python 异步消息队列

参考: 

http://blog.chinaunix.net/uid-429659-id-3985612.html

https://docs.python.org/2/library/queue.html

 

注意:

queue模块是python3自带的模块, python2自带的是Queue

网上是就贴了一段代码, 其他的什么也没有, 看了之后, 心中一万只*草*泥*马奔过啊

 

参考代码

#!/usr/bin/env python
# -*- coding: UTF-8 -*-

 import logging
 import queue
 import threading

 def func_a(a, b):
    return a + b

 def func_b():
    pass

 def func_c(a, b, c):
    return a, b, c

# 异步任务队列
_task_queue = queue.Queue()

 def async_call(function, callback, *args, **kwargs):
    _task_queue.put({
        'function': function,
        'callback': callback,
        'args': args,
        'kwargs': kwargs
    })

 def _task_queue_consumer():
    """
    异步任务队列消费者
    """
    while True:
        try:
            task = _task_queue.get()
            function = task.get('function')
            callback = task.get('callback')
            args = task.get('args')
            kwargs = task.get('kwargs')
            try:
                if callback:
                    callback(function(*args, **kwargs))
            except Exception as ex:
                if callback:
                    callback(ex)
            finally:
                _task_queue.task_done()
        except Exception as ex:
            logging.warning(ex)

 def handle_result(result):
    print(type(result), result)

 if __name__ == '__main__':
    t = threading.Thread(target=_task_queue_consumer)
    t.daemon = True
    t.start()

    async_call(func_a, handle_result, 1, 2)
    async_call(func_b, handle_result)
    async_call(func_c, handle_result, 1, 2, 3)
    async_call(func_c, handle_result, 1, 2, 3, 4)

    _task_queue.join()