From 79832f2156745ee2c6608ce7425fb2350b56f18d Mon Sep 17 00:00:00 2001
From: Bea Lam <bea.lam@nokia.com>
Date: Fri, 9 Apr 2010 16:01:26 +1000
Subject: Make sure WorkerScript thread is stopped on deletion. This also fixes
 the leaking of the worker agent in ListModel.

---
 src/declarative/qml/qdeclarativeworkerscript.cpp            | 13 +++++++++++++
 .../qdeclarativelistmodel/tst_qdeclarativelistmodel.cpp     |  3 ---
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/src/declarative/qml/qdeclarativeworkerscript.cpp b/src/declarative/qml/qdeclarativeworkerscript.cpp
index caf680e..9e137b5 100644
--- a/src/declarative/qml/qdeclarativeworkerscript.cpp
+++ b/src/declarative/qml/qdeclarativeworkerscript.cpp
@@ -107,6 +107,10 @@ class QDeclarativeWorkerScriptEnginePrivate : public QObject
 {
     Q_OBJECT
 public:
+    enum WorkerEventTypes {
+        WorkerDestroyEvent = QEvent::User + 100
+    };
+
     QDeclarativeWorkerScriptEnginePrivate(QDeclarativeEngine *eng);
 
     struct ScriptEngine : public QDeclarativeScriptEngine 
@@ -159,6 +163,9 @@ public:
     static QScriptValue onMessage(QScriptContext *ctxt, QScriptEngine *engine);
     static QScriptValue sendMessage(QScriptContext *ctxt, QScriptEngine *engine);
 
+signals:
+    void stopThread();
+
 protected:
     virtual bool event(QEvent *);
 
@@ -246,6 +253,9 @@ bool QDeclarativeWorkerScriptEnginePrivate::event(QEvent *event)
         WorkerLoadEvent *workerEvent = static_cast<WorkerLoadEvent *>(event);
         processLoad(workerEvent->workerId(), workerEvent->url());
         return true;
+    } else if (event->type() == (QEvent::Type)WorkerDestroyEvent) {
+        emit stopThread();
+        return true;
     } else {
         return QObject::event(event);
     }
@@ -429,6 +439,7 @@ QDeclarativeWorkerScriptEngine::QDeclarativeWorkerScriptEngine(QDeclarativeEngin
 : QThread(parent), d(new QDeclarativeWorkerScriptEnginePrivate(parent))
 {
     d->m_lock.lock();
+    connect(d, SIGNAL(stopThread()), this, SLOT(quit()), Qt::DirectConnection);
     start(QThread::LowPriority);
     d->m_wait.wait(&d->m_lock);
     d->moveToThread(this);
@@ -440,8 +451,10 @@ QDeclarativeWorkerScriptEngine::~QDeclarativeWorkerScriptEngine()
     d->m_lock.lock();
     qDeleteAll(d->workers);
     d->workers.clear();
+    QCoreApplication::postEvent(d, new QEvent((QEvent::Type)QDeclarativeWorkerScriptEnginePrivate::WorkerDestroyEvent));
     d->m_lock.unlock();
 
+    wait();
     d->deleteLater();
 }
 
diff --git a/tests/auto/declarative/qdeclarativelistmodel/tst_qdeclarativelistmodel.cpp b/tests/auto/declarative/qdeclarativelistmodel/tst_qdeclarativelistmodel.cpp
index 8214723..5962a42 100644
--- a/tests/auto/declarative/qdeclarativelistmodel/tst_qdeclarativelistmodel.cpp
+++ b/tests/auto/declarative/qdeclarativelistmodel/tst_qdeclarativelistmodel.cpp
@@ -337,7 +337,6 @@ void tst_QDeclarativeListModel::dynamic_worker()
     }
 
     delete item;
-    QTest::ignoreMessage(QtWarningMsg, "QThread: Destroyed while thread is still running");
     qApp->processEvents();
 }
 
@@ -367,7 +366,6 @@ void tst_QDeclarativeListModel::convertNestedToFlat_fail()
     QCOMPARE(model.count(), 2);
 
     delete item;
-    QTest::ignoreMessage(QtWarningMsg, "QThread: Destroyed while thread is still running");
     qApp->processEvents();
 }
 
@@ -427,7 +425,6 @@ void tst_QDeclarativeListModel::convertNestedToFlat_ok()
     QCOMPARE(model.count(), count+1);
 
     delete item;
-    QTest::ignoreMessage(QtWarningMsg, "QThread: Destroyed while thread is still running");
     qApp->processEvents();
 }
 
-- 
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