z/OS DFSMS Using Data Sets
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JFCB Exit

z/OS DFSMS Using Data Sets
SC23-6855-00

This exit list entry does not define an exit routine. It is used with the RDJFCB macro and OPEN TYPE=J. The RDJFCB macro uses the address specified in the DCB exit list entry at X'07' to place a copy of the JFCB for each DCB specified by the RDJFCB macro.

The area is 176 bytes and must begin on a fullword boundary. It must be located in the user's address space. This area must be located below 16 MB virtual. The DCB can be either open or closed when the RDJFCB macro is run.

If RDJFCB fails while processing a DCB associated with your RDJFCB request, your task is abnormally terminated. You cannot use the DCB abend exit to recover from a failure of the RDJFCB macro. See z/OS DFSMSdfp Advanced Services.

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