Programs define functions of this type to asynchronously detect conditions with EMS multicast that may affect message consumers.tibemsConnection connection,tibemsSession session,tibemsMsgConsumer consumer,tibems_status status,
This parameter receives a status code, which identifies the multicast problem. This parameter receives a text description describing the multicast problem. This parameter receives the closure data, which the program supplied in the call that registered the callback.When a program uses a multicast consumer to receive messages, EMS can detect conditions that may indicate a problem, and notify the client program by returning an error status code. The client application can then take the appropriate action.This callback provides a pathway for alerting a client program of multicast problems. The program implements this callback and registers it. When the client library detects a multicast problem, it calls this callback and passes it the appropriate EMS objects, a status code that identifies the problem, and a detailed description of the problem. This callback is invoked for each consumer that is affected by the multicast warning or error. Some applications may just simply log the problem; others may take further measures.Chapter 13, Using Multicast, in the TIBCO Enterprise Message Service User’s Guide
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