IBM AS/400 manual Setting and Removing, Breakpoints

Setting

and

Removing

Breakpoints

The current

thread

is

the

thread

that

is

currently

being

debugged.

De

mands

are

issued

to this

thread.

When

a

debug

stop

occurs,

such

the

current

thread

is

set to

the

thread

where

the

debug

stop

ha

THREAD

command

and the 'Work with Debugged Threads' display can

be

us

change

the

current

thread.

To

remove

an

unconditional thread breakpoint use the

CLEAR

debug

command

When a thread breakpoint is cleared,

it

is

cleared for the

curren

Setting and Removing

Conditional

Job

Breakpoints

You

can

set

or

remove

a

conditional

job breakpoint

by

using:

¹ The

Work

with

Module

Breakpoints display

¹ The BREAK debug command to set a job breakpoint

¹The CLEAR debug command to remove a breakpoint

Note:	The relational operators supported for	conditional<,		breakpoints>,=,		are
	<=, >=, and<> (not equal).
One	way you can set or remove conditional	job	breakpoints		is through
with	Module Breakpoints display. You access	the	Work	with	Module	Brea

display from the Display Module Source display by pressing F13 (Work

breakpoints). The display provides				you	with a list of options which
either add	or	remove	conditional	and	unconditional job breakpoints. An
the display	is	shown	in Figure 82	on	page 182.

To make the job breakpoint conditional, specify a conditiConnal- expressi dition field. If the line on which you want to set a job breakpoint statement, the breakpoint will be set at the next runnable statement.

If

a thread

column

is

shown,

before pressing Enter,Threadtypefield*JOB. in

Once

you

have

finished

specifying

all

of

the

job

breakpoints,

you

You

can

use F21 (Command

Line)

from

the

Display

Module

Source

display

the program object from a command

line

or

call

the

program

after

ex

display.

When a statement with a conditional job breakpoint is reached, the

expression associated

with the

job

breakpoint

is

evaluated

before

run.

If the result is false,

the

program object continues to run.

the program object stops, and

the

Display

Module

Source display

is

point, you can evaluate fields,

set

more

breakpoints,

and

run

any

of

commands.

An alternate method of setting

and

removing

conditional

breakpoints

is t

BREAK

and

CLEAR

debug

commands.

To set a conditional breakpoint using the BREAK debug command, type:

BREAK line-number WHEN expression

on the debug command line. Thelinevariable-numberis the line number in the currently displayed view of the module object on which you want to and expression is the conditional expression that is evaluated when the

Chapter 11. Debugging Programs181