协程和并发

• tornado.gen — Simplify asynchronous code
  • Decorators
  • Utility functions
  • Legacy interface
• tornado.concurrent — Work with threads and futures
  • Consumer methods
  • Producer methods
• tornado.locks – 同步原语
  • Condition
  • Event
  • Semaphore
  • BoundedSemaphore
  • Lock
• tornado.queues – 协程的队列
  • Classes
    • Queue
    • PriorityQueue
    • LifoQueue
  • Exceptions
    • QueueEmpty
    • QueueFull
• tornado.process — Utilities for multiple processes