Builders

The builder modules:
  • Make the autoinstall process possible (that is, build a terminal control table terminal entry (TCTTE) dynamically).
  • Allows new TCT entries to be added on a running CICS® system.
  • Allow the TCT to be dynamically updated on a running CICS system.
  • Allow TCT entries to be deleted on a running CICS system.
  • Reduce emergency restart times for those systems that use the autoinstall function. These systems have to take the time to restore and recover only those terminals that were autoinstalled at the time of termination.
  • Reduce warm start times for those systems that use auto-install. No auto-installed terminals (except LU6.2 parallel systems are recovered at warm start).
  • Reduce shutdown times for those systems using auto-install. Auto-install catalog entries are deleted but the entry in storage is not destroyed during shutdown.

In this section, the term TCTTE is used in a general way to refer to the terminal control table entries for connections (TCT system entries, TCTSEs), mode groups (TCT modegroup entries, TCTMEs), sessions (session TCT terminal entries, TCTTEs), skeletons (TCTSKs), and models.

To build or delete a control block for a particular device, a set of builders is called. The set of builders is specified by a tree structure of patterns, each pattern specifying one builder.

The builder modules (DFHBS*) are link-edited together into the DFHZCQ load module.