improve std server in windows

Merge pull request #123 from Allenxuxu/fix-protocol

Fix default protocol

Add sendInLoopFinish callback (#97)

bugfix: fix(#85) (#88)

Co-authored-by: charlesxie <charlesxie@tencent.com>

Fix websocket close (#79)

* Fix #78 && add unit test

Test pull request (#75)

optimize performance (#71)

* fix unit test
* Improve eventloop performance
* update benchmarks

fix write return error EAGAIN (#61)

* fix unix.Write return EAGAIN

Merge pull request #54 from Allenxuxu/feat-ringbuf-len

add buffer length

update README