public List processAck ( ControlAck ackMsg ) throws SIRollbackException , SIConnectionLostException , SIResourceException , SIErrorException { if ( TraceComponent . isAnyTracingEnabled ( ) && tc . isEntryEnabled ( ) ) SibTr . entry ( tc , "processAck" , new Object [ ] { ackMsg } ) ; // Get the ackPrefix from the message long ackPrefix = ackMsg . getAckPrefix ( ) ; List indexList = processAck ( ackMsg , ackPrefix ) ; if ( TraceComponent . isAnyTracingEnabled ( ) && tc . isEntryEnabled ( ) ) SibTr . exit ( tc , "processAck" , indexList ) ; return indexList ; }
Process an Ack control message . This method uses the completed prefix in the ack to decide if the stream s completed prefix should be advanced .