HTLoadToChunk will not do...

Friends

I wish to load the contents of more than one uri into memory.  For
loading one I use HTLoadToChunk and it works well.  But if I want more
than one, I have to do them serially.

I cannot use threads. Load each in a separate thread.  Sigh.  

Is there some equivalent to HTLoadToChunk that is non blocking? 

I was looking at tiny.c and it almost has an answer.  If I could
register a callback for when a chunk is loaded....

But I am new to this.  Where can I look?
-- 
                     Worik Macky Turei Stanton
                          worik@noggon.co.nz
                              Aotearoa
    This line would not have seven words if only it had eight words less.