Program processing within ILE occurs at the procedure level. ILE programs consist of one or more modules which in turn consist of one or more procedures. An ILE RPG module contains an optional main procedure and zero or more subprocedures. In this chapter, the term 'procedure' applies to both main procedures and subprocedures.
An ILE 'program call' is a special form of procedure call; that is, it is a call to the program entry procedure. A program entry procedure is the procedure that is designated at program creation time to receive control when a program is called. If the entry module of the program is an ILE RPG module, then the main procedure of that module is called by the program entry procedure immediately after the program is called.
This section contains general information on: