Additional Sync Point Return Codes

When a remote TP issues a BACKOUT verb, the backout is reported to the local TP as a new primary return code value, AP_BACKED_OUT, on the next (current) verb issued. The local TP is provided access to the sense code information contained in the Backout FMH-7 by setting the secondary_rc field as follows:

This new return code will only be supplied on conversations with synclevel AP_SYNCPT, and therefore will not be presented to existing applications.

The verbs on which this new return code can be returned are:

CONFIRM

MC_CONFIRM

MC_PREPARE_TO_RECEIVE

MC_RECEIVE_AND_POST

MC_RECEIVE_AND_WAIT

MC_RECEIVE_IMMEDIATE

MC_SEND_DATA

MC_SEND_ERROR

PREPARE_TO_RECEIVE

RECEIVE_AND_POST

RECEIVE_AND_WAIT

RECEIVE_IMMEDIATE

SEND_DATA

SEND_ERROR