change status names, execute engine connect on emitQueue

Source/SocketEngine.swift

@@ -198,7 +198,9 @@ public final class SocketEngine : NSObject, SocketEnginePollable, SocketEngineWe
             }
         }
         
-        doLongPoll(reqPolling)
+        dispatch_async(emitQueue) {
+            self.doLongPoll(reqPolling)
+        }
     }
 
     private func createURLs() -> (NSURL, NSURL) {
@@ -280,7 +282,8 @@ public final class SocketEngine : NSObject, SocketEnginePollable, SocketEngineWe
         DefaultSocketLogger.Logger.log("Engine is being closed.", type: logType)
         
         if closed {
-            return postSendClose(nil, nil, nil)
+            client?.engineDidClose(reason)
+            return
         }
         
         if websocket {

Source/SocketEnginePollable.swift

@@ -105,6 +105,7 @@ extension SocketEnginePollable {
             return
         }
         
+        
         DefaultSocketLogger.Logger.log("Doing polling request", type: "SocketEnginePolling")
         
         session?.dataTaskWithRequest(req, completionHandler: callback).resume()

Source/SocketIOClient.swift

@@ -131,8 +131,7 @@ public final class SocketIOClient : NSObject, SocketEngineClient, SocketParsable
         assert(timeoutAfter >= 0, "Invalid timeout: \(timeoutAfter)")
 
         guard status != .Connected else {
-            DefaultSocketLogger.Logger.log("Tried connecting on an already connected socket",
-                type: logType)
+            DefaultSocketLogger.Logger.log("Tried connecting on an already connected socket", type: logType)
             return
         }
 
@@ -149,8 +148,8 @@ public final class SocketIOClient : NSObject, SocketEngineClient, SocketParsable
         let time = dispatch_time(DISPATCH_TIME_NOW, Int64(timeoutAfter) * Int64(NSEC_PER_SEC))
 
         dispatch_after(time, handleQueue) {[weak self] in
-            if let this = self where this.status != .Connected && this.status != .Closed {
-                this.status = .Closed
+            if let this = self where this.status != .Connected && this.status != .Disconnected {
+                this.status = .Disconnected
                 this.engine?.disconnect("Connect timeout")
 
                 handler?()
@@ -187,11 +186,11 @@ public final class SocketIOClient : NSObject, SocketEngineClient, SocketParsable
     }
 
     func didDisconnect(reason: String) {
-        guard status != .Closed else { return }
+        guard status != .Disconnected else { return }
 
         DefaultSocketLogger.Logger.log("Disconnected: %@", type: logType, args: reason)
 
-        status = .Closed
+        status = .Disconnected
         reconnects = false
 
         // Make sure the engine is actually dead.
@@ -202,6 +201,8 @@ public final class SocketIOClient : NSObject, SocketEngineClient, SocketParsable
     /// Disconnects the socket. Only reconnect the same socket if you know what you're doing.
     /// Will turn off automatic reconnects.
     public func disconnect() {
+        assert(status != .NotConnected, "Tried closing a NotConnected client")
+        
         DefaultSocketLogger.Logger.log("Closing socket", type: logType)
 
         reconnects = false
@@ -267,11 +268,11 @@ public final class SocketIOClient : NSObject, SocketEngineClient, SocketParsable
     public func engineDidClose(reason: String) {
         waitingPackets.removeAll()
         
-        if status != .Closed {
+        if status != .Disconnected {
             status = .NotConnected
         }
 
-        if status == .Closed || !reconnects {
+        if status == .Disconnected || !reconnects {
             didDisconnect(reason)
         } else if !reconnecting {
             reconnecting = true

Source/SocketIOClientStatus.swift

@@ -24,19 +24,8 @@
 
 import Foundation
 
-@objc public enum SocketIOClientStatus : Int, CustomStringConvertible {
-    case NotConnected, Closed, Connecting, Connected
-
-    public var description: String {
-        switch self {
-        case NotConnected:
-            return "Not Connected"
-        case Closed:
-            return "Closed"
-        case Connecting:
-            return "Connecting"
-        case Connected:
-            return "Connected"
-        }
-    }
+@objc public enum SocketIOClientStatus : Int {
+    // NotConnected: initial state
+    // Disconnected: connected before
+    case NotConnected, Disconnected, Connecting, Connected
 }