How could I know all ws connections were actually closed?

[pengweichu]

Below is my code, since the loop->defer is async, after I called removeAllClients, how can I determine all clients are actually closed? Thanks

    void removeAllClients()
    {
	std::unique_lock<std::mutex> lock(mMutex);
        for (auto & it : mClients)
        {
            auto ws = it.second;
			mLoop->defer([ws]()
				{
					ws->close();
				});
        }

        mClients.clear();
    }

[ghost]

You can read the docs; https://unetworking.github.io/uWebSockets.js/generated/interfaces/websocket.html#close

That code is very inefficient as you're making one defer per socket rather than one defer in total.