diff --git a/src/connection_pool.c b/src/connection_pool.c
index 18d37ef..779939c 100644
--- a/src/connection_pool.c
+++ b/src/connection_pool.c
@@ -786,6 +786,7 @@ int conn_pool_global_init_for_rdma()
     LOAD_API(G_RDMA_CONNECTION_CALLBACKS, close_connection);
     LOAD_API(G_RDMA_CONNECTION_CALLBACKS, destroy_connection);
     LOAD_API(G_RDMA_CONNECTION_CALLBACKS, is_connected);
+    LOAD_API(G_RDMA_CONNECTION_CALLBACKS, send_done);
     LOAD_API(G_RDMA_CONNECTION_CALLBACKS, get_recv_buffer);
     LOAD_API(G_RDMA_CONNECTION_CALLBACKS, request_by_buf1);
     LOAD_API(G_RDMA_CONNECTION_CALLBACKS, request_by_buf2);
@@ -793,6 +794,7 @@ int conn_pool_global_init_for_rdma()
     LOAD_API(G_RDMA_CONNECTION_CALLBACKS, request_by_mix);
     LOAD_API(G_RDMA_CONNECTION_CALLBACKS, send_by_buf1);
     LOAD_API(G_RDMA_CONNECTION_CALLBACKS, recv_data);
+    LOAD_API(G_RDMA_CONNECTION_CALLBACKS, post_recv);
 
     g_connection_callbacks.inited = true;
     return 0;
diff --git a/src/connection_pool.h b/src/connection_pool.h
index 1cb372b..08af0d3 100644
--- a/src/connection_pool.h
+++ b/src/connection_pool.h
@@ -69,6 +69,7 @@ typedef int (*fc_make_connection_callback)(ConnectionInfo *conn,
         const char *service_name, const int timeout_ms,
         const char *bind_ipaddr, const bool log_connect_error);
 typedef bool (*fc_is_connected_callback)(ConnectionInfo *conn);
+typedef bool (*fc_send_done_callback)(ConnectionInfo *conn);
 typedef void (*fc_close_connection_callback)(ConnectionInfo *conn);
 typedef void (*fc_destroy_connection_callback)(ConnectionInfo *conn);
 
@@ -87,7 +88,8 @@ typedef int (*fc_rdma_request_by_mix_callback)(ConnectionInfo *conn,
 typedef int (*fc_rdma_send_by_buf1_callback)(ConnectionInfo *conn,
         const char *data, const int length);
 typedef int (*fc_rdma_recv_data_callback)(ConnectionInfo *conn,
-        const int timeout_ms);
+        const bool call_post_recv, const int timeout_ms);
+typedef int (*fc_rdma_post_recv_callback)(ConnectionInfo *conn);
 
 typedef struct {
     fc_make_connection_callback make_connection;
@@ -104,6 +106,7 @@ typedef struct {
     fc_close_connection_callback close_connection;
     fc_destroy_connection_callback destroy_connection;
     fc_is_connected_callback is_connected;
+    fc_send_done_callback send_done;
 
     fc_rdma_get_recv_buffer_callback get_recv_buffer;
     fc_rdma_request_by_buf1_callback request_by_buf1;
@@ -113,6 +116,7 @@ typedef struct {
 
     fc_rdma_send_by_buf1_callback send_by_buf1;
     fc_rdma_recv_data_callback recv_data;
+    fc_rdma_post_recv_callback post_recv;
 } RDMAConnectionCallbacks;
 
 typedef struct {