load_module call in vcl

[Izak Burger]

Hi all,

I've been studying the embedded C code used by the geoip plugin and 
noticed how dlopen is used to load this functionality by declaring a 
load_module procedure. What I cannot seem to figure out is where and how 
this is called (grep is not my friend tonight), so at present it seems 
almost like magic (or more likely, a level of indirection I'm missing). 
Can anyone enlighten me?

Also, is there an unload_module or similar partner procedure that one 
can define for cleanup purposes?

regards,
Izak