added way to start DH immediately, bugfix in event manager

devicehandlers/DeviceHandlerBase.cpp

@@ -1385,6 +1385,10 @@ ReturnValue_t DeviceHandlerBase::initializeAfterTaskCreation() {
         pstIntervalMs = executingTask->getPeriodMs();
     }
     this->hkManager.initializeAfterTaskCreation();
+
+    if(setStartupImmediately) {
+        startTransition(MODE_ON, SUBMODE_NONE);
+    }
     return HasReturnvaluesIF::RETURN_OK;
 }
 
@@ -1402,6 +1406,10 @@ object_id_t DeviceHandlerBase::getObjectId() const {
     return SystemObject::getObjectId();
 }
 
+void DeviceHandlerBase::setStartUpImmediately() {
+    this->setStartupImmediately = true;
+}
+
 dur_millis_t DeviceHandlerBase::getPeriodicOperationFrequency() const {
     return pstIntervalMs;
 }