IBM AS/400 manual Example of OPM-Compatible Program, Effect of ILE, OPM-Compatible Application

OPM-Compatible Application

Example of OPM-Compatible Program

Figure 6	shows the run-time	view	of	a	sample	application where you might
OPM-compatible program. The		OPM application consisted of a CL program and
two RPG programs. In this		example,		one	of	the RPG programs has been
ILE; the	remaining programs	are	unchanged.

Job

Default Activation Group

*PGM(X)

OPM CL

*PGM(Y)

ILE RPG

*PGM(Z)

OPM RPG

Figure 6. OPM-Compatible Application

Effect of ILE

The following deals with the effects of ILE on the way your applicat

Program call

OPM programs behave as before. The system automatically

creates

the

OPM

default

activation

group

when

you start

yo

and all OPM applications run in it. One

program

can

call

anoth

program

in

the

default

activation

group

by

using

a

dynamic

Data

Storage

for

static

data

is

created

when

the program

is

and it exists until the

program

is

deactivated.

When

the

ends (either normally or abnormally), the program's storage i

deleted. To clean up storage for a

program

that

returns

w

ending,

use

the

Reclaim

Resource

(RCLRSC)

command.

Files

File

processing

is

the

same

as

in

previous

releases.

Files

closed

when

the

program

ends

normally

or

abnormally.

Errors

As in

previous

releases,

the

compiler

handles

errors

within

program separately. The errors you see that originated wi

program are the same as before. However, the errors are

communicated

between programs

by

the

ILE

condition

manager,

so you may see different messages

between

programs. The

sages may have new message

IDs,

so

if

your

CL

program

mon

tors

for

a

specific

message ID,

you

may

have

to

change

24 ILE RPG for AS/400 Programmer's Guide