New API call Xorriso_peek_outlists()

xorriso/xorriso_private.h

@@ -587,6 +587,9 @@ struct XorrisO { /* the global context of xorriso */
  int (*msgw_info_handler)(void *handle, char *text);
  void *msgw_info_handle;
  int msgw_stack_handle;
+ int msgw_msg_pending; /* 0=no, 1=fetching(i.e. maybe) , 2=yes */
+ int msgw_fetch_lock_ini;
+ pthread_mutex_t msgw_fetch_lock;
 
  int status_history_max; /* for -status long_history */