[TCLCORE] tcl + libevent notifier

[Roman P. <pu...@x-...>]

Hi together,

I have finally hacked together a notifier based on libevent 2.x to 
overcome the limitations with the current notifier, namely:
- limitations on 1024 sockets
- bottleneck due to jumbo select
- avoid notifier thread (this implementation is now single-threaded)

The code is a two and a half hours prototype (300 lines only), currently 
implemented in c++ and linux/unix only. Right now, sockets and timer 
work (more or less).

I'd need some interested parties to review, and probably explain, namely:
- why does tcl insist of calling deleteFileHandlerProc on non-registered 
files?
- review wether or not my understanding on the different callbacks is right
- obvious errors in the implementation
- coding style
- anything else you may wish to add
- why does "set t [thread::create]; thread::send <threadid> pwd " lock 
up (yet)?

who is willing to spend some brain-cycles on a short review?

Please email, and I'll provide code...

Thanks and cheers,
   Roman