Fix style.

Ubiquitous/XiZi_AIoT/services/lib/ipc/libipc.h

@@ -76,7 +76,6 @@ typedef int (*IpcInterface)(struct IpcMsg* msg);
 struct IpcNode {
     char* name;
     IpcInterface interfaces[UINT8_MAX];
-    void (*cycle_handler)();
 } __attribute__((packed));
 
 #define IPC_SERVER_LOOP(ipc_node_name) rpc_server_loop_##rpc_node_name
@@ -243,6 +242,8 @@ bool is_cur_session_delayed(void);
     }
 
 int cur_session_id(void);
-bool server_set_cycle_handler(struct IpcNode* ipc_node, void (*handler)());
+/// @brief delay the session(message, or a inter-process-call)
+///         the delayed call will be handled again later from begining, not from the position where delay_session() is called.
+/// @param
 void delay_session(void);
 bool is_cur_handler_been_delayed();