File caching

[MarcSeebold]

It would be nice to cache often used files content to improve response time (in HttpFileServer::serveFile).

[vinipsmaker]

I don't think it's a good idea to implement this feature in HttpFileServer::serveFile static method, because it'd require a global variable that can cause problems to multithreaded programs or decrease the performance through the use of mutexes.

But it's indeed a good idea to implement this feature in HttpFileServer class. Another class where cache would be great to decrease latency of the response is HttpServerRequestRouter.

I documented this idea on roadmap wiki page and I'll use this issue to track the progress. Thanks for the feedback.

I'm participating of Google Summer of Code this year and unfortunately, I'm way behind of my proposed timeline, then I'm super late and this feature in Tufão will have to wait.