User Exit Reference › USREXIT1 User Exit › Definitions

Definitions

A(VM userid)

Indicates the address of the user ID requesting the tape mount. If the mount is part of a CA VM:Batch job, it is the user ID of the user submitting the CA VM:Batch job. This field is padded on the right with blanks; that is, it is left-justified.

Following user ID is an 80-byte work area that you can use to pass information between exits. Note that this area is used by the Bin system exits BINEXIT3 and BINACNT. Be sure these areas are not overlaid if using the Bin system.

A(VM userid account number)

Indicates the address of the 8-byte account number obtained from the VMBLOK or ACCTBLOK of the user ID issuing the mount. Also, if the mount is part of a CA VM:Batch job, it is the account number of the user submitting the CA VM:Batch job.

A(Volser requested)

Indicates the address of the 6-byte volser that was requested by the user. Note this is the address of a six-byte volser and not the address of the TMC record for that volser.

A(Common User Exit Buffer)

Indicates the address of the 256-byte work area to be used for passing information between the various user exits. This work area is specific to each command being processed by CA VM:Tape and cannot be used across commands.

A(Temporary TMC Record)

Indicates the address of the 340-byte temporary TMC record for the foreign volser that is being mounted. The file TMRECORD COPY on the CA VM:Tape 192 minidisk describes the format of this record. Use it to access various fields in the record. Because this record is temporary, some fields will contain default values or nulls. The record is deleted when the MOUNT process completes.

A(MOUNT Control Block Flags)

Indicates the address of the internal MOUNT Control Block Flags for this MOUNT request.

Important! Do not change or alter the value of these flags. Each flag field may have multiple flag values set so a TM instruction should be used to test for any specific condition.