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User Exit Reference › USEREDIT User Exit (OS TMCs Only) › Return Codes

Return Codes

CA VM:Tape does not check return codes after calling this exit. For consistency, the exit should always zero-out Register 15 (R15) to indicate a return code of zero.

The exit makes any necessary changes to the volser field passed to it. The user exit can indicate to CA VM:Tape that the volser passed to it is not in the TMC. CA VM:Tape then treats the volser as foreign.

Indication by the exit to CA VM:Tape that the volser passed to CA VM:Tape is a foreign volser has the following effect on these commands:

Command

Effect

MOUNT

CA VM:Tape converts the mount to a foreign mount and processes it as such.

CATALOG

CA VM:Tape cancels the command with message VMT0083E.

EDIT

CA VM:Tape cancels the command with message VMT0083E.

LIST

CA VM:Tape cancels the command with message VMT0083E.