Description

   The cleanup routine is the final routine called in each
   interaction with TPU. It tells TPU to clean up its internal
   data structures and prepare for additional invocations. You can
   control what is reset by this routine by setting or clearing the
   flags described previously.

   When you finish with TPU, call this routine to free the memory
   and restore the characteristics of the terminal to their original
   settings.

   If you intend to exit after calling TPU$CLEANUP, do not
   delete the data structures; the operating system does this
   automatically. Allowing the operating system to delete the
   structures improves the performance of your program.

   Notes

   1. When you use the simplified interface, TPU automatically
      sets the following flags:

      o  TPU$V_RESET_TERMINAL

      o  TPU$V_DELETE_BUFFERS

      o  TPU$V_DELETE_JOURNAL

      o  TPU$V_DELETE_WINDOWS

      o  TPU$V_DELETE_EXITH
 

      o  TPU$V_EXECUTE_PROC

      o  TPU$V_EXECUTE_FILE

      o  TPU$V_PRUNE_CACHE

      o  TPU$V_KILL_PROCESSES

   2. If this routine does not return a success status, no other
      calls to the editor should be made.