Tornado 2.1.1 新特性¶

Oct 4, 2011¶

Fixed handling of closed connections with the epoll (i.e. Linux)IOLoop. Previously, closed connections could be shut down too early,which most often manifested as “Stream is closed” exceptions inSimpleAsyncHTTPClient.
Fixed a case in which chunked responses could be closed prematurely,leading to truncated output.
IOStream.connect now reports errors more consistently via loggingand the close callback (this affects e.g. connections to localhoston FreeBSD).
IOStream.read_bytes again accepts both int and long arguments.
PeriodicCallback no longer runs repeatedly when IOLoop iterationscomplete faster than the resolution of time.time() (mainly a problemon Windows).

Listening for IOLoop.ERROR alone is no longer sufficient for detectingclosed connections on an otherwise unused socket. IOLoop.ERROR mustalways be used in combination with READ or WRITE.

原文:

https://tornado-zh-cn.readthedocs.io/zh_CN/latest/releases/v2.1.1.html