(Purely guessing, might be totally wrong) There is no way to tell because there is no association between the processing done for the multiple DCBs other than possibly respect to backing out upon error.. Your exit will get control for each of these three and there is no difference to the exit between one OPEN with three DCBs and three consecutive OPENs.
So do whatever you would do if you saw three consecutive OPENs. (No fields in the LDA are programming interfaces, so use them completely at your own risk.) Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
