Documentation
IPS_GetInstanceMessageQueueSize
int IPS_GetInstanceMessageQueueSize ()
Returns
Number of not yet completely processed messages to instances
Description
This function is intended for internal use only and may change or be removed at any time without notice.
The function returns the number of messages that are to be delivered to instances and have not yet been completely processed by their MessageSink. A message to several instances counts once per instance. In normal operation the value is 0 or very small. A permanently rising value indicates that instances process messages more slowly than they arrive. Which instances are affected can be determined with IPS_GetInstanceMessageStatistics.
The function is available independently of the special switch "MessageQueueWatch".
Example
echo IPS_GetInstanceMessageQueueSize(); // e.g. returns 0