Immediate servers are intended to process DO TSO, DO KSL, and DO SHELL statements which must be processed immediately without waiting in a queue. An Immediate server is started for the execution of a single DO statement; it executes the statement and then terminates upon completion of the statement execution. A request is processed by an Immediate server if at least one of the following conditions is true:
The DO statement specifies IMMEDIATE Y.
A DO statement is targeted for execution by a General server but no General server is defined in the Control-O installation.
Queue time-out (described later) occurred for that DO statement. Immediate servers handle a preset environment, specified in the INITPROC parameter, in the same manner as General servers (that is, first the server is initialized, then the DO statement is executed, and then the server is terminated).
