1 files changed, 25 insertions, 1 deletions
diff --git a/src/geniviextras/qdltregistration.cpp b/src/geniviextras/qdltregistration.cpp
index bef94d1..4ba638a 100644
--- a/src/geniviextras/qdltregistration.cpp
+++ b/src/geniviextras/qdltregistration.cpp
@@ -151,6 +151,16 @@ void QDltRegistrationPrivate::registerCategory(CategoryInfo &info)
     info.m_registered = true;
 }
 
+void QDltRegistrationPrivate::unregisterCategories()
+{
+    for (auto it = m_categoryInfoHash.begin(); it != m_categoryInfoHash.end(); ++it) {
+        if (it.value().m_registered) {
+            DLT_UNREGISTER_CONTEXT(*it.value().m_context);
+            it.value().m_registered = false;
+        }
+    }
+}
+
 void QDltRegistrationPrivate::registerApplication()
 {
     Q_ASSERT_X(!m_dltAppID.isEmpty(), "registerApplication", "dltAppID needs to be a valid char * on the first call.");
@@ -431,7 +441,7 @@ void QDltRegistration::registerUnregisteredContexts()
     for (auto it = d->m_categoryInfoHash.begin(); it != d->m_categoryInfoHash.end(); ++it) {
         if (!it.value().m_registered) {
             d->registerCategory(it.value());
-      }
+        }
     }
 }
 
@@ -459,6 +469,20 @@ void QDltRegistration::unregisterApplication()
 }
 
 /*!
+    Unregisters all categories and their associated context Ids from the dlt-daemon.
+
+    One application of this function could be to update the log level: after this function has been
+    called, all cetegories will be registered again (with new log level), when they are used next
+    time.
+*/
+void QDltRegistration::unregisterCategories()
+{
+    Q_D(QDltRegistration);
+    QMutexLocker l(&d->m_mutex);
+    d->unregisterCategories();
+}
+
+/*!
     The Qt message handler which forwards all the logging messages to the dlt-daemon.
 
     The function will map \a msgTypes to the appropriate dlt log level and forward the \a msg to