From fc2982c7c384fb764bba19f8b95d89f17986ab31 Mon Sep 17 00:00:00 2001
From: Klaus Basan <klaus.basan@klausbasan.de>
Date: Wed, 23 Sep 2015 15:02:32 +0200
Subject: [PATCH] refs #452, allow to "shutdown" threaded reader

---
 src/blackmisc/threadedreader.cpp | 6 ++++++
 src/blackmisc/threadedreader.h   | 7 ++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/blackmisc/threadedreader.cpp b/src/blackmisc/threadedreader.cpp
index 3589d675e..9524ff021 100644
--- a/src/blackmisc/threadedreader.cpp
+++ b/src/blackmisc/threadedreader.cpp
@@ -34,6 +34,12 @@ namespace BlackMisc
         QMetaObject::invokeMethod(m_updateTimer, "stop");
     }
 
+    void CThreadedReader::gracefulShutdown()
+    {
+        this->m_shutdown = true;
+        this->requestStop();
+    }
+
     CThreadedReader::~CThreadedReader()
     {
         cleanup();
diff --git a/src/blackmisc/threadedreader.h b/src/blackmisc/threadedreader.h
index 7b70882b8..f7cb2d1ea 100644
--- a/src/blackmisc/threadedreader.h
+++ b/src/blackmisc/threadedreader.h
@@ -54,11 +54,16 @@ namespace BlackMisc
         //! \threadsafe
         int interval() const;
 
+        //! Graceful shutdown
+        void gracefulShutdown();
+
     protected:
         //! Constructor
         CThreadedReader(QObject *owner, const QString &name);
 
-        QTimer *m_updateTimer = nullptr;         //!< update timer
+        QTimer *m_updateTimer = nullptr;  //!< update timer
+        bool m_shutdown = false;          //!< in shutdown process
+
         mutable QReadWriteLock m_lock {QReadWriteLock::Recursive}; //!< lock
 
         //! Make sure everthing runs correctly in own thread