shadowsocks-rust

Running

```bash

start ssserver

./run.sh s

start sslocal

./run.sh c ```

TODO

• [x] add cache for DNS
• [x] review unwrap, .ok()、unimplemented, unreachable
• [x] check if there exists cannot decrypt log
• [x] test with shadowsocks
• [x] remove unnecessary clone ~~(maybe this is the cause of high CPU problem)~~
• [x] find the reason of high CPU (5% ~ 20%)
• [ ] ~~fix high CPU caused by on_remote_read~~ (see issue #1)
• [ ] ~~response slow after fixed high CPU problem~~
• [ ] finish all TODO items in source (wait cargo to support required-feature, see pull 2056)
• [x] handle the timeout situation of client
• [x] handle DNS error properly (e.g. remove caller or call resolve again)
• [x] review tcp_processor
• [ ] ~~refactor error handle~~

Features need to finished

• [x] Running as daemon
• [x] UDP support
• [x] OTA encrypt method support
• [ ] Multiple encrypt methods support
• [ ] TCP fast open (wait a new computer)

Test sites

• http://www.bilibili.com/
• http://www.panda.tv/