Fix QTimer overflow with interval > 35 minutes on symbian

For long intervals, restart the system timer every 2000 seconds
New autotest to verify long timers don't crash or complete immediately

Task-number: QT-651
Reviewed-by: axis

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/auto/qtimer/tst_qtimer.cpp b/tests/auto/qtimer/tst_qtimer.cpp
index a55c1c6..0877500 100644
--- a/tests/auto/qtimer/tst_qtimer.cpp
+++ b/tests/auto/qtimer/tst_qtimer.cpp
@@ -88,6 +88,7 @@ private slots:
     void timerFiresOnlyOncePerProcessEvents_data();
     void timerFiresOnlyOncePerProcessEvents();
     void timerIdPersistsAfterThreadExit();
+    void cancelLongTimer();
 };
 
 class TimerHelper : public QObject
@@ -602,5 +603,16 @@ void tst_QTimer::timerIdPersistsAfterThreadExit()
     QVERIFY((timerId & 0xffffff) != (thread.timerId & 0xffffff));
 }
 
+void tst_QTimer::cancelLongTimer()
+{
+    QTimer timer;
+    timer.setSingleShot(true);
+    timer.start(1000 * 60 * 60); //set timer for 1 hour (which would overflow Symbian RTimer)
+    QCoreApplication::processEvents();
+    QVERIFY(timer.isActive()); //if the timer completes immediately with an error, then this will fail
+    timer.stop();
+    QVERIFY(!timer.isActive());
+}
+
 QTEST_MAIN(tst_QTimer)
 #include "tst_qtimer.moc"