Asynchronous Programming

Async programming is interesting.

poll, select are no good for lots of connections. select runs out of descriptors, and poll scales O(n) due to its structure. Something else is needed for many open files.

• epoll on Linux. Need to investigate.
• libev[1]
• libevent[2]
• liboop[3]

I want to do some serious async as part of pyli.