CL Programming Functions and Messaging

Overview

Audience Personnel writing and updating CL programs, including programmers, system programmers, and system operators.

Prerequisites

The student must have completed Introduction to CL Programming or equivalent.

Objectives

After completing this course, the student should be able to:
  • Describe and use built-in functions (%SUBSTRING, %SWITCH, etc.).
  • Retrieve job and system values into a Control Language program.
  • Understand and describe Program Message Queues.
  • Understand the use of message types.
  • Monitor for system messages sent to your Control Language program.
  • Send various message types through the system, using Control Language programs.

Course Content

Unit 1 CL PROGRAMMING FUNCTIONS AND MESSAGING PRETEST

Unit 2 CL BUILT-IN FUNCTIONS

  • Built-in Functions
  • .. %Substring
  • .. %Switch

Unit 3 RETRIEVING VALUES INTO A CL PROGRAM

  • Retrieving Job Values
  • Retrieving System Values
  • Built-in Functions
  • .. %Binary

Unit 4 CL PROGRAM MESSAGE QUEUES

  • Program Message Queues
  • Message Types
  • MONMSG command
  • Global vs Command Monitors

Unit 5 SENDING MESSAGES WITH A CL PROGRAM

  • Sending Messages
  • Commands for Sending Messages
  • Sending Messages to Users
  • Sending Messages Between Programs

Unit 6 CL PROGRAMMING FUNCTIONS AND MESSAGING MASTERY TEST
 
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