xa_prepare - XA_PREPARE_EXIT

XA_PREPARE_EXIT provides an xa_prepare exit function to perform before and after xa_prepare processing. Use function identifier MQXF_XAPREPARE with exit reasons MQXR_BEFORE and MQXR_AFTER to register the before and after xa_prepare call exit functions.

The interface to this function is:

XA_PREPARE_EXIT (&ExitParms, &ExitContext, &Hconn, &pXID, &Rmid, &Flags, &XARetCode)

where the parameters are:

ExitParms (MQAXP) - input/output: Exit parameter structure.
ExitContext (MQAXC) - input/output: Exit context structure.
Hconn (MQHCONN) - input: Connection handle.
pXID (MQPTR) - input/output: Transaction branch ID.
Rmid (MQLONG) - input/output: Resource manager identifier.
Flags (MQLONG) - input/output: Resource manager options.
XARetCode (MQLONG) - input/output: Response from XA call.

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 */
     MQPTR   pXID;        /* Transaction branch ID */
     MQLONG  Rmid;        /* Resource manager identifier */
     MQLONG  Flags;       /* Resource manager options*/
     MQLONG  XARetCode;   /* Response from XA call */

The queue manager then logically calls the exit as follows:

XA_PREPARE_EXIT (&ExitParms, &ExitContext, &Hconn, &pXID, &Rmid, &Flags, &XARetCode);

Your exit must match the following C function prototype:

typedef void MQENTRY XA_PREPARE_EXIT (
     PMQAXP   pExitParms,   /* Address of exit parameter structure */
     PMQAXC   pExitContext, /* Address of exit context structure */
     PMQHCONN pHconn,       /* Address of connection handle */
     PMQPTR   ppXID,        /* Address of transaction branch ID */
     PMQLONG  pRmid,        /* Address of resource manager identifier */
     PMQLONG  pFlags,       /* Address of resource manager options*/
     PMQLONG  pXARetCode);  /* Address of response from XA call */

Parent topic: Exit functions