Extensions.EventHandling.WaitForEvent

Classification

Name	WaitForEvent
Short Description	Wait until an event is triggered and then continues processing
Class	Action
Extension	OTX EventHandling extension
Group	EventHandling related actions
Exceptions	-
Checker Rules	-
Standard Compliant	Yes

OTL Syntax

EventHandling.WaitForEvent(EventSourceTerm, EventVariable);

Description

The OTX WaitForEvent activity blocks the current flow (thread) until a specified event sources has triggered an event. When an event is triggered, completed the WaitForEvent activity and the process continues with the next activity. The event that led to the termination of the activity can be evaluated using the Event property, see below.

Ending the waitforevent activity, all on-the-fly (ie on the corresponding event source term, see Property Source) event sources generated automatically.

Properties

Name	Data Type	Class	Default	Cardinality	Description
Event	Event	Variable	-	[0..1]	After an event is triggered, this variable contains the corresponding event.
EventSource	EventSource	Term	-	[1]	One or more event sources. The order is insignificant. Once a source triggering an event, the waiting is ended.

OTL Examples

Boolean Bool1 = false;
EventHandling.EventSource EventSource1;

EventSource1 = EventHandling.MonitorChangeEventSource(Bool1);
parallel
{
   lane
   {
      Bool1 = true;
   }
   lane
   {
     EventHandling.WaitForEvent({EventSource1}, Event1);
   }
}

See also

CloseEventSource