- int (*user_blocking) (struct ltt_trace_struct *trace,
- unsigned int index, size_t data_size,
- struct user_dbg_data *dbg);
+//ust// int (*user_blocking) (struct ltt_trace_struct *trace,
+//ust// unsigned int index, size_t data_size,
+//ust// struct user_dbg_data *dbg);