Socket打开时机

注意看下面的日志，登录之前我做了两件事：1 openClient 2 login,两件事都回调成功，我才认为是登录成功（这里没问题吧？），然后我在查询的时候，会遇到下面的问题，socket没有打开，我的问题是：

既然已经回调，那socket应该已经建立，为什么还出这个错误？

如果要等socket成功，那在哪里可以收到这个通知？

2015-10-24 00:31:30:395 [19893:607] error = {
NSLocalizedFailureReason = "websocket not opened";
reason = "websocket not opened";
}, Error Domain=AVOSCloudIMErrorDomain Code=5 "The operation couldn’t be completed. websocket not opened" UserInfo=0x7d664060 {reason=websocket not opened, NSLocalizedFailureReason=websocket not opened}
2015-10-24 00:31:30.501 [19893:888221] objects count = 9, Error: (null) (null)
2015-10-24 00:31:30.505 [19893:888221] objects count = 13, Error: (null) (null)
2015-10-24 00:31:44.050 [19893:888537] [INFO] -[AVIMWebSocketWrapper internalOpenWebSocketConnection:] Open websocket with url: wss://rtm56.avoscloud.com:6799/
2015-10-24 00:31:49.608 [19893:888221] [INFO] -[AVIMWebSocketWrapper webSocketDidOpen:] Websocket connection opened.