Updated shutdown handlers to call ProcessQueue before submit session end

Submitting any existing events is more important than blocking to send a
single session end.

Author: niemyjski

Source/Platforms/Console/ExceptionlessExtensions.cs

@@ -26,16 +26,17 @@ public static void Register(this ExceptionlessClient client) {
         public static void Unregister(this ExceptionlessClient client) {
             client.Shutdown();
             client.UnregisterOnProcessExitHandler();
+
+            client.ProcessQueue();
             if (client.Configuration.SessionsEnabled)
                 client.SubmitSessionEnd();
-            client.ProcessQueue();
         }
 
         private static void RegisterOnProcessExitHandler(this ExceptionlessClient client) {
             if (_onProcessExit == null) {
                 _onProcessExit = (sender, args) => {
-                    client.SubmitSessionEnd();
                     client.ProcessQueue();
+                    client.SubmitSessionEnd();
                 };
             }
 

Source/Platforms/Windows/ExceptionlessWindowsExtensions.cs

@@ -44,10 +44,10 @@ public static void Unregister(this ExceptionlessClient client) {
             client.UnregisterOnProcessExitHandler();
 
             client.SubmittingEvent -= OnSubmittingEvent;
-            
+
+            client.ProcessQueue();
             if (client.Configuration.SessionsEnabled)
                 client.SubmitSessionEnd();
-            client.ProcessQueue();
         }
 
         private static void OnSubmittingEvent(object sender, EventSubmittingEventArgs e) {
@@ -63,10 +63,10 @@ private static void OnSubmittingEvent(object sender, EventSubmittingEventArgs e)
         private static void RegisterOnProcessExitHandler(this ExceptionlessClient client) {
             if (_onProcessExit == null) {
                 _onProcessExit = (sender, args) => {
+                    client.ProcessQueue();
+
                     if (client.Configuration.SessionsEnabled)
                         client.SubmitSessionEnd();
-
-                    client.ProcessQueue();
                 };
             }
 

Source/Platforms/Wpf/ExceptionlessWpfExtensions.cs

@@ -47,9 +47,9 @@ public static void Unregister(this ExceptionlessClient client) {
             client.UnregisterOnProcessExitHandler();
 
             client.SubmittingEvent -= OnSubmittingEvent;
-            
-            client.SubmitSessionEnd();
+
             client.ProcessQueue();
+            client.SubmitSessionEnd();
         }
 
         private static void OnSubmittingEvent(object sender, EventSubmittingEventArgs e) {
@@ -72,10 +72,10 @@ private static bool ShowDialog(EventSubmittingEventArgs e) {
         private static void RegisterOnProcessExitHandler(this ExceptionlessClient client) {
             if (_onProcessExit == null) {
                 _onProcessExit = (sender, args) => {
+                    client.ProcessQueue();
+
                     if (client.Configuration.SessionsEnabled)
                         client.SubmitSessionEnd();
-
-                    client.ProcessQueue();
                 };
             }