Backout - MQ_BACK_EXIT

MQ_BACK_EXIT provides a backout exit function to perform before and after backout processing. Use function identifier MQXF_BACK with exit reasons MQXR_BEFORE and MQXR_AFTER to register before and after backout call exit functions.

The interface to this function is:

MQ_BACK_EXIT (&ExitParms, &ExitContext, &Hconn, &CompCode, &Reason)

where the parameters are:

ExitParms (MQAXP) - input/output

Exit parameter structure.

ExitContext (MQAXC) - input/output

Exit context structure.

Hconn (MQHCONN) - input

Connection handle.

CompCode (MQLONG) - input/output

Completion code, valid values for which are:

MQCC_OK: Successful completion.
MQCC_WARNING: Partial completion.
MQCC_FAILED: Call failed

Reason (MQLONG) - input/output

Reason code qualifying the completion code. If the completion code is MQCC_OK, the only valid value is:

MQRC_NONE: (0, x'000') No reason to report.

If the completion code is MQCC_FAILED or MQCC_WARNING, the exit function can set the reason code field to any valid MQRC_* value.

C language invocation

The queue manager logically defines the following variables:

        MQAXP    ExitParms;      /* Exit parameter structure */
        MQAXC    ExitContext;    /* Exit context structure */
        MQHCONN  Hconn;          /* Connection handle */
        MQLONG   CompCode;       /* Completion code */
        MQLONG   Reason;         /* Reason code qualifying completion code */

The queue manager then logically calls the exit as follows:

MQ_BACK_EXIT (&ExitParms, &ExitContext, &Hconn, &CompCode, &Reason);

Your exit must match the following C function prototype:

void MQENTRY MQ_BACK_EXIT (
PMQAXP    pExitParms,       /* Address of exit parameter structure */
PMQAXC    pExitContext,     /* Address of exit context structure */
PMQHCONN  pHconn,           /* Address of connection handle */
PMQLONG   pCompCode,        /* Address of completion code */
PMQLONG   pReason);         /* Address of reason code qualifying completion
                               code */

Parent topic: Exit functions