Output

The contention queue service returns these standard IPCS return codes to the caller:

Code: Meaning
00: The CQE create service completed normally.
04: The CQE was not created after an attention condition was detected. Preceding this return code, there are informational messages that provide additional diagnostic aid.
08: The symbol was not created after an error condition was detected. Preceding this return code, there are informational messages that provide additional diagnostic aid.
12: No CQE was created. The attention interrupt key might have been pressed.
16: An error in the IPCS environment was encountered. If the exit routine passed an incorrect PCQE, IPCS issues message BLS01001I to help you diagnose the problem with the parameter list.

A return code greater than 00 from the CQE create service should cause the ANALYZE exit routine to end processing.

When control is returned to the exit routine, IPCS will create a CQE, add it to the contention queue, and save it in the IPCS dump directory data set.

An exit routine can call the contention queue service as many times as is necessary for a given contention situation.