Using the IXLSYNCH MODEVAL Parameter

There might be times when the system is not able to process your IXLSYNCH immediately, such as when the system could not obtain its internal latches needed to process the request.

You can specify how you want the system to process your request if it cannot be serviced immediately by using the MODEVAL parameter on IXLSYNCH. If the request can be processed immediately, the MODEVAL parameter is ignored. The following are valid MODEVAL specifications for an IXLSYNCH request:

IXLMODESYNCSUSPEND: Specifies that you do not want control returned until processing for the request is complete. If request processing is delayed because of needed internal latches, you will be suspended until the request completes. You will receive control at the next sequential instruction with the request complete and the final disposition determined.
IXLMODESYNCFAIL: Specifies that if the system cannot process your request without a delay, the request is to be cancelled. You will receive return and reason codes indicating that disposition of your request.

The constant values that are valid for MODEVAL are defined in IXLYCON. If you specify a value for MODEVAL other than one of the IXLYCON constants that is valid for a particular request type, the system fails the IXLSYNCH request.