Application Program Facilities

The following list summarizes the main facilities offered to application programs:

Spool files can be closed temporarily, and later reopened for extension.
Job output is sent directly to your printers.
Spool files that contain JCL statements can be submitted for batch execution.
Output from existing jobs can be redirected to CA Spool without any JCL changes.
Individually assigned spool file names.
Conditional purge of empty spool files.
Spool files can be read (opened for input) forward or backward by any task.
Handling of abnormal program termination.
Sample programs are provided on the distribution tape.
A CA Spool spool file can be used as a scratch pad to hold data without any need for space allocation on a DASD volume.
No changes in calling sequence, parameters, or facilities, in different processing environments.
The Advanced Communication Interface provides full CA Spool console communication facilities. This enables application programs to perform any of the functions available to the console operator.
The ESFALLOC CALL Interface dynamically allocates a spool file on which ordinary PUT or WRITE statements can be performed.