ANSI C, C++

#include <dcmcf.h>
int  dc_mcf_rollback(DCLONG action)

K&R C

#include <dcmcf.h>
int  dc_mcf_rollback (action)
DCLONG      action;

The function dc_mcf_rollback() cancels processing between when the MHP service program that defines the transaction attribute is started and when the function dc_mcf_rollback() is called. If DCMCFRTRY is specified for action, processing between when the MHP is started and when the function dc_mcf_rollback() is called is canceled, and the canceled MHP processing is rescheduled.

action

Specify DCMCFRTRY, DCMCFRRTN, or DCMCFNRTN for the type of rollback.

DCMCFRTRY

Processing between the MHP is started and when the function dc_mcf_rollback() is called is canceled, and the canceled MHP processing is rescheduled (any received messages are stored at the end of the relevant input queue and the MHP is rescheduled). Control does not return from the function dc_mcf_rollback(), and the process is terminated.

DCMCFRRTN

Processing between the MHP is started and when the function dc_mcf_rollback() is called is canceled, and control returns. Processing after the normal termination of the function dc_mcf_rollback() with DCMCFRRTN specified is treated as another transaction.

DCMCFNRTN

Processing between the MHP is started and when the function dc_mcf_rollback() is called is canceled. Control does not return from the function dc_mcf_rollback(), and the process is terminated.