From f620147fe6a3a0d447b843184a5b80afc754bd7f Mon Sep 17 00:00:00 2001
From: Klaus Basan <klaus.basan@klausbasan.de>
Date: Tue, 19 Nov 2019 19:12:35 +0100
Subject: [PATCH] [FSD] Thread utility function to "call function in its own
 thread"

---
 src/blackmisc/threadutils.cpp | 16 ++++++++++++++++
 src/blackmisc/threadutils.h   |  5 +++++
 2 files changed, 21 insertions(+)

diff --git a/src/blackmisc/threadutils.cpp b/src/blackmisc/threadutils.cpp
index 0e0b4578a..aee154f42 100644
--- a/src/blackmisc/threadutils.cpp
+++ b/src/blackmisc/threadutils.cpp
@@ -12,6 +12,8 @@
 #include <QObject>
 #include <QThread>
 #include <QtGlobal>
+#include <QPointer>
+#include <QTimer>
 
 namespace BlackMisc
 {
@@ -87,4 +89,18 @@ namespace BlackMisc
     {
         return threadInfo(QThread::currentThread());
     }
+
+    bool CThreadUtils::callInObjectThread(QObject *object, std::function<void()> callFunct)
+    {
+        if (!object) { return false; }
+        if (CThreadUtils::isCurrentThreadObjectThread(object)) {  return false; }
+
+        QPointer<QObject> myself(object);
+        QTimer::singleShot(0, object, [ = ]
+        {
+            if (!myself) { return; }
+            callFunct();
+        });
+        return true;
+    }
 } // ns
diff --git a/src/blackmisc/threadutils.h b/src/blackmisc/threadutils.h
index f99fabf60..c0d5e5f0c 100644
--- a/src/blackmisc/threadutils.h
+++ b/src/blackmisc/threadutils.h
@@ -12,7 +12,9 @@
 #define BLACKMISC_CTHREADUTILS_H
 
 #include "blackmisc/blackmiscexport.h"
+
 #include <QThread>
+#include <functional>
 
 namespace BlackMisc
 {
@@ -52,6 +54,9 @@ namespace BlackMisc
 
         //! Info about current thread
         static const QString currentThreadInfo();
+
+        //! Call in object's thread IF not already in object's thread
+        static bool callInObjectThread(QObject *object, std::function<void()> callFunct);
     };
 } // ns