WinError6 句柄无效 Python 3+ 多处理

Question

我正在运行一个Python 3.7 Flask应用程序，该应用程序使用flask_socketio为浏览器客户端设置socketio服务器，另一个python进程连接到单独的远程socketio服务器并交换消息，另一个python进程从PIR传感器读取输入。

两个python进程都通过multiprocessing.Queue进行通信 - 但是，socketio进程总是[WinError6] - Invalid Handle或[WinError5] - Permission Denied。我完全不知道我做错了什么。

这是顶级(服务器(代码;它似乎没有问题：

from shotsocket import init as shotsocket_init
from shotsocket import util as matchmaking_util
import multiprocessing, os, config, uuid
match_queue = multiprocessing.Queue()
shot_queue = multiprocessing.Queue()
app = Flask(__name__, static_url_path='', static_folder='templates')
socketio = SocketIO(app)
_rooms = [] # I don't plan to keep this in memory, just doing it for debug / dev 
...

以上工作正常且花花公子。以下块中的倒数第二行是问题所在。

# THIS IS THE FUNC WHERE WE ARE TRYING TO USE 
# THE BROKEN QUEUE
@socketio.on('connect')
def listen():
    room_key = str(uuid.uuid4())
    join_room(room_key)
    _rooms.append((room_key, request.sid))
    possible_match = matchmaking_util.match_pending_clients(_rooms)
    if possible_match:
        shot_queue.put_nowait(possible_match)
        print('put it in there')

以下是我如何开始这些过程：

if __name__ == '__main__':
    debug = os.environ.get('MOONSHOT_DEBUG', False)
    try:
        proc = multiprocessing.Process(target=start, args=(debug,match_queue))
        proc.start()
        shot_proc = multiprocessing.Process(target=shotsocket_init, args=(shot_queue,))
        shot_proc.start()
        socketio.run(app, host='0.0.0.0')
    except KeyboardInterrupt:
        socketio.stop()
        proc.join()
        shot_proc.join()

这是整个shotsocket(无法读取队列的代码(

import socketio, multiprocessing # mp for the type
sio = socketio.Client(engineio_logger=True)
sio.connect('redacted woot', transports=['websocket'])

@sio.on('connect')
def connect():
    print("connected to shot server")
def init(queue: multiprocessing.Queue):
    while True:
        try:
            # WE NEVER GET PAST THIS LINE
            print(queue.get())
        except Exception as e:
            continue
        if not queue.empty():
            print('queue empty')
            shot = queue.get()
            print(shot)         
            match_id, opponents = shot
            sio.emit('start', {'id': match_id, 'opponents': [opponents[0], opponents[1]]})

我把头发。我到底做错了什么？

Answer 1

解决方案

我不知道为什么这可以解决问题，但是从multiprocessing.Queue切换到queue.Queue，multiprocessing.Process切换到threading.Thread做到了。