IBM AS/400 Example of ILE Program, Effect of ILE, ILE Program Using CRTBNDRPG, Crtbndrpg

ILE Program Using CRTBNDRPG

Example of ILE Program	Using		CRTBNDRPG
Figure 7		shows		the	run-time view of		an	application in which an		ILE CL pr
calls	an	ILE		RPG program		that is bound		to	a supplied service	program.
cation	runs		in	the	named	activation	group		XYZ.

Job

XYZ Activation Group

*PGM(X)

ILE CL

*PGM(Y)

ILE RPG

*SRVPGM(Z)

Supplied Service

Program

Figure 7. ILE Program Using CRTBNDRPG

Effect of ILE

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

Program call The system automatically creates the activation group if it already exist, when the application starts.

The application can contain dynamic program calls or static p dure calls. Procedures within bound programs call each othe using static calls. Procedures call ILE and OPM programs by using dynamic calls.

Data

The

lifetime

of

a

program's

storage

is

the

same

as

the

l

the activation group. Storage remains active

until

the

activ

group

is

deleted.

The

ILE

RPG

run

time

manages

data so that

the

semantics

o

ending

programs

and

reinitializing the

data

are

the

same

a

OPM

RPG,

although

the

actual

storage

is

not

deleted

as it

when

an

OPM

RPG

program ended. Data

is

reinitialized

if

th

vious call to the procedure ended

with

LR

on,

or

ended

a

mally.

Program data that is identified as exported or imported keywords EXPORT and IMPORT respectively) is external to the individual modules. It is known among the modules that are b into a program.

Files	By default,	file	processing	(including	opening, sharing, over
	and commitment control) by the			system is scoped to the act
	group level.	You	cannot share	files at	the data management

26 ILE RPG for AS/400 Programmer's Guide