Python 保持一个进程监听相互交流

我想同时启动两个进程。一个将立即开始处理，另一个将等待来自第一个进程的触发器（和参数），等待它开始处理

以下是我的代码：-

Main.py

packet_obj = packet(i,30,30,30,30,0)
d = multiprocessing.Process(target = workers.send_trigger_to_controller, args = (packet_obj))
d.start()

# another process should start listening. Something like whenever a trigger is send 
# from the first process, it should then start processing.

def send_trigger_to_controller(packet_obj):

    while condition:

        if condition:
            d = multiprocessing.Process(target = send_packet_to_controller, args = (sensor_id,high_low,trigger_type))
            d.start()

        elif condition:
            d = multiprocessing.Process(target = send_packet_to_controller, args = (sensor_id,high_low,trigger_type))
            d.start()

        elif condition:
            d = multiprocessing.Process(target = send_packet_to_controller, args = (sensor_id,high_low,trigger_type))
            d.start()

Workers.py

packet_obj = packet(i,30,30,30,30,0)
d = multiprocessing.Process(target = workers.send_trigger_to_controller, args = (packet_obj))
d.start()

# another process should start listening. Something like whenever a trigger is send 
# from the first process, it should then start processing.

def send_trigger_to_controller(packet_obj):

    while condition:

        if condition:
            d = multiprocessing.Process(target = send_packet_to_controller, args = (sensor_id,high_low,trigger_type))
            d.start()

        elif condition:
            d = multiprocessing.Process(target = send_packet_to_controller, args = (sensor_id,high_low,trigger_type))
            d.start()

        elif condition:
            d = multiprocessing.Process(target = send_packet_to_controller, args = (sensor_id,high_low,trigger_type))
            d.start()

从现在起，我将为满足的每个条件启动一个新流程。PS：所有这些条件都满足，但时间间隔不同，因此根据时间实例，传递不同的参数值

我想为所有这些创建一个单独的进程，它将监听所有这些。如果发送了任何触发器，则该进程应该先侦听然后处理，而不是创建一个完整的新进程

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我该怎么做？

启动两个进程并使用队列（）进行通信

使用multiprocessing.Process创建2个进程（一个生产者进程和一个消费者进程）。 生产者是立即开始处理的人，消费者是等待生产者进程准备就绪的人

生产者进程完成后将计算结果放入队列

消费者进程“侦听”队列，当有项目时，它开始处理

比如：

class ProducerProcess(Process):

    def __init__(self, q, **kwargs):
        Process.__init__(self,)
        self.q = q

    def run():
        res = do_stuff()
        q.put(res)

class ConsumerProcess(Process):

    def __init__(self, q, **kwargs):
        Process.__init__(self,)
        self.q = q

    def run():
        while True:
            args = q.get(block=True) # wait until there is an item in the queue
            do_stuff(*args) # do stuff here


q = Queue()
p1 = ProducerProcess(q, **your_args)
p2 =ConsumerProcess(q, **extra_args)
p2.start()
p1.start()
# join the processes p1.join() p2.join() or use JoinableQueue depending what you need

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听起来您想要

队列的功能。有一些方法可以在进程之间放置/获取值（在本例中是各种参数）。启动将队列传递到的单个进程，当满足各种条件时，将参数放入队列，而不是启动另一个进程。