From ff555d6f851ddcc9815d34e294f7dbf44180ac90 Mon Sep 17 00:00:00 2001
From: Laurent Gomila <laurent.gom@gmail.com>
Date: Mon, 4 Nov 2013 07:37:50 +0100
Subject: [PATCH] Optimized Window::waitEvent a bit (no sleep if events are
 available at first try)

---
 src/SFML/Window/WindowImpl.cpp | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/src/SFML/Window/WindowImpl.cpp b/src/SFML/Window/WindowImpl.cpp
index 50f55dabf..5c1dd3591 100644
--- a/src/SFML/Window/WindowImpl.cpp
+++ b/src/SFML/Window/WindowImpl.cpp
@@ -99,24 +99,21 @@ bool WindowImpl::popEvent(Event& event, bool block)
     // If the event queue is empty, let's first check if new events are available from the OS
     if (m_events.empty())
     {
-        if (!block)
-        {
-            // Non-blocking mode: process events and continue
-            processJoystickEvents();
-            processEvents();
-        }
-        else
-        {
-            // Blocking mode: process events until one is triggered
+        // Get events from the system
+        processJoystickEvents();
+        processEvents();
 
+        // In blocking mode, we must process events until one is triggered
+        if (block)
+        {
             // Here we use a manual wait loop instead of the optimized
             // wait-event provided by the OS, so that we don't skip joystick
             // events (which require polling)
             while (m_events.empty())
             {
+                sleep(milliseconds(10));
                 processJoystickEvents();
                 processEvents();
-                sleep(milliseconds(10));
             }
         }
     }