Is there a way to use asyncio.Queue in multiple threads?

Question

Let\'s assume I have the following code:

import asyncio
import threading

queue = asyncio.Queue()

def threaded():
    import time
    while True:
        ti         


        

Answer 1

What about just using threading.Lock with asyncio.Queue?

class ThreadSafeAsyncFuture(asyncio.Future):
    """ asyncio.Future is not thread-safe
    https://stackoverflow.com/questions/33000200/asyncio-wait-for-event-from-other-thread
    """
    def set_result(self, result):
        func = super().set_result
        call = lambda: func(result)
        self._loop.call_soon_threadsafe(call)  # Warning: self._loop is undocumented


class ThreadSafeAsyncQueue(queue.Queue):
    """ asyncio.Queue is not thread-safe, threading.Queue is not awaitable
    works only with one putter to unlimited-size queue and with several getters
    TODO: add maxsize limits
    TODO: make put corouitine
    """
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.lock = threading.Lock()
        self.loop = asyncio.get_event_loop()
        self.waiters = []

    def put(self, item):
        with self.lock:
            if self.waiters:
                self.waiters.pop(0).set_result(item)
            else:
                super().put(item)

    async def get(self):
        with self.lock:
            if not self.empty():
                return super().get()
            else:
                fut = ThreadSafeAsyncFuture()
                self.waiters.append(fut)
        result = await fut
        return result

See also - asyncio: Wait for event from other thread