异步网络

• tornado.ioloop — Main event loop
  • IOLoop objects
    • Running an IOLoop
    • I/O events
    • Callbacks and timeouts
    • Debugging and error handling
    • Methods for subclasses
• tornado.iostream — Convenient wrappers for non-blocking sockets
  • Base class
    • Main interface
    • Methods for subclasses
  • Implementations
  • Exceptions
• tornado.netutil — Miscellaneous network utilities
• tornado.tcpclient — IOStream connection factory
• tornado.tcpserver — 基于 IOStream 的基础 TCP 服务