multiDemo.py

#!/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

def func_d(a):
    return a

# 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():
    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()

    i=10
    while(i>0):
        async_call(func_d,handle_result,i)
        i-=1

    _task_queue.join()