Code from add_handle() :

    cur_handle = new_handle;
    rb->logf("cur_handle_id: %d", cur_handle_id);
    cur_handle->id = cur_handle_id++;
    rb->logf("cur_handle->id: %d", cur_handle->id);
    cur_handle->next = NULL;
    num_handles++;
    rb->logf("cur_handle: %lx", (unsigned long)cur_handle);
    rb->logf("cur_handle->id: %d", cur_handle->id);
    return cur_handle;

logf result (read from bottom to top) :

h->id: 184549376                                            
h: A6284D                                                   
cur_handle->id: 184549376                                   
cur_handle: A6284D                                          
cur_handle->id: 184549376                                   
cur_handle_id: 11                                           
add_handle                                                  
bufopen: /Ame - Rej (A Hundred Birds Remix).mp3 (offset: 0)