With the IXCMSGOX support for the specification of a timeout value, you can request that XCF queue a message that might otherwise have been rejected because of a lack of XCF resources. Specifying a non-zero timeout value tells XCF to save the message in XCF-managed storage until it can be sent. IXCMSGOX returns a return and reason code to the sender to indicate that it has accepted and queued the message for delivery. Note that if you do not specify a non-zero timeout value, XCF will reject the message if resources are not available.

XCF notifies the sender of message completion as specified when IXCMSGOX was invoked.