Return and Reason Codes

When you invoke IXLLOCK, the macro returns the status of the request through return and reason codes. The return and reason code constants are defined in the IXLYCON macro.

Some examples of the type of status information returned from an OBTAIN request are:

The request is being processed asynchronously. Results will be presented to the complete exit.
The request is granted. You should check the appropriate output fields to determine if any attributes (such as state, user data, record data) were changed.
The request is superseded and ownership is not granted.
The request is denied by the contention exit that was managing contention for the resource.
The request has failed because of an environmental condition, such as structure failure or loss of connectivity to the coupling facility.