Have a general knowledge sharing session about XPEDITER.

Introduction to XPEDITER Creating environment for XPEDITER to run (Settings) Expediting batch programs

Objectives of this session

Mainframe tool for debugging.

Helps to intercept and analyze abends.

Automates the tasks of identifying problems, applying solutions, analyzing the impact of changes, and testing the fixes.

Introduction

Runs interactively or in batch. Intercepts application program abends Alters logic Displays and modifies the content of program

variables Controls the program execution at any point

i.e.. tests any program or program segment

starts or stops execution at any point

Features of XPEDITER

Bypasses unwanted code Traces logic flow Analyzes program structure and data flow Automatically generates a test script library Keeps a log of the test session activity Provides online HELP

Features of XPEDITER (cont..)

Source code is displayed in a fully scrollable window.

The inner working of the program can be viewed as each step executes.

While Xpediting a program…

Allocate Xpediter data sets

Invoke Xpediter Choose the utilities Create Xpediter environment Allocate program files Xpedite the program

Exit from Xpediter

Xpediting a program…

Allocating Xpediter datasets using ISPF option 3.2

Allocate Xpediter data sets

Datasets to be allocated are as follows:

Load data set o Load module for the compiled/linked modules and

programs will be stored Script data set

o Stores the scripts that are created during an Xpediter session

Allocate data set o Stores the allocations for all the files that the program

or modules will need in order to run properly

Allocate Xpediter data sets

Type ‘XP’ on the command line and press enter to begin the Xpediter session.

Invoke Xpediter

Choose option ‘5’ for utilities. Invoke Xpediter: Choose utilities

Choose option ‘3’ for DDIO file facility.

Invoke Xpediter: Choose utilities

In this file facility, the DDIO files are allocated. This file is used to store information that allows Xpediter to display the object code during a test session. Type a ‘C’ for create in the selection field and fill the relevant data.

Invoke Xpediter: Choose utilities

Complete the screen as follows and press enter

Invoke Xpediter: Choose utilities

To create the Xpediter environment. Select option ‘6’ from the Xpediter Primary Menu

Invoke Xpediter: Create environment

Select the appropriate option based on the location of the module or program you would like to compile, COBOL in this e.g..

Invoke Xpediter: Create environment

Complete the screen as shown in the example . A job will be executed to run the compile.

Invoke Xpediter: Create environment

The next step is to allocate program files. Type ‘1’ on the command line and press enter.

Invoke Xpediter:Allocate program files

Type ‘4’ for Edit Allocation List

Invoke Xpediter:Allocate program files

Complete the Edit File List screen as shown below.

Invoke Xpediter:Allocate program files

All output from the modules/programs that are tested in Xpediter must be sent to a data set to be viewed. Enter the DDNAME, DSNAME, & DISP of the data sets which will be used to test the modules.

Invoke Xpediter:Allocate program files

The next step in executing an Xpediter session is to invoke Xpediter. Select option ‘2’ on the Xpediter Primary Menu Screen

Invoke Xpediter:Xpedite the program

Choose option ‘1’ for Load Libraries.

Invoke Xpediter:Xpedite the program

1

Enter the name of the load libraries and press enter. This will take control back to the Xpediter Setup Menu.

Invoke Xpediter:Xpedite the program

Next step is to specify the DDIO file. Enter a ‘2’ on the command line and press enter.

Invoke Xpediter:Xpedite the program

Enter the name of the DDIO file

Invoke Xpediter:Xpedite the program

Your DDIO file.

Next, step is to setup the script libraries. Type ‘3’ on the command line

Invoke Xpediter:Xpedite the program

Enter the script library and the installation library.

Invoke Xpediter:Xpedite the program

Next, setup the log data set. Select option ‘4’.

Invoke Xpediter:Xpedite the program

Enter the relevant data.

Invoke Xpediter:Xpedite the program

Next, setup the test script dataset. Select option ‘5’.

Invoke Xpediter:Xpedite the program

Enter the relevant data.

Invoke Xpediter:Xpedite the program

The last step in executing and Xpediter session is actually executing Xpediter commands. Choose option ‘2’ from the Xpediter Primary Menu

Invoke Xpediter:Xpedite the program

In this panel, choose the program that is to be Xpedited.

Invoke Xpediter:Xpedite the program

This screen will display the source code of the module that is being tested.

The arrow always points to the current statement that is executing once execution has haulted.

Invoke Xpediter:Xpedite the program

SAME: Indicates that all characters to the right of those displayed are the same.

 MORE: Indicates that the characters to the right of those displayed are different.

Invoke Xpediter:Xpedite the program

SET KEEP ** : Sets size of AUTOKEEP window to **

Invoke Xpediter: Primary Commands

SHOW PFKEYS : Reset value of PFKEYS

Invoke Xpediter: Primary Commands

An example of the output for “SHOW PFKEYS”

Invoke Xpediter: Primary Commands

LOG : View log

Invoke Xpediter: Primary Commands

LOG : Output of “LOG” command.

Invoke Xpediter: Primary Commands

MOVE : Initialize or change the value of a variable

Invoke Xpediter: Primary Commands

TRACE ALL S : document each statement executed in a session

Invoke Xpediter: Primary Commands

SKIP xxx yy : Skip lines xxx to yyy.

Invoke Xpediter: Primary Commands

RETEST : Retest module without exiting Xpediter

Invoke Xpediter: Primary Commands

GO nn : Execute nn lines

Invoke Xpediter: Primary Commands

GOTO xxx : Goto the specified line number

Invoke Xpediter: Primary Commands

MONITOR ALL : prerequisite to execute REVERSE

Invoke Xpediter: Primary Commands

REVERSE : Executes the code to be tested backwards

Invoke Xpediter: Primary Commands

RESUME : Exit REVERSE mode

Invoke Xpediter: Primary Commands

INTERCEPT : Get the source code of another module in program

Invoke Xpediter: Primary Commands

SOURCE : To return to the calling module

Invoke Xpediter: Primary Commands

EXIT : End an Xpediter session

Invoke Xpediter: Primary Commands

Line Commands : A, B

Invoke Xpediter: Line Commands

B = breakpoint

The ‘A’ means execution should stop after this statement has executed.

Invoke Xpediter: Line CommandsLine Commands : C

C = count

Invoke Xpediter: Line CommandsLine Commands : D, Dx

D = delete

Invoke Xpediter: Line CommandsLine Commands : I

I = Insert

Invoke Xpediter: Line CommandsLine Commands : K

K = keep

Line Commands : P

Invoke Xpediter: Line Commands

Peek Elementary Command.

Peek Command.

Invoke Xpediter: Line CommandsLine Commands : X, XX

X = exclude

To end an Xpediter session, type ‘EXIT’ on the command line and press enter.

Exit from Xpediter

CommandsPrimary Commands

Command Description NoteSET KEEP ** Sets size of AUTOKEEP window to **SHOW PFKEYS Reset value of PFKEYSLOG View logMOVE Initialize or change the value of a

variableTRACE ALL S document each statement executed in a

session SKIP xxx yyy Skip lines xxx to yyy.

RETEST Retest module without exiting Xpediter

XPEDITER Commands

Commands Primary Commands

Command Description

GO nn Execute nn linesGOTO xxx Go To (This command should be avoided)MONITOR ALL Prerequisite to execute REVERSEREVERSE Executes the code to be tested

backwardsRESUME Exit REVERSE modeINTERCEPT Get the source code of another module in

program SOURCE To return to the calling module EXIT End an Xpediter session

XPEDITER Commands

Line Commands

Command Description Note

A Set Breakpoint After ‘A’ will appear (‘@’ if both

B Set Breakpoint Before ‘B’ will appear (‘@’ if both)

C Counts the number of times a line of code is executed

D Delete a line Block delete using DDDx Delete Breakpoint x can be A or B

or K

XPEDITER Commands

Line Commands

Command Description

I Insert a new lineK Keep operand Keep track of this on top

of screenP Peek operand Show on left of sourceX Exclude lines of code from the display screen

XPEDITER Commands

Thank You