Guidelines for POLL results

If FCAI-Result contains FCAI-Result-Status, additional processing is required by the user program:
- If the FCAI-Status field is FCAI-Status-InProgress, a prior SCMD request issued in no-wait mode or one that exceeded the FCAI-ReqTimer value is still in-progress. Obtain the final results with another POLL request.
- If the FCAI-Status field is FCAI-Status-PromptPass, the prior request has now completed but the next SCMD request must be a PASS subcommand. This status is applicable for the USER subcommand.
- If the FCAI-Status field is FCAI-Status-PromptAcct, the prior request has now completed but the next SCMD request must be an ACCT subcommand. This status is applicable for the USER, PASS, and CD subcommands.
- If FCAI-Status contains FCAI-Status-TraceFailed or higher, the interface trace function failed on this request. Subtract FCAI-Status-TraceFailed from FCAI-Status to obtain the remaining value for FCAI-Status. See FCAI_Status_TraceFailed and FCAI_TraceStatus: Reporting failures in the interface trace function for information about FCAI-Status-TraceFailed.
Aside from interface errors, POLL itself returns only FCAI-Status-InProgess. All other results are those of the prior SCMD request.
If the application issues POLL until FCAI-IE-NotInProgress is returned, the results from the prior subcommand are lost. Issue POLL only until FCAI-Status-InProgress is no longer returned.