added useful macros;

include/sntl/sntllv2.h

@@ -182,6 +182,8 @@ typedef struct __connections_subsys_type {
 #define connections_set_channelcall(c, f)  (c)->set_typed_list_callback = (f)
 #define connections_set_ondestroy(c, f)  (c)->on_destroy = (f)
 #define connections_set_onpulse(c, f)  (c)->on_pulse = (f)
+#define connections_set_priv(c, p)  (c)->priv = (p)
+#define connections_get_priv(c)  (c)->priv
 
 typedef struct __rpc_typed_list_type {
   int type_id;