Ibm SC34-6814-04 Manuel d'utilisateur télécharger pdf (Page 300)

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101

An exit program must make no assumptions about the contents of the

Performance Block and must not attempt to modify it: if it does so, the

results are unpredictable.

UEPTRCE

Address of a 1-byte trace flag indicating whether RMI tracing (the RI trace

component) is active.

UEPTRLV1 (X'80')

RMI level 1 trace is active.

UEPTRLV2 (X'40')

RMI level 2 trace is active.

Having tested this field, the task-related user exit could, for example, issue

an EXEC CICS SET TRACETYPE command to reset the level of RMI

tracing.

DFHUERTR (the function definition)

The function definition identifies the caller of the task-related user exit program. The

DSECT contains two symbolic definitions (fields).

UERTFGP

A single byte that is set to X'00'. The zero setting shows that this is a

task-related user exit invocation and that the parameter list therefore

includes the fields UEPTAA, UEPTAL, UEPEIB, UEPURID, and

UEPFLAGS.

UERTFID

A single-byte identifier that shows whether this call has been made by an

application program, the CICS SPI manager, the CICS syncpoint manager,

the CICS task manager, the CICS termination manager, CICS context

management, or by EDF. It can have one of the following seven settings:

UERTSPI

(X'01') CICS SPI call.

UERTAPPL

(X'02') Application program call.

UERTSYNC

(X'04') CICS syncpoint manager call.

UERTTASK

(X'08') CICS task manager call.

UERTCTER

(X'0A') CICS termination call.

UERTFEDF

(X'0C') EDF call.

UERTFCON

(X'0E') CICS context management call.

It is important to know which type of program has made the call because it affects

how the calling program’s parameter list is interpreted by the task-related user exit

program.

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Ibm SC34-6814-04 Manuel d'utilisateur Page 300

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