From 220646505f3b9d7a22749f7491ecc6c15bfec4f3 Mon Sep 17 00:00:00 2001
From: Arnaud Giersch <arnaud.giersch@free.fr>
Date: Mon, 2 Dec 2013 09:26:02 +0100
Subject: [PATCH] Try to terminate thread in a more graceful manner, and avoid
 deadlock (race?).

---
 CHANGES           | 4 ++++
 DrawingWindow.cpp | 7 +++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/CHANGES b/CHANGES
index 7177072..34651a2 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,7 @@
+-- lun. 02 déc. 2013 09:26:02 +0100
+
+        * Correction d'un problème de blocage à la fin de l'exécution.
+
 -- dim. 10 nov. 2013 18:26:00 +0100
 
         * Contournement d'un bug avec certaines versions de Qt,
diff --git a/DrawingWindow.cpp b/DrawingWindow.cpp
index 7015d6a..d1ef81b 100644
--- a/DrawingWindow.cpp
+++ b/DrawingWindow.cpp
@@ -751,7 +751,7 @@ void DrawingWindow::usleep(unsigned long usecs)
 void DrawingWindow::closeEvent(QCloseEvent *ev)
 {
     timer.stop();
-    thread->terminate();
+    thread->exit();
     syncMutex.lock();
     mouseMutex.lock();
     terminateThread = true;     // this flag is needed for the case
@@ -765,7 +765,10 @@ void DrawingWindow::closeEvent(QCloseEvent *ev)
     mouseMutex.unlock();
     syncMutex.unlock();
     QWidget::closeEvent(ev);
-    thread->wait();
+    if (!thread->wait(250)) {
+        thread->terminate();
+        thread->wait();
+    }
 }
 
 /*!
-- 
2.20.1