struct common_blocked_node *common_blocked_queue_alloc_node(
+        struct common_blocked_queue *queue)
+{
+    return fast_mblock_alloc_object(&queue->mblock);
+}
+
+static inline void common_blocked_queue_free_node(
+        struct common_blocked_queue *queue,
+        struct common_blocked_node *node)
+{
+    fast_mblock_free_object(&queue->mblock, node);
+}
+
+void common_blocked_queue_push_chain_ex(struct common_blocked_queue *queue,
+        struct common_blocked_chain *chain, bool *notify);
+
+static inline void common_blocked_queue_push_chain(
+        struct common_blocked_queue *queue,
+        struct common_blocked_chain *chain)
+{
+    bool notify;
+
+    common_blocked_queue_push_chain_ex(queue, chain, &notify);
+    if (notify)
+    {
+        pthread_cond_signal(&(queue->lc_pair.cond));
+    }
+}
 
 void common_blocked_queue_return_nodes(struct common_blocked_queue *queue,
         struct common_blocked_node *node);