session leak

[luoqisheng]

/// the delegate will take a strong reference to sessionDelegate
/// and the session will not be released except calling invalidate 
 session = Foundation.URLSession(configuration: .default, delegate: sessionDelegate, delegateQueue: queue)

so session leak every time when reseetEngine() called, e.g : socket reconnect, connect

[luoqisheng]

SocketManager's addEngine() method, recreate engine, but since the engine was the sessiondelegate which will not be released

[nuclearace]

It's not because of not invalidating the URLSession. It's because the config you use to include the session delegate is keeping it alive.

[luoqisheng]

i donot know which config you mean. but I found 2+ instances of engine,and it do should not happen. and I the engineDidClose() could be called without invaild the engine