BlockDriverCompletionFunc *completion_cb,
void *opaque);
-int monitor_get_fd(Monitor *mon, const char *fdname);
+int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp);
int monitor_handle_fd_param(Monitor *mon, const char *fdname);
void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)