[英]Elegant solution for IPC in python with multiprocessing
I have two independent processes on the same machine in need of IPC.我在需要 IPC 的同一台机器上有两个独立的进程。 As of now, I have this working solution:
截至目前,我有这个工作解决方案:
server.py服务器.py
#!/usr/bin/python3
from multiprocessing.managers import BaseManager
from multiprocessing import Process, Queue
def do_whatever():
print('function do whatever, triggered by xyz')
# do something
def start_queue_server(q):
class QueueManager(BaseManager): pass
QueueManager.register('get_queue', callable=lambda:q)
m = QueueManager(address=('', 55555), authkey=b'tuktuktuk')
s = m.get_server()
s.serve_forever()
def main():
queue = Queue()
proc = Process(target=start_queue_server, args=(queue,))
proc.start()
while True:
command = queue.get()
print('command from queue:', command)
if command == 'xyz':
do_whatever()
# many more if, elif, else statements
if __name__ == "__main__":
main()
client.py客户端.py
#!/usr/bin/python3
from multiprocessing.managers import BaseManager
def communicator(command):
class QueueManager(BaseManager): pass
QueueManager.register('get_queue')
m = QueueManager(address=('', 55555), authkey=b'tuktuktuk')
m.connect()
queue = m.get_queue()
queue.put(command)
def main():
command = ('xyz')
communicator(command)
if __name__ == "__main__":
main()
I read the python documentation but couldn't find more options for unrelated processes.我阅读了 python 文档,但找不到更多不相关进程的选项。 Inputs would be welcome!
欢迎提供意见! Cheers singultus
欢呼声
Finally, I settled for an additional Listener最后,我选择了一个额外的 Listener
server.py服务器.py
#!/usr/bin/python3
from multiprocessing.managers import BaseManager
from multiprocessing import Process, Queue
from multiprocessing.connection import Client
def do_whatever():
print('function do whatever, triggered by xyz')
# do something
def start_queue_server(q):
class QueueManager(BaseManager): pass
QueueManager.register('get_queue', callable=lambda:q)
m = QueueManager(address=('', 55555), authkey=b'tuktuktuk')
s = m.get_server()
s.serve_forever()
def talkback(msg, port):
conn = Client(address=('', port), authkey=b'tuktuktuk')
conn.send(msg)
conn.close()
def main():
queue = Queue()
proc = Process(target=start_queue_server, args=(queue,))
proc.start()
while True:
command = queue.get()
print('command from queue:', command)
if command[0] == 'xyz':
do_whatever()
talkback('aaa', command[1])
# many more if, elif, else statements
if __name__ == "__main__":
main()
client.py客户端.py
#!/usr/bin/python3
from multiprocessing.managers import BaseManager
from multiprocessing.connection import Listener
def communicator(command, talkback=False):
if talkback:
listener = Listener(address=('', 0), authkey=b'prusaprinter')
return_port = listener.address[1]
command = command + (return_port,)
class QueueManager(BaseManager): pass
QueueManager.register('get_queue')
m = QueueManager(address=('', 55555), authkey=b'tuktuktuk')
m.connect()
queue = m.get_queue()
queue.put(command)
if talkback:
conn = listener.accept()
server_return = conn.recv()
conn.close()
listener.close()
return server_return
def main():
command = ('xyz')
communicator(command, True)
if __name__ == "__main__":
main()
The client opens an available port and starts listening on it.客户端打开一个可用端口并开始监听它。 It then sends the command to the server together with the aforementioned port number.
然后它将命令连同上述端口号一起发送到服务器。 The server executes the command, then uses the port number to report back to the client.
服务器执行命令,然后使用端口号向客户端报告。 After receiving the answer, the client closes the port.
收到应答后,客户端关闭端口。
I have two independent processes on the same machine in need of IPC.我在需要 IPC 的同一台机器上有两个独立的进程。 As of now, I have this working solution:
截至目前,我有这个工作解决方案:
server.py服务器.py
#!/usr/bin/python3
from multiprocessing.managers import BaseManager
from multiprocessing import Process, Queue
def do_whatever():
print('function do whatever, triggered by xyz')
# do something
def start_queue_server(q):
class QueueManager(BaseManager): pass
QueueManager.register('get_queue', callable=lambda:q)
m = QueueManager(address=('', 55555), authkey=b'tuktuktuk')
s = m.get_server()
s.serve_forever()
def main():
queue = Queue()
proc = Process(target=start_queue_server, args=(queue,))
proc.start()
while True:
command = queue.get()
print('command from queue:', command)
if command == 'xyz':
do_whatever()
# many more if, elif, else statements
if __name__ == "__main__":
main()
client.py客户端.py
#!/usr/bin/python3
from multiprocessing.managers import BaseManager
def communicator(command):
class QueueManager(BaseManager): pass
QueueManager.register('get_queue')
m = QueueManager(address=('', 55555), authkey=b'tuktuktuk')
m.connect()
queue = m.get_queue()
queue.put(command)
def main():
command = ('xyz')
communicator(command)
if __name__ == "__main__":
main()
I read the python documentation but couldn't find more options for unrelated processes.我阅读了 python 文档,但找不到更多不相关进程的选项。 Inputs would be welcome!
欢迎输入! Cheers singultus
干杯singultus
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