fix update window causing crash, misc tweaks

source/ngc/fileop.cpp

@@ -85,7 +85,7 @@ HaltDeviceThread()
  * This checks our devices for changes (SD/USB removed) and
  * initializes the network in the background
  ***************************************************************************/
-static int devsleep = 3*1000*1000;
+static int devsleep = 1*1000*1000;
 
 static void *
 devicecallback (void *arg)

source/ngc/menu.cpp

@@ -102,6 +102,11 @@ ResumeGui()
 static void
 HaltGui()
 {
+	#ifdef HW_RVL
+	if(updatethread != LWP_THREAD_NULL)
+		LWP_JoinThread(updatethread, NULL);
+	#endif
+
 	guiHalt = true;
 
 	// wait for thread to finish
@@ -227,7 +232,6 @@ WindowPrompt(const char *title, const char *msg, const char *btn1Label, const ch
 static void *
 EmulatorUpdate (void *arg)
 {
-	sleep(3);
 	bool installUpdate = WindowPrompt(
 		"Update Available",
 		"An update is available!",

source/ngc/networkop.cpp

@@ -183,9 +183,8 @@ void InitializeNetwork(bool silent)
 	while(inNetworkInit) // a network init is already in progress!
 		usleep(50);
 
-	if(networkInit) // check again if the network was inited
-		return;
-
+	if(!networkInit) // check again if the network was inited
+	{
 		inNetworkInit = true;
 
 		char ip[16];
@@ -209,6 +208,9 @@ void InitializeNetwork(bool silent)
 		}
 		inNetworkInit = false;
 	}
+	if(!silent)
+		CancelAction();
+}
 
 void CloseShare()
 {
@@ -277,6 +279,9 @@ ConnectShare (bool silent)
 			{
 				networkShareInit = true;
 			}
+
+			if(!silent)
+				CancelAction();
 		}
 
 		if(!networkShareInit && !silent)